Crystal structure of 4-(3,5-dimethyl-1,7-diphenyl-1,7-di­hydro­dipyrazolo­[3,4-b:4′,3′-e]pyridin-4-yl)phenol dimethyl sulfoxide disolvate

Abstract

The mol­ecular and crystal structure of the novel compound 4-(3,5-Dimethyl-1,7-diphenyl-1,7-di­hydro­dipyrazolo­[3,4 − b:4′,3′-e]pyridin-4-yl)phenol are reported.

A new bis­pyrazolyl­pyridine­(BPP)-containing derivative, namely, 4-(3,5-di­meth­yl-1,7-diphenyl-1,7-di­hydro­dipyrazolo­[3,4-b:4′,3′-e]pyridin-4-yl)phenol (1), C₂₇H₂₁N₅O·2C₂H₆OS, has been synthesized by a Hantzsch multicomponent reaction using acetic acid (AcOH) as solvent and copper(II) acetate monohydrate [Cu(OAc)₂·H₂O] as mild oxidant. The structure of the compound was fully characterized by single-crystal X-ray diffraction. The crystallographic study shows that the mol­ecule crystallizes in the triclinic system with space group P1, with one mol­ecule per asymmetric unit. Whereas the phenolic substituent in the para position of the pyridine group is highly twisted from the planar bis­pyrazolo­pyridine core [56.19 (4)°], the two phenyl rings present on the nitro­gen atoms are only slightly distorted [11.77 (5) and 29.17 (5)°]. The crystal structure is consolidated by inter­molecular C—H⋯O hydrogen bonds and π–π stacking inter­actions.