No abstract

Al3+-Exchanged montmorillonite-catalyzed aromatic alkylation of phenol with aldehydes produces the corresponding bisphenols mainly or almost solely in good yields, while that with ketones affords selectively the corresponding alkylphenols in moderate to good yields, the alkylation always occurring at the carbonyl carbon.

No abstract

Metal Cation-Exchanged Montmorillonite (Mn+-mont)-CatalyzedAromatic Alkylation with Aldehydes and Ketones.-The environmentally friendly title reaction proceeds well with phenol ( I) and anisole. Other aromatic compounds such as benzene, toluene, chlorobenzene, and nitrobenzene do not react under the described reaction conditions. The most effective catalysts used are Zr4+-and Al3+-montmorillonite. The product distribution of the reaction depends strongly on the type of carbonyl compound, e.g. (II) and (VIII). -(TATEIWA, J.; HAYAMA, E.; NISHIMURA, T.; UEMURA, S.; J.

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