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The {N2} unit of aryldiazonium salts undergoes unusually facile triple‐bond metathesis on treatment with molybdenum or tungsten alkylidyne ate complexes endowed with triphenylsilanolate ligands. The reaction transforms the alkylidyne unit into a nitrile and the aryldiazonium entity into an imido ligand on the metal center, as unambiguously confirmed by X‐ray structure analysis of two representative...
Die frühe Entwicklung der Alkinmetathese war nicht frei von einer gewissen Paradoxie: Zwar konnten der vorgeschlagene Mechanismus der Reaktion schnell verifiziert und mehrere effektive Katalysatoren bereitgestellt werden, doch blieben die Auswirkungen auf die Synthesechemie für viele Jahre äußerst bescheiden. In jüngster Zeit scheinen die Dinge jedoch in Bewegung zu geraten: Die außerordentliche Aktivität...
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