Boron heterocycles. V. Preparation and characterization of selected heteronuclear diboron ring systems

1968 ◽  
Vol 7 (2) ◽  
pp. 225-230 ◽  
Author(s):  
Cletus N. Welch ◽  
Sheldon G. Shore
Keyword(s):  
Ring Systems ◽  
Boron Heterocycles

scholarly journals Synthesis and characterization of some new heterocyclic compounds from α, β- unsaturated carbonyl system

2021 ◽  
pp. 56-63
Author(s):  
Muna A. Othman Salem ◽  
Hana A. A. Mageed ◽  
Huda S. Muftah ◽  
Reda F. El- Ezabi ◽  
Fayrouz A. Khaled
Keyword(s):  
Heterocyclic Compounds ◽  
Heterocyclic Ring ◽  
Solvent Free ◽  
Synthesis And Characterization ◽  
One Pot ◽  
Ring Systems ◽  
One Pot Synthesis ◽  
Solvent Free Conditions

An efficient and facile one pot synthesis of 3,4-dihydropyrimidinones (Belinelli compound) from furfural, acetylacetone and urea under solvent free conditions was performed, resulted in promising yield. These compounds reacted with benzaldehyde and furfural to give the corresponding chalcones. Chalcones are used to synthesize several derivatives like pyrazolines isoxazoles and pyrimidines having different heterocyclic ring systems. Keywords: Belinelli compounds; Chalcone; Pyrazolines isoxazoles; Pyrimidines

Synthesis & Characterization of 2-(substituted-phenyl)acetohydrazide Analogs, 1,3,4-oxadiazoles, and 1,2,4-triazine Ring Systems: A Novel Class of Potential Analgesic and Anti-Inflammatory Agents

2016 ◽  
Vol 13 (6) ◽  
pp. 547-562
Author(s):  
Prakash S. Nayak ◽  
Badiadka Narayana ◽  
Jennifer Fernandes ◽  
Balladka K. Sarojini ◽  
Sana Sheik ◽  
...  
Keyword(s):  
Triazine Ring ◽  
Ring Systems ◽  
Anti Inflammatory
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