Organometallic chemistry of 15-membered tri-olefinic macrocycles: catalysis by palladium(0) complexes in carbon-carbon bond-forming reactions |
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Authors: | Marcial Moreno-Mañas Roser Pleixats Adelina Vallribera |
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Institution: | a Department of Chemistry, Universitat Autònoma de Barcelona, Cerdanyola 08193-Barcelona, Spain b Department of Chemistry, Universitat de Girona, 17071-Girona, Spain |
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Abstract: | 15-Membered macrocycles (E,E,E)-1,6,11-tris(arenesulfonyl)-1,6,11-triazacyclopentadeca-3,8,13-trienes (1) are prepared from arenesulfonamides and trans-1,4-dibromo-2-butene. Macrocycles 1 coordinate palladium(0), platinum(0), and silver(I). The palladium complexes are useful and reutilizable catalysts or precatalysts in Suzuki cross-couplings, butadiene telomerizations, hydroarylation of alkynes, and in the Heck reaction. Structurally related macrocycles are also available by similar synthetic procedures. |
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Keywords: | Alkene ligands Macrocycles Heterocycles Olefin complexes Catalysis |
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