Results 101 to 110 of about 41,336 (320)

Epoxidation of cyclohexene with cyclohexyl hydroperoxide

open access: yesТонкие химические технологии
Objectives. To investigate the regularities of the process of joint production of epoxycyclohexane, cyclohexanol, and cyclohexanone using the cyclohexene epoxidation reaction with cyclohexyl hydroperoxide in the presence of an ammonium paramolybdate ...
E. A. Kurganova   +8 more
doaj   +1 more source

Chemical Bonds Containing Hydrogen: Choices for Hydrogen Carriers and Catalysts

open access: yesAngewandte Chemie, EarlyView.
Hydrogen carriers utilizing B─H, C─H, N─H, and O─H bonds are evaluated for their potential in hydrogen storage and release. Key candidates such as methanol, ammonia, and formic acid are examined with a focus on critical factors influencing performance, including the nature of chemical bonds, reaction pathways, and catalytic processes.
James Cashel   +9 more
wiley   +2 more sources

Lewis acid‐driven interlayer shifting in sub‐nm 2D covalent organic framework membranes for hydrogen purification

open access: yesAIChE Journal, EarlyView.
Abstract Covalent organic framework (COF) membranes are promising for eco‐friendly separations, but precise control of pore size at the angstrom level has been challenging, limiting their application in gas separation. This study introduces a pore redistribution method to reduce pore size to the sub‐nanometer range in single‐phase COF membranes.
Li Chen   +5 more
wiley   +1 more source

Thermodynamic study of the solubility of some sulfonamides in cyclohexane

open access: yesJournal of the Brazilian Chemical Society, 2003
The thermodynamic functions Gibbs energy, enthalpy and entropy of solution in cyclohexane, were evaluated from solubility data for a group of sulfonamides over the temperature range from 20.0 to 40.0 °C.
Martínez Fleming   +2 more
doaj  

Synthesis of Benzodithieno[5.5.5.6]fenestranes: Unexpected Epimerization and Regiochemical Outcomes

open access: yesAsian Journal of Organic Chemistry, Accepted Article.
Isomeric [5.5.5.6]fenestranes bearing one benzene and two thiophene rings annulated to all‐cis‐ and cis,cis,trans,cis‐fenestrane cores are presented. The synthesis route previously established for the corresponding tribenzo[5.5.5.6]fenestranes includes twofold cyclodehydration of the stereoisomeric spiro[cyclohexane‐1,2’‐indane]‐1',3'‐diol ...
Dietmar Kuck   +5 more
wiley   +1 more source

Development of an Automated Workflow for Screening the Assembly and Host–Guest Behavior of Metal‐Organic Cages Towards Accelerated Discovery

open access: yesAngewandte Chemie, EarlyView.
An automated experimental workflow to accelerate the discovery of metal‐organic cages (MOCs), which is often hindered by slow, manual approaches, has been developed. Automation of the synthesis, characterization, and analysis, is supported by computational modelling to rationalize the experimental outcomes, and development of a host–guest assay ...
Annabel R. Basford   +8 more
wiley   +2 more sources

Thiophene Containing Polycyclic Aromatic Hydrocarbon Monkey Saddles

open access: yesAsian Journal of Organic Chemistry, Accepted Article.
Negatively curved chiral polycyclic aromatic hydrocarbons (PAHs) gained a lot of interest in research over the past years. By replacing phenyl against thiophene units in a monkey saddle shaped PAH, it was possible to further tune the photophysical and electrochemical properties as well as influence the racemization barrier of these three‐dimensional ...
Tobias Kirschbaum   +6 more
wiley   +1 more source

The highly selective oxidation of cyclohexane to cyclohexanone and cyclohexanol over VAlPO4 berlinite by oxygen under atmospheric pressure

open access: yesChemistry Central Journal, 2018
Background The oxidation of cyclohexane under mild conditions occupies an important position in the chemical industry. A few soluble transition metals were widely used as homogeneous catalysts in the industrial oxidation of cyclohexane.
Yun Hong, Dalei Sun, Yanxiong Fang
doaj   +1 more source

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