Gui-chun Yang, Z. X. Chen, Guo-Yu Xu
Feb 1, 2004
Citations
0
Influential Citations
16
Citations
Journal
Catalysis Communications
Abstract
Abstract Copolymerization of styrene and functionalized monomer [ tert -butyl-4 ( p -vinylbenzyl) piperazine-carboxylate] and deprotection of Boc group readily afforded soluble non-cross-linked polystyrene (NCPS)-supported piperazine in 58% yield and high loading (3.0 mmol NH/g) under microwave. The copolymers were easily characterized by routine analytical methods such as IR, 1 H NMR and elemental analysis and smoothly catalyzed Knoevenagel condensation of aldehydes with malonitrile or ethyl cyanoacetate under microwave irradiation in CHCl 3 for 20 min to afford the desired alkenes in good purity and yield.