A Convenient Preparation Method for Synthesizing Formamidine Utilizing Sulfated Zirconia

Lin, Chun-Ping; Tsai, Chih-Hsiang; Chang, Han-Chung

doi:10.1007/s10562-005-7942-z

Cited by 16 publications

(1 citation statement)

References 18 publications

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“…In recent decades, N , N ′‐diaryl formamidines and their anions have been widely used in various fields of organic and medicinal chemistry . These types of compounds have many biological and pharmaceutical properties, including antimalarial, anesthetic, ultraviolet light absorbent, antihypertensive, and renal dipeptidase inhibitory activities.…”

Section: Introductionmentioning

confidence: 99%

Introduction of Two New Brønsted Acidic Ionic Liquids for the Formamide and Formamidine Derivatization of Amines

et al. 2020

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In this study, two recently reported 1,4-diazabicyclo[2.2.2] octane (DABCO)-based ionic liquids were used for the acceleration of the N-formylation of primary and secondary amines with formic acid under solvent-free conditions. These reagents have also been used for the efficient synthesis of N, N'-diaryl formamidines through reaction of triethyl orthoformate with primary aryl amines. These methods offer several advantages such as excellent yields, short reaction times and simple workup with the environmentally friendly procedure.

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Section: Introductionmentioning

confidence: 99%

Introduction of Two New Brønsted Acidic Ionic Liquids for the Formamide and Formamidine Derivatization of Amines

et al. 2020

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Ionic liquid‐functionalized mesoporous silica nanoparticles ([pmim]FeCl₄/MSNs): Efficient nanocatalyst for solvent‐free synthesis of N,N′‐diaryl‐substituted formamidines

Nasresfahani

Kassaee

Eidi

2017

Applied Organom Chemis

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We report the synthesis of ionic liquid‐functionalized mesoporous silica nanoparticles ([pmim]FeCl4/MSNs) via a method of post‐grafting on parent MSNs. This hybrid material was characterized using scanning and transmission electron microscopies, energy‐dispersive X‐ray spectroscopy, nitrogen adsorption–desorption analysis, Fourier transform infrared spectroscopy, powder X‐ray diffraction and thermal analyses. The material was utilized as an efficient heterogeneous catalyst for the synthesis of N,N′‐diaryl‐substituted formamidines through the reaction of triethyl orthoformate with arylamines under solvent‐free conditions. The catalyst was recovered easily and reused several times without significant loss of its catalytic activity.

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Preparation of Fe₃O₄@C‐dots as a recyclable magnetic nanocatalyst using Elaeagnus angustifolia and its application for the green synthesis of formamidines

Ghereghlou

Esmaeili

Darroudi

2021

Applied Organom Chemis

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This work describes a novel and simple procedure for successfully synthesizing formamidines by using Fe3O4@C‐dots in the role of an effective and reusable catalyst throughout a solvent‐free set‐up. The formamidine derivatives were easily prepared through aromatic amines with triethyl orthoformate in the company of Fe3O4@C‐dots. According to the experimental outcomes, the obtained formamidines in the presence of Fe3O4@C‐dots exhibited good to high yield values. In the following, we distinguished the prepared catalyst by applying field emission scanning electron microscope (FESEM), transmission electron microscopy (TEM), energy‐dispersive X‐ray (EDX), X‐ray diffraction (XRD), Fourier transform infrared (FTIR), and vibrating sample magnetometer (VSM) techniques. Furthermore, the evaluation of catalytic activity was done in the course of synthesizing formamidine derivatives. Among the advantages of this method, one can highlight the facts of solvent‐free conditions, the simplicity of operation, high yields, nonacidic catalyst, and the reusability of nanocatalyst for at least five cycles.

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A Convenient Preparation Method for Synthesizing Formamidine Utilizing Sulfated Zirconia

Cited by 16 publications

References 18 publications

Introduction of Two New Brønsted Acidic Ionic Liquids for the Formamide and Formamidine Derivatization of Amines

Introduction of Two New Brønsted Acidic Ionic Liquids for the Formamide and Formamidine Derivatization of Amines

Ionic liquid‐functionalized mesoporous silica nanoparticles ([pmim]FeCl₄/MSNs): Efficient nanocatalyst for solvent‐free synthesis of N,N′‐diaryl‐substituted formamidines

Preparation of Fe₃O₄@C‐dots as a recyclable magnetic nanocatalyst using Elaeagnus angustifolia and its application for the green synthesis of formamidines

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A Convenient Preparation Method for Synthesizing Formamidine Utilizing Sulfated Zirconia

Cited by 16 publications

References 18 publications

Introduction of Two New Brønsted Acidic Ionic Liquids for the Formamide and Formamidine Derivatization of Amines

Introduction of Two New Brønsted Acidic Ionic Liquids for the Formamide and Formamidine Derivatization of Amines

Ionic liquid‐functionalized mesoporous silica nanoparticles ([pmim]FeCl4/MSNs): Efficient nanocatalyst for solvent‐free synthesis of N,N′‐diaryl‐substituted formamidines

Preparation of Fe3O4@C‐dots as a recyclable magnetic nanocatalyst using Elaeagnus angustifolia and its application for the green synthesis of formamidines

Contact Info

Product

Resources

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Ionic liquid‐functionalized mesoporous silica nanoparticles ([pmim]FeCl₄/MSNs): Efficient nanocatalyst for solvent‐free synthesis of N,N′‐diaryl‐substituted formamidines

Preparation of Fe₃O₄@C‐dots as a recyclable magnetic nanocatalyst using Elaeagnus angustifolia and its application for the green synthesis of formamidines