Yield:7398-69-8 97.65%

Reaction Conditions:

with sodium hydroxide at 0 - 44; pH=6.4;Concentration;

Steps:

1 Example 1

The sump by adding 33% dimethylamine solution 150 parts, heating, stirring for 30 °C bubble started from the, receiving tank by adding 43 parts 33% dimethylamine solution, the temperature is controlled at 7 °C. Stirring to 85 °C by adding the 2 concentrations in order to 50% of sodium hydroxide solution, free of the dimethylamine more easily is to boil off, continue to heating, stirring for 100 °C end of the. To obtain: the incomplete 83.4 parts, dimethylamine content 2.2% ; dimethylamine solution concentration of 103 parts (including the absorption liquid, in order to with), dimethylamine content 56.4%. In the is provided with a stirrer, thermometer, condenser tube, dropping funnel of the three-port flask after adding the concentration of 56.4% dimethylamine solution 100 parts, in 0 °C slowly adding 30 allyl chloride ; for 3 °C -5 ° C at the same time dropping 180 allyl chloride and 50% sodium hydroxide solution of 100 parts, to control the pH value of 9.5-10.5 between; material feeding is finished, the temperature is increased to 44 °C reflux, the reaction to the pH value equal to 6.4, stop heating, and cooling; filtering, receive nacl 64.8 parts, dimethyl diallyl ammonium chloride aqueous solution 325.3 parts, through determining, dimethyl diallyl ammonium chloride is in a content of 60.8%, the yield is 97.65% (according to b a amine idea ).

References:

CN104557569,2016,B Location in patent:Paragraph 0031; 0032; 0033