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Ir spectra and conformational behavior of N-acetyl-(glycine, L-alanine, L-leucine)-N′-methylamides in chloroform

✍ Scribed by Chalakkal I. Jose; Anagha A. Belhekar; Mangala S. Agashe

Publisher
Wiley (John Wiley & Sons)
Year
1987
Tongue
English
Weight
591 KB
Volume
26
Category
Article
ISSN
0006-3525

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✦ Synopsis

NH stretching bands of N-acetyl-(glycine, L-alanine, L-leucine)-W-methylamides in dilute chloroform solution have shown that these dipeptides are present as a mixture of intramolecularly hydrogen-bonded five-membered ring species and nonhydrogen bonded species. Integrated absorption intensity measurements revealed that the concentration of the intramolecularly hydrogen bonded species decreased from 62% in glycine to 35% in the L-leucine derivatives. *NCL communication No. 4105.

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