发明公开
- 专利标题： An improved synthesis of diethynylbenzene
- 专利标题（中）： Verbesserte Synthese von Diethinylbenzol。
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申请号： EP91103225.8申请日： 1991-03-04
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公开(公告)号： EP0450318A1公开(公告)日： 1991-10-09
- 发明人: Carosino, lawrence Enrico , Herak, David Charles
- 申请人： HERCULES INCORPORATED
- 申请人地址： Hercules Plaza Wilmington Delaware 19894-0001 US
- 专利权人： HERCULES INCORPORATED
- 当前专利权人： HERCULES INCORPORATED
- 当前专利权人地址： Hercules Plaza Wilmington Delaware 19894-0001 US
- 代理机构： Lederer, Franz, Dr.
- 优先权： US498679 19900326
- 主分类号： C07C15/48
- IPC分类号： C07C15/48 ; C07C5/00
摘要：
A process for making diethynylbenzene by a "one-pot" reaction in which mixed isomers of divinylbenzene (DVB) and bromine are combined in a solvent consisting of sulfolane, at a rate that does not cause the temperature of the reaction to rise above 50°C., the intermediate brominated product is dehydrobrominated, and diethynylbenzene is separated from the dehydrobromination reaction mixture, is disclosed.
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