Results 51 to 60 of about 17,373 (214)

Strong hyperconjugative interactions limit solvent and substituent influence on conformational equilibrium: the case of cis-2-halocyclohexylamines

Beilstein Journal of Organic Chemistry, 2019
The presence of strong stereoelectronic interactions involving the substituents in cis-2-substituted cyclohexanes may lead to results different from those expected. In this work, we studied the conformational behavior of cis-2-fluoro- (F), cis-2-chloro- (
Camila B. Francisco, Cleverton S. Fernandes, Ulisses Z. de Melo, Roberto Rittner, Gisele F. Gauze, Ernani A. Basso   +5 more
doaj   +1 more source

A Comparative Study of the Catalytic Behaviour of Alkoxy-1,3,5-Triazapentadiene Copper(II) Complexes in Cyclohexane Oxidation

Inorganics, 2019
The mononuclear copper complexes [Cu{NH=C(OR)NC(OR)=NH}2] with alkoxy-1,3,5-triazapentadiene ligands that have different substituents (R = Me (1), Et (2), nPr (3), iPr (4), CH2CH2OCH3 (5)) were prepared, characterized (including the single crystal X-ray ...
Oksana V. Nesterova, Maximilian N. Kopylovich, Dmytro S. Nesterov   +2 more
doaj   +1 more source

Janus face aspect of all-cis 1,2,3,4,5,6-hexafluorocyclohexane dictates remarkable anion and cation interactions in the gas phase [PDF]

, 2016
The authors acknowledge support in the form of NSERC (Canada) Discovery Grants to EF, WSH, and TBM and an EPSRC (UK) responsive mode grant to DO’H and NSK is gratefully acknowledged.Experiments have been carried out in which electrospray ionization has ...
Featherstone, Joshua, Fillion, Eric, Hopkins, W. Scott, Keddie, Neil Steven, Lecours, Michael, Marta, Rick, McMahon, Terrance, O'Hagan, David, Steinmetz, Vincent, Ziegler, Blake   +9 more
core   +3 more sources

COMPOSITION AND STRUCTURE OF RESIN COMPONENTS OF LIGHT OIL AND HEAVY OILS

Известия Томского политехнического университета: Инжиниринг георесурсов, 2019
The relevance of the work is caused by the need to gather and summarize the information on composition and structure of resin components of oils of different chemical nature, since the structural characteristics of resins have a significant impact on the
Natalia N. Gerasimova, Tatyana V. Cheshkova, Evgenia B. Goluhskova, Татyana А. Sagachenko, Raisa S. Min   +4 more
doaj   +1 more source

Kinetic modeling of detonation and effects of negative temperature coefficient

, 2016
The kinetic modeling and simulation of reactive flows, especially for those with detonation, are further investigated. From the theoretical side, a new set of hydrodynamic equations are deduced, where the viscous stress tensor and heat flux are replaced ...
Lin, Chuandong, Xu, Aiguo, Zhang, Guangcai, Zhang, Yudong, Zhu, Chengmin   +4 more
core   +1 more source

Effect of aging on the physical, chemical and dielectric properties of dodecylbenzene [PDF]

, 2016
High voltage transformers and cables form integral parts of the electrical power distribution network and therefore their reliable operation is crucial to preventing costly outages.
Hosier, Ian, Koilraj, Jim, Vaughan, Alun
core   +1 more source

Biodegradation of alkyl branched aromatic alkanoic naphthenic acids by Pseudomonas putida KT2440 [PDF]

, 2012
The majority of the world's crude oil reserves consist of highly biodegraded heavy and super heavy crude oils and oil sands that have not yet been fully exploited.
Beam, Ben E. Smith, Corinne Whitby, de Waard, Del Rio, Eggink, Franklin, Gilbert, Head, Headley, Jimenez, Johnson, Johnson, Nelson, Olivera, Quagraine, Richard J. Johnson, Rontani, Rowland, Rowland, Rowland, Sambrook, Siddique, Smith, Steven J. Rowland, Van Der Meer, Whitby, Worsey, Yang   +28 more
core   +1 more source

Oxidative Coupling of ?,? - Di(cyclopentadienyl)alkyl-diides

CHIMIA, 1991
The CuII-induced oxidative coupling of ?,?-di(cyclopentadienyl)alkyl-diides 6 (n = 2 to 5) – as well as of 1,1,2,2-tetramethyl derivatives 10 and 13 of 6a (n = 2) – has been investigated in view of pertinent questions concerning the 'coupling ...
Shaochun You, Matthias Gubler, Markus Neuenschwander   +2 more
doaj   +2 more sources

Asymmetric transformations involving 1,2-diarbonyl compounds as pronucleophiles

, 2012
International audienceThis article concentrates on the versatile nucleophilic reactivity of 1,2-dicarbonyl compounds in various asymmetric transformations. Although underexploited in comparison to their 1,3-dicarbonyl homologues, the presence of adjacent
Bonne, Damien, Raimondi, Wilfried, Rodriguez, Jean   +2 more
core   +3 more sources

Saturated and aromatic compounds of highly paraffinic oil and organic deposit

Известия Томского политехнического университета: Инжиниринг георесурсов, 2019
The urgency of the discussed issue is caused by the necessity to obtain the detailed information on the content and composition of hydrocarbons and heteroatomic components in high-paraffinic oils and the asfalto-resin-parafin deposits formed of the ...
Natalia Gerasimova, Elena Kovalenko
doaj   +2 more sources