Pd-Catalyzed Difluoromethylation of Vinyl Bromides, Triflates, Tosylates, and Nonaflates
作者:Dalu Chang、Yang Gu、Qilong Shen
DOI:10.1002/chem.201500551
日期:2015.4.13
Pd‐catalyzed difluoromethylation of di‐, tri‐ or tetra‐substituted vinyl bromides, triflates, tosylates and nonaflates under mild conditions is described. The reaction tolerates a wide range of functional groups, such as bromide, chloride, fluoride, ester, amine, nitrile, and protected carbonyl, thus providing a general route for the preparation of difluoromethylated alkenes.
描述了在温和条件下二,三或四取代乙烯基溴,三氟甲磺酸酯,甲苯磺酸酯和壬二酸酯的钯催化二氟甲基化。该反应可耐受各种官能团,例如溴化物,氯化物,氟化物,酯,胺,腈和受保护的羰基,因此提供了制备二氟甲基化烯烃的一般途径。