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公开(公告)号:US6054589A
公开(公告)日:2000-04-25
申请号:US118954
申请日:1998-07-17
IPC分类号: B01J27/06 , B01J27/14 , C07B61/00 , C07D491/04 , C07D491/056 , C07D235/02
CPC分类号: C07D491/04
摘要: A novel process for the preparation of 2-chloro-benzimidazole derivatives of the formula ##STR1## in which A represents optionally halogenated alkylene having 1 or 2 carbon atoms,which process comprises reaction 1,3-dihydro-benzimidazol(ethi)ones of the formula ##STR2## in which X represents oxygen or sulphur,with phosphorus oxychloride.Novel 1,3-dihydro-benzimidazol(ethi)ones of the formula(II) and process for their preparation.
摘要翻译: 一种用于制备下式的2-氯 - 苯并咪唑衍生物的新方法,其中A表示任选地具有1或2个碳原子的卤代亚烷基,该方法包括下式的反应1,3-二氢 - 苯并咪唑(ethi),其中 X表示氧或硫,与磷酰氯反应。 新的式(II)的1,3-二氢 - 苯并咪唑(ethi)及其制备方法。