Abstract
Cyclic and polycyclic compounds containing moieties such as imidazole, pyrazole, isoxazole, thiazoline, oxazine, indole, benzothiazole and benzoxazole benzimidazole are prized molecules because of the various pharmaceutical properties that they display. This led Prof. Landor and co-workers to engage in the synthesis of several of them such as alkylimidazolenes, oxazolines, thiazolines, pyrimidopyrimidines, pyridylpyrazoles, benzoxazines, quinolines, pyrimidobenzimidazoles and pyrimidobenzothiazolones. This review covers the synthesis of biologically active heterocyclic compounds by the Michael addition and the double Michael addition of various amines and diamines on allenic nitriles, acetylenic nitriles, hydroxyacetylenic nitriles, acetylenic acids and acetylenic aldehydes. The heterocycles were obtained in one step reaction and in most cases, did not give side products. A brief discussion on the biological activities of some heterocycles is also provided.
Funding source: National Research Foundation
Award Identifier / Grant number: 116740
Acknowledgments
The authors are grateful to the Department of Chemical Sciences of the University of Johannesburg. They are further grateful to the National Research Foundation of South Africa (NRF) for financial support to Marthe C. D. Fotsing (through grant No. 116740).
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Author contributions: All the authors have accepted responsibility for the entire content of this submitted manuscript and approved submission.
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Research funding: This work was supported by the National Research Foundation of South Africa (NRF) (through grant No. 116740).
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Conflict of interest statement: The authors declare no conflicts of interest regarding this article.
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Articles in the same Issue
- Frontmatter
- Reviews
- Influence of lime (CaO) on low temperature leaching of some types of bauxite from Guinea
- Ethnobotanical survey, phytoconstituents and antibacterial investigation of Rapanea melanophloeos (L.) Mez. bark, fruit and leaf extracts
- Catalytic properties of supramolecular polymetallated porphyrins
- Lignin-based polymers
- Bio-based polyhydroxyalkanoates blends and composites
- Biodegradable poly(butylene adipate-co-terephthalate) (PBAT)
- Repurposing tires – alternate energy source?
- Theoretical investigation of the stability, reactivity, and the interaction of methyl-substituted peridinium-based ionic liquids
- Polymeric membranes for biomedical applications
- Design of locally sourced activated charcoal filter from maize cob for wastewater decontamination: an approach to fight waste with waste
- Synthesis of biologically active heterocyclic compounds from allenic and acetylenic nitriles and related compounds
- Magnetic measurement methods to probe nanoparticle–matrix interactions
- Health and exposure risk assessment of heavy metals in rainwater samples from selected locations in Rivers State, Nigeria
- Evaluation of raw, treated and effluent water quality from selected water treatment plants: a case study of Lagos Water Corporation
- A chemoinformatic analysis of atoms, scaffolds and functional groups in natural products
- Hemicyanine dyes
- Thermodynamics of the micellization of quaternary based cationic surfactants in triethanolamine-water media: a conductometry study
- Compounds isolated from hexane fraction of Alternanthera brasiliensis show synergistic activity against methicillin resistant Staphylococcus aureus
- Internal structures and mechanical properties of magnetic gels and suspensions
- SPIONs and magnetic hybrid materials: Synthesis, toxicology and biomedical applications
- Magnetic field controlled behavior of magnetic gels studied using particle-based simulations
- The microstructure of magnetorheological materials characterized by means of computed X-ray microtomography
- Core-modified porphyrins: novel building blocks in chemistry
- Anticancer potential of indole derivatives: an update
- Novel drug design and bioinformatics: an introduction
- Multi-objective optimization of CCUS supply chains for European countries with higher carbon dioxide emissions
- Exergy analysis of an atmospheric residue desulphurization hydrotreating process for a crude oil refinery
- Development in nanomembrane-based filtration of emerging contaminants
- Supply chain optimization framework for CO2 capture, utilization, and storage in Germany
- Naturally occurring heterocyclic anticancer compounds
- Part-II- in silico drug design: application and success
- Advances in biopolymer composites and biomaterials for the removal of emerging contaminants
- Nanobiocatalysts and photocatalyst in dye degradation
- 3D tumor model – a platform for anticancer drug development
- Hydrogen production via water splitting over graphitic carbon nitride (g-C3N4 )-based photocatalysis
Articles in the same Issue
- Frontmatter
- Reviews
- Influence of lime (CaO) on low temperature leaching of some types of bauxite from Guinea
- Ethnobotanical survey, phytoconstituents and antibacterial investigation of Rapanea melanophloeos (L.) Mez. bark, fruit and leaf extracts
- Catalytic properties of supramolecular polymetallated porphyrins
- Lignin-based polymers
- Bio-based polyhydroxyalkanoates blends and composites
- Biodegradable poly(butylene adipate-co-terephthalate) (PBAT)
- Repurposing tires – alternate energy source?
- Theoretical investigation of the stability, reactivity, and the interaction of methyl-substituted peridinium-based ionic liquids
- Polymeric membranes for biomedical applications
- Design of locally sourced activated charcoal filter from maize cob for wastewater decontamination: an approach to fight waste with waste
- Synthesis of biologically active heterocyclic compounds from allenic and acetylenic nitriles and related compounds
- Magnetic measurement methods to probe nanoparticle–matrix interactions
- Health and exposure risk assessment of heavy metals in rainwater samples from selected locations in Rivers State, Nigeria
- Evaluation of raw, treated and effluent water quality from selected water treatment plants: a case study of Lagos Water Corporation
- A chemoinformatic analysis of atoms, scaffolds and functional groups in natural products
- Hemicyanine dyes
- Thermodynamics of the micellization of quaternary based cationic surfactants in triethanolamine-water media: a conductometry study
- Compounds isolated from hexane fraction of Alternanthera brasiliensis show synergistic activity against methicillin resistant Staphylococcus aureus
- Internal structures and mechanical properties of magnetic gels and suspensions
- SPIONs and magnetic hybrid materials: Synthesis, toxicology and biomedical applications
- Magnetic field controlled behavior of magnetic gels studied using particle-based simulations
- The microstructure of magnetorheological materials characterized by means of computed X-ray microtomography
- Core-modified porphyrins: novel building blocks in chemistry
- Anticancer potential of indole derivatives: an update
- Novel drug design and bioinformatics: an introduction
- Multi-objective optimization of CCUS supply chains for European countries with higher carbon dioxide emissions
- Exergy analysis of an atmospheric residue desulphurization hydrotreating process for a crude oil refinery
- Development in nanomembrane-based filtration of emerging contaminants
- Supply chain optimization framework for CO2 capture, utilization, and storage in Germany
- Naturally occurring heterocyclic anticancer compounds
- Part-II- in silico drug design: application and success
- Advances in biopolymer composites and biomaterials for the removal of emerging contaminants
- Nanobiocatalysts and photocatalyst in dye degradation
- 3D tumor model – a platform for anticancer drug development
- Hydrogen production via water splitting over graphitic carbon nitride (g-C3N4 )-based photocatalysis