Multi-step reaction with 6 steps
1: 19 percent / AgOSO2CF3, SnCl2 / CCl4 / molecular sieves; -20 deg, 30 min, then 0 deg C, 30 min, then room temp., 2h
2: 78 percent / N-bromosuccinimide / acetonitrile; H2O / 0.5 h / 60 °C
3: 4.23 g / t-BuOK / 2-methyl-propan-2-ol; tetrahydrofuran / 0 deg C, 2h, then room temp., 1h
4: DBU / toluene / 0 deg C, 2h, then room temp., 30 min.
5: 99 percent / (Me2N)3P, CCl4 / tetrahydrofuran / -78 deg C -> room temp. (3h)
6: 71 percent / Hg(CN)2, HgBr2 / CCl4 / 72 h / 30 °C / molecular sieves
With
tetrachloromethane; N-Bromosuccinimide; potassium tert-butylate; silver trifluoromethanesulfonate; mercury(II) cyanide; 1,8-diazabicyclo[5.4.0]undec-7-ene; mercury dibromide; tin(ll) chloride; Hexamethylphosphorous triamide;
In
tetrahydrofuran; tetrachloromethane; water; toluene; acetonitrile; tert-butyl alcohol;
DOI:10.1016/S0040-4020(01)97586-6