X-ray, 13C NMR, and DFT studies on a ruthenium(IV) allyl complex.: Explanation for the observed control of regioselectivity in allylic alkylation chemistry

被引:53
|
作者
Hermatschweiler, R
Fernández, I
Pregosin, PS [1 ]
Watson, EJ
Albinati, A
Rizzato, S
Veiros, LF
Calhorda, MJ
机构
[1] ETH, HCI, Inorgan Chem Lab, CH-8093 Zurich, Switzerland
[2] Univ Milan, Dept Struct Chem, I-20133 Milan, Italy
[3] Inst Super Tecn, Ctr Quim Estrutural, P-1049001 Lisbon, Portugal
[4] Inst Tecnol Quim & Biol, P-2781901 Oeiras, Portugal
[5] Univ Lisbon, Dept Quim & Bioquim, Fac Ciencias, P-1749016 Lisbon, Portugal
关键词
D O I
10.1021/om049057a
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
X-ray, C-13 NMR, and DFT studies on the cationic Ru(IV) allyl complex Ru(Cp*)Cl(CH3CN)(eta(3)- PhCHCHCH2), as a PF6 salt, have revealed a marked asymmetry in the bonding of the allyl ligand, which can be interpreted as arising from differences in T-bonding from the metal center to the two terminal allyl carbons. This asymmetry in the bonding is offered as an explanation for the observed control of regioselectivity in the Ru-catalyzed allylic alkylation reaction.
引用
收藏
页码:1809 / 1812
页数:4
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