Comparison of different organic test reactions over acid–base catalysts Original Research Article

Three test reactions were studied: transformations of 1-phenylethanol (R1), 2-propanol (R2), and 2-methyl-3-butyn-2-ol (R3) over several oxide catalysts. Results were correlated to acid–base properties in these solids, calculated by using temperature programmed desorption–mass spectrometry (TPD–MS) techniques with pyridine, 2,6-dimethylpyridine and carbon dioxide as probe molecules described elsewhere. The three reactions lead to concordant results on acid–base characteristic of catalysts. R1 and R2 test reactions are less complicated (less products) than R3. However, the latter follows specific ways depending on our catalyst having acid, basic or acid–base pair sites, whereas R1 and R2 are less specific.