FR1071968A - Cyclic process for preparing isocinchomeronic acid and niacin and recovering niacin - Google Patents

Cyclic process for preparing isocinchomeronic acid and niacin and recovering niacin

Info

Publication number
FR1071968A
FR1071968A FR1071968DA FR1071968A FR 1071968 A FR1071968 A FR 1071968A FR 1071968D A FR1071968D A FR 1071968DA FR 1071968 A FR1071968 A FR 1071968A
Authority
FR
France
Prior art keywords
niacin
recovering
preparing
cyclic process
isocinchomeronic 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
Other languages
French (fr)
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.)
GIVAUDAN ETS
Original Assignee
GIVAUDAN ETS
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 GIVAUDAN ETS filed Critical GIVAUDAN ETS
Application granted granted Critical
Publication of FR1071968A publication Critical patent/FR1071968A/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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
FR1071968D 1951-12-27 1952-12-26 Cyclic process for preparing isocinchomeronic acid and niacin and recovering niacin Expired FR1071968A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US1071968XA 1951-12-27 1951-12-27

Publications (1)

Publication Number Publication Date
FR1071968A true FR1071968A (en) 1954-09-07

Family

ID=22315366

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1071968D Expired FR1071968A (en) 1951-12-27 1952-12-26 Cyclic process for preparing isocinchomeronic acid and niacin and recovering niacin

Country Status (1)

Country Link
FR (1) FR1071968A (en)

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