| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 5271486 | Tetrahedron Letters | 2013 | 4 Pages |
Abstract
Treatment of mesoionic 1,3-oxazolium-5-olates with TosMIC in the presence of a base causes a novel ring transformation affording 2(1H)-pyrazinones in moderate yields. The origin of C-2 carbonyl oxygen in the product was elucidated to be molecular oxygen, based on 18O-labeling experiments.
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Physical Sciences and Engineering
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