Multi-step reaction with 10 steps
1: 95 percent / sodium hydride / tetrahydrofuran / 2 h / Heating
2: 1.) lithium diisopropylamide / 1.) THF, hexanes, 0 deg C, 20 min, 2.) THF, hexanes, room temperature, overnight
3: cerium(III) chloride heptahydrate, sodium borohydride / methanol
4: 99 percent / imidazole / dimethylformamide / Ambient temperature
5: 100 percent / diisobutylaluminum hydride / toluene / 2 h / -78 °C
6: 93 percent / triethylamine, sulfur trioxide-pyridine complex / dimethylsulfoxide; CH2Cl2 / 1.5 h / Ambient temperature
7: 1.) titanium(IV) isopropoxide, 2.) sodium cyanoborohydride / 1.) room temperature, 2 h, 2.) ethanol, 20 h
8: 19.3 mg / tetrabutylammonium fluoride / tetrahydrofuran / Ambient temperature
9: 78 percent / triethylamine, 4-(dimethylamino)pyridine / dimethylformamide / 20 h / Ambient temperature
10: 100 percent / lithium, liq. ammonia / tetrahydrofuran / 4 h / -33 °C
With
1H-imidazole; titanium(IV) isopropylate; dmap; sodium tetrahydroborate; cerium(III) chloride; tetrabutyl ammonium fluoride; ammonia; sulfur trioxide pyridine complex; lithium; sodium hydride; diisobutylaluminium hydride; sodium cyanoborohydride; triethylamine; lithium diisopropyl amide;
In
tetrahydrofuran; methanol; dichloromethane; dimethyl sulfoxide; N,N-dimethyl-formamide; toluene;
DOI:10.1021/jo971935+