Post-efficiency promoter N-cyclohexyl-2-benzothiazole sulfenamide synthesis method

摘要

#$%^&*AU2018101114A420180906.pdf#####7 Post-efficiency promoter n-cyclohexyl-2-benzothiazole sulfenamide synthesis method Abstract 5 The present invention discloses post-efficiency promoter N-cyclohexyl-2-benzothiazole sulfenamide synthesis method, comprises the following steps: 2-thiomethoxybenzothiazole and dichloromethane solution are added to the reaction vessel at a temperature, potassium nitrate solution and lead dioxide powder is 10 added, controlled the stirring speed, reacts; reduces the temperature, standing, precipitated the solid, filter, washed with sodium chloride solution for several times, washed with the propyl ether solution for several times, recrystallizes in the epichlorohydrin solution, dehydrated with dehydrating agent, gets the finished product N-cyclohexyl-2-benzothiazole sulfenamide. 15 Figure 1100 '1/ 80 10 60 I 40[Ii 20 4000 3500 3000 2500 2000 1500 1000 500 Figure 1