GB1366373A - Process for the production of 3 5 dialkyl pyridines - Google Patents

Process for the production of 3 5 dialkyl pyridines

Info

Publication number
GB1366373A
GB1366373A GB4281871A GB4281871A GB1366373A GB 1366373 A GB1366373 A GB 1366373A GB 4281871 A GB4281871 A GB 4281871A GB 4281871 A GB4281871 A GB 4281871A GB 1366373 A GB1366373 A GB 1366373A
Authority
GB
United Kingdom
Prior art keywords
aqueous phase
dialkyl
sept
water
sulphate
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
GB4281871A
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.)
Bayer AG
Original Assignee
Bayer AG
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 Bayer AG filed Critical Bayer AG
Publication of GB1366373A publication Critical patent/GB1366373A/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)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Pyridine Compounds (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)

Abstract

1366373 3,5-Dialkyl pyridlines BAYER AG 14 Sept 1971 [17 Sept 1970] 42818/71 Heading C2C 3,5-Dialkyl pyridines in which the alkyl groups are methyl or ethyl are prepared by reacting 1,1,1-trimethylol ethane and/or 1,1,1- trimethylol propane with ammonia, monomethylamine or dimethylamine or a mixture thereof in the presence of water and an acid catalyst for 2 to 20 hours at 240-320‹ C. and 40-200 atms., separating the product into an aqueous phase and a non-aqueous phase and recycling the aqueous phase to the reactor. The reaction may be carried out in the presence of a water-insoluble apolar solvent, e.g. petrol. Suitable acid catalysts are, for example, ammonium sulphate, methylammonium sulphate, and sulphonic acids and their ammonium salts.
GB4281871A 1970-09-17 1971-09-14 Process for the production of 3 5 dialkyl pyridines Expired GB1366373A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19702045886 DE2045886A1 (en) 1970-09-17 1970-09-17 Continuous process for the production of 3.5-dialkylpyridines from 1.1.1-trimethylolalkanes

Publications (1)

Publication Number Publication Date
GB1366373A true GB1366373A (en) 1974-09-11

Family

ID=5782631

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4281871A Expired GB1366373A (en) 1970-09-17 1971-09-14 Process for the production of 3 5 dialkyl pyridines

Country Status (5)

Country Link
BE (1) BE772767A (en)
DE (1) DE2045886A1 (en)
FR (1) FR2108258A5 (en)
GB (1) GB1366373A (en)
IT (1) IT954134B (en)

Also Published As

Publication number Publication date
BE772767A (en) 1972-03-17
DE2045886A1 (en) 1972-03-23
FR2108258A5 (en) 1972-05-19
IT954134B (en) 1973-08-30

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Legal Events

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