1: (2E,4E)-5-(benzyldimethylsilyl)-3-methylpenta-2,4-dien-1-ol With tetrabutyl ammonium fluoride in tetrahydrofuran T=20°C; Hiyama Coupling; 0.5 h; Inert atmosphereDarkness; 2: 2-[(1’E,3’E)-3’-methyl-4’-iodobuta-1’,3’-dien-1’yl]-1,3,3-trimethylcyclohex-1-ene With tris(dibenzylideneacetone)dipalladium(0) chloroform complex in tetrahydrofuran Hiyama Coupling; 1 h; Inert atmosphereDarkness;

1.1: tetrabutyl ammonium fluoride / tetrahydrofuran / 0.5 h / 20 °C / |Inert atmosphere; |Darkness 1.2: 1 h / |Inert atmosphere; |Darkness 2.1: manganese(IV) oxide; sodium carbonate / dichloromethane / 4 h / |Inert atmosphere View Scheme