发明授权
- 专利标题: Process for the preparation of 3-phenoxybenzenes
- 专利标题(中): 3-苯氧基苯的制备方法
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申请号: US106102申请日: 1979-12-21
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公开(公告)号: US4304938A公开(公告)日: 1981-12-08
- 发明人: Endre Palosi , Gergely Heja , Dezso Korbonits , Pal Kiss , Csaba Gonczi , Judit Cser nee Kun , Ida Szvoboda nee Kauzel , Gabor Kovacs , Gabor Szabo , Tamas Kallay , Laszlo Ledniczky
- 申请人: Endre Palosi , Gergely Heja , Dezso Korbonits , Pal Kiss , Csaba Gonczi , Judit Cser nee Kun , Ida Szvoboda nee Kauzel , Gabor Kovacs , Gabor Szabo , Tamas Kallay , Laszlo Ledniczky
- 申请人地址: HUX Budapest
- 专利权人: Chinoin Gyogyszer es Vegyeszeti Termekek Gyara RT
- 当前专利权人: Chinoin Gyogyszer es Vegyeszeti Termekek Gyara RT
- 当前专利权人地址: HUX Budapest
- 优先权: HUXCI1886 19781222
- 主分类号: C07C43/295
- IPC分类号: C07C43/295 ; B01J23/00 ; B01J27/00 ; B01J31/00 ; C07B61/00 ; C07C29/14 ; C07C41/00 ; C07C41/26 ; C07C43/23 ; C07C43/263 ; C07C45/00 ; C07C47/575 ; C07C67/00 ; C07C239/00 ; C07C251/48 ; C07C253/00 ; C07C255/37 ; C07C255/53 ; C07C301/00 ; C07C303/32 ; C07C309/24 ; C07D317/14 ; C07D317/16 ; C07D317/22 ; C07C131/00
摘要:
3-Phenoxybenzene derivatives are prepared by a method which comprises the steps of(a) chlorinating benzaldehyde with chlorine gas in the presence of a hydrocarbon and a Lewis acid catalyst to obtain 3-chlorobenzaldehyde; (b) reacting the 3-chlorobenzaldehyde with ethylene glycol to obtain 2-(3-chlorophenyl)-1,3-dioxolane; (c) etherifying said dioxolane with an alkali phenolate to yield the intermediate 2-(3-phenoxyphenyl)-1,3-dioxolane and converting this intermediate to the corresponding aldehyde, cyanohydrin, sulfonic acid salt or oxime derivative.
公开/授权文献
- USD424310S Combined hanger and hook 公开/授权日:2000-05-09
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