Multicomponent reactions (MCRs) include several aspects of green chemistry principles, so it is obvious that chemists in different areas are increasingly interested in providing their product by multicomponent approaches. MCRs can be very useful in supramolecular chemistry, especially to produce novel supramolecular derivatives. Therefore, there are several reports of highly-functionalized calix[4]arene derivatives obtained by MCRs instead of conventional stepwise protocols during the last decade. In this paper, we have particularly focused on the exploitation of upper rim and lower rim substituted calix[4]arenes in multicomponent approaches as a facile and convenient synthetic strategy. The value of this method lies in its operational simplicity, mild reaction conditions and structural diversity of the products. Interestingly, in most cases the products afforded by this method offer unique features and applications which are highlighted in the following sections.

Download full-text PDF

Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9065295PMC
http://dx.doi.org/10.1039/c9ra03354hDOI Listing

Publication Analysis

Top Keywords

calix[4]arenes multicomponent
8
multicomponent reactions
8
multicomponent approaches
8
highly functionalized
4
functionalized calix[4]arenes
4
multicomponent
4
reactions synthesis
4
synthesis recognition
4
recognition properties
4
properties multicomponent
4

Similar Publications

The ion-pair recognition ability of calix[4]pyrrole was utilized to form a multicomponent monomeric assembly and a linear supramolecular polymer concurrent anion and bis-cation complexation. The inherent dynamic interactions of these assemblies were further used to construct pseudorotaxanes in monomeric and supramolecular polymer forms with pillar[5]arene.

View Article and Find Full Text PDF
Article Synopsis
  • Functional antitumor vaccines are crucial for active tumor immunotherapy and targeting glycoprotein MUC1 can enhance their design for cancer treatment.
  • Researchers developed two types of tetravalent vaccine candidates using different calixarene scaffolds, applying advanced computational techniques like quantum mechanics and molecular dynamics to optimize their structure.
  • The study found that the flexibility of the scaffold significantly influences the vaccine's ability to interact with targets biologically, as demonstrated by alignment with experimental immunogenicity data.
View Article and Find Full Text PDF

Multicomponent reactions (MCRs) include several aspects of green chemistry principles, so it is obvious that chemists in different areas are increasingly interested in providing their product by multicomponent approaches. MCRs can be very useful in supramolecular chemistry, especially to produce novel supramolecular derivatives. Therefore, there are several reports of highly-functionalized calix[4]arene derivatives obtained by MCRs instead of conventional stepwise protocols during the last decade.

View Article and Find Full Text PDF

Functionalized Porous Silica-Based Nano/Micro Particles for Environmental Remediation of Hazard Ions.

Nanomaterials (Basel)

February 2019

School of Resources, Environment and Materials, Guangxi Key Laboratory of Processing for Non-ferrous Metallic and Featured Materials, Guangxi University, Nanning 530004, China.

Article Synopsis
  • This review focuses on the use of modified silica-based nano/micro-particles for adsorbing and separating hazardous metal ions and radioactive materials from wastewater, highlighting the importance of these materials since the introduction of ordered mesoporous silica substrates.
  • It summarizes different synthesis methods for modifying silica particles, including direct synthesis, wetness impregnation, and layer-by-layer deposition, emphasizing their effects on the properties and performance of the particles in specific ion removal.
  • The review also examines various inorganic and organic materials used for modification, discussing their structures, capacities, selectivities in removing ions from solutions, and potential mechanisms of retention, ultimately identifying candidates for environmental remediation.
View Article and Find Full Text PDF

The catalyst p-sulfonic acid calix[4]arene was effectively used in the three-component Povarov reaction between aromatic anilines and two equivalents of 2,3-dihydrofuran to obtain furano[3,2-c]-1,2,3,4-tetrahydroquinolines. These reactions proceeded efficiently using water as a green solvent and nontoxic catalysts that could be efficiently reused; the reactions were metal-free and used only inexpensive and easily available compounds. Together with a simple workup procedure, these advantages make this protocol a very efficient and green alternative to the traditional methods for constructing tetrahydroquinoline structures, through the formation of two new C-C bonds and one C-N bond.

View Article and Find Full Text PDF

Want AI Summaries of new PubMed Abstracts delivered to your In-box?

Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!