文献类型：专利

英文题名：Preparation of 4,6-alkoxy-1,3-phenylene diamine by mixing 4,6-binitro-2-chlorine-1,3-dihydroxy benzene and mixture solution of hydroxide radical, water, rare metal and transition metal oxide catalyst, and adding de-chlorination accelerant

作者：LI D;WANG X;JIN Z;PENG X

机构：[1]UNIV EAST CHINA SCI & TECHNOLOGY

申请号：CN101066931-A

申请日：2007-05-08

公开日：2007-11-07

语种：英文

收录：DERWENT

摘要：NOVELTY - Preparation of 4,6-alkoxy-1,3-phenylene diamine involves mixing 4,6-binitro-2-chlorine-1,3-dihydroxy benzene into mixture solution of organic compound containing hydroxide radical, water, rare metal and transition metal oxide catalyst. De-chlorination accelerant is added to react with hydrogen for 0.5-3 hours to obtain 4,6-alkoxy-1,3-phenylene diamine hydrochloride. The catalyst comprises stable carrier in the mixture solution loaded on the carrier. The de-chlorination accelerant is mixture in ammonium acetate, ammonium formate and/or sodium formate. USE - Method for preparing 4,6-alkoxy-1,3-phenylene diamine. ADVANTAGE - The method provides high yield rate and quality 4,6-alkoxy-1,3-phenylene diamine hydrochloride in economical way, based on 4,6-binitro-2-chlorine-1,3-dihydroxy benzene. The mol yield rate of the 4,6-alkoxy-1,3-phenylene diamine hydrochloride is more than 80%. The method is of reduced cost.