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1. WO2000040528 - PENTAFULVENE SYNTHESIS

Publication Number WO/2000/040528
Publication Date 13.07.2000
International Application No. PCT/US2000/000027
International Filing Date 03.01.2000
Chapter 2 Demand Filed 10.07.2000
IPC
C07C 13/15 2006.01
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
CACYCLIC OR CARBOCYCLIC COMPOUNDS
13Cyclic hydrocarbons containing rings other than, or in addition to, six-membered aromatic rings
02Monocyclic hydrocarbons or acyclic hydrocarbon derivatives thereof
08with a five-membered ring
15with a cyclopentadiene ring
CPC
C07C 13/15
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
CACYCLIC OR CARBOCYCLIC COMPOUNDS
13Cyclic hydrocarbons containing rings other than, or in addition to, six-membered aromatic rings
02Monocyclic hydrocarbons or acyclic hydrocarbon derivatives thereof
08with a five-membered ring
15with a cyclopentadiene ring
C07C 2601/10
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
CACYCLIC OR CARBOCYCLIC COMPOUNDS
2601Systems containing only non-condensed rings
06with a five-membered ring
10the ring being unsaturated
Applicants
  • UNIVATION TECHNOLOGIES, LLC [US/US]; Suite 1950 5555 San Felipe Houston, TX 77056, US
Inventors
  • CROWTHER, Donna, J.; US
  • ZAMORA, Jorge, L.; US
Agents
  • SHER, Jaimes ; Univation Technologies, LLC Suite 1950 5555 San Felipe Houston, TX 77056, US
Priority Data
09/226,40406.01.1999US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) PENTAFULVENE SYNTHESIS
(FR) SYNTHESE DE PENTAFULVENE
Abstract
(EN)
This invention relates to a method to produce pentafulvenes comprising combining a partially substituted cyclopentadiene with a carbonyl containing compound and lithium or an alkyl lithium, wherein the partially substitued cyclopentadiene is represented by formula (I): wherein the R1 to R5 groups are independently hydrogen or a C1 to C100 group, provided at least one R group is hydrogen but not more than three R groups are hydrogen.
(FR)
L'invention concerne un procédé de production de pentafulvènes consistant à combiner un cyclopentadiène partiellement substitué avec un composé carbonylé et du lithium ou un alkyle-lithium. Le cyclopentadiène partiellement substitué est représenté par la formule (I) dans laquelle les groupes R1 à R5 sont indépendamment les uns des autres l'hydrogène ou un groupe C1 à C100, à condition qu'au minimum un groupe R et au maximum trois groupes R soient l'hydrogène.
Also published as
Latest bibliographic data on file with the International Bureau