发明授权
- 专利标题： Process for preparing 3-chloromethylbenzo-cyclobutene
- 专利标题（中）： 3-氯甲基苯并环丁烯的制备方法
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申请号： US655872申请日： 1991-02-14
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公开(公告)号： US5099083A公开(公告)日： 1992-03-24
- 发明人: P. J. Thomas , R. Garth Pews
- 申请人： P. J. Thomas , R. Garth Pews
- 申请人地址： MI Midland
- 专利权人： The Dow Chemical Company
- 当前专利权人： The Dow Chemical Company
- 当前专利权人地址： MI Midland
- 主分类号： C07C17/32
- IPC分类号： C07C17/32
摘要：
3-chloromethylbenzocyclobutene is prepared by reacting benzocyclobutene with chloromethyl methyl ether in the presence of stannic chloride at a temperature of about -120.degree. C. to about -40.degree. C. and neutralizing the resulting reaction mixture comprising 3-chloromethylbenzocyclobutene at a temperature of about -80.degree. C. to about -70.degree. C.
公开/授权文献
- US5707425A Helium recovery from higher helium content streams 公开/授权日：1998-01-13
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