iron; acetic acid

dicyclohexyl(2',4',6'-triisopropyl-5-methoxy-3,4,6-trimethyl-[1,1'-biphenyl]-2-yl)phosphine; C50H70NO4PPdS; C50H70NO4PPdS; dicyclohexyl(2',4',6'-triisopropyl-4-methoxy-3,5,6-trimethyl-[1,1'-biphenyl]-2-yl)phosphine; ammonia; sodium t-butanolate in 1,4-dioxane T=80°C; 24 h; Inert atmosphere; Reagent/catalyst; Overall yield = 70 percent; Overall yield = 103.8 mg;

1: 96 percent / pTsOH / toluene / 100 °C 2: hydrogen / Pd/C / ethanol View Scheme

1: Erhitzen unter vermindertem Druck 2: iron-powder; aqueous acetic acid View Scheme

P=10 - 20 Torr; bei der Destillation;