Abstract:Epoxy-modified polyether ploysiloxane (EP-PSix-EP, x=30cst, 100cst, 800cst) was synthesized by ployethylene glycol diglycidyl ether and polydimethylsiloxane using TBAB and NaOH as catalyst, acetone and n-hexane as solvent. Then, quaternary ammonium organic silicon gemini surfactants (C12-PSix-C12, x=30cst, 100cst, 800cst) were synthesized by quaternarization of EP-PSix-EP with N,N-demethyldodecylaminein, in the presence of anhydrous ethanol and HCl aqueous solution. The effect of spacer length on characteristics of quaternary ammonium organic gemini surfactant was investigatedby measurement of surface activity, wettability, emulsion stabilityand antibacterial property.Experimental results showed that with decreasing of siloxane spacer length, emulsion stability and wettabilityof C12-PSix-C12 increased. Three kinds of quaternary products have antibacterial properties. Decreasing the siloxane spacer length of C12-PSix-C12, the antibacterial properties increased.

Abstract:To increase the service life of silicon particles used in the lithium-ion batteries, a linear carbon material was used to form a sponge structure. This linear material is obtained by microwave processing polypyrrole. On the sponge structure, a layer of graphene was covered to form a double layer structure. This double layer structure did not change the volume expansion of silicon particles but provided a buffer space for the expansion of silicon and prevented silicon particles detached from the collector during the charge/discharge cycle process. Then the capacity and cycle performance of the battery was improved. When the Si particles with the size of 0.5~5μm used in the electrodes, it delivers a capacity as high as 829.6 mAh?g-1 after 100 cycles at the current density of 500 mA?g-1.

Abstract:The melt blown polypropylene nonwovens (MBPP) as the substrate, butyl methacrylate (BMA) as a transitional body (BPO) benzoyl peroxide as initiator grafted graphene oxide(GO), and the ascorbic acid reduction reduction of graphene oxide, preparation of graphene modified PP meltblown non weaving material. By using scanning electron microscopy (SEM) Fu Liye, elemental analysis, infrared spectroscopy (FTIR), Raman spectroscopy analysis and characterization of modified polypropylene meltblown nonwovens and its absorption properties were tested. The results show that the saturated oil absorption rate increased from 29.65g/g to 34.66g/g, graphene modified material meltblown polypropylene nonwoven after oil retention and reuse the rate was almost not affected.

Abstract:A novel method for obtaining cotton linters cellulose sulfonate and carboxylate (CLCSC) using cotton linters cellulose, sulfamic acid, and succinic anhydride by a one-pot synthesis has been developed. The structure of CLCSC was determined by IR and 13CNMR. The molecular weight was measured by GPC (Mw = 2.29× 103 to 1.94× 104). The effect of pH on the solution viscosity was studied. Experimental results showed that the substitution degree up to 0.92. The samples with different DS exhibited good and low viscosity stability from pH 2 to 12. When the proportion of the cement water-reducing agent is 1%, the water reducing ratio can reach 28.5%. The results of application of CLCSC in concrete also indicate that CLCSC can improve the strength of concrete. Thus, CLCSC has the potential to be developed as high-range water-reducing agent.

Abstract:A series of metal-supported catalysts were prepared by impregnation method for the hydrogenation of biphenyl to cyclohexylbenzene(CHB). The catalytic performance of Cu modified Ni-based catalysts(Ni-Cu/Al2O3) were investigated extensively. And the prepared catalysts were characterized byX-ray powder diffraction (XRD), nitrogen adsorption desorption (BET), scanning electron microscopy (SEM) and transmission electron microscopy (TEM).It is found that: Cu particles precipitate preferentially over Ni particles on the surface of Ni-Cu/Al2O3, so that the surface Ni active sites are diluted and the corresponding Ni particles are smaller, thusthe selectivity for CHB is increased. The results show that the selectivity for CHB is reached 99.8% at 94.7% of biphenyl conversion over 50%Ni-10%Cu/Al2O3using cyclohexane as a solvent at 2.2MPa H2 pressure, 200℃for 4h. When the catalyst was reused 10 times, the conversion of biphenyl decreased slightly, while the selectivity of CHB was almost unchanged.

