Інститут Фізико-Органічної Хімії Та Вуглехімії Ім. Л.М. Литвиненка Аh Урср
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Priority to UA94042887ApriorityCriticalpatent/UA10695A/en
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Pharmaceuticals Containing Other Organic And Inorganic Compounds
(AREA)
Abstract
The invention relates to the field of organic chemistry and synthesis of drugs. A process for preparation of 2-chlorine-5-benzoylbenzimidazole comprises boiling of 5-benzoylbenzimidazole-containing compound with phosphorous-oxychloride and isolation of desired product. 5-benzoylbenzimidazolone-2 is boiled during 7 hours with simultaneous transmission of hydrogen chloride flowing through the mixture.
UA94042887A1994-04-051994-04-05A process for preparation of 2-chlorine-5-benzoylbenzimidazole
UA10695A
(en)