Synthesis of Aryl and Arylmethyl Phosphonates by Cross-Coupling of Aryl or Arylmethyl Halides (X = I, Br and Cl) with Diisopropyl H-Phosphonate
作者:Kai Xu、Hao Hu、Fan Yang、Yangjie Wu
DOI:10.1002/ejoc.201201230
日期:2013.1
applicable protocol for the palladacycle-catalysed arylation or K2CO3-promoted arylmethylation of diisopropyl H-phosphonate has been developed. The remarkable features of the palladacycle-catalysed arylation reaction include wide substrate scope (aryl iodides, bromides and chlorides), significant shortening of the reaction time (2 or 3 h) and a lowcatalystloading of 1 mol-%. Note that with the base K2CO3