Bidentate carbenoid ester coordination in ruthenium(II) Schiff-base complexes leading to excellent levels of diastereo- and enantioselectivity in catalytic alkene cyclopropanation

被引:67
作者
Munslow, IJ [1 ]
Gillespie, KM [1 ]
Deeth, RJ [1 ]
Scott, P [1 ]
机构
[1] Univ Warwick, Dept Chem, Coventry CV4 7AL, W Midlands, England
关键词
D O I
10.1039/b104964j
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Exceptionally high stereoselectivity (ee less than or equal to 98%, dr less than or equal to 99:1) in the cyclopropanation of alkenes with ethyl diazoacetate using a non-planar ruthenium(II) Schiff-base precatalyst is a result of eta C-2,O binding of the carbenoid ester intermediate, according to DFT calculations.
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页码:1638 / 1639
页数:2
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