Synthesis of cyclopentenones from cyclopropanes and silyl ynol ethers

被引:61
|
作者
Qi, Xiangbing [1 ]
Ready, Joseph M. [1 ]
机构
[1] Univ Texas SW Med Ctr Dallas, Dept Biochem, Dallas, TX 75390 USA
关键词
cycloaddition; cyclopentenones; cyclopropanes; ynols;
D O I
10.1002/anie.200801957
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
(Chemical Equation Presented) Exploiting an opening: Lewis acid promoted ring-opening of donor-acceptor cyclopropanes generates a 1,3-zwitterion; cycloaddition with a silyl ynol ether leads to a general synthesis of cyclopentenones (see scheme). Substitution is tolerated on the ynol and on all positions of the cyclopropane to give tri-, tetra-, and penta-substituted cyclopentenones in high yield. © 2008 Wiley-VCH Verlag GmbH & Co. KGaA.
引用
收藏
页码:7068 / 7070
页数:3
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