Utilization of fluoroform for difluoromethylation in continuous flow: a concise synthesis of α-difluoromethyl-amino acids
作者:Manuel Köckinger、Tanja Ciaglia、Michael Bersier、Paul Hanselmann、Bernhard Gutmann、C. Oliver Kappe
DOI:10.1039/c7gc02913f
日期:——
be considered as an ideal reagent for difluoromethylation reactions. However, due to the low reactivity of fluoroform, only very few applications have been reported so far. Herein we report a continuous flow difluoromethylation protocol on sp3 carbons employing fluoroform as a reagent. The protocol is applicable for the direct Cα-difluoromethylation of protected α-amino acids, and enables a highly atom