Catalytic Amidation of 5-Hydroxymethylfurfural to 2,5-Furandicarboxamide over Alkali Manganese Oxides
作者:Xiaofang Li、Xiuquan Jia、Jiping Ma、Yongming Xu、Yizheng Huang、Jie Xu
DOI:10.1002/cjoc.201600801
日期:2017.6
2,5‐Furandicarboxamide was firstly synthesized in yield of 85% via catalytic oxidative amidation of 5‐hydroxymethylfurfural with aqueous NH3 over alkali manganese oxides of α‐MnO2/NaxMnO2. The intermediates of 5‐hydroxymethyl‐furonitrile, 2,5‐dicyanofuran, and 5‐cyano‐2‐furancarboxamide were verified and their reactivities were further examined. The kinetic analysis results showed that the transformation
2,5- Furandicarboxamide经由5-羟甲基糠醛的催化氧化的酰胺化的85%的产率首次合成用NH水性3以上的碱锰氧化物α -MnO 2 /钠X的MnO 2。验证了5-羟甲基呋喃腈,2,5-二氰呋喃和5-氰基-2-呋喃酰胺的中间体,并进一步检查了它们的反应性。动力学分析结果表明,从5-氰基-2-呋喃甲酰胺中间产物到2,5-呋喃-二甲酰胺的转化是一个较慢的步骤,这与催化剂的反应温度和碱度密切相关。