Figure 2

Proposed reaction pathways of α-pinene (1). The numbers refer to chemicals in Table 1, and boxed numbers represent the major RPs. RO: Ring opening, AO: Allylic oxidation, C-E: Cyclo-etherification reaction, W-M: Wagner-Meerwein rearrangement, EPo: Epoxidation, CR: Cleavage and removal, DH: dehydration, and [O]: Oxidation.