Formation de Chromones (O,S,Se) et D'Aut
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A. Ruwet; D. Janne; M. Renson
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Article
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2010
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Wiley (John Wiley & Sons)
⚖ 347 KB
## CONTRIBUTION A L'ETUDE DES REACTIONS DE PECHMANN ET SIMONIS A. RUWET, D. JANNE et M. RENSON The Pechmann and Simonis reactions are investigated with phenols (0, S, Se). Thio and selenophenols give thio-1 and seleno-1 chromones (Simonis reaction). Several cyclizing agents are studied. Ethyl ace