Cui, Wen-hui published the artcileSynthesis of 1,1′-[1,4-phenylenebis(methylene)]bis[1H-benzimidazole] isomers under microwave irradiation conditions, SDS of cas: 5411-14-3, the publication is Huaxue Shiji (2007), 29(8), 487-489, database is CAplus.
The title compounds were synthesized under microwave-irradiation conditions using benzenediamine and 2,2′-[phenylenebis(oxy)]bis[acetic acid] isomers as starting materials in the presence of polyphosphoric acid (PPA) and 4 mol/L hydrochloric acid as catalyst. The power of microwave irradiation applied was 650-850 W. The reaction time was 10-15 min. Product structures were confirmed by IR, 1HNMR, 13CNMR, MS and elementary anal.
Huaxue Shiji 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