Reconstructed hydrotalcite as a highly active heterogeneous base catalyst for carbon-carbon bond formations in the presence of water
Reconstructed hydrotalcite as a highly active heterogeneous base catalyst for carbon-carbon bond formations in the presence of water
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DOI：
10.1021/jo060345l
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发表时间：
2006-07-21
影响因子：
3.6
通讯作者：
Kaneda, Kiyotomi
中科院分区：
文献类型：
--
作者：
Ebitani, Kohki;Motokura, Ken;Kaneda, Kiyotomi
以Mg-Al复合氧化物为原料，经水处理后得到的水滑石为固体碱催化剂，在水存在下，有效地催化了羰基化合物的Aldol反应。重构水滑石的催化作用归因于在层状结构的组织过程中产生的具有均匀分布的强度的表面碱位点。此外，重构水滑石提供了能够促进腈与羰基化合物的Knoevenagel和Michael反应的独特的酸碱双功能表面。
The aldol reaction of carbonyl compounds is efficiently catalyzed by reconstructed hydrotalcites, obtained by treating the Mg-Al mixed oxide with water, as solid base catalysts in the presence of water. The catalysis of the reconstructed hydrotalcites is attributable to the surface base sites, created during the organization of the layered structure, with uniformly distributed strength. Furthermore, the reconstructed hydrotalcites provide a unique acid- base bifunctional surface capable of promoting the Knoevenagel and Michael reactions of nitriles with carbonyl compounds.