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SBA-15孔道键连苯磺酸及其Beckmann重排催化性能
Authors
初景龙
曲景奎
+3 more
王丽娜
赵伟
齐涛
Publication date
1 January 2008
Publisher
Abstract
采用水热体系中一步法合成了苯磺酸基修饰 SBA-15的 SBA-15-ph-SO_3 H 催化剂。以液相反应为探针,系统考察了不同溶剂体系对催化剂催化活性的影响。结果表明,以该型杂化材料为催化剂,Beckmann 重排反应存在明显的溶剂效应。在非极性非质子溶剂体系中,催化剂显示了较好的催化活性和选择性。根据实验结果。尝试性地提出了一个五元环过渡态的反应机理
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Last time updated on 09/11/2016