Conformational analysis of 1,3-dithiacyclobutane: An ab initio molecular orbital studyNo abstract is available for this article.doi:10.1016/0022-2860(77)80075-6James KaoElsevier B.V.Journal of Molecular Structure
ChemInform Abstract: Conformational Analysis of trans‐2,6‐Dithiabicyclo(5.4.0)undecane‐4‐spiro‐1′‐cyclobutane, ‐cyclopentane, and ‐cyclohexane by 1H and 13C NMR Spectroscopystructure (organic substancesmagnetic resonance, nuclear quadrupole resonance (organic substances...
06-Conformational_Anal-3
CONFORMATIONAL ANALYSIS. I. THE RELATIVE SIZE OF METHYL AND METHYL-d$sub 3$ GROUPS. The transformations of the stereoisomeric 1-methyl-3-ethylcyclobutanes were studied in the range 150鈥 320掳 on the catalysts: Pt/C, Pd/C, Rh/C, and Ir/C. On all of the catalysts the hydrogenolysis pr...
Alkanes Nomenclature,ConformationalAnalysis,andanIntroductiontoSynthesis Alkanes saturatedaliphatichydrocarbons paraffins generalformulaCnH2n+2 acyclichydrocarbons Sourcesofmethane majorconstituentofnaturalgas(97%) “firedamp”ofcoalmines “marshgas” productofanaerobicplantdecay Cycloalkanes Singleringcycloalkaneshavethe...
Structural and conformational analysisCorrelation between electronegativity of the susbtituent and conformational stabilityThe structures of numerous 1,1-disubstituted silacyclobutanes have been investigated thoroughly, but none of the monosubstituted representatives have been studied as yet. In the present ...
correlation between electronegativity of the susbtituent adn conformational stabilityThe structures of numerous 1,1-disubstituted silacyclobutanes have been investigated thoroughly, but none of the monosubstituted silacyclobutanes have investigated thoroughly, but none of the mono-substituted representatives ...
However, kinetic investigations on the hydrolysis of spiroalkane-1′,5-barbiturates and the analysis of the C=O stretching vibrations showed the fivefold increase of the hydrolysis rate constants and decrease of the conjugation in the pyrimidine ring for the spirocyclobutane-1′,5-barbituric acid....
Guida. Comprehensive conformational analysis of the four- to twelve- membered ring cycloalkanes: Identification of the complete set of interconversion pathways on the MM2 potential energy hypersurface. Journal of the American Chemical Society, (115):2107-2119, 1993....
The conformation of the sugars and glycosidic torsion angles are S type and syn , respectively. The cyclobutane ring and pyrimidines are puckered. In addition, other conformations that exist in equilibrium with the first are found. It is concluded that the cyclobutane-pyrimidine system is rigid, ...