Experimental

R factor = 0.040; wR factor = 0.099; data-to-parameter ratio = 12.4. In the molecule of the title difluorobenzamide derivative, C10H7F2NO, the angle formed by the least-squares mean line through the prop-2-ynyl group [maximum deviation = 0.011 (3) Å] and the normal to the benzene ring is 59.03 (7). In the crystal, molecules are linked via N—H O and C—H F hydrogen bonds into layers parallel to the ac plane. Related literature For the biological activity of difluorobenzamide derivatives