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Catalytic hydrogenation of aromatic nitro compounds by non‐noble metal complexes of chitosan
Author(s) -
Han HuiSheng,
Jiang ShuNing,
Huang MeiYu,
Jiang YingYan
Publication year - 1996
Publication title -
polymers for advanced technologies
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.61
H-Index - 90
eISSN - 1099-1581
pISSN - 1042-7147
DOI - 10.1002/(sici)1099-1581(199608)7:8<704::aid-pat567>3.0.co;2-3
Subject(s) - nitrobenzene , aniline , catalysis , nitro , noble metal , metal , nitro compound , solvent , palladium , inorganic chemistry , materials science , chemistry , organic chemistry , alkyl
Silica‐supported mono‐metal (such as Ni, Cu) complexes and mixed metal (such as Cu/Zn, Cu/Cr) complexes of chitosan have been prepared. It is found that these non‐noble metal complexes could be used as efficient catalysts for the hydrogenation of aromatic nitro compounds. The effects of type of metal, reaction temperature and pressure, solvent, nitrogen/metal molar ratio in the complex catalysts on the yields from nitrobenzene to aniline have been examined. It was also found that catalysts are active for the catalytic hydrogenation of other aromatic nitro compounds such as 2‐nitroanisole, 2‐nitroaniline, 2‐nitrotoluene and 1‐chloro‐4‐nitrobenzene.