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Catalytic Amidation of 5‐Hydroxymethylfurfural to 2,5‐Furandicarboxamide over Alkali Manganese Oxides
Author(s) -
Li Xiaofang,
Jia Xiuquan,
Ma Jiping,
Xu Yongming,
Huang Yizheng,
Xu Jie
Publication year - 2017
Publication title -
chinese journal of chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.28
H-Index - 41
eISSN - 1614-7065
pISSN - 1001-604X
DOI - 10.1002/cjoc.201600801
Subject(s) - chemistry , catalysis , manganese , alkali metal , furan , yield (engineering) , hydroxymethyl , aqueous solution , organic chemistry , inorganic chemistry , metallurgy , materials science
2,5‐Furandicarboxamide was firstly synthesized in yield of 85% via catalytic oxidative amidation of 5‐hydroxymethylfurfural with aqueous NH 3 over alkali manganese oxides of α ‐ MnO 2 /Na x MnO 2 . 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 of intermediate product of 5‐cyano‐2‐furancarboxamide to 2,5‐furan‐dicarboxamide is a slower step, which is closely relative to the reaction temperature and basicity of catalyst.