Hydroformylation of biomass-based hydroxyolefins in eco-friendly solvents: New fragrances from myrtenol and nopol

•Hydroformylation of myrtenol and nopol was performed in eco-friendly solvents.•Both substrates revealed to be quite reluctant to hydroformylation.•Both substrates showed a strong tendency to form isomeric saturated aldehydes.•In spite of this challenge, fragrance aldehydes were obtained in good yields.•The reaction mechanism is discussed.