Dimethylformamide → HCID 17974869, compound

Participants

Reaction Conditions

Reaction Steps

Oxalyl chloride (0.6 ml) was added to a suspension of 4-trifluoromethylnicotinic acid (1 g) and a catalytic amount of N,N-dimethylformamide in dichloromethane, and stirred at 20° C. for 1 hour. 4-Benzyl-5-imino-1,3,4-thiadiazoline hydrobromide (1.44 g) was added under ice cooling, and was stirred at 20° C. for 1 hour. The mixture was then washed (water), dried (magnesium sulfate), evaporated and the residue recrystallized (ethanol) to give 4-benzyl-5-(4-trifluoromethyl-3-pyridylcarbonyl)imino-1,3,4-thiadiazoline (0.3 g, Compound E-39).

Provenance & Evidence