1: 3,5-bis(trifluoromethyl)phenyl 4-(dimethylamino)benzenesulfonate With para-fluorostyrene; CuCN*2LiCl; phenyl-magnesium chloride; tetra-(n-butyl)ammonium iodide; cobalt(II) 2,4-pentanedionate in tetrahydrofuran; N,N'-dimethyl-N,N'-propyleneurea T=-20 - 25°C; Inert atmosphere; 2: benzoyl chloride in tetrahydrofuran; N,N'-dimethyl-N,N'-propyleneurea T=-20 - 25°C; 2.5 h; Inert atmosphere;

palladium diacetate; caesium carbonate; triphenylphosphine in o-xylene T=150°C; 16 h; Inert atmosphere;

1: diethyl ether 2: CrO3; aq. H2SO4 View Scheme

1: diethyl ether 2: CrO3; aq. H2SO4 View Scheme

chromium(VI) oxide; sulfuric acid Jones oxidation;

(i) Mg, Et2O, (ii) /BRN= 471223/, (iii) aq. Na2Cr2O7, H2SO4, AcOH, benzene; Multistep reaction;