579490-49-6Relevant academic research and scientific papers
ORGANIC CHROMIUM COMPOUND, CATALYST SYSTEM FOR OLIGOMERIZATION OF OLEFINS OR POLYMERIZATION OF EHYLENE, AND METHOD FOR PREPARING OLEFIN OLIGOMER OR POLYEHYLENE USING THE CATALYST SYSTEM
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Paragraph 0100-0103, (2017/07/31)
The present invention relates to an organic chromium compound, a catalytic system for an olefin oligomerization reaction or a polyethylene polymerization reaction, and a method for producing polyethylene or an olefin oligomer using the catalytic system. According to the present invention, the catalytic system enables the production of 1-hexene, 1-octene, and polyolefin respectively while ensuring excellent catalytic activities. Especially, the production of solid polyolefin with high selectivity is possible even with a single reaction.COPYRIGHT KIPO 2017
METAL COMPLEX CONTAINING TRIDENTATE LIGAND, AND POLYMERIZATION CATALYST COMPRISING THE SAME
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Page/Page column 14, (2010/11/28)
The present invention provides 1) a complex comprising a mono-anionic tridentate ligand, represented by the following general formula (I); 2) a polymerization catalyst composition, comprising the complex; and 3) a cis-1,4-isoprene polymer, a cis-1,4-butad
Ligands for metals as catalysts for carbon-carbon bond formation
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Page/Page column 13-14, (2008/06/13)
The present invention provides a family of novel and stable ligands which chelate with a metal to form a complex. The ligand contains a ring, particularly a phenyl group, or a hydrocarbon group which links an amino group and PR1R2, NR1R2, OR1, SR1, or AsR1R2 group such that the structure of the ligand can be stabilized.
Metal complexes for catalytic carbon-carbon bond formation
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Page/Page column 4; 12, (2010/02/15)
The present invention relates to a complex comprising a novel and stable ligand and a metal center. The ligand contains a ring, particularly a phenyl group, or a hydrocarbon group which links an amino group and PR1R2, NR1R2, OR1, SR1, or AsR1R2 group such that the structure of the ligand can be stabilized.
Catalytic carbon-carbon bond formation
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, (2008/06/13)
The present invention mainly relates to a carbon-carbon bond formation catalyzed by a complex comprising a novel and stable ligand and a metal center. The ligand uses a ring, particularly a phenyl group, or a hydrocarbon group to link an amino group and PR1R2, NR1R2, OR1, SR1, or AsR1R2 group for stabling the structure of the ligand.
Rhodium pincer complexes of 2,2′-bis(diphenylphosphino) diphenylamine
Winter, Angelika M.,Eichele, Klaus,Mack, Hans-Georg,Potuznik, Suzan,Mayer, Hermann A.,Kaska, William C.
, p. 149 - 154 (2007/10/03)
The novel pincer ligand 2,2′-bis(diphenylphosphino)diphenylamine (1) has been synthesized by treatment of 2,2′-dibromodiphenylamine with n -butyl lithium and subsequent reaction with diphenylchlorophosphine. When ligand 1 is treated with RhCl3 hydrate the dinuclear complex 1a forms which can be converted into the square planar carbonyl complex 1c upon reduction with Na/Hg in the presence of CO. Depending on the reaction conditions two different complexes were isolated when 1 reacts with [(COE)2 RhCl]2. In THF the hydrochloro complex 1b and with n-butyl lithium the COE complex 1d is generated. Interestingly, the formation of 1b represents a rare case of N-H oxidative addition to a late transition metal complex fragment. Compound 1c is observed upon reaction of the COE complex 1d with carbon monoxide. Quantum chemical calculations at different levels of theory are in good agreement with the experimental structure of 1c.
