Multi-step reaction with 8 steps
1.1: 1-hydroxy-3H-benz[d][1,2]iodoxole-1,3-dione / dimethyl sulfoxide; dichloromethane / 2 h / 0 - 20 °C
2.1: titanium tetrachloride; N-ethyl-N,N-diisopropylamine / dichloromethane / 0.42 h / 0 °C
2.2: 0.25 h / -78 °C
3.1: N-ethyl-N,N-diisopropylamine / dichloromethane / 4 h / 0 - 20 °C
4.1: diisobutylaluminium hydride / dichloromethane; toluene / 3 h / -78 °C
5.1: zinc; ammonium chloride / tetrahydrofuran; water / 4 h / 0 - 20 °C
6.1: Dess-Martin periodane / dichloromethane / 3 h / 0 - 20 °C
7.1: samarium diiodide; methanol / tetrahydrofuran / 12 h / 20 °C
8.1: tricyclohexylphosphine[1,3-bis(2,4,6-trimethylphenyl)-4,5-dihydroimidazol-2-ylidine][benzylidene]ruthenium(II) dichloride / dichloromethane / 12 h / 40 °C / Inert atmosphere
With
tricyclohexylphosphine[1,3-bis(2,4,6-trimethylphenyl)-4,5-dihydroimidazol-2-ylidine][benzylidene]ruthenium(II) dichloride; methanol; samarium diiodide; titanium tetrachloride; diisobutylaluminium hydride; ammonium chloride; Dess-Martin periodane; N-ethyl-N,N-diisopropylamine; zinc; 1-hydroxy-3H-benz[d][1,2]iodoxole-1,3-dione;
In
tetrahydrofuran; dichloromethane; water; dimethyl sulfoxide; toluene;
DOI:10.1002/hlca.201300139