作者:Yi Wang、Donald J. Burton
DOI:10.1021/jo060362a
日期:2006.5.1
Reaction of (2E)-2,3-difluoro-3-iodoacrylic acid with a variety of terminal acetylenes under cocatalysis of PdCl2(PPh3)(2) and CuI gave difluorinated 2-pyrones as the sole product in good yields.