Synthesis of hydrophilic phenol ester derivatives
US4587054A · kind A · utility
12Cited by
3References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 26, 1983 |
| Grant date | May 6, 1986 |
| Priority date | — |
| Expiry date | Sep 26, 2003 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C303/22
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A hydrophilic phenol ester derivative, especially a sulphonated or carboxylated phenol ester is prepared by reacting a C.sub.6 -C.sub.18 substituted or unsubstituted aliphatic carboxylic acid with a C.sub.2 -C.sub.3 alkanoic anhydride, and reacting the resultant C.sub.6 -C.sub.18 acid anhydride with a substituted phenol such as an alkali metal phenol sulphonate salt or hydroxybenzene carboxylic acid to give a C.sub.6 -C.sub.18 acyloxy derivative of a substituted benzene. The two stage process may be carried out in the same reaction vessel without the use of solvents. The products are useful as peroxyacid bleach precursors.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.