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
One-Pot, Atom and Step Economy (PASE) Assembly of Trifluoromethylated Pyrimidines from CF<sub>3</sub>
-Ynones
作者:Alexey R. Romanov、Alexander Yu. Rulev、Igor A. Ushakov、Vasiliy M. Muzalevskiy、Valentine G. Nenajdenko
DOI:10.1002/ejoc.201700727
日期:2017.8.2
Highly efficientsynthesis of 6-trifluoromethylated pyrimidines based on reaction of CF3-ynones with nitrogen 1,3-binucleophiles was developed. One-pot assembly of pyrimidine core proceeds by the cascade route via aza-Michael addition - intramolecular cyclization - dehydration sequence giving the target heterocycles in excellent yields (up to 97%). When acetamidine was used as a binucleophile, the