GB829838A - Improved process for the manufacture of 2:2-dipyridyl - Google Patents

Improved process for the manufacture of 2:2-dipyridyl

Info

Publication number
GB829838A
GB829838A GB2886757A GB2886757A GB829838A GB 829838 A GB829838 A GB 829838A GB 2886757 A GB2886757 A GB 2886757A GB 2886757 A GB2886757 A GB 2886757A GB 829838 A GB829838 A GB 829838A
Authority
GB
United Kingdom
Prior art keywords
dipyridyl
treating
followed
manufacture
improved process
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
GB2886757A
Inventor
Cyril Gardner
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.)
Imperial Chemical Industries Ltd
Original Assignee
Imperial Chemical Industries Ltd
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 Imperial Chemical Industries Ltd filed Critical Imperial Chemical Industries Ltd
Priority to GB2886757A priority Critical patent/GB829838A/en
Publication of GB829838A publication Critical patent/GB829838A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D213/00—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members
    • C07D213/02—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members
    • C07D213/04—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom
    • C07D213/06—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom containing only hydrogen and carbon atoms in addition to the ring nitrogen atom
    • C07D213/22—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom containing only hydrogen and carbon atoms in addition to the ring nitrogen atom containing two or more pyridine rings directly linked together, e.g. bipyridyl

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Pyridine Compounds (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)

Abstract

2.21-Dipyridyl is manufactured by a process comprising reacting 2-bromo-, 2-chloro- or 2-iodopyridine with finely divided iron, cobalt or nickel. Preferably, the Raney form of the metal is used and the process is carried out at a temperature in the range 100-400 DEG C. and at elevated pressure. The 2.21-dipyridyl may be separated from the reaction mixture by treating it with excess alkali followed by steam distillation; the product is isolated from the aqueous distillate by neutralizing with mineral acid, evaporating and treating with caustic alkali and extracting the resulting mixture with ether, followed by distillation of the ethereal solution.
GB2886757A 1957-09-13 1957-09-13 Improved process for the manufacture of 2:2-dipyridyl Expired GB829838A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2886757A GB829838A (en) 1957-09-13 1957-09-13 Improved process for the manufacture of 2:2-dipyridyl

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2886757A GB829838A (en) 1957-09-13 1957-09-13 Improved process for the manufacture of 2:2-dipyridyl

Publications (1)

Publication Number Publication Date
GB829838A true GB829838A (en) 1960-03-09

Family

ID=10282436

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2886757A Expired GB829838A (en) 1957-09-13 1957-09-13 Improved process for the manufacture of 2:2-dipyridyl

Country Status (1)

Country Link
GB (1) GB829838A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115245841A (en) * 2022-08-22 2022-10-28 山东明化新材料有限公司 Application of nickel-cobalt metal framework catalyst in preparation of 2,2' -bipyridyl

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115245841A (en) * 2022-08-22 2022-10-28 山东明化新材料有限公司 Application of nickel-cobalt metal framework catalyst in preparation of 2,2' -bipyridyl
CN115245841B (en) * 2022-08-22 2024-01-26 山东明化新材料有限公司 Application of nickel-cobalt metal framework catalyst in preparation of 2,2' -bipyridine

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