Aromatic esters and thioesters, a process for their preparation

Details Aromatic esters and thioesters, a process for their preparation Aromatic esters and thioesters, a process for their preparation

1990-02-16

1992-12-22

Cintins, Marianne M.

Drug, bio-affecting and body treating compositions

Live hair or scalp treating compositions

Amphoteric or zwitterionic surfactant containing

514513, 514533, 514544, 514880, 560 59, 560 61, A61K 706, A61K 3121, C07C 6976

Patent

active

051732890

ABSTRACT:
Aromatic esters and thioesters of the formula ##STR1## are useful in human and veterinary medicine and in cosmetic formulations. In the formula, X represents oxygen or sulfur, r' and 4" represent hydrogen, lower alkyl, monohydroxyalkyl, polyhydroxyalkyl, aryl or benzyl optionally substituted, the residue of an amino acid or aminated sugar, or taken together form a heterocycle, R.sub.2 represents .alpha., .alpha.'- dissubstituted alkyl having 4-12 carbon atoms or mono- or polycyclic cycloalkyl having 5-12 carbon atoms whose carbon linking carbon is trisubstituted and R.sub.3 and R.sub.4 represent hydrogen or lower alkyl.

REFERENCES:
patent: 3979360 (1976-09-01), Spivak et al.
patent: 4051104 (1977-09-01), Spivak et al.

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