Transition and Migration of Ziegler‐Natta Catalyst System in Propylene Polymerization. II. Comprehensive Analysis of the Extract From Polypropylene Granules With Isopropyl Alcohol/n‐Hexane
Sign Up to like & getrecommendations! Published in 2025 at "Journal of Applied Polymer Science"
DOI: 10.1002/app.57488
Abstract: Polypropylene (PP) shows potential application in energy and biomedical fields. However, the residue of the Z–N catalyst system limits its practical application. Here, the transition and migration of the Z‐N catalyst system in propylene polymerization… read more here.
Keywords: catalyst; polypropylene; catalyst system; polypropylene granules ... See more keywords
Practical Aerobic Oxidation of Alcohols: A Ligand‐Enhanced 2,2,6,6‐Tetramethylpiperidine‐1‐oxy/Manganese Nitrate Catalyst System
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DOI: 10.1002/cctc.201700710
Abstract: A highly efficient, ligand‐enhanced 2,2,6,6‐tetramethylpiperidine‐1‐oxy (TEMPO)/Mn(NO3)2 catalyst system for the aerobic oxidation of alcohols is described. From the series of coordinating ligands studied herein, 2‐picolinic acid (PyCOOH) improves the catalytic activity of TEMPO/Mn(NO3)2 remarkably. Under… read more here.
Keywords: enhanced tetramethylpiperidine; tetramethylpiperidine oxy; catalyst system; aerobic oxidation ... See more keywords
Engineered Sulfur‐Resistant Catalyst System with an Assisted Regeneration Strategy for Lean‐Burn Methane Combustion
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DOI: 10.1002/cctc.201701884
Abstract: Catalytic combustion of methane, the main component of natural gas, is a challenge under lean‐burn conditions and at low temperatures owing to sulfur poisoning of the Pd‐rich catalyst. This paper introduces a more sulfur‐resistant catalyst… read more here.
Keywords: resistant catalyst; sulfur resistant; catalyst system; catalyst ... See more keywords
Fe(NO3)3/2,3-dichloro-5,6-dicyano-1,4-benzoquinone (DDQ): An efficient catalyst system for selective oxidation of alcohols under aerobic conditions
Sign Up to like & getrecommendations! Published in 2018 at "Catalysis Communications"
DOI: 10.1016/j.catcom.2017.09.019
Abstract: Abstract A practical and efficient catalyst system for the oxidation of alcohols to carbonyl compounds using catalytic amounts of DDQ and Fe(NO 3 ) 3 with air as the environmentally benign oxidant has been developed.… read more here.
Keywords: oxidation alcohols; catalyst system; oxidation; efficient catalyst ... See more keywords
An Artificial Catalyst System for Asymmetric Dearomative Prenylation
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DOI: 10.1016/j.chempr.2018.11.015
Abstract: Recently in Nature Catalysis, You and co-workers reported a novel artificial catalyst system for asymmetric dearomative prenylation of indole derivatives. Compared with known enzymatic dearomative prenylation processes, this system features impressive generalities in substrate scope… read more here.
Keywords: system; system asymmetric; dearomative prenylation; catalyst system ... See more keywords
Lewis acid catalyst system for Claisen-Schmidt reaction under solvent free condition
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DOI: 10.1016/j.tetlet.2020.152175
Abstract: Abstract Ca(OTf)2 in combination with NBu4.BF4 was established to function as an efficient catalyst system for one-pot Claisen-Schmidt condensation under neat conditions. Substituted acetophenones and benzaldehydes were coupled in situ to afford their corresponding chalcones… read more here.
Keywords: acid catalyst; lewis acid; catalyst system; claisen schmidt ... See more keywords
Predicted Effects of Heavy Feeds on the Deactivation of a Commercial Atmospheric Residue Desulfurization Catalyst System
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DOI: 10.1021/acs.energyfuels.7b04058
Abstract: The effect of three atmospheric residual oils on the deactivation of a commercial atmospheric residue desulfurization (ARDS) catalyst system was assessed using a commercial catalyst system consisting of five catalysts loaded inside a two-reactor pilot… read more here.
Keywords: deactivation commercial; commercial atmospheric; catalyst system; atmospheric residue ... See more keywords
A Versatile Cp*Co(III)(LX) Catalyst System for Selective Intramolecular C-H Amidation Reactions.
Sign Up to like & getrecommendations! Published in 2020 at "Journal of the American Chemical Society"
DOI: 10.1021/jacs.0c04448
Abstract: Herein, we report the development of a tailored cobalt catalyst system of Cp*Co(III)(LX) toward intramolecular C-H nitrene insertion of azidoformates to afford cyclic carbamates. The cobalt complexes were easy to prepare and bench-stable, thus offering… read more here.
Keywords: system selective; catalyst system; iii catalyst; versatile iii ... See more keywords
The single Fe atoms and DDQ catalyst system for the aerobic dehydrogenation of dihydropyridines and dihydroquinazolinones
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DOI: 10.1038/s41598-025-03750-w
Abstract: Single-atom nanozymes (SAzymes) made of iron show great potential as artificial enzymes due to their consistent active sites closely resembling the active centers found in natural enzymes. They can be produced from accessible and affordable… read more here.
Keywords: single atoms; system; dihydropyridines dihydroquinazolinones; ddq catalyst ... See more keywords
A simple cobalt-based catalyst system for the controlled dehydropolymerisation of H3B·NMeH2 on the gram-scale.
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DOI: 10.1039/c9cc08864d
Abstract: A simple Co(ii)-based amine-borane dehydropolymerisation catalyst system is reported that operates at low loadings, to selectively give (H2BNMeH)n polymer on scale, with catalyst control over Mn, narrow dispersities and low residual metal content. read more here.
Keywords: dehydropolymerisation; simple cobalt; catalyst system; catalyst ... See more keywords
A highly efficient and sustainable catalyst system for terminal epoxy-carboxylic acid ring opening reactions
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DOI: 10.1039/d3gc04301k
Abstract: The nucleophilic ring opening of epoxides by carboxylic acids is an indispensable transformation for materials science and coating technologies. Due to this industrial significance, improvements in operational energy consumption and catalyst sustainability are highly desirable… read more here.
Keywords: catalyst; catalyst system; ring opening; highly efficient ... See more keywords