Multi-step reaction with 26 steps
1: 70 percent / pyridine / CH2Cl2 / 2.5 h / Ambient temperature
2: 89 percent / NaI, Ac2O / 60 °C
3: 89 percent / AIBN / toluene
4: 100 percent / NEt3, H2O / methanol
5: NEt3 / CH2Cl2
6: Bu3SnCl, NaCNBH3, AIBN
7: 78 percent / H2O2, KHCO3, KF
9: 1.) O3, 2.) Me2S / 1.) MeOH
10: K2CO3 / methanol / 24 h
11: KHMDS
12: 78 percent / Bu2SnO, NBS
13: 88 percent / NaBH(OAc)3 / ethyl acetate
14: 85 percent / NEt3, DMAP / CH2Cl2
15: 82 percent / Ag2O
16: aq. CH3COOH / tetrahydrofuran / 12 h / 90 °C
17: BuLi / tetrahydrofuran
18: 95 percent / pyridine
19: (n-Bu)4NF / tetrahydrofuran
20: pyridinium dichromate / dimethylformamide
22: aq. CH3COOH / tetrahydrofuran / 90 °C
23: pyridinium dichromate / dimethylformamide
25: 1.) O3, 2.) Me2S
With
pyridine; dmap; potassium fluoride; N-Bromosuccinimide; dipyridinium dichromate; n-butyllithium; dimethylsulfide; 2,2'-azobis(isobutyronitrile); tributyltin chloride; tetrabutyl ammonium fluoride; water; dihydrogen peroxide; acetic anhydride; potassium hexamethylsilazane; sodium tris(acetoxy)borohydride; di(n-butyl)tin oxide; sodium cyanoborohydride; potassium carbonate; potassium hydrogencarbonate; ozone; acetic acid; triethylamine; sodium iodide; silver(l) oxide;
In
tetrahydrofuran; methanol; dichloromethane; ethyl acetate; N,N-dimethyl-formamide; toluene;
DOI:10.1021/jo00094a009