Multi-step reaction with 11 steps
1: 95 percent / Ph3CBF4 / diethyl ether / 1 h / 0 °C
2: 1.) OsO4, NMO; 2.) Pb(OAc)4, Na2CO3; 3.) LiAlH4 / 1.) acetone/water, 23 deg C, 4 h; 2.) CH2Cl2, -78 deg C, 0.25 h; 3.) THF, 23 deg C, 3 h
3: Pb(OAc)4, Na2CO3 / CH2Cl2 / 0.25 h / -78 °C
4: tetrahydrofuran / - 78 deg C, 0.5 h, 23 deg C, 12 h
5: 1.) (COCl)2/DMSO; 2.) Et3N / CH2Cl2 / 1.) -78 deg C, 1 h; 2.) -78 to 23 deg C, 0.3 h
6: tetrahydrofuran; toluene / -78 deg C, 0.1 h; -40 deg C, 1 h; 0 deg C, 0.5 h
7: 99 percent / 0.5percent HCl / methanol / 12 h / 23 °C
8: 87 percent / DMAP/Et3N / CH2Cl2 / 48 h / -28 °C
9: 78 percent / NaOMe / methanol / 3 h / 0 °C
10: 82 percent / DDQ / CH2Cl2; H2O / 3 h / 23 °C
11: 80 percent / DEAD/Ph3P / benzene / 2 h / 23 °C
With
lead(IV) acetate; hydrogenchloride; dmap; osmium(VIII) oxide; lithium aluminium tetrahydride; N-methyl-2-indolinone; oxalyl dichloride; sodium methylate; trityl tetrafluoroborate; sodium carbonate; dimethyl sulfoxide; triethylamine; triphenylphosphine; 2,3-dicyano-5,6-dichloro-p-benzoquinone; diethylazodicarboxylate;
In
tetrahydrofuran; methanol; diethyl ether; dichloromethane; water; toluene; benzene;
DOI:10.1016/S0040-4039(00)73491-5