Catalyst free, three-component approach for unsymmetrical triarylmethanes (TRAMs)
摘要:
An efficient catalyst free, three-component, cascade approach has been designed and developed for the rapid assembly of unsymmetrical triarylmethane framework. The strategy employed aromatic aldehydes, Grignard reagents, and neutral aromatics as reaction partners, under simple thermal conditions. This process affords very broad scope for all three partners as it is performed in the absence of any external additives. (C) 2016 Elsevier Ltd. All rights reserved.
Direct α-Alkylation of Aldehydes by Brønsted-Acid Catalysis
作者:Xiangrong Zhu、Ting Wang、Qixiang Guo
DOI:10.1002/cjoc.201100464
日期:2012.1
A Brønstedacid catalyzed directalkylation reaction of aldehydes was described. The 3,5‐dinitrobenzoic acid promoted the reaction between aldehydes and diarylmethanols to afford the corresponding alkylation products with middle to high yields (up to 91% yield).