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Title:
SYNTHESIS OF CYCLOPENTADIENE DERIVATIVES
Document Type and Number:
WIPO Patent Application WO2002092564
Kind Code:
A3
Abstract:
A process for preparing cyclopentadiene derivatives comprising the steps of: a) coupling a five membered heterocycle ring with a five or six membered heterocycle ring; b) reacting the obtained compound with a carbonilating system: c) reducing the obtained compound.

Inventors:
NIFANT EV ILYA E (RU)
KASHULIN IGOR A (RU)
IVCHENKO PAVEL V (RU)
KLUSENER PETER A A (NL)
KORNDORFFER FRANS M (NL)
DE KLOE KEES P (NL)
RIJSEMUS JOS J H (NL)
Application Number:
PCT/EP2002/005094
Publication Date:
April 17, 2003
Filing Date:
May 08, 2002
Export Citation:
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Assignee:
BASELL POLYOLEFINE GMBH (DE)
NIFANT EV ILYA E (RU)
KASHULIN IGOR A (RU)
IVCHENKO PAVEL V (RU)
KLUSENER PETER A A (NL)
KORNDORFFER FRANS M (NL)
DE KLOE KEES P (NL)
RIJSEMUS JOS J H (NL)
International Classes:
C07B61/00; C07D209/94; C07D307/93; C07D333/78; C07D493/04; C07D495/04; (IPC1-7): C07D209/94; C07D333/78; C07D493/04; C07D495/04
Domestic Patent References:
WO1999024446A11999-05-20
Other References:
ALLERT WIERSEMA AND SALO GRONOWITZ: "Thiophene analogues of fluorene III. On the synthesis of methylated cyclopentadithiophenes", ACTA CHEMICA SCANDINAVICA., vol. 24, no. 7, - 1970, MUNKSGAARD, COPENHAGEN., DK, pages 2593 - 2611, XP002226315, ISSN: 0904-213X
S.M. HUMAYUN KABIR ET AL.: "New syntheses of tricyclic thiophenes and cyclic tetrathiophenes using transition-metal-catalyzed cyclization", HETEROCYCLES., vol. 52, no. 2, - 2000, ELSEVIER SCIENCE PUBLISHERS B.V. AMSTERDAM., NL, pages 761 - 774, XP002226316, ISSN: 0385-5414
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