3 A molecular sieve; boron trifluoride diethyl etherate; MeSSnBu3; cesium fluoride 1.) toluene, 2.) DMF, rt.; Yield given. Multistep reaction;

3 A molecular sieve; boron trifluoride diethyl etherate; MeSSnBu3; cesium fluoride 1.) toluene, 2.) DMF, rt.; Yield given. Multistep reaction;

1.1: water; palladium diacetate; triphenylphosphine / tetrahydrofuran / 24 h / 50 °C 2.1: n-butyllithium / tetrahydrofuran; hexane / 0.17 h / 0 °C 2.2: 0 - 20 °C 3.1: 1,1'-bis-(diphenylphosphino)ferrocene; water; palladium diacetate / tetrahydrofuran / 24 h / 50 °C View Scheme

1.1: water; palladium diacetate; triphenylphosphine / tetrahydrofuran / 24 h / 50 °C 2.1: n-butyllithium / tetrahydrofuran; hexane / 0.17 h / 0 °C 2.2: 0 - 20 °C 3.1: water; palladium diacetate; tri-cyclo-hexyl-phosphine / tetrahydrofuran / 24 h / 50 °C View Scheme

boron trifluoride diethyl etherate; dimethylthio-dimethyl-tin; acetic acid 1.) toluene, 0 deg C, 6 h, 2.) 0 deg C, 30 min; Yield given. Multistep reaction. Yields of byproduct given;