Alpha-Alkylidenecyclopentanones by Alpha-Alkylidation of Methyl 2-Oxocyclopentanecarboxylate

Lade...
Vorschaubild
Dateien
Zu diesem Dokument gibt es keine Dateien.
Datum
1994
Autor:innen
Arnecke, Ralf
Köhler, Thomas
Herausgeber:innen
Kontakt
ISSN der Zeitschrift
Electronic ISSN
ISBN
Bibliografische Daten
Verlag
Schriftenreihe
Auflagebezeichnung
ArXiv-ID
Internationale Patentnummer
Angaben zur Forschungsförderung
Projekt
Open Access-Veröffentlichung
Open Access Green
Core Facility der Universität Konstanz
Gesperrt bis
Titel in einer weiteren Sprache
Forschungsvorhaben
Organisationseinheiten
Zeitschriftenheft
Publikationstyp
Zeitschriftenartikel
Publikationsstatus
Published
Erschienen in
Liebigs Annalen der Chemie. 1994, 1994(9), pp. 891-894. ISSN 0170-2041. eISSN 1099-0690. Available under: doi: 10.1002/jlac.199419940908
Zusammenfassung

An α-alkylidation of cyclopentanone was achieved in two reaction steps in an overall yield of 20 to 79% via a zinc chloride-catalyzed thioalkylation of the zinc enolate of methyl 2-oxocyclopentanecarboxylate (3) and subsequent saponification/desulfurization of the β-(phenylthio) ketone intermediates 5. For the saponificatioddesuiurization step DABCO proved to be the reagent of choice and superior to the use of alkali or magnesium halides.

Zusammenfassung in einer weiteren Sprache
Fachgebiet (DDC)
540 Chemie
Schlagwörter
Zinc enolates, thioalkylation of / Cyclopentanones, Alpha-alkylidene
Konferenz
Rezension
undefined / . - undefined, undefined
Zitieren
ISO 690ARNECKE, Ralf, Ulrich GROTH, Thomas KÖHLER, 1994. Alpha-Alkylidenecyclopentanones by Alpha-Alkylidation of Methyl 2-Oxocyclopentanecarboxylate. In: Liebigs Annalen der Chemie. 1994, 1994(9), pp. 891-894. ISSN 0170-2041. eISSN 1099-0690. Available under: doi: 10.1002/jlac.199419940908
BibTex
@article{Arnecke1994Alpha-10040,
  year={1994},
  doi={10.1002/jlac.199419940908},
  title={Alpha-Alkylidenecyclopentanones by Alpha-Alkylidation of Methyl 2-Oxocyclopentanecarboxylate},
  number={9},
  volume={1994},
  issn={0170-2041},
  journal={Liebigs Annalen der Chemie},
  pages={891--894},
  author={Arnecke, Ralf and Groth, Ulrich and Köhler, Thomas}
}
RDF
<rdf:RDF
    xmlns:dcterms="http://purl.org/dc/terms/"
    xmlns:dc="http://purl.org/dc/elements/1.1/"
    xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
    xmlns:bibo="http://purl.org/ontology/bibo/"
    xmlns:dspace="http://digital-repositories.org/ontologies/dspace/0.1.0#"
    xmlns:foaf="http://xmlns.com/foaf/0.1/"
    xmlns:void="http://rdfs.org/ns/void#"
    xmlns:xsd="http://www.w3.org/2001/XMLSchema#" > 
  <rdf:Description rdf:about="https://kops.uni-konstanz.de/server/rdf/resource/123456789/10040">
    <dspace:hasBitstream rdf:resource="https://kops.uni-konstanz.de/bitstream/123456789/10040/1/Alpha_Alkylidenecyclopentanones_by_.pdf"/>
    <dcterms:isPartOf rdf:resource="https://kops.uni-konstanz.de/server/rdf/resource/123456789/29"/>
    <dc:date rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2011-03-24T18:16:10Z</dc:date>
    <void:sparqlEndpoint rdf:resource="http://localhost/fuseki/dspace/sparql"/>
    <dc:contributor>Groth, Ulrich</dc:contributor>
    <foaf:homepage rdf:resource="http://localhost:8080/"/>
    <dc:contributor>Köhler, Thomas</dc:contributor>
    <dc:creator>Groth, Ulrich</dc:creator>
    <dcterms:issued>1994</dcterms:issued>
    <dc:creator>Arnecke, Ralf</dc:creator>
    <dcterms:rights rdf:resource="http://creativecommons.org/licenses/by-nc-nd/2.0/"/>
    <dc:contributor>Arnecke, Ralf</dc:contributor>
    <dspace:isPartOfCollection rdf:resource="https://kops.uni-konstanz.de/server/rdf/resource/123456789/29"/>
    <dcterms:hasPart rdf:resource="https://kops.uni-konstanz.de/bitstream/123456789/10040/1/Alpha_Alkylidenecyclopentanones_by_.pdf"/>
    <dcterms:abstract xml:lang="deu">An α-alkylidation of cyclopentanone was achieved in two reaction steps in an overall yield of 20 to 79% via a zinc chloride-catalyzed thioalkylation of the zinc enolate of methyl 2-oxocyclopentanecarboxylate (3) and subsequent saponification/desulfurization of the β-(phenylthio) ketone intermediates 5. For the saponificatioddesuiurization step DABCO proved to be the reagent of choice and superior to the use of alkali or magnesium halides.</dcterms:abstract>
    <dc:creator>Köhler, Thomas</dc:creator>
    <dcterms:available rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2011-03-24T18:16:10Z</dcterms:available>
    <bibo:uri rdf:resource="http://kops.uni-konstanz.de/handle/123456789/10040"/>
    <dc:rights>Attribution-NonCommercial-NoDerivs 2.0 Generic</dc:rights>
    <dc:language>eng</dc:language>
    <dc:format>application/pdf</dc:format>
    <dcterms:bibliographicCitation>First publ. in: Liebigs Annalen der Chemie 1994, 9, pp. 891-894</dcterms:bibliographicCitation>
    <dcterms:title>Alpha-Alkylidenecyclopentanones by Alpha-Alkylidation of Methyl 2-Oxocyclopentanecarboxylate</dcterms:title>
  </rdf:Description>
</rdf:RDF>
Interner Vermerk
xmlui.Submission.submit.DescribeStep.inputForms.label.kops_note_fromSubmitter
Kontakt
URL der Originalveröffentl.
Prüfdatum der URL
Prüfungsdatum der Dissertation
Finanzierungsart
Kommentar zur Publikation
Allianzlizenz
Corresponding Authors der Uni Konstanz vorhanden
Internationale Co-Autor:innen
Universitätsbibliographie
Nein
Begutachtet
Diese Publikation teilen