Halodephosphorylation of α,β-unsaturated phosphonic acid monoesters
作者:Hind Lahrache、Sylvie Robin、Gérard Rousseau
DOI:10.1016/j.tetlet.2005.01.089
日期:2005.3
Reaction of α,β-ethylenic and acetylenic phosphonicacidmonoesters with (biscollidine)iodine(I) or (biscollidine)bromine(I) hexafluorophosphate led to α,β-unsaturated halides by, without precedent, dephosphorylation reactions.
Palladium‐Catalyzed Olefination of
<i>N</i>
‐Tosylhydrazones as
<i>β</i>
‐Diazo Phosphonate Precursors with Arylhalides
作者:Jing He、Yijiao Feng、Fang Yang、Bin Dai、Ping Liu
DOI:10.1002/ejoc.202000981
日期:2020.9.30
An efficient Pd‐catalyzedolefination of N‐tosylhydrazones as β‐diazophosphonateprecursors with aryl halides was described. A series of 2,2‐disubstituted vinylphosphonates and (2,2‐diphenylvinyl)diarylphosphine oxides were easily obtained in moderate to excellent yields.