Abstract
IN previous publications1, it was shown that the degradation of α-amino-acids with certain carbonyl compounds proceeds through the intermediate formation of an azomethine carboxylic acid (I), which is decarboxylated to the mesomeric anion (II). The liberated proton on recombination can attack either of the two possible positions (a) or (b) [see (II)] leading to a mixture of the two tautomerides, (III) and (IV), which on hydrolysis give rise to two carbonyl compounds.
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References
(a), Baddar, F. G., J. Chem. Soc., S 163 (1949); (b), ibid., 136 (1950).
Ingold, C. K., and Piggott, H. A., J. Chem. Soc., 121, 2381 (1922).
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BADDAR, F., ISKANDER, Z. Triad Prototropic Systems. Nature 167, 1069–1070 (1951). https://doi.org/10.1038/1671069a0
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DOI: https://doi.org/10.1038/1671069a0
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