Process for the racemization of n-acetyl-d (l)-.alpha.-...

Details Process for the racemization of n-acetyl-d (l)-.alpha.-... Process for the racemization of n-acetyl-d (l)-.alpha.-...

C - Chemistry, Metallurgy

07

D

260/534.1, 260/3

C07D 209/20 (2006.01) C07C 103/46 (1985.01) C07C 149/247 (1985.01)

Patent

CA 1249994

ABSTRACT OF THE DISCLOSURE N-acetyl-D(L)-.alpha.-carboxylic acids are thermally racemized by melting them down, by adding a small amount of acetic anhydride to the melt and then heating them to a temperature being between the melting temperature and approximately 210°C until the race- mization is practically complete, whereupon the melt is chilled with an aqueous alkali metal hydroxide or ammonia solution. The residence time required for the complete racemization depends on the heating temperature of the melt such that the higher the heating temperature the shorter will be the residence time.

491394

Affiliated with

Also associated with

Rating

Process for the racemization of n-acetyl-d (l)-.alpha.-... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process for the racemization of n-acetyl-d (l)-.alpha.-..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for the racemization of n-acetyl-d (l)-.alpha.-... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1246639