Multi-step reaction with 8 steps
1: 80 percent / potassium carbonate / toluene / 130 °C / Heating
2: 1.) butyllithium / 1.) THF/hexane, -78 deg C, 1 h, 2.) 1 h
3: 1.) 9-borabicyclo<3.3.1>non-9-yl trifluoromethanesulfonate, diisopropylethylamine / 1.) dichloromethane, 0 deg C, 0.5 h, 2a.) -78 deg C, 0.5 h, 2b.) RT, 1.5 h
4: 85 percent / 4-dimethylaminopyridine / CH2Cl2 / 15 h / 25 °C
5: 1.) C6H13BH2 (from borane-tetrahydrofuran and 2,3-dimethylbut-2-ene), 2.) aq. sodium bicarbonate, 30percent H2O2 / 1.) THF, 0 deg C, 5 h, 2.) 25 deg C, 12 h
6: 91 percent / oxalic acid / methanol / 1 h / 25 °C
7: N-methylmorpholine N-oxide, tris(triphenylphosphine)ruthenium(II) chloride / acetone / 3 h / 25 °C
8: Fetizon's reagent / toluene / 1 h / Heating
With
dmap; n-butyllithium; tris(triphenylphosphine)ruthenium(II) chloride; C6H13BH2 (from borane-tetrahydrofuran and 2,3-dimethylbut-2-ene); dihydrogen peroxide; oxalic acid; sodium hydrogencarbonate; potassium carbonate; 4-methylmorpholine N-oxide; N-ethyl-N,N-diisopropylamine; silver carbonate; 9-BBN triflate;
In
methanol; dichloromethane; acetone; toluene;