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Note | Regular issue | Vol 55, No. 4, 2001, pp.763-768
Published online, 1st January, 1970
DOI: 10.3987/COM-00-9106
Unprecedented Rearrangement Reaction of Nitrile Oxides and a Sterically Congested 4-Ylidene-5-isoxazolone

Francesco Foti,* Giovanni Grassi, Francesco Risitano, Giuseppe Bruno, and Francesco Nicolo

*Dipartimento di Chimica Organica e Biologica, Università di Messina, Vill. S. Agata, I-98166 Messina, Italy

Abstract

The reaction between nitrile oxides and 4-diphenylmethylene-3-phenylisoxazol-5-one (5) proceeds in an unprecedented fashion to yield 4-diphenylmethylene-2,3,3-trisubstituted derivatives (10). Their structure was determined by an X-Ray diffraction study.