2019
DOI: 10.1002/ange.201812577
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Duale Gold/Silber‐Katalyse über oxidative Addition zu Alkinylgold(III)‐Zwischenstufen und silberkatalysierte C‐H‐Aktivierung für die direkte Alkinylierung von Cyclopropenen

Abstract: Während goldkatalysierte synergistische katalytische Prozesse,d ie Transmetallierung mit anderen Metallen einbeziehen, gut verstanden sind, sind Au I /Au III -Zyklen in diesen Reaktionen sehr selten. Hier wird eine goldkatalysierte direkte Alkinylierung von Cyclopropenen über zwei aktive Katalysezyklen ermçglicht, ein oxidativer Katalysezyklus mit einem über oxidative Addition gebildeten Alkinyl-Au III -Komplex, und eine silbervermittelte C-H-Aktivierung. Schema 1. Bereits bekannte Au/M-bimetallische Katalyse … Show more

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Cited by 32 publications
(2 citation statements)
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“…[4,21] Related bimetallic species, containing both s-and p-bound Au centers, have been generated previously by distinct methods. [22] A complex similar to 8 b can also be formed using 2,2'-bipyridine as the ligand (see Supporting Information).…”
mentioning
confidence: 99%
“…[4,21] Related bimetallic species, containing both s-and p-bound Au centers, have been generated previously by distinct methods. [22] A complex similar to 8 b can also be formed using 2,2'-bipyridine as the ligand (see Supporting Information).…”
mentioning
confidence: 99%
“…Nos dias atuais, a catálise baseada em materiais que contêm ouro (figura 2), é uma das áreas catalíticas mais estudadas [47]- [49] para um amplo espectro de reações, que vão desde a oxidação do CO [50], à oxidação seletiva de álcoois [51] [52] e carboidratos, como a glicose. Outras reações que podem ser feitas usando catalisadores de ouro são por exemplo, a ativação da ligação C-H [53], epoxidação de alcenos [54] e síntese direita de peróxido de hidrogênio [55], Figura 2. Principais formas e tamanhos das nanopartículas de ouro.…”
Section: Uso Do Ouro Na Catálise Heterogêneaunclassified