Amino acids and process for preparing same

Details Amino acids and process for preparing same Amino acids and process for preparing same

B - Operations, Transporting

01

J

260/518, 260/526

B01J 23/40 (2006.01)

Patent

CA 1221984

- 26 - ABSTRACT OF THE DISCLOSURE The present invention relates to the preparation of sterically hindered substituted N-secondary amino acids by a one-step reductive condensation of an amino acid containing a primary amino group and a ketone to thereby form a mono-substituted amino acid. Also disclosed is a process for preparing the corresponding sterically hindered tertiary amino acids by reacting the mono- substituted amino acids with an unhindered aldehyde under reducing conditions in the presence of a hydrogenating catalyst. The sterically hindered mono-substituted amino acids, the tertiary amino acids and their mixtures are useful promoters for alkaline salts in "hot pot" acid gas scrubbing processes.

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