Cobalt(II) and Manganese(II) Complexes of Novel Schiff Bases, Synthesis, Charcterization, and Thermal, Antimicrobial, Electronic, and Catalytic Features
Table 3
Oxidation of styrene and cyclohexene.
Entry
Catalyst
Styrene conversion (%)
Selectivity (%)
Styreneoxide
Benzaldehyde
Others
1
Blank
11.5
4.5
10.0
85.5
2
[CoL1(H2O)2]2AcO
76.7
21.8
44.5
33.7
3
[CoL2(H2O)2]2AcO
81.3
17.4
56.1
26.5
4
[MnL1(H2O)2]2AcO
85.3
28.2
38.9
32.9
5
[MnL2(H2O)2]2AcO
77.8
31.8
40.5
27.7
Entry
Catalyst
Cyclohexene conversion (%)
Selectivity (%)
Cyclohexeneoxide
2-Cyclohexen-1-one
Others
1
Blank
17.7
7
14.3
78.7
2
[CoL1(H2O)2]2AcO
65
14.2
61.2
24.6
3
[CoL2(H2O)2]2AcO
69.7
18.7
58.3
23
4
[MnL1(H2O)2]2AcO
71.2
9.3
52.4
38.3
5
[MnL2(H2O)2]2AcO
80.9
11.2
64
24.8
Reaction conditions: alkene (10 mmol), H2O2 (20 mmol), catalyst (1 mmol), CH3CN (20 mL), and nitrogen atmosphere at 90°C.
