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We report an unprecedented domino polycyclization from readily available 2,4‐dienals and cyclic α,β‐unsaturated imines that is initiated by an iso‐Nazarov reaction. This Brønsted acid promoted reaction enables the concomitant formation of four bonds, three cycles, and four contiguous stereogenic centers to yield elaborated structures in a single operation. A range of fused hexacyclic molecules is...
Freiräume: In letzter Zeit wurden Fortschritte bei der übergangsmetallfreien direkten Aminierung von Arylboronsäuren und deren Derivaten beschrieben (siehe Schema). Diese Reaktionen basieren auf der Verwendung von Hydroxylamin‐ oder Azidderivaten und bieten ein großes Potenzial für weitere Anwendungen.
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