Part II. N-Heterocyclic Carbene Rhodium Catalyzed Arylation/Carbonylative Arylation
Chapter 1. N-Heterocyclic Carbene Rhodium-Catalyzed Carbonylative C-C Bond Formation of Allenols with Arylboronic Acids under Carbon Monoxide
(3-Butyl-1-methylimidaz...
Part II. N-Heterocyclic Carbene Rhodium Catalyzed Arylation/Carbonylative Arylation
Chapter 1. N-Heterocyclic Carbene Rhodium-Catalyzed Carbonylative C-C Bond Formation of Allenols with Arylboronic Acids under Carbon Monoxide
(3-Butyl-1-methylimidazole)(1,5-cyclooctadiene)rhodium chloride [Rh(Ibm)(cod)Cl] was found to be an efficient catalyst in the carbonylative arylation of allenols with arylboronic acids in the presence of carbon monoxide. Efficient, simple, and versatile methods for the synthesis of 2-methylene-1-arylbut-3-en-1-ones have thus been developed.
Chapter 2. Water-Soluble N-Heterocyclic Carbenes Having a Quaternary Ammonium Moiety: Application as Ligands to Rhodium Catalyst
Water-soluble N-heterocyclic carbene ligands having a quaternary ammonium moiety were prepared by nickel nanopaticle-catalyzed C-Cl bond activation and coupling of α,ω-dichloroalkanes with triethylamine and a subsequent reaction with imidazoles. The NHC-rhodium complexes were active catalysts for hydroarylation of alkynes with arylboronic acids in toluene/H2O mixture at mild reaction condition.