potassium fluoride; 18-crown-6 ether in N,N-dimethyl-formamide T=150°C; hydrofluorination; 8 h;

hydrogen; palladium on activated charcoal in ethanol Ambient temperature;

antimony(V) pentachloride; SbF3 in dichloromethane 4.3 h;

1: 88 percent / pyridine / 0.17 h / -10 °C 2: 65 percent / KF, CuI / dimethylformamide / 10 h / 100 °C View Scheme

1: 1.) tert-butyl nitrite, 2.) CuCl2 / 2.) CH3CN 2: 12 percent / antimony trifluoride, antimony pentachloride / CH2Cl2 / 4.3 h View Scheme

copper in acetonitrile T=60°C; 9 h; Inert atmosphere;

1: (trifluoromethyl)-trimethylsilane With copper(l) iodide; cesium fluoride in acetonitrile T=20°C; 0.5 h; Inert atmosphere; 2: With [Cu(MeCN)]4*CF3SO3 in acetonitrile T=20°C; 0.0166667 h; Inert atmosphere; 3: O-4-methylbenzyl S-methyl carbonodithioate in acetonitrile T=20°C; 0.0333333 h; Inert atmosphereSonication; Kinetics;

potassium tert-butylate in tert-butyl alcohol T=50°C; Rate constant;