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2 313 525

(13)

(51)

IPC

C07D471/04(2006-01-01)

(21) (22)

Application

2006115384/04, 2006-05-04

(24)

Start date

2006-05-04

(22)

Actual filing date

2006-05-04

(45)

Published

2007-12-27

(72)

Inventor

Bulgakov Ramil' GarifovichKuleshov Sergej PavlovichMakhmutov Ajnur RashitovichDzhemilev Usein Memetovich

(73)

Holder

Institut Neftekhimii I Kataliza Ran

METHOD FOR PREPARING 2,3-DIALKYL-1,10-PHENANTHROLINES Russian patent published in 2007 - IPC C07D471/04

Abstract RU 2313525 C1

FIELD: organic chemistry and synthesis.

SUBSTANCE: invention relates to a method for synthesis of 2,3-dialkyl-1,10-phenanthrolines. Method involves interaction of 8-aminoquinoline with aliphatic aldehydes in the presence of terbium trichloride TbCl₃ x 6 H₂O or terbium nitrate Tb(NO₃)₃ x 6 H₂O as a crystal hydrate catalyst in the molar ratio 8-aminoquinaline : R-CH₂CHO : Tb = 45:100:1.2, respectively, under atmosphere pressure, in the temperature range 20-100⁰C for 5-24 h in dimethylformamide (DMFA) medium as a solvent. Phenanthroline and its derivatives are used in analytical chemistry as indicators in oxidative-reductive reactions.

EFFECT: improved method of synthesis.

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RU 2 313 525 C1

Authors

Bulgakov Ramil' Garifovich

Kuleshov Sergej Pavlovich

Makhmutov Ajnur Rashitovich

Dzhemilev Usein Memetovich

Dates

2007-12-27—Published

2006-05-04—Filed