1: p-methoxybenzoic p-nitrophenyldiazoacetic anhydride With 9,10-(diphenyl)anthracene; oxygen; dirhodium tetraacetate in benzene T=30°C; 1 h; UV-irradiation; 2: methanol T=20°C; 3: in water Acid hydrolysis;

1: p-methoxybenzoic p-nitrophenyldiazoacetic anhydride With 9,10-(diphenyl)anthracene; oxygen; dirhodium tetraacetate in benzene T=30°C; 1 h; UV-irradiation; 2: methanol T=20°C; Title compound not separated from byproducts;