Synthetic method for organically compounding intermediate cyanogen
A technology for the synthesis of ethanedinitrile and a synthetic method, which is applied in the field of synthesis of the organic synthesis intermediate ethanedinitrile, can solve the problems of low final yield and complicated process, shorten the reaction time, reduce intermediate links, and improve the reaction rate. Yield effect
Inactive Publication Date: 2018-07-10
CHENGDU DONG DIAN AI ER TECH
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Abstract
Provided is a synthetic method for organically compounding intermediate cyanogen. The method mainly comprises the following steps that 5 moles of 1,4-diiodobutane dissolves in 5 liters of acetone solution, the stirring speed is controlled at 110-150 revolutions per minute, 6-7 moles of 4-methyl-benzonitrile is added into, the temperature of the solution is heated to 60-70 DEG C, circulation refluxis carried out for 90-110 minutes, the temperature of the solution is reduced to 10-15 DEG C, filtering is carried out, a filter mass is washed by a methylamine solution, and then poured into a potassium iodide solution, stratification occurs, an oil layer is washed by a sodium chloride solution, pentane solution and ethyl acetate solution in sequence, reduced pressure distillation is carried out, cut fraction of 50-55 DEG C is collected, dehydration is carried out by using a dehydrating agent, and finished cyanogen is obtained.
Application Domain
Carboxylic acid nitrile preparationOrganic compound preparation
Technology Topic
Revolutions per minuteBenzonitrile +12
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