Multi-step reaction with 15 steps
1: 63.1 percent / BF3*Et2O / benzene / 0.17 h / Ambient temperature
2: LiAlH4 / tetrahydrofuran / 2 h / 0 °C
3: 96 percent / hydrogen / 10percent Pd/C / ethyl acetate / 24 h
4: imidazole / dimethylformamide / Ambient temperature
5: 1.) sodium hydride / 1.) THF, 2.) THF, DMF, 6.5 h
6: n-Bu4NF / tetrahydrofuran; acetonitrile
7: 1.) dimethylsulfoxide, oxalyl chloride 2.) triethylamine / 1.) CH2Cl2, -78 deg C, 15 min; 2.) CH2Cl2, -78 to 0 deg C
8: CH2Cl2 / -20 - 20 °C
9: 79 percent / (+/-)-10-camphorsulfonic acid / 50 °C
10: diisobutylaluminum hydride / toluene / 1 h / -78 °C
11: 91 percent / pyridinium p-toluenesulfonate / CH2Cl2 / 5 h / Ambient temperature
12: 72 percent / benzenesulfinate, potassium iodide / dimethylformamide / 10 h / 100 °C
13: 54 percent / bromine, sodium acetate / acetic acid / 0.5 h / 0 °C
14: 1.) n-butyllithium / 1.) THF, -78 deg C, 15 min; 2.) THF, -78 deg C, 15 min.
15: 1.) CuI / 1.) ether, 0 deg C, 20 min; 2.) ether, -78 deg C, 15 min.
With
1H-imidazole; copper(l) iodide; lithium aluminium tetrahydride; n-butyllithium; oxalyl dichloride; camphor-10-sulfonic acid; boron trifluoride diethyl etherate; tetrabutyl ammonium fluoride; hydrogen; bromine; phenylsulphinate anion; sodium acetate; pyridinium p-toluenesulfonate; sodium hydride; diisobutylaluminium hydride; dimethyl sulfoxide; triethylamine; potassium iodide;
palladium on activated charcoal;
In
tetrahydrofuran; dichloromethane; acetic acid; ethyl acetate; N,N-dimethyl-formamide; toluene; acetonitrile; benzene;
DOI:10.1016/S0040-4020(01)86915-5