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Asymmetric gold‐catalyzed hydrocarboxylations are reported that show broad substrate scope. The hydrophobic effect associated with in situ‐formed aqueous nanomicelles gives good to excellent ee’s of product lactones. In‐flask product isolation, along with the recycling of the catalyst and the reaction medium, are combined to arrive at an especially environmentally friendly process.
Micellen zu Hilfe: Mit zwei Amphiphilen waren luftstabile wässrige Goldkatalysatorlösungen mit exzellenter Reaktivität und Rückgewinnbarkeit zugänglich. Mehrere α‐funktionalisierte Allene wurden damit glatt und effizient bei Raumtemperatur cycloisomerisiert. Die Zugabe von NaCl zur Reaktionsmischung führt zu größeren Micellen und induziert schnellere Reaktionen.
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