Abstract:The efficient utilization of cellulose for producing methane fuel is of great significance to the sustainable development of human society. In this article, nanoporous Ru catalyst was employed for the transformation of cellulose to methane under the relatively mild conditions of 220 °C and initial H2 pressure 0.5 MPa, and the conversion of cellulose is 75.8% with 82.2% selectivity of methane using H2O as solvent. The catalyst was reused for 10 times, and the highest yield of CH4 was 79.5%. The reaction mechanism of cellulose transformation and structure change of cellulose in the process were studied. Results showed that cellulose transformation consist of two parts, which are acid-catalyzed hydrolysis process and nanoporous Ru-catalyzed hydrogenation process. Therefore, a bifunctional nanoporous Ru was designed with Brønsted acid sites by Mo, W, Re and V doping. The conversion rate of cellulose was significantly increased and yield of methane increased by 9.6% with the bifunctional nanoporous Ru.

Abstract:The biological aviation kerosene was produced by one-step hydro treatment over Pt/SAPO-11-mp with palm oil as raw material in the high-pressure micro fixed bed. Based on single factor experiments, Box-Behnken central composite design by response surface methodology was applied to study the effect of the process conditions about temperature, pressure, space velocity, hydrogen oil ratio (hydrogen volume/ palm oil volume) on the percentage of C8-C16 hydrocarbons. At last, the response surface optimization experimental results show that the temperature of 382.2℃, pressure of 3.9MPa, space velocity of 1.2h-1, hydrogen oil ratio of 911.0 are the best experimental reaction conditions. Under these conditions, the verification experiment was carried out 3 times，the selectivity of C8-C16 hydrocarbons and C8-C16 iso-alkanes respectively are proved 44.9% and 27.9%

Abstract:The nitrilase from Arthrobacter aurescens CYC705 was used to catalyze the synthesis of iminodiacetic acid (IDA) in this work. The biocatalyst form, optimization of biocatalysis process and scale-up of the reaction system were investigated in detail. Several biocatalyst forms including the aminated carrier immobilized nitrilase, epoxy carrier immobilized nitrilase, sodium alginate immobilized cells, chitosan immobilized cells and free whole cells were prepared and compared. It was found that the chitosan immobilized cells showed the highest catalytic efficiency and the best stability. After optimizing the reaction system, reaction temperature, metal ion concentration, substrate concentration and addition amount of chitosan immobilized cells, the optimal reaction conditions were obtained as follows: taking 50 mmol/L pH 6.6 Na2HPO4-citric acid buffer as the reaction medium, iminodiacetonitrile (IDAN) concentration 200 mmol/L, final CoCl2 concentration in the reaction medium of 1 mmol/L, reaction temperature 37 ˚C, chitosan immobilized cells addition amount 0.25 g/5 mL reaction volume. Under these conditions, IDAN could be hydrolyzed to IDA completely in 2 h. Further, the reaction system was amplified 10 times. It was found that the time required to catalyze the full conversion of 200 mmol/L IDAN to IDA was only 1h.

Abstract:Four fine chemicals were designed, synthesized, characterized, and used as multifunctional lubricant additives. Their thermal stability were investigated, and their oil solubility and corrosion resistance in liquid paraffin (LP) were studied. The tribological performances of four additives were systematically evaluated with a four-ball machine. The surfaces morphology and elementary composition of the worn scar was recorded and analyzed by scanning electron microscopy (SEM) and energy dispersive spectroscopy (EDS), and the reaction mechanism was initially discussed. It was found that the four additives exhibit high thermal stability, good oil solubility and excellent corrosion resistance. Four additives could obviously improve the extreme pressure performance, wear resistance performance and anti-friction performance of LP. The additives were involved in the tribochemical reaction, and a complex reaction film was formed during the friction process.

