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GB1092703A - Process of isolating and refining tocopherol homologues - Google Patents

Process of isolating and refining tocopherol homologues

Info

Publication number
GB1092703A
GB1092703A GB1510266A GB1510266A GB1092703A GB 1092703 A GB1092703 A GB 1092703A GB 1510266 A GB1510266 A GB 1510266A GB 1510266 A GB1510266 A GB 1510266A GB 1092703 A GB1092703 A GB 1092703A
Authority
GB
United Kingdom
Prior art keywords
tocopherol
fraction containing
homologues
refining
isolating
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
GB1510266A
Inventor
Shizumasa Kijima
Tetsuy Nakamura
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Eisai Co Ltd
Original Assignee
Eisai Co Ltd
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 Eisai Co Ltd filed Critical Eisai Co Ltd
Priority to GB1510266A priority Critical patent/GB1092703A/en
Publication of GB1092703A publication Critical patent/GB1092703A/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D311/00Heterocyclic compounds containing six-membered rings having one oxygen atom as the only hetero atom, condensed with other rings
    • C07D311/02Heterocyclic 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
    • C07D311/04Benzo[b]pyrans, not hydrogenated in the carbocyclic ring
    • C07D311/58Benzo[b]pyrans, not hydrogenated in the carbocyclic ring other than with oxygen or sulphur atoms in position 2 or 4
    • C07D311/70Benzo[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
    • C07D311/723,4-Dihydro derivatives having in position 2 at least one methyl radical and in position 6 one oxygen atom, e.g. tocopherols

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Pyrane Compounds (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)

Abstract

Tocopherol homologues are separated by passing a solution of a tocopherol homologue mixture in methanol or allyl alcohol or a mixture thereof, through a column of a strongly basic anion exchange resin, then eluting with further portions of the solvent to obtain a first fraction containing any a -tocopherol present and a second fraction containing any b -tocopherol and g -tocopherol present, and finally eluting with a solution of an acid (e.g. acetic acid) in the solvent to obtain a fraction containing any d -tocopherol present. Examples are given in which the tocopherol homologues are separated from soybean oil.
GB1510266A 1966-04-05 1966-04-05 Process of isolating and refining tocopherol homologues Expired GB1092703A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1510266A GB1092703A (en) 1966-04-05 1966-04-05 Process of isolating and refining tocopherol homologues

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1510266A GB1092703A (en) 1966-04-05 1966-04-05 Process of isolating and refining tocopherol homologues

Publications (1)

Publication Number Publication Date
GB1092703A true GB1092703A (en) 1967-11-29

Family

ID=10053080

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1510266A Expired GB1092703A (en) 1966-04-05 1966-04-05 Process of isolating and refining tocopherol homologues

Country Status (1)

Country Link
GB (1) GB1092703A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101475557B (en) * 2009-02-10 2011-05-04 中粮集团有限公司 Preparation of mixing vitamin E
CN103012352A (en) * 2012-09-03 2013-04-03 宁波大红鹰生物工程股份有限公司 Separation and purification method for mixed tocopherols

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101475557B (en) * 2009-02-10 2011-05-04 中粮集团有限公司 Preparation of mixing vitamin E
CN103012352A (en) * 2012-09-03 2013-04-03 宁波大红鹰生物工程股份有限公司 Separation and purification method for mixed tocopherols
CN103012352B (en) * 2012-09-03 2015-04-22 宁波大红鹰生物工程股份有限公司 Separation and purification method for mixed tocopherols

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