Results 11 to 20 of about 17,650 (294)
Living supramolecular polymerization of fluorinated cyclohexanes
Nature Communications, 2021 Living supramolecular polymerization can produce precise covalent polymers, but the scope of monomers is still narrow. Here the authors show a molecular platform for living supramolecular polymerization that is based on the unique structure of all-cis 1 ...
Oleksandr Shyshov +8 more
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Brazilian Journal of Anesthesiology, 2023 Background: Up to 60% of pediatric surgical patients develop high levels of preoperative anxiety. This study compared the effects of oral combinations of midazolam and ketamine with oral midazolam alone for pediatric preanesthetic medication.
Get..lio Rodrigues de Oliveira Filho +3 more
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Novel Ring Systems: Spiro[Cycloalkane] Derivatives of Triazolo- and Tetrazolo-Pyridazines
Molecules, 2021 In orderto synthesize new pyridazine derivatives anellated with different nitrogen heterocyclic moieties, spiro[cycloalkane]pyridazinones were transformed into the corresponding thioxo derivatives via a reaction with phosphorus pentasulfide. The reaction
Csilla Sepsey Für +6 more
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Trisubstituted Cyclohexanes / Trisubstituted Cyclohexanes
Zeitschrift für Naturforschung B, 1985 C-Tertiarv vinylketones or the corresponding masked vinylketone derivatives react with pyrrolidin-2-one in the system sodium hydride.dimethylsulfoxide to substituted cyclohexanes of the 1,3.5- and sometimes additionally of the 1,2.4-type. Only acetophenone Mannich bases bearing a p-hydroxy or a dimethylamino group failed in cyclization.
Hans Mohrle +3 more
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Entropy scaling based viscosity predictions for hydrocarbon mixtures and diesel fuels up to extreme conditions [PDF]
, 2019 An entropy scaling based technique using the Perturbed-Chain Statistical Associating Fluid Theory is described for predicting the viscosity of hydrocarbon mixtures and diesel fuels up to high temperatures and high pressures. The compounds found in diesel
Gavaises, M. +4 more
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CHIMIA, 2018 Single crystal X-ray diffraction is a powerful method to unambiguously characterize the structure of molecules with atomic resolution.
Cornelius Gropp, Nils Trapp
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Highly alkylated cyclohexanes. X-Ray crystal structures, force-field calculations, and conformations of cis/trans-1,4-disubstituted cyclohexane isomers [PDF]
, 1988 The structures of mesylated cis- and trans-tetramethylshisool cis- 2 and trans-2 have been elucidated by single-crystal X-ray techniques. In cis-2 the isopropenyl group adopts an axial position in the crystal, and the structural data obtained are in good
Burkert +5 more
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Molecules, 2020 Conformational analysis of Si-mono- and Si,Si-disubstituted silacyclohexanes as well as their analogues with a heteroatom(s) in the ring is reviewed with the focus on the recent results.
Bagrat A. Shainyan
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Polar alicyclic rings: synthesis and structure of all cis-1,2,3,4-tetrafluorocyclopentane [PDF]
, 2016 The authors are grateful to the Chinese Scholarship Council for Studentship support (ZF), to EPSRC for financial support and to the EPSRC National Mass Spectrometry Service at Swansea for analytical support.
Al-Maharik, Nawaf +4 more
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Organocatalytic Enantioselective Henry Reactions [PDF]
, 2011 This is an open access article distributed under the Creative Commons Attribution License.A large number of interesting organocatalytic enantioselective protocols have been explored and successfully applied in the last decade.
Herrera, Raquel P. +2 more
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