反应详情

温度

100 °C

To 200 g of malic acid was added 175 cc of concentrated sulfuric acid and 1 g of 65% oleum. The mixture was heated to 100° C. for two hours, cooled to 30° C. and diluted with 300 cc of water. The reaction mixture was cooled to 25° C. and filtered to give coumalic acid.

1. temperaturecooled to 30° C.
2. temperatureThe reaction mixture was cooled to 25° C.
3. filtrationfiltered