ES2091472T3 - Metodo para la preparacion de 3,4-dihidroxi-5-nitrobenzaldehido. - Google Patents

Metodo para la preparacion de 3,4-dihidroxi-5-nitrobenzaldehido.

Info

Publication number
ES2091472T3
ES2091472T3 ES92911745T ES92911745T ES2091472T3 ES 2091472 T3 ES2091472 T3 ES 2091472T3 ES 92911745 T ES92911745 T ES 92911745T ES 92911745 T ES92911745 T ES 92911745T ES 2091472 T3 ES2091472 T3 ES 2091472T3
Authority
ES
Spain
Prior art keywords
reaction
dihidroxi
preparation
nitrobenzaldehido
strong
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 - Lifetime
Application number
ES92911745T
Other languages
English (en)
Inventor
Erkki Honkanen
Stig Lindholm
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.)
Orion Oyj
Original Assignee
Orion Yhtyma Oy
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 Orion Yhtyma Oy filed Critical Orion Yhtyma Oy
Application granted granted Critical
Publication of ES2091472T3 publication Critical patent/ES2091472T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C205/00—Compounds containing nitro groups bound to a carbon skeleton
    • C07C205/44—Compounds containing nitro groups bound to a carbon skeleton the carbon skeleton being further substituted by —CHO groups
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C201/00—Preparation of esters of nitric or nitrous acid or of compounds containing nitro or nitroso groups bound to a carbon skeleton
    • C07C201/06—Preparation of nitro compounds
    • C07C201/12—Preparation of nitro compounds by reactions not involving the formation of nitro groups

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

SE PRESENTA UN METODO PARA LA PREPARACION DE 3,4-DIHIDROXI-5NITROBENZALDEHIDO MEDIANTE LA REACCION DE 4-HIDROXI-3-METOXI-5NITROBENZALDEHIDO CON UN AGENTE NUCLEOFILICO FUERTE QUE PUEDE SER CREADO MEDIANTE LA REACCION DE UN COMPUESTO DE MERCAPTO AROMATICO CON UNA BASE DE METAL ALCALI FUERTE, ORGANICA O INORGANICA, TAL COMO HIDROXIDO DE LITIO, LA REACCION SE REALIZA A TEMPERATURA ELEVADA USANDO UN SOLVENTE POLAR, APROTICO. LA REACCION SE LLEVA A CABO PREFERIBLEMENTE EN UNA ATMOSFERA INERTE.
ES92911745T 1991-06-20 1992-06-18 Metodo para la preparacion de 3,4-dihidroxi-5-nitrobenzaldehido. Expired - Lifetime ES2091472T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB919113431A GB9113431D0 (en) 1991-06-20 1991-06-20 Method for the preparation of 3,4-dihydroxy-5-nitrobenzaldehyde

Publications (1)

Publication Number Publication Date
ES2091472T3 true ES2091472T3 (es) 1996-11-01

Family

ID=10697088

Family Applications (1)

Application Number Title Priority Date Filing Date
ES92911745T Expired - Lifetime ES2091472T3 (es) 1991-06-20 1992-06-18 Metodo para la preparacion de 3,4-dihidroxi-5-nitrobenzaldehido.

Country Status (23)

Country Link
US (1) US5382699A (es)
EP (1) EP0589948B1 (es)
JP (1) JP3048639B2 (es)
KR (1) KR100241132B1 (es)
AT (1) ATE142192T1 (es)
AU (1) AU650149B2 (es)
BG (1) BG62163B1 (es)
CA (1) CA2110583C (es)
CZ (1) CZ281933B6 (es)
DE (1) DE69213452T2 (es)
DK (1) DK0589948T3 (es)
EE (1) EE03068B1 (es)
ES (1) ES2091472T3 (es)
FI (1) FI104715B (es)
GB (1) GB9113431D0 (es)
GR (1) GR3021052T3 (es)
HU (1) HU211121B (es)
NO (1) NO178298C (es)
PL (1) PL169522B1 (es)
RO (1) RO115157B1 (es)
RU (1) RU2098405C1 (es)
SK (1) SK281800B6 (es)
WO (1) WO1993000323A1 (es)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9419274D0 (en) * 1994-09-23 1994-11-09 Orion Yhtymae Oy New method for the preparation of 3,4-dihydroxy-5-nitrobenzaldehyde
US7339060B2 (en) 2005-03-23 2008-03-04 Resolution Chemicals, Ltd. Preparation of cabergoline
US20070197576A1 (en) * 2006-02-08 2007-08-23 Resolution Chemicals Limited Production of Cabergoline and Novel Polymorphic Form Thereof
EP2251323B1 (en) 2009-05-14 2014-04-23 F.I.S.- Fabbrica Italiana Sintetici S.p.A. Method for the purification of entacapone

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL279980A (es) * 1961-06-21
US4009210A (en) * 1975-05-07 1977-02-22 Gulf Oil Corporation Process for manufacturing 3,5-ditert.butyl-4-hydroxybenzaldehyde by formylation of 2,6-ditert.butylphenol
DK175069B1 (da) * 1986-03-11 2004-05-24 Hoffmann La Roche Pyrocatecholderivater
YU213587A (en) * 1986-11-28 1989-06-30 Orion Yhtymae Oy Process for obtaining new pharmacologic active cateholic derivatives
FI864875A0 (fi) * 1986-11-28 1986-11-28 Orion Yhtymae Oy Nya farmakologiskt aktiva foereningar, dessa innehaollande kompositioner samt foerfarande och mellanprodukter foer anvaendning vid framstaellning av dessa.
GB2238047B (en) * 1989-11-03 1993-02-10 Orion Yhtymae Oy Stable polymorphic form of (e)-n,n-diethyl-2-cyano-3-(3,4-dihydroxy-5-nitrophenyl)acrylamide and the process for its preparation

Also Published As

Publication number Publication date
AU1898092A (en) 1993-01-25
DE69213452D1 (de) 1996-10-10
HU9303667D0 (en) 1994-04-28
US5382699A (en) 1995-01-17
AU650149B2 (en) 1994-06-09
CZ280493A3 (en) 1994-04-13
EP0589948B1 (en) 1996-09-04
CA2110583A1 (en) 1993-01-07
GR3021052T3 (en) 1996-12-31
BG98285A (bg) 1994-08-30
FI104715B (fi) 2000-03-31
BG62163B1 (bg) 1999-04-30
FI935657A0 (fi) 1993-12-16
NO934664D0 (no) 1993-12-16
FI935657L (fi) 1993-12-16
RU2098405C1 (ru) 1997-12-10
PL169522B1 (pl) 1996-07-31
NO934664L (no) 1993-12-16
ATE142192T1 (de) 1996-09-15
NO178298B (no) 1995-11-20
HUT66450A (en) 1994-11-28
EP0589948A1 (en) 1994-04-06
EE03068B1 (et) 1998-02-16
JPH06509064A (ja) 1994-10-13
DK0589948T3 (da) 1996-09-30
GB9113431D0 (en) 1991-08-07
KR100241132B1 (ko) 2000-03-02
HU211121B (en) 1995-10-30
RO115157B1 (ro) 1999-11-30
NO178298C (no) 1996-02-28
JP3048639B2 (ja) 2000-06-05
KR940701378A (ko) 1994-05-28
WO1993000323A1 (en) 1993-01-07
SK281800B6 (sk) 2001-08-06
SK144693A3 (en) 1994-11-09
CZ281933B6 (cs) 1997-04-16
DE69213452T2 (de) 1997-01-23
CA2110583C (en) 2003-04-08

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