反应详情

240.6 g (0.9 mol) of 2-furyl-2-isopropylmalonic acid diethyl ester were dissolved in 500 ml of dimethyl sulfoxide, treated with 2000 ml of 2N sodium hydroxide solution and heated to reflux for 2 hours. After cooling, o the reaction mixture was poured into dilute sulfuric acid and extracted exhaustively with ether. The organic extracts were thereafter dried and the solvent was evaporated under reduced pressure, to obtain 148.7 g (98%) of (±) 2-(2-furyl)-3-methyl- butyric acid in the form of a thick yellowish oil.

1. temperatureheated
2. temperatureto reflux for 2 hours
3. temperatureAfter cooling, o the reaction mixture
4. extractionextracted exhaustively with ether
5. customThe organic extracts were thereafter dried
6. customthe solvent was evaporated under reduced pressure