Multi-step reaction with 8 steps
1: 90 percent / H2SO4 / dimethylformamide / 12 h / Ambient temperature
2: 90 percent / triphenylphosphine, carbon tetrachloride, pyridine / 8 h / 60 °C
3: 1.) potassium hydroxide, benzyltrimethylammonium chloride / 1.) CH2Cl2, 10 min, 2.) CH2Cl2, 12 h
4: 60 percent / sodium hydride / dimethylformamide / 3 h / 110 °C
5: 1.) HgCl2, 2.) thiourea / 1.) acetone-d6, D2O, 20 min, 2.) acetone-d6, D2O
6: 30 percent / lithium tri-terbutoxyaluminiumhydride / tetrahydrofuran / -40 °C / other reagent: cerium(III) chloride heptahydrate, sodium borohydride
7: pyridine / 2 h
8: 407 mg / pyridine, mesyl chloride / 2 h / Ambient temperature
With
pyridine; tetrachloromethane; potassium hydroxide; sulfuric acid; benzyltrimethylammonium chloride; sodium hydride; methanesulfonyl chloride; lithium tri-t-butoxyaluminum hydride; thiourea; triphenylphosphine; mercury dichloride;
In
tetrahydrofuran; N,N-dimethyl-formamide;
DOI:10.1016/S0040-4020(97)10101-6