Preparation of tertiary phosphine

Abstract

Abstract PURPOSE: To obtain the titled compound useful as a reducing agent for the synthesis of organic compounds and as a disoxidant for nitro compounds in high yield, by reacting phosphine dihalogenide with hydrogen in the presence of a specific compound of a platinum group metal. CONSTITUTION: A compound of formula I (R is 1W18C alkyl or 6W14C aryl group; X is Cl, Br, I, etc.), e.g. trimethylphosphine dihalogenide, is reacted with hydrogen in the presence of one or more compounds selected from the group consisting of a halide of a platinum group metal, e.g. rhodium chloride, and a platinum group metal complex, e.g. dichlorobis (triphenylphosphine)palladium (II), at 100W250°C to give a tertiary phosphine of formula II. For example, triphenylphosphine is obtained in 93% yield, using RhCl 3 as a catalyst. EFFECT: A short reaction time even under a low pressure as low as 10kg/cm 2 . COPYRIGHT: (C)1980,JPO&Japio

Inventors

• 👤 Kiyoshi Fukui
• 👤 Noboru Kakeya
• 👤 Junichiro Kita
• 👤 Susumu Fujimura

Bibliographic Details