Multi-step reaction with 11 steps
1: diethyl ether / 0.5 h / -10 °C
2: NaBH4 / ethanol / 0.5 h / 0 °C
3: 0.5M (CO2H)2 / 0.5 h / Ambient temperature
4: 57 percent / H2 / Pd-C / ethanol / Ambient temperature
5: 81 percent / p-TsOH / benzene / Heating
6: 1.) NaH / 1.) THF, 3 h, room temp., 2.) 40 h, room temp.
7: 80 percent / biphenyl / 16 h / 210 °C
8: 79 percent / LiAlH4 / tetrahydrofuran / Ambient temperature
9: 1.) o-C6H4(NO2)SeCN, n-Bu3P, 2.) 30percent H2O2 / 1.) THF, room temp., 0.5 h, 2.) THF, room temp., 16 h
10: 1N HCl / tetrahydrofuran / 0.5 h / 60 °C
11: 1.) LDA, ZnCl2 / 2.) p-TsOH / 1.) -78 deg C to -0 deg C, 2.) THF, H2O, 60 deg C, 0.5 h
With
hydrogenchloride; sodium tetrahydroborate; lithium aluminium tetrahydride; ortho-nitrophenyl selenocyanate; tributylphosphine; hydrogen; dihydrogen peroxide; oxalic acid; sodium hydride; zinc(II) chloride; lithium diisopropyl amide;
palladium on activated charcoal; toluene-4-sulfonic acid;
In
tetrahydrofuran; biphenyl; diethyl ether; ethanol; benzene;
DOI:10.1016/S0040-4039(01)84607-4