Pyrrolocoumarins. 1. Synthesis and Spectroscopic Investigation of 7-Oxo- and 1,2,7-Trioxo-1,2-dihydropyrano-[3,2-e]indole and Their Derivatives

Autor:	M. I. Sikharulidze, T. E. Khoshtariya, L. T. Bochoidze, V. O. Ananiashvili, V. G. Turabelidze, N. T. Mirziashvili, M. G. Maisuradze, I. G. Abesadze, T. O. Dzhashi, L. N. Kurkovskaya, K. T. Batsikadze
Rok vydání:	2005
Předmět:	Indole test chemistry.chemical_compound chemistry Organic Chemistry Sandmeyer reaction Organic chemistry Ethyl pyruvate Coumarin
Zdroj:	Chemistry of Heterocyclic Compounds. 41:208-215
ISSN:	1573-8353 0009-3122
Popis:	A preparative route is proposed for the synthesis of the novel heterocyclic systems 7-oxo- and 1,2,7-trioxo-1,2-dihydropyrano[3,2-e]indole using classical Fischer and Sandmeyer methods respectively. We have studied various conditions for cyclization of the starting coumarin 6-isonitrosoacetamide and the methyl or ethyl pyruvate 6-coumarinylhydrazones. The syn- and anti-form ratio of the latter and the structure of all of the synthesized compounds were determined using spectroscopic data analysis.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::49596de893cd96c15fcc548c8d365af6 https://doi.org/10.1007/s10593-005-0129-0 Zobrazit plný text záznamu Plný text ve formátu PDF