Fe3O4 Magnetic Nanoparticles (MNPs) as Reusable Catalyst for the Synthesis of Chromene Derivatives Using Multicomponent Reaction of 4-Hydroxycumarin Basis on Cheletropic Reaction.

Autor:	Ezzatzadeh, Elham, Hossaini, Zinatossadat, Rostamian, Rezvaneh, Vaseghi, Samaneh, Mousavi, Seyyedeh Fatemeh
Předmět:	MAGNETIC nanoparticles CATALYSTS recycling FERRIC oxide COUMARINS HETEROCYCLIC compounds synthesis COUMARIN derivatives CHELETROPIC reactions
Zdroj:	Journal of Heterocyclic Chemistry; Sep2017, Vol. 54 Issue 5, p2906-2911, 6p
Abstrakt:	A series of oxocyclopenta[c]chromenes were synthesized via three component reaction of 4-hydroxycumarin, dialkyl acetylenedicarboxylate, α-bromo ketones, and triphenylphosphine in the presence of catalytic amount of Fe3O4 magnetic nanoparticles (MNPs) (15 mol%) under solvent-free conditions at 70°C. Facile, green, easy separation of product and catalyst, and high yields of products are advantages of these reactions. [ABSTRACT FROM AUTHOR]
Databáze:	Complementary Index
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