The first use of porphyrins as catalysts in cross-coupling reactions: a water-soluble palladium complex with a porphyrin ligand as an efficient catalyst precursor for the Suzuki–Miyaura reaction in aqueous media under aerobic conditions

Consistent force field for metalloporphyrins

Molecular mechanics (MM) calculations to analyze the puckering of metalloporphyrins isolated and adsorpted on a graphite layer (0001) as a function of metal ion size and the peripheral substitution are presented. The Consistent Force Field (CFF) program was used with new parameters for metalloporphyrins, which included an out-of-plane bending function. Normal-coordinate Structural Decomposition (NSD) analysis was performed on the equilibrium structures obtained by MM calculations. The conformers were also stereochemically characterized and compared with available experimental data and with conformers obtained in a previous MM study.

The synthesis of some perhydrobenzimidazolinium salts and their application in pd-carbene catalyzed heck and suzuki reactions

Novel 1,3-dialkylperhydrobenzimidazolinium chloride salts were prepared as precursors of N-heterocyclic carbenes 3a-e by reacting N,N'-dialkylcyclohexandiamine, triethyl orthoformate and ammonium chloride. The salts were characterized spectroscopically and the complexes formed in situ from Pd(OAc)2 and 3 have been tested as catalysts in homogenous Heck and Suzuki reactions.