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专利名称：Process for preparing 1, 4-dichloro-2, 5-dimethoxybenzene
发明人：ALVAREZ JOSE R.
interview是什么意思申请号：US47614465
申请日：19650730
公开号：US3363005A
物外之趣>残疾运动员公开日：
神秘的海洋世界
19680109
专利内容由知识产权出版社提供
摘要：1,4 - Dichloro - 2,5 - dimethoxy - benzene is prepared by reacting at 20-100 DEG C. elemental chlorine with p-dimethoxy benzene dissolved in a halogenated hydrocarbon solvent which has a b.p. of 40-140 DEG C. and contains 0.02-0.10 moles of anhydrous AlCl3 per mole of p-methoxy benzene and 0.5-2.5 moles of a C1- 4 alcohol per mole of AlCl3. Specified solvents are methylene dichloride, chloroform, carbon tetrachloride, tetrachloroethylene and 1,2 - difluoro - 1,1,2,2-tetrachloroethane and liquid or gaous chlorine may be ud.
申请人：E. I. DU PONT DE NEMOURS AND COMPANY纺
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