N-arylideneisoxazolones. A novel coloure
N-arylideneisoxazolones. A novel coloured immonium enolate structure derived from aromatic aldehydes
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Gury Zvilichovsky
📂
Article
📅
1972
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Elsevier Science
🌐
French
⚖ 180 KB
Dihydroxy-4-phenylisoxazole (I) which has been described recently1 reacts with aromatic aldehydes to give red condensation products 4-phenylisoxazol-S-onium-J-enolates (II), in 50-1000 to be located at the 3 position rather than at the 5