Reaction of Bromoenones with Amidines: A Simple Catalyst-Free Approach to Trifluoromethylated Pyrimidines
作者:Alexander Yu. Rulev、Alexey R. Romanov、Alexander V. Popov、Evgeniy V. Kondrashov、Sergey V. Zinchenko
DOI:10.1055/s-0040-1707969
日期:2020.5
one-pot synthesis of trifluoromethylated pyrimidines has been achieved by the treatment of fluorinated 2-bromoenones with aryl- and alkylamidines. The assembly of pyrimidine core proceeds by the cascade reactions via aza-Michael addition–intramolecular cyclization–dehydrohalogenation/dehydration sequence. This strategy is featured by high selectivity and mild reaction conditions giving the target heterocycles