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1.
公开(公告)号:US20100160679A1
公开(公告)日:2010-06-24
申请号:US12634757
申请日:2009-12-10
申请人: Rajiv DHAWAN , Joachim C. RITTER
发明人: Rajiv DHAWAN , Joachim C. RITTER
IPC分类号: C07C51/42
CPC分类号: C07C63/28 , Y02P20/125
摘要: Processes are provided for preparing complexes of 2,3,5,6-tetraaminotoluene with an aromatic diacid where the aromatic diacid is insoluble in water under ambient conditions. An integrated process design starting with nitration of 2,6-dihalotoluene eliminates costly intermediate drying and recrystallization steps. Handling of solid materials with possible skin sensitizing properties and toxicity is avoided, thereby eliminating human and environmental exposure.
摘要翻译: 提供了制备2,3,5,6-四氨基甲苯与芳族二酸的络合物的方法,其中芳族二酸在环境条件下不溶于水。 从2,6-二卤代甲苯硝化开始的综合工艺设计消除了昂贵的中间干燥和重结晶步骤。 避免了具有可能的皮肤敏感性和毒性的固体材料的处理,从而消除了人体和环境的暴露。
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2.
公开(公告)号:US20100160675A1
公开(公告)日:2010-06-24
申请号:US12634825
申请日:2009-12-10
申请人: Rajiv DHAWAN , Joachim C. Ritter
发明人: Rajiv DHAWAN , Joachim C. Ritter
IPC分类号: C07C323/62 , C07C227/10
CPC分类号: C07C209/10 , C07C51/412 , C07C201/08 , C07C209/36 , C07C211/50 , Y02P20/125 , C07C65/05 , C07C211/52 , C07C205/12
摘要: An integrated process is provided for preparing complexes of 2,3,5,6-tetraminotoluene with an aromatic diacid starting with nitration of 2,6-dihalotoluene. The process design eliminates costly intermediate drying and recrystallization steps. Handling of solid materials with possible skin sensitizing properties and toxicity is avoided, thereby eliminating human and environmental exposure.
摘要翻译: 提供了一种综合方法,用于制备2,3,6,6-四甲基甲苯与芳族二酸的复合物,开始于2,6-二卤代甲苯的硝化。 该工艺设计消除了昂贵的中间干燥和重结晶步骤。 避免了具有可能的皮肤敏感性和毒性的固体材料的处理,从而消除了人体和环境的暴露。
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