1: phenyllithium With DABCO-bis(sulfur dioxide) in 1,4-dioxane T=20°C; 2 h; Inert atmosphereSchlenk technique; 2: bromobenzene; (9,9-dimethyl-9H-xanthene-4,5-diyl)bis(bis(3,5-bis(trifluoromethyl)phenyl)phosphine) With palladium diacetate; caesium carbonate T=110°C; 16 h; Inert atmosphereSchlenk technique;

1: phenyllithium With DABCO-bis(sulfur dioxide) in 1,4-dioxane T=20°C; 2 h; Inert atmosphereSchlenk technique; 2: 1-(iodo)-4-methylbenzene; (9,9-dimethyl-9H-xanthene-4,5-diyl)bis(bis(3,5-bis(trifluoromethyl)phenyl)phosphine) With tetrabutyl-ammonium chloride; palladium diacetate; caesium carbonate T=85°C; 16 h; Inert atmosphereSchlenk technique;

caesium carbonate; tris(dibenzylideneacetone)dipalladium(0) chloroform complex in 1,4-dioxane T=100°C; 8 h;

tris(dibenzylideneacetone)dipalladium(0) chloroform complex; caesium carbonate in 1,4-dioxane T=100°C; 2.5 h;