Synthesis of spiro [5.4] decenones and their transformation into bicyclo[4.4]deca-1,4-dien-3-ones by domino "elimination-double-Wagner-Meerwein-rearrangement" reactions

被引:9
作者
Bose, G [1 ]
Ullah, E [1 ]
Langer, P [1 ]
机构
[1] Univ Greifswald, Inst Chem & Biochem, D-17487 Greifswald, Germany
关键词
cyclization; domino reactions; rearrangments; silyl enol ethers; spiro compounds;
D O I
10.1002/chem.200400707
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
The [3+3] cyclization of 1,3-bis-silyl enol ethers with 1,1-diacylcyclopentanes allows a convenient synthesis of spiro[5.4]decenones. Treatment of these compounds with trifluoroacetic acid (TFA) afforded a great variety of bicyclo [4.4.0]deca-1,4-dien-3-ones containing an angular alkyl group. This core structure occurs in a number of pharmacologically relevant natural products.
引用
收藏
页码:6015 / 6028
页数:14
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