ES359989A1 - Procedure for the obtaining of halogenated 2-furil-bencimidazoles in the furilo rest. (Machine-translation by Google Translate, not legally binding)
- Google Patents
Procedure for the obtaining of halogenated 2-furil-bencimidazoles in the furilo rest. (Machine-translation by Google Translate, not legally binding)
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Bayer AG
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Bayer AG
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Priority claimed from DE19671670946external-prioritypatent/DE1670946C3/en
Application filed by Bayer AGfiledCriticalBayer AG
Publication of ES359989A1publicationCriticalpatent/ES359989A1/en
Low-Molecular Organic Synthesis Reactions Using Catalysts
(AREA)
Plural Heterocyclic Compounds
(AREA)
Nitrogen And Oxygen Or Sulfur-Condensed Heterocyclic Ring Systems
(AREA)
Abstract
Procedure for obtaining 2-furylbenzimidazoles halogenated in the furyl moiety, of formula **(See formula)** where Hal signifies chlorine or bromine, R signifies halogen, R'signifies halogen or alkyl, n signifies 1, 2 or 3, m signifies 0, 1 or 2, the sum of n and m being no more than 3 and p signifying 0, 1, 2, 3 or 4, characterized in that the 2-furyl-benzimidazoles of the formula **(See formula)** Where R, R', m and p have the meanings indicated above, they are treated in the presence of acids, and optionally in the presence of solvents, at temperatures between 100 and 180ºC with chlorine or bromine. (Machine-translation by Google Translate, not legally binding)
ES359989A1967-11-081968-11-08Procedure for the obtaining of halogenated 2-furil-bencimidazoles in the furilo rest. (Machine-translation by Google Translate, not legally binding)
ExpiredES359989A1
(en)
Procedure for the obtaining of heterocyclic esters of the acid tionotiolfosfºr- (con) -ico (Machine-translation by Google Translate, not legally binding)
Procedure for the preparation of new 1,2) diaril-3,5-dioxopirazolidinas replaced in position 4 (Machine-translation by Google Translate, not legally binding)