Multi-step reaction with 9 steps
1.1: tert.-butyl lithium / tetrahydrofuran / 0.17 h / -78 °C / Inert atmosphere
1.2: brine
2.1: Burgess Reagent / tetrahydrofuran / 20 - 50 °C / Inert atmosphere
3.1: dichloromethane / 0.33 h / 0 °C / Inert atmosphere
4.1: sodium hydroxide / methanol; water / 0.33 h / 20 °C
5.1: N-chloro-succinimide; 2,2,6,6-Tetramethyl-1-piperidinyloxy free radical; tetrabutyl-ammonium chloride; sodium hydrogencarbonate; potassium carbonate / dichloromethane / 20 °C / Inert atmosphere
6.1: tetra-(n-butyl)ammonium iodide; sodium hydride / tetrahydrofuran; N,N-dimethyl-formamide / 0.17 h / 0 °C / Inert atmosphere
7.1: tetrabutyl ammonium fluoride / tetrahydrofuran / 20 °C / Inert atmosphere
7.2: brine
8.1: tert.-butylhydroperoxide; bis(acetylacetonate)oxovanadium / dichloromethane / 2 h / 20 °C / Inert atmosphere; Molecular sieve
9.1: 1H-imidazole; iodine; triphenylphosphine / tetrahydrofuran / 0 - 20 °C / Inert atmosphere
With
1H-imidazole; tert.-butylhydroperoxide; N-chloro-succinimide; 2,2,6,6-Tetramethyl-1-piperidinyloxy free radical; bis(acetylacetonate)oxovanadium; Burgess Reagent; tetrabutyl ammonium fluoride; tetrabutyl-ammonium chloride; iodine; tert.-butyl lithium; tetra-(n-butyl)ammonium iodide; sodium hydride; sodium hydrogencarbonate; potassium carbonate; triphenylphosphine; sodium hydroxide;
In
tetrahydrofuran; methanol; dichloromethane; water; N,N-dimethyl-formamide;
1.1: Barbier type cyclization / 8.1: Sharpless epoxidation;
DOI:10.1021/ol300390k