Multi-step reaction with 10 steps
1.1: 95 percent / H2 / ((R)-(+)-2,2'-bis(diphenylphosphino)-1,1'-binaphthyl)chloro(; p-cymene)ruthenium chloride / methanol / 24 h / 72402.6 Torr
2.1: 95 percent / pyridine / CH2Cl2 / 3 h / 0 °C
3.1: 71 percent / Me2AlCl / CH2Cl2 / 0.25 h / -78 - 15 °C
4.1: 77 percent / oxalyl chloride; triethylamine; dimethylsulfoxide / CH2Cl2 / 5 h / 20 °C
5.1: 90 percent / NaBH4; CeCl3*7H2O / methanol / 0.5 h / -20 °C
6.1: 77 percent / H2 / ((S)-(-)-2,2'-bis(diphenylphosphino)-1,1'-binaphthyl)chloro(; p-cymene)ruthenium chloride / methanol / 120 h / 87917.5 Torr
7.1: 91 percent / tetrapropylammonium perruthenate; N-methylmorpholine N-oxide; molecular sieves 4 Angstroem / CH2Cl2 / 1 h / 0 - 23 °C
8.1: LDA / tetrahydrofuran; hexane / 1 h / 0 °C
8.2: hexane; tetrahydrofuran / 15.5 h / -78 - 0 °C
9.1: 62 percent / Dess-Martin periodinane; NaHCO3 / CH2Cl2 / 2 h / 0 °C
10.1: tetrahydrofuran; diethyl ether; pentane / 0.5 h / -78 °C
10.2: tetrahydrofuran; diethyl ether; pentane / 1.5 h / -78 °C
10.3: Dess-Martin periodinane; NaHCO3 / CH2Cl2 / 1 h / 0 °C
With
pyridine; sodium tetrahydroborate; cerium(III) chloride; tetrapropylammonium perruthennate; oxalyl dichloride; 4 A molecular sieve; hydrogen; dimethylaluminum chloride; sodium hydrogencarbonate; Dess-Martin periodane; dimethyl sulfoxide; 4-methylmorpholine N-oxide; triethylamine; lithium diisopropyl amide;
[ruthenium(II)(η6-1-methyl-4-isopropyl-benzene)(chloride)(μ-chloride)]2; ((R)-(+)-2,2'-bis(diphenylphosphino)-1,1'-binaphthyl)chloro(; ((S)-(-)-2,2'-bis(diphenylphosphino)-1,1'-binaphthyl)chloro(;
In
tetrahydrofuran; methanol; diethyl ether; hexane; dichloromethane; pentane;
1.1: Hydrogenation / 2.1: Esterification / 3.1: Prins reaction / 4.1: Swern oxidation / 5.1: Reduction / 6.1: Hydrogenation / 7.1: Oxidation / 8.1: Metallation / 8.2: condensation / 9.1: Oxidation / 10.1: Metallation / 10.2: Alkylation / 10.3: Oxidation;
DOI:10.1021/ol006220z