Results 11 to 20 of about 55,695 (341)

Complexation and Structure Elucidation of the Axial Conformers of Mono- and (±)-trans-1,2-Disubstituted Cyclohexanes by Enantiopure Alleno-Acetylenic Cage Receptors

open access: yesCHIMIA, 2018
Single crystal X-ray diffraction is a powerful method to unambiguously characterize the structure of molecules with atomic resolution.
Cornelius Gropp, Nils Trapp
doaj   +2 more sources

High-Pressure Limit and Pressure-Dependent Rate Rules for β-Scission Reaction Class of Hydroperoxyl Alkyl Hydroperoxyl Radicals (•P(OOH)2) in Normal-Alkyl Cyclohexanes Combustion [PDF]

open access: yesMolecules
Chemical kinetic studies of the β-scission reaction class of hydroperoxyl alkyl hydroperoxyl radicals (•P(OOH)2) from normal-alkyl cyclohexanes are carried out systematically through high-level ab initio calculations. Geometry optimizations and frequency
Xiaoxia Yao, Xiaoli Sun, Yifei Zhu
doaj   +2 more sources

Janus Face All-cis 1,2,4,5-tetrakis(trifluoromethyl)- and All-cis 1,2,3,4,5,6-hexakis(trifluoromethyl)- Cyclohexanes. [PDF]

open access: yesAngew Chem Int Ed Engl, 2020
We report the synthesis of all‐cis 1,2,4,5‐tetrakis (trifluoromethyl)‐ and all‐cis 1,2,3,4,5,6‐hexakis (trifluoromethyl)‐ cyclohexanes by direct hydrogenation of precursor tetrakis‐ or hexakis‐ (trifluoromethyl)benzenes. The resultant cyclohexanes have a
Yu C   +7 more
europepmc   +2 more sources

Machine learning based estimation of density of binary blends of cyclohexanes in normal alkanes [PDF]

open access: yesScientific Reports
Given the application of cycloalkanes in surrogate blends for aviation fuels, their determination of critical characteristics pertinent to fuel transportation and combustion becomes imperative.
Ali Yarahmadi, Ali Rashedi, Amin Bemani
doaj   +2 more sources

Selective hydrogenation of arenes to cyclohexanes in water catalyzed by chitin-supported ruthenium nanoparticles [PDF]

open access: yes, 2016
The selective hydrogenation of aromatic compounds to cyclohexanes was found to be promoted by chitin-supported ruthenium nanoparticles (Ru/chitin) under near-neutral, aqueous conditions without the loss of C–O/C–N linkages at benzylic positions.
Yuna Morioka   +5 more
semanticscholar   +3 more sources

Synthesis of meta-carbonyl phenols and anilines [PDF]

open access: yesNature Communications
Phenols and anilines are of extreme importance for medicinal chemistry and material science. The development of efficient approaches to prepare both compounds has thus long been a vital research topic.
Bao-Yin Zhao, Qiong Jia, Yong-Qiang Wang
doaj   +2 more sources

Multiplanar Cyclohexane Rings [PDF]

open access: bronzeNature, 1938
ON bromination, the isomeric forms of 1-carboxy-4-methylcyclohexane-1-acetic acid (m.p. 173° and 137°)1 furnished monobromo acids, which gave the corresponding hydroxy acids on being heated with aqueous sodium carbonate. Oxidation of the hydroxy acids with alkaline permanganate gave rise, however, to isomeric forms of 4-methylcyclohexane-1: 1 ...
R. D. Desai, R. F. Hunter, G. S. SAHARIA
openalex   +3 more sources

The Emergence and Properties of Selectively Fluorinated ‘Janus’ Cyclohexanes

open access: yesThe chemical record, 2023
This account describes the evolution of a research programme that started by linking fluoromethylene (−CHF−) groups along aliphatic chains and then progressing to alicyclic rings with contiguous fluorine atoms. Different stereoisomers of aliphatic chains
D. O'Hagan
semanticscholar   +1 more source

Activation of 1,2- and 1,3-Ketoamides with Thiourea Organocatalyst for the Enantioselective Domino Synthesis of Functionalized Cyclohexanes

open access: yes, 2013
International audienceSeveral reactive sites of 1,2- and 1,3-ketoamides were successively exploited in two complementary domino transformations for the synthesis of polysubstituted monocyclic or bridged bicyclic cyclohexanes, with the creation of up to ...
Wilfried Raimondi   +7 more
semanticscholar   +4 more sources

Radiolysis of Cyclohexane

open access: bronzeNippon kagaku zassi, 1960
Shin Sato, Terumi Terao, Shōji Shida
openalex   +4 more sources

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