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In recent years, dihydrogen activation at non‐metallic centers has received increasing attention. A system in which dihydrogen is trapped by a pyridylidene intermediate that is generated from a pyridinium salt and a base is now reported. The dihydropyridine formed in this process can act as reducing agent towards organic electrophiles. By coupling the hydrogen‐activation step with subsequent hydride...
Das Abfangen von H2 mit einem Pyridyliden, das aus dem Pyridinium‐Salz und einer Base gewonnen wurde, beschreiben A. Pfaltz, P. Mauleón et al. in ihrer Zuschrift auf S. 9678 ff. Diese Wasserstoff‐Aktivierung kann mit einem Hydridtransfer zu einem Imin in einem katalytischen Prozess kombiniert werden. So liefert das N‐Phenylimin von Phenyltrifluormethylketon in Gegenwart von N‐Mesityl‐3,5‐bis(2,6‐dimethylphenyl)pyridiniumtriflat...
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