| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 5222577 | Tetrahedron | 2009 | 6 Pages |
Abstract
A unique strategy for the synthesis of highly stable unusual charge-separated pyridinium-, isoquinolinium-, quinolinium-, and N-methylimidazolium-tetronic acid zwitterions from the reaction of pyridine, isoquinoline, quinoline, and N-methylimidazole with dialkyl acetylenedicarboxylates and 3-chlorotetronic acid in EtOH at room temperature is described.
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