The first peripherally masked thiol dendrimers: a facile and highly efficient functionalization strategy of polyester dendrimers via one-pot xanthate deprotection/thiol–acrylate Michael addition reactions

2014 ◽  
Vol 50 (50) ◽  
pp. 6574-6577 ◽  
Author(s):  
Sam E. R. Auty ◽  
Oliver Andrén ◽  
Michael Malkoch ◽  
Steven P. Rannard
Keyword(s):  
Michael Addition ◽  
Addition Reactions ◽  
One Pot ◽  
Highly Efficient

We present the first xanthate surface functional dendrimers which undergo rapid one-pot deprotection to thiols and subsequent acrylate Michael addition .

Cinchona alkaloid-based chiral catalysts act as highly efficient multifunctional organocatalysts for the asymmetric conjugate addition of malonates to nitroolefins

2015 ◽  
Vol 13 (40) ◽  
pp. 10216-10225 ◽  
Author(s):  
Veeramanoharan Ashokkumar ◽  
Ayyanar Siva
Keyword(s):  
Michael Addition ◽  
Quaternary Ammonium ◽  
Conjugate Addition ◽  
Quaternary Ammonium Salts ◽  
Cinchona Alkaloid ◽  
Ammonium Salts ◽  
Addition Reactions ◽  
Chiral Catalysts ◽  
Reaction Conditions ◽  
Highly Efficient

New pentaerythritol tetrabromide based chiral quaternary ammonium salts have been prepared and used as organocatalysts for enantioselective Michael addition reactions between various nitroolefins and Michael donors under mild reaction conditions with very good chemical yields and ee's.

ChemInform Abstract: Buchwald-Hartwig Coupling/Michael Addition Reactions: One-Pot Synthesis of 1,2-Disubstituted 4-Quinolones from Chalcones and Primary Amines.

ChemInform ◽  
2012 ◽  
Vol 43 (40) ◽  
pp. no-no
Author(s):  
Xiang-Dong Fei ◽  
Zhou Zhou ◽  
Wen Li ◽  
Yong-Ming Zhu ◽  
Jing-Kang Shen
Keyword(s):  
Michael Addition ◽  
Primary Amines ◽  
Addition Reactions ◽  
One Pot ◽  
One Pot Synthesis

One-Pot Synthesis of 1,3,5-Tribenzoylbenzenes by Three Consecutive Michael Addition Reactions of 1-Phenyl-2-propyn-1-ones in Pressurized Hot Water in the Absence of Added Catalysts

2010 ◽  
Vol 17 (2) ◽  
pp. 606-612 ◽  
Author(s):  
Makoto Tanaka ◽  
Kazuya Nakamura ◽  
Tatsuya Iwado ◽  
Toshiyuki Sato ◽  
Masaki Okada ◽  
...  
Keyword(s):  
Michael Addition ◽  
Hot Water ◽  
Addition Reactions ◽  
One Pot ◽  
One Pot Synthesis
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