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2 186 064

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C2

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IPC

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Application

2000117319/04, 2000-06-28

(24)

Start date

2000-06-28

(22)

Actual filing date

2000-06-28

(45)

Published

2002-07-27

(72)

Inventor

Spivak A.Ju.Odinokov V.N.Emel'Janova G.A.Makhamatkhanov R.A.

(73)

Holder

Institut Neftekhimii I Kataliza An Rb I Unts Ran

METHOD OF SYNTHESIS OF ALPHA-TOCOPHEROL (VITAMIN E) Russian patent published in 2002 - IPC

Abstract RU 2186064 C2

FIELD: vitamins, chemical technology. SUBSTANCE: invention relates to the improved method of synthesis of α-tocopherol (vitamin E) that is a lipophilic antioxidant of mammal biological membranes. α-Tocopherol is synthesized by condensation of trimethylhydroquinone with racemic isophytol under condition of heterogeneous catalysis in the presence of zeolite-containing alumosilicate "Zeokar-10". The process is carried out at boiling in hydrocarbon or aromatic solvents (toluene, heptane, nonane) in the mole ratio trimethylhydroquinone : isophytol = 1:2 for 5-10 h. EFFECT: enhanced quantitative yield of end product due to use of "Zeokar-10". 4 ex

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RU 2 186 064 C2

Authors

Spivak A.Ju.

Odinokov V.N.

Emel'Janova G.A.

Makhamatkhanov R.A.

Dates

2002-07-27—Published

2000-06-28—Filed

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