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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Cuesta, Luciano Soler, Tatiana Urriolabeitia, Esteban P. |
| Description | Author Affiliation: Cuesta L ( Departamento de Activación de enlaces por complejos metálicos Instituto de Síntesis Química y Catálisis Homogénea, CSIC-Universidad de Zaragoza, Pedro Cerbuna 12, 50009 Zaragoza, Spain.) |
| Abstract | Novel cycloruthenated complexes 2 a–c, 4 a–c, and 6 a, b based on heteroaromatic cores have been synthesized by reaction of a series of heterocycle-based imines with $[\{RuCl(η^{6}-p-cymene)\}_{2}(μCl)_{2}]$ and $Cu(OAc)_{2}.$ This approach has proved efficient for the cyclometalation of thiophene, benzothiophene, furan, benzofuran, pyrrole, and indole derivatives. In addition, even a double cyclometalation process over the same heterocyclic ring is possible, yielding unprecedented bimetallic complexes. These ruthenacycles react with 3-hexyne through an unexpected pathway, which involves the coupling of the original imino heterocycle and acetylene followed by dearomatization to afford fused hetero-hydropyridyl ligands bonded to the {Ru(p-cymene)} organometallic moiety (i.e., 7 a–c and 8 a–c). These complexes represent, as far as we know, the first examples of this type of compound within the context of cyclometalation, and an exhaustive analysis of their structure was carried out in solution and solid state. Furthermore, these unique species react with $CuCl_{2},$ which promotes the rearomatization and the release of highly valuable aromatic fused bis-heterocycles (i.e., 9 a–c, 10 a–c, 11 a, and 12 a/12 a′), providing a novel and appealing synthetic route to this extraordinary family of molecules. |
| ISSN | 09476539 |
| e-ISSN | 15213765 |
| Journal | Chemistry - A European Journal |
| Issue Number | 47 |
| Volume Number | 18 |
| Language | English |
| Publisher | Wiley-VCH;ChemPubSoc Europe |
| Publisher Date | 2012-11-19 |
| Publisher Place | Germany |
| Access Restriction | Open |
| Subject Keyword | Alkynes Chemistry Heterocyclic Compounds Imines Organometallic Compounds Chemical Synthesis Ruthenium Models, Molecular Molecular Structure Research Support, Non-U.S. Gov't |
| Content Type | Text |
| Resource Type | Article |
| Subject | Organic Chemistry Catalysis |
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