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高等学校化学研究 ›› 2016, Vol. 32 ›› Issue (2): 212-218.doi: 10.1007/s40242-016-5301-9

• Articles • 上一篇    下一篇

Benzoic Acid: an Efficient and Rapid Catalyst for the Synthesis of α-Hydroxyl(indolyl)ethanones from Indoles

LÜ Guanghui, CHENG Xu, ZHENG Yang, LI Weijian, HAI Li, WU Yong   

  1. Key Laboratory of Drug-targeting, Ministry of Education, Department of Medicinal Chemistry, West China School of Pharmacy, Sichuan University, Chengdu 610041, P. R. China
  • 收稿日期:2015-07-23 修回日期:2015-10-22 出版日期:2016-04-01 发布日期:2015-12-14
  • 通讯作者: HAI Li, WU Yong E-mail:smile@scu.edu.cn;wyong@scu.edu.cn
  • 基金资助:

    Supported by the National Natural Science Foundation of China(No.81373259).

Benzoic Acid: an Efficient and Rapid Catalyst for the Synthesis of α-Hydroxyl(indolyl)ethanones from Indoles

LÜ Guanghui, CHENG Xu, ZHENG Yang, LI Weijian, HAI Li, WU Yong   

  1. Key Laboratory of Drug-targeting, Ministry of Education, Department of Medicinal Chemistry, West China School of Pharmacy, Sichuan University, Chengdu 610041, P. R. China
  • Received:2015-07-23 Revised:2015-10-22 Online:2016-04-01 Published:2015-12-14
  • Contact: HAI Li, WU Yong E-mail:smile@scu.edu.cn;wyong@scu.edu.cn
  • Supported by:

    Supported by the National Natural Science Foundation of China(No.81373259).

摘要:

An efficient method for regioselective Friedel-Crafts alkylations of indole using arylglyoxals in the presence of benzoic acid has been discovered. The reactions proceeded smoothly at room temperature under metalfree conditions and generated the corresponding products in good to excellent yields. This methodology has a broad substrate scope and opens up an interesting and attractive avenue for the synthesis of α-hydroxyl(indolyl)-ethanones.

关键词: Friedel-Crafts alkylation, Indole, Arylglyoxal, Benzoic acid

Abstract:

An efficient method for regioselective Friedel-Crafts alkylations of indole using arylglyoxals in the presence of benzoic acid has been discovered. The reactions proceeded smoothly at room temperature under metalfree conditions and generated the corresponding products in good to excellent yields. This methodology has a broad substrate scope and opens up an interesting and attractive avenue for the synthesis of α-hydroxyl(indolyl)-ethanones.

Key words: Friedel-Crafts alkylation, Indole, Arylglyoxal, Benzoic acid