Cyclic (Alkyl)(amino)carbenes (CAACs): Recent Developments
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TL;DR: The most important results published up to the end of 2013 are briefly summarized, while the majority of this Review focuses on findings reported within the last three years.
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Abstract: Discovered in 2005, cyclic (alkyl)(amino)carbenes (CAACs) are among the most nucleophilic (σ donating) and also electrophilic (π-accepting) stable carbenes known to date. These properties allow them to activate a variety of small molecules and enthalpically strong bonds, to stabilize highly reactive main-group and transition-metal diamagnetic and paramagnetic species, and to bind strongly to metal centers, which gives rise to very robust catalysts. The most important results published up to the end of 2013 are briefly summarized, while the majority of this Review focuses on findings reported within the last three years.
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TL;DR: In this article, a review of N-heterocyclic carbenes encompassing their history, properties and applications in transition metal catalysis, on-surface chemistry, main group chemistry and organocatalysis is provided.
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Recent advances in chemical dearomatization of nonactivated arenes.
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References
N-heterocyclic carbene metal complexes: photoluminescence and applications
TL;DR: This review covers the advances made in the synthesis of luminescent transition metal complexes containing N-heterocyclic carbene (NHC) ligands, which gives rise to high energy emissions, and consequently, to the desired blue colour needed for OLED applications.
Cross‐Coupling Reactions between Stable Carbenes
TL;DR: By utilizing stable carbenes with low-lying LUMOs, coupling with the stable nucleophilic diaminocyclopropenylidene was achieved, resulting in the formation of two new and rare examples of a bent allene as well as the isolation of the first carbene-carbene heterodimer.
Bottleable (Amino)(Carboxy) Radicals Derived from Cyclic (Alkyl)(Amino) Carbenes
TL;DR: Monomeric (amino)(carboxy) radicals were synthesized in two steps: the addition of a stable cyclic (alkyl)(amino) carbene to an acyl chloride, followed by a one-electron reduction.
Air-Persistent Monomeric (Amino)(carboxy) Radicals Derived from Cyclic (Alkyl)(Amino) Carbenes
Janell K. Mahoney,David C. Martin,David C. Martin,Fabrice Thomas,Curtis E. Moore,Arnold L. Rheingold,Guy Bertrand +6 more
TL;DR: DFT calculations show that (amino)(carboxy) radicals evolve from C-centered radical to ambidentate C,O-radicals when increasing the electron-withdrawing properties of the carbonyl substituent.
Three-coordinate iron(IV) bisimido complexes with aminocarbene ligation: synthesis, structure, and reactivity.
TL;DR: The synthesis, characterization, and reactivity studies on novel three-coordinate iron(IV) bisimido complexes with aminocarbene ligation are reported, suggesting a low-spin singlet ground state and multiple-bond character of their Fe-N bonds.