trans-1,4-Dimethylcyclohexane

Trans-, 14 | 2012

Ring opening of 1,2- and 1,3-dimethylcyclohexane on iridium catalysts

The ring opening reactions of 1,2and 1,3-dimethylcyclohexane (1,2and 1,3-DMCH) have been investigated over Ir catalysts supported on Al2O3, SiO2, and TiO2. These two naphthenic molecules are used as probe reactants to investigate the different reaction paths that may occur in the treatment of diesel fuels and gasolines for the improvement of cetane numbers (CNs) and octane numbers. The CN can b...

Fungal strains as catalysts for the biotransformation of halolactones by hydrolytic dehalogenation with the dimethylcyclohexane system.

Bicyclic chloro-, bromo- and iodo-γ-lactones with dimethylcyclohexane rings were used as substrates for bioconversion by several fungal strains (Fusarium, Botrytis and Beauveria). Most of the selected microorganisms transformed these lactones by hydrolytic dehalogenation into the new compound cis-2-hydroxy-4,6-dimethyl-9-oxabicyclo[4.3.0]- nonan-8-one, mainly the (-)-isomer. When iodo-γ-lactone...

Tbit_a_465584 14..14 ++

This case study provides an in-depth analysis of Siemens' lessons learned when implementing knowledge management. For the analysis of the case-study data, we use established tools from the marketing literature, and integrate these with the change management literature. The aim is to provide a rich-yet-parsimonious conceptualisation of Siemens' lessons learned in dealing with two distinct implem...

A14 14..14

Pasco et al (pp. 322–326) investigated the role of tobacco smoking as a risk factor for major depressive disorder, using data from an Australian population-based sample of women. They found both cross-sectional and longitudinal evidence for an association between smoking and depression, particularly among heavy smokers. Using a range of brain imaging techniques, de Win et al (pp. 289–296) found...