The title compound, 5-(1H-indol-3-yl)-1-methyl-3-phenyl-1,6-benzodiazocin-2(1H)-one, was synthesized for the first time by a one-step, two-component reaction between 1-methylbenzimidazole and benzoylindolyl-3-acetylene. product characterized 1H-NMR, 13C-NMR, IR spectroscopy HRMS.

In the title compound C18H20N2O2, the morpholine ring adopts a chair conformation with the exocyclic N-C bond in an equatorial orientation. The N atom of the morpholine ring and the C atom of the carbonyl group are in an anti conformation about the central C-C bond [torsion angle = -162.92 (11)°] and the dihedral angle between the planes of the benzene ring and the pyridine ring is 83.30 (5)°. ...

A chromeno[4,3-d]pyrazolo[3,4-b]pyridinone derivative 3 bearing thieno[2,3-d]pyrimidine moiety, 5-methyl-1-phenyl-3-(thieno[2,3-d]pyrimidin-4-yl)chromeno[4,3-d]pyrazolo[3,4-b]pyridin-6(3H)-one, was efficiently prepared in 75% yield by the reaction of 3-phenyl-1-(thieno[2,3-d]pyrimidin-4-yl)-1H-pyrazol-5-amine 1 with 3-acetyl-2H-chromen-2-one 2 presence FeCl3-SiO2 as a catalyst refluxing ethanol...