Sodium Hydroxide → HCID 178484362, compound

Participants

Reaction Steps

In 30 ml of ethanol was suspended 2.25 g of 2,5-dimercapto-1,3,4-thiadiazole, and 30 ml of 1N-sodium hydroxide solution was added to the suspension. The mixture was stirred at room temperature for 30 minutes. To the mixture was added 2.36 g of N,N-dimethylchloroacetamidine. The mixture was stirred at room temperature for an hour and concentrated under reduced pressure. The precipitating crystals were collected by filtration and washed with cold water and then a (1:1) mixture of methanol and ethyl ether to obtain 1.87 g of 2-(N,N-dimethylamidinomethylthio)-5-mercapto-1,3,4-thiadiazole as colorless crystals (mp 95°-97° C.).

Provenance & Evidence