ATE73792T1 - Annaeherung zur herstellung von natuerlicher vitamin e verwendender asymetrischer synthese. - Google Patents

Annaeherung zur herstellung von natuerlicher vitamin e verwendender asymetrischer synthese.

Info

Publication number
ATE73792T1
ATE73792T1 AT88120449T AT88120449T ATE73792T1 AT E73792 T1 ATE73792 T1 AT E73792T1 AT 88120449 T AT88120449 T AT 88120449T AT 88120449 T AT88120449 T AT 88120449T AT E73792 T1 ATE73792 T1 AT E73792T1
Authority
AT
Austria
Prior art keywords
synthesis
approach
asynthetic
manufacture
natural vitamin
Prior art date
Application number
AT88120449T
Other languages
English (en)
Inventor
Ka-Kong Chan
Gabriel G Saucy
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 ATE73792T1 publication Critical patent/ATE73792T1/de

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
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C46/00—Preparation of quinones
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C46/00—Preparation of quinones
    • C07C46/02—Preparation of quinones by oxidation giving rise to quinoid structures
    • C07C46/06—Preparation of quinones by oxidation giving rise to quinoid structures of at least one hydroxy group on a six-membered aromatic ring
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C46/00—Preparation of quinones
    • C07C46/10—Separation; Purification; Stabilisation; Use of additives
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C50/00—Quinones
    • C07C50/26—Quinones containing groups having oxygen atoms singly bound to carbon atoms
    • C07C50/28—Quinones containing groups having oxygen atoms singly bound to carbon atoms with monocyclic quinoid structure
AT88120449T 1987-12-18 1988-12-07 Annaeherung zur herstellung von natuerlicher vitamin e verwendender asymetrischer synthese. ATE73792T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/135,128 US4831185A (en) 1987-12-18 1987-12-18 Asymmetric synthesis of natural vitamin E
EP88120449A EP0320777B1 (de) 1987-12-18 1988-12-07 Annäherung zur Herstellung von natürlicher Vitamin E verwendender asymetrischer Synthese

Publications (1)

Publication Number Publication Date
ATE73792T1 true ATE73792T1 (de) 1992-04-15

Family

ID=22466684

Family Applications (1)

Application Number Title Priority Date Filing Date
AT88120449T ATE73792T1 (de) 1987-12-18 1988-12-07 Annaeherung zur herstellung von natuerlicher vitamin e verwendender asymetrischer synthese.

Country Status (6)

Country Link
US (1) US4831185A (de)
EP (1) EP0320777B1 (de)
JP (1) JPH02282A (de)
AT (1) ATE73792T1 (de)
DE (1) DE3869361D1 (de)
DK (1) DK702288A (de)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4855085A (en) * 1987-12-18 1989-08-08 Hoffmann-La Roche Inc. Asymmetric synthesis of natural vitamin E
US4914217A (en) * 1987-12-18 1990-04-03 Hoffmann-La Roche Inc. Asymmetric synthesis of natural vitamin E
US5015661A (en) * 1988-08-09 1991-05-14 Hoffmann-La Roche Inc. Chromanes and their pharmaceutical compositions and methods
EP0578499B1 (de) * 1992-07-10 1999-12-01 Fujitsu Limited Laserdiodenmodul
WO2006116471A2 (en) * 2005-04-25 2006-11-02 Monsanto Technology Llc Altering the crystal size distribution of n-(phosphonomethyl) iminodiacetic acid for improved filtration and product quality

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4626276A (en) * 1984-06-11 1986-12-02 Chevron Research Company Herbicidal trans-2-[(3-chloroallyloxyimino)alkyl]-5-(substitutedsulfinylalkyl)-cyclohexane-1,3-diones and derivatives thereof
JPH01231005A (ja) * 1988-03-11 1989-09-14 Mitsui Toatsu Chem Inc ポリイミド樹脂フィルター

Also Published As

Publication number Publication date
EP0320777A3 (en) 1990-01-03
JPH02282A (ja) 1990-01-05
DE3869361D1 (de) 1992-04-23
US4831185A (en) 1989-05-16
EP0320777B1 (de) 1992-03-18
DK702288A (da) 1989-06-19
EP0320777A2 (de) 1989-06-21
DK702288D0 (da) 1988-12-16

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