Synthetic Route of C7H7N3In 2020 ,《Efficient Synthesis of Pyrimido[1,2-a]Benzimidazoles and Ethyl Pyrimido[1,2-a]Benzimidazole-3-Carboxylates Using Bronsted Acidic Ionic Liquid Supported on Nanoporous Na+-Montmorillonite》 appeared in Polycyclic Aromatic Compounds. The author of the article were Makhsous, Masoumeh; Shirini, Farhad; Seddighi, Mohadeseh; Mazloumi, Masoumeh. The article conveys some information:
Nanoporous sodium montmorillonite clay (Na+-MMT) was successfully modified with 1-methyl-3-(trimethoxysilylpropyl)-imidazolium hydrogen sulfate (Na+-MMT-[pmim]HSO4). This immobilized acidic ionic liquid showed excellent catalytic activity for the synthesis of pyrimido[1,2-a]benzimidazoles and Et pyrimido[1,2-a]benzimidazole-3-carboxylates via three-component reactions between aldehydes, 2-aminobenzimidazole and malononitrile or β-dicarbonyl compounds The procedure gave the products in high yields in very short reaction times at 100° under solvent-free conditions. Also, this catalyst can be reused for five times without loss of its catalytic activity. The experimental process involved the reaction of 1H-Benzo[d]imidazol-2-amine(cas: 934-32-7Synthetic Route of C7H7N3)
1H-Benzo[d]imidazol-2-amine(cas: 934-32-7) can be used in the hydrolysis of a choline carbonate. It was also used in the synthesis of imidazo[1,2-a]benzimidazoles.Synthetic Route of C7H7N3
Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem