摘要 官能化邻亚氨基酚 L 1 H–L 5 H 的反应(L 1 H 是 2-苯亚甲基氨基苯酚,L 2 H 是 2-苯亚甲基氨基-5-甲基苯酚,L 3 H 是 2-苯亚甲基氨基-5-氯苯酚,L 4 H是 2-亚苄基氨基-3-硝基苯酚,L 5 H 是 2-亚苄基氨基-4-硝基苯酚)与溴化三苯基锡(IV)在碱存在下得到相应的三苯基锡配合物I – V与一般的邻亚氨基酚配体形成 (L n )SnPh 3。配合物II的分子结构和晶体形式的III通过 X 射线衍射测定(CIF 文件 CCDC № 2131549 ( II ) 和 2131548 ( III ))。
A series of functionalized 2,3-dihydro-1,4-benzoxazines were obtained in moderate to excellent yields via domino [5 + 1] annulations of 2-halo-1,3-dicarbonyl compounds 2 with imines 1 under mild conditions and the application of this method in the synthesis of bioactive analogues, such as functionalized tetracyclic-1,4-benzoxazines which contain two new heterocyclic rings and one quaternary carbon