Niknam, K. published the artcileSynthesis of 2-substituted benzimidazoles and bis-benzimidazoles by microwave in the presence of alumina-methanesulfonic acid, SDS of cas: 5411-14-3, the publication is Journal of the Iranian Chemical Society (2007), 4(4), 438-443, database is CAplus.
A microwave-assisted method for the synthesis of 2-substituted benzimidazoles in the presence of alumina-methanesulfonic acid (AMA) is reported. In addition, by this method some new bis-benzimidazoles, e.g., I (X = O, S), from the direct reaction of 1,2-phenylenediamine and dicarboxylic acid under microwave irradiation in good to excellent yields are described.
Journal of the Iranian Chemical Society published new progress about 5411-14-3. 5411-14-3 belongs to catalysis-chemistry, auxiliary class Carboxylic acid,Benzene,Ether, name is 2,2-(1,2-Phenylenebis(oxy))diacetic acid, and the molecular formula is C10H10O6, SDS of cas: 5411-14-3.
Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia