Multi-step reaction with 13 steps
1: 88 percent / baker's yeast / H2O
2: 98 percent / Huenig base / CHCl3 / Heating
3: 96 percent / Super-Hydride / tetrahydrofuran / 0 °C
4: 95 percent / n-Bu3P, pyridine
5: 95 percent / Raney Ni (W-4) / ethanol
6: conc. HCl / methanol
7: NaH / dimethylformamide; benzene / 80 °C
8: 96 percent / Lawesson's reagent / tetrahydrofuran / Heating
9: 83 percent / PPh3, Et3N / acetonitrile / Heating
10: 99 percent / NaBH3CN, TFA / CH2Cl2 / 0 °C
11: H2 / Pd(OH)2 / methanol
12: K2CO3 / CH2Cl2; H2O
13: 92 percent / Super-Hydride
With
Lawessons reagent; pyridine; hydrogenchloride; baker's yeast; tributylphosphine; Raney Ni (W-4); hydrogen; sodium hydride; lithium triethylborohydride; sodium cyanoborohydride; potassium carbonate; triethylamine; N-ethyl-N,N-diisopropylamine; triphenylphosphine; trifluoroacetic acid;
palladium dihydroxide;
In
tetrahydrofuran; methanol; ethanol; dichloromethane; chloroform; water; N,N-dimethyl-formamide; acetonitrile; benzene;
DOI:10.1021/jo990397t