Results 11 to 20 of about 2,800 (171)

Rapid Access to Free Phenols by Photocatalytic Acceptorless Dehydrogenation of Cyclohexanones at Room Temperature [PDF]

, 2023
Phenols are ubiquitous substructures in natural products and bioactive compounds. However, practical methods for the direct construction of phenols under mild conditions remains challenging.
Wei, Shu, Lin, Min, Jia-Ni, Lin
core   +1 more source

Empirical Relationship between the Conformation and the Direction of Carbonyl Group Pyramidalization of Cyclohexanones

, 2016
A statistical investigation of precise crystal structures from the Cambridge Structural Database shows that cyclohexanones have a predictable pyramidalization of the carbonyl group in the chair conformation that depends on the puckering of the ring ...
Thomas Laube (2708566)
core   +4 more sources

One-pot and metal-free synthesis of 3-arylated-4-nitrophenols via polyfunctionalized cyclohexanones from β-nitrostyrenes

Beilstein Journal of Organic Chemistry, 2020
β-Nitrostyrenes underwent a Diels–Alder reaction with Danishefsky’s diene to afford cyclohexenes together with the corresponding hydrolyzed products, 3-arylated-5-methoxy-4-nitrocyclohexanones.
Haruyasu Asahara, Minami Hiraishi, Nagatoshi Nishiwaki   +2 more
doaj   +1 more source

A Benchmark of Density Functional Approximations For Thermochemistry and Kinetics of Hydride Reductions of Cyclohexanones

ChemistryOpen, 2019
The performance of density functionals and wavefunction methods for describing the thermodynamics and kinetics of hydride reductions of 2‐substituted cyclohexanones has been evaluated for the first time.
Xavier Deraet, Tatiana Woller, Ruben Van Lommel, Prof. Frank De Proft, Prof. Guido Verniest, Prof. Mercedes Alonso   +5 more
doaj   +1 more source

Second‐Sphere Aromatic Substitutions That Tune H‐Atom Transfer Reactivity Observed for a Series of S = 1 Nonheme FeIV=O Complexes: An Enthalpy‐Entropy Compensation Effect

Angewandte Chemie, EarlyView.
A series of oxoiron(IV) complexes was synthesized to determine the impact of electronically tuned aromatic substitution in the secondary sphere of the ligand. Despite possessing identical electronic properties, they show significant differences in C─H oxidation reactions.
Abhishek Das, Jin Xiong, Victor G. Young Jr., Yisong Guo, Marcel Swart, Lawrence Que Jr.   +5 more
wiley   +2 more sources

Synthesis of ketones from biomass-derived feedstock

Nature Communications, 2017
Conversion of biomass-derived chemicals to industrially relevant products can allow sustainable production of organic compounds. Here the authors report that aromatic ethers, which can be derived for biomass, can be converted into various cyclohexanones ...
Qinglei Meng, Minqiang Hou, Huizhen Liu, Jinliang Song, Buxing Han   +4 more
doaj   +1 more source

A Diastereoselective Synthesis of Dispiro[oxindole-cyclohexanone]pyrrolidines by 1,3-Dipolar Cycloaddition

Molecules, 2017
For the first time, arylmethylidene cyclohexanones that are non-symmetrical due to the presence of peripheral substituents were studied in 1,3-dipolar cycloaddition reactions.
Alexander Anis’kov, Irina Klochkova, Roman Tumskiy, Alevtina Yegorova   +3 more
doaj   +1 more source

Post‐Synthetic Zinc Modifications to Correct Speciation in Ti‐MWW Zeolites for Catalytic Oxidation

Angewandte Chemie, EarlyView.
Post‐synthetic Zn modifications of Ti‐MWW zeolite catalysts exhibit improved catalytic properties in the selective oxidation reaction, namely the ammoximation reaction. The origin of the beneficial effect of Zn is related via an array of spectroscopic and microscopic techniques to the modification of extra‐framework TiO2 and TiOx clusters and the ...
Christoph J. Kaul, Lukas Lätsch, Alexander V. Yakimov, Milivoj Plodinec, Xing Huang, Trees De Baerdemaeker, Jaroslaw Mormul, Peter Oechsle, Andrei‐Nicolae Parvulescu, J. Henrique Teles, Christophe Copéret   +10 more
wiley   +2 more sources

Modulating Local Coordination in Single‐Atom Catalysts: From Fundamental Concepts to Emerging Breakthroughs in Electrocatalysis

Angewandte Chemie, EarlyView.
This review summarizes atomic‐level design strategies for single‐atom catalysts, emphasizing modulation of the local coordination environment, active‐site geometry, and metal‐support interactions to optimize catalytic activity and stability in electrocatalytic energy conversion applications.
Ashwani Kumar, Harun Tüysüz
wiley   +2 more sources

Cyclohexanones from and

Natural Product Communications, 2009
The phytochemical study of Mimulus glabratus A. Gray allowed the isolation of two cyclohexenones: the new compound 6-chlorohalleridone 1 and halleridone 2.
Marisa Piovano, Juan Garbarino, Lamberto Tomassini, Marcello Nicoletti   +3 more
doaj   +1 more source