Page 218 - 精细化工2020年第2期
P. 218
第 37 卷第 2 期 精 细 化 工 Vol.37, No.2
202 0 年 2 月 FINE CHEMICALS Feb. 2020
精细化工中间体
基于烯胺酮中间体“一锅两步”法
合成 β-羰基砜衍生物
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唐裕才 1,3,4 ,陈 飘 ,冉书童 ,王 萍 ,李玲芳
(1. 洞庭湖生态经济区建设与发展湖南省协同创新中心 湖南文理学院 化学与材料工程学院,湖南 常德
415000;2. 湖南文理学院 机械工程学院,湖南 常德 415000; 3. 电镀废水回用技术湖南省工程研究中
心, 湖南 常德 415000; 4.水处理功能材料湖南省重点实验室, 湖南 常德 415000)
摘要:以苯乙酮为起始原料, 采用“一锅两步”法制备了 β-羰基砜衍生物。首先,在 100 ℃下将苯乙酮衍生物
与 N,N-二甲基甲酰胺二甲基缩醛(DMF-DMA)反应生成活泼的烯胺酮中间体;随后,在 80 ℃下加入甲苯为
溶剂、以六水三氯化铁/叔丁基过氧化氢为催化氧化体系、磺酰肼为磺酰基来源,经历自由基加成、氧化、亲核
取代反应,最终脱去 N,N-二甲基甲酰胺得到终产物,以 30%~64%的收率合成了 18 种具有不同取代基的 β-羰基
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砜衍生物,采用 HNMR、 CNMR 对终产物进行了结构鉴定。结果表明:该法具有良好的底物普适性,多种取
代基团,如甲基、甲氧基、卤素、噻吩、呋喃和萘等都能顺利地发生转化得到相应的 β-羰基砜衍生物。
关键词:β-羰基砜;烯胺酮;三氯化铁/叔丁基过氧化氢;自由基加成;精细化工中间体
中图分类号:O623.83 文献标识码:A 文章编号:1003-5214 (2020) 02-0420-06
One-pot two-steps synthesis of β-keto-sulfones
based on enaminone intermediate
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Tang Yucai 1,3,4 , Chen Piao , Ran Shutong , Wang Ping , Li Lingfang
(1. Hunan Province Cooperative Innovation Center for the Construction & Development of Dongting Lake Ecologic
Economic Zone, College of Chemistry and Materials Engineering, Hunan University of Arts and Science, Changde
415000, Hunan, China; 2. College of Mechanical Engineering, Hunan University of Arts and Science, Changde 415000,
Hunan, China; 3. Hunan Province Engineering Research Center of Electroplating Wastewater Reuse Technology, Changde
415000, Hunan, China; 4. Hunan Provincial Key Laboratory of Water Treatment Functional Materials, Changde 415000,
Hunan, China)
Abstract: Different β-keto-sulfone derivatives were obtained via a “one-pot, two-steps” method with
acetophenone as starting material. Firstly, acetophenone derivatives reacted with N, N-dimethyl formamide
dimethyl acetal (DMF-DMA) to form active enaminone intermediate at 100 ℃. Subsequently, the
intermediate underwent radical addition, oxidation, nucleophilic substitution at 80 ℃ using toluene as
solvent and sulfonyl hydrazine as sulfonyl source in the presence of a catalytic amount of ferric chloride
hexahydrate/tert-butyl hydrogen peroxide. Finally, the final product was obtained by removing
N,N-dimethyl formamide, eighteen kinds of β-keto-sulfone derivatives were obtained in 30%~64% yields.
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Their structures were determined by HNMR and CNMR. The results show that this method has a good
universality of substrates, and various substituents, such as methyl, methoxy, halogen, thiophene, furan and
naphthalene can be successfully converted to corresponding β-keto-sulfone derivatives.
Key words: β-keto-sulfone derivatives; enaminone; ferric chloride hexahydrate/tert-butyl hydrogen
peroxide; radical addition; fine chemical intermediates
含有砜基官能团的化合物大都具有广谱生物活 性,在杀虫、杀菌、除草及抗肿瘤等方面具有十分
收稿日期:2019-06-26; 定用日期:2019-09-03; DOI: 10.13550/j.jxhg.20190597
基金项目:国家自然科学基金(51802096);湖南文理学院博士科研启动基金(17BSQD32);大学生创新创业研究项目(ZC1816)
作者简介:唐裕才(1987—),男,讲师,E-mail:yctang1009@163.com。联系人:李玲芳(1981—),女,讲师,E-mail:yourvicky@126.com。