Gold(I) Complexes in Ionic Liquids: An Efficient Catalytic System for the C-H Functionalization of Arenes and Heteroarenes under Mild Conditions
作者:Marco Baron、Andrea Biffis
DOI:10.1002/ejoc.201900529
日期:2019.6.16
Use of ionic liquids allows to boost the reactivity of gold(I) complexes as catalysts in the hydroarylation of alkynes with arenes and heteroarenes, enabling the use of <1 mol‐% catalyst under mild conditions (low temperature, no acid cocatalyst). The catalytic system also exhibits tunable selectivity and recyclability.
Chelatingdicarbenecomplexes of palladium(II) and platinum(II) catalyse at room temperature with 1% catalyst loading the reaction of ethyl phenylpropiolate with aromatic heterocycles to yield synthetically useful intermediates for fine chemicals without the need to use prefunctionalized substrates. The reaction outcome was found to be strongly dependent on the nature of the anionic ligands at the