Method of preparing N-(2-aminoalkyl)-2-aminoethoxylate ethane sulfonate

摘要

The present invention relates to a synthesis method of thionate diamine by the reaction of alkali metal isethionate with diols to form alkali metal isethionate ethoxylate having the following structural formula:HO(CH2CH2O)nCH2CH2SO3AThe above isethionate ethoxylate is then reacted with aliphatic diamine having a Carbon number of 2 to 6 to form a series of N-(2-aminoalkyl)-2-aminoethyoxylate ethane sulfonate having the following structure formula:H2N-(CH2)m-NH-(CH2CH2O)nCH2CH2SO3Awherein m=2-12 n=1-3 A=K or Na