An alternate route to the active chiral hydrogenation catalysts [Ru(bisphosphine)(H)(solvent)3]+:: Synthesis, characterization, and catalytic evaluation

被引:12
作者
Wiles, JA [1 ]
Daley, CJA [1 ]
Hamilton, RJ [1 ]
Leong, CG [1 ]
Bergens, SH [1 ]
机构
[1] Univ Alberta, Dept Chem, Edmonton, AB T6G 2G2, Canada
关键词
D O I
10.1021/om049740x
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
We report an improved synthesis of cis-[Ru(CH3CN)(2)((1-3-eta)-C3H5)((1,2:5,6-eta)-C8H12)]BF4 and its use in the synthesis of [Ru(bisphosphine)((1-3:5,6-eta)-C8H11)(CH3CN)]BF4 (where bisphosphine = (R)-BINAP, (R)-Tol-BINAP). Thermolyses of the complexes [Ru(bisphosphine)((1-3:5,6-eta)-C8H11)(CH3CN)]BF4 afford [Ru(bisphosphine)((1-5-eta)-C8H11)]BF4, which serve as convenient precatalysts to the active hydrogenation catalysts fac-[Ru(bisphosphine)(H)(sol)(3)]BF4 (sol = THF, acetone, i-PrOH). We compare the properties and activities of these catalysts with those of related, established systems.
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收藏
页码:4564 / 4568
页数:5
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