Multi-step reaction with 4 steps
1: 1) SOCl2, Et3N, 2) RuCl3*3H2O, NaIO4 / 1) CH2Cl2, room temp., 1 h, 2) MeCN, H2O, room temp., 60 min.
2: 1) NaN3, 2) 20 percent aq. H2SO4 / 1) acetone, H2O, room temp., 1 h, 2) Et2O, room temp., 16 h
3: 82 percent / i-Pr2NEt, 4-(N,N-dimethylamino)pyridine / CH2Cl2 / 18 h / Ambient temperature
4: 89 percent / PPh3 / tetrahydrofuran; H2O / 18 h / 60 °C
With
dmap; ruthenium trichloride; sodium periodate; thionyl chloride; sodium azide; sulfuric acid; triethylamine; N-ethyl-N,N-diisopropylamine; triphenylphosphine;
In
tetrahydrofuran; dichloromethane; water;
DOI:10.1021/jo00304a024