Acetone → 4-Thiazolidinecarboxamide, 2,2,5,5-tetramethyl-

Participants

Reaction Steps

Penicillaminamide (74.0 g, 0.50 mol) was dissolved in distilled water (800 ml) and added with acetone (58.0 g, 1.00 mol). The mixture was allowed to react at 30° C. for 1 hour with stirring under normal pressure and cooled. Then, water and acetone were evaporated by using an evaporator. The residue was washed with acetone to obtain white crystals (86.5 g, 0.46 mol) of 2,2,5,5-tetramethyl-1,3-thiazolidine-4-carboxylic acid amide. The yield to penicillaminamide was 92.0 mole %.

Provenance & Evidence