Abstract Synthetic chemists have learned to mimic nature in using hydrogen bonds and other weak interactions dictate the spatial arrangement of reaction substrates stabilize transition states enable highly efficient selective reactions. The activation a catalyst molecule itself by hydrogen‐bonding networks, order enhance its catalytic activity achieve desired outcome, is less explored organic s...

This study focused on bio-oil production by thermochemical liquefaction. For the reaction, burnt pine heartwood was used as feedstock material, 2-Ethylhexanol (2-EHEX) a solvent, p-Toluenesulfonic acid (pTSA) catalyst, and solvent for washing acetone. The procedure consisted of moderate-acid-catalysed liquefaction process, it applied at three different temperatures, 120, 140, 160 °C, 30, 105, 1...

The synthesis 2-tert-butyl-4-methylphenol is of great significance because its wide application in industry, and the development a highly efficient catalyst necessary for alkylation p-cresol tert-butyl alcohol. Here, an mild method was established. Caprolactam chosen as hydrogen-bonding acceptor; p-toluenesulfonic acid employed donor, deep eutectic solvent (DES) prepared to catalyze reaction. s...

Novel bio-based aliphatic copolyesters, poly(lactic acid-co-10-hydroxy decanoate) (P(LA-co-HDA), PLH), were successfully synthesized from lactic acid (LA) and 10-hydroxycapric acid (HDA) by a thermal polycondensation process, in the presence of p-toluenesulfonic acid (p-TSA) and SnCl2·2H2O as co-catalyst. The copolymer structure was characterized by Fourier transform infrared (FTIR) and proton ...

The study of geochemical transformations undergone by `biological markers' after their incorporation into sediments is an important ®eld of organic geochemistry. Combined with laboratory simulation experiments, molecular mechanics calculations have been shown to be very useful to establish the reaction pathways, and to predict intermediate components and stable reaction end products, especially...