Calix[4]arene-Supported N-Heterocyclic Carbene Ligands as Catalysts for Suzuki Cross-Coupling Reactions of Chlorotoluene

Beitrag in einer Fachzeitschrift
(Originalarbeit)


Details zur Publikation

Autor(en): Frank M, Maas G, Schatz J
Zeitschrift: European Journal of Organic Chemistry
Verlag: Wiley-VCH Verlag
Jahr der Veröffentlichung: 2004
Heftnummer: 3
Seitenbereich: 607-613
ISSN: 1434-193X


Abstract


Stable N-heterocyclic carbenes are generated starting from 5,17-(bis-imidazolium)-substituted calix[4]arenes. Addition of Pd(OAc) to these carbenes leads to macrocyclic cis-palladium chelate complexes in which the distal bridging of the upper rim leads to a strong distortion of the calix[4]arene skeleton which was proven by X-ray crystal structure determination. Using an in-situ catalytic system consisting of a calixarene-imidazolium salt, Cs CO as a base and a source of palladium, a species is formed which can be used to catalyse the Suzuki cross-coupling of 4-chloro toluene. © Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2004.



FAU-Autoren / FAU-Herausgeber

Schatz, Jürgen Prof. Dr.
Professur für Organische Chemie


Zitierweisen

APA:
Frank, M., Maas, G., & Schatz, J. (2004). Calix[4]arene-Supported N-Heterocyclic Carbene Ligands as Catalysts for Suzuki Cross-Coupling Reactions of Chlorotoluene. European Journal of Organic Chemistry, 3, 607-613.

MLA:
Frank, Markus, Gerhard Maas, and Jürgen Schatz. "Calix[4]arene-Supported N-Heterocyclic Carbene Ligands as Catalysts for Suzuki Cross-Coupling Reactions of Chlorotoluene." European Journal of Organic Chemistry 3 (2004): 607-613.

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