scholarly journals Mechanistic Insight into Fast and Highly Efficient Organocatalytic Activity of a Tripodal Dimeric Hexaurea Capsular Assembly in Michael Addition Reactions

ACS Omega ◽  
2018 ◽  
Vol 3 (9) ◽  
pp. 10647-10656
Author(s):  
Tamal Kanti Ghosh ◽  
Rajib Ghosh ◽  
Pradyut Ghosh
Keyword(s):  
Michael Addition ◽  
Addition Reactions ◽  
Highly Efficient ◽  
Mechanistic Insight ◽  
Insight Into

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 .

scholarly journals Mechanistic Insight into Asymmetric Hetero-Michael Addition of α,β-Unsaturated Carboxylic Acids Catalyzed by Multifunctional Thioureas

2018 ◽  
Vol 140 (38) ◽  
pp. 12216-12225 ◽  
Author(s):  
Noboru Hayama ◽  
Ryuta Kuramoto ◽  
Tamás Földes ◽  
Kazuya Nishibayashi ◽  
Yusuke Kobayashi ◽  
...  
Keyword(s):  
Carboxylic Acids ◽  
Michael Addition ◽  
Mechanistic Insight ◽  
Unsaturated Carboxylic Acids ◽  
Insight Into

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.

scholarly journals Metal-free hypervalent iodine/TEMPO mediated oxidation of amines and mechanistic insight into the reaction pathways

RSC Advances ◽  
2018 ◽  
Vol 8 (56) ◽  
pp. 32055-32062 ◽  
Author(s):  
Ajay H. Bansode ◽  
Gurunath Suryavanshi
Keyword(s):  
Carbonyl Compounds ◽  
Reaction Pathways ◽  
Secondary Amines ◽  
Hypervalent Iodine ◽  
Metal Free ◽  
Highly Efficient ◽  
Mechanistic Insight ◽  
Primary And Secondary Amines ◽  
Mediated Oxidation ◽  
Insight Into

A highly efficient, metal free rapid protocol studied mechanistically the oxidation of primary and secondary amines to their corresponding carbonyl compounds using PhI(OAc)2and catalytic TEMPO to provide diverse products in excellent yields.

Mechanistic insight into highly efficient gas permeation and separation in a shape-persistent ladder polymer membrane

2014 ◽  
Vol 16 (13) ◽  
pp. 6075 ◽  
Author(s):  
Jianhai Zhou ◽  
Xiang Zhu ◽  
Jun Hu ◽  
Honglai Liu ◽  
Ying Hu ◽  
...  
Keyword(s):  
Gas Permeation ◽  
Polymer Membrane ◽  
Highly Efficient ◽  
Mechanistic Insight ◽  
Ladder Polymer ◽  
Insight Into

Zinc complexes supported by pyridine-N-oxide ligands: synthesis, structures and catalytic Michael addition reactions

2020 ◽  
Vol 49 (35) ◽  
pp. 12365-12371
Author(s):  
Xiu-Fang Mo ◽  
Chang-Feng Xiong ◽  
Ze-Wen Chen ◽  
Chao Liu ◽  
Piao He ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Michael Addition ◽  
Addition Reaction ◽  
Zinc Complexes ◽  
Addition Reactions ◽  
Michael Addition Reaction ◽  
Highly Efficient

Zinc complexes supported by pyridine-N-oxide ligands show highly efficient catalysis for Michael addition reaction. The NMR and MS experiments analysis displays intermediate [Zn(SR)2(HSR)4] has real catalytic activity for the addition reactions.

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