Preparation of pyrazoles and pyrazolines by the reaction of chlorocyclopropanols with hydrazines in the presence of crown ethers

Autor:	V. M. Shostakovskii, V. N. Mochalov, Oleg M. Nefedov, T. K. Voropaeva, S. M. Shostakovskii
Rok vydání:	1985
Předmět:	chemistry.chemical_compound Chemistry Yield (chemistry) Hydrazine Crown (botany) Organic chemistry General Chemistry Phenylhydrazine
Zdroj:	Bulletin of the Academy of Sciences of the USSR Division of Chemical Science. 34:218-220
ISSN:	1573-9171 0568-5230
DOI:	10.1007/bf01157367
Popis:	The reaction of gem-dichlorocyclopropanol with hydrazine and phenylhydrazine in the presence of crown ethers at 20‡C leads to the formation of the corresponding pyrazoles in yields up to 60%. Under analogous conditions, cis- and trans-chlorocyclopropanols and phenylhydrazine give N-phenylpyrazoline in 58% yield.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::c38f9b8da354ba7b07e02a899e90cf06 https://doi.org/10.1007/bf01157367 Zobrazit plný text záznamu Full text from SpringerLink