Multi-step reaction with 14 steps
1: 95 percent / imidazole / dimethylformamide / 0 °C
2: 1.) HgO, HgCl2; 2.) CuSO4, dl-camphorsulfonic acid / 1.) aq. acetone, 6 h; 2.) acetone, RT, 4 h
3: pyridinium perchlorate, 3A molecular sieve / CH2Cl2 / 4 h / Ambient temperature
4: benzene / 4 h / Heating
5: H2 / 10percent Pd/C / ethyl acetate / 48 h / Ambient temperature
6: 88 percent / LiAlH4 / tetrahydrofuran / 1 h / Ambient temperature
7: 98 percent / pyridine / 3 h / 0 °C
8: 96 percent / NaN3 / dimethylformamide / 6 h / 50 °C
9: 95 percent / Bu4NF / tetrahydrofuran / 3 h / Ambient temperature
10: 94 percent / pyridine / 3 h / 0 °C
11: H2 / Pd black / ethanol / Ambient temperature
12: NaOAc / ethanol / 10 h / Heating
13: aq. NaHCO3 / ethyl acetate / 0 °C
14: 2.) NaBH4 / 1.) 80percent aq. AcOH, 50 deg C, 12 h; 2.) EtOH
With
1H-imidazole; sodium tetrahydroborate; lithium aluminium tetrahydride; sodium azide; 3 A molecular sieve; camphor-10-sulfonic acid; tetrabutyl ammonium fluoride; hydrogen; sodium acetate; pyridinium perchlorate; sodium hydrogencarbonate; copper(II) sulfate; mercury dichloride; mercury(II) oxide;
palladium on activated charcoal; palladium;
In
tetrahydrofuran; pyridine; ethanol; dichloromethane; ethyl acetate; N,N-dimethyl-formamide; benzene;
DOI:10.1016/0040-4020(94)01009-O