Amino acid mixtures, their alkali metal salts and process for pr

Details Amino acid mixtures, their alkali metal salts and process for pr Amino acid mixtures, their alkali metal salts and process for pr

1983-04-14

1985-06-25

Nucker, Christine M.

Compositions

Compositions containing a single chemical reactant or plural...

Organic reactant

252189, 252192, 423222, 423223, 423226, 562433, 562443, 562507, 562553, 562567, 562575, C09K 300, H05B 3300

Patent

active

045252947

ABSTRACT:
The present invention relates to the preparation of mixtures of sterically hindered substituted N-secondary amino acids or their alkali metal salts by a one-step reductive condensation of an amino acid or its alkali metal salt containing a primary amino group and a ketone to thereby form a mono-substituted amino acid or alkali metal salt thereof, followed by preparing the corresponding sterically hindered tertiary amino acids or alkali metal salt thereof by reacting the mono-substituted amino acids or alkali metal salt thereof with an unhindered aldehyde under reducing conditions in the presence of a hydrogenating catalyst. The novel mixtures of the sterically hindered mono-substituted amino acids and the tertiary amino acids and their alkali metal salts are useful promoters for alkaline salts in "hot pot" acid gas scrubbing processes.

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