GB1134651A - Fluoropyridines - Google Patents

Fluoropyridines

Info

Publication number
GB1134651A
GB1134651A GB4971664A GB4971664A GB1134651A GB 1134651 A GB1134651 A GB 1134651A GB 4971664 A GB4971664 A GB 4971664A GB 4971664 A GB4971664 A GB 4971664A GB 1134651 A GB1134651 A GB 1134651A
Authority
GB
United Kingdom
Prior art keywords
cooh
tetrafluoropyridine
trifluoropyridine
polyfluoropyridines
polyfluoropyridine
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
GB4971664A
Inventor
Richard Dickinson Chambers
William Kenneth Rodgerson
Musgrave
Frederick Gerald Drake-Smith
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.)
National Research Development Corp UK
Original Assignee
National Research Development Corp UK
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 National Research Development Corp UK filed Critical National Research Development Corp UK
Priority to GB4971664A priority Critical patent/GB1134651A/en
Publication of GB1134651A publication Critical patent/GB1134651A/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
    • 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
    • C07D213/61—Halogen atoms or nitro radicals

Landscapes

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

Abstract

1,134,651. Polyfluoropyridine carboxylic acids; polyfluoropyridines and lithium derivatives thereof. NATIONAL RESEARCH DEVELOPMENT CORP. 18 Nov., 1965 [7 Dec., 1964; 26 May, 1965], Nos. 49716/64 and 22396/65. Headings C2C and C2J. Compounds of the general formula wherein one of the symbols R 1 , R 2 and R 3 is -COOH whilst the other two are F, and R is F or, when R 2 is -COOH, R 4 is H, F or -COOH, are prepared by converting 2,4,6- trifluoropyridine or a tetrafluoropyridine into the corresponding lithium derivative at a low temperature, reacting this with CO 2 , and hydrolysing the resulting product. The tri- and tetrafluoropyridine starting materials are obtained by hydrogenolysis of pentafluoropyridine, 3 - chlorotetrafluoro - pyridine or 3,5 - dichlorotrifluoropyridine. 2,5,6 - Trifluoropyridine is also obtained by this method from 3-chlorotetrafluoropyridine.
GB4971664A 1964-12-07 1964-12-07 Fluoropyridines Expired GB1134651A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB4971664A GB1134651A (en) 1964-12-07 1964-12-07 Fluoropyridines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4971664A GB1134651A (en) 1964-12-07 1964-12-07 Fluoropyridines

Publications (1)

Publication Number Publication Date
GB1134651A true GB1134651A (en) 1968-11-27

Family

ID=10453297

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4971664A Expired GB1134651A (en) 1964-12-07 1964-12-07 Fluoropyridines

Country Status (1)

Country Link
GB (1) GB1134651A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2686340A1 (en) * 1992-01-22 1993-07-23 Poudres & Explosifs Ste Nale Process for the synthesis of ortho-halogenated pyridinecarboxylic acids or pyridinecarboxamides and new ortho-fluorinated pyridinecarboxylic acids or pyridinecarboxamides
US7141590B2 (en) 2000-12-29 2006-11-28 Ucb Sa Pharmaceutical uses and synthesis of nicotinanilide-N-oxides

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2686340A1 (en) * 1992-01-22 1993-07-23 Poudres & Explosifs Ste Nale Process for the synthesis of ortho-halogenated pyridinecarboxylic acids or pyridinecarboxamides and new ortho-fluorinated pyridinecarboxylic acids or pyridinecarboxamides
US7141590B2 (en) 2000-12-29 2006-11-28 Ucb Sa Pharmaceutical uses and synthesis of nicotinanilide-N-oxides

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