Use of deuterium labeling studies to determine the stereochemical outcome of palladium migrations during an asymmetric intermolecular heck reaction

被引:29
作者
Wheatley, Bronwen M. M. [1 ]
Keay, Brian A. [1 ]
机构
[1] Univ Calgary, Dept Chem, Calgary, AB T2N 1N4, Canada
关键词
D O I
10.1021/jo071119u
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
[GRAPHICS] A series of deuterium labeling experiments showed that Pd migrations during an intermolecular asymmetric Heck reaction between phenyl triflate and various deuterated 2,3-dihydrofurans (2b, 2c, 2d, 2e) occurs exclusively by either syn-1,2-dyotropic shifts or a syn-chain-walking mechanism; no evidence was observed to support anti-1,2-dyotropic shifts or anti-beta-H Pd eliminations during the formation of 6 and 7.
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页码:7253 / 7259
页数:7
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