Lewis Acid-Catalyzed Allylation Reactions of Acylhydrazones with Tetraallyltin in Aqueous Media
作者:Shū Kobayashi、Tomoaki Hamada、Kei Manabe
DOI:10.1055/s-2001-15166
日期:——
Allylation reactions of various benzoylhydrazones with tetraallyltin were found to proceed smoothly in the presence of scandium triflate as a Lewis acid catalyst at ambient temperature in aqueous media, to afford the corresponding homoallylic amine derivatives in high yields. Three-component reactions of aldehydes, benzoylhydrazine, and tetraallyltin were also catalyzed by scandium triflate in the same media. Furthermore, a simple procedure to prepare oxazolidinone derivatives utilizing these reactions was developed.
在水相介质中,在三氟甲磺酸钪作为路易斯酸催化剂的存在下,多种苯甲酰肼与四烯基锡的烯化反应在室温下顺利进行,以高产率生成相应的同烯丙基胺衍生物。醛、苯甲酰肼和四烯基锡的三组分反应也可以在相同介质中通过三氟甲磺酸钪催化。此外,还开发了一种利用这些反应制备恶唑啉酮衍生物的简单方法。