Rhodium-catalysed 1,4-addition of diarylindium hydroxides to (alpha),(beta)-unsaturated carbonyl compounds

Diarylindium(III) hydroxides react with (alpha),(beta)-unsaturated carbonyl compounds in the presence of a rhodium catalyst to afford the 1,4-addition products in high yield. This reaction demonstrates the utility of diarylindium(III) hydroxide as an aryl source with rhodium catalysts.