Abstract
Either 3-methyl-9α-hydroxy-9β-phenyl-3-azabicyclo [3.3.1] nonane (Ia) or 9β-hydroxy epimer (IIa) was treated in boiling alcohol in the presence of an acid to yield 9β-alkoxy compound (IIb) as a major product. Ia or IIa was decomposed with propionic anhydride at 160∼170° into one and the same reaction product from which styrene derivatives (VI and VII) were isolated. These facts illustrated the tendency of the skeleton of 9-phenylazabicyclo [3.3.1] nonane to yield the carbonium ion (V).
