Chemistry Reference
In-Depth Information
Table 10.4
Selected heterogeneous catalyzed oxidation of benzyl alcohol to benzaldehyde.
Conversion (%)
(selectivity, %)
Catalyst
Oxidant
T (1C)
Time (h)
Solvent
Ref.
RuHAP
Air
80
3
Toluene
100 (95)
42
Ru(OH)
x
/Fe
3
O
4
(3.8 mol% Ru)
O
2
105
1
Toluene
499 (499)
31
Silica-supported Pd (3 mol% Pd)
O
2
90
2.5
Toluene
100 (495)
43
Pd@SBA-15 (0.4 mol%)K
2
CO
3
(1 equiv.)
Air
80
5.5
Toluene
499 (
o
99)
44
Pd/MgO (1 mol%)
O
2
70-80
20
Trifluorotoluene
100 (92)
45
PdHAP-0 (0.2 mol%)
O
2
90
1
Trifluorotoluene
499 (499)
14
AuCNT (0.2 mol%); NaOH (3 equiv.)
Air
25
12
THF
100 (499)
11
Au (2.7 wt%)/1%; CuO/3% MCM41
O
2
80
20
Toluene
73 (94)
46
Polyaniline-supported; VO(acac)
2
(2.3 mol% V)
O
2
100
9
Toluene
98 (499)
47
Table 10.5
Selected heterogeneous catalyzed oxidation of benzyl alcohol to benzaldehyde in alternative solvents or solvent free
conditions.
Conversion (%)
(selectivity, %)
Catalyst
Oxidant
T (1C)
Time (h)
Solvent
Ref.
[Cu(AcO)
2
(py)]
2
/silica (0.75 mol%); TEMPO (3 mol%)
O
2
(1.5 bar)
80
12
scCO
2
100 (100)
48
Pd nanoparticles/PEG (5 mol% Pd)
O
2
80
13
scCO
2
83 (499)
28a
ARP-Pd
a
(1 mol%)
O
2
100
1.5
H
2
O
497 (499)
49
PdHAP-0
O
2
110
24
H
2
O
499 (490)
14
Au nanoparticles (2.5% on TiO
2
)
O
2
(2 atm)
100
-
None
77 (51)
50
Pd/SiO
2
-Al
2
O
3
-H
2
(0.3 wt%)
O
2
50
24
None
99 (499)
51
a
ARP-Pd
ΒΌ
amphiphilic resin dispersion of Pd nanoparticles'.
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