Formaldehyde → HCID 9855557, compound

Participants

Reaction Conditions

Reaction Steps

Penicillaminamide (74.0 g, 0.50 mol) was dissolved in distilled water (800 ml) and added with 37% formalin (60.8 g, 0.75 mol). The mixture was heated with stirring at 50° C. under normal pressure, allowed to react for 2 hours and cooled. Subsequently, water was evaporated by using an evaporator. The residue was washed with acetone to obtain white crystals of 5,5-dimethyl-1,3-thiazolidine-4-carboxylic acid amide (75.5 g, 0.47 mol). The yield to penicillaminamide was 94.4 mole %.

Provenance & Evidence