Mechanism of the chemical conversions of amino acids with various chain lengths on a dehydrated silica surface

The joint use of methods of IR spectroscopy and mass spectrometry with bombardment by fast atoms to identify products of chemisorption of --amino acids on a dehydrated silica surface is described. It was established that amino acids undergo multistage chemical conversions in this case, with the formation of various products of intra- and intermolecular condensation — lactams, linear and cyclic peptides. The composition of the condensation products depends on the chain length of the amino acids.Translated from Teoreticheskaya i Éksperimental/naya Khimiya, Vol. 26, No. 5, pp. 628–633, September–October, 1990.