Crystal structure of (E)-4-[N-(7-methyl- 2-phenylimidazo[1,2-a]pyridin-3-yl)- carboximidoyl]phenol

The molecule of the title compound, C21H17N3O, is built up from fused five- and six-membered rings connected to a methyl group, a phenyl ring and an (iminomethyl)phenol group. The fused ring system is almost planar (r.m.s. deviation = 0.031 Å) and forms dihedral angles of 64.97 (7) and 18.52 (6) with the phenyl ring and the (iminomethyl)phenol group, respectively. In the crystal, centrosymmetric molecules are linked by pairs of C—H interactions into dimeric units, which are further connected by O–H N hydrogen bonds to form layers parallel to (101)