In the title compound, C(16)H(12)FlO(2)S, the 4-fluoro-phenyl ring makes a dihedral angle of 80.21 (6)° with the mean plane of the benzofuran fragment. In the crystal, mol-ecules are linked through weak inter-molecular C-H⋯O hydrogen bonds. The crystal structure also exhibits an inter-molecular I⋯F contact [3.423 (2) Å].

Preparation in excellent yields of cyclobutyl benzofuran-2-yl- and naphthofuran- 2-yl-ketones, the corresponding ketoximes and thiosemicarbazones, ether derivatives of the ketoximes and thiazoles derived from the thiosemicarbazones are described. Two of the synthesized compounds have been tested against eight different microorganisms and found to be active against some of the species studied.

In the title compound, C(16)H(13)IO(2)S, the phenyl ring is rotated out of the benzofuran plane, as indicated by the dihedral angle of 32.56 (6)°. The crystal structure is stabilized by an I⋯O halogen inter-action [3.200 (2) Å].

Treatment of 5,6-dimethoxy-2-(methylphenylcarbamoyl)-benzofuran-3carboxylic acid with PPA yielded 2,3-dimethoxy-7-methyl-7,12-dihydro-6H-[1]benzofuro-[2,3-c]-[1]-benzazepin-6,12-dione. The analogous 2-[(5,6-dimethoxybenzofuran-2-carbonyl)methylamino]benzoic acid was resistant to cyclization, whereas 2-[(6methoxybenzofuran-2-carbonyl)-amino]benzoic acid underwent cyclization to the corresponding...

In the title compound, C(16)H(13)ClO(3)S, the 4-chloro-phenyl ring makes a dihedral angle of 79.96 (5)° with the mean plane of the benzofuran fragment. In the crystal, mol-ecules are linked through weak inter-molecular C-H⋯O and C-H⋯π inter-actions.

In the crystal structure of the title compound, C(16)H(13)ClO(2)S, the 4-chloro-phenyl ring is oriented approximately perpendicular to the benzofuran ring plane [dihedral angle = 82.45 (5)°]. In the crystal, mol-ecules are linked by weak inter-molecular C-H⋯O and C-H⋯π inter-actions.

From the water-soluble portion of the methanol extract of the fruit of Glehnia littoralis Fr. SCHMIDT ex MIQ. (Umbelliferae; "hamabofu" in Japanese), thirty compounds, including three new monoterpenoids and a new monoterpenoid glucoside, a new benzofuran glucoside, a new alkyl glucoside, and a new glucide, were obtained. Their structures were clarified by spectral investigation.

In the title compound, C(21)H(22)O(2)S, the cyclo-hexyl ring adopts a chair conformation while the phenyl ring makes a dihedral angle of 33.38 (5)° with the mean plane of the benzofuran fragment. In the crystal, mol-ecules are linked through weak inter-molecular C-H⋯O and C-H⋯π inter-actions.

Trehalose conjugates of 3-hydroxychromone (3HC) dyes have previously been utilized as fluorescence labels to detect metabolically active mycobacteria with a view facilitating point-of-care detection mycobacterial pathogens, especially Mycobacterium tuberculosis. We subjected the 3HC dye 2-(6-(diethylamino)benzofuran-2-yl)-3-hydroxy-4H-chromen-4-one (3HC-2) combined X-ray crystallography and den...