申请人:Jin Yuechun
公开号:US20110112327A1
公开(公告)日:2011-05-12
Provided is a process for the preparation of an N-substituted isothiazolinone derivative having the general formula (I), comprising reacting N-substituted 3-mercaptopropionamides of formula (II) or N,N′-bis-substituted 3,3′-dithiodipropionamides of formula (III) with sulfuryl chloride in the absence of solvents. Also provided is a process for the preparation of a compound having the general formula (III), comprising reacting a methyl ester of formula (IV) with an amine of formula (V) in a solvent of methanol. As no addition solvent is used in the process of the invention, the cost of manufacturing and pollution to the environment can be reduced.
提供了一种制备具有通式(I)的N-取代异噻唑啉衍生物的过程,包括在无溶剂的情况下将通式(II)的N-取代3-巯基丙酰胺或通式(III)的N,N'-双取代3,3'-二硫代丙酰胺与亚磺酰氯反应。还提供了一种制备具有通式(III)的化合物的过程,包括在甲醇溶剂中将通式(IV)的甲酯与通式(V)的胺反应。由于本发明过程中未使用任何添加溶剂,因此可以降低制造成本和对环境的污染。