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- W1994356710 abstract "Several ruthenium-based olefin metathesis catalysts of the formula (PR3)2X2RuCHCHCPh2 have been synthesized, and relative catalyst activities were determined by monitoring the ring-closing metathesis of the acyclic diene diethyl diallylmalonate. The following order of increasing activity was determined: X = I < Br < Cl and PR3 = PPh3 ≪ PiPr2Ph < PCy2Ph < PiPr3 < PCy3. Additional studies were conducted with the catalyst (PCy3)2Cl2RuCH2 to probe the mechanism of olefin metathesis by this class of catalysts. The data support a scheme in which there are two competing pathways: the dominant one in which a phosphine dissociates from the ruthenium center and a minor one in which both phosphines remain bound. Higher catalyst activites could be achieved by the addition of CuCl to the reaction." @default.
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- W1994356710 date "1997-04-01" @default.
- W1994356710 modified "2023-10-10" @default.
- W1994356710 title "Well-Defined Ruthenium Olefin Metathesis Catalysts: Mechanism and Activity" @default.
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- W1994356710 doi "https://doi.org/10.1021/ja963136z" @default.
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