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In the title compound, C12H11NO3, the mol­ecules have two intra­molecular C—H⋯O hydrogen bonds that define an S(6) S(5) pattern. The mol­ecules are linked by N—H⋯O hydrogen bonds into a centrosymmetric dimer. These dimers are linked by further C—H⋯O hydrogen bonds, so forming a [100] ribbon of R22(8) R44(18)[ R44(20)] rings, a [1 ] chain of alternating R22(8) and R22(22) rings, and an [010] complex chain of R42(18) rings. The combination of the [100] ribbon, the [1 ] chain and the [010] chain results in the formation of a three-dimensional network structure. [ABSTRACT FROM AUTHOR]

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]