1-substituted-3-(2-phenylquinazolin-4-yl) thioureas (7) were produced by an intramolecular cycloaddition reaction of 1-substitued-3-[(2-cyanophenylimino) phenylmethyl] thioureas (3). These compounds in turn were prepared by the reaction of N-(2-cyanophenyl)benzimidoyl isothiocyanate (2) with primary amines. The structures of products 7 were confirmed by FTIR, 1H-NMR, 13C-NMR, mass spectroscopy and X-ray crystallography.
1-取代-3-(
2-苯基喹唑啉-4-基)
硫脲(7)是通过1-取代-3-[(2-
氰基苯基亚
氨基)苯基甲基]
硫脲(3)的分子内环加成反应生产的。这些化合物又是通过 N-(2-
氰基苯基)苯甲
亚胺基异
硫氰酸酯 (2) 与
伯胺反应制备的。产物7的结构经FTIR、 1H-NMR、 13C-NMR、质谱和X射线晶体学确证。