Hexamethyleneimine (HMI) is used as the structure-directing agent (SDA) in the conventional synthesis method of MCM-49 zeolite. Cyclohexanine (CA) is less toxic and cheaper than HMI. Hence, in this paper, MCM-49 zeolite was successfully synthesized by using CA as a sole SDA with the aid of seeds. Both the seed and template CA are indispensable for the synthesis of MCM-49 zeolite. The optimum synthesis conditions were obtained. The range of the SiO₂/Al₂O₃ ratio of the initial gel was broadened to 70. The synthesis of MCM-49 followed the liquid-phase crystallization mechanism. The MCM-49 zeolites synthesized by using CA and conventional template hexamethyleneimine (HMI) exhibit similar intrinsic properties, such as morphology, acidity, BET surface area, SiO₂/Al₂O₃, and so on. The MCM-49(CA) exhibite good catalytic activity and product distribution in alkylation of benzene with methanol.

在传统的MCM-49沸石合成方法中，六亚甲基亚胺（HMI）被用作结构导向剂（SDA）。环己氨酸（CA）的毒性比HMI低，且价格便宜。因此，在本文中，通过将CA用作种子的唯一SDA，成功地合成了MCM-49沸石。种子和模板CA都是合成MCM-49沸石必不可少的。获得了最佳的合成条件。初始凝胶的SiO ₂ / Al ₂ O ₃比范围扩大到70。MCM-49的合成遵循液相结晶机理。使用CA和常规模板六亚甲基亚胺（HMI）合成的MCM-49沸石具有相似的固有特性，例如形态，酸度，BET表面积，SiO₂ / Al ₂ O ₃，依此类推。MCM-49（CA）在苯与甲醇的烷基化反应中表现出良好的催化活性和产物分布。