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Published TCIMAIL newest issue No.198
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CAACs (Cyclic Alkyl Amino Carbenes) have been developed by the Bertrand group as an alternative cyclic carbene species to that of of NHCs (N-Heterocyclic carbenes).1) CAACs are analogs of NHCs in which the one of the key nitrogens has been replaced with an electron-rich carbon atom. As a result, the CAACs' carbene carbon behaves as a strong σ donnor.2) CAACs are able to coordinate to not only transition metals but also non-transition metals and boron. The unique reactivity of those complexes have been reported in recent years and is an area of active research.3-10)
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References
- 1)Stable Cyclic (Alkyl)(amino)carbenes as Rigid or Flexible, Bulky, Electron-Rich Ligands for Transition-Metal Catalysts: A Quaternary Carbon Atom Makes the Difference V.
- 2)Cyclic (alkyl)(amino)carbene Gold(I) Complexes: A Synthetic and Structural Investigation
- 3)Cyclic (Alkyl)(amino)carbenes (CAACs): Stable Carbenes on the Rise
- 4)Group 1 and 2 Cyclic (alkyl)(amino)carbene Complexes
- 5)Synthesis and Characterization of a Neutral Tricoordinate Organoboron Isoelectronic with Amines
- 6)Building a Lewis Base with Boron
- 7)Nitrogen fixation and reduction at boron
- 8)Hydrogenation of fluoroarenes: Direct access to all-cis-(multi)fluorinated cycloalkanes
- 9)Highly Selective Hydrogenation of Aromatic Ketones and Phenols Enabled by Cyclic (Amino)(alkyl)carbene Rhodium Complexes
- 10)Cyclic Alkyl Amino Carbene (CAAC) Ruthenium Complexes as Remarkably Active Catalysts for Ethenolysis
