2,4-Dimethylthiazole CAS NO.541-58-2

used as a daily, edible essence production method by reaction with phosphorus pentasulfide acetamide, chloride and acetone condensation. adding anhydrous benzene to react in a bottle, and add acetamide and powder mixture of phosphorus pentasulfide, heated in water bath. plus chlorinated benzene solution of acetone, plus the return for 30 minutes. then add water to the reaction mixture, namely layered, abandon to the upper red liquid, take the lower fluid and sodium hydroxide alkaline, plus ether extraction. dry extract with anhydrous sodium sulfate. filtering, atmospheric distillation, collect 140-140 ℃ fraction, again will collection to distillation, collected 143-145 ℃ fraction is 2, 4-2 methyl thiazole.