DK0769497T3 - Hydroxymethylering af tocopheroler - Google Patents

Hydroxymethylering af tocopheroler

Info

Publication number
DK0769497T3
DK0769497T3 DK96116152T DK96116152T DK0769497T3 DK 0769497 T3 DK0769497 T3 DK 0769497T3 DK 96116152 T DK96116152 T DK 96116152T DK 96116152 T DK96116152 T DK 96116152T DK 0769497 T3 DK0769497 T3 DK 0769497T3
Authority
DK
Denmark
Prior art keywords
tocopherols
alpha
hydroxymethylation
derivative
azeotropic
Prior art date
Application number
DK96116152T
Other languages
English (en)
Inventor
Konrad Brueggemann
Juan Ramon Herguijuela
Thomas Netscher
Johann Riegl
Original Assignee
Hoffmann La Roche
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 Hoffmann La Roche filed Critical Hoffmann La Roche
Application granted granted Critical
Publication of DK0769497T3 publication Critical patent/DK0769497T3/da

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D311/00—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only hetero atom, condensed with other rings
    • C07D311/02—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only hetero atom, condensed with other rings ortho- or peri-condensed with carbocyclic rings or ring systems
    • C07D311/04—Benzo[b]pyrans, not hydrogenated in the carbocyclic ring
    • C07D311/58—Benzo[b]pyrans, not hydrogenated in the carbocyclic ring other than with oxygen or sulphur atoms in position 2 or 4
    • C07D311/70—Benzo[b]pyrans, not hydrogenated in the carbocyclic ring other than with oxygen or sulphur atoms in position 2 or 4 with two hydrocarbon radicals attached in position 2 and elements other than carbon and hydrogen in position 6
    • C07D311/72—3,4-Dihydro derivatives having in position 2 at least one methyl radical and in position 6 one oxygen atom, e.g. tocopherols
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/50—Improvements relating to the production of bulk chemicals
    • Y02P20/582—Recycling of unreacted starting or intermediate materials

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Pyrane Compounds (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
  • Catalysts (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
DK96116152T 1995-10-18 1996-10-09 Hydroxymethylering af tocopheroler DK0769497T3 (da)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH295195 1995-10-18

Publications (1)

Publication Number Publication Date
DK0769497T3 true DK0769497T3 (da) 2003-04-07

Family

ID=4245319

Family Applications (1)

Application Number Title Priority Date Filing Date
DK96116152T DK0769497T3 (da) 1995-10-18 1996-10-09 Hydroxymethylering af tocopheroler

Country Status (8)

Country Link
US (1) US5892058A (da)
EP (1) EP0769497B1 (da)
JP (1) JPH09124635A (da)
CN (1) CN1090626C (da)
AT (1) ATE229948T1 (da)
DE (1) DE59609995D1 (da)
DK (1) DK0769497T3 (da)
ES (1) ES2187603T3 (da)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5932748A (en) * 1997-06-06 1999-08-03 Roche Vitamins Inc. Process for permethylating non-α-tocopherols to produce α-tocopherol
US6429320B1 (en) 2000-08-04 2002-08-06 Cognis Corporation Processes for the purification of tocopherol and/or sterol compounds and compositions containing orthoborate ester mixtures
DE10346037A1 (de) * 2003-10-02 2005-04-28 Basf Ag Herstellung von alpha-Tocopherol aus nicht alpha-Tocopherole enthaltendem Rohmaterial
US10047065B2 (en) 2014-12-17 2018-08-14 Dsm Ip Assets B.V. Formation of chromanes based on intermolecular reaction of alkynes with dimethylfuran in the presence of gold(I) complexes

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1031495A (en) * 1964-01-24 1966-06-02 Eisai Co Ltd Process for producing ª‡-tocopherol having a high vitamin e activity
US3819657A (en) * 1972-10-20 1974-06-25 Gen Mills Chem Inc Methylation of tocopherols
JPS516761A (ja) * 1974-07-08 1976-01-20 Suwa Seikosha Kk Udedokei
US4464380A (en) * 1983-05-25 1984-08-07 Pfizer Inc. Imidazolidinedione derivatives
EP0178400A1 (en) * 1984-09-25 1986-04-23 HENKEL CORPORATION (a Delaware corp.) Methylation of non-alpha-tocopherol compounds
US4617406A (en) * 1985-02-11 1986-10-14 Henkel Corporation Purification of tocopherols
JPH086843B2 (ja) * 1991-10-15 1996-01-29 エスエムシー株式会社 無発塵ゲートバルブ

Also Published As

Publication number Publication date
EP0769497A1 (de) 1997-04-23
ATE229948T1 (de) 2003-01-15
US5892058A (en) 1999-04-06
ES2187603T3 (es) 2003-06-16
JPH09124635A (ja) 1997-05-13
CN1090626C (zh) 2002-09-11
EP0769497B1 (de) 2002-12-18
CN1151988A (zh) 1997-06-18
DE59609995D1 (de) 2003-01-30

Similar Documents

Publication Publication Date Title
BR9812853A (pt) Sistema catalizador, processo para preparar uma poliolefina, e, uso de um sistema catalisador
BR9810857A (pt) Composto quìmico, processos para a preparação do mesmo, e para a preparação de uma poliolefina, sistema catalisador, e, uso do mesmo
AUPO903897A0 (en) Organic boronic acid derivatives
BR9713920A (pt) Processo para preparação e produção de acetato de vinila
FI943345A0 (fi) Organo-aluminoksituotteet ja niiden käyttö
BR9814410A (pt) Sistema catalisador suportado, uso do mesmo, e, processos para preparar um polìmero de olefina e, um sistema catalisador suportado.
MX222918B (es) Procedimiento para la reaccion de un compuesto organico con un hidroperoxido.
ES2172154T3 (es) Procedimiento para la oxidacion de un compuesto organico que presenta al menos un doble enlace c-c.
NO306553B1 (no) Metallocener, deres anvendelse som katalysatorer, samt katalysatorsystem omfattende forbindelsene
BR9709477A (pt) Processo para produção de acetato de vinila.
ES2099956T3 (es) Uso de zeolitas en la conversion de compuestos oxigenados en hidrocarburos.
CA2207660A1 (en) Screw piercable structural support for a planar substrate
DK0970099T3 (da) Fremgangsmåde til fremstilling af erythromycin A-oxim
DE59811659D1 (de) Verfahren zur Herstellung eines Metallocen-Katalysatorsystems
ES2174444T3 (es) Procedimiento monoetapa para la obtencion de mono-eteres de glicol a partir de olefinas.
ATE170865T1 (de) Festfase bei oligonukleotidsynthese
BR9809226A (pt) Processo de epoxidação usando-se um composto de peroxotungstato estabilizado com fosfato como catalisador
ES2058366T3 (es) Procedimiento para la sintesis en una etapa del metil ter-butil eter.
BR8007800A (pt) Processo para conversao homogenea de metanol em acetaldeido,etanol ou suas misturas
ATE229948T1 (de) Hydroxymethylierung von tocopherolen
BR9812534A (pt) Processo de leito fixo para conversão de metanol com catalisador de peneira molecular de fosfato de sìlico alumina
DE69600988D1 (de) Trägerkatalysator für die Olefinpolymerisation
MX9301022A (es) Mejoras en una solucion catalitica.
BR8105592A (pt) Processo para produzir etileno glicol pela reacao de metanol,um peroxido organico e formaldeido
AR005342A1 (es) Metodo para la manufactura de felodipina