Zhou Zeng-yong
2008
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Journal
Dyestuffs and coloration
Abstract
Basing on the toluene sulfonyl chloride,the methylamine and 4-nitro benzyl bromide,N-(4-Aminobenzyl)-N,4-dimethylbenzenesulfonamide was synthesized.A economical and convenient synthetic method was chosen.It has advantages in environmental protection and very strong technical value.First condensation reaction temperature was 70~80℃,the material allocated proportion was 1∶1.05,PH=7~8,It's rate reach above 95%,the product purity reach above 99%.Second condensation's solvent was the alcohol.Using the liquid caustic soda as the base,the reaction has avoided the potassium hydroxide which is used in the material.It has no waste water pollution.The electronation reaction used the skeleton Ni as the catalyst hydrogenation electronation reaction.It has no pollution to the environment.It's rate is high.The product's quality is good.And the operation is also easy.