Results 21 to 30 of about 35,479 (263)

Hydrothermal Synthesis of WO3·0.33H2O Nanorod Bundles as a Highly Sensitive Cyclohexene Sensor

open access: yesSensors, 2019
In this paper, WO3·0.33H2O nanorods were prepared through a simple hydrothermal method using p-aminobenzoic acid (PABA) as an auxiliary reagent.
Xiaofei Liu   +3 more
doaj   +1 more source

Selective Heck Arylation of Cyclohexene with Homogeneous and Heterogeneous Palladium Catalysts

open access: yesMolecules, 2010
Palladium catalysts containing Pd(II) supported on Al2O3 and alumina-based mixed oxides, Al2O3-ZrO2, Al2O3-CeO2, and Al2O3-Fe2O3, are very effective in the Heck coupling of iodobenzene with cyclohexene in DMF solution.
Ewa Mieczyńska, Anna M. Trzeciak
doaj   +1 more source

Experimental and Theoretical Study on Crown Ether-Appended-Fe(III) Porphyrin Complexes and Catalytic Oxidation Cyclohexene with O2

open access: yesMolecules, 2023
Modifying non-precious metal porphyrins at the meso-position is sufficient to further improve the ability to activate O2 and the selectivity of the corresponding redox products.
Xiaodong Li   +4 more
doaj   +1 more source

Catalyzed Oxidation of Cyclohexene and Cyclooctene with First Row Transition etallophthalocyanines [PDF]

open access: yesIranian Journal of Chemistry & Chemical Engineering, 2006
First row transition metal complexes of phthalocyanine are employed as catalysts for the oxidation of cyclohexene and cyclooctene using iodosylbenzene and pentafluoroiodosyl benzene. The catalysis was performed in dichloromethane: methanol:water (80:18:2)
Mahtab Piroozmand   +2 more
doaj  

Shape-controlled nanostructured MoO3/CeO2 catalysts for selective cyclohexene epoxidation

open access: yesCatalysis Communications, 2022
This study reported a vital role of CeO2 shape on the structure-activity properties of MoOx/CeO2 catalysts for cyclohexene epoxidation. Uniform dispersion of MoOx on the surface of shape-controlled CeO2 nanocubes (average particle size: 23.5 nm) and ...
Putla Sudarsanam   +2 more
doaj   +1 more source

One-pot multi-reaction processes: synthesis of natural products and drug-like scaffolds [PDF]

open access: yes, 2014
One-pot multi-reaction processes involving Overman rearrangements, metathesis cyclizations, and Diels–Alder reactions have been developed for the rapid and efficient synthesis of amino-substituted carbocyclic and heterocyclic compounds.
Calder, Ewen D.D.   +2 more
core   +1 more source

Mesoporous Co3O4 as a New Catalyst for Allylic Oxidation of Cyclohexene

open access: yesBulletin of Chemical Reaction Engineering & Catalysis, 2019
Mesoporous cobalt oxide was investigated for the liquid phase oxidation of cyclohexene using tertiobutylhydroperoxide (TBHP) as an oxidant. The results were compared with several series of supported cobalt catalysts to study the influence of the cobalt ...
Hajer Azzi   +3 more
doaj   +1 more source

Modulation of the Activity of Gold Clusters Immobilized on Functionalized Mesoporous Materials in the Oxidation of Cyclohexene via the Functional Group. The Case of Aminopropyl Moiety

open access: yesMolecules, 2020
Gold nanoclusters and isolated gold atoms have been produced in a two-liquid phase procedure that involves a solution of gold in aqua regia and rosemary essential oil as organic layer.
Ana Mato   +4 more
doaj   +1 more source

Halide Bond Assisted Double Desymmetrization of Meso‐Dicarboxylic Acids with Symmetrical Olefins via Asymmetric Halogenation

open access: yesAngewandte Chemie, EarlyView.
This work demonstrates a double desymmetrization of meso‐dicarboxylic acids with symmetrical olefins, constructing complex chiral lactones with six stereocenters in one step. Unexpectedly, the halide bond was found to be crucial in achieving high stereoselectivity.
Qingyu Zhang   +3 more
wiley   +2 more sources

Stereodivergent Synthesis of Three Contiguous Stereogenic Centers by Cu/Ir‐Catalyzed Borylallylation

open access: yesAngewandte Chemie, EarlyView.
An alkene borylallylation strategy enabled by cooperative Cu/Ir‐catalysis has been uncovered for accessing three contiguous stereogenic centres. This strategy is notable given the inherent challenges of constructing molecules with multiple stereocenters while maintaining high selectivity bearing diverse functional groups.
Suman Das   +2 more
wiley   +2 more sources

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