An improved synthesis of pyrazolo[3,4-b][1,5]benzoxazepine, -benzothiazepine and -benzodiazepine derivatives via a convenient one-pot synthesis

An improved and simple method for the preparation of pyrazolo[3,4-b][1,5]benzoxazepine, -benzothiazepine and -benzodiazepine derivatives was established by the reaction of 5-chloro-1-phenylpyrazole-4-carbaldehydes, ethyl 3-(5-chloro-1,3-diphenylpyrazol-4-yl)-2-cyanoacrylate and 1,4-dincetyl-3-methyl...

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Bibliographic Details
Published inJournal of heterocyclic chemistry Vol. 37; no. 6; pp. 1659 - 1662
Main Author Abd El Latif, FM
Format Journal Article
LanguageEnglish
Published ODESSA HETERO CORPORATION 01.11.2000
Subjects
Chemistry
Chemistry, Organic
Physical Sciences
Science & Technology
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Summary:An improved and simple method for the preparation of pyrazolo[3,4-b][1,5]benzoxazepine, -benzothiazepine and -benzodiazepine derivatives was established by the reaction of 5-chloro-1-phenylpyrazole-4-carbaldehydes, ethyl 3-(5-chloro-1,3-diphenylpyrazol-4-yl)-2-cyanoacrylate and 1,4-dincetyl-3-methyl-2-pyrazolin-5-one with o-aminophenol derivatives and o-phenylendiamine.
ISSN:0022-152X
DOI:10.1002/jhet.5570370643