GB850405A - Improvements in the production of alkylpyridines and alkylquinolines - Google Patents

Improvements in the production of alkylpyridines and alkylquinolines

Info

Publication number
GB850405A
GB850405A GB77958A GB77958A GB850405A GB 850405 A GB850405 A GB 850405A GB 77958 A GB77958 A GB 77958A GB 77958 A GB77958 A GB 77958A GB 850405 A GB850405 A GB 850405A
Authority
GB
United Kingdom
Prior art keywords
pyridine
methyl
alumina
ethyl
alkyl
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
GB77958A
Inventor
Geoffrey Arnold Collins
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.)
Midland Tar Distillers Ltd
Original Assignee
Midland Tar Distillers 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 Midland Tar Distillers Ltd filed Critical Midland Tar Distillers Ltd
Priority to GB77958A priority Critical patent/GB850405A/en
Publication of GB850405A publication Critical patent/GB850405A/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
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D215/00—Heterocyclic compounds containing quinoline or hydrogenated quinoline ring systems
    • C07D215/02—Heterocyclic compounds containing quinoline or hydrogenated quinoline ring systems having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen atoms or carbon atoms directly attached to the ring nitrogen atom
    • C07D215/04—Heterocyclic compounds containing quinoline or hydrogenated quinoline ring systems having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen atoms or carbon atoms directly attached to the ring nitrogen atom with only hydrogen atoms or radicals containing only hydrogen and carbon atoms, directly attached to the ring carbon atoms

Landscapes

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

Abstract

Alkylpyridines having a methyl or ethyl group in the 2-, 4- or 6-position and alkyl quinolines having a methyl or ethyl group in the 2-or-4-position in the heterocyclic ring are methylated on the a - carbon atom of the alkyl group by reaction with methanol or methyl chloride in the vapour phase at 350 DEG -500 DEG C. in the presence of an acidic cracking catalyst containing alumina. From any given starting compound a mixture of alkylated products is usually found. For example, in the methylation of methyl pyridine the corresponding ethyl pyridine is formed and this may then be further methylated to the corresponding iso-propyl pyridine and possibly tert-butyl pyridine. The preferred catalyst is alumina but silica-alumina or activated earths such as fullers' earth may be used. The starting materials may have alkyl substituents present in positions other than those specified above. but these groups are unaffected by the reaction. The ethyl and isopropyl pyridines and quinolines produced by the process may be converted to the corresponding vinyl derivatives by dehydrogenation in known manner, for example by passage over a catalyst containing chromium oxide at 425 DEG -650 DEG C.
GB77958A 1958-01-08 1958-01-08 Improvements in the production of alkylpyridines and alkylquinolines Expired GB850405A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB77958A GB850405A (en) 1958-01-08 1958-01-08 Improvements in the production of alkylpyridines and alkylquinolines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB77958A GB850405A (en) 1958-01-08 1958-01-08 Improvements in the production of alkylpyridines and alkylquinolines

Publications (1)

Publication Number Publication Date
GB850405A true GB850405A (en) 1960-10-05

Family

ID=9710369

Family Applications (1)

Application Number Title Priority Date Filing Date
GB77958A Expired GB850405A (en) 1958-01-08 1958-01-08 Improvements in the production of alkylpyridines and alkylquinolines

Country Status (1)

Country Link
GB (1) GB850405A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3957792A (en) * 1973-06-08 1976-05-18 Hoechst Aktiengesellschaft Process for preparing 2-ethyl-pyridine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3957792A (en) * 1973-06-08 1976-05-18 Hoechst Aktiengesellschaft Process for preparing 2-ethyl-pyridine

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