In Situ Generated Gold Nanoparticles on Active Carbon as Reusable Highly Efficient Catalysts for a C−C Stille Coupling

Autor:	Dennis Beierlein, Julia Holz, René Peters, Gunther Richter, Camilla Pfeffer, Hualiang Zuo, Elias Klemm
Rok vydání:	2019
Předmět:	In situ 010405 organic chemistry Chemistry Halide Nanoparticle General Chemistry 010402 general chemistry Heterogeneous catalysis 01 natural sciences Combinatorial chemistry Catalysis 0104 chemical sciences Stille reaction Colloidal gold Reagent
Zdroj:	Angewandte Chemie International Edition. 58:10330-10334
ISSN:	1521-3773 1433-7851
DOI:	10.1002/anie.201902352
Popis:	Gold nanoparticle catalysts are important in many industrial production processes. Nevertheless, for traditional C sp2 -C sp2 cross-coupling reactions they have been rarely used and Pd catalysts usually give a superior performance. Herein we report that in situ formed gold metal nanoparticles are highly active catalysts for the cross coupling of allylstannanes and activated alkylbromides to form C sp3 -C sp3 bonds. Turnover numbers up to 29 000 could be achieved in the presence of active carbon as solid support, which allowed for convenient catalyst recovery and reuse. The present study is a rare case where a gold metal catalyst is superior to Pd catalysts in a cross-coupling reaction of an organic halide and an organometallic reagent.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::911438fc46bb6f77d2a62f330edbc042 https://doi.org/10.1002/anie.201902352 Zobrazit plný text záznamu Plný text