1: pyridine / dichloromethane / 24 h / 20 °C 2: C88H48F24N(1+)*Br(1-); potassium hydroxide / toluene; water / 48 h / 0 °C 3: [1,3-bis(diphenylphosphino) propane] dichloronickel(II); diisobutylaluminium hydride / toluene / 3 h / 0 - 20 °C 4: magnesium; titanium (IV) isopropoxide; chloro-trimethyl-silane / tetrahydrofuran / 20 h / 50 °C / |Inert atmosphere View Scheme