Patent · US Expired

Process for the preparation of the anhydride of N-formyl-L-aspartic acid

US4526985A · kind A · utility

3Cited by

0References

1Claims

0Family size

Assignee

Pierrel SpA · IT

Inventors

Vincenzo Giobbio · Chivasso, IT
Giorgio Ornato · Biella, IT
Livio Buracchi · Biella, IT
Alberto Mangia · Milano, IT

Key dates

Filing date	Jul 18, 1983
Grant date	Jul 2, 1985
Priority date	—
Expiry date	Jul 18, 2003

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07D307/66
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

A process for the preparation of the anhydride of N-formyl-L-aspartic acid by reacting L-aspartic acid with nearly stoichiometric amounts of formic acid and acetic anhydride, under controlled conditions of temperature, reaction and addition times. The product is a known intermediate in the synthesis of .alpha.-L-aspartyl-L-phenylalanine methyl ester, a known sweetening agent.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.