The Application of a Recyclable Organocatalytic System to the Asymmetric Domino Michael/Henry Reaction in Aqueous Media

被引:51
作者
Chintala, Poornima [1 ]
Ghosh, Subrata K. [1 ]
Long, Elizabeth [1 ]
Headley, Allan D. [1 ]
Ni, Bukuo [1 ]
机构
[1] Texas A&M Univ, Dept Chem, Commerce, TX 75429 USA
基金
美国国家科学基金会;
关键词
asymmetric catalysis; catalyst recycling; domino reactions; Henry reaction; Michael addition; COMPATIBLE IMINIUM ACTIVATION; DIRECT ALDOL REACTION; CONJUGATE ADDITION; ORGANIC-REACTIONS; SILYL ETHER; CASCADE CATALYSIS; HIGHLY EFFICIENT; MANNICH REACTION; ALDEHYDES; WATER;
D O I
10.1002/adsc.201100395
中图分类号
O69 [应用化学];
学科分类号
081704 ;
摘要
A new type of pyrrolidine-based organocatalyst has been developed and found to be very effective for the domino Michael/Henry reaction in aqueous solvents. For the reaction involving pentane-1,5-dial and various nitroolefins, good yields (6585%) and excellent enantioselectivities (99%) were obtained using this catalyst. In addition, the catalyst could be recycled up to four times resulting in good yields and up to seven times with good enantioselectivity.
引用
收藏
页码:2905 / 2909
页数:5
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