title: N-Butyl-2,4-dinitro-aniliniump-toluenesulfonate as a highly active and selective esterification catalyst.
abstract: N-Butyl-2,4-dinitro-aniliniump-toluenesulfonate (1) was found to be a very active esterification catalyst that promotes condensation of equal mole amount of carboxylic acids and alcohols under mild conditions. This catalyst is also highly selective towards carboxylic acid and alcohol substrates at ambient temperature.
authors.affiliation: Department of Chemistry and Biochemistry, Southern Illinois University, 1245 Lincoln Drive, Carbondale, Illinois 62901, U.S.A.
authors.forename: Narsimha
authors.initials: N
authors.lastname: Sattenapally
authors.affiliation: Key Laboratory of Combinatorial Biosynthesis and Drug Discovery, Ministry of Education and Wuhan University, School of Pharmaceutical Sciences, Wuhan 430071, P.R. China.
authors.forename: Wei
authors.initials: W
authors.lastname: Wang
authors.affiliation: Department of Chemistry and Biochemistry, Southern Illinois University, 1245 Lincoln Drive, Carbondale, Illinois 62901, U.S.A.
authors.forename: Huimin
authors.initials: H
authors.lastname: Liu
authors.affiliation: Department of Chemistry and Biochemistry, Southern Illinois University, 1245 Lincoln Drive, Carbondale, Illinois 62901, U.S.A.
authors.forename: Yong
authors.initials: Y
authors.lastname: Gao
keywords: anilinium p-toluenesulfonate; catalyst; esterification; selectivity