Table 1 Selective hydrogenation reactions over fresh 15Ag/SiO
catalyst
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a
7
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Entry
t/h T/K P/MPa Conversion/% Selectivity/%
b
c
d
Dimethyl oxalate 12 493 2.5
Dimethyl oxalate 12 553 2.5
Dimethyl maleate 12 473 5.0
Dimethyl glutarate 12 373 0.1
100
100
99
62
96
92
96
84
1
05–114; (d) M. C. van Engelen, H. T. Teunissen, J. G. De Vries
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e
100
40
(
6
1
f
Crotonaldehyde
Acetone
9.5 413 2.0
12 493 4.0
g
41
100
a
À1
8
9
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Reaction conditions: catalyst (1 g), H /substrate = 100 (mol mol ).
2
b
c
d
MG. EG. Dimethyl
e
succinate. Pentylene
f
glycol. Crotonyl
g
alcohol. Isopropanol.
3
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potential to enable a more sustainable MG and EG synthesis
in industry.
This work is financially supported by the Major State Basic
Resource Development Program (Grant No. 2003CB615807),
NSFC (Project 20973042), the Research Fund for the Doctoral
Program of Higher Education (20090071110011), and the
Natural Science Foundation of Shanghai Science & Technology
Committee (08DZ2270500).
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350 | Chem. Commun., 2010, 46, 4348–4350
This journal is ꢀc The Royal Society of Chemistry 2010