高等学校化学学报 ›› 2022, Vol. 43 ›› Issue (2): 20210588.doi: 10.7503/cjcu20210588

• 有机化学 • 上一篇    下一篇

无催化剂下醇和酚的高效O-硅基化

于静, 吴超, 李晨阳, 陈丹凤, 丁柳月, 马献涛()   

  1. 信阳师范学院化学化工学院, 信阳 464000
  • 收稿日期:2021-08-16 出版日期:2022-02-10 发布日期:2021-10-08
  • 通讯作者: 马献涛 E-mail:xiantaoma@126.com
  • 基金资助:
    国家自然科学基金(22101243);信阳师范学院青年骨干教师项目(2018GGJS-05);信阳师范学院大学生科研基金(2020-DXS-096)

Catalyst-free and Highly Efficient O-Silylation of Alcohols and Phenols

YU Jing, WU Chao, LI Chenyang, CHEN Danfeng, DING Liuyue, MA Xiantao()   

  1. College of Chemistry and Chemical Engineering,Xinyang Normal University,Xinyang 464000,China
  • Received:2021-08-16 Online:2022-02-10 Published:2021-10-08
  • Contact: MA Xiantao E-mail:xiantaoma@126.com
  • Supported by:
    the National Natural Science Foundation of China(22101243);the Young Core Instructor Program of Xinyang Normal University, China(2018GGJS-05);the Research and Innovation Projects for College Students of Xinyang Normal University, China(2020-DXS-096)

摘要:

硅醚类化合物广泛应用于有机合成、 分离分析和精细化工等领域. 六甲基二氮硅烷是近年来发展的一种新型硅基化试剂, 被用于硅醚的高效合成, 但由于六甲基硅烷较为惰性, 通常需要加入催化剂活化. 本文报道了一种无催化剂下醇、 酚的高效硅基化新方法. 研究结果表明, 该方法可以兼容一级苄醇、 杂芳基苄醇、 脂肪醇, 二级醇甚至三级醇, 多数反应可以实现定量转化, 无需柱层析即可实现产物的分离纯化. 该方法可以拓展到酚的高效硅醚化, 也可以很方便地放大到100 mmol, 收率达到99%, 表明该方法具有较好的实用价值.

关键词: 醇, 酚, 硅醚, 无催化

Abstract:

Silyl ethers are widely used in many fields such as organic synthesis, separation analysis, fine chemicals, etc. Hexamethyldiazosilane(HMDS) was recently developed as a new silyl reagent for the efficient synthesis of silyl ethers. However, a catalyst was usually required to activate the inert HMDS. In this work, an efficient and catalyst-free O-Silylation of alcohols and phenols was developed. This new method could be successfully applied to a variety of primary benzyl alcohols, heteroaryl benzyl alcohols, aliphatic alcohols, secondary alcohols and even tertiary alcohols. In Most cases, the target product was obtained under column chromatography-free conditions with a quantitative isolated yield. This method can be extended to the highly efficient O-Silylation of phenols, and also be easily scaled up to 100 mmol, giving the target product in 99% isolated yield, indicating that this new method is of good practical value.

Key words: Alcohol, Phenol, Silyl ether, Catalyst-free

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