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| Content Provider | Royal Society of Chemistry (RSC) |
|---|---|
| Author | Wise, Henry Dozono, T. Thomas, D. W. |
| Copyright Year | 1973 |
| Abstract | To study the mechanism of acrylonitrile formation, the ammoxidation of [3-13C]propene was studied in the presence of a bismuth molybdate catalyst on a silica support. The reaction was carried out at 723 K with a conversion of about 40 vol % of the propene to acrylonitrile and a small amount of acetonitrile. The 13C distribution among the reaction products was examined quantitatively with a high-resolution mass spectrometer. Half of the 13C in the acrylonitrile was found to be in the CN-group and the other half in the C2H3-group. This result points to a symmetrical intermediate, such as an allylic species, in the ammoxidation reaction. A similar intermediate was observed in the catalytic oxidation of propene to acrolein. The total 13C content in the acetonitrile amounted only half that of the acrylonitrile, which indicates carbon-carbon bond fissure of the allylic intermediate in the mechanism of acetonitrile formation. Ammoxidation of propene does not seem to involve acrolein as an intermediate. As a matter of fact, the addition of ammonia to a mixture of propene + oxygen + helium completely suppresses acrolein formation at 623 K. |
| Starting Page | 620 |
| Ending Page | 623 |
| Page Count | 4 |
| File Format | |
| ISSN | 03009599 |
| Volume Number | 69 |
| Journal | Journal of the Chemical Society, Faraday Transactions 1 |
| DOI | 10.1039/F19736900620 |
| Language | English |
| Publisher | Royal Society of Chemistry |
| Access Restriction | Open |
| Subject Keyword | CN-group Oxygen Acrylonitrile Chemical bond Molybdate Ammoxidation Helium Silicon dioxide Acrolein Ammonia Propene Acetonitrile Bismuth Mass spectrometry |
| Content Type | Text |
| Resource Type | Article |
| Subject | Chemistry |
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