Immobilized Cu‐Schiff Base Complex on MCM‐41as Catalyst in the Synthesis of Benzimidazole Derivatives

Malik, Arti

doi:10.1002/slct.202200794

Cited by 8 publications

(2 citation statements)

References 41 publications

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“…The absence of Cu metal ions in the liquid was established by the MP‐AES analysis of the reaction mixture, justifying the heterogeneous nature of the synthesized catalyst. [ 95 ]…”

Section: Metal–ligand Complexes Supported On Mcm‐41mentioning

confidence: 99%

“…The absence of Cu metal ions in the liquid was established by the MP-AES analysis of the reaction mixture, justifying the heterogeneous nature of the synthesized catalyst. [95] Recently in 2022, Bharathi and group developed the phenolic Schiff base Ni complex containing 2,2 0bipyridine as other ligand and implanted on mesoporous silica surface (M44) (Scheme 27). The newly synthesized heterogeneous catalyst was utilized in Suzuki-Miyaura coupling reaction.…”

Section: S C H E M E 3 Preparation Of Ni Complex Anchored On Mcm-41 (M5)mentioning

confidence: 99%

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Synthesis and catalytic applications of organo‐functionalized MCM‐41 catalyst: A review

Khan

Shaily²

2023

Applied Organom Chemis

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In recent times, mesoporous silica sieves gathered considerable attention from a fundamental as well as an applied perspective. Particularly, MCM‐41 has become increasingly popular among researchers because of its chemical flexibility and application in various fields. In addition, MCM‐41‐based materials are currently being extensively studied for their utility as substrates, adsorbents, catalysts, molecular hosts, and ion exchangers. This review article provides a thoughtful analysis of the developments in these areas, particularly emphasizing the recent advance in the functionalization of MCM‐41 via metal complex and their catalytic applications in a variety of reactions such as coupling reactions and oxidation reactions. This review explores the catalytic properties that led to such widespread use, and why there is now an increasing drive to synthesize such a catalytic system.

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“…The absence of Cu metal ions in the liquid was established by the MP‐AES analysis of the reaction mixture, justifying the heterogeneous nature of the synthesized catalyst. [ 95 ]…”

Section: Metal–ligand Complexes Supported On Mcm‐41mentioning

confidence: 99%

Section: S C H E M E 3 Preparation Of Ni Complex Anchored On Mcm-41 (M5)mentioning

confidence: 99%

Synthesis and catalytic applications of organo‐functionalized MCM‐41 catalyst: A review

Khan

Shaily²

2023

Applied Organom Chemis

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MCM‐41 Supported Anthracene Based Cu(II)‐Schiff Base Complex: A Heterogeneous Catalyst for the Synthesis of 4H‐Pyrans/Chromene

Singh,

Malik,

Singh

et al. 2024

ChemistrySelect

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The anthracene‐appended Schiff base N1‐(anthracene‐9‐methylene)benzene‐1,2‐diamine and its Cu(II) complex has been synthesized and anchored on MCM‐41 support (MCM@CP@AnL@Cu 1). The synthesized catalyst was characterized by various analytical techniques including single crystal X‐ray. Malononitrile, 1,3‐dione, and aromatic aldehydes with various substituents were used in one‐pot, three‐component synthesis of 2‐amino‐3‐cyano‐4H‐pyran/chromene derivatives using above catalyst 1. All the products of the catalytic reaction were characterized by 1H and 13C NMR spectra. We have also proposed a probable reaction mechanism involved in the catalytic reaction. The present catalyst has several advantages like works in mild reaction conditions, that is, at 80 °C, gives higher yields up to 97%, has thermal stability up to 295 °C, and can be reused up to 5 cycles. The immobilized material did not show any considerable leaching or deterioration throughout the catalytic reactions, confirming that it possesses a practical benefit over homogeneous catalysis. The MCM@CP@AnL@Cu (1) is believed to be a good solid heterogeneous catalyst and meets the need of green chemistry for sustainable environment. To the best of our knowledge, this is first example of anthracene‐based Cu (II)‐Schiff base complexes immobilized on modified MCM‐41 surfaces for the multicomponent synthesis of 4H‐pyrans.

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Functionalized MCM-41 based recyclable catalyst (MCM-41@CP@PAL@Cu) for the epoxidation of alkenes using tert-BuOOH

Malik

2023

J Porous Mater

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Immobilized Cu‐Schiff Base Complex on MCM‐41as Catalyst in the Synthesis of Benzimidazole Derivatives

Cited by 8 publications

References 41 publications

Synthesis and catalytic applications of organo‐functionalized MCM‐41 catalyst: A review

Synthesis and catalytic applications of organo‐functionalized MCM‐41 catalyst: A review

MCM‐41 Supported Anthracene Based Cu(II)‐Schiff Base Complex: A Heterogeneous Catalyst for the Synthesis of 4H‐Pyrans/Chromene

Functionalized MCM-41 based recyclable catalyst (MCM-41@CP@PAL@Cu) for the epoxidation of alkenes using tert-BuOOH

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