Process of producing n-formylaspartic anhydride

Details Process of producing n-formylaspartic anhydride Process of producing n-formylaspartic anhydride

C - Chemistry, Metallurgy

07

D

204/91, 260/363.

C07D 307/66 (2006.01)

Patent

CA 1234389

ABSTRACT N-formylaspartic anhydride is produced by grinding solid aspartic acid into fine particles, whereby the particles have a size of 75 µm or less, and reacting the particles with formic acid and acetic anhydride, the amount of formic acid ranging from 1 to 1.5 moles and the amount of acetic anhydride ranging from 2 to 2.5 moles, each per mole of aspartic acid. According to the process of the present invention, N-formylaspartic acid can be produced in high yields using a small amount of formic acid in a short period of time.

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