Daisuke Noda

Effect of TMEDA on Iron-Catalyzed Coupling Reactions of ArMgX with Alkyl Halides

A new reaction mechanism for the iron-catalyzed cross-coupling reaction of ArMgX with alkyl halides using (TMEDA)FeAr(2) and (TMEDA)Fe(Ar)Br is proposed on the basis of the isolation and reaction of these organoiron intermediates.

Non-Precious-Metal Catalytic Systems Involving Iron or Cobalt Carboxylates and Alkyl Isocyanides for Hydrosilylation of Alkenes with Hydrosiloxanes

A mixture of an iron or a cobalt carboxylate and an isocyanide ligand catalyzed the hydrosilylation of alkenes with hydrosiloxanes with high efficiency (TON >10(3)) and high selectivity. The Fe catalyst showed excellent activity for hydrosilylation of styrene derivatives, whereas the Co catalyst was widely effective in reaction of alkenes. Both of them catalyzed the reaction with allylic ethers. Chemical modification and cross-linking of silicones were achieved by choosing the right catalyst and reaction conditions.

Synthesis of a new pyridinophane macrocycle with carbamate functionality via novel CO2 insertion reaction

The coupling reaction of 2, 11-diaza[3.3](2, 6)pyridinophane3 and N-tosyl-diethanolamine ditosylate4 in the presence of M2CO3 (M = Cs+, K+) in DMF afforded a novel macrocycle2 with a carbamate moiety, whose structure was confirmed by an X-ray structural analysis. Figure options Download full-size image Download as PowerPoint slide