Multi-step reaction with 13 steps
1.1: LiAlH4 / tetrahydrofuran / 43 h / Heating
2.1: 81 percent / SO3*Py; Et3N; DMSO / CH2Cl2 / 1.5 h / -10 - -4 °C
3.1: DBU / CH2Cl2 / 62 h / 20 °C
4.1: NaBH4 / methanol / 0.25 h / -10 °C
5.1: 98 percent / pyridine / 24 h / 0 °C
6.1: 80 percent / LiAlH4 / tetrahydrofuran / 4 h / Heating
7.1: 9-BBN / tetrahydrofuran / 48 h / Heating
7.2: 95 percent / 30 percent H2O2; 6 N aq. NaOH / ethanol / 1.5 h / 55 °C
8.1: 93 percent / imidazole; DMAP / dimethylformamide / 16 h / 20 °C
9.1: cyclohexene / 20 percent Pd(OH)2/C / ethanol / 6 h / Heating
10.1: 94 percent / I2; PPh3; imidazole / tetrahydrofuran / 29 h / 20 °C
11.1: NiCl2*6H2O; pyridine; Zn / 0.5 h / 65 °C
11.2: 88 percent / pyridine / 2 h / 20 °C
12.1: 86 percent / tetrahydrofuran; diethyl ether / 2 h / 0 °C
13.1: 100 percent / TBAF / tetrahydrofuran / 16 h / 20 °C
With
pyridine; 1H-imidazole; dmap; sodium tetrahydroborate; lithium aluminium tetrahydride; 9-borabicyclo[3.3.1]nonane dimer; pyridine-SO3 complex; tetrabutyl ammonium fluoride; iodine; dimethyl sulfoxide; 1,8-diazabicyclo[5.4.0]undec-7-ene; triethylamine; triphenylphosphine; nickel dichloride; zinc; cyclohexene;
palladium dihydroxide;
In
tetrahydrofuran; methanol; diethyl ether; ethanol; dichloromethane; N,N-dimethyl-formamide;
1.1: Reduction / 2.1: Oxidation / 3.1: Isomerization / 4.1: Reduction / 5.1: Tosylation / 6.1: reductive cleavae / 7.1: hydroboration / 7.2: Oxidation / 8.1: silylation / 9.1: debenzylation / 10.1: Iodination / 11.1: complexation / 11.2: Substitution / 12.1: Grignard reaction / 13.1: desilylation;
DOI:10.1021/jm980736v