BR9916648A - Processo para preparar ésteres glioxìlicos ou seus hidratos - Google Patents

Processo para preparar ésteres glioxìlicos ou seus hidratos

Info

Publication number
BR9916648A
BR9916648A BR9916648-8A BR9916648A BR9916648A BR 9916648 A BR9916648 A BR 9916648A BR 9916648 A BR9916648 A BR 9916648A BR 9916648 A BR9916648 A BR 9916648A
Authority
BR
Brazil
Prior art keywords
hydrates
glyoxylic acid
esters
preparing
catalyst
Prior art date
Application number
BR9916648-8A
Other languages
English (en)
Inventor
Curt Zimmermann
Alexander Sajtos
Original Assignee
Dsn Fine Chemicals Austria Nfg
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 Dsn Fine Chemicals Austria Nfg filed Critical Dsn Fine Chemicals Austria Nfg
Publication of BR9916648A publication Critical patent/BR9916648A/pt

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C67/00—Preparation of carboxylic acid esters
    • C07C67/30—Preparation of carboxylic acid esters by modifying the acid moiety of the ester, such modification not being an introduction of an ester group
    • C07C67/313—Preparation of carboxylic acid esters by modifying the acid moiety of the ester, such modification not being an introduction of an ester group by introduction of doubly bound oxygen containing functional groups, e.g. carboxyl groups
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C67/00—Preparation of carboxylic acid esters
    • C07C67/30—Preparation of carboxylic acid esters by modifying the acid moiety of the ester, such modification not being an introduction of an ester group
    • C07C67/31—Preparation of carboxylic acid esters by modifying the acid moiety of the ester, such modification not being an introduction of an ester group by introduction of functional groups containing oxygen only in singly bound form
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C67/00—Preparation of carboxylic acid esters
    • C07C67/03—Preparation of carboxylic acid esters by reacting an ester group with a hydroxy group

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)

Abstract

Patente de Invenção:<B>"PROCESSO PARA PREPARAR éSTERES GLIOXìLICOS OU SEUS HIDRATOS"<D>. A invenção refere-se a um processo para produzir ésteres de ácidos glioxílicos de éster de ácido glioxílico hemiacetais que a) são diretamente transesterificados com um álcool na presença de um catalisador, ou b) são primeiramente convertidos nos correspondentes de ácido glioxílico acetais e então transesterificados com um álcool na presença de um catalisador, em que após a) e b) os acetais são divididos fornecendo o desejado éster de ácido glioxílico livre ou seu hidrato.
BR9916648-8A 1998-12-28 1999-12-06 Processo para preparar ésteres glioxìlicos ou seus hidratos BR9916648A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT217398 1998-12-28
PCT/EP1999/009517 WO2000039068A1 (de) 1998-12-28 1999-12-06 Verfahren zur herstellung von glyoxylsäureestern oder deren hydrate

Publications (1)

Publication Number Publication Date
BR9916648A true BR9916648A (pt) 2001-10-02

Family

ID=3529292

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9916648-8A BR9916648A (pt) 1998-12-28 1999-12-06 Processo para preparar ésteres glioxìlicos ou seus hidratos

Country Status (20)

Country Link
EP (1) EP1140769B1 (pt)
JP (1) JP2002533427A (pt)
KR (1) KR20010099981A (pt)
CN (1) CN1332716A (pt)
AU (1) AU767512B2 (pt)
BR (1) BR9916648A (pt)
CA (1) CA2353854A1 (pt)
CZ (1) CZ20012374A3 (pt)
DE (1) DE59905592D1 (pt)
EA (1) EA003875B1 (pt)
ES (1) ES2194531T3 (pt)
HU (1) HUP0105470A2 (pt)
IL (1) IL143676A0 (pt)
NO (1) NO20013068L (pt)
NZ (1) NZ512248A (pt)
PL (1) PL348526A1 (pt)
SK (1) SK283694B6 (pt)
TR (1) TR200101977T2 (pt)
UA (1) UA62017C2 (pt)
WO (1) WO2000039068A1 (pt)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009221234A (ja) * 2009-07-09 2009-10-01 Takasago Internatl Corp グリオキシル酸エステル二量体の製造方法及び新規グリオキシル酸エステル二量体
US9302976B2 (en) 2012-02-28 2016-04-05 Petroliam Nasional Berhad Bio-polyols for bio-lubricant and bio-polymer and methods for the preparation thereof
CN104302612B (zh) 2012-02-28 2017-07-18 马来西亚国家石油公司 物质的润滑剂组合物及其制备方法
CN104271546B (zh) * 2012-02-28 2017-06-09 马来西亚国家石油公司 酯的生产方法及其用途
WO2013129910A1 (en) 2012-02-28 2013-09-06 Petroliam Nasional Berhard Composition of matter polyols for polyurethane applications
DK2820112T3 (en) 2012-02-28 2017-09-11 Petroliam Nasional Berhad PROCEDURE FOR PREPARING POLYOLS AND APPLICATIONS THEREOF
MY169226A (en) 2013-02-28 2019-03-19 Petroliam Nasional Berhad Preparation of biopolyol esters for lubricant application

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2710910B1 (fr) * 1993-10-05 1996-01-05 Hoechst France Sel de sodium de l'acide menthyloxycarbonyl-1 hydroxy-1 méthanesulfonique, son procédé de préparation et son application à l'obtention de glycoxylate de L(-)menthyle.

