Synthesis of a Carbodicyclopropenylidene: A Carbodicarbene based Solely on Carbon |
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| Authors: | Conor Pranckevicius Liu Liu Prof. Dr. Guy Bertrand Prof. Dr. Douglas W. Stephan |
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| Affiliation: | 1. Department of Chemistry, University of Toronto, Toronto, ON, Canada;2. Joint UCSD-CNRS Research Chemistry Laboratory (UMI 3555), Department of Chemistry and Biochemistry, University of California San Diego, La Jolla, CA, USA |
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| Abstract: | The first carbodicarbene stabilized by flanking cyclopropenylidenes is reported. Tetraphenylcarbodicyclopropenylidene ( 2 ) is accessed by deprotonation of the corresponding triafulvene cyclopropenium salt, and has been spectroscopically characterized in [D8]THF solution at ?60 °C. Main‐group and transition‐metal complexes of 2 have been accessed, and have revealed the high sigma donating ability, and exclusive η1 binding of this neutral all carbon ligand. Variable temperature NMR spectroscopy studies reveal varying degrees of free rotation in the flanking cyclopropenylidene groups of 2 in its coordination compounds. |
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| Keywords: | bent allenes carbodicarbenes carbon donors carbones gold complexes |
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