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Nano‐Fe 3 O 4 Encapsulated‐Silica Particles Bearing 3‐Aminopropyl Group as a Magnetically Separable Catalyst for Efficient Knoevenagel Condensation of Aromatic Aldehydes with Active Methylene Compounds
Author(s) -
Liu Shuo,
Ni Yuxiang,
Yang Jianguo,
Hu Huanan,
Ying Anguo,
Xu Songlin
Publication year - 2014
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.201400025
Subject(s) - chemistry , malononitrile , knoevenagel condensation , methylene , catalysis , organic chemistry , acetonitrile , benzothiazole , condensation reaction , nano , chemical engineering , engineering
Abstract Knoevenagel condensation of aromatic aldehydes with active methylene compounds such as malononitrile, ethylcyanoacetate, benzimidazol‐2‐acetonitrile and benzothiazole‐2‐acetonitrile proceeded very smoothly, catalyzed by nano‐Fe 3 O 4 encapsulated‐silica particles supported primary amine. Both reaction time and yield are satisfying. The advantages of this catalyst are ease of preparation, non‐toxicity, low cost, ease of handling and recyclability.

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