GB1233643A - - Google Patents

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Publication number
GB1233643A
GB1233643A GB1233643DA GB1233643A GB 1233643 A GB1233643 A GB 1233643A GB 1233643D A GB1233643D A GB 1233643DA GB 1233643 A GB1233643 A GB 1233643A
Authority
GB
United Kingdom
Prior art keywords
pyridine
carried out
cupric
pyran
heading
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
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 filed Critical
Publication of GB1233643A publication Critical patent/GB1233643A/en
Expired legal-status Critical Current

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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
    • C07D213/14—Preparation from compounds containing heterocyclic oxygen

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Pyridine Compounds (AREA)

Abstract

1,233,643. Pyridine. IMPERIAL CHEMICAL INDUSTRIES Ltd. 13 April, 1970 [2 May, 1969], No. 22514/69. Heading C2C. Pyridine is produced by reacting 3,4-dihydro- 2H-pyran with ammonium ions or ammonia, in the liquid phase in the presence of molecular oxygen. The reaction may be carried out in the presence of water and/or an organic solvent. The preferred solvent is an aqueous solution of an alkanoic acid having up to 6 atoms in the alkyl group, e.g. acetic or propionic acid. Preferably the process is carried out in the presence of cupric or ferric ions.
GB1233643D 1969-05-02 1969-05-02 Expired GB1233643A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2251469 1969-05-02

Publications (1)

Publication Number Publication Date
GB1233643A true GB1233643A (en) 1971-05-26

Family

ID=10180610

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1233643D Expired GB1233643A (en) 1969-05-02 1969-05-02

Country Status (1)

Country Link
GB (1) GB1233643A (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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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees