进一步以2b-2d为原料，在碳酸钾存在下以丙酮为溶剂与咔唑反应，得到丙基桥连的杯芳烃咔唑衍生物3a-3c。
React with 2b-2d so as to acetone for the solvent and carbazole under potassium have in carbonic acid to step forward , get cup aromatic hydrocarbon carbazole derivative 3a-3c connected with in third base bridge .
杯咔唑