Short and stereoselective synthesis of δ-functionalized E-α,α-difluoroallylphosphonates
作者:Serge Halazy、Véronique Gross-Bergès
DOI:10.1039/c39920000743
日期:——
New functionalized E-α,α-difluoroallylphosphonates including purine derivatives have been prepared from α,β-unsaturated carbonyl compounds and diethylphosphinyldifluoromethyllithium.
Simple synthesis of some unsaturated 1,1-difluoro-2-hydroxyethylphosphonates
作者:Romana Pajkert、Henryk Koroniak
DOI:10.1016/j.jfluchem.2007.05.016
日期:2007.10
A short synthesis of some 1,1-difluoro-2-hydroxymethylphosphonates in good yields is described. This procedure involves the regioselective 1,2-addition of [(diethoxyphosphoryl)difluoromethyl]lithium toward unsaturated aldehydes and ketones.