Conjugate Addition of Indole to α,β‐Unsaturated Ketones Catalyzed by Lewis Acid Immobilized on a Biorenewable Support |
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| Authors: | Bei‐Yao Li Miao Zhang Xin‐Min Yan Yan‐Qing Peng |
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| Institution: | Shanghai Key Laboratory of Chemical Biology, Institute of Pesticides and Pharmaceuticals, East China University of Science and Technology, Shanghai 200237, P. R. China |
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| Abstract: | Sulfonated carbonaceous solid acid was prepared straightforwardly from household granulated sucrose through a one‐pot carbonization—sulfonation process. The performance of this solid Brønsted acid was tested by the 1,1‐diacylation of aldehydes. Lewis acid, such as indium chloride, was supported on sucrose‐derived carbonaceous solid acid through anion metathesis and successfully applied to the conjugate addition of indole to α,β‐unsaturated ketones. |
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| Keywords: | Heterogeneous catalysis Sucrose Sulfonation Lewis acid |
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