Abstract:To enhance the hemostatic effect of chitosan, a long chain alkyl group was connected to the amino group of chitosan by acylation to form hydrophobic chitosan. Single factor experiments were used to optimize the temperature and the concentration in the reaction process. The viscosity, degree of substitution and coagulation effect of hydrophobic chitosan were used as evaluation indexes. The optimum conditions were as follows: the temperature 55 ℃, 1% (g / ml) chitosan, 0.3% (g/ml) lauric acid anhydride. Its properties were characterized by IR, NMR and contact angle. It showed that hydrophobic chitosan was synthesized. The results of coagulation experiments showed that the hemostatic effect of hydrophobic chitosan was positively correlated with its degree of substitution in a certain range. When the degree of substitution was less than 9%, the hemostatic effect of 1% (g/ml) hydrophobic chitosan acetic acid solution was not ideal. When the degree of substitution was higher 15%, the same concentration of hydrophobic chitosan acetic acid solution was in a gel state and could not be fully mixed with the blood, and seriously affected the hemostatic effect. It was found that the hydrophobic chitosan with a degree of substitution 9% -15% has a good coagulation effect after mixed with blood and the concentration of hydrophobic chitosan was not less than 0.75% (g/ml). The mouse liver hemostasis experiment showed that hydrophobic chitosan powder could quickly stop bleeding and the effect was significantly better than that of chitosan. Therefore, the hydrophobic chitosan synthesized can significantly improve the hemostatic effect of chitosan. It is expected to be developed into a new quickly hemostatic material in the future.

Abstract:N, Al doped TiO2 and N, Al co-doped TiO2 composites were prepared by sol-gel method, respectively. The photocatalytic degradation efficiency of dyes methyl orange, methylene blue and rhodamine B under visible light was studied. The catalysts were characterized and evaluated by XRD, SEM, XPS, UV-Vis DRS, and N2 adsorption-desorption. The experimental results show that the crystal structure of N, Al co-doped TiO2 remains as anatase, the specific surface area increases, and the agglomeration phenomenon slightly decreases. N, Al co-doped TiO2 catalyst has the best degradation effect on methyl orange under visible light, and the decolorization rate can reach 70%.

Abstract:Solvent-assisted flavor evaporation (SAFE) and gas chromatography-mass spectrometry (GC-MS) were used to analyze the volatile flavor components of the fresh garlic and fried garlic oil. A total of 39 volatile compounds were identified in fresh garlic, 62 volatile compounds were identified in fried garlic oil. Differences in the volatile flavor constituents of fresh garlic and fried garlic oil mainly reflected in heterocyclic，ethers and aldehydes compounds. By gas chromatography-olfactometry-mass spectrometry (GC-O-MS) combined with odor activity values (OAV) analysis, due to the content of 3-vinyl-4H-1,2-dithiin (fresh garlic 98.366 ng/g, fried garlic oil 8.665 ng/g), 2-vinyl-4H-1,3-dithiin (fresh garlic 293.530 ng/g, fried garlic oil 18.522 ng/g), 3H-1,2-dithiolene (fresh garlic 6.177 ng/g, fried garlic oil 0.050 ng/g) and diallyl disulfide (fresh garlic 18.024 ng/g, fried garlic oil 5.633 ng/g) in garlic oil is lower than the content of fresh garlic, weakened spicy odor of garlic and smell of fresh garlic in fried garlic oil, the presence of E,E-2,4-Decadienal(0.112 ng/g) provided fried order for fried garlic oil.

Abstract:Alkaline fuel cells are concerned due to its stable performance and no limit of catalyst choice (not only precious metals). The choice of anode catalysts influence the oxidation rate of fuel and efficiency, stability and cost of alkaline fuel cell. In this paper, the research status of anode catalysts in recent years have been explored from the aspects of catalyst type, carrier and preparation methods. It has been found that the alloy catalyst doped with different metals can effectively improve the electrocatalytic activity. The type of catalyst carrier, the loading amount and the dispersion degree of the anodic catalyst can affect the catalyst stability. The addition of the metal oxide to the catalyst can simultaneously improve the electrocatalytic activity and stability. The modification of catalyst preparation method can improve the electrochemical specific surface area of the catalyst and change the distribution of the elements.

