Reactions of metallocene niobium(III) isocyanide complexes with oxidizing reagents

Electron transfer reactions between copper(II) porphyrin complexes and various oxidizing reagents in acetonitrile.

Homogeneous electron transfer reactions of the Cu(II) complexes of 5,10,15,20-tetraphenylporphyrin (TPP) and 2,3,7,8,12,13,17,18-octaethylporphyrin (OEP) with various oxidizing reagents were spectrophotometrically investigated in acetonitrile. The reaction products were confirmed to be the pi-cation radicals of the corresponding Cu(II)-porphyrin complexes on the basis of the electronic spectra ...

Homogeneous and heterogeneous oligomerization reactions of olefins with unbridged metallocene catalysts

1-Pentene, respectively 1-hexene, were reacted with 13 homogeneous metallocene catalysts to give linear oligomerization products, predominantly dimers, with selectivities above 90%. The product distributions of the codimerization reactions of 1-pentene with 1-hexene reflected a binomial behaviour. Therefore, the ratio for dimers is 1:2:1 (C10:C11:C12) while the trimers (pentadecenes up to octad...

Reactions of iodine-nitrene reagents with boranes.

Reactions of the boranes (C6F5)2BR (R = C6F5, Ph, H) with the nitrene-iodine reagents XC6H4SO2N=IPh, X = Me, Cl and MeSO2N=IPh effect the insertion of nitrene into the B–C and B–H bonds affording the species (C6F5)2BN(SO2C6H4X)R (X = Me, R = C6F5 1, Ph 3, H, 4, X = Cl, 5, X = NO2, 7) and (C6F5)2BN(SO2Me)H 6).

Isocyanide insertion and cyclization reactions to form indolines using pincer-type complexes of scandium.

The addition of 2,6-dimethylphenyl isocyanide (CN[DMeP], two equivalents) to previously reported (PNP)Sc(III) pyridyl complexes resulted in the formation of novel indoline complexes of scandium. By varying the nature of the pyridyl moiety one can intercept an intermediate prior to methyl migration. In addition to structural studies of two indolene complexes, we also propose a mechanism for the ...

Antigen – Antibody Reactions with Labeled Reagents