Reaction of bis(2-chloroethyl)-2-nitroethynylphosphonate with diazoacetic ester

Autor:	G. A. Berkova, Igor A. Litvinov, V. M. Berestovitskaya, Aidar T. Gubaidullin, N. A. Anisimova, N. G. Makarova
Rok vydání:	2009
Předmět:	Reaction conditions Diazoacetic ester Chemistry Structural isomer Organic chemistry General Chemistry 31p nmr spectroscopy Cycloaddition
Zdroj:	Russian Journal of General Chemistry. 79:1446-1457
ISSN:	1608-3350 1070-3632
DOI:	10.1134/s107036320907007x
Popis:	Reactions of 1,3-dipolar cycloaddition of bis(2-chloroethyl)-2-nitroethenylphosphonate to methyl and ethyl diazoacetates proceed with the formation of a mixture of regioisomers of phosphorylated nitropyrazoline carboxylates that under the reaction conditions undergo isomeric transformations and denitration and afford a mixture of Δ1- and Δ2-pyrazoline- and pyrazolecarboxylates. Structures of the synthesized substances are studied by the methods of IR and 1H, 31P NMR spectroscopy and partially by X-ray structural analysis.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::93244392197f18901512c7dd03964993 https://doi.org/10.1134/s107036320907007x Zobrazit plný text záznamu Plný text ve formátu PDF