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Communication | Special issue | Vol 35, No. 1, 1993, pp.41-46
Published online, 1st January, 1970
DOI: 10.3987/COM-92-S11
Reaction of Lithum Trimethylsilydiazomethane with β-Amino-α,β-unsaturated Ketones

Tatsuya ito, Keiichiro Hatano, Yukihisa Kurono, Toyohiko Aoyama, and Takayuki Shioiri*

*Faculty of Pharmaceutical Sciences, Nagoya City University, Tanabe-dori, Mizuho-ku, Nagoya 467-8603, Japan

Abstract

Reaction of lithium trimethylsilyldiazomethane with various β-morpholino- (and piperidino)-α,β-unsaturated ketones gives 3- (or 5)-acylpyrazoles, while the reaction with β-pyrrolidino derivatives mainly affords 1,2-diazabicyclo[3.2.0]hepta-2,6-dienes.