Abstract:In order to improve the electrochemical performances, the precursor of LiNi0.5Mn1.5O4 is synthesized by spray drying and electrospinning. The cathode materials are characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM) and transmission electron microscopy (TEM). The electrochemical performances of the battery are measured by galvanostatic charge-discharge, cyclic voltammetry (CV) and the electrochemical impedance spectroscopy (EIS). The results show that the as-prepared LiNi0.5Mn1.5O4 by spray drying presents the porous-tubular structure, the particle size is about 80 nm, and the cycling performance need to be improved. While the precursor is calcined at 900 ℃ to obtain the spinel LiNi0.5Mn1.5O4 with uniform particle distribution, of which the particle size is between 1 and 2 m by spray drying. The coulombic efficiency of pure LiNi0.5Mn1.5O4 at 0.1C prepared by spray drying and electrospinning are 48.1% and 50.3%, respectively. While the coulombic efficiency of carbon-coated LiNi0.5Mn1.5O4 prepared by spray drying is 53.4% and the capacity retention is still up to 93.3% even after 200 cycles at 1 C-rate, attributed to that the carbon coating layer decreased electrochemical transfer impedance (Rct) and inhibited the side reaction between material and electrolyte.

Abstract:Magnetic manganese ferrite nanoparticles were prepared by thermal decomposition. The influence of reaction temperature, reaction time and feeding ratio of oleic acid to oleates on the structure and the property of magnetic nanoparticles were investigated. As reaction temperature and time increasing, the crystal structure of the obtained nanoparticles changed from α-Fe2O3 to manganese ferrite with spinel structure, and then to solid solution of manganese oxide and iron oxide, which resulted in the following increase and decrease of magnetic property. The morphology of the nanoparticles transformed with an intra-particle ripening mechanism. As prolonging reaction time, the shape of the nanoparticles changed from spindle to irregular shape, and then to sphere. When the molar feeding ratio of oleic acid to oleates was 0.8, after thermal decomposition at 300 ℃ for 1 h, the saturation magnetic intensity of the obtained nanoparticles reached to 15.14emu/g.

Abstract:In this work, aramid nanofibers were prepared under mild conditions and aramid nanofibers reinforced poly (vinyl alcohol) (ANFs/PVA) composite films in different ratios were fabricated. The microstructure, thermal, optical and mechanical behaviors of composite films were characterized by fourier infrared spectroscopy (FTIR), differential scanning calorimetry (DSC), atomic force microscope (AFM), scanning electron microscope (SEM), electronic universal testing machine and optical transmittance/fog tester. The FTIR tests revealed hydrogen bonding interactions were presented between aramid nanofibers and PVA in the composite films, which will enhance the dispersion of aramid nanofibers in PVA matrix. Aramid nanofibers with diameters of 20-30 nm can be clearly observed by AFM and SEM, and their composite films with relatively flat surface were observed from SEM. According to the mechanical test and DSC characterization, when the mass fraction of aramid nanofibers was about 6.0%, both the mechanical and thermal performance of the composite films achieved the best.dispersion of aramid nanofibers in PVA matrix. Aramid nanofibers with diameters of 20-30 nm can be clearly observed by AFM and SEM, and their composite films with relatively flat surface were observed from SEM. According to the mechanical test and DSC characterization, when the mass fraction of aramid nanofibers was about 6.0 wt%, both the mechanical and thermal performance of the composite films achieved the best.

