tris-(dibenzylideneacetone)dipalladium(0); Nalco silica sol 1060 in hexane; water; ethyl acetate; toluene

1.1: n-butyllithium / tetrahydrofuran / 5 h / -78 - 20 °C 1.2: -78 - 20 °C 2.1: dicyclohexyl(2′,6′-dimethoxybiphenyl-2-yl)phosphine; tris-(dibenzylideneacetone)dipalladium(0); potassium phosphate / toluene; water / 18 h / |Inert atmosphere; |Reflux 3.1: platinum on activated charcoal; palladium on activated charcoal; hydrogen / ethanol / 2 h / 3723.56 Torr View Scheme

1: dicyclohexyl(2′,6′-dimethoxybiphenyl-2-yl)phosphine; tris-(dibenzylideneacetone)dipalladium(0); potassium phosphate / toluene; water / 18 h / |Inert atmosphere; |Reflux 2: platinum on activated charcoal; palladium on activated charcoal; hydrogen / ethanol / 2 h / 3723.56 Torr View Scheme