Tandem Cyclization−Annulation of α-Acidic Isocyanides with 2-Methyleneaminochalcones: Synthesis of Pyrrolo[2,3-<i>c</i>
]quinoline Derivatives
作者:Jinhuan Dong、Xin Wang、Hui Shi、Lei Wang、Zhongyan Hu、Yifei Li、Xianxiu Xu
DOI:10.1002/adsc.201801103
日期:2019.2.19
single operation, and represent novel protocols for the expedient synthesis of both aromatic and partially aromatic pyrrolo[2,3‐c]quinoline derivatives from readily available precursors under metal‐free conditions. Notably, tetrahydro‐3H‐pyrrolo[2,3‐c]quinolones that bear three adjacent stereocenters were obtained in a highly diastereoselective manner.
已成功开发了甲苯磺酰基甲基异氰化物和异氰基乙酸酯与2-亚甲基氨基查耳酮作为aza-1,5-dielectrophiles的串联环化-环化反应。这些多米诺骨转化具有在一次操作中同时形成三个键和两个环的特点,并且代表了在无金属条件下方便地从易得的前体合成芳族和部分芳族吡咯并[2,3- c ]喹啉衍生物的新颖方法。值得注意的是,以高度非对映选择性的方式获得了带有三个相邻立体中心的四氢-3 H-吡咯并[2,3- c ]喹诺酮。