1: iodine; ammonium cerium (IV) nitrate / acetonitrile / 80 °C 2: triethylamine; copper(l) iodide; bis-triphenylphosphine-palladium(II) chloride / N,N-dimethyl-formamide 3: tetrabutyl ammonium fluoride / acetonitrile 4: sodium hydroxide / ethanol View Scheme

1: triethylamine; copper(l) iodide; bis-triphenylphosphine-palladium(II) chloride / N,N-dimethyl-formamide 2: tetrabutyl ammonium fluoride / acetonitrile 3: sodium hydroxide / ethanol View Scheme

1: tetrabutyl ammonium fluoride / acetonitrile 2: sodium hydroxide / ethanol View Scheme

sodium hydroxide in ethanol

1: 1,4-dioxane 2: iodine; ammonium cerium (IV) nitrate / acetonitrile / 80 °C 3: triethylamine; copper(l) iodide; bis-triphenylphosphine-palladium(II) chloride / N,N-dimethyl-formamide 4: tetrabutyl ammonium fluoride / acetonitrile 5: sodium hydroxide / ethanol View Scheme