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A novel hydrophobic copper complex supported on γ‐Fe 2 O 3 as a magnetically heterogeneous catalyst for one‐pot three‐component synthesis of α‐aminophosphonates
Author(s) -
Sobhani Sara,
Khakzad Fatemeh
Publication year - 2017
Publication title -
applied organometallic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.53
H-Index - 71
eISSN - 1099-0739
pISSN - 0268-2605
DOI - 10.1002/aoc.3877
Subject(s) - catalysis , chemistry , copper , leaching (pedology) , heterogeneous catalysis , solvent , chemical engineering , inorganic chemistry , organic chemistry , environmental science , soil science , engineering , soil water
A novel hydrophobic copper complex supported on γ‐Fe 2 O 3 is synthesized and characterized by different methods such as FT‐IR, XRD, TEM, SEM, TGA, VSM, ICP and CHN analysis. It was used as a magnetically recyclable heterogeneous catalyst for the efficient synthesis of α‐aminophosphonates via a one‐pot three‐component reaction under solvent‐free conditions. The present catalytic system worked extremely well for the synthesis of α‐aminophosphonates even up to five subsequent trails without significant loss of its catalytic activity or copper leaching. The TEM image and FT‐IR spectrum of the catalyst after five times recovery showed that the structure of the catalyst was stable under the reaction conditions with no change being observed. The strong magnetic properties of the reused catalyst were revealed by complete and easy attraction using an external magnet and also by VSM curve. This work represents the first and unique example of a hydrophobic copper complex for catalysis in water generating reactions.