Ethyl 1-tert-butyl-5-phenyl-1H-pyrazole-4-carboxylate

Abstract

In the title compound, C<inf>16</inf>H<inf>20</inf>N<inf>2</inf>O <inf>2</inf>, the pyrazole ring is essentially planar [maximum deviation = 0.008 (2) Å] and is inclined at an angle of 82.82 (10)° with respect to the phenyl ring. The crystal packing is consolidated by pairs of intermolecular C-H?O hydrogen bonds, which link the molecules into centrosymmetric dimers stacked along the a axis.