Leenders SH, Dürr M, Ivanovic-Burmazovic I, Reek JN (2016)
Publication Status: Published
Publication Type: Journal article, Original article
Publication year: 2016
Book Volume: 358
Pages Range: 1509-1518
Journal Issue: 9
Nanospheres can be formed by combining 24 bispyridinyl building blocks with a palladium or platinum precursor. These spheres can be functionalized on the inside with a gold(I) chloride complex leading to a high local concentration of gold(I) complexes. The high local concentration makes the neutral gold species an active catalyst. Furthermore, the platinum-gold spheres can be post-modified with a silver(I) salt to form cationic gold(I) catalysts. The platinum assemblies are demonstrated to be stable in the presence of various substrates and as a result several cyclization reactions have been carried out using these new spheres as catalysts. Higher conversions in a [4+2] cycloaddition are observed for the sphere catalyst compared to the mono-nuclear analogues. Also the cyclization of 1,6-enynes can be facilitated by the confined gold catalyst and high activity is observed in the activation of allenes. For the lactonization of alkynoic acids, a different selectivity is observed compared to a standard gold(I) complex, demonstrating that the high local concentration due to a confined space can induce other selectivity in catalysis.
APA:
Leenders, S.H., Dürr, M., Ivanovic-Burmazovic, I., & Reek, J.N. (2016). Gold Functionalized Platinum M12L24-Nanospheres and Their Application in Cyclization Reactions. Advanced Synthesis & Catalysis, 358(9), 1509-1518. https://dx.doi.org/10.1002/adsc.201600071
MLA:
Leenders, Stefan H.A.M, et al. "Gold Functionalized Platinum M12L24-Nanospheres and Their Application in Cyclization Reactions." Advanced Synthesis & Catalysis 358.9 (2016): 1509-1518.
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