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Synthesis and Ligand Properties of a Persistent,All‐Carbon Four‐Membered‐Ring Allene |
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| Authors: | Mohand Melaimi Dr Pattiyil Parameswaran Dr Bruno Donnadieu Gernot Frenking Prof Guy Bertrand Prof |
| Institution: | 1. UCR‐CNRS Joint Research Chemistry Laboratory (UMI 2957), Department of Chemistry, University of California, Riverside, CA 92521‐0403 (USA), Fax: (+1)951‐827‐2725, http://research.chem.ucr.edu/groups/bertrand/guybertrandwebpage/;2. Fachbereich Chemie, Philipps‐Universit?t Marburg, Hans‐Meerwein‐Strasse, 35032 Marburg (Germany), Fax: (+49)?6421‐282‐5566, http://www.uni‐marburg.de/fb15/ag‐frenking |
| Abstract: | A single donor substituent at each terminus is sufficient to make the CCC skeleton of allenes very flexible and give carbon(0) character to the central carbon atom. This allows the synthesis of a four‐membered carbocyclic allene, which can be doubly protonated and behaves as a very strong η1‐donor ligand for transition metals (see scheme).  |
| Keywords: | allenes C ligands reactive intermediates strained molecules |