The preparation of (+)-(3,3-dimethyl-2-methylenenorbornan-1-yl)methyl methanesulfonate (9) was carried out in 2 steps, dihydroxylation and mesylation, from (−)-2-methylenebornane. Hydrolysis and reduction of 9 gave a fenchyl alcohol (2) and a methylenefenchone (21), respectively. Oxidation of 9 afforded a new analogue (23) of the class of oxatricyclo compounds. Treatment of 9 with NBS resulted in a