Catalysis Letters p. 1810 - 1818 (2014)
Update date:2022-08-11
Topics:
Li, Zhifeng
Ni, Yuxiang
Qiu, Fangli
Ying, Anguo
Xu, Songlin
Wang, Yunlong
Ionic tagged propyl amine immobilized on magnetic nanoparticles (MNPs) was synthesized and fully characterized. The novel catalyst (MNPs@PA-IL) was applied in phospha-Michael addition and gave the desired β-phosphonomalonates in good yields. The MNPs supported catalyst with ionic tag could be readily recovered from the reaction mixture using an external magnet. Compared with ionic-free counterpart (MNPs@PA), MNPs@PA-IL present better catalytic activity. The proposed mechanism regarding the MNPs@PA-IL catalyzed phospha-Michael reaction was also discussed.
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