HCID 70403914, compound → HCID 70403452, compound

Participants

Reaction Steps

8.0 g of tert.butyl 2(R)-acetoxy-4-(4-nitrophenyl)butanoate were dissolved in 200 ml of methanol saturated with ammonia at 0° C. and the mixture was stirred for 16 hours. Evaporation of the mixture in vacuo gave 7 g of an almost colorless oil which was dissolved in an equal volume of diethyl ether/n-hexane (1;1) and eluted through a silica gel column with the same solvent mixture to give 6 g of tert.butyl 2(R)-hydroxy-4-(4-nitrophenyl)butanoate as a colorless crystalline solid having a melting point of 41°-42° C.

Provenance & Evidence