Sheykhi A, Khandar AA, Janczak J, Amini M. A new binuclear Ni(II) complex, an effective A
3-coupling catalyst in solvent-free condition.
Heliyon 2023;
9:e17743. [PMID:
37539298 PMCID:
PMC10395144 DOI:
10.1016/j.heliyon.2023.e17743]
[Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2023] [Revised: 06/12/2023] [Accepted: 06/27/2023] [Indexed: 08/05/2023] Open
Abstract
A newly binuclear nickel(II) complex, [Ni2(en)4(ox)](ClO4)2 (1) (where en = ethylenediamine, and ox = oxalate), has been isolated from a reaction of NiCl2·6H2O, ethylenediamine, ammonium oxalate and sodium perchlorate in water and its crystal structure has been determined by X-ray crystallography and infra-red techniques. Compound 1 was successfully employed to promote the one-pot reaction of aldehydes, amines and acetylenes for the construction of corresponding propargylamines under solvent-free media with fine yields. Further studies reveal this catalytic system can be refreshed and used again in five runs.
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