1813-69-0Relevant academic research and scientific papers
Phosphine-Free Well-Defined Mn(I) Complex-Catalyzed Synthesis of Amine, Imine, and 2,3-Dihydro-1 H-perimidine via Hydrogen Autotransfer or Acceptorless Dehydrogenative Coupling of Amine and Alcohol
Das, Kalicharan,Mondal, Avijit,Pal, Debjyoti,Srivastava, Hemant Kumar,Srimani, Dipankar
supporting information, p. 1815 - 1825 (2019/04/30)
The application of nontoxic, earth-abundant transition metals in place of costly noble metals is a paramount goal in catalysis and is especially interesting if the air- and moisture-stable ligand scaffold is used. Herein, we report the synthesis of amines/imines directly from alcohol and amines via hydrogen autotransfer or acceptorless dehydrogenation catalyzed by well-defined phosphine-free Mn complexes. Both imines and amines can be obtained from the same set of alcohols and amines using the same catalyst, only by tuning the reaction conditions. The amount and nature of the base are found to be a highly important aspect for the observed selectivity. Both the primary and secondary amines have been employed as substrates for the N-alkylation reaction. As a highlight, we showed the chemoselective synthesis of resveratrol derivatives. Furthermore, the Mn-catalyzed dehydrogenative synthesis of structurally important 2,3-dihydro-1H-perimidines has also been demonstrated. Density functional theory calculations were also carried out to model the reaction path and to calculate the reaction profile.
Application of SiO 2 nanoparticles as an efficient catalyst to develop syntheses of perimidines and tetraketones
Alinezhad, Heshmatollah,Ahmadi, Armin,Hajiabbasi, Parvin
, (2019/04/10)
Abstract: In this paper, we explore the catalytic activity of SiO 2 nanoparticles (NPs) as an eco-friendly, efficient and reusable catalyst in the synthesis of 2,3-dihydro-1H-perimidines as well as tetraketones. For tetraketones syntheses, a si
Decoration of β-CD-ZrO on Fe3O4 magnetic nanoparticles as a magnetically, recoverable and reusable catalyst for the synthesis of 2,3-dihydro-1H-perimidines
Amrollahi, Mohammad Ali,Vahidnia, Fatemeh
, p. 7569 - 7581 (2018/09/12)
Abstract: This study focuses on covalent grafting of ZrO to β-CD to prepare an organic–inorganic hybrid material. The synthesised product was successfully linked on the surface of Fe3O4 magnetic nanoparticles and characterized by TGA
(Triazinediyl)bis sulfamic acid-functionalized silica-coated magnetite nanoparticles: Preparation, characterization and application as an efficient catalyst for synthesis of mono-, bis-, tris- and spiro-perimidines
Bodaghifard, Mohammad Ali,Asadbegi, Sajad,Bahrami, Zahra
, p. 365 - 376 (2017/01/10)
(Triazinediyl)bis sulfamic acid-functionalized silica-coated magnetite nanoparticles have been prepared and applicated as an efficient catalyst for synthesis of mono-, bis-, tris- and spiro-perimidines. The desired products have been synthesized in high p
Fe3O4/SiO2/(CH2)3N+Me3Br3- core-shell nanoparticles: A novel catalyst for the solvent-free synthesis of five- and six-membered heterocycles
Farrokhi, Azita,Ghodrati, Keivan,Yavari, Issa
, p. 41 - 46 (2015/02/19)
Functionalized magnetic core-shell nanoparticles [Fe3O4/SiO2/(CH2)3N+Me3Br3-] are prepared by co-precipitation method, characterized by transmission electron microscopy, FT-IR, X-ray diffraction, and vibrating sample magnetometer. The catalytic activity of these nanoparticles was tested in the syntheses of imidazole, benzothiazole, and perimidine derivatives, under solvent-free conditions. The catalyst was readily recycled by the use of an external magnetic field and could be reused five times without significant loss of activity or mass.
