公开(公告)号：EP0254305B1

公开(公告)日：1990-12-05

申请号：EP87110642.3

申请日：1987-07-22

Applicant: YEDA RESEARCH AND DEVELOPMENT COMPANY, LTD.

Inventor： Daren, Stephen L. J. ,  Vofsi, David ,  Finkels, Aurelia

IPC: C07C17/34 ,  C07C25/28

CPC classification number: C07C17/25 ,  C07C25/28

公开(公告)号：EP0254305A1

公开(公告)日：1988-01-27

申请号：EP87110642.3

申请日：1987-07-22

Applicant: YEDA RESEARCH AND DEVELOPMENT COMPANY, LTD.

Inventor： Daren, Stephen L. J. ,  Vofsi, David ,  Finkels, Aurelia

IPC: C07C17/34 ,  C07C25/28

CPC classification number: C07C17/25 ,  C07C25/28

Abstract: The invention relates to an improved process for the production of crystalline tribromostyrene. The process involves removal of hydrogen bromide in a two phase system with the aid of phase transfer catalysts. One of the phases used is an aqueous one containg an alkali metal hydroxide whereas the second comprises bromoethyltri­bromobenzene in an alcohol as solvent.

Abstract translation: 本发明涉及一种生产结晶三溴苯乙烯的改进方法。 该方法涉及在相转移催化剂的帮助下在两相体系中除去溴化氢。 使用的一个相是含有碱金属氢氧化物的水溶液，而第二个包括在乙醇中作为溶剂的溴乙基二溴苯。