| abstract |
(57) Abstract: An industrial method for producing optically active 4-mercapto-2-pyrrolidinone. A process for producing a compound (4), comprising reacting a compound having the general formula (1) with a compound (2) in a water-containing solvent to give a compound (3), and hydrolyzing with a base. Embedded image [In the formula, R 1 and R 2 represent an alkyl group having 1 to 6 carbon atoms, a phenyl group having a substituent and a patterned phenyl group (the substituent is an alkyl group having 1 to 6 carbon atoms, Represents an alkoxy group having a or a halogen atom). M represents an alkali metal. ] |