The invention includes a process of producing methyl methacrylate or derivatives thereof is described. The process includes the steps of converting 2-butanone to methyl propionate using a Baeyer-Villiger monooxygenase, and treating the methyl propionate produced to obtain methyl methacrylate or derivatives thereof. A method of preparing polymers or copolymers of methyl methacrylate or its derivatives is also described.