[BMPTFB]-ionic liquid as an efficient catalyst for the rapid, and eco-friendly synthesis of benzimidazole, 2-substituted benzimidazole, and benzothiazole derivatives at room temperature

Popatkar, Bhushan B.; Sasane, Nitin A.; Meshram, Gangadhar A.

doi:10.1080/00397911.2022.2142915

Cited by 8 publications

(1 citation statement)

References 53 publications

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“…[155] In 2022, Meshram and colleagues devised a more environmentally friendly method for synthesizing benzimidazole, 2substituted benzimidazole, and benzothiazole derivatives. [156] They utilized the ionic liquid 1-butyl-1-methylpiperidinium tetrafluoroborate [BMPTFB] as a catalyst in ethanol at room temperature. The reaction involved combining 1,2-diamines with aldehydes or organic acids in the presence of the catalyst.…”

Section: The Protocols To Access Benzimidazoles and Their Derivatives...mentioning

confidence: 99%

Recent Advancements in Strategies for the Synthesis of Imidazoles, Thiazoles, Oxazoles, and Benzimidazoles

Kant,

Patel,

Banerjee

et al. 2023

ChemistrySelect

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Nitrogen‐containing heterocycles such as imidazoles, thiazoles, and oxazoles play a significant role in the fields of biological and pharmaceutical chemistry. These compounds were widely used for agrochemical, pesticide, medicinal, and industrial applications. Due to the wide spectrum of structural diversity as well as the biological and pharmaceutical activity of N‐heterocycles, a plethora of reports on their synthesis have appeared in the last few decades. However, developments in various bond‐forming strategies such as C−C, C−N, C−O, C−S, and N−N, as well as C−H activation, have been used as a powerful synthetic tool to derive copious N‐heterocycles. The most prominent and fascinating reports on the synthesis of imidazole, thiazole, oxazoles, and benzimidazole moieties by C−C and C−N coupling reactions, multi‐component and cycloaddition reactions, C−H activation, etc. are discussed in this study. These studies demonstrated the enormous potential of such methods for accelerating modern chemical synthesis and establishing molecular beauty through bonding. The various aspects of the methodologies, like optimized conditions, substrate scope, and mechanistic investigations, are discussed in detail.

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Section: The Protocols To Access Benzimidazoles and Their Derivatives...mentioning

confidence: 99%

Recent Advancements in Strategies for the Synthesis of Imidazoles, Thiazoles, Oxazoles, and Benzimidazoles

Kant,

Patel,

Banerjee

et al. 2023

ChemistrySelect

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[EMIM]AlCl₄‐ionic liquid catalyzed mechanochemically assisted synthesis of 3,4‐dihydropyrimidin‐2‐(1H)‐one and thione derivatives

Popatkar

Sasane

Meshram

2023

Journal of Heterocyclic Chem

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[EMIM]AlCl4 (1‐ethyl‐3‐methylimidazolium tetrachloroaluminate) ionic liquid catalyzed mechanochemically assisted methodology for the Biginelli reaction has been developed successfully. One‐pot, multicomponent reaction between ethyl/methyl acetoacetate, urea/thiourea, and various aromatic/aliphatic and heterocyclic aldehydes in presence of catalytic amount of [EMIM]AlCl4 under grinding conditions in ethanol affords 3,4‐dihydropyrimidin‐2‐(1H)‐one and its thione derivatives. Short reaction time, inclusion of eco‐friendly solvent, moderate to high yield of the product, and operational simplicity are some of the noteworthy features of this protocol. In consequence, the described procedure finds an alternative way to existing methods for the synthesis of the titled compounds.

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Synthesis of benzazoles via oxidative cyclization using Fe3O4@PDA/CuCl2 as a green nanocatalyst

Badbedast,

Abdolmaleki,

Khalili

2023

Res Chem Intermed

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[BMPTFB]-ionic liquid as an efficient catalyst for the rapid, and eco-friendly synthesis of benzimidazole, 2-substituted benzimidazole, and benzothiazole derivatives at room temperature

Cited by 8 publications

References 53 publications

Recent Advancements in Strategies for the Synthesis of Imidazoles, Thiazoles, Oxazoles, and Benzimidazoles

Recent Advancements in Strategies for the Synthesis of Imidazoles, Thiazoles, Oxazoles, and Benzimidazoles

[EMIM]AlCl₄‐ionic liquid catalyzed mechanochemically assisted synthesis of 3,4‐dihydropyrimidin‐2‐(1H)‐one and thione derivatives

Synthesis of benzazoles via oxidative cyclization using Fe3O4@PDA/CuCl2 as a green nanocatalyst

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[BMPTFB]-ionic liquid as an efficient catalyst for the rapid, and eco-friendly synthesis of benzimidazole, 2-substituted benzimidazole, and benzothiazole derivatives at room temperature

Cited by 8 publications

References 53 publications

Recent Advancements in Strategies for the Synthesis of Imidazoles, Thiazoles, Oxazoles, and Benzimidazoles

Recent Advancements in Strategies for the Synthesis of Imidazoles, Thiazoles, Oxazoles, and Benzimidazoles

[EMIM]AlCl4‐ionic liquid catalyzed mechanochemically assisted synthesis of 3,4‐dihydropyrimidin‐2‐(1H)‐one and thione derivatives

Synthesis of benzazoles via oxidative cyclization using Fe3O4@PDA/CuCl2 as a green nanocatalyst

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[EMIM]AlCl₄‐ionic liquid catalyzed mechanochemically assisted synthesis of 3,4‐dihydropyrimidin‐2‐(1H)‐one and thione derivatives