2,2,2-Trifluoro-<i>N</i>-(1a,2,7,7a-tetrahydronaphtho[2,3-<i>b</i>]oxiren-3-yl)acetamide by X-ray powder diffraction

The title compound, C(12)H(10)F(3)NO(2), an important precursor in the preparation of benzovesamicol analogues for the diagnosis of Alzheimer's disease, was prepared by the epoxidation of 5,8-dihydronaphthalen-1-amine using 3-chloroperoxybenzoic acid. The structure was determined by X-ray powder diffraction, multinuclear NMR spectroscopy and FT-IR spectroscopy. A pair of molecules form intermolecular N-H...O hydrogen bonds, involving the amino and oxirene groups, to produce a dimer.