Introduction stéréosélective du groupement difluorométhylène en position allylique
作者:Frédérique Tellier、Raymond Sauvêtre
DOI:10.1016/0022-1139(94)03126-k
日期:1995.2
The regio- and stereo-selective introduction of a difluoromethylene group in an allylic position is described. The key step is the treatment of 1,1-difluoro-1-alken-3-acetates with Grignard reagents in the presence of copper and lithium salts.
Stereoselective syntheses of 3,3-difluoro-1-propene derivatives
作者:Frédérique Tellier、Raymond Sauvêtre
DOI:10.1016/s0040-4039(00)60400-8
日期:1993.11
A highly regio- and stereo-selective introduction of a difluoromethylene group in allylic position is described. The key step is the treatment of 3-acetoxy-1,1-difluoro-1-propenes with Grignard reagents in the presence of copper and lithium salts.
MASNYK, MAREK;FRIED, JOSEF;ROELOFS, WENDELL, TETRAHEDRON LETT., 30,(1989) N5, C. 3243-3246