Three types of reactions between nitrile oxides and (I) endo and exo alkenes, (II) dimerized alkenes, and (III) single alkenes, in which all the alkenes were generated in situ by NaHSO4/SiO2 are presented. This procedure allowed the concomitant generation of both nitrile oxides and alkenes in a single reaction vessel, gave higher yields for the expected isoxazoline products than the conventional method
提出了腈
氧化物与(I)内链和外链
烯烃,(II)二聚
烯烃和(III)单
烯烃之间的三种类型的反应,其中所有
烯烃都是通过NaHSO 4 / SiO 2原位生成的。与使用
烯烃作为起始原料的常规方法相比,该方法允许在单个反应容器中同时产生
氧化
氮和
烯烃,从而为预期的
异恶唑啉产物提供了更高的收率。