研究了KF/Al2 O3作为一种新型的碱性催化剂 ,对咔唑的N 乙基化反应进行的催化 ,在 60℃下反应 2h得到最佳收率为 33 1 7% (色谱数据 )。试验结果表明KF/Al2 O3对本反应的催化能力比传统催化剂要低 ,但是这种催化剂在反应中不产生废碱液 ,没有环境污染问题 KF / Al 2 O 3 was studied as a new type of basic catalyst to catalyze the N-ethylation reaction of carbazole. The best yield of 33.7% was obtained after reaction at 60 ℃ for 2h (chromatographic data). The experimental results show that KF / Al2 O3 has a lower catalytic activity than the conventional catalyst, but this catalyst does not generate spent alkali solution in the reaction and has no environmental pollution problem