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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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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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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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.
Romanus Wille +3 more
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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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General method for prediction of thermal conductivity for well-characterized hydrocarbon mixtures and fuels up to extreme conditions using entropy scaling [PDF]
, 2019 A general and efficient technique is developed to predict the thermal conductivity of well-characterized hydrocarbon mixtures, rocket propellant (RP) fuels, and jet fuels up to high temperatures and high pressures (HTHP).
Akhmedova-Azizova +72 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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Synthesis of chiral cyclohexanes and carbasugars by 6-exo-dig radical cyclisation reactions
Beilstein Journal of Organic Chemistry, 2008 Treatment of 5-(tert-butyldimethylsilyl)-2,3-O-isopropylidene-D-ribose with lithium acetylides gave mixtures of syn- and anti-alkynols 2a–2c which were separated following protection as methoxymethyl ethers.
Rajeev K. Shrivastava +4 more
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Plants, 2021 Human pancreatic tumor cells have an intrinsic ability to tolerate nutrition starvation and survive in the hypovascular tumor microenvironment, the phenomenon termed as “austerity”.
Sijia Sun +9 more
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