ChemInform Abstract: 1,1-Diamino-2-nitroethylenes as Excellent Hydrogen Bond Donor Organocatalysts in the Michael Addition of Carbon-Based Nucleophiles to β-Nitrostyrenes.

ChemInform ◽  
2014 ◽  
Vol 45 (9) ◽  
pp. no-no
Author(s):  
Rodrigo C. da Silva ◽  
Gustavo P. da Silva ◽  
Diego P. Sangi ◽  
Joao G. de M. Pontes ◽  
Antonio G. Ferreira ◽  
...  
Keyword(s):  
Hydrogen Bond ◽  
Michael Addition ◽  
Hydrogen Bond Donor ◽  
The Michael Addition ◽  
Carbon Based

1,1-Diamino-2-nitroethylenes as excellent hydrogen bond donor organocatalysts in the Michael addition of carbon-based nucleophiles to β-nitrostyrenes

Tetrahedron ◽  
2013 ◽  
Vol 69 (43) ◽  
pp. 9007-9012 ◽  
Author(s):  
Rodrigo C. da Silva ◽  
Gustavo P. da Silva ◽  
Diego P. Sangi ◽  
João G. de M. Pontes ◽  
Antônio G. Ferreira ◽  
...  
Keyword(s):  
Hydrogen Bond ◽  
Michael Addition ◽  
Hydrogen Bond Donor ◽  
The Michael Addition ◽  
Carbon Based

scholarly journals Facile and Promising Method for Michael Addition of Indole and Pyrrole to Electron-Deficienttrans-β-Nitroolefins Catalyzed by a Hydrogen Bond Donor Catalyst Feist’s Acid and Preliminary Study of Antimicrobial Activity

2014 ◽  
Vol 2014 ◽  
pp. 1-15 ◽  
Author(s):  
Abdullah M. A. Al Majid ◽  
Mohammad Shahidul Islam ◽  
Assem Barakat ◽  
Mohamed H. M. Al-Agamy ◽  
Mu. Naushad
Keyword(s):  
Antimicrobial Activity ◽  
Hydrogen Bond ◽  
Michael Addition ◽  
Hydrogen Bond Donor ◽  
New Class ◽  
Optimum Reaction ◽  
Preliminary Study ◽  
Cooperative Hydrogen Bonding ◽  
The Michael Addition

The importance of cooperative hydrogen-bonding effects has been demonstrated using novel 3-methylenecyclopropane-1,2-dicarboxylic acid (Feist’s acid (FA)) as hydrogen bond donor catalysts for the addition of indole and pyrrole totrans-β-nitrostyrene derivatives. Because of the hydrogen bond donor (HBD) ability, Feist’s acid (FA) has been introduced as a new class of hydrogen bond donor catalysts for the activation of nitroolefin towards nucleophilic substitution reaction. It has effectively catalyzed the Michael addition of indoles and pyrrole toβ-nitroolefins under optimum reaction condition to furnish the corresponding Michael adducts in good to excellent yields (up to 98%). The method is general, atom-economical, convenient, and eco-friendly and could provide excellent yields and regioselectivities. Some newly synthesized compounds were for examinedin vitroantimicrobial activity and their preliminary results are reported.

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