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Volumn 2, Issue 10, 2012, Pages 2087-2099

Imidazole based ruthenium(IV) complexes as highly efficient bifunctional catalysts for the redox isomerization of allylic alcohols in aqueous medium: Water as cooperating ligand

Author keywords

Allylic alcohols; Aqueous medium; Cooperating ligands; DFT calculations; Redox isomerization; Ruthenium catalysts

Indexed keywords

ALLYLIC ALCOHOL; AQUEOUS MEDIUM; DFT CALCULATION; REDOX ISOMERIZATION; RUTHENIUM CATALYSTS;

EID: 84868516356     PISSN: 21555435     EISSN: None     Source Type: Journal    
DOI: 10.1021/cs300369j     Document Type: Article
Times cited : (53)

References (94)
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    • For other ruthenium catalized processes in aqueous medium see refs 30-38 and 3
    • For other ruthenium catalized processes in aqueous medium see refs 30-38 and 3: Cadierno, V.; García-Garrido, S. E.; Gimeno, J. Chem. Commun. 2004, 232-233.
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    • Tables for X-Ray Crystallography; Kynoch Press: Birmingham, U.K., 1974; Vol. IV (present distributor: Kluwer Academic Publishers; Dordrecht, The Netherlands).
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    • The distance and angle values found in 1a for H··· Cl1i and N2-HCl1i of 2.66 Å and 148°, respectively, and in 1b for H···Cl2i and N2-H···Cl2i of 2.46 Å, and 158°, respectively, suggest the presence of an intermolecular weak hydrogen interaction
    • The distance and angle values found in 1a for H··· Cl1i and N2-HCl1i of 2.66 Å and 148°, respectively, and in 1b for H···Cl2i and N2-H···Cl2i of 2.46 Å, and 158°, respectively, suggest the presence of an intermolecular weak hydrogen interaction.
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    • The analogous ruthenium(II) pyrazole-precatalysts also show a lower catalytic activity (see ref 40)
    • The analogous ruthenium(II) pyrazole-precatalysts also show a lower catalytic activity (see ref 40).
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    • Complex 1a is also active at 35 °C (60 min; 99%)
    • Complex 1a is also active at 35 °C (60 min; 99%).
  • 86
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    • It is interesting to note that the catalyst is scarcely soluble in water, the reaction proceeding in a biphasic manner
    • It is interesting to note that the catalyst is scarcely soluble in water, the reaction proceeding in a biphasic manner.
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    • Activity probably being dependent on the different miscibility of the alcohols in water
    • Activity probably being dependent on the different miscibility of the alcohols in water.
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    • In the cis-hydroxo route of the benzilimidazole complex the acrolein hydrogenation is stepwise, hydride transfer preceding proton transfer. However, the two transition states located have very similar energies and are separated by a very shallow minimum (see ref 92)
    • In the cis-hydroxo route of the benzilimidazole complex the acrolein hydrogenation is stepwise, hydride transfer preceding proton transfer. However, the two transition states located have very similar energies and are separated by a very shallow minimum (see ref 92).
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    • The asynchronicity in ketone hydrogenation by bifunctional ruthenium catalysts has been recently analyzed: Chen, Y.; Tang, Y.; Lei, M. Dalton Trans. 2009, 2359-2364.
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    • Described as the energetic span of the catalytic cycle
    • Described as the energetic span of the catalytic cycle: Kozuch, S.; Martin, J. M. L. ChemPhysChem 2011, 12, 1413-1418.
    • (2011) ChemPhysChem , vol.12 , pp. 1413-1418
    • Kozuch, S.1    Martin, J.M.L.2


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.