scholarly journals Carbohydrate supramolecular chemistry: beyond the multivalent effect

2020 ◽  
Vol 56 (39) ◽  
pp. 5207-5222 ◽  
Author(s):  
Manuel González-Cuesta ◽  
Carmen Ortiz Mellet ◽  
José M. García Fernández
Keyword(s):  
Supramolecular Chemistry ◽  
Biological Context ◽  
Multivalent Effect

(Hetero)multivalency acts as a multichannel switch that shapes the supramolecular properties of carbohydrates in an intrinsically multifactorial biological context.

p-Sulfonic acid calix[n]arene catalyzed synthesis of bioactive heterocycles: A review

2020 ◽  
Vol 24 ◽  
Author(s):  
Bubun Banerjee ◽  
Gurpreet Kaur ◽  
Navdeep Kaur
Keyword(s):  
Supramolecular Chemistry ◽  
Sulfonic Acid ◽  
Catalytic Efficiency ◽  
The Other ◽  
Reaction Conditions ◽  
Metal Free ◽  
Bioactive Scaffolds ◽  
Wide Range ◽  
Efficient Alternative ◽  
Bioactive Heterocycles

: Metal-free organocatalysts are becoming an important tool for the sustainable developments of various bioactive heterocycles. On the other hand, during last two decades, calix[n]arenes have been gaining considerable attention due to their wide range of applicability in the field of supramolecular chemistry. Recently, sulfonic acid functionalized calix[n] arenes are being employed as an efficient alternative catalyst for the synthesis of various bioactive scaffolds. In this review we have summarized the catalytic efficiency of p-sulfonic acid calix[n]arenes for the synthesis of diverse biologically promising scaffolds under various reaction conditions. There is no such review available in the literature showing the catalytic applicability of p-sulfonic acid calix[n]arenes. Therefore, we strongly believe that this review will surely attract those researchers who are interested about this fascinating organocatalyst.

Supra-Amphiphiles: A New Bridge Between Colloidal Science and Supramolecular Chemistry

Langmuir ◽  
2014 ◽  
Vol 30 (21) ◽  
pp. 5989-6001 ◽  
Author(s):  
Yuetong Kang ◽  
Kai Liu ◽  
Xi Zhang
Keyword(s):  
Supramolecular Chemistry ◽  
Colloidal Science

scholarly journals Size-control in the synthesis of oxo-bridged phosphazane macrocycles via a modular addition approach

2021 ◽  
Vol 4 (1) ◽  
Author(s):  
Xiaoyan Shi ◽  
Felix León ◽  
How Chee Ong ◽  
Rakesh Ganguly ◽  
Jesús Díaz ◽  
...  
Keyword(s):  
Small Molecules ◽  
Supramolecular Chemistry ◽  
Size Control ◽  
High Order ◽  
Precise Control ◽  
Main Group Chemistry ◽  
Future Developments ◽  
Synthetic Routes ◽  
Block Complexity ◽  
Macrocyclic Cavity

AbstractInorganic macrocycles remain largely underdeveloped compared with their organic counterparts due to the challenges involved in their synthesis. Among them, cyclodiphosphazane macrocycles have shown to be promising candidates for supramolecular chemistry applications due to their ability to encapsulate small molecules or ions within their cavities. However, further developments have been handicapped by the lack of synthetic routes to high-order cyclodiphosphazane macrocycles. Moreover, current approaches allow little control over the size of the macrocycles formed. Here we report the synthesis of high-order oxygen-bridged phosphazane macrocycles via a “3 + n cyclisation” (n = 1 and 3). Using this method, an all-PIII high-order hexameric cyclodiphosphazane macrocycle was isolated, displaying a larger macrocyclic cavity than comparable organic crown-ethers. Our approach demonstrates that increasing building block complexity enables precise control over macrocycle size, which will not only generate future developments in both the phosphazane and main group chemistry but also in the fields of supramolecular chemistry.

Inverted metal–organic frameworks: isoreticular decoration with organic anions using principles of supramolecular chemistry

2021 ◽  
Vol 74 (1-3) ◽  
pp. 169-177
Author(s):  
Claude L. Mertzenich ◽  
Giannis S. Papaefstathiou ◽  
Tomislav Friščić ◽  
Tamara D. Hamilton ◽  
Dejan-Krešimir Bučar ◽  
...  
Keyword(s):  
Supramolecular Chemistry ◽  
Metal Organic Frameworks ◽  
Organic Anions ◽  
Metal Organic

scholarly journals Synthesis of Carbohydrate Based Macrolactones and Their Applications as Receptors for Ion Recognition and Catalysis

Molecules ◽  
2021 ◽  
Vol 26 (11) ◽  
pp. 3394
Author(s):  
Surya B. Adhikari ◽  
Anji Chen ◽  
Guijun Wang
Keyword(s):  
Nucleophilic Substitution ◽  
Supramolecular Chemistry ◽  
Copper Sulfate ◽  
Substitution Reaction ◽  
Biological Properties ◽  
Anion Binding ◽  
Nucleophilic Substitution Reaction ◽  
Binding Properties ◽  
Intramolecular Nucleophilic Substitution ◽  
Leaving Groups

Glycomacrolactones exhibit many interesting biological properties, and they are also important in molecular recognitions and for supramolecular chemistry. Therefore, it is important to be able to access glycomacrocycles with different sizes and functionality. A new series of carbohydrate-based macrocycles containing triazole and lactone moieties have been designed and synthesized. The synthesis features an intramolecular nucleophilic substitution reaction for the macrocyclization step. In this article, the effect of some common sulfonate leaving groups is evaluated for macrolactonization. Using tosylate gave good selectivity for monolactonization products with good yields. Fourteen different macrocycles have been synthesized and characterized, of which eleven macrocycles are from cyclization of the C1 to C6 positions of N-acetyl D-glucosamine derivatives and three others from C2 to C6 cyclization of functionalized D-glucosamine derivatives. These novel macrolactones have unique structures and demonstrate interesting anion binding properties, especially for chloride. The macrocycles containing two triazoles form complexes with copper sulfate, and they are effective ligands for copper sulfate mediated azide-alkyne cycloaddition reactions (CuAAC). In addition, several macrocycles show some selectivity for different alkynes.

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