C-Alkynylation of Chromones by Sonogashira Reaction
作者:Tamás Patonay、István Pazurik、Anita Ábrahám
DOI:10.1071/ch13006
日期:——
Sonogashira reaction of bromochromones and -flavones with a bromine atom on their benzene or heterocyclic ring with various terminal alkynes gave the desired products with nearly the same efficiency as the previously used iodine derivatives. The coupling reactions were performed in the presence of [tetrakis(triphenylphosphine)palladium(0)], copper(i) co-catalyst, and triethylamine, resulting in the