【摘要】 ［Ｆｅ］ＫＬ分子筛上高选择性地制备Ｎ甲基苯胺杨春何农跃须沁华（南京大学化学系，南京２１００９３）关键词苯胺，烷基化，Ｎ甲基苯胺，［Ｆｅ］ＫＬ分子筛Ｎ甲基苯胺（ＮＭＡ）是苯胺甲醇烷基化反应的主要产物之一，可用作有机合成的原料和染料中间体．以往...更多还原

【Abstract】 In alkylation of aniline with methanol, KL zeolite exhibits much higher NMA (N-methylaniline) selectivity (>95%) and more stable activity with time on stream than NaX, NaY and Naβ under the same experimental conditions. Incorporation of proper amount of Fe in framework of zeolite can enhance the activity of L zeolite without loss of its high NMA selectivity. This improvement was attributed to the increase in the basicity and the decrease in the acidity of sample. The high NMA selectivity of L zeolite may be contributed by its onedimensional channel structure without large cavity and its low number of accessible acid sites as well.更多还原