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Volumn 15, Issue 15, 2009, Pages 3823-3829

Acceleration of reductive elimination of [Ar-Pd-Csp3] by a phosphine/electron-deficient olefin ligand: A kinetic investigation

Author keywords

Cross coupling; Kinetics; Olefins; Palladium; Reductive elimination

Indexed keywords

C-C DOUBLE BONDS; CATALYTIC ACTIVITIES; CROSS-COUPLING; ELECTRON-DEFICIENT OLEFINS; FIRST ORDERS; HOMOGENEOUS CATALYSIS; HYDRIDE ELIMINATIONS; HYDROGEN ATOMS; KINETIC INVESTIGATIONS; NEGISHI COUPLINGS; NEGISHI CROSS COUPLINGS; OLEFIN LIGANDS; ORDERS OF MAGNITUDES; PD COMPLEXES; PD NANOPARTICLES; REDUCTIVE ELIMINATION; SELECTIVE CATALYSTS; TURN-OVER FREQUENCIES; TURN-OVER NUMBERS;

EID: 63849273180     PISSN: 09476539     EISSN: 15213765     Source Type: Journal    
DOI: 10.1002/chem.200802209     Document Type: Article
Times cited : (48)

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    • CCDC 701728 (3) and 701729 (4) contain the supplementary crystallographic data for this paper. These data can be obtained free of charge from The Cambridge Crystallographic Data Centre via 3: C54H42Cl 2O2P2PdCH2Cl2, Mr=1131.97, T= 120 K, monoclinic, space group P21/n, a, 9.0882(8, b=25.761(2, c= 11.379(1) Å, β= 106.49(1)°, V=2554.4(4) Å3, Z=2, ρcalcd= 1.472 g cm-3, μ= 0.78 mm-1, 34743 reflections with 20=60°, 7423 unique, Rint=0.033, R(F)=0.040 [6286 data with I=Iσ(I, wR(F2)=0.113 all data, Crystal data for 4: C54H42O2P 2Pd·0.5 CH2Cl2
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    • While Pd NPs are also known to be effective catalysts for this transformation,[42] both the clear first-order dependence on [Pd] and the results of PPh3 inhibition experiments (see text and Supporting Information for details) ruled them out as being active species in the present case
    • 3 inhibition experiments (see text and Supporting Information for details) ruled them out as being active species in the present case.
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    • Hartwig reported reductive elimination involving an electronic-rich aryl group, and Espinet employed an electron-poor aryl group. Although the substrates in our system, which involved an electronpoor aryl group, were different from theirs, the data still indicate the dramatic accelerating effect on reductive elimination
    • Hartwig reported reductive elimination involving an electronic-rich aryl group, and Espinet employed an electron-poor aryl group. Although the substrates in our system, which involved an electronpoor aryl group, were different from theirs, the data still indicate the dramatic accelerating effect on reductive elimination.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.