GB920526A - Production of pyridine bases - Google Patents

Production of pyridine bases

Info

Publication number
GB920526A
GB920526A GB39455/60A GB3945560A GB920526A GB 920526 A GB920526 A GB 920526A GB 39455/60 A GB39455/60 A GB 39455/60A GB 3945560 A GB3945560 A GB 3945560A GB 920526 A GB920526 A GB 920526A
Authority
GB
United Kingdom
Prior art keywords
pyridine
ketone
alumina
silica
methyl
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
GB39455/60A
Inventor
Kenneth Raymond Hargreave
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 GB39455/60A priority Critical patent/GB920526A/en
Publication of GB920526A publication Critical patent/GB920526A/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
    • C07D471/00—Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, at least one ring being a six-membered ring with one nitrogen atom, not provided for by groups C07D451/00 - C07D463/00
    • C07D471/02—Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, at least one ring being a six-membered ring with one nitrogen atom, not provided for by groups C07D451/00 - C07D463/00 in which the condensed system contains two hetero rings
    • C07D471/04—Ortho-condensed systems

Landscapes

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

Abstract

Catalysts for the synthesis of pyridine bases comprise silica, alumina or mixtures of these. Preferably the catalysts also contain titania, zirconia, ceria or thoria and may also contain zinc, cadmium, tin, lead, tungsten, nickel, cobalt, chromium, molybdenum, iron, copper, palladium or silver or a compound thereof. In the examples pyridines bases are synthesized from acrolein, ammonia and a saturated ketone using as catalyst (a) a mixture of silica and alumina impregnated with lead fluoride and (b) a mixture of silica and alumina.ALSO:Pyridine bases (pyridine and alkyl pyridines) are obtained by heating together a mixture of acrolein, ammonia and a saturated aliphatic ketone having at least one methyl group adjacent to the carbonyl group. The process is preferably carried out at 300-550 DEG C. in the presence of a condensation catalyst. The preferred catalysts are silica, alumina or mixtures of these which may contain titania, zirconia, ceria or thoria and certain other metals or metal compounds. Suitable ketones are, for example, acetone, methyl ethyl ketone, diethyl ketone and methyl isopropyl ketone. Among the products specified are pyridine, a -picoline, b -picoline, 2,4,6-collidine, 2,6-lutidine, 2-ethyl pyridine and 2-ethyl-3-methyl pyridine.
GB39455/60A 1960-11-17 1960-11-17 Production of pyridine bases Expired GB920526A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB39455/60A GB920526A (en) 1960-11-17 1960-11-17 Production of pyridine bases

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB39455/60A GB920526A (en) 1960-11-17 1960-11-17 Production of pyridine bases

Publications (1)

Publication Number Publication Date
GB920526A true GB920526A (en) 1963-03-06

Family

ID=10409641

Family Applications (1)

Application Number Title Priority Date Filing Date
GB39455/60A Expired GB920526A (en) 1960-11-17 1960-11-17 Production of pyridine bases

Country Status (1)

Country Link
GB (1) GB920526A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2639701A1 (en) * 1976-09-03 1978-03-09 Degussa METHOD FOR MANUFACTURING SUBSTITUTED PYRIDINS
DE2703069A1 (en) * 1977-01-26 1978-07-27 Degussa PROCESS FOR THE PREPARATION OF 2-METHYLPYRIDINE AND 3-METHYLPYRIDINE
DE2712694A1 (en) * 1977-03-23 1978-09-28 Degussa METHOD FOR MANUFACTURING SUBSTITUTED PYRIDINS
CN105732485A (en) * 2016-05-08 2016-07-06 邯郸市赵都精细化工有限公司 Method for synthesizing 3-picoline
CN114805184A (en) * 2022-05-06 2022-07-29 山东明化新材料有限公司 Method for preparing tri-methylpyridine

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2639701A1 (en) * 1976-09-03 1978-03-09 Degussa METHOD FOR MANUFACTURING SUBSTITUTED PYRIDINS
DE2703069A1 (en) * 1977-01-26 1978-07-27 Degussa PROCESS FOR THE PREPARATION OF 2-METHYLPYRIDINE AND 3-METHYLPYRIDINE
US4149002A (en) * 1977-01-26 1979-04-10 Deutsche Gold- Und Silber Scheideanstalt Vormals Roessler Process for the production of 2-methyl pyridine and 3-methyl pyridine
DE2712694A1 (en) * 1977-03-23 1978-09-28 Degussa METHOD FOR MANUFACTURING SUBSTITUTED PYRIDINS
CN105732485A (en) * 2016-05-08 2016-07-06 邯郸市赵都精细化工有限公司 Method for synthesizing 3-picoline
CN114805184A (en) * 2022-05-06 2022-07-29 山东明化新材料有限公司 Method for preparing tri-methylpyridine

Similar Documents

Publication Publication Date Title
GB1258963A (en)
GB920526A (en) Production of pyridine bases
Klingsberg 1, 3-Dithiolium Salts; A New Pseudoaromatic Cation
GB1426260A (en) Process for the production of aldehydes from olefinic compounds
Foley et al. Neutral conversion af aldoximes into nitriles at low temperature
GB924527A (en) Production of pyridine bases
GB887688A (en) Production of beta-picoline
GB971174A (en) Production of pyridine
GB917765A (en) Production of pyridine bases
GB907059A (en) Production of pyridine bases
GB900799A (en) Production of alpha-picoline and gamma-picoline
GB923347A (en) Production of alkyl pyridines
IT7822979A0 (en) PROCESS FOR MANUFACTURING NITROGUANIDINE FROM GUANIDINE NITRATE BY THE ACTION OF AQUEOUS SULFURIC ACID.
GB964993A (en) Production of 3-ethyl-4-methylpyridine and 2-n-propyl pyridine
US3463781A (en) Dehydrogenation and cyclization of amines
GB896049A (en) Production of ª--picoline
GB1419576A (en) Manufacture of melamine
US4118388A (en) Process for producing pyridine
GB906528A (en) Production of alkyl pyridines
GB963887A (en) Production of pyridine and ª‰-picoline
GB1114898A (en) Production of aromatic nitriles and catalysts for use therefor
GB966264A (en) Production of alkyl pyridines
GB2020270A (en) A process for the production of substituted pyridines
GB1222971A (en) Catalytic process for the manufacture of pyridine or methylpyridines
GB1510195A (en) Selective hydrogenating catalysts and a process for the preparation thereof