Processes are provided for preparing synthetic para-eugenol and polysiloxane-polycarbonate copolymers including the synthetic para-eugenol. In an embodiment, a process for synthesizing para-eugenol can comprise: a) hydrolyzing methyl 5-allyl-3-methoxysalicylate to form 5-allyl-3-methoxysalicylic acid; b) decarboxylating the 5-allyl-3-methoxysalicylic acid to form a product comprising para-eugenol. The polysiloxane-polycarbonate copolymer prepared by the process may be isolated by, for example, anti-solvent precipitation followed by vacuum drying.