Chemical transformations of proteinogenic amino acids during their sublimation in the presence of silica

Details Chemical transformations of proteinogenic amino acids during their sublimation in the presence of silica Chemical transformations of proteinogenic amino acids during their sublimation in the presence of silica

May 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991oleb...21..129b&link_type=abstract

Origins of Life and Evolution of the Biosphere, Volume 21, Issue 3, pp.129-144

Computer Science

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5

Scientific paper

Proteinogenic amino acids were sublimed in gram quantities in the presence of silica. High-performance liquid chromatographic and fast-atom-bombardment mass-spectrometric measurements showed that diketopiperazines (DKPs) were the main products of silica catalyzed thermal transformations in the case of aliphatic bifunctional amino acids. Intensive formation of products of decarboxylation, deamination and some other reactions was observed in the cases of trifunctional amino acids and phenylalanine. Possible mechanisms of reactions occured have been discussed. Principal possibility of ‘gas-solid-phase’ DKP synthesis has been demonstrated for bifunctional aliphatic amino acids.

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