General Hydrogenation Conditions: A 20L flask equipped with a reflux condenser and an addition funnel was purged with argon for 10 minutes at 1 bar. Pd/C (0.1 molar %) was added to the reaction slowly using a powder funnel under argon. The flask was then purged with argon for 10 minutes at 1 bar. Ethanol (1L) was added slowly to avoid sparking the solvent. Cannabinoid (100 g) was dissolved in minimal amounts of ethanol. The solution was added to the flask under argon and purged for 10 minutes at 1 bar. Afterwards, the atmosphere of argon was stopped, and an atmosphere of hydrogen (1 bar) was introduced. The reaction was then stirred at 25 °C for 3 hours or until complete by HPLC with a diode array detector. Upon completion, the reaction was purged with argon for 10 minutes at 1 bar. The reaction mixture was poured over 1-3-micron filter paper on a Buchner funnel and then concentrated in-vacuo. The crude oil was then dissolved in hexane and purified over silica (0 to 5% Ethyl Acetate). The fractions of interest were concentrated in-vacuo and then distilled to afford a yellow oil.