公开(公告)号：US4029560A

公开(公告)日：1977-06-14

申请号：US671698

申请日：1976-03-29

申请人： Shigeo Yoshinaka ,  Masaharu Doya ,  Seiiji Uchiyama ,  Sadao Nozaki

发明人： Shigeo Yoshinaka ,  Masaharu Doya ,  Seiiji Uchiyama ,  Sadao Nozaki

IPC分类号： C07C17/00 ,  C07C17/14 ,  C07C22/04 ,  C07C51/00 ,  C07C51/60 ,  C07C63/15 ,  C07C63/30 ,  C07C67/00 ,  C08G69/32 ,  B01J1/10

CPC分类号： C08G69/32 ,  C07C17/14 ,  C07C51/60 ,  Y10S204/914

摘要： This invention concerns to a process for .alpha.,.alpha.,.alpha.,.alpha.',.alpha.',.alpha.'-hexachloroxylene by reacting m-xylene or p-xylene or a partially chlorinated product thereof with chlorine under the irradiation of ultraviolet rays, the process comprising (1) a first-step chlorination reaction which is carried out in the presence of .alpha.,.alpha.,.alpha.,.alpha.',.alpha.',.alpha.'-hexachloroxylene as a solvent added at the initial stage of the reaction, and continued until a compound convertible to .alpha.,.alpha.,.alpha.,.alpha.',.alpha.',.alpha.'-hexachloroxylene by chlorination becomes substantially absent in the reaction mixture, and (2) a second-step chlorination reaction which is continued from the first-step chlorination and carried out to convert difficulty-separable by-products present in the reaction mixture to easily-separable compounds. This invention also concerns to a process for producing an aromatic dicarboxylic acid chloride which comprise reacting the resulting .alpha.,.alpha.,.alpha.,.alpha.',.alpha.',.alpha.'-hexachloroxylene with isophthalic acid or terephthalic acid.

摘要翻译： 本发明涉及一种通过在紫外线照射下使间二甲苯或对二甲苯或其部分氯化产物与氯反应的α，α，α，α'，α'，α'-六氯二氧化碳的方法，该方法包括 （1）第一步氯化反应，其在α，α，α，α'，α'，α'-六氯二苯作为反应初始阶段加入的溶剂存在下进行，并持续进行到化合物 在反应混合物中通过氯化可转化成α，α，α，α'，α'，α'-六氯二苯基本上不存在，和（2）第二步氯化反应，继续从第一步氯化并进行 将反应混合物中存在的难以分离的副产物转化成容易分离的化合物。 本发明还涉及一种制备芳族二羧酰氯的方法，其包括使所得的α，α，α，α'，α'，α'-六氯代二甲苯与间苯二甲酸或对苯二甲酸反应。