1.1: diisobutylaluminium hydride / dichloromethane / 1 h / -78 °C 1.2: 1.17 h / -78 - -40 °C 2.1: N-ethyl-N,N-diisopropylamine; boron trifluoride diethyl etherate / dichloromethane / 2.17 h / -5 - 20 °C 3.1: triphenylphosphine; palladium diacetate; potassium acetate; tetraethylammonium chloride / acetonitrile / 1.5 h / 80 °C / |Microwave irradiation View Scheme