Multinuclear and two-dimensional NMR spectroscopy of monoazo derivatives of chromotropic acid期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

Multinuclear and two-dimensional NMR spectroscopy of monoazo derivatives of chromotropic acid

Authors:	L. A. Fedorov A. Lycka J. Jirman

Affiliation:	(1) V. I. Vernadskii Institute of Geochemistry and Analytical Chemistry, Academy of Sciences of the USSR, USSR;(2) Institute of Organic Synthesis, Pardubice, Czechoslovakia

Abstract:	By the use of one-dimensional (¹H,¹³C, and¹⁵N) and two-dimensional NMR spectra (H,H-COSY, H,C-COSY, and NOESY), it has been established that the phenylazo derivative of chromotropic acid in DMSO has a quinonehydrazone structure; under normal conditions, there is no azo-quinonehydrazone tautomerism. Spectral evidence has been found for the distribution of intramolecular hydrogen bonds.Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 11, pp. 2530–2535, November, 1989.

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