Cannabis Alchemy

by D.Gold

Isomerizing the Cannabidiol with Sulfuric Acid

One drop of 100% sulfuric acid was added to a mixture of 1.94 gm crystalline cannabidiol in 35 cc cyclohexane. After refluxing for one hour, the alkaline beam test was negative. The solution was decanted from the sulfuric acid, then was washed twice with aqueous 5% bicarbonate solution and twice with water. It was then evaporated. This residue was distilled under reduced pressure to yield pure THC with a rotation range of 259° to 269°.