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• W1969376905 startingPage "245" @default.
• W1969376905 abstract "Abstract A series of tridentate pyrazol ligands with pendant O- and S-donor groups (L1-L5) and their corresponding nickel(II) chloride complexes (1–5) were synthesized and fully characterized. All nickel precatalysts, activated with methylaluminoxane (MAO), exhibited high activities for ethylene oligomerization [TOF = 17.1–75.8 × 10 3  mol(ethylene)(mol(Ni)) − 1  h − 1 )] with good selectivities for 1-butene produced (62.9 – 81.3%). The catalytic performance was substantially affected by the ligand environment regarding the pendant oxygen- and sulfur-donor groups, and the substituents on the phenol group. Activation of nickel precatalyst 1 with ethylaluminum sesquichloride (Et 3 Al 2 Cl 3 , EASC) instead of MAO produced a significantly better catalyst system than 1/MAO (TOF = 227,000 vs. 30,900 (mol C 2 H 4 )⋅(mol Ni − 1  h − 1 ); however, the 1-butene selectivity was drastically reduced, attaining only 28% with a concomitant production of larger amounts of internal butenes (51.4%) and hexenes (28.2%). Under optimized conditions ([Ni] = 10μmol, 30°C, oligomerization time = 20 min, 40 bar ethylene, [Al]/[Ni] = 250), precatalyst 1 led to TOF = 75,800 (mol C 2 H 4 )⋅(mol Ni − 1  h − 1 ) and 76.1% selectivity for 1-butene." @default.
• W1969376905 created "2016-06-24" @default.
• W1969376905 creator A5020344874 @default.
• W1969376905 creator A5030886010 @default.
• W1969376905 creator A5044702725 @default.
• W1969376905 date "2011-11-01" @default.
• W1969376905 modified "2023-10-01" @default.
• W1969376905 title "Oligomerization of ethylene using tridentate nickel catalysts bearing ether-pyrazol ligands with pendant O- and S-donor groups" @default.
• W1969376905 cites W1965203436 @default.
• W1969376905 cites W1966825765 @default.
• W1969376905 cites W1970562056 @default.
• W1969376905 cites W1972594417 @default.
• W1969376905 cites W1978851420 @default.
• W1969376905 cites W1979093552 @default.
• W1969376905 cites W1979393022 @default.
• W1969376905 cites W1982008717 @default.
• W1969376905 cites W1987586122 @default.
• W1969376905 cites W1989099438 @default.
• W1969376905 cites W1991897582 @default.
• W1969376905 cites W1992139495 @default.
• W1969376905 cites W1993469265 @default.
• W1969376905 cites W1993860272 @default.
• W1969376905 cites W1999192540 @default.
• W1969376905 cites W1999324782 @default.
• W1969376905 cites W2001445264 @default.
• W1969376905 cites W2003095838 @default.
• W1969376905 cites W2005932730 @default.
• W1969376905 cites W2006156000 @default.
• W1969376905 cites W2008635776 @default.
• W1969376905 cites W2009085923 @default.
• W1969376905 cites W2009263976 @default.
• W1969376905 cites W2012591289 @default.
• W1969376905 cites W2013000280 @default.
• W1969376905 cites W2014347496 @default.
• W1969376905 cites W2016724914 @default.
• W1969376905 cites W2019675370 @default.
• W1969376905 cites W2022454978 @default.
• W1969376905 cites W2030030983 @default.
• W1969376905 cites W2030762026 @default.
• W1969376905 cites W2035595723 @default.
• W1969376905 cites W2036950712 @default.
• W1969376905 cites W2037508027 @default.
• W1969376905 cites W2039032053 @default.
• W1969376905 cites W2039565302 @default.
• W1969376905 cites W2040120610 @default.
• W1969376905 cites W2041630224 @default.
• W1969376905 cites W2052287059 @default.
• W1969376905 cites W2055668701 @default.
• W1969376905 cites W2057511938 @default.
• W1969376905 cites W2058039912 @default.
• W1969376905 cites W2061178802 @default.
• W1969376905 cites W2062356105 @default.
• W1969376905 cites W2063299583 @default.
• W1969376905 cites W2069083176 @default.
• W1969376905 cites W2070631159 @default.
• W1969376905 cites W2072122037 @default.
• W1969376905 cites W2074515805 @default.
• W1969376905 cites W2075189988 @default.
• W1969376905 cites W2075710447 @default.
• W1969376905 cites W2076608370 @default.
• W1969376905 cites W2078289103 @default.
• W1969376905 cites W2078927272 @default.
• W1969376905 cites W2082700598 @default.
• W1969376905 cites W2084408143 @default.
• W1969376905 cites W2087394878 @default.
• W1969376905 cites W2087527697 @default.
• W1969376905 cites W2087846379 @default.
• W1969376905 cites W2091090950 @default.
• W1969376905 cites W2092299673 @default.
• W1969376905 cites W2093416646 @default.
• W1969376905 cites W2095452047 @default.
• W1969376905 cites W2103807574 @default.
• W1969376905 cites W2106318892 @default.
• W1969376905 cites W2106492509 @default.
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• W1969376905 cites W2127385028 @default.
• W1969376905 cites W2139419178 @default.
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• W1969376905 cites W2165657704 @default.
• W1969376905 cites W2169494038 @default.
• W1969376905 cites W2169539363 @default.
• W1969376905 cites W2950598209 @default.
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• W1969376905 doi "https://doi.org/10.1016/j.catcom.2011.09.006" @default.
• W1969376905 hasPublicationYear "2011" @default.
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