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Engaging a thiazole-DMAD zwitterion in novel one-pot multicomponent reactions involving chromones. Expeditious synthesis of thiazolo- and chromenothiazolopyridines |
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| Authors: | Michael A. Terzidis Constantinos A. Tsoleridis |
| Affiliation: | Laboratory of Organic Chemistry, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece |
| Abstract: | The 1,4-dipole derived from 4,5-dimethylthiazole and DMAD has been shown to react readily with chromone-3-carboxaldehydes resulting, after an unusual rearrangement, in the facile synthesis of thiazolo[3,2-a]pyridine derivatives; in some instances tetracyclic chromenothiazolopyridines were formed. |
| Keywords: | Acetylenedicarboxylate Chromone-3-carboxaldehydes Chromenothiazolopyridines Multicomponent reactions Thiazolopyridines |
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