Porphyrin functionalization strategies are gradually changing by direct functionalizations through CH bond cleavage with transition-metal catalysts. In their Communication on page 64 ff., A. Osuka et al. succeeded in palladium-catalyzed direct arylation of meso-formyl porphyrin with aryl bromides that provided β-monoarylated meso-formyl porphyrins regioselectively. The β-arylated formyl porphyrin could be converted to a twisted meso–meso vinylene-bridged diporphyrin by McMurry coupling.
A novel matrix system, that is, functional single-walled carbon nanohorns (SWNHs), for mass spectrometric analysis of small biomolecules including peptides, amino acids, fatty acids, and ATP is reported by H. Ju, Z. Cai et al. in their Full Paper on page 102 ff. By combining the advantages of SWNHs with the specificity of aptamers and the good analytical performance of negative ion mode, a selective and sensitive method was developed for the analysis of ATP in complex biological samples.
A gentle, seedless, and surfactant-free method for the preparation of clean-surface, porous, platinum nanoparticles is described. The as-synthesized nanoparticles show higher activity than a commercial Pt/C catalyst for electrocatalytic methanol oxidation. In addition, an electrochemical method and DFT calculations were utilized to study the inhibition effects of surfactants on the catalytic activity. For more details, see the Full Paper by B. Geng et al. on page 240 ff.