Multi-step reaction with 6 steps
1: 84 percent / 1.6M butyllithium / tetrahydrofuran; hexane / 1.) -78 deg C - 0 deg C, 55 min, 2.) 0 deg C, 1 h, then RT, 2 h
2: triethylamine / tetrahydrofuran / -78 deg C - 0 deg C, 1 h
3: 1.6M nBuLi in hexane / tetrahydrofuran / -78 - 21 °C
4: 1.) CuBr-Me2S, methyl sulfide, 2.) N-bromosuccinimide / 1.) THF, ether, 0 deg C, 2 h, then RT, 0.5 h, 2.) THF, -78 deg C, 2, h, then 0 deg C, 0.5 h
5: 78 percent / tetramethylguanidinium azide / acetonitrile / 120 h / Ambient temperature
6: 72 percent / LiOH*H2O, 30percent H2O2 / tetrahydrofuran; H2O / 2 h / 0 °C
With
lithium hydroxide; N-Bromosuccinimide; n-butyllithium; dimethylsulfide; dihydrogen peroxide; triethylamine; tetramethylguanidinum azide;
In
tetrahydrofuran; hexane; water; acetonitrile;
DOI:10.1016/S0040-4020(01)86957-X