Author/Authors :
Shen، نويسنده , , Guodong and Lv، نويسنده , , Xin-hua Qian، نويسنده , , Weixing and Bao، نويسنده , , Weiliang، نويسنده ,
Abstract :
Cu2O was found to be an efficient and economical metal catalyst in the Ullmann cross-coupling reaction of vinyl bromides with imidazole or benzimidazole. The system Cu2O/ethyl 2-oxocyclohexanecarboxylate showed high catalytic activity in MeCN at 80–90 °C. The reaction gave the corresponding coupling products in good to excellent yields.
