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2 117 006

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C1

(51)

IPC

(21) (22)

Application

94025041/04, 1994-07-04

(22)

Actual filing date

1994-07-04

(45)

Published

1998-08-10

(72)

Inventor

Dzhemilev U.M.Selimov F.A.Khusnutdinov R.A.Ptashko O.A.

(73)

Holder

Institut Neftekhimii I Kataliza An Respubliki Bashkortostan

METHOD OF SYNTHESIS OF 1,10-, 1,7- AND 4,7-PHENANTHROLINES Russian patent published in 1998 - IPC

Abstract RU 2117006 C1

FIELD: organic chemistry and technology. SUBSTANCE: invention proposes a method of synthesis of 1,10-, 1,7- and 4,7-phenanthrolines by condensation of ortho-, meta- and para-phenylenediamines with glycerol in solution of 70% sulfuric acid in the presence of catalyst. Catalyst consists of iodine-containing compound (KJ, ) and cerium (IV) sulfate at molar ratio 0.005-0.005-0.01, at 180-190 C for 8-10 h followed by reaction mass passing through column filled with aluminium oxide. The yield of process is 75-80%. Synthesized compounds are used in analytical and organic chemistry as indicators of redox reactions. EFFECT: improved method of synthesis, increased yield of products. 1 tbl

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RU 2 117 006 C1

Authors

Dzhemilev U.M.

Selimov F.A.

Khusnutdinov R.A.

Ptashko O.A.

Dates

1998-08-10—Published

1994-07-04—Filed

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