Title:
SOLVENTLESS SYNTHESIS OF HYDROPHILIC PHENOL ESTER DERIVATIVES
Document Type and Number:
WIPO Patent Application WO2002040447
Kind Code:
A3
Abstract:
Process for preparing benzenesulfonate salts from an appropriately substituted acid chloride and a hydroxybenzenesulfonic acid is conducted in the absence of solvent, in a molar excess of acid chloride and in the presence of a phase transfer catalyst selected from quaternary ammonium and quaternary phosphonium salts and the target reaction product. The molar excess of the acid chloride is used to reduce the occurrence of gelation in the product.
Inventors:
MAJERCZAK VICTORIA ANN
GIBSON MICHAEL STEVEN
ORLANDO ROBERT JAMES
GIBSON MICHAEL STEVEN
ORLANDO ROBERT JAMES
Application Number:
PCT/US2001/043481
Publication Date:
April 24, 2003
Filing Date:
November 14, 2001
Export Citation:
Assignee:
PROCTER & GAMBLE (US)
International Classes:
C07B61/00; C07C303/22; C07C303/32; C07C309/42; (IPC1-7): C07C303/32; C07C309/42
Foreign References:
| US4536314A | 1985-08-20 | |||
| US5069828A | 1991-12-03 |
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