Susmit Basu / Chinese Journal of Catalysis 36 (2015) 634–638
637
decrease in conversion and enantioselectivity for catalysts (1)
and (2).
Table 1
Catalytic results over catalysts (1) and (2).
Substrate
Catalyst Conversion (%) ee (R isomer) (%) TOF (h–1)
Acknowledgments
(1)
(2)
(1)
(2)
(1)
(2)
100
90
99.2
53
666
256
556
285
575
220
The research infrastructure and financial supports from the
RWTH‐Aachen University are highly acknowledged.
(MPV)
(ACP)
100
96
98
References
49
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This report showed that treating of the silica support with
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Table 2
Catalytic results over catalysts (1) and (2) in the catalyst recycling experiments.
1st Cycle
Conversion (%)
2nd Cycle
Conversion (%)
3rd Cycle
Conversion (%)
Substrate
MPV
Catalyst
ee a (%)
99.2
53
98
49
ee (%)
67.8
21.5
59.4
18
ee (%)
45.6
12.3
<1
(1)
(2)
(1)
(2)
100
90
100
96
88
77
83
80
56
46.8
39.4
38
ACP
5
a R‐isomer is the major isomer.