Takata, Yoshiyuki published the artcileThe modified synthetic reaction of 2-alkylbenzimidazoles. Condensation of o-phenylenediamine with fatty acids in p-toluenesulfonic acid, Safety of 2-Butylhexanoic acid, the publication is Hokkaido Daigaku Kogakubu Kenkyu Hokoku (1980), 45-9, database is CAplus.
In the preparation of benzimidazoles (89-99% yield) by condensing RCO2H (R = C5-17?n-alkyl) with m-H2NC6H4NH2 1 h at 170-200¡ã, the presence of p-MeC6H4SO3H increased the yields. Even less reactive acids, such as Me3CCO2H and Bu2CHCO2H, gave the corresponding imidazoles in 26-84% yield.
Hokkaido Daigaku Kogakubu Kenkyu Hokoku published new progress about 3115-28-4. 3115-28-4 belongs to catalysis-chemistry, auxiliary class Aliphatic Chain, name is 2-Butylhexanoic acid, and the molecular formula is C9H11BO4, Safety of 2-Butylhexanoic acid.
Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia