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• W2092016074 endingPage "1462" @default.
• W2092016074 startingPage "1452" @default.
• W2092016074 abstract "In chloroform, [RuCl2(nbd)(py)2] (1) (nbd = norbornadiene; py = pyridine) reacts with 1,4-bis(diphenylphosphino)-1,2,3,4-tetramethyl-1,3-butadiene (1,2,3,4-Me4-NUPHOS) to give the dimer [Ru2Cl3(η4-1,2,3,4-Me4-NUPHOS)2]Cl (2a), whereas, in THF [RuCl2(1,2,3,4-Me4-NUPHOS)(py)2] (3) is isolated as the sole product of reaction. Compound 2 exists as a 4:1 mixture of two noninterconverting isomers, the major with C1 symmetry and the minor with either Cs or C2 symmetry. A single-crystal X-ray analysis of [Ru2Cl3(η4-1,2,3,4-Me4-NUPHOS)2][SbF6] (2b), the hexafluoroantimonate salt of 2a, revealed that the diphosphine coordinates in an unusual manner, as a η4-six-electron donor, bonded through both P atoms and one of the double bonds of the butadiene tether. Compounds 2a and 3 react with 1,2-ethylenediamine (en) in THF to afford [RuCl2(1,2,3,4-Me4-NUPHOS)(en)] (4), which rapidly dissociates a chloride ligand in chloroform to give [RuCl(η4-1,2,3,4-Me4-NUPHOS)(en)][Cl] (5a). Complexes 4 and 5a cleanly and quantitatively interconvert in a solvent-dependent equilibrium, and in THF 5a readily adds chloride to displace the η2-interaction and re-form 4. A single-crystal X-ray structure determination of [RuCl(η4-1,2,3,4-Me4-NUPHOS)(en)][ClO4] (5b) confirmed that the diphosphine coordinates in an η4-manner as a facial six-electron donor with the η2-coordinated double bond occupying the site trans to chloride. The η4-bonding mode can be readily identified by the unusually high-field chemical shift associated with the phosphorus atom adjacent to the η2-coordinated double bond. Complexes 2a, 2b, 4, and 5a form catalysts that are active for transfer hydrogenation of a range of ketones. In all cases, catalysts formed from precursors 2a and 2b are markedly more active than those formed from 4 and 5a." @default.
• W2092016074 created "2016-06-24" @default.
• W2092016074 creator A5001566512 @default.
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• W2092016074 creator A5079202680 @default.
• W2092016074 date "2003-02-26" @default.
• W2092016074 modified "2023-09-26" @default.
• W2092016074 title "Ruthenium Complexes of the 1,4-Bis(diphenylphosphino)-1,3-butadiene-Bridged Diphosphine 1,2,3,4-Me₄-NUPHOS: Solvent-Dependent Interconversion of Four- and Six-Electron Donor Coordination and Transfer Hydrogenation Activity" @default.
• W2092016074 cites W1963841821 @default.
• W2092016074 cites W1965873387 @default.
• W2092016074 cites W1965882180 @default.
• W2092016074 cites W1969434706 @default.
• W2092016074 cites W1970765732 @default.
• W2092016074 cites W1971688643 @default.
• W2092016074 cites W1973248427 @default.
• W2092016074 cites W1973391960 @default.
• W2092016074 cites W1974992646 @default.
• W2092016074 cites W1975590077 @default.
• W2092016074 cites W1982160044 @default.
• W2092016074 cites W1991341486 @default.
• W2092016074 cites W1998022087 @default.
• W2092016074 cites W1998745704 @default.
• W2092016074 cites W2000914252 @default.
• W2092016074 cites W2002324876 @default.
• W2092016074 cites W2004040462 @default.
• W2092016074 cites W2005177511 @default.
• W2092016074 cites W2005533000 @default.
• W2092016074 cites W2009512006 @default.
• W2092016074 cites W2009988150 @default.
• W2092016074 cites W2013026231 @default.
• W2092016074 cites W2013160605 @default.
• W2092016074 cites W2014041107 @default.
• W2092016074 cites W2016947475 @default.
• W2092016074 cites W2019123141 @default.
• W2092016074 cites W2022230620 @default.
• W2092016074 cites W2023174370 @default.
• W2092016074 cites W2028257896 @default.
• W2092016074 cites W2029411969 @default.
• W2092016074 cites W2031507990 @default.
• W2092016074 cites W2033288172 @default.
• W2092016074 cites W2037418783 @default.
• W2092016074 cites W2046792605 @default.
• W2092016074 cites W2047649946 @default.
• W2092016074 cites W2048608331 @default.
• W2092016074 cites W2048871788 @default.
• W2092016074 cites W2049748813 @default.
• W2092016074 cites W2051775930 @default.
• W2092016074 cites W2052427235 @default.
• W2092016074 cites W2053361844 @default.
• W2092016074 cites W2057336853 @default.
• W2092016074 cites W2062714224 @default.
• W2092016074 cites W2062886043 @default.
• W2092016074 cites W2064485734 @default.
• W2092016074 cites W2067178942 @default.
• W2092016074 cites W2071388363 @default.
• W2092016074 cites W2075454501 @default.
• W2092016074 cites W2078023132 @default.
• W2092016074 cites W2078202988 @default.
• W2092016074 cites W2086769697 @default.
• W2092016074 cites W2088241141 @default.
• W2092016074 cites W2088756947 @default.
• W2092016074 cites W2091449628 @default.
• W2092016074 cites W2095138457 @default.
• W2092016074 cites W2098351643 @default.
• W2092016074 cites W2102656055 @default.
• W2092016074 cites W2106718031 @default.
• W2092016074 cites W2117547498 @default.
• W2092016074 cites W2121728403 @default.
• W2092016074 cites W2122288573 @default.
• W2092016074 cites W2123990578 @default.
• W2092016074 cites W2143504470 @default.
• W2092016074 cites W2155640786 @default.
• W2092016074 cites W2156190102 @default.
• W2092016074 cites W2158905138 @default.
• W2092016074 cites W2164988583 @default.
• W2092016074 cites W2323424559 @default.
• W2092016074 cites W2949170092 @default.
• W2092016074 cites W2949450202 @default.
• W2092016074 cites W2949665787 @default.
• W2092016074 cites W2951261413 @default.
• W2092016074 cites W2951418778 @default.
• W2092016074 cites W2952173400 @default.
• W2092016074 cites W2952709866 @default.
• W2092016074 cites W2952920007 @default.
• W2092016074 cites W2953150923 @default.
• W2092016074 cites W2953367710 @default.
• W2092016074 cites W4244337490 @default.
• W2092016074 cites W4294555139 @default.
• W2092016074 doi "https://doi.org/10.1021/om020861b" @default.
• W2092016074 hasPublicationYear "2003" @default.
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