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| Content Provider | Royal Society of Chemistry (RSC) |
|---|---|
| Author | Sakurai, Yuzo Tamaru, Kenzi Onishi, Takaharu |
| Copyright Year | 1971 |
| Abstract | The isomerization of cis-2-butene and 1-butene over alumina catalyst in the presence of perdeutero-propylene was studied in an attempt to elucidate the mechanism of n-butene isomerization. Microwave spectroscopy combined with gas chromatography and mass spectrometry was employed for the analyses of the reactants and products. Deuterium on the C1 atom of perdeutero-propylene, e.g., CD2, showed extensive exchange with the hydrogens in the coexisting butenes. Correspondingly, hydrogens at the C1 position of 1-butene were replaced by deuterium. When this deuterium exchange was assumed to proceed independently of the isomerization of n-butene, the other features of the deuterium distribution resulting from the isomerization in the presence of perdeutero-propylene were similar to those obtained in the reaction of n-butene over deuterated p-toluene sulphonic acid. It was therefore concluded that the isomerization of n-butene over alumina, or at least the doublebond migration, occurs on some protonic sites formed by the adsorption of the olefin molecules; and that the deuterium scrambling between the terminal olefins, such as propylene and 1-butene, proceeds independently of the isomerization process. |
| Starting Page | 3094 |
| Ending Page | 3099 |
| Page Count | 6 |
| File Format | |
| ISSN | 00147672 |
| Volume Number | 67 |
| Journal | Transactions of the Faraday Society |
| DOI | 10.1039/TF9716703094 |
| Language | English |
| Publisher | Royal Society of Chemistry |
| Access Restriction | Open |
| Subject Keyword | Aluminium oxide Deuterium Isomerization 2-Butene 1-Butene Gas chromatography Propene Alkene Adsorption Rotational spectroscopy Carboxylic acid Scrambler Mass spectrometry |
| Content Type | Text |
| Resource Type | Article |
| Subject | Physics and Astronomy Physical and Theoretical Chemistry Engineering |
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