A process for continuously producing 3-isothiazolinone...

Details A process for continuously producing 3-isothiazolinone... A process for continuously producing 3-isothiazolinone...

C - Chemistry, Metallurgy

07

D

C07D 275/03 (2006.01) C07C 321/04 (2006.01) C07C 323/03 (2006.01)

Patent

CA 2701635

The present application provides a process for continuously producing 3-isothiazolinone derivatives and intermediate products thereof, comprising continuously carrying out four steps, i.e., sulfuration, purification, amination and chlorination. Compared with the batch process of the prior art, the process of the present application may reduce the amount of manufacturing devices, lower energy consumption, simplify operations, and is therefore particularly suitable for mass production.

L'invention porte sur une méthode de préparation séquentielle de dérivés de 3-isothiazolone et de leurs intermédiaires, en quatre étapes: sulfuration, purification, amination et chloruration. Comparée à la méthode discontinue de l'art antérieur, cette nouvelle méthode demande moins d'équipements de production, réduit la consommation d'énergie et simplifie les opérations. Elle est en outre très applicable à la production à grande échelle.

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