ES8500880A1 - Procedimiento para preparar dihidroxibencenos sustituidos asi como sus monoeteres - Google Patents

Procedimiento para preparar dihidroxibencenos sustituidos asi como sus monoeteres

Info

Publication number
ES8500880A1
ES8500880A1 ES529733A ES529733A ES8500880A1 ES 8500880 A1 ES8500880 A1 ES 8500880A1 ES 529733 A ES529733 A ES 529733A ES 529733 A ES529733 A ES 529733A ES 8500880 A1 ES8500880 A1 ES 8500880A1
Authority
ES
Spain
Prior art keywords
catalyst
hydrogen peroxide
water
azeotrope
phenol
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
ES529733A
Other languages
English (en)
Other versions
ES529733A0 (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.)
Evonik Operations GmbH
Original Assignee
Degussa GmbH
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6193235&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=ES8500880(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Degussa GmbH filed Critical Degussa GmbH
Publication of ES8500880A1 publication Critical patent/ES8500880A1/es
Publication of ES529733A0 publication Critical patent/ES529733A0/es
Granted legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C37/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring
    • C07C37/60—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring by oxidation reactions introducing directly hydroxy groups on a =CH-group belonging to a six-membered aromatic ring with the aid of other oxidants than molecular oxygen or their mixtures with molecular oxygen
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C41/00—Preparation of ethers; Preparation of compounds having groups, groups or groups
    • C07C41/01—Preparation of ethers
    • C07C41/18—Preparation of ethers by reactions not forming ether-oxygen bonds
    • C07C41/26—Preparation of ethers by reactions not forming ether-oxygen bonds by introduction of hydroxy or O-metal groups
    • 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)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
  • Hydrogenated Pyridines (AREA)
  • Liquid Crystal Substances (AREA)

Abstract

PROCEDIMIENTO PARA PREPARAR DIHIDROXIBENCENOS SUSTITUIDOS ASI COMO SUS MONOETERES.CONSISTE EN LA HIDROXILACION EN EL NUCLEO DE LOS FENOLES O FENOLETERES CON PEROXIDO DE HIDROGENO EN DISOLVENTES ORGANICOS Y EN PRESENCIA DE UN CATALIZADOR, LLEVANDOSE A CABO LA REACCION CON SOLUCIONES DE PEROXIDO DE HIDROGENO QUE SON ANHIDRAS Y QUE TIENEN UN CONTENIDO DE AGUA INFERIOR A 0,5 EN PESO Y QUE SE PREPARAN CON DISOLVENTES ORGANICOS QUE FORMAN CON AGUA AZEOTROPOS, CUYOS PUNTOS DE EBULLICION AZEOTROPICOS ESTAN SITUADOS POR DEBAJO DEL PUNTO DE EBULLICION DEL PEROXIDO DE HIDROGENO, REFERIDO A LA PRESION NORMAL, ASI COMO EN PRESENCIA DE DIOXIDO DE AZUFRE GASEOSO EN CANTIDAD COMPRENDIDA ENTRE 0,001 A 0,1 MOLES.SE EMPLEAN EN LA PREPARACION DE COLORANTES, EN LA PRODUCCION DE MATERIALES SINTETICOS, EN LA FOTOGRAFIA O PARA LA PREPARACION DE IMPORTANTES AGENTES FITOPROTECTORES.
ES529733A 1983-03-11 1984-02-15 Procedimiento para preparar dihidroxibencenos sustituidos asi como sus monoeteres Granted ES529733A0 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3308769A DE3308769C2 (de) 1983-03-11 1983-03-11 Verfahren zur Herstellung von Dihydroxybenzolen

Publications (2)

Publication Number Publication Date
ES8500880A1 true ES8500880A1 (es) 1984-11-01
ES529733A0 ES529733A0 (es) 1984-11-01

Family

ID=6193235

Family Applications (1)

Application Number Title Priority Date Filing Date
ES529733A Granted ES529733A0 (es) 1983-03-11 1984-02-15 Procedimiento para preparar dihidroxibencenos sustituidos asi como sus monoeteres

Country Status (10)

