Chain Walking in the AlCl3 Catalyzed Cationic Polymerization of α-Olefins.
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DOI: 10.1002/cplu.202200432
Abstract: Continuing efforts aimed at performing the 1-decene polymerization to low viscosity polyalphaolefins (PAO)s using a less hazardous AlCl3 catalyst than boron-based analogs, the basic mechanisms of this system were revealed in this research. In this… read more here.
Keywords: walking alcl3; chain; pao; chain walking ... See more keywords
Nondissociative chain walking as a strategy in catalytic organic synthesis
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DOI: 10.1016/j.tetlet.2019.07.029
Abstract: Abstract “Nondissociative” chain walking is a mechanism where an alkylmetal species undergoes rapid β-hydride elimination and reinsertion to move the metal center along the alkyl chain without dissociating an alkene intermediate during the migration process.… read more here.
Keywords: chain; catalytic organic; chain walking; organic synthesis ... See more keywords
Chain-Walking Polymerization of α-Olefins by α-Diimine Ni(II) Complexes: Effect of Reducing the Steric Hindrance of Ortho- and Para-Aryl Substituents on the Catalytic Behavior, Monomer Enchainment, and Polymer Properties
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DOI: 10.1021/acs.macromol.7b02242
Abstract: With Brookhart type α-diimine Ni(II) based catalysts, it is highly challenging to tune polymers branching level and branch-type distribution, which in turn strongly affects thermal and mechanical properties, through the aryl ortho-positions modification, while maintaining… read more here.
Keywords: ortho para; chain walking; polymerization;
Topology Analysis of Chain Walking Polymerized Polyethylene: An Alternative Approach for the Branching Characterization by Thermal FFF
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DOI: 10.1021/acs.macromol.9b01410
Abstract: Thermal field-flow fractionation (ThFFF) was designed to investigate the retention behavior of a series of dendritic polyethylenes synthesized using a chain walking catalyst (cwPE) with variations ... read more here.
Keywords: topology; chain walking; walking polymerized; topology analysis ... See more keywords
Chain Walking as a Strategy for Iridium-Catalyzed Migratory Amidation of Alkenyl Alcohols to Access α-Amino Ketones.
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DOI: 10.1021/jacs.2c00948
Abstract: Catalytic carbon-nitrogen bond formation in hydrocarbons is an appealing synthetic tool to access valuable nitrogen-containing compounds. Although a number of synthetic approaches have been developed to construct a bifunctional α-amino carbonyl scaffold in this realm,… read more here.
Keywords: amidation; chain walking; alkenyl alcohols; amino ... See more keywords