Catalytic, asymmetric Michael reactions of cyclic diketones with beta,gamma-unsaturated alpha-ketoesters.
Catalytic, asymmetric Michael reactions of cyclic diketones with beta,gamma-unsaturated alpha-ketoesters.
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DOI:
10.1021/ol900586f
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发表时间:
2009-05-21
期刊:
影响因子:
5.2
通讯作者:
Wang J
中科院分区:
文献类型:
--
作者:
Calter MA;Wang J
Newly synthesized cinchona alkaloid-derived pyrimidines function as effective asymmetric catalysts for the Michael reaction between cyclic diketones and β,γ-unsaturated-α-ketoesters. The reactions of electrophiles with either aryl or alkyl γ-substituents give 64−99% yields and 94−99% ee.
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