Multi-step reaction with 12 steps
1: 74 percent / NaH
2: 1.) dimethyldioxirane / 1.) acetone/CH2Cl2, 2.) room temperature
3: DMAP, pyridine
4: 91 percent / TBAF / tetrahydrofuran; ethyl acetate
5: 93 percent / pyridine, DMAP
6: 94 percent / KI / dimethylformamide / 2 h / 100 °C
7: 97 percent / AgF, pyridine / 24 h / Ambient temperature
8: 1.) HgCl2, 2.) MsCl, DMAP, pyridine / 1.) acetone/water, reflux, 4 h, 2.) room temperature, 5 h
9: 92 percent / NaBH4, CeCl3 / ethanol / 0.17 h / -78 °C
10: 98 percent / benzene / Heating
11: K2CO3 / methanol
12: 85 percent / PDC / acetic acid; ethyl acetate / Ambient temperature
With
pyridine; dmap; sodium tetrahydroborate; dipyridinium dichromate; cerium(III) chloride; tetrabutyl ammonium fluoride; 3,3-dimethyldioxirane; silver fluoride; sodium hydride; potassium carbonate; methanesulfonyl chloride; potassium iodide; mercury dichloride;
In
tetrahydrofuran; methanol; ethanol; acetic acid; ethyl acetate; N,N-dimethyl-formamide; benzene;
DOI:10.1016/S0040-4039(00)77001-8