公开(公告)号：US06271426B1

公开(公告)日：2001-08-07

申请号：US08981537

申请日：1998-04-15

申请人： Toshio Hozumi ,  Takayuki Tanonaka ,  Hitoshi Takahashi ,  Hidenori Moe ,  Masaaki Hiruta ,  Tadahito Kasami

发明人： Toshio Hozumi ,  Takayuki Tanonaka ,  Hitoshi Takahashi ,  Hidenori Moe ,  Masaaki Hiruta ,  Tadahito Kasami

IPC分类号： C07C2200

CPC分类号： B01J31/0218 ,  B01J31/022 ,  C07C17/12 ,  C07C25/02

摘要： This invention relates to an improved process for producing 2,6-dichloro-3,5-di(secondary or tertiary alkyl)toluene represented by the following formula (I). The process comprises chlorinating 3,5-di(secondary and tertiary alkyl)toluene represented by the following formula (II) by reacting with a chlorinating agent in the presence of a Lewis acid together with an aromatic sulfur compound represented by the formula (III) as a promoter: wherein R1 and R2 are independently a secondary alkyl or tertiary alkyl group, Ar1 and Ar2 are independently an unsubstituted or substituted aromatic ring, and n is 1 or 2.

摘要翻译： 本发明涉及一种生产由下式（I）表示的2,6-二氯-3,5-二（仲或叔烷基）甲苯的改进方法。 该方法包括在路易斯酸存在下与氯化剂一起与由式（III）表示的芳族硫化合物一起氯化由下式（II）表示的3,5-二（仲和叔烷基）甲苯， 作为助催化剂：其中R1和R2独立地为仲烷基或叔烷基，Ar1和Ar2独立地为未取代或取代的芳环，n为1或2。