作者:Tatsuo Oida、Tomio Shimizu、Yoshiyuki Hayashi、Kazuhiro Teramura
DOI:10.1246/bcsj.54.1429
日期:1981.5
The cycloaddition of nitrilimines 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
腈亚胺与 1,2-二苯甲酰基乙烯的环加成得到了意想不到的 1,3-二芳基-4-苯甲酰基吡唑和苯甲酸,以及预期的环加成物 1,3-二芳基-4,5-二苯甲酰基-2-吡唑啉及其脱氢产物,1,3-二芳基-4,5-二苯甲酰基吡唑。从吡唑啉中消除苯甲酰基然后脱氢被证明是不寻常反应的过程。