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- W1991147094 abstract "The thermal cleavage of the cobalt–carbon bond of cis-dialkylcobalt(III) complexes, cis-[R2Co(bpy)2]+(R=Me, Et, and PhCH2; bpy=2,2′-bipyridine), was enhanced by the presence of benzyl and allyl bromide, inducing the C–C bond formation to yield mainly 1,2-diphenylethane and 1,5-hexadiene, respectively. In the cis-[(PhCH2)2Co(bpy)2]+-allyl bromide system, a comparable amount of the cross-coupling product (4-phenyl-1-butene) was obtained together with the homo-coupling products (1,2-diphenylethane and 1,5-hexadiene). The enhancement of the thermal cleavage of the cobalt–carbon bond of cis-[R2Co(bpy)2]+ by the reactions with benzyl and allyl bromides is caused by the high reactivity of the carbanion ligand of [RCo(bpy)2]+ produced by the homolytic cleavage of the cobalt–carbon bond of cis-[R2Co(bpy)2]+, which undergoes the exchange, coupling, and cross-coupling reactions with benzyl and allyl groups of the bromides. Based on the kinetics and the activation parameters, the cobalt–carbon bond dissociation enthalpy of cis-[(PhCH2)2Co(bpy)2]+ has been estimated to be 92 kJ mol−1." @default.
- W1991147094 created "2016-06-24" @default.
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- W1991147094 date "1987-02-01" @default.
- W1991147094 modified "2023-10-17" @default.
- W1991147094 title "Redox Reactions of<i>cis</i>-Dialkylcobalt(III) Complexes with Benzyl and Allyl Bromides, Induced by Thermal Cleavage of the Cobalt–Carbon Bond" @default.
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- W1991147094 doi "https://doi.org/10.1246/bcsj.60.563" @default.
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