SEARCH

SEARCH BY CITATION

Keywords:

  • biomass;
  • decarbonylation;
  • decarboxylation;
  • fatty acids;
  • IR spectroscopy;
  • supported catalysts

Microalgae to green diesel oils The mechanism of the catalytic reduction of palmitic acid to n-pentadecane at 260 °C in the presence of hydrogen over catalysts combining multiple functions has been explored by C. Zhao, J. A. Lercher, et al. in their Full Paper on page 4732 ff. A new redundancy catalysis route has been established on the surface of Ni/ZrO2 in the cascade hydrodeoxygenation reaction.

Organocatalysis

In their Concept article on page 4664 ff., A. Studer et al. document the great potential of oxidative carbene catalysis in synthesis. First reports on oxidative carbene catalysis appeared more than 30 years ago. The problem in this fast growing field has been the identification of mild oxidants that are compatible with the carbene catalyst and that show high functional-group compatibility. Both inorganic and organic oxidants have been studied.

  • thumbnail image

Supramolecular Chemistry

A unique anion-templated reversible switching between fac and mer isomers in tris(2,2′-bipyridine)iron(II) complexes, the ligands of which are substituted at the 5-position with various peptides of different lengths and sequences, has been achieved. The remote stereocontrol at the FeII center by a domino-type chiral information transfer along an achiral peptide main-chain was observed even over 3 nm (50 bond lengths), which is the longest distance reported so far for the remote stereocontrol of the metal-centered chirality. For more details, see the Communication by E. Yashima et al. on page 4680 ff.

  • thumbnail image

Reaction Mechanisms

In their Full Paper on page 4724 ff., N. N. Nair and co-workers report on an ab initio molecular dynamics study of the Wacker oxidation of ethane in water. The results show that the rate-determining step of the process features isomerization by ligand rotation, following outer-sphere hydroxypalladation.

  • thumbnail image