Some common heterocyclic compound, 28890-99-5, name is 5H-Benzo[d]benzo[4,5]imidazo[1,2-a]imidazole, molecular formula is C13H9N3, traditional synthetic route has been very mature, but the traditional synthetic route has various shortcomings, such as complicated route, low yield, poor purity, etc, below Introduce a new synthetic route. SDS of cas: 28890-99-5
c) Intermediate C-3 (2.23 g, 10.9 mmol), benzimidazolo[1,2-a]benzimidazole (2.26 g, 10.9 mmol), and potassium phosphate (2.78 g, 13.1 mmol) were suspended in NMP (66 mL). The mixture was stirred at 150 C for 48 h. After the reaction mixture was cooled at roomtemperature, 66 mL of EtCH and 244 mL of water were added there to give a solid. Thissolid was collected by filtration, and it was purifed by column chromatography on silica geleluting with a mixed solvent of heptane and CHCI3 to yield 1.74 g (4 1%) of compound 1-1as a white solid. LC-MS (mlz) 391
These compound has a wide range of applications. It is believed that with the continuous development of the source of the synthetic route 28890-99-5, its application will become more common.