Water → HCID 53812515, compound

Participants

Reaction Steps

A stirred solution of 4,5-dimethyl-6-oxo-7-bromo-7-propyl-7,8-dihydro-6H-indeno[5,4-b]furan-2-carboxylic acid (0.8 g., 0.0022 mole) and anhydrous lithium bromide (0.49 g., 0.0056 mole) in dimethylformamide (10 ml.) is heated at 95° in an inert atomosphere for one hour then poured into water (100 ml.) affording 4,5-dimethyl-6-oxo-7-propylidene-7,8-dihydro-6H-indeno-[5,4-b]furan-2-carboxylic acid which melts at 301°C after recrystallization from ethanol.

Provenance & Evidence