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2 354 639

(13)

(51)

IPC

C07C2/42(2006-01-01)

C07C15/24(2006-01-01)

B01J29/40(2006-01-01)

(21) (22)

Application

2007133955/04, 2007-09-11

(24)

Start date

2007-09-11

(22)

Actual filing date

2007-09-11

(45)

Published

2009-05-10

(72)

Inventor

Dzhemilev Usein MemetovichKutepov Boris IvanovichGrigor'Eva Nellja GennadievnaGaljautdinova Regina RimovnaBubennov Sergej Vladimirovich

(73)

Holder

Institut Neftekhimii I Kataliza Ran

METHOD FOR MAKING CYCLIC STYRENE DIMERS Russian patent published in 2009 - IPC C07C2/42 C07C15/24 B01J29/40

Abstract RU 2354639 C1

FIELD: chemistry.

SUBSTANCE: invention refers to method for making cyclic styrene dimers (cis- and trans-1-methyl-3-phenylindan) by oligomerising styrene with N-zeolite type Beta added in the solvent, differing that amount of Beta zeolite is 18-25 wt % with reaction performed in chlorbenzene in ratio styrene:chlorbenzene=1:4 (voi.) and temperature 115-130°C.

EFFECT: simplified process for making cyclic styrene dimers.

1 cl, 5 ex, 1 tbl

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RU 2 354 639 C1

Authors

Dzhemilev Usein Memetovich

Kutepov Boris Ivanovich

Grigor'Eva Nellja Gennadievna

Galjautdinova Regina Rimovna

Bubennov Sergej Vladimirovich

Dates

2009-05-10—Published

2007-09-11—Filed