Synthesis of Alkyl Aryl(heteroaryl)acetates from <i>N</i>-Oxides, 1,1-Difluorostyrenes, and Alcohols
作者:Rafał Loska、Katarzyna Szachowicz、Dorota Szydlik
DOI:10.1021/ol402735m
日期:2013.11.15
anes are formed from imidazole or thiazole N-oxide, 1,1-difluorostyrene, and an alcohol, amine, or water in a three-component reaction, which probably occurs via 1,3-dipolar cycloaddition. The whole process is a novel method for functionalization of a heterocyclic ring in a position originally occupied by hydrogen. Preliminary experiments show that it occurs for 6-membered N-oxides as well.
芳基(杂芳基)乙酸或芳基(杂芳基)甲烷的衍生物是由咪唑或噻唑N-氧化物,1,1-二氟苯乙烯和醇,胺或水以三组分反应形成的,很可能是通过1 ,3-偶极环加成。整个过程是一种用于在最初被氢占据的位置上杂环官能化的新颖方法。初步实验表明,它也在6元N-氧化物中发生。