“…Bio-derived or potentially bio-derived 33 products have been investigated in the search for wholly new materials to replace solvents of concern. Biomass-derived, or potentially biomass-derived, solvents have also been used as media in which to carry out CO 2 -based carboxylations (Gevorgyan et al 2020 ). These included polar aprotic biomass-derived ethers [ 2-methyltetrahydrofuran , acetaldehyde diethyl acetal , isosorbide dimethyl ether , 2,2-dimethyl-1,3-dioxolane-4-methanol (Cyrene®), eucalyptol (also known as 1,8-cineol ), Rose oxide ] and esters (γ-valerolactone, diethyl succinate , ethyl acetate ), as well as non-polar aprotic unsaturated terpenes and their derivatives [ γ-terpinene , α-pinene , (R)-( + )limonene , p-cymene ].…”