Also Published As

Publication number Publication date
EA003875B1 (ru) 2003-10-30
EA200100733A1 (ru) 2003-08-28
DE59905592D1 (de) 2003-06-18
EP1140769B1 (de) 2003-05-14
HUP0105470A2 (en) 2002-05-29
TR200101977T2 (tr) 2001-11-21
UA62017C2 (en) 2003-12-15
SK8442001A3 (en) 2001-12-03
CA2353854A1 (en) 2000-07-06
AU767512B2 (en) 2003-11-13
IL143676A0 (en) 2002-04-21
CZ20012374A3 (cs) 2001-09-12
AU1559100A (en) 2000-07-31
EP1140769A1 (de) 2001-10-10
WO2000039068A1 (de) 2000-07-06
KR20010099981A (ko) 2001-11-09
CN1332716A (zh) 2002-01-23
NO20013068D0 (no) 2001-06-20
NO20013068L (no) 2001-06-20
SK283694B6 (sk) 2003-12-02
PL348526A1 (en) 2002-06-03
JP2002533427A (ja) 2002-10-08
ES2194531T3 (es) 2003-11-16
NZ512248A (en) 2003-08-29

Similar Documents

Publication Publication Date Title
ID21654A (id) Proses derivatisasi selektif taksana
BR9713920A (pt) Processo para preparação e produção de acetato de vinila
ES2137504T3 (es) Procedimiento mejorado para la preparacion de polialuminosilicatos solubles en agua.
BR9911431A (pt) Processo para produção de uma solução aquosa de ácido monoéster peroxicarboxìlico
ES2159919T3 (es) Procedimiento para la preparacion de compuestos de tipo ceramidas.
BR9916648A (pt) Processo para preparar ésteres glioxìlicos ou seus hidratos
DE69509903D1 (de) Synthese von 4-alkoxy-n-acetylneuraminsäure
ES2058366T3 (es) Procedimiento para la sintesis en una etapa del metil ter-butil eter.
BR8104173A (pt) Processo para conversao catalisada por enzima de etanol em acetaldeido,processo para preparar complexos associados estaveis de acetaldeido em solucao,solucao estavel de acetaldeido,processo para converter etanol em acetaldeido na presenca de desidrogenase de alcool e um co-fator para o mesmo e aparelho utilizado no processo
ES2183586T3 (es) Procedimiento continuo para la preparacion de (s) -3- hidroxi- gamma- butirolactona opticamente pura.
BR0009518A (pt) Processo para a preparação de um éster do ácido 2-hidroxi-4-metiltiobutìrico
ES2171706T3 (es) Procedimiento para la obtencion de sales substituidas del acido 4,4&#39;-diaminoestilben-2,2&#39;-disulfonico.
BR9911646A (pt) Processo de preparação de aloìna a partir de uma substância que contém a aloés
BR0111403A (pt) Composições que contêm policarbonato
ES2104831T3 (es) Proceso quimico para la preparacion de trifluoracetaldehido.
HK1001416A1 (en) A composition, a chemiluminescent system and its use.
DE69608862D1 (de) Verfahren zur Herstellung einer optisch aktiven 2-Hydroxy-4-Arylbuttersäure oder deren Ester und Zwischenprodukt dafür
ES2105613T5 (es) Produccion de detergentes.
BR0005323A (pt) Processo para preparar sais de metal alcalino de ácido l-ascórbico
ES2160262T3 (es) Procedimiento para la obtencion de compuestos que contienen grupos hidroxi a partir de formiatos.
BR9809158A (pt) Processo para a preparação de 5&#39;- deóxi-5-fluorouridina
BR0010370A (pt) Processo de reações catalisadas por ácido
ES2090863T3 (es) Procedimiento para la preparacion de 2-oxi-tetrahidrofuranos.
ATE391717T1 (de) Verfahren zur herstellung von 5-benzyl-3- furfurylalkohol
EP1096004A3 (en) Pro-fragrance compounds

Legal Events

Date Code Title Description
B08F Application dismissed because of non-payment of annual fees [chapter 8.6 patent gazette]

Free format text: REFERENTE 9A. ANUIDADE.

B08K Patent lapsed as no evidence of payment of the annual fee has been furnished to inpi [chapter 8.11 patent gazette]

Free format text: REFERENTE AO DESPACHO 8.6 DE RPI 1999 DE 28/04/2009.