27
100
H
2 O
–
90
N.A.
N.A.
3,278
[173]
28
101
DME/H
2 O
–
60
80 min
15,400
11,550
a
[174]
29
102
t-BuOH
Et
3 N
80
4 h
5,000
1,250
a
[177]
30
103
H
2 O
HCO
2 Na
100
12 min
59,600
a
298,000
[178]
31
104
Dioxane
–
85
N.A.
N.A.
3,271
[179]
32
105
c
H
2 O
HCO
2 Na
80
≦1 h
N.A.
15,110
[180]
33
106
–
HCO
2 Na
90
4 months
2,160,000
N.A.
[181]
34
107
DME
HCO
2 Na
70
N.A.
498,190
N.A.
[182]
35
108
–
HCO
2 Na, H
2 O
90
5 h
8,030
1,606
a
[183]
36
109
H
2 O
HCO
2 Na
80
1 min
80
a
4,790
[184]
N.A.
not available, DME
1,2-dimethoxyethane. bp of CH
3 CO
2 H
¼ 118
C
a
Calculated as TON
¼ TOF
 time
b
Dehydrogenation of sodium formate under irradiation with 400–500 nm light
c
Tris(m-sulfophenyl)phosphine trisodium salt was added as a ligand
Iridium-Catalyzed Dehydrogenative Reactions
45