AR010938A1 - Procedimiento para preparar acido l-ascorbico. - Google Patents

Procedimiento para preparar acido l-ascorbico.

Info

Publication number
AR010938A1
AR010938A1 ARP980103913A ARP980103913A AR010938A1 AR 010938 A1 AR010938 A1 AR 010938A1 AR P980103913 A ARP980103913 A AR P980103913A AR P980103913 A ARP980103913 A AR P980103913A AR 010938 A1 AR010938 A1 AR 010938A1
Authority
AR
Argentina
Prior art keywords
acid
ascorbic acid
prepare
procedure
keto
Prior art date
Application number
ARP980103913A
Other languages
English (en)
Spanish (es)
Original Assignee
Merck Patent 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
Application filed by Merck Patent Gmbh filed Critical Merck Patent Gmbh
Publication of AR010938A1 publication Critical patent/AR010938A1/es

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D307/00—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom
    • C07D307/02—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings
    • C07D307/34—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members
    • C07D307/56—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
    • C07D307/62—Three oxygen atoms, e.g. ascorbic acid
ARP980103913A 1997-08-07 1998-08-07 Procedimiento para preparar acido l-ascorbico. AR010938A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19734086A DE19734086C1 (de) 1997-08-07 1997-08-07 Verfahren zur Herstellung von L-Ascorbinsäure

Publications (1)

Publication Number Publication Date
AR010938A1 true AR010938A1 (es) 2000-07-12

Family

ID=7838185

Family Applications (1)

Application Number Title Priority Date Filing Date
ARP980103913A AR010938A1 (es) 1997-08-07 1998-08-07 Procedimiento para preparar acido l-ascorbico.

Country Status (12)

Country Link
EP (1) EP1001952A2 (de)
JP (1) JP2001512722A (de)
KR (1) KR20010022595A (de)
CN (1) CN1265655A (de)
AR (1) AR010938A1 (de)
AU (1) AU9156298A (de)
BR (1) BR9811855A (de)
CA (1) CA2299364A1 (de)
CO (1) CO4770883A1 (de)
DE (1) DE19734086C1 (de)
ID (1) ID25547A (de)
WO (1) WO1999007691A2 (de)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19904821C1 (de) * 1999-02-05 2000-07-06 Merck Patent Gmbh Verfahren zur Herstellung von L-Ascobinsäure
DE19919203A1 (de) 1999-04-28 2000-11-02 Basf Ag Verfahren zur Herstellung von L-Ascorbinsäure
DE19954511A1 (de) 1999-11-12 2001-05-17 Basf Ag Verfahren zur Herstellung von Alkalisalzen der L-Ascorbinsäure
DE10022518A1 (de) 2000-05-10 2001-11-15 Basf Ag Verfahren zur Herstellung von L-Ascorbinsäure durch Lactonisierung von 2-Keto-L-gulonsäure oder 2-Keto-L-gulonsäureestern
WO2002051826A1 (en) 2000-12-22 2002-07-04 Eastman Chemical Company Continuous process for producing l-ascorbic acid
US6864376B2 (en) 2000-12-22 2005-03-08 Eastman Chemical Company Process for producing ascorbic acid
IL158299A0 (en) * 2001-04-10 2004-05-12 Danisco Usa Inc Processes for preparing a carbohydrate polymer
US6740762B2 (en) 2001-08-24 2004-05-25 Eastman Chemical Company Process for ascorbic acids using alkaline earth silicate catalysts
US6716997B1 (en) 2001-10-09 2004-04-06 Eastman Chemical Company Systems and methods for generation of ascorbic acid with reduced color
CN111087373A (zh) * 2019-12-29 2020-05-01 安徽丰原发酵技术工程研究有限公司 一种酸法制备维生素c的方法
CN111018815A (zh) * 2019-12-29 2020-04-17 安徽丰原发酵技术工程研究有限公司 一种通过溶剂萃取提高盐酸浓度制备维生素c的方法
CN114369075B (zh) * 2022-02-14 2023-09-29 河北乐开节能科技股份有限公司 利用2-酮基-l-古龙酸的水溶液一步制备vc结晶的方法

