GB1110865A - Manufacture of pyridines - Google Patents

Manufacture of pyridines

Info

Publication number
GB1110865A
GB1110865A GB1975566A GB1975566A GB1110865A GB 1110865 A GB1110865 A GB 1110865A GB 1975566 A GB1975566 A GB 1975566A GB 1975566 A GB1975566 A GB 1975566A GB 1110865 A GB1110865 A GB 1110865A
Authority
GB
United Kingdom
Prior art keywords
glutaraldehyde
ions
substituted
cupric
salt
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
GB1975566A
Inventor
John Edward Colchester
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 GB1975566A priority Critical patent/GB1110865A/en
Publication of GB1110865A publication Critical patent/GB1110865A/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
    • C07D213/08—Preparation by ring-closure
    • 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
    • C07D213/14—Preparation from compounds containing heterocyclic oxygen

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

Pyridine or substituted pyridines are made by interacting glutaraldehyde, a substituted glutaraldehyde or a precursor thereof in the liquid phase with ammonium ions or ammonia in the presence of molecular oxygen and cupric ions, the partial pressure of oxygen being at least 15 lb/square inch. Suitable precursors are, for example, the cyclic enol-acetals of glutaraldehyde and substituted glutaraldehyde e.g. 2 - alkoxy - 3,4 - dihydro - 2H - pyrans, particularly those in which the alkyl group contains up to 6 carbon atoms. The ammonium ions may be introduced in the form of an ammonium salt. The reaction mixture may comprise water and/or an organic solvent, in particular an alkanoic acid. The cupric ions are preferably introduced in the form of a cupric salt but may be produced in situ by the oxidation of a cuprous salt.
GB1975566A 1966-05-04 1966-05-04 Manufacture of pyridines Expired GB1110865A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1975566A GB1110865A (en) 1966-05-04 1966-05-04 Manufacture of pyridines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1975566A GB1110865A (en) 1966-05-04 1966-05-04 Manufacture of pyridines

Publications (1)

Publication Number Publication Date
GB1110865A true GB1110865A (en) 1968-04-24

Family

ID=10134676

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1975566A Expired GB1110865A (en) 1966-05-04 1966-05-04 Manufacture of pyridines

Country Status (1)

Country Link
GB (1) GB1110865A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0057366A1 (en) * 1981-01-30 1982-08-11 BASF Aktiengesellschaft Process for the preparation of pyridines

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0057366A1 (en) * 1981-01-30 1982-08-11 BASF Aktiengesellschaft Process for the preparation of pyridines

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