반응 #54974
ord-a79709e505384a2687bef6e5cd029a87
반응 방정식
resorcinol
ethyl acetylacetate
ethanol
→
4-methyl-7-hydroxy-coumarin
수율 77.0%
반응 조건
상세 조건
See reaction.notes.procedure_details.
실험 절차
0.1 mole resorcinol and 0.1 mole ethyl acetylacetate in solution in 100 ml concentrated sulphuric acid are maintained at 5° C. for 3 hours. After recyrstallisation of the solid formed from ethanol, there are obtained 12.5 grams 4-methyl-7-hydroxy-coumarin, melting at 185° C.