An Efficient Synthesis of 2,6-Disubstituted 2,3-Dihydro-4H-pyran-4-ones via Sonogashira Coupling of p-Toluenethiol Esters
作者:Haruhiko Fuwa、Seiji Matsukida、Makoto Sasaki
DOI:10.1055/s-0029-1219794
日期:2010.5
An efficient strategy for the synthesis of 2,6-disubstituted 2,3-dihydro-4H-pyran-4-ones has been developed, which relied on Sonogashiracoupling of alkynes and p-toluenethiol esters and AgOTf-promoted 6-endo-dig cyclization of the derived β-hydroxy ynones.