公开(公告)号：US6117278A

公开(公告)日：2000-09-12

申请号：US208676

申请日：1998-12-10

申请人： Sanjay Mandal ,  Kevin R. Benson ,  Michael J. Fifolt ,  John Hickey ,  James Franc ,  George Piotrowski ,  William S. Derwin

发明人： Sanjay Mandal ,  Kevin R. Benson ,  Michael J. Fifolt ,  John Hickey ,  James Franc ,  George Piotrowski ,  William S. Derwin

IPC分类号： C07C17/14 ,  C07C17/20 ,  C07C22/04 ,  C07C22/08 ,  C07C17/00 ,  C07C22/00 ,  C07C25/00

CPC分类号： C07C22/08 ,  C07C17/14 ,  C07C17/206 ,  C07C22/04

摘要： Disclosed is a method for making high purity .alpha.-chloroxylenes. A composition is formed of about 15 to about 80 wt % of a xylene and about 20 to about 85 wt % of a solvent. The solvent can be toluene, ring halogenated toluene, benzotrichloride, ring halogenated benzotrichloride, benzotrifluoride, ring halogenated benzotrifluoride, .alpha.,.alpha.,.alpha.,.alpha.',.alpha.',.alpha.'-hexafluorometaxylene, .alpha.,.alpha.,.alpha.,.alpha.',.alpha.',.alpha.'-hexafluoroparaxylene, or a mixture thereof. The composition is heated to about 70 to about 160.degree. C. No base is present in the composition. Chlorine gas is sparged through the composition and chlorine free radicals are generated therein. The chlorine free radicals can be generated either with UV light or by means of a chlorine free radical initiator.

摘要翻译： 公开了制备高纯度α-氯代甲苯的方法。 组合物由约15至约80重量％的二甲苯和约20至约85重量％的溶剂形成。 溶剂可以是甲苯，环卤代甲苯，三氯化苯，卤代三氯甲烷，三氟甲苯，环卤化三氟甲苯，α，α，α，α'，α'，α'-六氟亚甲基，α，α，α， ，α'-六氟对二甲苯或其混合物。 将组合物加热至约70至约160℃。组合物中不存在碱。 通过组合物喷射氯气，并在其中产生氯自由基。 氯自由基可以用UV光或通过无氯自由基引发剂产生。

公开(公告)号：US5840998A

公开(公告)日：1998-11-24

申请号：US46525

申请日：1998-03-24

申请人： Sanjay Mandal ,  Kevin R. Benson ,  George Piotrowski

发明人： Sanjay Mandal ,  Kevin R. Benson ,  George Piotrowski

IPC分类号： C07C41/22 ,  C07C43/225

CPC分类号： C07C41/22

摘要： Disclosed is a method of chlorinating a side chain of a aromatic or heterocyclic ether. The aromatic or heterocyclic ether is mixed with a fluorine-containing aliphatic solvent. The aromatic or heterocyclic ether is contacted with chlorine radical at an elevated temperature which results in its chlorination. The chlorinated product is preferably insoluble in the solvent and separates, forming two phases. The solvent phase can be recycled and reused.

摘要翻译： 公开了将芳族或杂环醚的侧链氯化的方法。 芳族或杂环醚与含氟脂肪族溶剂混合。 芳族或杂环醚在升高的温度下与氯自由基接触，导致其氯化。 氯化产物优选不溶于溶剂并分离，形成两相。 溶剂相可以循环再利用。

公开(公告)号：US5981789A

公开(公告)日：1999-11-09

申请号：US223709

申请日：1998-12-30

申请人： John Hickey ,  Robert L. Bell ,  George Piotrowski

发明人： John Hickey ,  Robert L. Bell ,  George Piotrowski

IPC分类号： C07B39/00 ,  C07C17/093 ,  C07C41/22 ,  C07C51/62 ,  C07C253/30 ,  C07C263/16 ,  C07C255/00 ,  C07C41/00 ,  C07C51/58 ,  C07C263/00

CPC分类号： C07C41/22 ,  C07B39/00 ,  C07C17/093 ,  C07C253/30 ,  C07C263/16 ,  C07C51/363 ,  C07C51/62 ,  Y02P20/582

摘要： Disclosed is a method of preparing an aromatic compound having the general formula ##STR1## where R is CF.sub.3, OCF.sub.3, OC.sub.2 F.sub.5, CN, NCO, or COCl, m is 0, 1, or 2, n is 0, 1, or 2, q is 1 or 2, and q+m+n is an integer from 1 to 5. A vapor is prepared of a substrate having the general formula ##STR2## and a chlorinating agent. The mixture is reacted at a temperature above the boiling point of the substrate but below its decomposition temperature. The amount of chlorinating agent is about 0.5 to about 2 times the amount stoichiometrically required to replace the nitro groups on the substrate with chlorine. Unreacted substrate and partially reacted substrate are condensed from the product mixture and are recycled. The substrate is preferably in contact with the chlorinating agent before it is vaporized.

摘要翻译： 公开了一种制备具有以下通式的芳族化合物的方法：其中R为CF 3，OCF 3，OC 2 F 5，CN，NCO或COCl，m为0,1或2，n为0,1或2，q为1 或2，q + m + n是1至5的整数。制备具有通式的基底和氯化剂的蒸气。 混合物在高于基体沸点但低于其分解温度的温度下反应。 氯化剂的量为用氯替代底物上的硝基所需的化学计量量的约0.5至约2倍。 未反应的底物和部分反应的底物从产物混合物中冷凝并再循环。 基材在蒸发之前优选与氯化剂接触。