Author/Authors :
Hua Cao، نويسنده , , Haiping Zhong، نويسنده , , Yuanguang Lin، نويسنده , , Liuqing Yang، نويسنده ,
Abstract :
An excellent catalyst DABCO has been found to catalyze C–C bond formation reaction between activated methylenes and alkynes. The transformation has provided a facile route for the synthesis of 2H-pyran-2-ones or unsaturated alkenoic acid ester derivatives and explored the new possibilities of N-catalysts for Michael addition of nucleophiles with alkynoates.