Working Paper
Authors
- Fukai Xie Shenyang Pharmaceutical University ,
- Xiang Li Shenyang Pharmaceutical University ,
- Liangyu Xu Shenyang Pharmaceutical University ,
- Jun Ma Shenyang Pharmaceutical University ,
- Lei Sun Shenyang Pharmaceutical University ,
- Bo Zhang Shenyang Pharmaceutical University ,
- Bin Lin
Shenyang Pharmaceutical University ,
- Maosheng Cheng Shenyang Pharmaceutical University ,
- Yongxiang Liu Shenyang Pharmaceutical University
Abstract
A unique approach to hydrocarbazoles bearing an all-carbon quaternary center at C4a position was developed via a Brønsted acid-initiated Diels-Alder cycloaddition/retro-Michael addition cascade process from facilely prepared azepino[4,5-b]indoles and commercially available acrolein. The method provided a range of hydrocarbazoles in good to excellent yields. The practi-cality of this transformation was demonstrated by scale-up experiment and various transformations to several hydrocarbazole derivatives.
Content

Supplementary material

Syntheses of Hydrocarbazole Derivatives via Brønsted acid-Initiated Diels-Alder Cycloaddition/retro-Michael Addition Cascade Reaction of Azepino[4,5-b]indoles and Acrolein
The supporting information of the paper entitled 'Syntheses of Hydrocarbazole Derivatives via Brønsted acid-Initiated Diels-Alder Cycloaddition/retro-Michael Addition Cascade Reaction of Azepino[4,5-b]indoles and Acrolein'