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2462251A (en) * 1945-05-16 1949-02-22 Merck & Co Inc Process for preparing ascorbic acids
DD141832A1 (de) * 1978-10-31 1980-05-21 Joachim Schmidt Verfahren und vorrichtung zur herstellung von l-ascorbinsaeure
CN86105960A (zh) * 1985-08-09 1987-05-13 鲁布里佐尔公司 在基本无水条件下从2-酮-l-古洛糖酸制备l-抗坏血酸
DE3819045C2 (de) * 1987-06-08 1997-06-19 Takeda Chemical Industries Ltd Herstellung von L-Ascorbinsäure

Also Published As

Publication number Publication date
BR9811855A (pt) 2000-08-15
ID25547A (id) 2000-10-12
WO1999007691A3 (de) 1999-04-08
WO1999007691A2 (de) 1999-02-18
CO4770883A1 (es) 1999-04-30
AU9156298A (en) 1999-03-01
CN1265655A (zh) 2000-09-06
KR20010022595A (ko) 2001-03-26
DE19734086C1 (de) 1998-08-13
EP1001952A2 (de) 2000-05-24
JP2001512722A (ja) 2001-08-28
CA2299364A1 (en) 1999-02-18

Similar Documents

Publication Publication Date Title
AR010938A1 (es) Procedimiento para preparar acido l-ascorbico.
ES2115017T3 (es) Semi sintesis de derivados de taxano mediante el uso de alcoxidos de metales.
GT199900055A (es) Nuevas dihidropirimidinas2 heterocìclicamente sustituidas.
BR0111981A (pt) herbicidas de piridina substituìda
ES2045180T3 (es) Nuevo procedimiento para la obtencion de 4-aciloxi-3-hidroxietil-azetidinonas.
AU2003218707A1 (en) Segment of a sensor-supporting element for a scraper-type device
IT7922047A0 (it) Impianto per la produzione di gascompresso, rispettivamente di energia meccanica.
ES2056248T3 (es) Mezclas liquidas de 2h-benzotriazoles substituidos.
ES2074431T3 (es) Un procedimiento para la sintesis de amicacina.
BRPI0515186A (pt) derivados de alquilideno-tetrahidronaftaleno, processo para a sua produção e seu uso como antiinflamatório
ES2049927T3 (es) Trituradora giratoria.
IT1164106B (it) Procedimento per la produzione di 14,15-derivati metilenici della serie d'estrano
ES2075234T3 (es) Iminotiazolinas, su produccion y uso como herbicidas, y productos intermedios para su produccion.
ES2039218T3 (es) Procedimiento para preparar 1-hidroxi-2-piridonas.
SE7810207L (sv) Derivat av esterdiolalkoxylater och kompositioner innehallande dessa
PT1087759E (pt) Processo para a producao de um laminado compreendendo varias camadas individuais
ES2178121T3 (es) Derivado de 2-fenil-2-(2-piperidiniliden) acetato y un procedimiento para fabricar el mismo, y procedimiento para fabricar un derivado de 2-fenil-2-(2-piperidinil) acetato opticamente activo para la hidrogenacion asimetrica.
IT1318678B1 (it) Procedimento per la preparazione di derivati della baccatina iii.
UY26250A1 (es) Sulfonamidas sustituidas con naftilo
ES2126544T1 (es) Derivados del oxido de estireno en composiciones cationicamente curables.
AR021694A1 (es) Retinamidas de acido 7-aril-6-(z)heptatrienoico
ES2078501T3 (es) Metodo para el tratamiento de la trombocitopenia y composiciones farmaceuticas utiles para el mismo.
DK1035275T3 (da) Afskærmningsindretning
ES2059871T3 (es) Procedimiento para la obtencion de acidos benzoicos fluorados.
ES2055833T3 (es) Procedimiento para la obtencion de 4-metilentetrahidropirano.