O
N
R
3
R
3
R 5
R 1
R 2
R 4
R 4
Ni
R
L
VI
VII
R = Ph(PPh 3 ) ;
R
1 = 9-anth;
R
2 = R
4 =R
5 =H;
R
3 =
i
Pr
(VI-1) n=1; X=CH 2 ;
n=1; X=o-C 6 H 4 ;
n=1; X=o-C 6 H 4 (C 6 H 4 ) 2
R
1 =
i
Pr; R
2 =9-Anth; R
3 = H
R
1
=
i
Pr; R
2 =9-Anth; R
3 =H
R
1 =
i
Pr; R
2
=9-Anth; R
3
=H
(VII-1)
(VII-2)
(VII-3)
R = Me(MeCN)]
R
1 = 9-anth;
R
2 = R
4 =R
5 =H;
R
3 =
i
Pr
(VI-2)
R 2
N
N
R 1
R 1
R 3
R 3
O
Ni
L
R
VIII
IX
[NiClMe(PMe 3 ) 2 ]
X = O H
(VIII-1)
[Ni(h
1
-CH 2 Ph)Cl(PMe 3 ) 2 ]
R
1 =R
3 =
i
Pr; R
2 =Me
(IX-1)
[NiCl(1-naph)(PPh 3 ) 2 ]
X=OH
(VIII-2)
[Ni(h
1
-CH 2 Ph)Cl(2,6-lu)) 2 ] R
1 =R
3 =
i
Pr; R
2 =Me
(IX-2)
[Ni(h
1
-C=OPh)Cl(py) 2 ]
R
1 =R
3 =
i
Pr; R
2 =Me
(IX-3)
[Ni(h
1
-CH 2 Ph)Cl(PMe 3 ) 2 ]
R
1 =R
3 =
i
Pr; R
2 =Et
(IX-4)
R
1 =R
3 =
i
Pr; R
2 =CH 2
i Pr
(IX-5)
R
1 =R
2 =R
3
=
i
Pr
(IX-6)
R
1 =R
3 =
i
Pr; R
2 =Ph
(IX-7)
R
1 =R
3 =
i
Pr; R
2 =4-CF 3 C 6 H 4 (IX-8)
R
1 =R
3 =
i
Pr;
R
2 =4-MeOC 6 H 4
(IX-9)
O
Pd
P
Z
L
R
R
R
R
X
R = Me, L = DMSO, R = -OMe, Z = SO 3 -M+
R = Me, L = py, R = -OMe, Z = SO 3 -M+
(X-1)
(X-2)
Fig. 7 Most frequently used late transition metal catalyst precursors for the copolymerization of
functionalized norbornenes
Polyolefins with Cyclic Comonomers
133