Synthesis of activated alkenes bearing the difluoromethylenephosphonate group: a range of building blocks for the synthesis of secondary difluorophosphonates
Synthesis of activated alkenes bearing the difluoromethylenephosphonate group: a range of building blocks for the synthesis of secondary difluorophosphonates
Reactive dienophiles containing a difluoromethylenephosphonato group
作者:Kevin Blades、Thierry P. Lequeux、Jonathan M. Percy
DOI:10.1039/cc9960001457
日期:——
New dienophiles containing the difluoromethylenephosphonato group are synthesised from readily-available starting materials and cycloadditions with reactive dienes are executed successfully.
Facile syntheses of α,α-difluoro-β-ketophosphonates
作者:Thierry P. Lequeux、Jonathan M. Percy
DOI:10.1039/c39950002111
日期:——
The cerium-mediated reaction between lithio (diethyldifluoromethyl)-phosphonate 2 proceeds smoothly to afford good yields of ketophosphonates; the reaction with DMF led to the formation of the corresponding aldehyde which was isolated as a hydrate with interesting and useful properties.