A Three-Component Reaction for the Synthesis of Diverse, Densely Substituted 2′,3′-Dihydrospiro[indoline-3,6′-[1,3]oxazine]s
作者:Jing Zhang、Hong Gao、Jing Sun、Chao-Guo Yan
DOI:10.1002/ejoc.201402500
日期:2014.9
3′-aryl-2′-styryl-2′,3′-dihydrospiro[indoline-3,6′-[1,3]oxazine]-4′,5′-dicarboxylate derivatives through readily accessible three-component reactions of α,β-unsaturated N-arylaldimines, dialkyl acetylenedicarboxylate, and N-alkylisatins. When simple N-arylaldimines were utilized in the reactions, the corresponding 2′,3′-diaryl-2′,3′-dihydrospiro[indoline-3,6′-[1,3]oxazine]s were obtained in good yields. This reaction
已经开发了一种简单的合成方案,用于有效合成结构多样的 3'-aryl-2'-styyl-2',3'-dihydrospiro[indoline-3,6'-[1,3]oxazine]-4', 5'-二羧酸衍生物,通过容易获得的 α,β-不饱和 N-芳基醛亚胺、乙炔二羧酸二烷基酯和 N-烷基靛红的三组分反应生成。当在反应中使用简单的 N-芳基醛亚胺时,相应的 2',3'-二芳基-2',3'-二氢螺[indoline-3,6'-[1,3]恶嗪]以良好的收率获得。该反应为芳族亚胺与缺电子炔烃反应生成的反应性 1,4-偶极中间体提供了潜在的合成应用。