(Z)-4-(2,5-Di-tert-butyl-anilino)pent-3-en-2-one

• Published in: Acta crystallographica. Section E, Structure reports online Vol. 67; no. Pt 6; pp. o1405 - o1406
• Main Authors: Pastrán, Jesús, Ramírez, Andrea, Agrifoglio, Giuseppe, Linden, Anthony, Dorta, Romano
• Format: Journal Article
• Language: English
• Published: United States International Union of Crystallography 01-06-2011
• Subjects: Organic Papers
• ISSN: 1600-5368; 1600-5368
• DOI: 10.1107/S1600536811017296

In the crystal structure of the title ketoamine, C(19)H(29)NO, the bond lengths from the N atom through the alkene group to the ketone O atom show the presence of an extensively delocalized π-system. The dihedral angle between the plane of the phenyl ring and that of the alkene component is 63.45 (7)° due to steric hindrance exerted by the tert-butyl groups. The mol-ecule has a Z-configured alkene function, which is facilitated by an intra-molecular N-H⋯O hydrogen bond between the amine and ketone groups. The mol-ecules are linked into extended chains, which run parallel to the [010] direction, by a very weak C-H⋯O inter-action between the methyl substituent of the alkene group and the ketone O atom of a neighbouring mol-ecule.