Page 229 - 《精细化工》2021年第6期
P. 229

第 38 卷第 6 期                             精   细   化   工                                  Vol.38, No.6
             202 1 年 6 月                             FINE CHEMICALS                                 June  2021


              精细化工中间体
                        1-甲基葡萄糖的合成及其热裂解产物分析



                                1
                                             1
                                                                      2
                                                         1
                                                                                   2*
                                                                                                 1*
                       白   冰 ,徐芳琳 ,张改红 ,王清福 ,陈芝飞 ,毛多斌
                 (1.  郑州轻工业大学  食品与生物工程学院,河南  郑州   450000;2.  河南中烟工业有限责任公司  技术中
                 心,河南   郑州  450000)
                 摘要:以葡萄糖酸 δ-内酯为原料,合成了 2,3,4,6-四-O-三甲基硅烷基-葡萄糖酸内酯(Ⅰ),然后利用 CH 3 Li 加
                 成,得到 2,3,4,6-四-O-三甲基硅烷基-1-甲基-葡萄糖(Ⅱ),将其溶于乙腈与水(体积比 4∶1)的溶液中,加入
                                                                                                13
                  +
                                                                                         1
                 H 阳离子交换树脂脱去三甲基硅烷(TMS)保护,得到 1-甲基葡萄糖(Ⅲ)。目标产物结构经 HNMR、 CNMR、
                 HRMS 确证,同时对其热裂解产物进行了分析。结果表明,以该方法合成的化合物为 1-甲基-α-D-葡萄糖,在
                 优化的条件下,3 步反应总产率达到 86%;1-甲基葡萄糖在甲醇中经酸催化易转化为相应的糖苷;1-甲基葡萄糖
                 热裂解后可释放出具有焦甜香气的物质 2-乙酰基呋喃、5-甲基-2-乙酰基呋喃、5-羟甲基-2-乙酰基呋喃等,可用
                 于食品、烟草等行业。
                 关键词:1-甲基葡萄糖;合成;热裂解;2-乙酰基呋喃; 5-甲基-2-乙酰基呋喃;精细化工中间体
                 中图分类号:O629.13;TS264.3      文献标识码:A      文章编号:1003-5214 (2021) 06-1291-06



                   Preparation of 1-methyl-glucose and analysis of its pyrolysis products


                                                      1
                                                                        1
                                                                                       2
                                          1
                                 BAI Bing , XU Fanglin , ZHANG Gaihong , WANG Qingfu ,
                                                           2*
                                                                          1*
                                               CHEN Zhifei , MAO Duobin
                 (1. College  of  Food  &  Bioengineering, Zhengzhou University  of Light Industry, Zhengzhou 450000, Henan, China;
                 2. Technology Center, China Tobacco Henan Industrial Co., Ltd., Zhengzhou 450000, Henan, China)
                 Abstract: 2,3,4,6-Tetrakis-O-trimethylsilyl-gluconolactone (Ⅰ) was obtained from glucono-δ-lactone.
                 Subsequently, the addition reaction between compound  Ⅰ and  CH 3 Li led to 2,3,4,6-tetrakis-O-
                 trimethylsilyl-1-methyl-glucose (Ⅱ). Finally, 1-methyl-glucose (Ⅲ) was obtained by hydrolysis of
                 compound  Ⅱ  using acid cation exchange resin in  mixed solution of acetonitrile and water with a
                                                                                 13
                                                                         1
                 volume ratio  of 4∶1. The  target compound was confirmed by  HNMR,  CNMR and HRMS. The
                 thermal pyrolysis products of 1-methyl-glucose were also analyzed using on-line pyrolysis-gas
                 chromatography-mass spectrometry (Py-GC-MS). The results  indicated  that the compound  Ⅲ
                 synthesized by this method was 1-methyl-α-D-glucose. Under these optimal conditions, the total yield
                 of the compound  Ⅲ  in three steps was 86%. 1-Methyl-glucose could be transformed to corresponding
                 glucoside easily in methanol catalyzed by acid. The synthesized 1-methyl-glucose after pyrolysis could
                 release 2-acetylfuran, 5-methyl-2-acetylfuran, 5-hydroxymethyl-2-acetylfuran and other aromatic
                 components, which could be used in food, tobacco and other industries.
                 Key words: 1-methyl-glucose;  synthesis;  pyrolysis; 2-acetylfuran; 5-methyl-2-acetylfuran; fine chemical
                 intermediates


                 糖类不仅作为甜味剂和能量物质被大量消费,                          者通过加热 过程中自身 裂解              [8] 、糖 苷  [9-10]  以及
            同时也是食品、烟草中一些香味成分的重要前体物。                            Amadori 化合物    [11] 的裂解生成呋喃、吡喃类化合
            如葡萄糖可通过焦糖化反应              [1-3] 和美拉德反应   [4-7] 或   物,是烟草以及一些加工食品焦甜、烤甜香韵的主

                 收稿日期:2020-12-19;  定用日期:2021-02-07; DOI: 10.13550/j.jxhg.20201194
                 基金项目:河南省科技攻关项目(192102110212)
                 作者简介:白   冰(1982—),男,讲师,E-mail: baibing82@163.com。联系人:陈芝飞(1979—),研究员,E-mail: chenzhifei@126.com;
                 毛多斌(1962—),男,教授,E-mail: maoduobin@sohu.com。
   224   225   226   227   228   229   230   231   232   233   234