Preparation of esters of phosphorus acids

Details Preparation of esters of phosphorus acids Preparation of esters of phosphorus acids

1974-05-28

1976-06-22

Sutto, Anton H.

Chemistry of carbon compounds

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

252 466, 252 498, 252 78, 260 306R, 2603473, 2603457, 260930, 260973, C07F 908, C07F 916, C07F 914

Patent

active

039652203

ABSTRACT:
Esters of phosphorus acids are prepared by an improved process whereby aromatic alcohols and phosphorus halides are reacted at specified temperatures in the presence of amine catalysts thereby providing high yields of substantially pure esters and allowing preparation of selected halogen-containing mono- and di-esters of phosphorus acids wherein halogen is directly bonded to phosphorus having substantially no side reactant contamination. The phosphorus esters are useful as intermediates in the preparation of plasticizers, oil additives and functional fluids.

REFERENCES:
patent: 2033916 (1936-03-01), Bass
patent: 2033918 (1936-03-01), Britton
patent: 2520090 (1950-08-01), Burrett
patent: 3689602 (1972-09-01), Ismail

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