Computational characterization of a complete palladium-catalyzed cross-coupling process:: The associative transmetalation in the Stille reaction

被引:65
作者
Alvarez, R [1 ]
Faza, ON [1 ]
López, CS [1 ]
de Lera, AR [1 ]
机构
[1] Univ Vigo, Dept Quim Organ, Vigo 36310, Spain
关键词
D O I
10.1021/ol052398f
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
The species presumably involved in the associative ligand substitution mechanism for the Stille cross coupling of vinyl bromide and trimethylvinyl stannane with Pd(PMe3)(2)/PMe3 as catalysts in DMF (as ligand and solvent) have been structurally and energetically characterized. The cyclic four-coordinate transition state for the rate-determining transmetalation step explains the retention of configuration in the Stille coupling of chiral nonracemic alkyl stannanes.
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页码:35 / 38
页数:4
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