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GB907059A - Production of pyridine bases - Google Patents

Production of pyridine bases

Info

Publication number
GB907059A
GB907059A GB1837660A GB1837660A GB907059A GB 907059 A GB907059 A GB 907059A GB 1837660 A GB1837660 A GB 1837660A GB 1837660 A GB1837660 A GB 1837660A GB 907059 A GB907059 A GB 907059A
Authority
GB
United Kingdom
Prior art keywords
mixture
alumina
contain
silica
thoria
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
GB1837660A
Inventor
Kenneth Raymond Hargrave
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.)
Distillers Co Yeast Ltd
Distillers Co Ltd
Original Assignee
Distillers Co Yeast Ltd
Distillers Co 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 Distillers Co Yeast Ltd, Distillers Co Ltd filed Critical Distillers Co Yeast Ltd
Priority to GB1837660A priority Critical patent/GB907059A/en
Publication of GB907059A publication Critical patent/GB907059A/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

Landscapes

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

Abstract

A condensation catalyst comprises silica, alumina, or a mixture of these. It may also contain as optional constituents titania, zirconia, ceria or thoria and zinc, codmium, tin, lead, tungsten, nickel, cobalt, chromium, molybdenum, iron, copper, palladium or silver either as the metal or a compound thereof.ALSO:Alkyl pyridines are obtained by heating a mixture of a 3-alkoxybutyraldehyde, propionaldehyde and ammonia, preferably in the presence of a condensation catalyst. The process is preferably carried out at a temperature of 300-500 DEG C. Suitable catalysts are, for example, silica, alumina or a mixture of these, and may also contain titania, zirconia, ceria or thoria. In addition the catalyst may contain zinc, cadmium, tin, lead, tungsten, nickel, cobalt, chromium, molybdenum, iron, copper, palladium or silver in metallic form or as a compound. In the example 3-methoxybutyraldehyde, propionaldehyde and ammonia are heated in the presence of a mixture of silica and alumina to give a mixture of 3,4-lutidine, 3,5-lutidine, and 2-ethyl pyridine and smaller amounts of pyridine and picolines.
GB1837660A 1960-05-25 1960-05-25 Production of pyridine bases Expired GB907059A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1837660A GB907059A (en) 1960-05-25 1960-05-25 Production of pyridine bases

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1837660A GB907059A (en) 1960-05-25 1960-05-25 Production of pyridine bases

Publications (1)

Publication Number Publication Date
GB907059A true GB907059A (en) 1962-10-03

Family

ID=10111407

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1837660A Expired GB907059A (en) 1960-05-25 1960-05-25 Production of pyridine bases

Country Status (1)

Country Link
GB (1) GB907059A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3417092A (en) * 1962-10-05 1968-12-17 Mitsubishi Gas Chemical Co Method for producing pyridine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3417092A (en) * 1962-10-05 1968-12-17 Mitsubishi Gas Chemical Co Method for producing pyridine

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