全部文献期刊学位论文会议报纸专利标准年鉴图书|学者科研项目
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作者:Rajeev K Shrivastava , Elise Maudru , Gurdial Singh ...
来源:[J].Beilstein Journal of Organic Chemistry(IF 2.801), 2008, Vol.4 (1), pp.43DOAJ
摘要:... These were converted to the corresponding iodides which underwent 6- exo - dig radical cyclisation to afford chiral cyclohexanes and carbasugars. Oxidation of the primary alcohols 6a– b gave the corresponding aldehydes which on treatment with Grignard reagents afforded a m...
来源:[J].Beilstein Journal of Organic Chemistry(IF 2.801), 2008, Vol.4 (1)DOAJ
摘要:... These were converted to the corresponding iodides which underwent 6- exo - dig radical cyclisation to afford chiral cyclohexanes and carbasugars. Oxidation of the primary alcohols 6a– b gave the corresponding aldehydes which on treatment with Grignard reagents afforded a m...
作者:Gillian MacKinnon , Henry J. Duncan
来源:[J].Chemosphere(IF 3.137), 2013, Vol.90 (3), pp.952-957Elsevier
摘要:... There were also low levels of toluene, branched cyclohexanes (methyl-, to butylcyclohexane) and alkenes. Of particular interest were branched cyclohexanes as little work has previously been reported on these compounds. To explain the phytotoxic effect of the volatile fracti...
作者:I. S. Akhrem , S. V. Vitt , I. M. Churilova ...
来源:[J].Russian Chemical Bulletin(IF 0.423), 1999, Vol.48 (12), pp.2279-2284Springer
摘要:Abstract(#br)Cyclopentane is converted into a mixture of cyclohexanes, decalins, and adamantanes (and isomeric cycloalkanes) in overall yields of 18–31% (w/w) under the action of superelectrophilic complex CBr 4 ·2AlBr 3 either in CH 2 X 2 (X=Br, Cl) or without a solvent at...
作者:Ferdinando Taddei , Erich Kleinpeter
来源:[J].Journal of Molecular Structure: THEOCHEM(IF 1.371), 2005, Vol.718 (1), pp.141-151Elsevier
摘要:Abstract(#br)The conformational equilibria of the cis / trans isomers of some 1,4-di-substituted cyclohexanes (X=OH, OMe, Me, OCOCH 3 , OCOC(CH 3 ) 3 , OCOCCl 3 , OCOCF 3 ) were calculated at several levels of theory; the best correlation between calculated and experimentally av...
作者:Fujia Wu , Andrew P. Kelley , Chung K. Law
来源:[J].Combustion and Flame(IF 3.599), 2012, Vol.159 (4), pp.1417-1425Elsevier
摘要:Abstract(#br)The propagation speeds of expanding spherical flames of cyclohexane, methylcyclohexane and ethylcyclohexane in mixtures of oxygen/inert were measured in a heated, dual-chamber vessel, with the corresponding laminar flame speeds extracted from them through nonlin...
作者:Ferdinando Taddei , Erich Kleinpeter
来源:[J].Journal of Molecular Structure: THEOCHEM(IF 1.371), 2004, Vol.683 (1), pp.29-41Elsevier
摘要:Abstract(#br)The relative energy of conformers, Δ E , of monosubstituted cyclohexanes with OR (R=Me, Et, i -Pr and t -Bu) and R substituents (R=Me, Et, i -Pr and t -Bu) was calculated with MO ab initio theory at RHF, MP2 and QCISD levels with the 6-311G* and 6-311+G* basis s...
作者:Leo A. Paquette , Peter R. Selvaraj , Karin M. Keller ...
来源:[J].Tetrahedron(IF 2.803), 2004, Vol.61 (1), pp.231-240Elsevier
摘要:Abstract(#br)Inositol orthoesters have been developed as precursors to stereodefined hexakis polyoxygenated cyclohexanes. The objective of the study was to determine if all- trans systems could be coaxed by alkali metal ions into adopting the all- axial coordinative features. Thi...
作者:Paulo R. de Oliveira , Roberto Rittner
来源:[J].Journal of Molecular Structure(IF 1.404), 2005, Vol.743 (1), pp.69-72Elsevier
摘要:... Dipole moments and NMR data lead to the conclusion that the conformational equilibra of these 1,3-derivatives are not controlled by the solvent polarity, as is observed for the 1,2-disubstituted cyclohexanes, but are dictated by the syn -1,3-diaxial steric effect, which p...
作者:J.L. Koul , S.K. Koul , S.C. Taneja ...
来源:[J].Phytochemistry(IF 3.05), 1996, Vol.41 (4), pp.1097-1099Elsevier
摘要:Abstract(#br)Further investigation of the petrol extract of Piper cubeb yielded two new minor oxygenated cyclohexanes, (−)-rel-(2 S ,3 R ,4 R ,5 R )-2,3,4,5-tetraacetoxy-1-benzoyloxy methylcyclohex-1(6)-ene-2,3,4,5-tetrol[(−)-piperenol C] and (+)-(2 S ,3 R ,4 R ,5 R )-2,4...

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