Crystal structure of 2,2-dimethyl-N-(5-methylpyridin-2-yl)propanamide

Abstract

There are two molecules in the asymmetric unit of the title compound, C11H16N2O. The pyridine rings and amide groups overlap almost perfectly (r.m.s. overlay fit = 0.053 Å), but the tertiary butyl groups have different orientations: in one molecule, one of the methyl C atoms is syn to the amide O atom [O-C-C-C = -0.8 (3)°] and in the other the equivalent torsion angle is 31.0 (2)°. In the crystal, the two independent molecules are linked by a pair of N-H⋯N hydrogen bonds in the form of an R22 (8) loop to form a dimer. AC-H⋯O interaction connects the dimers into [100] chains.