isoindoloisoquinolinones, pyrroloisoquinolinones, and benzo[a]quinolizinones were successfully assembled from the corresponding imides by using a TfOH-mediated (TfOH = trifluoromethanesulfonic acid) imide carbonyl activation and cyclization strategy. By employing this simple method, the isoquinoline alkaloids crispine A, trolline/oleracein E, and erythrinarbine were successfully synthesized in racemic form. The reaction
通过使用 TfOH 介导的(TfOH =
三氟甲磺酸)
酰亚胺羰基活化和环化策略,从相应的
酰亚胺成功组装了基于
异喹啉的多环内酰胺,例如异
吲哚异喹啉酮、
吡咯并
异喹啉酮和苯并 [a]
喹啉酮。通过使用这种简单的方法,
异喹啉生物碱松脆 A、
三乙醇胺/油
茶素 E 和红菊素以外消旋形式成功合成。不对称 N-苯乙基邻苯二甲
酰亚胺与 TfOH 的反应显示出优异的区域选择性,这通过 DFT 计算得到了合理化。