Nano??Fe3O4 Encapsulated??Silica Particles Bearing 3??Aminopropyl Group as a Magnetically Separable Catalyst for Efficient Knoevenagel Condensation of Aromatic …

S Liu, Y Ni, J Yang, H Hu, A Ying…

Index: Liu, Shuo; Ni, Yuxiang; Yang, Jianguo; Hu, Huanan; Ying, Anguo; Xu, Songlin Chinese Journal of Chemistry, 2014 , vol. 32, # 4 p. 343 - 348

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Citation Number: 11

Abstract

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, ...