1
8
M. Araghi, F. Bokaei / Polyhedron 53 (2013) 15–19
Table 2
a
4 2
Hydroxylation of alkanes with NaIO catalyzed by [Mn(TNH PP)Cl-MWCNT].
Entry
1
Alkane
Conversion (%)b
95
Ketone (%)b
62
Alcohol (%)b
33
Time (h)
2
2
93c
83
10
2
3
4
89d,e
77f
75
77
14
–
2
2
5
81
–
81
2
6
7
75g
86e
75
86
–
–
2
2
a
b
c
d
e
f
Reaction conditions: alkane (1 mmol), NaIO
GLC yield based on the starting alkane.
Only the a-position was oxidized.
The product was benzophenone.
Isolated yield.
4
(2 mmol), catalyst (0.05 mmol), CH
3
CN/H
2
O (10 mL/10 mL).
The product was acetophenone.
The product was ethyl phenyl ketone.
g
shorter, and the conversions and selectivities are higher than for
the other systems.
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4
. Conclusion
2
The [Mn(TNH PP)Cl@MWCNT] catalyst has been used as a
highly active and heterogeneous biomimetic oxidation catalyst.
In the presence of this catalyst, carboxylic acids were converted
to their corresponding carbonyl compounds in high yield. The cat-
alyst exhibits excellent catalytic activity in the oxidation of various
alkanes. Due to the particle size of the MWCNTs, the catalytic
activity of this heterogeneous catalyst is higher than our previously
reported catalysts. Finally, this catalyst is a robust and recoverable
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