In which method Acid catalyzed dehydration mechanism for alcohols is best described?
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101 Citations | Steady state kinetics and measured pyridine inhibition of ethanol dehydration and dehydrogenation rates on γ-alumina above 623 K show that ethanol dehydrogenation can be described with an indirect hydrogen transfer mechanism to form acetaldehyde and ethane and that this mechanism proceeds through a shared surface intermediate with ethylene synthesis from ethanol dehydration. |
28 Citations | Thus, for an alumina catalyst alcohol dehydration occurs by a concerted elimination mechanism. |
20 Citations | This and some other results support a two-step ionic mechanism for the dehydrogenation of alcohols. |
| The nature of the gelation method was found to be important, with an alkaline method preferred, as an acidic method was found to initiate a further side reaction, the acid catalyzed dehydration of the secondary alcohol. | |
38 Citations | Dehydration and dehydrogenation of alcohols are catalyzed by the acidic and the basic sites, respectively, and the reactions give a diagnostic means of knowing acid–base character of solid surfaces. |
| As the OH/SePy exchange can be performed in minutes, the overall process is an exceptionally efficient procedure for the dehydration of primary alcohols. | |
16 Citations | The procedure enables the direct dehydration of primary, secondary, and tertiary benzylic alcohols with aliphatic alcohols in the absence of solvent to selectively produce unsymmetrical ethers in high yields with low catalyst loading. |
31 Citations | The analysis indicates that the dehydration reaction is catalyzed by a small fraction of enzyme that is reverse-protonated (i. e., Lys345-NH(2), Glu211-COOH), whereas the hydration reaction is catalyzed by a larger fraction of the enzyme that is typically protonated (i. e., Lys345-NH(3)(+), Glu211-COO(-)). |
32 Citations | The higher acid character of the latter group of catalysts promotes dehydration and ring opening steps, thus enhancing the selectivity towards linear alcohols. |
| In alcohol/fuel mixtures, dehydrogenation of the alcohols also appeared to be the major mechanism. |
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