Diethyl 2-{[2-(trifluoromethyl)anilino]methyl-idene}propanedioate

Abstract

The title compound, C <inf>15</inf>H <inf>16</inf>F <inf>3</inf>NO <inf>4</inf>, is an N-substituted derivative of ortho-trifluoro-methyl-aniline featuring a twofold Michael system. The least-squares planes defined by the atoms of the phenyl ring and the atoms of the Michael system enclose an angle of 15.52 (5)°. Apart from classical intra-molecular N - H?O and N - H?F hydrogen bonds, inter-molecular C - H?O contacts are observed, the latter connecting the mol-ecules into chains along [110]. The shortest inter-centroid distance between two aromatic systems is 3.6875 (9) Å.