4-Chlorophenyl isothiocyanate → N-(4-Chlorophenyl)-N'-cyanothiourea

Participants

Reaction Steps

The suspension of monosodium cyanamide (1.9 g, 29.4 mmol) in absolute ethanol (50 mL) was slowly treated with 4-chlorophenylisothiocyanate (5.0 g, 29.4 mmol). The reaction was allowed to stir at room temperature for 1 hour and then heated at 75° C. for 4 hours. The reaction was cooled to room temperature and the colorless solid was filtered and washed with ethanol to give the title A compound (5.4 g), m.p. >250° C.

Provenance & Evidence