Crystal structure of 1-cyclopropanecarbonyl-3-methyl-2,6-di-p-tolylpiperidin-4-one

Abstract

The title compound, C24H27NO2, crystallizes with two independent molecules (A and B) in the asymmetric unit. The two molecules have very similar conformations and each exhibits an intramolecular C—H...π interaction. The central piperidine rings adopt boat conformations and the p-tolyl rings are inclined to the mean plane of the piperidine ring by 71.21 (11) and 89.86 (12)° in molecule A and by 68.01 (12) and 89.33 (12)° in molecule B. The cyclopropanecarbonyl group is oriented at an angle of 68.5 (2)° with respect to the mean plane of the piperidine ring in molecule A and 66.2 (2)° in molecule B. In the crystal, the A and B molecules are linked by C—H...O hydrogen bonds, enclosing R21(6) ring motifs, forming ribbons running along the a-axis direction.

Keywords

• crystal structure
• cyclopropanecarbonyl
• p-tolylpiperidin-4-one
• C—H...π interaction