Country Link
US (1) US4533766A (es)
EP (1) EP0122374B1 (es)
JP (1) JPS59170026A (es)
AT (1) ATE29874T1 (es)
BR (1) BR8400904A (es)
CA (1) CA1201449A (es)
DE (2) DE3308769C2 (es)
ES (1) ES529733A0 (es)
FI (1) FI840689A (es)
IL (1) IL71076A (es)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3308737C2 (de) * 1983-03-11 1985-01-24 Degussa Ag, 6000 Frankfurt Verfahren zur Herstellung von Brenzcatechin und Hydrochinon
DE3308763C2 (de) * 1983-03-11 1985-01-24 Degussa Ag, 6000 Frankfurt Verfahren zur Herstellung von Dihydroxybenzolen
DE3334854A1 (de) * 1983-09-27 1985-04-11 Degussa Ag, 6000 Frankfurt Verfahren zur herstellung nichtwaessriger wasserstoffperoxidloesungen und deren verwendung
US4814521A (en) * 1985-06-07 1989-03-21 Kureha Kagaku Kogyo Kabushiki Kaisha Process for producing 2,6-dihydroxynaphthalene and 2,6-diacetoxynaphthalene
DE3602180A1 (de) * 1986-01-25 1987-07-30 Degussa Verfahren zur herstellung von brenzkatechin und hydrochinon
DE3607924C1 (de) * 1986-03-11 1987-08-20 Degussa Verfahren zur Herstellung von Trihydroxybenzolen durch Hydroxylierung von Resorcin
DE3632075A1 (de) * 1986-09-20 1988-03-24 Degussa Verfahren zur herstellung von trihydroxy- bzw. alkoxyhydroxybenzolen
DE3643206C1 (de) * 1986-12-18 1988-03-24 Degussa Verfahren zur Herstellung von substituierten Dihydroxybenzolen
US5426244A (en) * 1991-12-20 1995-06-20 Mitsubishi Gas Chemical Company, Inc. Method for preparing dihydric phenols
ES2099338T3 (es) * 1992-10-09 1997-05-16 Hoechst Ag Oxidacion de hidroxi-benzaldehidos para la preparacion de compuestos de dihidroxi-benceno.
CN1085115C (zh) * 1998-03-10 2002-05-22 北京燕山石油化工公司研究院 苯酚羟基化用的复合氧化物催化剂及其制备方法
US20100212087A1 (en) * 2007-07-31 2010-08-26 Roger Leib Integrated patient room
CN102219650A (zh) * 2011-04-27 2011-10-19 南京工业大学 一种室温水溶液中苯酚羟基化制备苯二酚的方法

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2900412A (en) * 1958-08-07 1959-08-18 California Research Corp Oxidation process employing sulfur dioxide
FR1479354A (fr) * 1966-03-15 1967-05-05 Rhone Poulenc Sa Procédé d'obtention de polyphénols
FR2201279B1 (es) * 1972-09-28 1975-03-14 Rhone Poulenc Ind
DE2410742C3 (de) * 1974-03-06 1981-01-08 Bayer Ag, 5090 Leverkusen Verfahren zur Herstellung von Brenzkatechin und Hydrochinon durch Kernhydroxylierung von Phenol
DE2410758C3 (de) * 1974-03-06 1981-01-08 Bayer Ag, 5090 Leverkusen Verfahren zur Herstellung von mehrwertigen substituierten Phenolen bzw. Monoäthern mehrwertiger Phenole durch Kernhydroxylierung von Phenolen oder Phenoläthern
US4111967A (en) * 1974-11-09 1978-09-05 Bayer Aktiengesellschaft Silicon containing catalysts
DE2658943C3 (de) * 1976-12-24 1982-02-18 Bayer Ag, 5090 Leverkusen Verfahren zur Herstellung von Brenzkatechin und Hydrochinon
US4258219A (en) * 1978-10-27 1981-03-24 Mitsui Toatsu Chemicals, Inc. Process for producing hydroquinone
DE3308737C2 (de) * 1983-03-11 1985-01-24 Degussa Ag, 6000 Frankfurt Verfahren zur Herstellung von Brenzcatechin und Hydrochinon
DE3437624C1 (de) * 1984-10-13 1986-01-23 Degussa Ag, 6000 Frankfurt Verfahren und Vorrichtung zur Bestimmung und Überwachung von Wasserstoffperoxid-Konzentrationen in Schwefelsäure-Wasserstoffperoxidgemischen

Also Published As

Publication number Publication date
BR8400904A (pt) 1984-10-16
FI840689A0 (fi) 1984-02-20
EP0122374B1 (de) 1987-09-23
DE3308769C2 (de) 1985-01-24
DE3466384D1 (en) 1987-10-29
EP0122374A3 (en) 1986-01-02
FI840689A (fi) 1984-09-12
JPS59170026A (ja) 1984-09-26
CA1201449A (en) 1986-03-04
US4533766A (en) 1985-08-06
ES529733A0 (es) 1984-11-01
EP0122374A2 (de) 1984-10-24
DE3308769A1 (de) 1984-09-13
ATE29874T1 (de) 1987-10-15
IL71076A0 (en) 1984-05-31
IL71076A (en) 1987-10-30

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