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(a)
R
R
R
X
Nuc
X
Pd
II
L
n
X
Pd
II
L
n
Nuc
Nuc
Pd
0
L
n
R
R
≠
H
(b)
Nuc
Pd
II
L
n
Nuc
X
Pd
II
L
n
Nuc
X
Pd
0
L
n
X
Me
(c)
IPd
H
Me
Me
Pd(OAc)
2
, PPh
3
piperidine
MeCN, 60
I
O
+
°
C
H
OH
Ac
Ac
N
Ac
7.35 7.36 7.37
Scheme 7.21 Nucleophilic trapping of (a) neopentylpalladium halide intermediates and (b) vinylpalladium halide intermediates.
(c) First example of Pd-catalyzed anion capture cascade using a hydride nucleophile.
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