Layered Materials with Coexisting Acidic and Basic Sites for Catalytic One-Pot Reaction Sequences

作者：Motokura Ken; Tada Mizuki; Iwasawa Yasuhiro^*

来源：Journal of the American Chemical Society, 2009, 131(23): 7944-+.

DOI：10.1021/ja9012003

Acidic montmorillonite-immobilized primary amines (H-mont-NH(2)) were found to be excellent acid-base bifunctional catalysts for one-pot reaction sequences, which are the first materials with coexisting acid. and base sites active for acid-base tamdem reactions.: For example, tandem deacetalization-Knoevenagel condensation proceeded successfully with the H-mont-NH(2), affording the, corresponding condensation product in a. quantitative yield. The acidity of the H-mont-NH(2) was strongly influenced by the preparation solvent, and the base-catalyzed reaction's were enhanced by interlayer acid sites.

• 出版日期2009-6-17