Multi-step reaction with 10 steps
1: 77 percent / Mg / tetrahydrofuran / 1 h / Heating
2: 79 percent / TMSOTf / 1,2-dichloro-ethane / 5 h / 45 - 50 °C
3: 94 percent / NEt3 / dimethylformamide / 10 h / Ambient temperature
4: methylhydrazine / CH2Cl2 / 0 deg C to RT
5: CH2Cl2 / 0 °C
6: Cl3COC(O)Cl, NEt3 / CH2Cl2 / -50 °C
7: Bu3SnH, AIBN / benzene / Heating
8: 1) BH3*Me2S, 2) H2O2, NaOH / 1) THF, 0 deg C, 2) H2O, 0 deg C
9: 85 percent / pyridine / Ambient temperature
10: 100 percent / NaI / acetone / 2 h / Heating
With
pyridine; sodium hydroxide; 2,2'-azobis(isobutyronitrile); trimethylsilyl trifluoromethanesulfonate; dimethylsulfide borane complex; dihydrogen peroxide; tri-n-butyl-tin hydride; magnesium; triethylamine; methylhydrazine; sodium iodide; trichloromethyl chloroformate;
In
tetrahydrofuran; dichloromethane; 1,2-dichloro-ethane; N,N-dimethyl-formamide; acetone; benzene;
DOI:10.1248/cpb.39.2813