Quaternary Phosphonium Salts as Active Bronsted Acid Catalysts for Friedel-Crafts Reactions

被引：23
|
作者：
Chen, Lin [1 ,2 ]
Xiao, Ben-Xian [1 ,2 ]
Du, Wei [1 ,2 ]
Chen, Ying-Chun [1 ,2 ,3 ]
机构：
[1] Sichuan Univ, Minist Educ, Key Lab Drug Targeting & Drug Delivery Syst, Chengdu 610041, Sichuan, Peoples R China
[2] Sichuan Univ, West China Sch Pharm, Sichuan Res Ctr Drug Precis Ind Technol, Chengdu 610041, Sichuan, Peoples R China
[3] Third Mil Med Univ, Coll Pharm, Chongqing 400038, Peoples R China
来源：
ORGANIC LETTERS | 2019年 / 21卷 / 14期
关键词：
ISATIN-DERIVED KETIMINES; ACETONYLTRIPHENYLPHOSPHONIUM BROMIDE; ORGANIC-SYNTHESIS; DEPROTECTION; PROTECTION; ALCOHOLS; DESIGN; WITTIG;
D O I：
10.1021/acs.orglett.9b02108
中图分类号：
O62 [有机化学];
学科分类号：
070303 ; 081704 ;
摘要：
A readily available quaternary phosphonium salt containing a trifluoroacetonyl group and a tetrakis[3,5-bis(trifluoromethyl)phenyl]borate (BAr4F-) counterion was demonstrated to be a highly active Bronsted acid catalyst for Friedel Crafts-type reactions of an array of electron-rich heteroarenes and aniline derivatives with isatin-derived ketimines, even at 0.1 mol % catalyst loadings.
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页码：5733 / 5736
页数：4
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