Synthesis of heterocyclic compounds VII.
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M. Quinteiro; C. Seoane; J.L. Soto
📂
Article
📅
1977
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Elsevier Science
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French
⚖ 121 KB
Only few methods for 4H-pyran synthesis are known. In them, carbonyl compounds (Z-4). pyrylium salts (5-7) or y-pyrones (8.9) a're used as starting materials.