Process for the preparation of N-acylphosphinothricin diesters

Details Process for the preparation of N-acylphosphinothricin diesters Process for the preparation of N-acylphosphinothricin diesters

1989-06-29

1991-12-24

Rizzo, Nicholas S.

Organic compounds -- part of the class 532-570 series

Organic compounds

Phosphorus esters

C07F 930

Patent

active

050754858

ABSTRACT:
In order to prepare N-acylphosphinothricin diesters, acetals of methyl-(3-oxopropyl)phosphinic acid esters of the formula ##STR1## are reacted in a dipolar aprotic solvent with a carboxylic acid amide and carbon monoxide in the presence of hydrogen gas using a cobalt compound as a catalyst, where the radical R' is alkyl or aryl or aralkyl.

REFERENCES:
patent: 3974243 (1976-08-01), Kleiner
patent: 4264532 (1981-04-01), Tsuruoka et al.
patent: 4906764 (1990-03-01), Takamatsu
A guidebook to mechanism in Organic Chemistry by P. Syken, p. 210.
Chemical Abstracts, vol. 104, 1986, No. 33873F.
H. Wakamatsu, Chemical Communications, p. 1540 (1971).

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