2-Tetralone has been converted to 5-allyl-2-methyl-9-oxo-benzomorphan methobromide (4). Thermal dequaternization of 4 afforded tertiary base 5. Alternatively, 4 was reduced with sodium borohydride to give 7a or reacted with methylmagnesium iodide to give 7b. Dequaternization of these to tertiary bases (8a and 8b) followed by acid-catalyzed cyclization afforded tetrahydrofurano compounds 9a and 9b, respectively. Bromocyclization of 8b afforded bromomethyltetrahydrofurano compound 9c, which was further converted to dimethylamino compound 9d.