Synthesis of heteroaryl ketones via tandem reaction of 1,1-dibromoethenes
摘要:
A novel method for the synthesis of heteroaryl ketones through one-pot tandem reaction of 1,1-dibromoethenes with 2-amino(thio)phenols promoted by TBAF center dot 3H(2)O and RuCl3(5%)/air was developed. This novel method includes several reactions in one-pot and utilizes economical yet efficient reagents to generate synthetically and biologically interesting heteroaryl ketones under mild conditions with good efficiency. (C) 2011 Elsevier Ltd. All rights reserved.
A Sustainable Synthesis of 2-Benzoxazyl and 2-Benzothiazyl Ketones from Alkynyl Bromides and 2-Amino(thio)phenols Promoted by a Recyclable Catalytic System
作者:Liangyan Cui、Yan He、Xuesen Fan
DOI:10.1002/cjoc.201100472
日期:2012.4
An environmentally and economically sustainablesynthesis of 2‐benzoxazyl ketones and 2‐benzothiazyl ketones through FeCl3·6H2O catalyzed tandem reactions of alkynylbromides with 2‐amino(thio)phenols in [bmim]BF4 has been developed. Remarkable advantages of this new synthetic strategy include high efficiency, readily available starting materials, and recyclable catalyst and reaction medium.