1: carbon dioxide With [Au(1,3-bis(2,6-diisopropylphenyl)imidazol-2-ylidene)hydroxide]; potassium hydroxide in tetrahydrofuran T=20°C; P=1125.11 Torr; 0.25 h; 2: 1,3-oxazole in tetrahydrofuran T=20°C; P=1125.11 Torr; 12 h; 3: methyl iodide in tetrahydrofuran regioselective reaction;

in diethyl ether Irradiation;