Oxonereg;; pre-IBS in acetonitrile T=90°C; 18 h;

1-(chloromethyl)-4-fluoro-1,4-diazoniabicyclo-[2.2.2]octane bis(tetrafluoroborate) in dichloromethane; acetonitrile T=-78 - 0°C;

tetra(n-butyl)ammonium hydrogen sulphate in dichloromethane; water

in diethyl ether T=-78 - 20°C;

tributylphosphine; palladium diacetate in 1-methyl-pyrrolidin-2-one T=80°C; 4 h;

in diethyl ether Heating;

T=-78°C;

1: 4,4,4-trifluoro-1-(N-methoxy-N-methylamino)-1-phenyl-1-(trimethylsiloxyl)-2-butyne With tetrabutyl ammonium fluoride in tetrahydrofuran; diethyl ether T=-15°C; 0.166667 h; 2: 2,2,2,trifluoromethyl-(4'-trifluoromethyl)acetophenone in tetrahydrofuran; diethyl ether T=20°C; 5 h;