Process for the manufacture of selected phosphonates

Details Process for the manufacture of selected phosphonates Process for the manufacture of selected phosphonates

1979-07-09

1981-04-21

Sutto, Anton H.

Chemistry of carbon compounds

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

C07F 940

Patent

active

042632323

ABSTRACT:
The treatment of a crude reaction product with oxygenated thiourea, a selective reducing agent, allows the preparation of colorless hindered phenol phosphonate compounds which do not discolor on storage.

REFERENCES:
patent: 3790648 (1974-02-01), Schmidt et al.
patent: 3931360 (1976-01-01), Giolito
patent: 3931361 (1976-01-01), Jaffe et al.
Obtemperanskaya, et al., "Chem. Abs.", vol. 85, (1976), 201768k.

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