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。