Summary
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1.
Polymerization reactions were carried out with anhydrides of -carboxygiycine and N-carbcxy-DL-alanine, and the 2,5-piperazinediones present in the polymerization products were determined quantitatively.
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2.
A hypothesis is advanced concerning the mechanism of the polymerization reaction of anhydrides of α-carbosyarmino acids; it accounts for the formation of 2,5-piperazinc diones.
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Poroshin, K.T. Some peculiar features of the polymerization of anhydrides of α-carboxyamino acids. Russ Chem Bull 5, 755–758 (1956). https://doi.org/10.1007/BF01178942
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DOI: https://doi.org/10.1007/BF01178942