Multi-step reaction with 11 steps
1: NaH, nBu4NI / tetrahydrofuran
2: nBu4NF / tetrahydrofuran
3: pyridine
4: 1.) ozone, 2.) Me2S / 1.) methanol, -78 deg C, 2.) 2 h
6: 1.) I2, 2.) LAH / 1.) hexane, 2.) THF, 0 deg C
7: DMSO, (COCl)2 / CH2Cl2 / 0.17 h / -78 °C
8: 1.) n-BuLi / 1.) THF, hexane, -78 deg C, 40 min, 2.) 10 min
9: PCC, K2HPO4, 4-Angstroem mol. sieves / CH2Cl2
10: 1.) LiCl, diisopropylethylamine, 2.) 2-mercaptopyridine / 1.) acetonitryl, 0 deg C, 5 min, 2.) 0 deg C, 20 min
11: mercaptopyridine / CH2Cl2 / 1 h / 23 °C
With
pyridine; 2-Sulfanylpyridine; dipotassium hydrogenphosphate; lithium aluminium tetrahydride; n-butyllithium; oxalyl dichloride; dimethylsulfide; 4 A molecular sieve; tetrabutyl ammonium fluoride; iodine; tetra-(n-butyl)ammonium iodide; sodium hydride; ozone; dimethyl sulfoxide; N-ethyl-N,N-diisopropylamine; pyridinium chlorochromate; lithium chloride;
In
tetrahydrofuran; dichloromethane;
DOI:10.1021/jo00265a036