FR1133157A - Improvements to the resolution of dl-pyrrolidonecarboxylic acid - Google Patents

Improvements to the resolution of dl-pyrrolidonecarboxylic acid

Info

Publication number
FR1133157A
FR1133157A FR1133157DA FR1133157A FR 1133157 A FR1133157 A FR 1133157A FR 1133157D A FR1133157D A FR 1133157DA FR 1133157 A FR1133157 A FR 1133157A
Authority
FR
France
Prior art keywords
resolution
pyrrolidonecarboxylic acid
pyrrolidonecarboxylic
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.)
International Minerals and Chemical Corp
Original Assignee
International Minerals and Chemical Corp
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 International Minerals and Chemical Corp filed Critical International Minerals and Chemical Corp
Application granted granted Critical
Publication of FR1133157A publication Critical patent/FR1133157A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D207/00—Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom
    • C07D207/02—Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom with only hydrogen or carbon atoms directly attached to the ring nitrogen atom
    • C07D207/18—Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom with only hydrogen or carbon atoms directly attached to the ring nitrogen atom having one double bond between ring members or between a ring member and a non-ring member
    • C07D207/22—Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom with only hydrogen or carbon atoms directly attached to the ring nitrogen atom having one double bond between ring members or between a ring member and a non-ring member 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
    • C07D207/24—Oxygen or sulfur atoms
    • C07D207/26—2-Pyrrolidones
    • C07D207/273—2-Pyrrolidones 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 other ring carbon atoms
    • C07D207/277—Carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals
    • C07D207/28—2-Pyrrolidone-5- carboxylic acids; Functional derivatives thereof, e.g. esters, nitriles

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
FR1133157D 1955-07-28 1955-10-19 Improvements to the resolution of dl-pyrrolidonecarboxylic acid Expired FR1133157A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US1133157XA 1955-07-28 1955-07-28

Publications (1)

Publication Number Publication Date
FR1133157A true FR1133157A (en) 1957-03-21

Family

ID=22348753

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1133157D Expired FR1133157A (en) 1955-07-28 1955-10-19 Improvements to the resolution of dl-pyrrolidonecarboxylic acid

Country Status (1)

Country Link
FR (1) FR1133157A (en)

Similar Documents

Publication Publication Date Title
FR1153232A (en) Purification of terephthalic acid
FR1197430A (en) Imido-diphosphoric acid derivatives
FR1167049A (en) Manufacture of nitric acid
FR1165178A (en) Preparation of radioactive iodine 131
FR1116805A (en) Improvements relating to the preparation of pigments
FR1133157A (en) Improvements to the resolution of dl-pyrrolidonecarboxylic acid
FR1109475A (en) Improvements related to hydroformation
FR1169539A (en) Improvements to the preparation of trichlorobenzoic acid
FR1129654A (en) Improvements to the attack of ilmenitis
FR1135573A (en) Improvements to the construction of semi-trailers
FR1137203A (en) Purification of terephthalic acid
FR1136408A (en) Improvements in the synthesis of glutamic acid
FR1186118A (en) Improvements to the synthesis of dl-3 monoamide from 1-aminoglutaric acid dl-glutamine
FR68191E (en) Purification of terephthalic acid
FR1152610A (en) Purification of terephthalic acid
FR1131907A (en) Improvements to the preparation of diphenolic acid
FR1106018A (en) Acid detector
FR1120219A (en) Improvements to cable anchoring
FR1124276A (en) Manufacture of terephthalic acid
FR1120022A (en) Manufacture of terephthalic acid
BE543580A (en) PURIFICATION OF TEREPHTHALIC ACID.
FR1114144A (en) Improvements relating to the preparation of pigments
FR1135451A (en) Pesticides consisting of basic esters of phosphorothiolothionic acid
FR1179951A (en) Improvement in the preparation of orotic acid
FR1140270A (en) Purification of terephthalic acid