|本期目录/Table of Contents|

[1]李 灿,张方方,周毅博,等.依非韦伦中间体的不对称合成[J].武汉工程大学学报,2020,42(05):496-500.[doi:10.19843/j.cnki.CN42-1779/TQ. 202004006]
 LI Can,ZHANG Fangfang,ZHOU Yibo,et al.Asymmetric Synthesis of Efavirenz Intermediates[J].Journal of Wuhan Institute of Technology,2020,42(05):496-500.[doi:10.19843/j.cnki.CN42-1779/TQ. 202004006]
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《武汉工程大学学报》[ISSN:1674-2869/CN:42-1779/TQ]

卷:
42
期数:
2020年05期
页码:
496-500
栏目:
化学与化学工程
出版日期:
2021-01-29

文章信息/Info

Title:
Asymmetric Synthesis of Efavirenz Intermediates
文章编号:
1674 - 2869(2020)05 - 0496 - 05
作者:
李 灿张方方周毅博王 波祝 航吴广文*
新型反应器与绿色化学工艺湖北省重点实验室(武汉工程大学),湖北 武汉 430205
Author(s):
LI Can ZHANG Fangfang ZHOU Yibo WANG Bo ZHU Hang WU Guangwen*
Hubei Key Laboratory of Novel Chemical Reactor & Green Chemical Technology( Wuhan Institute of Technology), Wuhan 430205, China
关键词:
依非韦伦中间体不对称合成工艺优化
Keywords:
efavirenz intermediates asymmetric synthesis process optimization
分类号:
R978.8
DOI:
10.19843/j.cnki.CN42-1779/TQ. 202004006
文献标志码:
A
摘要:
为了优化依非韦伦手性中间体(S)-1-(2-氨基-5-氯苯基)-1-三氟甲基-3-环丙基-2-丙炔-1-醇的不对称合成工艺。以对氯苯胺为起始原料,经过氨基保护、酰化反应、氨基脱保护、碱化、不对称加成得到目标化合物。所得化合物结构均经核磁共振氢谱和碳谱确证。得到不对称加成反应最佳工艺条件:2-甲基四氢呋喃/甲苯为溶剂,4-氯-2-(三氟乙酰基)苯胺的浓度为0.45 mol/L,4-氯-2-(三氟乙酰基)苯胺、(1R, 2S)-1-苯基-2-(吡咯烷基)-1-丙醇与ZnCl2的摩尔比为1.0∶1.2∶1.3,总收率达79.8%(以对氯苯胺计),对映体过量98.2%。优化后的工艺条件具有成本低、收率高,适合工业生产的特点。
Abstract:
To improve the asymmetric synthesis process of chiral intermediate(S)-1-(2-amino- 5-chlorophenyl)-1-trifluoromethyl-3-cyclopropyl-2-propyne-1-ol of efavirenz,we prepared the target compound via amino protection, acylation reaction, deprotection, alkalinization and asymmetric addition reaction with p-chloroaniline as the raw material. The chemical structure of compounds was confirmed by 1H and 13C nuclear magnetic resonance spectroscopy. The optimum process conditions of asymmetric addition reactions were determined using 2-MeTHF/toluene as solvent, at 0.45 mol/L of 4-chloro-2-(trifluoro acetyl), mole ratio of 4-chloro-2-(trifluoro acetyl) aniline/(1R, 2S)-1-phenyl-2-(pyrrolidinyl)-1-propanol/Zinc chloride of 1.0∶1.2∶1.3. Under above conditions, the total yield reaches 79.8% (calculated by p-chloroaniline) and the enantiomeric excess is 98.2%. The improved process has the characteristics of lower cost, higher yield, which is suitable for industrial production.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2019-09-20基金项目:国家自然科学基金(51773159)作者简介:李 灿,硕士研究生。 E-mail:861659963@qq.com*通讯作者:吴广文,博士,教授,硕士研究生导师。E-mail:2584973907@qq.com引文格式:李灿,张方方,周毅博,等. 依非韦伦中间体的不对称合成[J]. 武汉工程大学学报,2020,42(5):496-500.
更新日期/Last Update: 2020-11-02