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NOVEL SYNTHESIS OF HIGHLY FUNCTIONALIZED PYRAZOLONE SYSTEMS VIA REARRANGEMENT OF 5-PHENYL-1-OXA-5,6-DIAZASPIRO[2.4]HEPTANE-4,7-DIONES
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NOVEL SYNTHESIS OF HIGHLY FUNCTIONALIZED PYRAZOLONE SYSTEMS VIA REARRANGEMENT OF 5-PHENYL-1-OXA-5,6-DIAZASPIRO[2.4]HEPTANE-4,7-DIONES

S. A. M. Metwally, T. A. Mohamed, O. S. Moustafa and Y. A. El-Ossaily
Chemistry of heterocyclic compounds (New York, N.Y. 1965), Vol.46(11), pp.1344-1353
01/02/2011
DOI: https://doi.org/10.1007/s10593-011-0671-x

Abstract

Chemistry Chemistry, Organic Physical Sciences Science & Technology
Epoxidation of 4-alkylidene(arylidene)-1-phenyl-3,5-pyrazolidinediones using alkaline hydrogen peroxide gave the corresponding 5-phenyl-1-oxa-5,6-diazaspiro[2.4] heptane-4,7-dione derivatives. Their reaction with nucleophilic reagents was investigated. The resulting products depend on the type of the diazaspiro compound and/or the nucleophile used.

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