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O
PPh 2
0.1 mol %
Ni
Cl
O
PPh 2
S
PhI
+
RSSR
Ph
R
1 equiv Zn, DMF
R
Yield (%)
CH 3
99
i
-C 3 H 7
99
n -C 4 H 9
99
s
-C 4 H 9
99
t -C 4 H 9
49
C 6 H 5
86
Scheme 6.20
Bn
N
3mol%
Ni
N
Bn
2
S
ArBr
+
PhSH
Ar
Ph
KO
t
Bu, DMF
Ar
Yield (%)
C 6 H 5
99
p
-CH 3 C 6 H 4
94
m
-CH 3 C 6 H 4
93
o -CH 3 C 6 H 4
80
p
-CH 3 OC 6 H 4
89
p
-(CH 3 ) 2 NC 6 H 4
90
Scheme 6.21
15 mol % Ni(COD) 2
H 3 CO
OCH 3
30 mol %
N
N
S
ArX +
[N(CH 3 ) 4 ][SCF 3 ]
Ar
CF 3
THF
Ar
X
Yield (%)
p -CH 3 C 6 H 4
I
90
1,1
-Biphenyl
I
92
p
-EtO 2 C 6 H 4
I
45
C 6 H 5
Br
65
m -CH 3 C 6 H 4
Br
37
C 6 H 5
Cl
0
Scheme 6.22
 
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