MCM-41–Quaternary organic tetraalkylammonium hydroxide composites as strong and stable Brønsted base catalysts

Abstract

Quaternary organic tetraalkylammonium hydroxide grafted on MCM-41 is a strong Brønsted base catalyst, and represents a useful alternative to soluble bases in reactions such as Knoevenagel condensations, Michael additions and aldol condensations because of their high catalytic activity under mild conditions, and good stability.

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