GB1363909A - Process for the production of pyridine carboxylic - Google Patents

Process for the production of pyridine carboxylic

Info

Publication number
GB1363909A
GB1363909A GB5214471A GB5214471A GB1363909A GB 1363909 A GB1363909 A GB 1363909A GB 5214471 A GB5214471 A GB 5214471A GB 5214471 A GB5214471 A GB 5214471A GB 1363909 A GB1363909 A GB 1363909A
Authority
GB
United Kingdom
Prior art keywords
pyridine carboxylic
production
pyridine
nov
carboxylic acid
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
GB5214471A
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 GB1363909A publication Critical patent/GB1363909A/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
    • C07D213/60—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 with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
    • C07D213/78—Carbon atoms having three bonds to hetero atoms, with at the most one bond to halogen, e.g. ester or nitrile radicals
    • C07D213/79—Acids; Esters
    • C07D213/803—Processes of preparation

Abstract

1363909 Pyridine carboxylic acids BAYER AG 10 Nov 1971 [10 Nov 1970] 52144/71 Heading C2C A pyridine carboxylic acid is produced by reacting an alkyl pyridine with oleum containing at least 60% by weight of sulphur trioxide in the presence of selenium dioxide at a temperature of from 260 to 350‹ C., the amount of oleum being sufficient to supply at least 50% of the hexavalent sulphur required for oxidation in the form of sulphur trioxide. The pyridine carboxylic acid ester may be formed, without isolating the acid from the reaction mixture, by mixing the latter with alcohol and then neutralizing at - 10 to + 10‹ C.
GB5214471A 1970-11-10 1971-11-10 Process for the production of pyridine carboxylic Expired GB1363909A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19702055102 DE2055102C3 (en) 1970-11-10 1970-11-10 Process for the preparation of pyridine mono- and dicarboxylic acids

Publications (1)

Publication Number Publication Date
GB1363909A true GB1363909A (en) 1974-08-21

Family

ID=5787602

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5214471A Expired GB1363909A (en) 1970-11-10 1971-11-10 Process for the production of pyridine carboxylic

Country Status (7)

Country Link
JP (1) JPS5116425B1 (en)
BE (1) BE775174A (en)
DD (1) DD95378A5 (en)
DE (1) DE2055102C3 (en)
FR (1) FR2113742A5 (en)
GB (1) GB1363909A (en)
IT (1) IT951596B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101891679A (en) * 2009-05-19 2010-11-24 上海华明高技术（集团）有限公司 Preparation method of pyridinedicarboxylic acid and diaminopyridine proton transfer compound

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101891679A (en) * 2009-05-19 2010-11-24 上海华明高技术（集团）有限公司 Preparation method of pyridinedicarboxylic acid and diaminopyridine proton transfer compound

Also Published As

Publication number Publication date
IT951596B (en) 1973-07-10
BE775174A (en) 1972-05-10
JPS5116425B1 (en) 1976-05-24
DE2055102B2 (en) 1978-08-31
DD95378A5 (en) 1973-02-05
DE2055102C3 (en) 1979-04-26
FR2113742A5 (en) 1972-06-23
DE2055102A1 (en) 1972-05-18

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee