Rapid access to polyketide scaffolds via vinylogous Mukaiyama aldol reactions

被引:52
作者
Hassfeld, J [1 ]
Christmann, M [1 ]
Kalesse, M [1 ]
机构
[1] Leibniz Univ Hannover, Inst Organ Chem, D-30167 Hannover, Germany
关键词
D O I
10.1021/ol016677o
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
[GRAPHICS] The use of the Z-configured vinylogous silyl ketene acetals in Mukaiyama aldol reactions is described. Isopropyl alcohol as scavanger and the use of tris(pentafluorophenyl)borane as the Lewis acid are required for obtaining the gamma -alkylated syn-product selectively. In cases of a-chiral aldehydes, Felkin-Anh selectivity was observed.
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页码:3561 / 3564
页数:4
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