| 摘要 |
<p>The invention relates to a method for producing 2 chloro 5 chloromethyl 1, 3 thiazole. According to said method, allyl isothiocyanate of formula CH2=CH CH2 NCS is reacted with 1 to 2 mol of a chlorinating agent per mol allyl isothiocyanate at 40 C to plus; 30 C in a solvent that is inert in the reaction conditions. 1 to 5 mol oxidizing agent per mol allyl isothiocyanate is added to the resulting reaction mixture at a reaction temperature of 0 C to the boiling temperature of the solvent used and 2 chloro 5 chloromethyl 1,3 thiazole is isolated from the reaction mixture and optionally, converted into highly pure 2 chloro 5 chloromethyl 1,3 thiazole by crystallization.</p> |
