Synthesis of cyclopentadiene derivatives
US7253292B2 · kind B2 · utility
3Cited by
0References
18Claims
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Key dates
| Filing date | May 8, 2002 |
| Grant date | Aug 7, 2007 |
| Priority date | — |
| Expiry date | Jul 12, 2023 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D495/04
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.