1: potassium iodide; triethylamine / toluene / 17 h / 90 °C
2: N-ethyl-N,N-diisopropylamine / 1-methyl-pyrrolidin-2-one / 19 h / Heating
3: potassium hexamethylsilazane / toluene / 17 h / -35 - -33 °C
4: sodium methylate / methanol / 4 h / Reflux
5: sodium hydroxide / methanol / 2 h / 50 °C
6: sodium tungstate (VI) dihydrate; dihydrogen peroxide / water; acetonitrile / 17 h / 5 °C
7: sodium tert-pentoxide / 2-methyltetrahydrofuran / 15 h / 0 - 20 °C
8: caesium carbonate / 2-methyltetrahydrofuran / 2 h / -5 °C
9: potassium phosphate / N,N-dimethyl acetamide / 20 °C
10: 2,4,6-tripropyl-1,3,5,2,4,6-trioxatriphosphinane-2,4,6-trioxide / acetonitrile; ethyl acetate / 2 h / 10 - 20 °C