Rh2(triphenylacetate)4; (R)-6,6'-bis(3,5-dimethylphenyl)-1,1'-spirobiindanyl-7,7'-diyl hydrogenphosphate in chloroform T=25°C; 0.0166667 h; Inert atmosphere; optical yield given as percent eeenantioselective reaction;

water; copper(II) sulfate in chloroform T=40°C; 0.5 h; Title compound not separated from byproducts.;