Transesterification process
US6075158A · kind A · utility
30Cited by
10References
32Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 21, 1997 |
| Grant date | Jun 13, 2000 |
| Priority date | — |
| Expiry date | Jul 21, 2017 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07F9/11
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A process for the preparation of a phosphate ester is disclosed. A triaryl phosphate is reacted with an alcohol in the presence of a catalytic quantity of a base to produce the phosphate ester product. The base has a base strength of less than 11, and is preferably potassium fluoride or potassium carbonate. Trialkyl phosphates, dialkyl monoaryl phosphates, monoalkyl diaryl phosphates, and mixtures of these compounds can be produced by this process.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.