Orthosilicate-mediated esterification of monosubstituted phosphinic acids
Monosubstituted phosphinic acids are esterified with orthosilicates in excellent yields. Phosphinylidene-containing acids react selectively under these conditions, while disubstituted phosphinic acids and phosphonic acids remain unchanged. One-pot procedures are also described for the preparation of phosphinate esters from an alcohol. This novel method provides a convenient and general alternative to more commonly employed conditions such as diazomethane or carbodiimide.
Dumond
YR
Department of Chemistry, Box 298860, Texas Christian University, Fort Worth, Texas 76129, USA.
Baker
RL
Montchamp
JL