Ce3+-exchanged montmorillonite (Ce3+-mont) as a useful substrate-selective acetalization catalyst

J Tateiwa, H Horiuchi, S Uemura

文献索引：Tateiwa, Jun-ichi; Horiuchi, Hiroki; Uemura, Sakae Journal of Organic Chemistry, 1995 , vol. 60, # 13 p. 4039 - 4043

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被引用次数: 127

摘要

The acetalization of carbonyl compounds with methanol was investigated in the presence of a cationexchanged montmorillonite (Mnf-mont; Mn+= Ce3+, Z1. 4+, Fe3+, A13+, Zn2+, H+, and Na+). Ce3+-mont was found to be the most effective catalyst for substrate-selective acetalization. Cyclohexanones, benzaldehydes, and acid-sensitive 2-furancarboddehyde were converted nearly quantitatively to the corresponding acetals in methanol at 25" C in ...