反应详情

3,5-Dichloroaniline was converted to 3-(3,5-dichlorophenyl)-5-methyl-4-thiazolidinone in accordance with the procedure of Example 4. The only difference was that thiolactic acid was used instead of mercaptoacetic acid. The 3-(3,5-dichlorophenyl)-5-methyl-4-thiazolidinone had a melting point of 80°-88° C. This thiazolidinone (18 g) was oxidized with one equivalent of m-chloroperoxybenzoic acid (14 g) in the same manner as described in Example 2. After removal of the solvent, the reaction product was recrystallized from isopropyl alcohol to yield 3-(3,5-dichlorophenyl)-5-methyl-4-thiazolidinone 1-oxide, m.p. 146°-149° C.

1. customAfter removal of the solvent
2. customthe reaction product was recrystallized from isopropyl alcohol