GB1049330A - Benzamidines and the preparation of 2-aryl benzimidazoles - Google Patents

Benzamidines and the preparation of 2-aryl benzimidazoles

Info

Publication number
GB1049330A
GB1049330A GB2998063A GB2998063A GB1049330A GB 1049330 A GB1049330 A GB 1049330A GB 2998063 A GB2998063 A GB 2998063A GB 2998063 A GB2998063 A GB 2998063A GB 1049330 A GB1049330 A GB 1049330A
Authority
GB
United Kingdom
Prior art keywords
compounds
preparation
treating
aryl
benzamidines
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB2998063A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Merck and Co Inc
Original Assignee
Merck and Co Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Merck and Co Inc filed Critical Merck and Co Inc
Publication of GB1049330A publication Critical patent/GB1049330A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D235/00—Heterocyclic compounds containing 1,3-diazole or hydrogenated 1,3-diazole rings, condensed with other rings
    • C07D235/02—Heterocyclic compounds containing 1,3-diazole or hydrogenated 1,3-diazole rings, condensed with other rings condensed with carbocyclic rings or ring systems
    • C07D235/04—Benzimidazoles; Hydrogenated benzimidazoles
    • C07D235/18—Benzimidazoles; Hydrogenated benzimidazoles with aryl radicals directly attached in position 2

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Plural Heterocyclic Compounds (AREA)

Abstract

The invention comprises (I) compounds of general formula <FORM:1049330/C2/1> wherein Ar is aryl, X is chloric or bromine, and R1 and R2 are hydrogen, lower (i.e. C1- 5) alkyl or lower alkoxy; (II) the preparation of compounds A by treating a compound of formula <FORM:1049330/C2/2> with a halogenating agent; (III) the preparation of compounds of general formula <FORM:1049330/C2/3> either by treating compounds A with a base or by treating compounds B with an oxidizing agent. N - phenyl arylamidines B are prepared from anilines and aryl nitriles with aluminium chloride. Veterinary compositions (e.g. as a drench, bolus or animal food) containing compounds C are mentioned for use against helminthiasis.
GB2998063A 1962-08-13 1963-07-29 Benzamidines and the preparation of 2-aryl benzimidazoles Expired GB1049330A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US21630862A 1962-08-13 1962-08-13

Publications (1)

Publication Number Publication Date
GB1049330A true GB1049330A (en) 1966-11-23

Family

ID=22806556

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2998063A Expired GB1049330A (en) 1962-08-13 1963-07-29 Benzamidines and the preparation of 2-aryl benzimidazoles

Country Status (1)

Country Link
GB (1) GB1049330A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7531542B2 (en) 2005-05-18 2009-05-12 Wyeth Benzooxazole and benzothiazole antagonists of gonadotropin releasing hormone receptor
US7534796B2 (en) 2005-02-18 2009-05-19 Wyeth Imidazo[4,5-b]pyridine antagonists of gonadotropin releasing hormone receptor
US7538113B2 (en) 2005-02-18 2009-05-26 Wyeth 4-substituted imidazo[4,5-c]pyridine antagonists of gonadotropin releasing hormone receptor
US7582636B2 (en) 2005-05-26 2009-09-01 Wyeth Piperazinylimidazopyridine and piperazinyltriazolopyridine antagonists of Gonadotropin Releasing Hormone receptor
US7582634B2 (en) 2005-02-18 2009-09-01 Wyeth 7-substituted imidazo[4,5-c]pyridine antagonists of gonadotropin releasing hormone receptor
US7696210B2 (en) 2004-06-17 2010-04-13 Wyeth Gonadotropin releasing hormone receptor antagonists
US7714130B2 (en) 2004-06-17 2010-05-11 Wyeth Processes for preparing gonadotropin releasing hormone receptor antagonists

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7696210B2 (en) 2004-06-17 2010-04-13 Wyeth Gonadotropin releasing hormone receptor antagonists
US7714130B2 (en) 2004-06-17 2010-05-11 Wyeth Processes for preparing gonadotropin releasing hormone receptor antagonists
US7534796B2 (en) 2005-02-18 2009-05-19 Wyeth Imidazo[4,5-b]pyridine antagonists of gonadotropin releasing hormone receptor
US7538113B2 (en) 2005-02-18 2009-05-26 Wyeth 4-substituted imidazo[4,5-c]pyridine antagonists of gonadotropin releasing hormone receptor
US7582634B2 (en) 2005-02-18 2009-09-01 Wyeth 7-substituted imidazo[4,5-c]pyridine antagonists of gonadotropin releasing hormone receptor
US7531542B2 (en) 2005-05-18 2009-05-12 Wyeth Benzooxazole and benzothiazole antagonists of gonadotropin releasing hormone receptor
US7582636B2 (en) 2005-05-26 2009-09-01 Wyeth Piperazinylimidazopyridine and piperazinyltriazolopyridine antagonists of Gonadotropin Releasing Hormone receptor

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