Catalyst-free and atom-economic synthesis of substituted 1-acetyl and 1-hydroxyl carbazoles
2018
Yu, Feng | Li, Dan | Wei, You | Kang, Rui-Ming | Guo, Qi-Xiang
The first-ever Diels-Alder reactions of 3-alkenyl indoles with a conjugated alkynyl ketone are reported. These reactions proceed in an atom-economic manner without a catalyst and give various substituted 1-acetyl carbazoles in moderate to excellent yields. These products can be converted to 1-hydroxyl carbazoles in high yields under mild reaction conditions.
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