Multi-step reaction with 9 steps
1: Ph3P, I2, Et3N / CH2Cl2 / 0 - 22 °C
2: 1.) n-BuLi, 2.) Ti(OiPr)4, t-BuOOH, (+)-dicyclohexyl tartrate, 4A MS / 1.) THF, -78 deg C
3: 1.) Cp2ZrCl2, 2.) CuBr*Me2S / 1.) Et2O, 22 deg C, 18 h, 2.) THF, -20 deg C to 22 deg C, 2 h; -4 deg C, 30 h
4: 87 percent / Et3N / CH2Cl2 / -78 °C
5: 95 percent / NH3, Na / tetrahydrofuran / 0.75 h / -40 °C
6: 85 percent / DCC, HOBT / CH2Cl2 / 12 h / 22 °C
7: 85 percent / HF / acetonitrile / 22 °C
8: 92 percent / AgClO4, SnCl2, 4A MS / diethyl ether / 1.) -15 deg C, 1 h, 2.) 0 deg C, 1 h, 3.) 22 deg C, 2 h
9: 92 percent / Mo(CHCMe2Ph)(N(2,6-(i-Pr)2C6H3))(OCMe(CF3)2)2 / benzene / 4 h / 22 °C
With
titanium(IV) isopropylate; tert.-butylhydroperoxide; n-butyllithium; zirconocene dichloride; copper(I) bromide dimethylsulfide complex; Mo(CHCMe2Ph)2; (+)-dicyclohexyl tartrate; hydrogen fluoride; ammonia; iodine; silver perchlorate; sodium; benzotriazol-1-ol; triethylamine; dicyclohexyl-carbodiimide; triphenylphosphine; tin(ll) chloride;
In
tetrahydrofuran; diethyl ether; dichloromethane; acetonitrile; benzene;
DOI:10.1021/ja972191k