Crystal structure of Dehydrodieugenol B methyl ether, a neolignan from Nectandra leucantha Nees and Mart (Lauraceae)

In the title compound, C21H24O4 (systematic name: 4,5′-diallyl-2,2′,3′-trimethoxydiphenyl ether), the aromatic rings lie almost perpendicular to each other [dihedral angle = 85.96 (2)°]. The allyl side chains show similar configurations, with Car—C—C=C (ar = aromatic) torsion angles of −123.62 (12) and −115.54 (12)°. A possible weak intramolecular C—H...O interaction is observed. In the crystal, molecules are connected by two C—H...O hydrogen bonds, forming undulating layers lying parallel to the bc plane. Weak C—H...π and π–π stacking interactions also occur.