Multi-step reaction with 13 steps
1: 1) TiCl4 / 1) CH2Cl2, -78 deg C, 5 min, 2) CH2Cl2, -78 deg C, 30 min
2: 91 percent / LiAlH4 / diethyl ether / -78 °C
3: 92 percent / p-TsOH*H2O / 10 h / Ambient temperature
4: 1) BF3*THF, 2) 30percent H2O2, NaOH / 1) THF, 0 deg C, 30 min, 2) THF, 12 h, RT
5: 1) (COCl)2, DMSO, 2) Et3N / 1) CH2Cl2, -78 deg C, 10 min, 2) CH2Cl2, -78 deg C to RT
6: 86 percent / NaBH4 / methanol / 0.33 h / -25 °C
7: 84 percent / BF3*Et2O / CH2Cl2 / -78 - 0 °C
8: 87 percent / d,l-10-camphorsulfonic acid*H2O / 6 h / Ambient temperature
9: 83 percent / NBS, H2O / acetone / 0.03 h / -25 °C
10: 57 percent / BF3*Et2O / CH2Cl2 / 0.25 h / -78 °C
11: Li di-sec-butylborohydride / tetrahydrofuran / 0.08 h / -78 °C
12: 1) m-chloroperbenzoic acid, 2) Et3N, Me2S / 1) toluene, 0 deg C, 10 min, 3) toluene, reflux,
13: 58 percent / n-Bu4NF / tetrahydrofuran / 0.75 h / -15 °C
With
sodium hydroxide; sodium tetrahydroborate; N-Bromosuccinimide; lithium aluminium tetrahydride; oxalyl dichloride; boron trifluoride-tetrahydrofuran complex; dimethylsulfide; lithium di-n-2-methyl-1-propylborohydride; boron trifluoride diethyl etherate; 10-camphorsufonic acid; tetrabutyl ammonium fluoride; water; dihydrogen peroxide; titanium tetrachloride; toluene-4-sulfonic acid; dimethyl sulfoxide; triethylamine; 3-chloro-benzenecarboperoxoic acid;
In
tetrahydrofuran; methanol; diethyl ether; dichloromethane; acetone;
DOI:10.1021/ja00237a037