posted on 1998-01-16, 00:00authored byWinfried P. Kretschmer, Sergei I. Troyanov, Auke Meetsma, Bart Hessen, Jan H. Teuben
The novel dimeric bis(2,4,7-trimethylindenyl)yttrium hydride
[(Ind‘)2Y(μ-H)]2 (3) has
been prepared
from
(Ind‘)2Y(μ-Cl)2Li(THF)2
(1) via the alkyl complex
(Ind‘)2YCH(SiMe3)2
(2). The hydride 3 is a catalyst
that
effects the regio- and stereoselective homodimerization
of a range of α-olefins at 80 °C as well as
head-to-head
codimerization of styrene with other α-olefins.