Table 4.
Epoxidation of (−)-α-pinene in the presence of oxidovanadium(V) Schiff base complexes.
Entry | Catalyst | Yield (%) | Oxidant | (−)-α-Pinene Oxide (%) |
---|---|---|---|---|
1 | VOL1 | 14 | H2O2 | 86 |
2 | VOL3 | 18 | H2O2 | 88 |
3 | VOL9 | 15 | H2O2 | 81 |
4 | VOL1 | 51 | TBHP | 61 |
5 | VOL2 | 59 | TBHP | 73 |
6 | VOL3 | 64 | TBHP | 59 |
7 | VOL4 | 55 | TBHP | 63 |
8 | VOL5 | 54 | TBHP | 67 |
9 | VOL6 | 45 | TBHP | 66 |
10 | VOL7 | 48 | TBHP | 49 |
11 | VOL8 | 66 | TBHP | 62 |
12 | VOL9 | 58 | TBHP | 59 |
13 | VOL10 | 62 | TBHP | 70 |