Multi-step reaction with 7 steps
1: 65 percent / n-BuLi / hexane; diethyl ether / 1.) room temperature, 2 h, 2.) -78 deg C -> 0 deg C, 1 h
2: 70 percent / N,N-diisopropylethylamine / dimethylformamide
3: 80 percent / N,N-diisopropylethylamine / tetrahydrofuran / 72 h
4: 94 percent / Bu4NF / tetrahydrofuran / 0.25 h
5: 1.) N,N-diisopropylethylamine, 3.) I2, pyridine / 1.) THF, -78 deg C, 5 min; 0 deg C, 100 min, 2.) -78 deg C, 1 h, 3.) THF, H2O, room temperature, 5 min
6: 46 °C
7: 63 percent / Ag2O / acetonitrile / 48 h / 50 °C
With
pyridine; n-butyllithium; tetrabutyl ammonium fluoride; iodine; N-ethyl-N,N-diisopropylamine; silver(l) oxide;
In
tetrahydrofuran; diethyl ether; hexane; N,N-dimethyl-formamide; acetonitrile;