Potassium Cyanide → N'-(4-cyano-3-isopropyl-5-isothiazolyl)-N,N-dimethylcyanoformamidine

Participants

Reaction Steps

In the manner of Example VII, 7 g of N'-(4-cyano- 3-isopropyl-5-isothiazolyl)-N,N-dimethylchloroformamidine, 3.6 g of anhydrous potassium cyanide, and a catalytic amount of 2,3,11,12-dibenzo-1,4,7,10,13,16-hexaoxacycloocta- 2,11-diene in 200 ml of dry aceto-nitrile were allowed to react for several days. After solvents were removed under reduced pressure, the residue was recrystallized from methylcyclohexane to yield 4.3 g of N'-(4-cyano-3-isopropyl-5-isothiazolyl)-N,N-dimethylcyanoformamidine, mp 78°-79°. The ir and nmr spectra were consistent with the assigned structure.

Provenance & Evidence