ES8303331A1 - Un procedimiento para preparar un pirrol-2-acetato de alquilo inferior sustituido en las posiciones 1 y 4. - Google Patents

Un procedimiento para preparar un pirrol-2-acetato de alquilo inferior sustituido en las posiciones 1 y 4.

Info

Publication number
ES8303331A1
ES8303331A1 ES506775A ES506775A ES8303331A1 ES 8303331 A1 ES8303331 A1 ES 8303331A1 ES 506775 A ES506775 A ES 506775A ES 506775 A ES506775 A ES 506775A ES 8303331 A1 ES8303331 A1 ES 8303331A1
Authority
ES
Spain
Prior art keywords
substituted pyrroles
producing substituted
pyrrole
recovered
reaction
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
ES506775A
Other languages
English (en)
Other versions
ES506775A0 (es
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.)
Ethyl Corp
Original Assignee
Ethyl 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 Ethyl Corp filed Critical Ethyl Corp
Publication of ES8303331A1 publication Critical patent/ES8303331A1/es
Publication of ES506775A0 publication Critical patent/ES506775A0/es
Granted 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
    • C07D207/30—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 two double bonds between ring members or between ring members and non-ring members
    • C07D207/32—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 two double bonds between ring members or between ring members and non-ring members with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached to ring carbon atoms
    • C07D207/33—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 two double bonds between ring members or between ring members and non-ring members with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached to ring carbon atoms with substituted hydrocarbon radicals, directly attached to ring carbon atoms
    • C07D207/337—Radicals substituted by carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals
    • 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
    • C07D207/30—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 two double bonds between ring members or between ring members and non-ring members
    • C07D207/34—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 two double bonds between ring members or between ring members and non-ring members 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/50—Improvements relating to the production of bulk chemicals
    • Y02P20/582—Recycling of unreacted starting or intermediate materials

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Pyrrole Compounds (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Saccharide Compounds (AREA)
  • Preparation Of Compounds By Using Micro-Organisms (AREA)

Abstract

PROCEDIMIENTO PARA PREPARAR UN PIRROL-2-ACETATO DE ALQUILO INFERIOR SUSTITUIDO EN LAS POSICIONES 1 Y 4, QUE TIENE LA FORMULA GENERAL (I), EN DONDE R4 Y R5 SE SELECCIONAN CADA UNO DE ELLOS INDEPENDIENTEMENTE DE GRUPOS DE ALQUILO INFERIOR. CONSISTE EN PONER EN CONTACTO UN COMPUESTO REACTIVO DE PIRROL, DE FORMULA GENERAL (II), EN DONDE R4 Y R5 TIENEN LOS SIGNIFICADOS YA INDICADOS; Y R7 Y R8 SE SELECCIONAN CADA UNO DE ELLOS INDEPENDIENTEMENTE ENTRE RADICALES -COOH, -COO, -ALQUILO INFERIOR, Y -COOM, DONDE M SIGNIFICA SODIO O POTASIO, CON UNA MEZCLA DE ACIDO MINERAL FUERTE, UN ALCANOL INFERIOR Y AGUA. DE APLICACION EN FARMACIA POR SU ACTIVIDAD ANTINFLAMATORIA. *FORMULA*
ES506775A 1980-11-03 1981-11-02 Un procedimiento para preparar un pirrol-2-acetato de alquilo inferior sustituido en las posiciones 1 y 4. Granted ES506775A0 (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US20305280A 1980-11-03 1980-11-03
US20995080A 1980-11-24 1980-11-24

Publications (2)

Publication Number Publication Date
ES8303331A1 true ES8303331A1 (es) 1983-02-01
ES506775A0 ES506775A0 (es) 1983-02-01

Family

ID=26898265

Family Applications (1)

Application Number Title Priority Date Filing Date
ES506775A Granted ES506775A0 (es) 1980-11-03 1981-11-02 Un procedimiento para preparar un pirrol-2-acetato de alquilo inferior sustituido en las posiciones 1 y 4.

Country Status (7)

Country Link
EP (1) EP0051442A1 (es)
JP (1) JPS57501849A (es)
CA (1) CA1161851A (es)
DK (1) DK297582A (es)
ES (1) ES506775A0 (es)
NO (1) NO822322L (es)
WO (1) WO1982001552A1 (es)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4374997A (en) * 1981-06-04 1983-02-22 Merck & Co., Inc. Process for the preparation of zomepirac and related compounds

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL6512721A (es) * 1964-03-25 1966-04-13
US3952012A (en) * 1970-01-26 1976-04-20 Mcneil Laboratories, Incorporated Aroyl-substituted pyrroles
US3752826A (en) * 1970-01-26 1973-08-14 Mcneilab Inc Aroyl substituted pyrroles

Also Published As

Publication number Publication date
CA1161851A (en) 1984-02-07
DK297582A (da) 1982-07-02
ES506775A0 (es) 1983-02-01
WO1982001552A1 (en) 1982-05-13
NO822322L (no) 1982-07-02
JPS57501849A (es) 1982-10-14
EP0051442A1 (en) 1982-05-12

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