Multi-step reaction with 11 steps
1: 46 percent / SeO2 / 12 h / 150 - 155 °C
2: 1.) Mg / 1.) THF, reflux, 2.) THF, from -15 deg C to RT
3: 100 percent / 2,6-lutidine / CH2Cl2 / -10 - 20 °C
4: 87 percent / 80percent MCPBA / CH2Cl2 / 12 h / 0 °C
5: 99 percent / Et3N, TFAA / tetrahydrofuran / 0.5 h / 0 °C
6: 66 percent / pyridine / 13 h / -20 - 20 °C
7: 82 percent / Et3N, Pd(OAc)2, dppp / dimethylsulfoxide / 3 h / 65 °C
8: 85 percent / DIBAL / CH2Cl2 / 1 h
9: 99 percent / NaBH4 / methanol / 0.25 h
10: 37 percent / CBr4, Ph3P / CH2Cl2 / 2 h / 0 °C
11: 95 percent / K2CO3 / dimethylformamide / 0.5 h
With
pyridine; 2,6-dimethylpyridine; palladium diacetate; sodium tetrahydroborate; selenium(IV) oxide; carbon tetrabromide; 1,3-bis-(diphenylphosphino)propane; diisobutylaluminium hydride; potassium carbonate; magnesium; triethylamine; 3-chloro-benzenecarboperoxoic acid; triphenylphosphine; trifluoroacetic anhydride;
In
tetrahydrofuran; methanol; dichloromethane; dimethyl sulfoxide; N,N-dimethyl-formamide;
DOI:10.1021/jm00074a012