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- W2333348548 abstract "The methylene-bridged complex [IrRu(CO)4(μ-CH2)(dppm)2][BF4] (1; dppm = μ-Ph2PCH2PPh2) reacts with 1,1-dimethylallene and 1,2-butadiene, resulting in coupling of the cumulene and the bridging methylene group, yielding the complexes [IrRu(CO)4(κ1:κ1-Me2C═CCH2CH2)(dppm)2][BF4] (2) and [IrRu(CO)4(κ1:κ1-MeCH═CCH2CH2)(dppm)2][BF4] (3), respectively, in which the resulting hydrocarbyl fragment is chelating on iridium. Reaction of 1 with 1,1-difluoroallene initially yields the analogous insertion product [IrRu(CO)4(κ1:κ1-F2C═CCH2CH2)(dppm)2][BF4] (6), which slowly converts to [IrRu(CO)3(κ1:κ1-F2C═CCH2CH2CO)(dppm)2][BF4] (7) by carbonyl migratory insertion. Reaction of 1 with propadiene leads to the elimination of 1,3-butadiene and the formation of [IrRu(CO)4(dppm)2][BF4]. In the presence of excess 1,1-dimethylallene, compound 2 reacts further via multiple C–H bond activations to yield [IrRu(CO)3(κ1-C(CH2CH3)═C(CH3)2)(μ-κ1:η2-C≡CC(CH3)═CH2)(dppm)2][BF4] (8) with the elimination of H2, together with [IrRu(CO)3(κ1-C(CH2CH3)═C(CH3)2)(μ-κ1:η2-C≡CCH(CH3)2)(dppm)2][BF4] (9). Complex 2 also reacts with propadiene to generate [IrRu(CO)3(κ1-C(CH2CH3)═C(CH3)2)(μ-κ1:η2-C≡CCH3)(dppm)2][BF4] (10) and with 1,2-butadiene to yield [IrRu(CO)3(κ1-C(CH2CH3)═C(CH3)2)(μ-κ1:η2-C≡CCH2CH3)(dppm)2][BF4] (11) and [IrRu(CO)3(κ1-C(CH2CH3)═C(CH3)2)(μ-κ1:η2-C≡CCH═CH2)(dppm)2][BF4] (12)." @default.
- W2333348548 created "2016-06-24" @default.
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- W2333348548 date "2011-10-10" @default.
- W2333348548 modified "2023-10-14" @default.
- W2333348548 title "Facile Carbon–Carbon Bond Formation and Multiple Carbon–Hydrogen Bond Activations Promoted by Methylene-Bridged Iridium/Ruthenium Complexes" @default.
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- W2333348548 doi "https://doi.org/10.1021/om200732p" @default.
- W2333348548 hasPublicationYear "2011" @default.
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