Multi-step reaction with 8 steps
1: 70 percent / toluene-p-sulphonic acid, triethylamine / dimethylformamide / 0.67 h / 50 °C
2: 81.6 percent / trifluoromethansulphonic acid / CCl4; cyclohexane / 18 h / Ambient temperature
3: 80 percent / Na-methoxide / methanol
4: 78 percent / tetramethylurea, Ag trifluoromethanesulphonate / CH2Cl2 / 3 h / -70 °C / slow warming to r.t.
5: 86 percent / Na methoxide / methanol / 96 h / 5 °C
6: 75 percent / 4 Angstroem mol. sieve, 2,4,6-trimethylpyridine, Ag trifluoromethanesulphonate / CH2Cl2 / -70 deg C, 2 h; 20 deg C, 16 h + 24 h
8: 1) tris(triphenylphosphine)Rh(I)chloride; 2) mercuric oxide, mercuric chloride / 1) ethanol, H2O, reflux, 13 h; 2) acetone, H2O, 1 h
With
2,4,6-trimethyl-pyridine; Wilkinson's catalyst; trifluorormethanesulfonic acid; 4 A molecular sieve; sodium methylate; silver trifluoromethanesulfonate; toluene-4-sulfonic acid; triethylamine; tetramethylurea; mercury dichloride; mercury(II) oxide;
In
methanol; tetrachloromethane; dichloromethane; cyclohexane; N,N-dimethyl-formamide;