Mechanism of the palladium-catalyzed intramolecular hydroalkylation of 7-octene-2,4-dione

被引:98
作者
Qian, H [1 ]
Widenhoefer, RA [1 ]
机构
[1] Duke Univ, PM Gross Chem Lab, Durham, NC 27708 USA
关键词
D O I
10.1021/ja0293002
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Cyclization of (E)-7,8-dideuterio-7-octene-2,4-dione [(E)-1-7,8-d2] catalyzed by PdCl2(CH3CN)2 (2) formed cis-2-acyl-3,4-dideuteriocyclohexanone (cis-3-3,4-d2) in 64% yield as the exclusive isotopomer. This experiment, in conjunction with additional deuterium labeling experiments, was in accord with a mechanism for the conversion of 1 to 3 catalyzed by 2 involving attack of the enol carbon atom on a palladium-complexed olefin followed by palladium migration and protonolysis from a palladium enolate complex. Copyright © 2003 American Chemical Society.
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页码:2056 / 2057
页数:2
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