ChemInform Abstract: Sonochemistry: Synthesis of Bioactive Heterocycles

ChemInform ◽  
2014 ◽  
Vol 45 (35) ◽  
pp. no-no
Author(s):  
Essam M. Hussein ◽  
Khalid S. Khairou
Keyword(s):  
Bioactive Heterocycles

Microwave-assisted C-H arylation of Quinazolin-4-one-type Precursors of Bioactive Heterocycles

2015 ◽  
Author(s):  
Corinne Fruit ◽  
Julien Godeau ◽  
Marine Harari ◽  
Sylvain Laclef ◽  
Vincent Levacher ◽  
...  
Keyword(s):  
Microwave Assisted ◽  
Bioactive Heterocycles

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.

Combined coinage metal catalysis for the synthesis of bioactive molecules

2010 ◽  
Vol 82 (7) ◽  
pp. 1529-1536 ◽  
Author(s):  
Norbert Krause ◽  
Özge Aksin-Artok ◽  
Viola Breker ◽  
Carl Deutsch ◽  
Birgit Gockel ◽  
...  
Keyword(s):  
Bioactive Molecules ◽  
Selective Assembly ◽  
Chirality Transfer ◽  
Metal Catalysis ◽  
Coinage Metal ◽  
Coinage Metals ◽  
Bioactive Heterocycles

The use of the coinage metals copper, silver, and gold enables an efficient and stereo-selective assembly of bioactive heterocycles via allenic intermediates. The synthesis of functionalized allenes by SN2'-substitution or SN2'-reduction is mediated or catalyzed by copper, whereas silver and gold are the catalysts of choice for subsequent 5- or 6-endo-cyclizations. Overall, this sequence proceeds with efficient center-to-axis-to-center chirality transfer.

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