Process for preparing isopropylphenyl/phenyl phosphate

Details Process for preparing isopropylphenyl/phenyl phosphate Process for preparing isopropylphenyl/phenyl phosphate

1980-12-09

1982-09-28

Sutto, Anton H.

Chemistry of carbon compounds

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

260976, 260978, 260980, C07F 909

Patent

active

043517803

ABSTRACT:
Monoisopropylphenyl/phenyl phosphate containing mixtures are prepared by, (1) alkylating phenol with propylene to C.sub.3 /.phi. ratio of less than 0.30 with a p-toluene sulfonic acid catalyst, (2) removing unreacted phenol as distillate to yield a distilland having a C.sub.3 /.phi. ratio above 0.3 and thereafter, (3) phosphorylating the distilland to yield a triaryl phosphate mixture having a reduced 2,6-diisopropylphenyl phosphate content.

REFERENCES:
patent: Re29540 (1978-02-01), Randell et al.
patent: 3859395 (1975-01-01), Terhune et al.

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