3-Isopropyl-2- p-tol­yloxy-5,6,7,8-tetra­hydro-1-benzothieno[2,3- d]pyrimidin-4(3 H)-one

Abstract

In the title compound, C ₂₀H ₂₂N ₂O ₂S, the central thieno­pyrimidine ring system is essentially planar, with a maximum displacement of 0.023 (2) Å. The attached cyclo­hexene ring is disordered over two possible conformations, with an occupancy ratio of 0.776 (12):0.224 (12). Neither inter­molecular hydrogen-bonding inter­actions nor π–π stacking inter­actions are present in the crystal structure. The mol­ecular conformation and crystal packing are stabilized by three intra­molecular C—H⋯O hydrogen bonds and two C—H⋯π inter­actions.