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Report | Regular issue | Vol 20, No. 9, 1983, pp.1801-1804
Published online, 1st January, 1970
DOI: 10.3987/R-1983-09-1801
Synthesis of Some 3-Oxo-2-phenyl-6,7-dihydro-2H-pyrano[4,3-c]pyrazole Derivatives

Bernard Chantegrel, Abdel Ilah Nadi, and Suzanne Gelin

*Département de Biochimie, Laboratoire de Chimie Organique, Institut National des Sciences Appliquées, 20 Avenue Albert Einstein 69621 Villeurbanne Cedex, France


Acylation reaction of 3-(2-methyl-1-propenyl)-1-phenyl-2-pyrazolin-5-one provides a route to 6,6-dimethyl-3-oxo-2-phenyl-6,7-dihydro-2H-pyrano[4,3-c]pyrazole derivatives.