Multi-step reaction with 8 steps
1: 1) 1,55 M BuLi / 1) THF,hexane, -30 deg C, 30 min, 2) THF, hexane, -70 deg C, 1 h; -60 deg C,2 h
2: NaI, NaBr, 1-methylpyrrolidin-2-one / 6.5 h / 130 °C
3: 24 percent / H2 / PtO2 / ethanol / 18 h / 3620.04 Torr / Ambient temperature
4: K2CO3 / 1,2-dichloro-ethane / Heating
5: methanolic HCl / methanol / Heating
6: 50 percent / NaHCO3 / dimethylformamide / 4 h / 100 °C
7: lithium methanethiolate / dimethylformamide / 3 h / 130 °C
8: 28 percent / H2 / PtO2 / ethanol / 760 Torr / Ambient temperature
With
1-methyl-pyrrolidin-2-one; hydrogenchloride; n-butyllithium; hydrogen; lithium methanethiolate; sodium hydrogencarbonate; potassium carbonate; sodium iodide; sodium bromide;
platinum(IV) oxide;
In
methanol; ethanol; 1,2-dichloro-ethane; N,N-dimethyl-formamide;
DOI:10.1039/P19890001177