40686-71-3Relevant academic research and scientific papers
BRIDGED METALLOCENE COMPLEX FOR OLEFIN POLYMERIZATION
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Page/Page column 20, (2015/02/25)
The invention relates to a metallocene complex according to formula (1) M is a metal selected from lanthanides or transition metals from group 3, 4, 5 or 6 of the Periodic System of the Elements, Q is an anionic ligand to M, k is the number of Q groups an
Bridged metallocene complex for olefin polymerization
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Paragraph 0081; 0082, (2015/03/03)
The invention relates to a metallocene complex according to formula 1 wherein M is a metal selected from lanthanides or transition metals from group 3, 4, 5 or 6 of the Periodic System of the Elements, Q is an anionic ligand to M, X is a cyclic bridging g
Copper-catalyzed N- tert -butylation of aromatic amines under mild conditions using tert -butyl 2,2,2-trichloroacetimidate
Cran, John W.,Vidhani, Dinesh V.,Krafft, Marie E.
, p. 1550 - 1554 (2014/07/08)
A variety of aromatic amines have been found to expediently undergo copper-catalyzed N-tert-butylation in the presence of tert-butyl 2,2,2-trichloroactimidate at room temperature. Georg Thieme Verlag Stuttgart New York.
Iridium complexes of bulky CCC-pincer N-heterocyclic carbene ligands: Steric control of coordination number and catalytic alkene isomerization
Chianese, Anthony R.,Shaner, Sarah E.,Tendler, Jennifer A.,Pudalov, David M.,Shopov, Dimitar Y.,Kim, Daniel,Rogers, Scott L.,Mo, Allen
, p. 7359 - 7367 (2013/01/15)
Three new iridium complexes of meta-phenylene-bridged bis-N-heterocyclic carbene CCC-pincer ligands were synthesized and characterized. For a pincer ligand with 2,6-diisopropylphenyl N-substituents, a six-coordinate iridium(III) complex of the formula Ir(CCC)HCl(MeCN) was formed. In contrast, ligands with t-butyl or adamantyl N-substituents gave five-coordinate iridium(III) complexes of the formula Ir(CCC)HCl. These iridium complexes, along with two previously described iridium complexes, were tested for activity in the catalytic transfer-dehydrogenation of n-octane at 150 °C. The new complexes were inactive for this reaction, while two previously reported catalysts were modestly active: a mesityl-substituted derivative gave 12 turnovers, and a 3,5-di-t-butylphenyl-substituted variant gave 10 turnovers. In contrast, these complexes were shown to be highly active catalysts for the isomerization of terminal alkenes, under conditions much milder than those required for transfer-dehydrogenation.
Palladium-catalyzed sp3 C-H activation of simple alkyl groups: Direct preparation of indoline derivatives from N-alkyl-2-bromoanilines
Watanabe, Toshiaki,Oishi, Shinya,Fujii, Nobutaka,Ohno, Hiroaki
supporting information; experimental part, p. 1759 - 1762 (2009/04/12)
The sp3 C-H activation of a simple alkyl group catalyzed by palladium(O) provides a novel and convenient strategy for the synthesis of various indolines from simple precursors, such as N-alkyl-2-bromoanilines. This study demonstrates that assisting moieties In the substrate such as a pyridine or quaternary carbon are not always necessary for sp3 C-H activation.
