Multi-step reaction with 7 steps
1.1: n-BuLi / tetrahydrofuran; hexane / 0.5 h / 0 °C
1.2: tetrahydrofuran; hexane / 10 h / 20 °C
2.1: 3.10 g / aq. HCl / CHCl3 / 4 h / 20 °C
3.1: bis(cyclopentadienyl) zirconium / CH2Cl2 / 0.17 h
3.2: CH2Cl2 / 12 h / 20 °C
3.3: 100 percent / tetrahydrofuran; CH2Cl2 / 12 h / -78 - 20 °C
4.1: 6.96 g / imidazole / CH2Cl2 / 3 h / 20 °C
5.1: 95 percent / triethylamine; dimethylaminopyridine / CH2Cl2 / 96 h / 0 - 20 °C
6.1: magnesium; iodine / diethyl ether / 12 h / Heating
6.2: CuCN / diethyl ether / 1 h / -20 °C
6.3: 90 percent / diethyl ether / 12 h / -20 - 20 °C
7.1: 85 percent / oxygen; N,N-dimethylacetamide; aq. PdCl2 / Cu(OAc)2 / 168 h
With
1H-imidazole; hydrogenchloride; dmap; n-butyllithium; bis(cyclopentadienyl)dihydrozirconium; N,N-dimethyl acetamide; iodine; oxygen; magnesium; triethylamine; palladium dichloride;
copper diacetate;
In
tetrahydrofuran; diethyl ether; hexane; dichloromethane; chloroform;
DOI:10.1021/ja046084j