HCID 13341009, compound → 84367-15-7

Participants

Reaction Steps

2.20 g of (R)-1-(3-benzyloxy-4-methoxybenzoyl)-3-hydroxy-2-pyrrolidinone are hydrogenated in 60 ml of tetrahydrofuran over 1.80 g of 5% palladium/carbon with hydrogen at atmospheric pressure. After removal of the catalyst by filtration, concentration of the filtrate and recrystallization of the residue from ethyl acetate/n-hexane, there is obtained (R)-1-(3-hydroxy-4-methoxybenzoyl)-3-hydroxy-2-pyrrolidinone of melting point 129°-131°; [α]D20 =+175°; [α]54620 =+216°; [α]43620 =+451° (chloroform, c=1.0).

Provenance & Evidence