Fixation of nitrous oxide by mesoionic and carbanionic N-heterocyclic carbenes
نویسندگان
چکیده
منابع مشابه
Organocatalysis by N-heterocyclic carbenes.
In the investigation of efficient chemical transformations, the carbon-carbon bond-forming reactions play an outstanding role. In this context, organocatalytic processes have achieved considerable attention.1 Beside their facile reaction course, selectivity, and environmental friendliness, new synthetic strategies are made possible. Particularly, the inversion of the classical reactivity (Umpol...
متن کاملN-Heterocyclic carbenes
The N-heterocyclic carbenes (NHC) now hold a preferredligand status in organic and organometallic chemistry. Their role in catalysis continues to grow. When the editorial staff at the Beilstein Journal of Organic Chemistry contacted me to act as a guest editor for the thematic series “N-Heterocyclic carbenes”, I was more than happy to accept what appeared to me to be a simple and exciting endea...
متن کاملFacile base-free in situ generation and palladation of mesoionic and normal N-heterocyclic carbenes at ambient conditions.
Synthesis of normal and mesoionic N-heterocyclic carbene Pd(II) complexes in near quantitative yields from the corresponding NHC precursor salts under base free and ambient conditions is reported. A plausible mechanism involving charge-assisted hydrogen bonded intermediates is proposed.
متن کاملDiverse chemical applications of N-heterocyclic carbenes.
N-Heterocyclic carbenes, or NHCs as they are commonly abbreviated, have attracted significant interest over the past decade due to their widespread utility in chemical transformations. As ligands on transition metals, NHCs have been found to have properties similar to those of the widely employed phosphine ligand, due to their ability to act as both a Lewis base and a Lewis acid at the same tim...
متن کاملRare‐Earth‐ and Uranium‐Mesoionic Carbenes: A New Class of f‐Block Carbene Complex Derived from an N‐Heterocyclic Olefin
Neutral mesoionic carbenes (MICs) have emerged as an important class of carbene, however they are found in the free form or ligated to only a few d-block ions. Unprecedented f-block MIC complexes [M(N'')3 {CN(Me)C(Me)N(Me)CH}] (M=U, Y, La, Nd; N''=N(SiMe3 )2 ) are reported. These complexes were prepared by a formal 1,4-proton migration reaction when the metal triamides [M(N'')3 ] were treated w...
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ژورنال
عنوان ژورنال: Chemical Communications
سال: 2017
ISSN: 1359-7345,1364-548X
DOI: 10.1039/c7cc01592e