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2 283 830

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IPC

C07C67/343(2006-01-01)

C07C69/757(2006-01-01)

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Application

2005114639/04, 2005-05-13

(24)

Start date

2005-05-13

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Actual filing date

2005-05-13

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Published

2006-09-20

(72)

Inventor

Dzhemilev Usein MemetovichIbragimov Askhat GabdrakhmanovichKhafizova Lejla OsmanovnaMakhamatkhanova Alevtina LeonidovnaKunakova Rajkhana ValiullovnaUshakova Zoja Ivanovna

(73)

Holder

Institut Neftekhimii I Kataliza Ink Ran

METHOD FOR PRODUCTION OF 1-HYDROXY-2,3-[60]FULLEROCYCLOPENTANECARBOXYLIC ACID ETHYL ESTER Russian patent published in 2006 - IPC C07C67/343 C07C69/757

Abstract RU 2283830 C1

FIELD: organic chemistry.

SUBSTANCE: invention relates to method for production of 1-hydroxy-2,3-[60]fullerocyclopentanecarboxylic acid ethyl ester of formula 1 , wherein n = 1-2. Claimed method includes reaction of fullerene[60] (C60) with triethylaluminum (AlEt₃) in C60:AlEt₃ molar ratio of 1:(25-35) in presence of Cp₂ZrCl₂ as catalyst in amount of 15-25 mol.% based on C60 in argon atmosphere, in toluene medium under atmospheric pressure and at room temperature for 8 hours followed by addition to reaction mass at -15°C copper chloride (CuCl) catalyst in amount of 15-20 mol % based on C60 and oxalic acid diethyl ester (EtO₂C-CO₂Et) in equimolar amount in relation to AlEt₃. Further reaction mass is agitated at room temperature followed by hydrolysis of reaction mass.

EFFECT: method for production of 1-hydroxy-2,3-[60]fullerocyclopentanecarboxylic acid ethyl ester with high yield.

1 tbl, 1 ex

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RU 2 283 830 C1

Authors

Dzhemilev Usein Memetovich

Ibragimov Askhat Gabdrakhmanovich

Khafizova Lejla Osmanovna

Makhamatkhanova Alevtina Leonidovna

Kunakova Rajkhana Valiullovna

Ushakova Zoja Ivanovna

Dates

2006-09-20—Published

2005-05-13—Filed