Catalytic Hydrosilylation of Alkenes by Iron Complexes
Containing Terpyridine Derivatives as Ancillary Ligands
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Abstract
Iron complexes formulated as Fe(terpy)X<sub>2</sub> (terpy = 2,2′:6′,2″-terpyridine derivatives;
X = Cl, Br) were prepared and their catalytic activities for hydrosilylation
of olefin with hydrosilane were examined. Although Fe(terpy)X<sub>2</sub> did not show catalytic activity, the treatment of Fe(terpy)X<sub>2</sub> with NaHBEt<sub>3</sub> caused catalytic activity. The influence
of substituents in terpy on the catalytic activity was examined, and
it was found that some complexes with an unsymmetrically disubstituted
terpy selectively produced 1-silylalkane with quite high catalytic
activity. In the reaction of 1-octene with PhSiH<sub>3</sub>, the
double-hydrosilylation product Ph(1-octyl)<sub>2</sub>SiH was
selectively obtained