BR9508852A - Processo para a preparação de 3,4-didróxi-5-nitrobenzaldeido - Google Patents

Processo para a preparação de 3,4-didróxi-5-nitrobenzaldeido

Info

Publication number
BR9508852A
BR9508852A BR9508852A BR9508852A BR9508852A BR 9508852 A BR9508852 A BR 9508852A BR 9508852 A BR9508852 A BR 9508852A BR 9508852 A BR9508852 A BR 9508852A BR 9508852 A BR9508852 A BR 9508852A
Authority
BR
Brazil
Prior art keywords
nitrobenzaldehyde
pct
preparation
date
didroxy
Prior art date
Application number
BR9508852A
Other languages
English (en)
Inventor
Reijo Johannes Backstrom
Original Assignee
Orion Yhtymae 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 Yhtymae Oy filed Critical Orion Yhtymae Oy
Publication of BR9508852A publication Critical patent/BR9508852A/pt

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
    • 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
    • C07C201/16—Separation; Purification; Stabilisation; Use of additives

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Saccharide Compounds (AREA)
BR9508852A 1994-09-23 1995-09-20 Processo para a preparação de 3,4-didróxi-5-nitrobenzaldeido BR9508852A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9419274A GB9419274D0 (en) 1994-09-23 1994-09-23 New method for the preparation of 3,4-dihydroxy-5-nitrobenzaldehyde
PCT/FI1995/000513 WO1996009274A1 (en) 1994-09-23 1995-09-20 New method for the preparation of 3,4-dihydroxy-5-nitrobenzaldehyde

Publications (1)

Publication Number Publication Date
BR9508852A true BR9508852A (pt) 1999-05-04

Family

ID=10761838

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9508852A BR9508852A (pt) 1994-09-23 1995-09-20 Processo para a preparação de 3,4-didróxi-5-nitrobenzaldeido

Country Status (28)

Country Link
US (1) US5710343A (pt)
EP (1) EP0782559B1 (pt)
JP (1) JP3717933B2 (pt)
KR (1) KR100368163B1 (pt)
CN (1) CN1064673C (pt)
AT (1) ATE175660T1 (pt)
AU (1) AU684672B2 (pt)
BG (1) BG61912B1 (pt)
BR (1) BR9508852A (pt)
CA (1) CA2200227C (pt)
CZ (1) CZ288684B6 (pt)
DE (1) DE69507309T2 (pt)
DK (1) DK0782559T3 (pt)
ES (1) ES2127552T3 (pt)
GB (1) GB9419274D0 (pt)
GR (1) GR3029815T3 (pt)
HU (1) HU224821B1 (pt)
IL (1) IL115122A (pt)
LV (1) LV11831B (pt)
MX (1) MX9702064A (pt)
NO (1) NO306670B1 (pt)
NZ (1) NZ292187A (pt)
PL (1) PL180016B1 (pt)
RO (1) RO119540B1 (pt)
RU (1) RU2130449C1 (pt)
SI (1) SI9520102A (pt)
SK (1) SK281789B6 (pt)
WO (1) WO1996009274A1 (pt)

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
SI2481410T1 (sl) * 2007-01-31 2017-01-31 Bial - Portela & Ca., S.A. Derivati nitrokatehola kot COMT inhibitorji, ki se dajejo s specifičnim dozirnim režimom
EP2251323B1 (en) 2009-05-14 2014-04-23 F.I.S.- Fabbrica Italiana Sintetici S.p.A. Method for the purification of entacapone
CN102633646B (zh) * 2012-04-10 2014-06-04 中国海洋大学 一种新的5-硝基水杨醛制备方法

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL279980A (pt) * 1961-06-21
FR1330382A (fr) * 1961-06-21 1963-06-21 Monsanto Chemicals Procédé de clivage des éthers d'alcoyle o-hydroxyphényle et de préparation simultanée de composés 1-alkyl-2,3-dihydroxyphényliques
US4213920A (en) * 1977-07-06 1980-07-22 Ciba-Geigy Corporation Process for the production of substituted benzaldehydes
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
DE4012008A1 (de) * 1990-04-13 1991-10-17 Bayer Ag Verfahren zur herstellung von o-hydroxy-benzaldehyden
GB9113431D0 (en) * 1991-06-20 1991-08-07 Orion Yhytma Oy Method for the preparation of 3,4-dihydroxy-5-nitrobenzaldehyde
SG45426A1 (en) * 1991-12-12 1998-01-16 Roussel Uclaf Novel cephalosporins substituted in the 7-position by a benzylamino radical processes for their preparation and their use as medicaments
GB9419274D0 (en) * 1994-09-23 1994-11-09 Orion Yhtymae Oy New method for the preparation of 3,4-dihydroxy-5-nitrobenzaldehyde

Also Published As

Publication number Publication date
GR3029815T3 (en) 1999-06-30
KR100368163B1 (ko) 2003-03-26
BG61912B1 (bg) 1998-09-30
LV11831B (en) 1997-12-20
SI9520102A (en) 1997-08-31
ATE175660T1 (de) 1999-01-15
RO119540B1 (ro) 2004-12-30
NZ292187A (en) 1997-12-19
CA2200227C (en) 2005-09-13
IL115122A0 (en) 1995-12-08
JPH10505849A (ja) 1998-06-09
BG101309A (en) 1997-10-31
AU684672B2 (en) 1997-12-18
CZ80097A3 (cs) 1998-03-18
SK37897A3 (en) 1997-11-05
CN1164852A (zh) 1997-11-12
MX9702064A (es) 1997-10-31
NO306670B1 (no) 1999-12-06
DK0782559T3 (da) 1999-08-30
WO1996009274A1 (en) 1996-03-28
PL319348A1 (en) 1997-08-04
JP3717933B2 (ja) 2005-11-16
PL180016B1 (en) 2000-11-30
CA2200227A1 (en) 1996-03-28
CZ288684B6 (cs) 2001-08-15
US5710343A (en) 1998-01-20
EP0782559A1 (en) 1997-07-09
RU2130449C1 (ru) 1999-05-20
EP0782559B1 (en) 1999-01-13
ES2127552T3 (es) 1999-04-16
HU224821B1 (en) 2006-02-28
IL115122A (en) 1999-07-14
GB9419274D0 (en) 1994-11-09
LV11831A (lv) 1997-08-20
DE69507309T2 (de) 1999-07-15
CN1064673C (zh) 2001-04-18
AU3390195A (en) 1996-04-09
HUT77441A (hu) 1998-04-28
DE69507309D1 (de) 1999-02-25
NO971325L (no) 1997-03-21
SK281789B6 (sk) 2001-08-06
NO971325D0 (no) 1997-03-21
KR970706234A (ko) 1997-11-03

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Legal Events

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B24C Patent annual fee: request for for restoration

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B21F Lapse acc. art. 78, item iv - on non-payment of the annual fees in time

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