Organophosphorus Chemistry without PCl<sub>3</sub>: A Bridge from Hypophosphorous Acid to H-Phosphonate Diesters
作者:Henry C. Fisher、Lucie Prost、Jean-Luc Montchamp
DOI:10.1002/ejoc.201301412
日期:2013.12
A process for the conversion of hypophosphorousacid (H3PO2, HPA) and alcohols into various H-phosphonatediesters [(RO)2P(O)H] is described. The new reaction provides a missing bridge between HPA and important H-phosphonates, completely avoiding the use of PCl3. Nickel chloride or nickel on silica catalyze the oxidative phosphorylation of alkyl phosphinates with various alcohols or water. The reaction
A novel approach to H-phosphonates from hypophosphorous acid using a transfer hydrogenation process was developed. This method is atom-economical, environmentally friendly, catalytic, and efficient, leading easily to H-phosphonate monoesters or ammonium salt in trioderate to good yields. (c) 2007 Elsevier Ltd. All rights reserved.