It is prepared by hydrogenation of furfural. Another important solvent made from furfural is methyltetrahydrofuran. The reaction of furfural and aniline produces a bright pink color. This very first business of Lohia was about turning corncobs into furfural alcohol. There is a good market for value added chemicals that can be obtained from furfural. Furfurylamine is an aromatic amine typically formed by the reductive amination of furfural with ammonia. In industrial production, some lignocellulosic residue remains after the removal of the furfural. The third class includes reactions describing the synthesis of FDCA from furfural. When heated in the presence of acids, furfural irreversibly polymerizes, acting as a thermosetting polymer. Furfural from pentoses gives a blue or green color. Pentoses are then dehydrated to furfural, while hexoses are dehydrated to 5-hydroxymethylfurfural. Furfural and water evaporate together from the reaction mixture, and separate upon condensation. Volatile compounds detected after cooking the mushroom samples included furfural, benzaldehyde, cyclohexenone, and furanyl compounds. To obtain the 2-furyl carbinols, Piancatelli subjected furfural, an inedible biomass, to a Grignard reaction. The main countries producing furfural today are the Dominican Republic, South Africa and China.