Recyclable enamine catalysts for asymmetric direct cross-aldol reaction of aldehydes in emulsion media

Recyclable enamine catalysts for asymmetric direct cross-aldol reaction of aldehydes in emulsion media
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DOI:
10.1039/c1gc15473g
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发表时间:
2011-01-01
期刊:
影响因子:
9.8
通讯作者:
Li, Can
Li, Can
中科院分区:
化学1区
文献类型:
--
作者:
Gao, Qiang;Liu, Yan;Li, Can

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本文报道了在乳化介质中,手性二胺-聚氧乙烯酸复合烯胺催化剂催化的醛的高非对映选择性和对映选择性交叉羟醛缩合反应(> 20:1dr,99%ee)。这种类型的催化剂可以循环使用多次,而不会显著降低活性和选择性。
Highly diastereo- and enantioselective cross-aldol reactions of aldehydes (> 20 : 1 dr, 99% ee), catalyzed by chiral diamine-polyoxometalate acid combined enamine catalysts in emulsion media, are reported. This type of catalysts can be recycled several times without significant deterioration of activity and selectivity.