Infrared absorption spectra of some derivatives of 1,2,3,4-tetrahydro-Β-carboline

Autor:	Kikot', B. S., Kaverina, N. S., Petrova, M. F.
Zdroj:	Chemistry of Heterocyclic Compounds; June 1970, Vol. 6 Issue: 6 p715-718, 4p
Abstrakt:	The IR absorption spectra in 3800-1400 cm−1 region of 1-propyl-, 1-carboxy-, 1-carboxy-1-methyl-, and 1-benzyl-1-carboxy-6-hydroxy-1,-tetrahydro-Β-carbolines, their O-methyl derivatives, and their hydrochlorides are discussed. An assignment of the bands due to the stretching vibrations of NH, NH2+, OH, COO−, and COOH groups is proposed. The hypothesis has been put forward that strong intermolecular and intramolecular hydrogen bonds exist in the substances studied.
Databáze:	Supplemental Index
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