Potassium Hydroxide → HCID 53688637, compound

Participants

Reaction Conditions

Reaction Steps

A mixture of aqueous potassium hydroxide solution (0.5 N, 92 mL) and ethyl 3,4-dimethyl-2-pentenoate (XI, 5.5 g) was stirred at 80° C. for 17 hours until the oily supernatent layer disappeared. The reaction mixture was cooled, acidified with aqueous sulfuric acid, (0.5 N, ca. 100 mL), and extracted with ether. The ethereal layer was washed with water, dried over anhydrous magnesium sulfate, filtered, and evaporated under reduced pressure to afford 3,4-dimethyl-2-pentenoic acid as a yellow liquid (X, 4.1 g, 91%).

Provenance & Evidence