Application of 28890-99-5,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.
b) Compound 7-1 (3.0 g, 7.0 mmol), benzimidazolo[1,2-a]benzimidazole (1.8 g, 8.4 mmol), and potassium phosphate (3.6 g, 29.8 mmol) were added to NMP (35 mL). The mixture was stirred at 190 C for 8 h. After reaction mixture was cooled at room temperature, it was diluted with 40 mL of water to give a solid. The solid was collected by filtration, and it was washed with 100 mL of water. The crude product was purified by by column chromatog20 raphy on silica gel eluting with toluene to yield 2.5 g (58%) of compound B-17 as a whitesolid. LC-MS (mlz) 615 [M+H]
These compound has a wide range of applications. It is believed that with the continuous development of the source of the synthetic route 5H-Benzo[d]benzo[4,5]imidazo[1,2-a]imidazole, its application will become more common.
Reference:
Patent; IDEMITSU KOSAN CO., LTD.; NISHIMAE, Yuichi; KOHLSTEDT, Julia; SCHAeFER, Thomas; NAGASHIMA, Hideaki; (114 pag.)WO2016/97983; (2016); A1;,
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem