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2-氨基-4-乙酰胺基苯甲醚合成新工艺

2017/11/23 9:34:39 次浏览 分类:供方项目

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  项目介绍(简介、技术特点、应用范围、市场前景、效益分析及对投资者要求)


   (中文) 2-氨基-4-乙酰胺基苯甲醚(俗称还原物)是多种分散染料的重要中间体,传统的铁粉还原合成路线消耗大、成本高,污染严重,已被明令禁止。本项目以2,4-二硝基氯苯为原料,经醚化、催化氢化、选择性酰化3步制备2-氨基-4-乙酰胺基苯甲醚,全程收率≥80%,产品纯度≥99%,减少了反应步骤,克服了严重污染问题,降低了生产成本。


  (英文)2-Amino-4-Acetamino Anisole, commonly known as reducing substances, is the most important intermediate for disperse dyes. Its traditional preparation using ferrous powder as reductant is prohibited by state government due to heavy pollution. Our novel 3-step synthetic process from 2,4-dinitro-chlorobenzene gives a product of 99% purity with an overall yield of more than 80%. The application of catalytic hydrogenation and selective acetylation techniques greatly reduces the pollution and cost. 

 
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