Process for the preparation of aspartic acid 4-(phenylmethyl) ester
US4888440A · kind A · utility
1Cited by
5References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 25, 1988 |
| Grant date | Dec 19, 1989 |
| Priority date | — |
| Expiry date | Nov 25, 2008 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C227/18
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A process is described for the preparation of aspartic acid 4-(phenylmethyl) ester from aspartic acid and benzyl alcohol, characterized by utilizing a reaction mixture which contains, per mole of aspartic acid, 10-40 moles of benzyl alcohol and 1-5 moles of acetyl chloride, by conducting the reaction at a temperature of -10.degree. C. to 50.degree. C., and by separating the product of the process, after reaction has taken place, by neutralization with organic bases.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.