The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 07, 2007
Filed:
May. 08, 2002
Ilya E. Nifant'ev, Moscow, RU;
Igor a Kashulin, Moscow, RU;
Pavel V. Ivchenko, Moscow, RU;
Peter A. A. Klusener, Utrecht, NL;
Frans M. Kornorffer, Katvijk aan zee, NL;
Kees P. DE Kloe, Vlaardingen, NL;
Jos J. H. Rijsemus, Harderwijk, NL;
Ilya E. Nifant'ev, Moscow, RU;
Igor A Kashulin, Moscow, RU;
Pavel V. Ivchenko, Moscow, RU;
Peter A. A. Klusener, Utrecht, NL;
Frans M. Kornorffer, Katvijk aan zee, NL;
Kees P. De Kloe, Vlaardingen, NL;
Jos J. H. Rijsemus, Harderwijk, NL;
Basell Polyolefine GmbH, Wesseling, DE;
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.