Multi-step reaction with 7 steps
1: 74 percent / DMAP, 2,6-lutidine / CH2Cl2; tetrahydrofuran / -78 - 0 °C
2: 84 percent / Pd(OAc)2, dppp, Et3N / dimethylsulfoxide / 5 h / 70 °C
3: 59 percent / LiAlH4 / tetrahydrofuran / 3 h / Ambient temperature
4: 45 percent / LiN(TMS)2, DMAP / tetrahydrofuran / Ambient temperature
5: 77 percent / MnO2 / toluene / 0.67 h / Heating
6: 98 percent / NaClO2, 2-methyl-2-butene, KH2PO4 / 2-methyl-propan-2-ol; H2O / Ambient temperature
7: 92 percent / DBU / dimethylformamide / 20 h / Ambient temperature
With
2,6-dimethylpyridine; dmap; manganese(IV) oxide; palladium diacetate; sodium chlorite; potassium dihydrogenphosphate; lithium aluminium tetrahydride; 2-methyl-but-2-ene; 1,3-bis-(diphenylphosphino)propane; 1,8-diazabicyclo[5.4.0]undec-7-ene; triethylamine; lithium hexamethyldisilazane;
In
tetrahydrofuran; dichloromethane; water; dimethyl sulfoxide; N,N-dimethyl-formamide; toluene; tert-butyl alcohol;
DOI:10.1016/S0968-0896(98)00140-0