Sodium Hydroxide → HCID 19595593, compound

Participants

Reaction Steps

1 g (0.0022 mole) of (Z)-2-[3-[1-(4-chlorophenyl)-1-[4-(methylsulphonyl)phenyl]methylene]-2-oxo-pyrrolidin-1-yl]ethyl acetate are placed in solution in a mixture of 13 ml of ethanol and 11 ml of water and treated with 0.1 g (1.1 eq.) of sodium hydroxide. The medium is stirred at ambient temperature for 4 h, then the ethanol is evaporated off. The aqueous phase is extracted with dichloromethane. The organic phase is washed with water, dried and concentrated. The residue is taken up into t-butyl methyl ether. 0.7 g of (Z)-3-[1-(4-chlorophenyl)-1-[4-(methylsulphonyl)phenyl]methylene]-1-(2-hydroxyethyl)-pyrrolidin-2-one are thus obtained as a yellow solid of melting point 187-188° C.

Provenance & Evidence