1: 1-(2-(4-chlorophenyl)-2-oxoethyl)tetrahydro-1H-thiophen-1-ium bromide With 1,4-diaza-bicyclo[2.2.2]octane; (5aS,10bR)-5a,10b-dihydro-2-(2,4,6-trimethylphenyl)-4H,6H-indeno[2,1-b]-1,2,4-triazolo[4,3-d]-1,4-oxazinium chloride; 3,3',5,5'-tetra-tert-butyl-4,4'-diphenoquinone in toluene T=20°C; 0.0833333 h; Inert atmosphere; 2: (E)-cinnamaldehyde; isopropyl alcohol in toluene T=20°C; 24 h; Inert atmosphere; optical yield given as percent eeenantioselective reaction;

1: 1-(2-(4-bromophenyl)-2-oxoethyl)tetrahydro-1H-thiophen-1-ium bromide With 1,4-diaza-bicyclo[2.2.2]octane; (5aS,10bR)-5a,10b-dihydro-2-(2,4,6-trimethylphenyl)-4H,6H-indeno[2,1-b]-1,2,4-triazolo[4,3-d]-1,4-oxazinium chloride; 3,3',5,5'-tetra-tert-butyl-4,4'-diphenoquinone in toluene T=20°C; 0.0833333 h; Inert atmosphere; 2: (E)-cinnamaldehyde; isopropyl alcohol in toluene T=20°C; 12 h; Inert atmosphere; optical yield given as percent eeenantioselective reaction;

in chloroform Heating; Yield given;

1: 81 percent / K2OsO2(OH)4; (DHQ)2-PHAL 2: HCl / 20 h / Heating 3: 406 mg / Et3N / CH2Cl2 / 0 - 20 °C View Scheme

[RhCl(η2:η2-cycloocta-1,5-diene)]2; potassium hydroxide in 1,4-dioxane; water Michael condensation; 2 h; RefluxInert atmosphere;