Multi-step reaction with 12 steps
1: 1.) Me4NOH / 1.) MeOH, EtOH, 2.) DMF, 3 h
2: 93 percent / SOCl2 / 23 h / Ambient temperature
3: 84 percent / triethylamine / dimethylformamide / 2.5 h / 0 °C
4: 97 percent / aq. LiOH / tetrahydrofuran / 2.5 h / Ambient temperature
5: 66 percent / PCl5 / tetrahydrofuran / 1.75 h / 0 °C
6: 82 percent / Bu4NF / tetrahydrofuran / 0.5 h
7: 94 percent / triethylamine / CH2Cl2 / 1.5 h / Ambient temperature
8: 57 percent / NaH / dimethylsulfoxide / 2 h
9: 100 percent / H2, HOAc / Pd / ethanol; H2O; methanol / 48 h
10: 87 percent / NaHCO3 / tetrahydrofuran; H2O / 18 h
11: 90 percent / K2CO3 / CHCl3; methanol / 37 h / Heating
12: 1.) Bu4NF, 2.) NaBH4 / 1.) THF, 2 h, 2.) THF, CH3OH, 1 h
With
lithium hydroxide; sodium tetrahydroborate; thionyl chloride; phosphorus pentachloride; tetramethyl ammoniumhydroxide; tetrabutyl ammonium fluoride; hydrogen; sodium hydride; sodium hydrogencarbonate; potassium carbonate; acetic acid; triethylamine;
palladium;
In
tetrahydrofuran; methanol; ethanol; dichloromethane; chloroform; water; dimethyl sulfoxide; N,N-dimethyl-formamide;
DOI:10.1021/jo961114p