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

Abstract

In the title compound, C21 H24 O4 (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 C ar - 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.