HCID 12810581, compound → HCID 12810582, compound

Participants

Reaction Steps

8.0 g 3-(2-benzyloxy-phenyl)-2-cyclopenten-1-one are stirred in 80 ml of 20% HBr/glacial acetic acid for 1 hour at room temperature. After evaporation of the glacial acetic acid, the residue is dissolved in methylene chloride and neutralized by shaking with a sodium-hydrogen-carbonate solution. After recrystallization from diisopropyl ether/diethyl ether, 3.7 g of 3-(2-hydroxyphenol)-2-cyclopenten-1-one are obtained with a melting point of 162°-165° C.

Provenance & Evidence