Multi-step reaction with 11 steps
1.1: n-BuLi / tetrahydrofuran; hexane / 0.5 h / -78 °C
1.2: tetrahydrofuran; hexane / -78 - 20 °C
2.1: 63 percent / LiAlH4 / tetrahydrofuran / 1.5 h / Heating
3.1: 9-borabicyclo[3.3.1]nonane dimer / tetrahydrofuran / 0.67 h / sonication
3.2: 71 percent / aq. NaOH; aq. H2O2 / tetrahydrofuran / -5 °C
4.1: Et3N; DMAP / CH2Cl2 / 0 - 20 °C
5.1: 87 percent / NaN3 / dimethylformamide / 20 °C
6.1: H2 / Pd/C / ethyl acetate / 1.5 h / 20 °C / 760.05 Torr
7.1: 826 mg / diethyl phosphorocyanidate; Et3N / dimethylformamide / 0 - 20 °C
8.1: n-BuLi / tetrahydrofuran; hexane / 0.33 h / -78 °C
8.2: 83 percent / tetrahydrofuran; hexane / -78 - 20 °C
9.1: 94 percent / TBAF / tetrahydrofuran / 0 - 20 °C
10.1: DMSO; Et3N; sulfur trioxide*pyridine / CH2Cl2 / 0 - 20 °C
11.1: sodium bis(trimethylsilyl)amide / tetrahydrofuran / 0 - 20 °C
11.2: 333 mg / tetrahydrofuran / 2 h / 0 °C
With
dmap; lithium aluminium tetrahydride; n-butyllithium; sodium azide; diethyl cyanophosphonate; tetrabutyl ammonium fluoride; hydrogen; sodium hexamethyldisilazane; sulfur trioxide pyridine complex; dimethyl sulfoxide; triethylamine; dimeric 9-borabicyclo[3.3.1]nonane;
palladium on activated charcoal;
In
tetrahydrofuran; hexane; dichloromethane; ethyl acetate; N,N-dimethyl-formamide;
11.2: Horner-Wadsworth-Emmons reaction;
DOI:10.1016/j.tet.2004.06.014