78830-48-5Relevant articles and documents
The Cycloaddition of Nitrilimines with 1,2-Dibenzoylethylenes
Oida, Tatsuo,Shimizu, Tomio,Hayashi, Yoshiyuki,Teramura, Kazuhiro
, p. 1429 - 1433 (2007/10/02)
The cycloaddition of nitrimines with 1,2-dibenzoylethylenes gave an unexpected 1,3-diaryl-4-benzoylpyrazole and benzoic acid, along with an expected cycloadduct, 1,3-diaryl-4,5-dibenzoyl-2-pyrazoline, and its dehydrogenated product, 1,3-diaryl-4,5-dibenzoylpyrazole.The elimination of the benzoyl group from the pyrazoline followed by dehydrogenation was shown to be the course of the unusual reaction.