X-Ray crystallographic evidence for a vinylogous anomeric effect in benzotriazole-substituted heterocycles

Autor:	Peter J. Steel, Sergey N. Denisenko, Alan R. Katritzky
Rok vydání:	2001
Předmět:	Benzotriazole Anomeric effect Stereochemistry Organic Chemistry Heteroatom X-ray Crystal structure Ring (chemistry) Biochemistry Crystallography chemistry.chemical_compound chemistry Drug Discovery X-ray crystallography
Zdroj:	Tetrahedron. 57:3309-3314
ISSN:	0040-4020
DOI:	10.1016/s0040-4020(01)00218-6
Popis:	Structural evidence for the existence of a ‘vinylogous’ anomeric effect is presented for a series of 4H-4-benzotriazolyl-2,6-diarylpyrans 1a,b and for their benzo-fused derivatives 2–5 and nitrogen analogue 6. X-Ray crystal structure analyses reveal changes in the geometry of the central ring and exocyclic C–N bond, which are discussed in terms of an interaction of the benzotriazole fragment with a heteroatom through four bonds.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::ee6badbf0dc3ed874e056f2d828d3b04 https://doi.org/10.1016/s0040-4020(01)00218-6 Zobrazit plný text záznamu Full Text from ScienceDirect