Abstract:In order to solve problems such as skin irritation to human body and high toxicity to aquatic organisms during the process of using, the lambda-cyhalothrin microcapsules were prepared by solvent evaporation method using ethyl cellulose as wall material and dichloromethane as solvent, and the physical and chemical properties and slow-release characteristics of the microcapsules were characterized. L9 (34) orthogonal experiment was designed, comprehensive score composed of average particle size and unencapsulation rate was adopted, to establish the optimum preparation conditions. They were as follows: 25% methylene chloride, 0.75% ethyl cellulose, 2% emulsifier, and shear for 8 min. The microcapsules had uniform particle size and smooth surface through observation by scanning electron microscopy; The infrared spectrogram showed that the lambda-cyhalothrin were encapsulated by ethyl cellulose; Release characteristic curve showed that microcapsule had good slow release performance. The process has the advantages of simple operation, short preparation period and excellent encapsulation, it can provide one effective way for the preparation of pesticide microcapsules.

Abstract:In this paper, Cesium Tungsten Bronze (CsxWO3) powders were synthesized by sol-gel method. The CsxWO3 powders were systematically studied for the impacts of the dispersant, the calcination temperature and the ratios of n(Cs) to n(W) on the crystalline phase, micromorphology, the average size, and the optical performance. The CsxWO3 powders were characterized by thermal gravimetric analyzer (TGA), X-ray diffraction (XRD), scanning electron microscope (SEM), and UV/VIS/NIR spectrophotometer. Powders of Cs0.3WO3 could be obtained with higher crystallinity, well dispersion, and improved near infrared shielding properties under the following preparation conditions: PEG-600 as dispersant, calcination temperature of 600℃, and n(Cs): n(W) = 0.33:1. The visible light transmittance of the CsxWO3 coating is more than 80% and the near infrared shielding rate is about 70%.

Abstract:Tea seed saponin is a kind of natural nonionic surfactants with strong properties such as foaming, decontamination, emulsification, solubilization and wetting. Tea seed saponin was extract from tea seed cake by Microwave-assisted alkaline ethanol solution. On the basis of single factor test, the extraction process was optimized by response surface method. The mathematical model between pH value, ethanol concentration and microwave power was established to determine the optimum technological conditions for extraction of tea seed saponin. The results showed that the optimum conditions for tea seed saponin extraction were as follows: ethanol concentration, 73.35%, extraction temperature, 60℃, extraction time, 8min, pH, 9.07, microwave power, 613W, and liquid to solid ratio of 9:1(V/m). Under these conditions, the extraction yield of tea seed saponin was (21.83?0.05)% (n=3) and the purity was 74.1%, which better performance than the conventional water extraction method and ethanol extraction method.

Abstract:Nb2O5 nanowires and mesoporous Nb2O5 were used as the catalyst supports to prepare Pd/W-Nb2O5 and Pd/S-Nb2O5 which used in hydrogenation reaction of Cinnamicaldehyde(CMA) to hydrocinnamaldehyde(HCMA), the conversion and selectivity is investigated. Reaction was carried out using ethanol solvent, catalyst 0.1 g, 80 oC, 2 MPa H2 pressure, 6 h reaction time, Pd/W-Nb2O5 have a conversion about 99%, Selective of HCMA is about 65%. Under the same reaction conditions, Pd/S-Nb2O5 has a conversion about 98%, the selective is about 84%. Too more acidity sites on W-Nb2O5 surface cause more side reactions and low selective of HCMA. Reaction temperature, H2 pressure, thermal treatment temperature of the supports can influence the reaction conversion and selective. Increasing the temperature or H2 pressure can enhance the reaction conversion. But high thermal treatment temperature make the Pd/S-Nb2O5 lose the catalyst activity on account of higher crystallinity of Nb2O5 and lower acidity on the surface.

