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BG101309A - Нов метод за получаване на 3,4-дихидрокси-5-нитробензалдехид - Google Patents

Нов метод за получаване на 3,4-дихидрокси-5-нитробензалдехид

Info

Publication number
BG101309A
BG101309A BG101309A BG10130997A BG101309A BG 101309 A BG101309 A BG 101309A BG 101309 A BG101309 A BG 101309A BG 10130997 A BG10130997 A BG 10130997A BG 101309 A BG101309 A BG 101309A
Authority
BG
Bulgaria
Prior art keywords
preparation
nitrobenzaldenyde
dihydroxy
new method
nitrobenzadehyde
Prior art date
Application number
BG101309A
Other languages
English (en)
Other versions
BG61912B1 (bg
Inventor
Reijo Baeckstroem
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 BG101309A publication Critical patent/BG101309A/bg
Publication of BG61912B1 publication Critical patent/BG61912B1/bg

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)

Abstract

Методът за получаване на 3,4-дихидрокси-5-нитробензалдехид се осъществявачрез взаимодействие на 3-етокси-4-хидрокси-5-нитробензалдехид с реагент, включващ цинков хлорид, вода и хлороводород.
BG101309A 1994-09-23 1997-03-11 Нов метод за получаване на 3,4-дихидрокси-5-нитробензалдехид BG61912B1 (bg)

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 (2)

Publication Number Publication Date
BG101309A true BG101309A (bg) 1997-10-31
BG61912B1 BG61912B1 (bg) 1998-09-30

Family

ID=10761838

Family Applications (1)

Application Number Title Priority Date Filing Date
BG101309A BG61912B1 (bg) 1994-09-23 1997-03-11 Нов метод за получаване на 3,4-дихидрокси-5-нитробензалдехид

Country Status (28)

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

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
EP2124947B1 (en) * 2007-01-31 2017-07-19 BIAL - Portela & Ca., S.A. Dosage regimen for comt inhibitors
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
NO107714C (bg) * 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
SK37897A3 (en) 1997-11-05
DE69507309D1 (de) 1999-02-25
KR970706234A (ko) 1997-11-03
KR100368163B1 (ko) 2003-03-26
AU3390195A (en) 1996-04-09
DE69507309T2 (de) 1999-07-15
US5710343A (en) 1998-01-20
DK0782559T3 (da) 1999-08-30
ATE175660T1 (de) 1999-01-15
IL115122A0 (en) 1995-12-08
LV11831B (en) 1997-12-20
HUT77441A (hu) 1998-04-28
PL319348A1 (en) 1997-08-04
LV11831A (lv) 1997-08-20
NO306670B1 (no) 1999-12-06
CA2200227C (en) 2005-09-13
IL115122A (en) 1999-07-14
CN1164852A (zh) 1997-11-12
NO971325D0 (no) 1997-03-21
AU684672B2 (en) 1997-12-18
HU224821B1 (en) 2006-02-28
BG61912B1 (bg) 1998-09-30
CZ288684B6 (cs) 2001-08-15
RU2130449C1 (ru) 1999-05-20
SI9520102A (en) 1997-08-31
CA2200227A1 (en) 1996-03-28
EP0782559B1 (en) 1999-01-13
BR9508852A (pt) 1999-05-04
CN1064673C (zh) 2001-04-18
EP0782559A1 (en) 1997-07-09
PL180016B1 (en) 2000-11-30
NO971325L (no) 1997-03-21
SK281789B6 (sk) 2001-08-06
CZ80097A3 (cs) 1998-03-18
RO119540B1 (ro) 2004-12-30
ES2127552T3 (es) 1999-04-16
GR3029815T3 (en) 1999-06-30
NZ292187A (en) 1997-12-19
JP3717933B2 (ja) 2005-11-16
MX9702064A (es) 1997-10-31
JPH10505849A (ja) 1998-06-09
GB9419274D0 (en) 1994-11-09
WO1996009274A1 (en) 1996-03-28

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