Process for preparing bis(2-haloalkyl) phosphoro-halidates

Details Process for preparing bis(2-haloalkyl) phosphoro-halidates Process for preparing bis(2-haloalkyl) phosphoro-halidates

1975-02-26

1976-10-19

Raymond, Richard L.

Chemistry of carbon compounds

Dipeptides, e.g., aspartame, anserine, carnosine, etc.

260977, C07F 914

Patent

active

039871290

ABSTRACT:
An improved process is disclosed for the preparation of bis(2-haloalkyl) phosphorohalidates. This process comprises the steps of reacting phosphorus trihalide with a stoichiometric excess of alkylene oxide to form tris(2-haloalkyl) phosphite, substantially eliminating the presence of unreacted alkylene oxide in the tris(2-haloalkyl) phosphite, and finally converting it to bis(2-haloalkyl) phosphorohalidate by reaction with halogen.

REFERENCES:
patent: 3803272 (1974-04-01), Pivawer et al.
patent: 3810961 (1974-05-01), Pivawer
patent: 3886239 (1975-05-01), Pivawer

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