Abstract:Oxidation reaction of trans-anethole with oxygen was investigated at low temperature. The oxidation characteristic and pressure of trans-anethole were determined using a self-designed mini closed pressure vessel device. Peroxide concentration was measured by iodimetry, and constituents of oxidation products was detected by gas chromatography-mass spectrometry (GC-MS). Results showed that trans-anethole oxidation occurred in three stages: first, oxygen was absorbed slowly, then trans-anethole oxidation reaction became rapid, finally, oxidation process went to end. Trans-anethole absorbed oxygen，followed by the generation of anethole peroxide. Peroxide concentration was influenced by reaction condition, and peroxide concentration reached the maximum (85.07 mmol/kg) at 95℃ 4h. The oxidation products were complex, including anisaldehyde, acetaldehyde, anethole epoxide, anethole diol and P-anisil, and the selectivity of anisaldehyde is 70.36% at 55℃.

Abstract:Surface modified Zn-Mg-Al hydrotalcite was prepared by coprecipitation. And its performance, as a PVC thermal stabilizer, was evaluated by torque rheometer and static thermal aging method. Effect of Surface modifier on the thermal stability of Zn-Mg-Al hydrotalcite was specially investigated in this paper. The results showed that Zn-Mg-Al hydrotalcite, modified by polyethylene glycol, performed the best property for the inhabitation of PVC initial coloration and long-term thermal stability. In addition, effect of Zn/Mg molar ratio on the thermal stability of Zn-Mg-Al hydrotalcite was also investigated. Polyethylene glycol modified Zn-Mg-Al hydrotalcite performed relatively better thermal stability when Zn/Mg is 1:3 or 1: 7. Compared with traditional Mg-Al hydrotalcite, modified Zn-Mg-Al hydrotalcite showed better property for the inhabitation of PVC initial coloration.

Abstract:P(VP-co-BA-co-CA) polymer surfactant was obtained from N-vinyl-2-pyrrolidone(VP),butyl acrylate (BA),carboxyethyl-2-methacrylate(CA) by solution polymerization.And the water-dispersible 1, 6-diisocyanate (HDI) trimer(abbreviated as WD-HDIT) was prepared from 1,6-diisocyanate(HDI) trimer and P(VP-co-BA-co-CA), which used as an emulsifier. The surface sizing properties of WD-HDIT emulsion were discussed and the synthetic condition were also optimized. The results showed that the emulsion presents excellent stability and outstanding sizing properties when w(VP) was 5.0%,w(BA) was 3.4%,w(CA) was1.3%，w(HDI) was 60.0%.Paper sizing value could reach 29 s,the water contact angle was 119.49°, the folding endurance could approach 67 times, the paper tensile strength was 55.8N·m/g, the bending stiffness was 2.003 N•m7/kg3, the ring crush strength was 5.1468N•m/g when the dosage of the sizing agent was 10%.

Abstract:ZnO/Al2O3 catalyst was prepared by an impregnation method and applied in the deacidification of 4th vacuum gas oil through the esterification with glycol. The catalyst phases were identified by XRD and it indicated that less calcining time was more benefit for the active component ZnO. The surface acid amount of the catalysts was analyzed by NH3-TPD, the catalyst calcined in 1.0 h had more surface acid amount which reached up to 0.415 mmol/g. The effects of the catalyst calcining time、catalyst dosage，glycol dosage，reaction temperature and reaction time on the deacidification were investigated. The vacuum gas oils before and after the deacidification were characterized by means of FTIR. The results showed that the ZnO/Al2O3 which was incandesced 1hour exhibited excellent catalytic activity for the esterification. Under the selected reaction conditions of vacuum gas oil dosage 40 g，the catalyst dosage 2.5% (w)(based on the vacuum gas oil，the same below), glycol dosage 4.0% (w)，reaction temperature 250 ℃ and reaction time 1.0 h，the acid removal rate reached 92.43%.The catalyst used five times and the deacidification rate reached to 92% which appeared good catalytic activity and stability. The FTIR results showed that naphthenic acids in the vacuum gas oil reacted with glycol into corresponding esters，which was also proved by 13C NMR，so the acids were mostly eliminated. Comparison of the part physicochemical indexes before and after the deacidification indicated that，the acids in the vacuum gas oil was greatly decreased after the catalytic esterification which drop from 2.51 to 0.19 KOH/g, and the other main physicochemical properties after the deacidification varied a little.

