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A Useful Approach Towards δ9-Tetrahydrocannabinol.-Condensation reaction of cis-p-menth-2-ene-1,8-diol (I) with olivetol ( II) gives 6,12-dihydro-6-hydroxycannabidiol (III). Purification of this compound followed by ring closure yields δ9-tetrahydrocannabinol (IV) in high purity. -(STOSS, P.; MERRATH, P.; Synlett (1991) 8, 553-554; Chem. Res. Dev., Heinrich Mack Nachf., Chem.-Pharm. Fabrik, W-7918 Illertissen, Fed. Rep. Ger.; EN)

150ChemInform Abstract Acylation of 1,4:3,6-dianhydro-D-glucitol (I) with the anhydrides (II) in the presence of lead(II) yields the 5-endo-acylates (III) as the main products, whereas on heating without a catalyst, predominantly the 2-exo-acylates (IV) are formed. (IR-data).