The present invention relates to ligands based on calixarenes, metal complexes comprising such ligands and their use as homogeneous or heterogeneous catalysts.

The present invention relates to ligands based on calixarenes, metal complexes comprising such ligands and their use as homogeneous or heterogeneous catalysts.

Novel organodiaryl selenoxides and processes for preparation thereof, and use thereof as ligand in complexes.

Provided is an organic tin-free cationic electrodeposition coating composition which does not contain organic tin compound and can sustain a superior coating curability under currently used baking conditions, and to a catalyst for the composition. A catalyst for electrodeposition coating composition containing a bismuth compound (A), wherein: the bismuth compound is a compound having a ligand prepared from a -diketone represented by Chemical Formula (1) is provided. ##STR00001##
(wherein, a plurality of R.sup.1 are the same or different from each other and represent a hydrocarbon group, and a number of total carbon atoms in two R.sup.1 is 4 or larger)

A process of converting a carbon-carbon multiple bond to a cyclopropane ring, comprising the addition of a N-alkyl-N-nitroso compound to a mixture of alkene precursor, aqueous base and Pd(II)-catalyst, with the N-alkyl-N-nitroso compound obtained directly from an alkyl amine derivative, NaNO.sub.2 and an acid via phase separation of the N-alkyl-N-nitroso compound from the aqueous phase.

Novel complexes of diphenyl selenoxides and also use thereof and methods in which the complexes are used.

Novel complexes of diphenyl selenoxides and also use thereof and methods in which the complexes are used.

Novel organodiaryl selenoxides and processes for preparation thereof, and use thereof as ligand in complexes.

The disclosure provides methods to synthesize graphene based hetero-nanostructures, the graphene based hetero-nanostructures resulting therefrom, and devices comprising the graphene based hetero-nanostructures thereof.

Provided is a method that is for producing an alcohol from an olefin compound with an improved selectivity and that enables a catalyst to be easily reused. This method for producing an alcohol comprises: reacting an olefin compound, carbon monoxide, and hydrogen molecules, using a group-9 transition metal complex as a catalyst, in an organic solvent containing at least 30 mol % of an amine compound having at least two nitrogen atoms that form a tertiary amine.