Multi-step reaction with 12 steps
1: 1) NaH (50percent in oil) / 1) DMF, 1 h, RT, 2) DMF, 5 h, RT
2: 85 percent / LiAlH4, AlCl3 / diethyl ether; CH2Cl2 / 2 h / Heating
3: 85 percent / tris(triphenylphosphine)rhodium(I) chloride, 1,4-diazabicyclo<2.2.2>octane / ethanol; toluene / 6 h / Heating
4: 1) NaH (50percent in oil) / 1) DMF, 1 h, RT 2) DMF, 5 h, RT
5: 83 percent / tris(triphenylphosphine)rhodium(I) chloride, 1,4-diazabicyclo<2.2.2>octane / ethanol; H2O; toluene / 5 h / Heating
6: 83 percent / silver triflate mol. sieves 4A / 1,2-dichloro-ethane / 1) -20 deg C, 2) 0 deg C, 2 h
7: 94 percent / 1M NaOMe / methanol / 1 h / Heating
8: 87 percent / p-TsOH / acetonitrile / 5 h / Ambient temperature
9: 1) NaH (50percent in oil) / 1) DMF, 1 h, RT, 2) DMF, 5 h, RT
10: 80 percent / LiAlH4, AlCl3 / diethyl ether; CH2Cl2 / 2 h / Heating
11: 76 percent / PdCl2, NaOAc / aq. acetic acid / 8 h / Ambient temperature
12: 1) silver triflate, mol. sieves 4A 2) 1M NaOMe / 1) toluene, nitromethane, 0 deg C, 30 min 2) MeOH, 5 h, RT
With
1,4-diaza-bicyclo[2.2.2]octane; Wilkinson's catalyst; lithium aluminium tetrahydride; aluminium trichloride; 4 A molecular sieve; sodium methylate; sodium acetate; silver trifluoromethanesulfonate; sodium hydride; toluene-4-sulfonic acid; palladium dichloride;
In
methanol; diethyl ether; ethanol; dichloromethane; water; acetic acid; 1,2-dichloro-ethane; toluene; acetonitrile;
DOI:10.1016/S0008-6215(00)90436-1