2-Oxo-2 H -chromen-4-yl 4-methoxybenzoate

Akoun Abou (1) , Abdoulaye Djandé (2) , Grégoire Danger (3) , Adama Saba (2) , Rita Kakou-Yao (1)

1 Université de Cocody
2 UJZK - Université Joseph Ki-Zerbo [Université de Ouagadougou, Burkina Faso]
3 AMU - Aix Marseille Université

In the title mol­ecule, C17H12O5, the chromen-2-one ring and the 4-meth­oxy­benzoate side chain are inclined to one another at a dihedral angle of 69.82 (9)°. The crystal structure features parallel sheets of centrosymmetric R22(6) dimers joined by a C(7) chain, resulting in centrosymetric tetra­mers of hydrogen-bonded mol­ecules with graph-set motif R44(40). These centrosymetric tetra­mers are connected by a pair of hydrogen bonds described by an R22(8) ring motif and a C(7) chain via C-H...O inter­actions. In the structure, there are also [pi]-[pi] stacking inter­actions between chromene benzene and the six-membered heterocyclic rings [centroid-centroid distance = 3.691 (2) Å] and weak C=O...[pi] inter­actions [O...(ring centroid) distance = 3.357 (3) Å].

Domaines: Chimie

Akoun Abou, Abdoulaye Djandé, Grégoire Danger, Adama Saba, Rita Kakou-Yao. 2-Oxo-2 H -chromen-4-yl 4-methoxybenzoate. Acta Crystallographica Section E : Structure Reports Online [2001-2014], 2012, 68 (12), pp.o3438-o3439. ⟨10.1107/S1600536812047666⟩. ⟨hal-03332572⟩