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Note | Regular issue | Vol 63, No. 7, 2004, pp.1651-1658
Published online, 25th May, 2004
DOI: 10.3987/COM-04-10082
Synthesis and 1,3-Dipolar Cycloaddition Reactions of New Pyrazolo[1,5,4-ef][1,5]bezodiazepines

Latifa Bouissane, Said El Kazzouli, El Mostapha Rakib,* Mostafa Khouili, Abdellah Hannioui, Mohammed Benchidmi, El Mokhtar Essassi, and Gérald Guillaumet

*Department of Chemistry and Environment, Faculty of Science and Technology, BP 523, 23000 Béni-Mellal, Morocco

Abstract

New pyrazolo[1,5,4-ef][1,5]benzodiazepines have been synthesized by condensation of 7-aminoindazole with β-keto esters, alkylation and 1,3-dipolar cycloaddition. The peri- and regioselective cycloaddition of allylpyrazolo-1,5-benzodiazepinones and 2,4,6-trimethylbenzonitrile oxide was investigated by one- and two- dimensional 1H and 13C NMR spectrum.