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
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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
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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
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BAI Bing , XU Fanglin , ZHANG Gaihong , WANG Qingfu ,
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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
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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。