Results 51 to 60 of about 13,993 (189)

Synthesis of conformationally constrained analogues of BRL32872 : Determination of stereochemistry and related pharmacological properties

, 1997
2-Azabicyclo[2.2.2]octane derivatives have been used as conformationally constrained structure of BRL-32872, in order to investigate the effect of molecular flexibility towards class III and class IV antiarrhythmic properties.
Faivre, J.-F., Souchet, M., Rouanet, S., Bril, A., Forest, M.-C., Cheval, B., Gerhard, U., Smith, R.J.   +7 more
core   +2 more sources

THE STEREOCHEMISTRY AND CONFORMATION OF LIGNIN AS JUDGED BY X-RAY CRYSTALLOGRAPHIC INVESTIGATIONS OF LIGNIN MODEL COMPOUNDS: ARYLGLYCEROL BETA-GUAIACYL ETHERS

BioResources, 2007
The conformations of a variety of crystalline lignin models representing different diastereomeric forms of structural elements in lignin of the arylglycerol -guaiacyl ether type have been studied using X-ray crystallography.
Jim Parkås, Knut Lundquist, Vratislav Langer   +2 more
doaj  

Stereoisomere Thiodilactylsäuren [PDF]

Berichte der deutschen chemischen Gesellschaft, 1896
n ...
openaire   +2 more sources

Comparative Study Related to Cardiovascular Safety between Bupivacaine (S75-R25) and Ropivacaine in Brachial Plexus Block

Brazilian Journal of Anesthesiology, 2013
Background and objectives Bupivacaine is a first choice for regional anesthesia considering its effectiveness, long duration and less motor blockade.
Adilson Hamaji, Marcelo Rosa de Rezende, Rames Mattar, Jr., Joaquim Edson Vieira, José Otávio Costa Auler, Jr.   +4 more
doaj   +1 more source

Automated Identification and Classification of Stereochemistry: Chirality and Double Bond Stereoisomerism

, 2013
Stereoisomers have the same molecular formula and the same atom connectivity and their existence can be related to the presence of different three-dimensional (3D) arrangements.
Teixeira, Ana L., Leal, João P., Falcao, Andre O.   +2 more
core  

THE DISCOVERY OF TETRAHEDRAL CARBON: CONTRIBUTIONS OF PATERNO' AND CANNIZZARO. *

, 1997
Although the discovery of stereoisomerism is due to Van't Hoff and Le Bel (1875), the hypothesis of tetrahedral carbon, on which is actually based the stereoisomerism, is older.
Giorgio Montaudo
core  

Chemical Graphs. XXXII. Constitutional and Steric Isomers of Substituted Cycloalkanes [PDF]

, 1978
Polya's theorem was applied to cycloalkanes in order to obtain the numbers of stereoisomers, enantiomers, and constitutional isomers of substituted derivatives.
Balaban, A. T.
core  

Alkali cation-π interactions in aqueous systems, modulating supramolecular stereoisomerism of nanoscopic metal-organic capsules

Nature Communications
Contrary to common chemical intuition, cation-π interactions can persist in polar, aqueous reaction solutions, rather than in dry non-coordinative solvent systems.
Paul Wix, Swetanshu Tandon, Sebastien Vaesen, Kadri Karimu, Jennifer S. Mathieson, Kane Esien, Solveig Felton, Graeme W. Watson, Wolfgang Schmitt   +8 more
doaj   +1 more source

Stereoisomeric engineering mediated zinc metal electrodeposition: Critical balance of solvation and adsorption capability

Advanced Powder Materials
The exceptional electrochemical performance of zinc anodes is frequently impeded by inadequate deposition kinetics and interfacial chemistry. Herein, we introduce the stereoisomerism to inform the balanced selection of electrolyte additives, taking into ...
Wen Liu, Qiwen Zhao, Ruheng Jiang, Xuyan Ni, Tiancheng You, Canglong Li, Yanzi Deng, Bingang Xu, Yuejiao Chen, Libao Chen   +9 more
doaj   +1 more source

Stereoisomere Menthole [PDF]

Journal für Praktische Chemie, 1905
n ...
openaire   +2 more sources