反应详情

To a solution of ammonium dithiocarbamate (1.4 g, 12.4 mmol) in 25 mL of ethanol was added 2-bromocyclohexanone (2.2 g, 12.4 mmol). The reaction was stirred at rt overnight. The next morning the reaction was heated at 70° C. for 1 h. The solvent was removed under reduced pressure. The product was subjected to flash chromatography (3:1 hexane/ethyl acetate) to recover a yellow solid. Recrystallization from ethyl acetate afforded 0.54 g of 2-mercapto-4,5,6,7-tetrahydrobenzothiazole.

1. temperatureThe next morning the reaction was heated at 70° C. for 1 h
2. customThe solvent was removed under reduced pressure
3. customto recover a yellow solid
4. customRecrystallization from ethyl acetate