An Alternate Route to the Active Chiral Hydrogenation Catalysts [Ru(bisphosphine)(H)(solvent)3]+: Synthesis, Characterization, and Catalytic Evaluation
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- 作者：Jason A. Wiles ; Christopher J. A. Daley ; Robin J. Hamilton ; Carolyn G. Leong ; and Steven H. Bergens
- 刊名：Organometallics
- 出版年：2004
- 出版时间：September 27, 2004
- 年：2004
- 卷：23
- 期：20
- 页码：4564 - 4568
- 全文大小：91K
- 年卷期：v.23,no.20(September 27, 2004)
- ISSN：1520-6041
文摘
We report an improved synthesis of cis-[Ru(CH3CN)2((1-3-
hars/eta.gif" BORDER=0 >)-C3H5)((1,2:5,6-hars/eta.gif" BORDER=0 >)-C8H12)]BF4and its use in the synthesis of [Ru(bisphosphine)((1-3:5,6-hars/eta.gif" BORDER=0 >)-C8H11)(CH3CN)]BF4 (wherebisphosphine = (R)-BINAP, (R)-Tol-BINAP). Thermolyses of the complexes [Ru(bisphosphine)((1-3:5,6-hars/eta.gif" BORDER=0 >)-C8H11)(CH3CN)]BF4 afford [Ru(bisphosphine)((1-5-hars/eta.gif" BORDER=0 >)-C8H11)]BF4, whichserve 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 thesecatalysts with those of related, established systems.
hars/eta.gif" BORDER=0 >)-C3H5)((1,2:5,6-hars/eta.gif" BORDER=0 >)-C8H12)]BF4and its use in the synthesis of [Ru(bisphosphine)((1-3:5,6-hars/eta.gif" BORDER=0 >)-C8H11)(CH3CN)]BF4 (wherebisphosphine = (R)-BINAP, (R)-Tol-BINAP). Thermolyses of the complexes [Ru(bisphosphine)((1-3:5,6-hars/eta.gif" BORDER=0 >)-C8H11)(CH3CN)]BF4 afford [Ru(bisphosphine)((1-5-hars/eta.gif" BORDER=0 >)-C8H11)]BF4, whichserve 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 thesecatalysts with those of related, established systems.