Reduced graphene oxide-immobilized iron nanoparticles Fe(0)@rGO as heterogeneous catalyst for one-pot synthesis of series of propargylamines

Autor:	Shelly Kujur, Devendra Deo Pathak
Rok vydání:	2019
Předmět:	Nanocomposite 010405 organic chemistry Graphene One-pot synthesis Oxide Nanoparticle General Chemistry 010402 general chemistry Heterogeneous catalysis 01 natural sciences 0104 chemical sciences Catalysis law.invention Sodium borohydride chemistry.chemical_compound chemistry law Nuclear chemistry
Zdroj:	Research on Chemical Intermediates. 46:369-384
ISSN:	1568-5675 0922-6168
DOI:	10.1007/s11164-019-03955-5
Popis:	Iron nanoparticles immobilized on reduced graphene oxide (rGO), nanocomposite Fe(0)@rGO 1, were prepared in situ by reduction of GO and FeCl3·6H2O using sodium borohydride under nitrogen atmosphere. The nanocomposite 1 was isolated as a black powder having iron NPs of size ~ 41 nm. The nanocomposite 1 exhibited good catalytic activity in one-pot A3-coupling reactions of aldehyde, amines and terminal alkynes to afford propargylamines in very high yields (72–86%) at a low loading of 0.7 mol%, without any additive or a cocatalyst. The catalyst 1 can be magnetically separated, retrieved and recycled up to four times without noticeable changes in the morphology and catalytic activity.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::481dc8046db17fcd5051be24fa71a0e9 https://doi.org/10.1007/s11164-019-03955-5 Zobrazit plný text záznamu Full text from SpringerLink