Acylhydrazones derived from -methyl--pent-4-enoylhydrazine or -methyl--pent-4-ynoylhydrazine and αβ-unsaturated aldehydes undergo intramolecular Diels-Alder reactions at elevated temperatures. An intermolecular counterpart, the addition of methacrolein benzoylhydrazone to -phenylmaleimide, has also been carried out.
衍生自-甲基-戊-4-烯丙基
肼或-甲基-戊-4-炔基
肼的酰基hydr和αβ-不饱和醛在高温下进行分子内Diels-Alder反应。还进行了分子间的对应物,将甲基
丙烯醛苯甲酰yl加到-苯基马来
酰亚胺中。