CAS: 1124-05-6; 2,5-Dichloro-P-Xylene

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CAS号95-72-7 2-氯-1,4-二甲基苯 | CAS号106-42-3 对二甲苯 | CAS号20782-94-9 4-氯-2,5-二甲基苯胺 | CAS号7553-56-2 碘 | CAS号7782-50-5 氯气 | CAS号75-52-5 硝基甲烷 | CAS号19036-27-2 1,4-双(溴甲基)-2,5-二氯苯 | CAS号2142-29-2 p-Xylene, .alph... | CAS号20260-22-4 1,4-二甲基-2,5-二苯基苯 | CAS号95-72-7 2-氯-1,4-二甲基苯 | CAS号1897-43-4 2,5-二氯对苯二腈 | CAS号1079-17-0 α,α',2,3,5,6-六氯对二甲苯 | CAS号13799-90-1 2,5-二氯对苯二甲酸 | CAS号3463-43-2 1,4-二氯-2,5-二甲基-3-硝基苯 | CAS号20782-94-9 4-氯-2,5-二甲基苯胺

对二甲苯置于iron(III) Chloride,二苯硫醚体系中,化学反应 8.0H,以53.4%的收率获得2,5-二氯对二甲苯
参考文献:高純度2,5−ジクロロ−p−キシレンの製造方法
标题:高純度2,5−ジクロロ−p−キシレンの製造方法
摘要:提供一种能够以优异的收率获得纯度为99.9%以上的高纯度2,5-二氯-对-二甲苯的制造方法.解决方案是,在铁二氯化物和/或三氯化锑的催化剂和二芳基硫醇的助催化剂的存在下,在氯化度为2.0〜2.8的氯化条件下,使对-二甲苯和氯反应,通过蒸馏处理或蒸馏处理和再结晶处理的组合,从反应生成物中分离出2,5-二氯-对-二甲苯,特征在于获得纯度为99.9%以上的2,5-二氯-对-二甲苯,从而制造高纯度2,5-二氯-对-二甲苯.[图未给出]

专利信息

专利号:US-2010056750-A1
优先权日:2006-12-21
标题:Process for the synthesis of halogenated aromatic diacids
发明人：RITTER JOACHIM C
权利人:RITTER JOACHIM C
摘要:The production of high-purity halogenated aromatic diacids from halogenated dimethylbenzene by oxidation with an oxygen-containing gas is conducted using a four-component catalyst system and a two-stage temperature process.

专利号:US-7585999-B2
优先权日:2006-11-28
标题:Process for the synthesis of 2, 5-dihydroxyterephthalic acid
发明人：RITTER JOACHIM C
权利人:DU PONT
摘要:2,5-dihydroxyterephthalic acid is produced in high yields and high purity from 2,5-dihaloterephthalic acid by contact with a copper source and a ligand that coordinates to copper under basic conditions.

专利号:US-7339076-B1
优先权日:2006-11-28
标题 :Process for the synthesis of 2,5-dihydroxyterephthalic acid

专利号:US-7345194-B1
优先权日:2006-11-28
标题:Process for the synthesis of 2,5-dihydroxyterephthalic acid

专利号:US-2008132668-A1
优先权日:2006-11-28
标 题 :Process for the synthesis of 2, 5-dihydroxyterephthalic acid

专利号:WO-2008082501-A1
优先权日:2006-12-21
标题:Process for the synthesis of halogenated aromatic diacids