Multi-step reaction with 11 steps
1: 1.) LDA / 1.) THF, hexane, -78 deg C, 30 min, 2.) THF, hexane, -78 deg C, 30 min
2: NaH, EtOH / tetrahydrofuran / 3 h / 0 °C
3: DDQ / benzene / 0.5 h / Ambient temperature
4: 1.) DEAD, Ph3P / 1.) THF, -78 deg C, 15 min, 2.) THF, overnight
5: 1.) t-BuOK / 1.) THF, 30 min, 2.) THF, RT, 30 min
6: 1.) BH3*Me2S, 2.) aq. NaOH, 30percent aq. H2O2 / 1.) THF, 0 deg C, 3 h, 2.) THF, 1 h
7: 1.) DMSO, (COCl)2, 2.) Et3N / 1.) CH2Cl2, -78 deg C, 30 min, 2.) CH2Cl2, 50 min
8: 1.) BuLi / 1.) THF, Et2O, hexane, -78 deg C, 5 min, 2.) THF, Et2O, hexane, 60 min
9: 80 percent / Ph3BiCO3, pyridine / toluene / 48 h / 80 °C
10: 1.) LDA / 1.) THF, hexane, -78 deg C, 70 min, 2.) THF, hexane, -78 deg C, 5 min
11: 50 percent / Ph3SnH, Et3B, air / benzene; hexane / 0.17 h / Ambient temperature
With
pyridine; sodium hydroxide; n-butyllithium; oxalyl dichloride; air; ethanol; triethyl borane; dimethylsulfide borane complex; Ph3BiCO3; triphenylstannane; potassium tert-butylate; dihydrogen peroxide; sodium hydride; dimethyl sulfoxide; triethylamine; triphenylphosphine; 2,3-dicyano-5,6-dichloro-p-benzoquinone; lithium diisopropyl amide; diethylazodicarboxylate;
In
tetrahydrofuran; hexane; toluene; benzene;
DOI:10.1021/ja00104a009