The tendency in recent decades is to develop environmentally friendly heterogeneous catalytic systems for organic
transformations. In particular, chemical reactions cooperatively promoted by solid acid-base bifunctional catalysts
with good dispersion of active sites and high catalytic performances have aroused much attention. In this review, recent
advances in preparation and application of solid acid-base bifunctional catalysts for organic transformations are described,
and special emphasis is paid to understand the catalytic mechanisms of the acid-base bifunctionality. Furthermore, strategies
for well positioning acidic sites and basic sites to cohabitation and cooperation are briefly discussed.
Keywords: Organic transformation, heterogeneous catalysis, acid-base bifunctional catalyst, cooperative reaction, cascade reaction.
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