Pictet-Spengler condensation reactions catalyzed by a recyclable H+-montmorillonite as a heterogeneous Brønsted acid
作者： YuFeng Wang , ZhanBo Song , ChunXia Chen , JinSong Peng
DOI: 10.1007/S11426-010-0073-4
关键词:
摘要: Catalytic performance of different cation-exchanged montmorillonite clays has been investigated in the Pictet-Spengler C-C bond forming reaction. H+-Montmorillonite was found to be a very efficient and reusable catalyst for endo cyclization β-phenylethylamine derivatives with aldehydes under solvent-free conditions. In addition, an aqueous condensation version synthesis tetrahydro-β-carbolines using H+-montmorillonite developed. these environmentally friendly processes, use organic solvents avoided recycled maintenance high catalytic activity.
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