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2 316 547

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(51)

IPC

C07D213/26(2006-01-01)

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Application

2006115387/04, 2006-05-04

(24)

Start date

2006-05-04

(22)

Actual filing date

2006-05-04

(45)

Published

2008-02-10

(72)

Inventor

Dzhemiev Usein MemetovichKhusnutdinov Ravil IsmagiloichBajguzina Al'Fija RuslanovnaSmirnov Anton AleksandrovichMukminov Rinat Rifkhatovich

(73)

Holder

Institut Neftekhimii I Kataliza Ran

METHOD FOR PREPARING 3-DICHLOROMETHYLPYRIDINE Russian patent published in 2008 - IPC C07D213/26

Abstract RU 2316547 C1

FIELD: organic chemistry, chemical technology.

SUBSTANCE: invention relates to a method for synthesis of 3-dichloromethylpyridine. Method involves interaction of pyridine with carbon tetrachloride and methanol in the presence of ferrous (II) bromide as a catalyst at temperature 140^°C for 6 h in the mole ratio [FeBr₂]:[pyridine]:[CCl₄]:[methanol] = 1:100:200:200, respectively. The yield of 3-dichloromethylpyridine is 35%, selectivity of reaction is 95-100%, and conversion of pyridine is 36-40%.

EFFECT: improved method of synthesis.

1 cl, 1 ex

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RU 2 316 547 C1

Authors

Dzhemiev Usein Memetovich

Khusnutdinov Ravil Ismagiloich

Bajguzina Al'Fija Ruslanovna

Smirnov Anton Aleksandrovich

Mukminov Rinat Rifkhatovich

Dates

2008-02-10—Published

2006-05-04—Filed