반응 #54186
ord-789a08dd972b4ebabbf1cd68f5b9406e
반응 조건
상세 조건
See reaction.notes.procedure_details.
실험 절차
A solution of 4-bromo-6-hydroxy-2-methyl-2H-pyran-3(6H)-one (0.0025 mole) in 20 ml of 35% phosphoric acid was refluxed for about 5 hours. Maltol (34%) was isolated by the method of Example 1.