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In the title compound {systematic name: 4-methyl-2-oxo-2 H-1-benzopyran-7-yl 3-(3-chloro­phen­yl)prop-2-enoate}, C19H13ClO4, the mol­ecules have an E configuration and the dihedral angle between the coumarin unit and the benzene ring of cinnamo­yloxy is 49.0 (1)°. The mol­ecules are linked by C—H⋯O and C—H⋯Cl hydrogen bonds into a [101] ribbon of alternating R22(14) rings. The mol­ecules are linked by weak inter­molecular C—H⋯O inter­actions into a C22(12) [001] chain and a C22(14) [ 01] chain. The combination of the [101] ribbons, the [001] chains and the [ 01] chains results in the formation of a three-dimensional network structure. [ABSTRACT FROM AUTHOR]

In the title mol­ecule, C25H24O4, the central phenyl ring makes dihedral angles of 85.92 (12) and 78.21 (13)° with the two outer benzene rings. The crystal packing is stabilized by van der Waals forces. [ABSTRACT FROM AUTHOR]

In the title mol­ecule (systematic name: 10,26-dimethyl-2,5,8,15,18,21-hexa­oxatricyclo­[20.4.0.09,14]tetra­cosa-9,11,13,22,24,26-hexa­ene), C22H28O6, the two benzene rings make a dihedral angle of 63.9 (2)°, indicating a boat-like mol­ecular conformation. The crystal packing is mainly stabilized by van der Waals forces. [ABSTRACT FROM AUTHOR]

The title compound {systematic name: 4-methyl-2-oxo-2 H-1-benzopyran-7-yl 3-[4-(dimethyl­amino)phen­yl]prop-2-enoate}, C19H13ClO4, has an E configuration and the dihedral angle between the coumarin unit and the benzene ring is 81.70 (6)°. The mol­ecules are linked by two C—H⋯O hydrogen bonds into a C(4) C(6)[ R21(6)] chain of rings. Adjacent chains are linked by C—H⋯O hydrogen bonds rings into stepped sheets. Adjacent sheets are linked by weak C—H⋯O hydrogen bonds into a three-dimensional network. [ABSTRACT FROM AUTHOR]