CH(NH 2) ï¿½ Cooh, isoleucin, probably 0-aminocaproic acid, serin or a-amino-(-hydroxy propionic acid, aspartic acid or aminosuccinic acid, HOOCï¿½CH 2 ï¿½CH(NH 2)ï¿½Cooh, glutaminic acid or a-amino-n-glutaric acid,HOOCï¿½ (CH 2) ï¿½ CH(NH 2) ï¿½ Cooh, diaminoacetic acid, a-O-diaminopropionic acid, lysin.
It may be prepared by heating racemic acid (see TARTARIC Acid) with fuming hydriodic acid; by heating fumaric acid (q.v.) with water at 150-200° C.; by the action of nitrous acid on inactive aspartic acid; and by the action of moist silver oxide on monobromsuccinic acid.
Ital., 1887, 17, p. 126; 1888, 18, p. 457) synthesized the asparagines from the monomethyl ester of inactive aspartic acid by heating it with alcoholic ammonia.
Hydrolysis by means of acids or alkalis converts the asparagines into aspartic acid; whilst on heating with water in a sealed tube they are converted into ammonium aspartate.