Transition metal catalyzed valence isomerizations. Role of the ligand

1971 ◽  
Vol 93 (26) ◽  
pp. 7345-7347 ◽  
Author(s):  
William G. Dauben ◽  
Andrew J. Kielbania
Keyword(s):  
Transition Metal ◽  
Transition Metal Catalyzed ◽  
Metal Catalyzed

scholarly journals Non-Classical Anionic Naked N-Heterocyclic Carbenes: Fundamental Properties and Emerging Applications in Synthesis and Catalysis

Catalysts ◽  
2018 ◽  
Vol 8 (12) ◽  
pp. 620 ◽  
Author(s):  
Mei Leow ◽  
Curtis Ho ◽  
Michael Gardiner ◽  
Alex Bissember
Keyword(s):  
Transition Metal ◽  
Heterocyclic Carbenes ◽  
Molecular Scaffolds ◽  
Ongoing Research ◽  
Fundamental Properties ◽  
Transition Metal Catalyzed ◽  
Metal Catalyzed

Ongoing research exploring the chemistry of N-heterocyclic carbenes (NHCs) has led to the development and discovery of new NHC subclasses that deviate beyond Arduengo’s prototypical N,N′-disubstituted imidazol-2-ylidene-based structures. These systems continue to enable and extend the fundamental role of NHC ligands in synthesis and catalysis. In this regard, the advent of protic NHCs has garnered particular interest. This derives in part from their applications to the selective preparation of unique molecular scaffolds and their unprecedented bifunctional reactivity, which can be exploited in transition metal-catalyzed processes. In comparison, the synthetic applications of closely related anionic naked NHCs remain rather underexplored. With this in mind, this review highlights the interesting fundamental properties of non-classical anionic naked NHCs, and focuses on their emerging applications in synthesis and catalysis.

Chelation-assisted transition metal-catalysed C–H chalcogenylations

2020 ◽  
Vol 7 (8) ◽  
pp. 1022-1060 ◽  
Author(s):  
Wenbo Ma ◽  
Nikolaos Kaplaneris ◽  
Xinyue Fang ◽  
Linghui Gu ◽  
Ruhuai Mei ◽  
...  
Keyword(s):  
Transition Metal ◽  
Recent Advances ◽  
Site Selectivity ◽  
Transition Metal Catalyzed ◽  
Metal Catalyzed

This review summarizes recent advances in C–S and C–Se formations via transition metal-catalyzed C–H functionalization utilizing directing groups to control the site-selectivity.

Sign in / Sign up

Export Citation Format

Share Document