Multi-step reaction with 14 steps
1: 98 percent / tetrahydrofuran / 3 h / -75 °C
2: 92 percent / 2,6-lutidine / CH2Cl2 / 0.67 h / -30 °C
3: 82 percent / LiAlH4 / diethyl ether; tetrahydrofuran / 0.5 h / -10 °C
4: 1.) osmium tetroxide; 2.) sodium periodate / 1.) room temp., 15 h, acetone-t.BuOH-H2O; 2.) room temp., 3 h, EtOAc-H2O
5: Ag2CO3-celite, / benzene / 0.75 h / Heating
6: Et3N / benzene / 4 h / Ambient temperature
7: DBU / benzene / 0.5 h / Ambient temperature
8: 4-methylmorpholine N-oxide / osmium tetroxide / acetone; 2-methyl-propan-2-ol; H2O / 12 h / Ambient temperature
9: n-Bu4NF, / tetrahydrofuran / 2 h / 0 °C
10: 59 percent / 10-camphorsulfonic acid / CH2Cl2 / 3 h / Ambient temperature
11: 85 percent / 2,6-lutidine / CH2Cl2 / 18 h / Ambient temperature
12: 98 percent / i-Bu2AlH / toluene / 1 h / -75 °C
13: SnCl2/TrClO4/4A molecular sive / diethyl ether / 2.5 h / 0 °C
14: n-BuNF, / tetrahydrofuran / 3 h / Ambient temperature
With
2,6-dimethylpyridine; sodium periodate; osmium(VIII) oxide; lithium aluminium tetrahydride; TrClO4/4A molecular sive; tetrabutyl ammonium fluoride; diisobutylaluminium hydride; 4-methylmorpholine N-oxide; 1,8-diazabicyclo[5.4.0]undec-7-ene; triethylamine; silver carbonate; tin(ll) chloride;
osmium(VIII) oxide; (1S)-10-camphorsulfonic acid;
In
tetrahydrofuran; diethyl ether; dichloromethane; water; acetone; toluene; tert-butyl alcohol; benzene;
DOI:10.1246/cl.1986.1771