Asymmetric Transfer Hydrogenation of (Hetero)arylketones with Tethered Rh(III)–<i>N</i>-(<i>p</i>-Tolylsulfonyl)-1,2-diphenylethylene-1,2-diamine Complexes: Scope and Limitations
A series of new tethered Rh(III)/Cp* complexes containing the N-(p-tolylsulfonyl)-1,2-diphenylethylene-1,2-diamine ligand have been prepared, characterized, and evaluated in the asymmetric transfer hydrogenation (ATH) of a wide range of (hetero)aryl ketones. The reaction was performed under mild conditions with the formic acid/triethylamine (5:2) system as the hydrogen source and provided enantiomerically
Transition metal complex, catalyst for olefin polymerization, and process for producing olefin polymer with the same
申请人:——
公开号:US20040242410A1
公开(公告)日:2004-12-02
The present invention relates to a transition metal complex represented by the formula (I):
1
wherein M represents a Group 4 transition metal;
—Y— represents
(a): —C(R
1
)(R
20
)-A-,
(b): —C(R
1
)(R
20
)-A
1
(R
30
)—,
(c): —C(R
1
)=A
1
-, or
(d): —C(R
1
)=A
1
-A
2
-R
30
;
A represents a Group 16 element and A
1
and A
2
each represents a Group 15 element;
R
1
to R
9
, R
20
, and R
30
are the same or different and each represents an optionally substituted hydrocarbon group, etc.; and X
1
and X
2
are the same or different and each represents a hydrogen atom, a halogen atom, an optionally substituted C
1-10
alkyl group, etc., and an intermediate product thereof, and a catalyst for olefin polymerization which comprises said transition metal complex as a component.
TRANSITION METAL COMPLEX, CATALYST FOR OLEFIN POLYMERIZATION, AND PROCESS FOR PRODUCING OLEFIN POLYMER WITH THE SAME
申请人:HANAOKA Hidenori
公开号:US20100048933A1
公开(公告)日:2010-02-25
The present invention relates to a transition metal complex represented by the formula (I):
wherein M represents a Group 4 transition metal;
—Y— represents
(a): —C(R
1
)(R
20
)-A-,
(b): —C(R
1
)(R
20
)-A
1
(R
30
)—,
(c): —C(R
1
)=A
1
-, or
(d): —C(R
1
)=A
1
-A
2
-R
30
;
A represents a Group 16 element and A
1
and A
2
each represents a Group 15 element;
R
1
to R
9
, R
20
, and R
30
are the same or different and each represents an optionally substituted hydrocarbon group, etc.; and X
1
and X
2
are the same or different and each represents a hydrogen atom, a halogen atom, an optionally substituted C
1-10
alkyl group, etc., and an intermediate product thereof, and a catalyst for olefin polymerization which comprises said transition metal complex as a component.