Multi-step reaction with 12 steps
1: Et3N / CH2Cl2 / 3 h / Ambient temperature
2: aq. CrO3, H2SO4 / acetone / 2 h / Ambient temperature
3: 1.) LHMDS / 1.) THF, from -78 deg C to 0 deg C, 2.) THF, -78 deg C
4: 83 percent / n-Bu4NOTf, aq. K2CO3, 14 percent Pd(OAc)2 / dimethylformamide / 14 h / 55 °C
5: 2,6-lutidine / CH2Cl2 / 0.17 h / Ambient temperature
6: MeOH / CH2Cl2 / 0.25 h / Ambient temperature
7: Et3N / CH2Cl2 / 3 h
8: pyridine*HF / 2 h / Ambient temperature
9: 1,3,5-trimethyl-benzene / 3.5 h / 165 °C
10: 63 percent / KF, KHCO3, 30 percent aq. H2O2 / tetrahydrofuran; methanol / 1.5 h / Heating
11: pyridine, DMAP / CH2Cl2 / 0.5 h / Ambient temperature
12: AIBN, tributyltin hydride / benzene / 1 h / Heating
With
pyridine; 2,6-dimethylpyridine; chromium(VI) oxide; methanol; dmap; palladium diacetate; potassium fluoride; 2,2'-azobis(isobutyronitrile); sulfuric acid; dihydrogen peroxide; tri-n-butyl-tin hydride; tetrabutylammonium trifluoromethylsulfonate; potassium carbonate; potassium hydrogencarbonate; pyridine hydrogenfluoride; triethylamine; lithium hexamethyldisilazane;
In
tetrahydrofuran; methanol; dichloromethane; N,N-dimethyl-formamide; acetone; 1,3,5-trimethyl-benzene; benzene;
DOI:10.1021/ja983013+