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The layered transition metal oxide HNbMoO6 is demonstrated to catalyze the esterification of lactic acid (a hydroxycarboxylic acid) with activity superior or comparable to conventional ion-exchange resins. Layered HNbMoO6 also catalyzes the esterification of propionic acid (a carboxylic acid) in the presence of lactic acid, despite exhibiting negligible activity for any carboxylic acid as the sole...
Carbon material prepared from d-glucose has been examined as a solid acid catalyst. Sulfonation of incompletely carbonized d-glucose results in amorphous carbon consisting of small polycyclic aromatic carbon sheets with high density of SO 3 H groups. The carbon material exhibits remarkable catalytic performance for the esterification of higher fatty acids. This can be attributed to high density...
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