Application of 108-47-4, Chemical engineers work across a number of sectors, processes differ within each of these areas, and are directly involved in the design, development, creation and manufacturing process of chemical products and materials. 108-47-4, Name is 2,4-Dimethylpyridine, molecular formula is C7H9N. In a Article，once mentioned of 108-47-4
Reactions of pyridines and imidazoles with substituted phenyl acetates and trifluoroacetates have been studied in acetonitrile and in water-acetonitrile containing 0.56 mol/dm3 of water.The water isotope effects, steric effects, the effect of water in the reaction medium, and the derived Broensted beta and Hammett rho values have been used as mechanistic criteria.Pyridines and imidazoles catalyse the hydrolysis of phenyl trifluoroacetates by general base catalysis while imidazole acts as nucleophile toward 4-nitrophenyl and 2,4-dinitrophenyl acetates.As indicated by the second-order dependence on amine concentration beside the first-order term in amine, the reaction of imidazole exhibits general base catalysis in the case of both phenyl acetates and phenyl trifluoroacetates.This reaction obviously is general base-catalysed nucleophilic reaction of imidazole.The activation parameters DeltaH* and DeltaS* derived for the reactions of pyridine and imidazole with 4-nitrophenyl trifluoroacetate and for the reaction of imidazole with 4-nitrophenyl acetate are consistent with the proposed reaction mechanisms.
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Reference：
Chiral nitrogen ligands in late transition metal-catalysed asymmetric synthesis—I. Addressing the problem of ligand lability in rhodium-catalysed hydrosilations,
Nitrogen-Containing Ligands for Asymmetric Homogeneous and Heterogeneous Catalysis