ChemInform Abstract: Bromination of 2-Thiazolylhydrazones

Autor:	G. P. Andronnikova, Vadim A. Shevyrin, S. V. Usol'tseva
Rok vydání:	2010
Předmět:	chemistry.chemical_classification Bromine Intramolecular cyclization chemistry.chemical_element Halogenation General Medicine Hydrogen atom Ring (chemistry) Medicinal chemistry Aldehyde chemistry.chemical_compound chemistry Triazole derivatives Organic chemistry Thiazole
Zdroj:	ChemInform. 25
ISSN:	0931-7597
Popis:	Bromination of the 4-carbethoxy- and 4-carboxy-2-thiazolylhydrazones of aldehydes and ketones occurs principally at the 5 position of the thiazole ring. In the case of aldehyde hydrazones an excess of bromine leads to substitution of the methine hydrogen atom and to intramolecular cyclization of the intermediate halohydrazone to 1,2,4-triazolo[3,4-b]thiazole.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::998705f2abe98696a352c5998757f6de https://doi.org/10.1002/chin.199405100 Zobrazit plný text záznamu Plný text