Diaminocarbene[3]ferrocenophanes and Their Transition-Metal Complexes

✍ Scribed by Dimitri M. Khramov; Evelyn L. Rosen; Vincent M. Lynch; Christopher W. Bielawski

• Book ID: 101535673
• Publisher: John Wiley and Sons
• Year: 2008
• Tongue: English
• Weight: 414 KB
• Volume: 120
• Category: Article
• ISSN: 0044-8249
• DOI: 10.1002/ange.200704978

✦ Synopsis

N-heterocyclic carbenes [1] (NHCs) form robust complexes with nearly every transition metal. In many instances, these complexes function as catalysts with superior activities and selectivities. [2] The broad utility and application of NHCs can be traced to synthetic advancements which enable access to derivatives with novel N substituents and architectures. [3] We envisioned that it would be possible to create a new class of carbene-based ligands with relatively wide N-C-N angles and redox-switchable functions [4] by linking diaminocarbenes to 1,1'-disubstituted metallocenes. [5] In view of the affinity of carbenes for transition metals, the use of such ligands may lead to new redox-active complexes with tunable electronic properties. Herein, we describe a novel carbene architecture that contains a 1,1'-disubstituted ferrocene moiety and [