Multi-step reaction with 14 steps
1: 83 percent / lithium aluminum hydride / tetrahydrofuran / 1.) -70 deg C, 75 min, 2.) 3 h
2: 62 percent / triphenylphosphine, diethyl azodicarboxylate / tetrahydrofuran / 1.) 0 deg C, 45 min, 2.) room temperature, 30 min
3: 1.) ozone, 2.) sodium borohydride / methanol / 1.) -78 deg C, 43 min
4: 1.) o-nitrophenyl selenocyanate, tri-n-butylphosphine, 2.) aq. hydrogen peroxide / 1.) THF, 0 deg C, 15 min; room temperature, 45 min, 2.) 0 deg C, 20 min; 30 min
5: 80 percent / diisobutylaluminum hydride / toluene / -70 - -65 °C
6: 1 percent / CH2Cl2 / 1.) 0 deg C, 15 min, 2.) 30 min
8: 68 percent / tri-n-butyltin hydride / toluene / 16.75 h / Heating
9: 95 percent / Lawesson's reagent / toluene / 10 h / 100 °C
10: 2.) triphenylphosphine, triethylamine / 1.) ether, room temperature, 46 h, 2.) dichloromethane, 0 deg C, 15 min
11: 29 percent / bromocresol green, sodium cyanoborohydride, hydrochloric acid, pH 4 / methanol / 0.5 h
12: 97 percent / lithium aluminum hydride / tetrahydrofuran / 1 h / Ambient temperature
13: 93 percent / imidazole / dimethylformamide / 36 h / Ambient temperature
14: 1.) disiamylborane, 2.) aq. sodium hydroxide, aq. hydrogen peroxide / 1.) THF, 0 deg C, 30 min, 2.) room temperature, 30 min
With
Lawessons reagent; 1H-imidazole; hydrogenchloride; sodium hydroxide; sodium tetrahydroborate; lithium aluminium tetrahydride; ortho-nitrophenyl selenocyanate; tributylphosphine; dihydrogen peroxide; tri-n-butyl-tin hydride; bromocresol green; bis-(1,2-dimethylpropyl)borane; diisobutylaluminium hydride; sodium cyanoborohydride; ozone; triethylamine; triphenylphosphine; diethylazodicarboxylate;
In
tetrahydrofuran; methanol; dichloromethane; N,N-dimethyl-formamide; toluene;
DOI:10.1021/ja00343a030