Abstract:With octadecylamine, epoxy chloropropane, N - hydroxyethyl morpholine as raw material, Synthesis of bis (1-chloro-N-hydroxyethyl morpholinium-2-hydroxypropyl) n-octadecylamine quaternary ammonium salt by ring opening reaction and quaternization of epichlorohydrin. The structures were characterized by FTIR, 1H NMR and 13C NMR, and the corrosion inhibition of A3 steel was analyzed by static weight loss method, environmental scanning electron microscope, X-ray photoelectron spectroscopy and contact angle tester. The results showed that the target product was synthesized by IR and NMR.；The results showed that the corrosion rate of morpholine double quaternary ammonium salt inhibitor was better when the temperature was 45 ℃ and the mass concentration was 0.4 g / L. XPS results show that the morphine double quaternary ammonium salt molecules form a thin film on the surface of the steel sheet. The contact angle of the film increases with the increase of the concentration of the corrosion inhibitor, and the spreading degree on the surface of the steel sheet decreases and the density is better.

Abstract:Perillartine (Ⅱ) was prepared by condensation reaction using perillaldehyde (Ⅰ) as starting material. Then, twenty-one perillaldehyde-based oxime esters (Ⅲa ～ u) were synthesized in 70% ~ 90% yields by O-acylation reaction of perillartine with a series of acyl chlorides. All the target compounds were characterized by FTIR, 1HNMR, 13CNMR, and ESI-MS. The herbicidal and antifungal activities were also evaluated in this study. The results showed that, at 100 mg/L, the target compounds perillaldehyde-based methyl oxime ester (Ⅲa) and perillaldehyde-based ethyl oxime ester (Ⅲb) had inhibition rates of 97.0% and 91.0% against seedling-growth of barnyard grass (Echinochloa crusgalli L.), respectively, displaying comparable herbicidal activity with the commercial herbicide flumioxazin with the inhibition rate of 97.5%. Perillaldehyde-based p-chlorophenyl oxime ester (Ⅲm) and perillaldehyde-based ethyl oxime ester (Ⅲb) had inhibition rates of 88.4% and 79.6% against the root of rape (Brassica campestris), exhibiting better herbicidal activity than the commercial herbicide flumioxazin with the inhibition rate of 63.0%. Besides, at 50 mg/L, the target compounds Ⅲa ～ u showed certain antifungal activities against Physalospora piricola, Fusarium oxysporum f. sp. Cucumerinum, Cercospora arachidicola, Fusarium graminearum and Alternaria solani, in which perillaldehyde-based ethyl oxime ester (Ⅲb) presented the best antifungal activity with the inhibition rates of 85.0% and 79.2% against C. arachidicola and P. piricola, respectively.

Abstract:A series of quinoline derivatives were firstly synthesized in deep eutectic solvent (DES, choline chloride/oxalic acid) by the Friedländer condensation reaction between 2-aminoaryl ketone and α-methylene ketone, and moderate to good yields of 62-94％ were obtained after reaction for 1 h in 80 oC oil bath. The DES could be recycled 3 times without obvious loss of its activity.

Abstract:Under the condition of solid-liquid phase transfer catalysis, N-benzoyl- N’- benzothiazole thiourea (compounds 1) was synthetised using benzoyl chloride, ammonium thiocyanate and 2-aminobenzothiazole in the presence of PEG-400 as catalyst and methylene dichloride as solvent. Its structures were characterized by elementary, 1HNMR, IR. The interactions between compound 1 and anions(F-, AcO-, Cl-, Br-, I- and H2PO4- ) were studied by UV-Vis absorption and 1H NMR spectroscopy in DMSO. The results showed a high selectivity for F- and AcO-, however, no obvious interaction was found for Cl- 、Br-、I- and H2PO4-. The mole ratio method indicates that the compound 1 with F- through hydrogen bonds formed stable 1:1 complexes. 2:1 complex is formed between the compound 1 and AcO- anion through hydrogen bonding interactions.