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Zeolites as Shape-Selective Catalysts: Highly Selective Synthesis of Vanillin from Reimer-Tiemann Reaction of Guaiacol and Chloroform

机译:Zeolites as Shape-Selective Catalysts: Highly Selective Synthesis of Vanillin from Reimer-Tiemann Reaction of Guaiacol and Chloroform

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摘要

Reimer-Tiemann reaction of guaiacol and chloroform was carried out in the presence of various zeolites. Vanillin was afforded as major product in a high selectivity. Zeolites played an important role of shape-selective catalysts in the reactions. Among the examined zeolites, ZSM-5 showed the best result to give the desired product vanillin in 85 selectivity and 58 yield.

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