Process for producing low temperature stable tert-butylphenyl di

Details Process for producing low temperature stable tert-butylphenyl di Process for producing low temperature stable tert-butylphenyl di

1981-07-01

1983-11-08

Sutto, Anton H.

Chemistry of carbon compounds

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

260966, C07F 909

Patent

active

044141610

ABSTRACT:
A process for producing tert-butylphenyl diphenyl phosphate which is stable at low temperature by a process wherein phenol is butylated to produce tert-butylphenol which is isomerized to produce mixed meta and para isomers thereof, and which thereafter is alkylated with isobutylene to produce tert-butylphenol having a C.sub.4 /.phi. ratio of about 0.62. The tert-butylphenol is then phosphorylated to the tert-butylphenyl diphenyl phosphate meta/para mixture with phosphorus oxychloride. The disclosed process provides a tert-butylphenyl diphenyl phosphate which will not freeze or gel at low temperatures.

REFERENCES:
patent: 3931091 (1976-01-01), d'Ostrowick
patent: 4103096 (1978-07-01), Giolito et al.
patent: 4280945 (1981-07-01), Mirviss et al.

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