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ES8609208A1 - Procedimiento de preparacion de p-aminofenoles - Google Patents

Procedimiento de preparacion de p-aminofenoles

Info

Publication number
ES8609208A1
ES8609208A1 ES549140A ES549140A ES8609208A1 ES 8609208 A1 ES8609208 A1 ES 8609208A1 ES 549140 A ES549140 A ES 549140A ES 549140 A ES549140 A ES 549140A ES 8609208 A1 ES8609208 A1 ES 8609208A1
Authority
ES
Spain
Prior art keywords
formula
produced
amino phenols
electrolysis
preparing
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
ES549140A
Other languages
English (en)
Other versions
ES549140A0 (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.)
Farmaceutisk Laboratorium Ferring AS
Original Assignee
Farmaceutisk Laboratorium Ferring AS
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 Farmaceutisk Laboratorium Ferring AS filed Critical Farmaceutisk Laboratorium Ferring AS
Publication of ES549140A0 publication Critical patent/ES549140A0/es
Publication of ES8609208A1 publication Critical patent/ES8609208A1/es
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
    • C25B3/00—Electrolytic production of organic compounds
    • C25B3/20—Processes
    • C25B3/25—Reduction

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)

Abstract

PROCEDIMIENTO DE PREPARACION DE P-AMINOFENOLES. CONSISTE EN REDUCIR ELECTROLITICAMENTE P-FENILAZOFENOLES DE FORMULA (II) PARA OBTENER P-AMINOFENOLES DE FORMULA (I) DONDR R1 Y R2 SON INDEPENDIENTEMENTE HIDROGENO, ALQUILO FACULTATIVAMENTE SUSTITUIDO, HALOGENO, COOH, SO3H O NO2. LA ELECTROLISIS SE REALIZA EN UN MEDIO BASICO A UN VALOR DE PH IGUAL AL VALOR DE PKA DEL P-FENILAZOFENOL Y A UNA TEMPERATURA DE UNOS 70 A 100JC, DONDE EL POTENCIAL SE HALLA ENTRE 0,1 Y 0,7 V MAS NEGATIVO QUE EL POTENCIAL DE MEDIADONA DEL COMPUESTO QUE SE REDUCE, AL VALOR DE PH UTILIZADO. TIENE APLICACIONES FARMACOLOGICAS COMO COMPUESTO ACTIVO VALIOSO EN CIERTOS MEDICAMENTOS PARA EL TRATAMIENTO DE COLITIS ULCEROSA Y LA ENFERMEDAD DE CRO
ES549140A 1984-11-22 1985-11-21 Procedimiento de preparacion de p-aminofenoles Expired ES8609208A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DK553784A DK153412C (da) 1984-11-22 1984-11-22 Fremgangsmaade til fremstilling af p-aminophenoler ved elektrolyse

Publications (2)

Publication Number Publication Date
ES549140A0 ES549140A0 (es) 1986-09-01
ES8609208A1 true ES8609208A1 (es) 1986-09-01

Family

ID=8143298

Family Applications (1)

Application Number Title Priority Date Filing Date
ES549140A Expired ES8609208A1 (es) 1984-11-22 1985-11-21 Procedimiento de preparacion de p-aminofenoles

Country Status (10)

Country Link
US (1) US4670112A (es)
EP (1) EP0203122B1 (es)
JP (1) JPS62501218A (es)
DD (1) DD242640A5 (es)
DE (1) DE3569724D1 (es)
DK (1) DK153412C (es)
ES (1) ES8609208A1 (es)
HU (1) HU199106B (es)
SU (1) SU1493101A3 (es)
WO (1) WO1986003194A1 (es)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT398316B (de) * 1989-06-01 1994-11-25 Verein Zur Foerderung Der Fors Verfahren zur reduktion von farbstoffen
DE4020056A1 (de) * 1990-06-23 1992-01-02 Bayer Ag Verfahren zur herstellung sehr reiner 5-aminosalicylsaeure
DE10029410A1 (de) 2000-06-15 2002-01-03 Bfgoodrich Diamalt Gmbh Verfahren zur Herstellung von 5-Aminosalicylsäure
ES2254470T3 (es) 2000-08-29 2006-06-16 Nobex Corporation Compuestos inmunorreguladores, derivados de los mismos y su uso.
CA2359812C (en) * 2000-11-20 2004-02-10 The Procter & Gamble Company Pharmaceutical dosage form with multiple coatings for reduced impact of coating fractures
US8048924B2 (en) * 2001-08-29 2011-11-01 Biocon Limited Methods and compositions employing 4-aminophenylacetic acid compounds
PL1773767T3 (pl) 2004-07-07 2016-07-29 Biocon Ltd Synteza azowo związanych związków immunoregulacyjnych

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1542265A (en) * 1922-10-20 1925-06-16 James F Norris Process of making aminosalicylic acid
US1882758A (en) * 1929-03-19 1932-10-18 Dow Chemical Co Preparation of amino-phenols and primary aryl amines conjointly
GB1308042A (en) * 1969-05-28 1973-02-21 Brown John Constr Process for the preparation of rho-amino phenol by the electrolytic reduction of nitrobenzene
GB1421118A (en) * 1971-11-16 1976-01-14 Albright & Wilson Electrolytic reduction of nitrosophenols

Also Published As

Publication number Publication date
DK553784D0 (da) 1984-11-22
DD242640A5 (de) 1987-02-04
JPS62501218A (ja) 1987-05-14
ES549140A0 (es) 1986-09-01
SU1493101A3 (ru) 1989-07-07
DK153412B (da) 1988-07-11
EP0203122B1 (en) 1989-04-26
DK153412C (da) 1988-12-19
WO1986003194A1 (en) 1986-06-05
EP0203122A1 (en) 1986-12-03
HUT42057A (en) 1987-06-29
US4670112A (en) 1987-06-02
DE3569724D1 (en) 1989-06-01
DK553784A (da) 1986-05-23
HU199106B (en) 1990-01-29

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Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 19990201