Surface-Improved Asymmetric Michael Addition Catalyzed by Amino Acids Adsorbed on Laponite

2018 ◽  
Vol 360 (10) ◽  
pp. 1992-2004 ◽  
Author(s):  
György Szőllősi ◽  
Dániel Gombkötő ◽  
Attila Zsolt Mogyorós ◽  
Ferenc Fülöp
Keyword(s):  
Amino Acids ◽  
Michael Addition ◽  
Asymmetric Michael Addition

Cu(i)/TF-BiphamPhos-catalyzed asymmetric Michael addition of cyclic ketimino esters to alkylidene malonates

2015 ◽  
Vol 13 (19) ◽  
pp. 5460-5466 ◽  
Author(s):  
Zhi-Yong Xue ◽  
Zhi-Min Song ◽  
Chun-Jiang Wang
Keyword(s):  
Amino Acids ◽  
Michael Addition ◽  
Asymmetric Michael Addition ◽  
Stereogenic Centers ◽  
Efficient Construction

Cu(i)-catalyzed asymmetric Michael addition of cyclic ketimino esters with alkylidene malonates has been developed for efficient construction of β-branched α-amino acids containing adjacent quaternary and tertiary stereogenic centers in good yields with excellent diastereo-/enantioselectivities.

Asymmetric Michael addition of α-fluoro-α-nitro esters to nitroolefins: towards synthesis of α-fluoro-α-substituted amino acids

2015 ◽  
Vol 13 (8) ◽  
pp. 2350-2359 ◽  
Author(s):  
Jacek Kwiatkowski ◽  
Yixin Lu
Keyword(s):  
Amino Acids ◽  
Michael Addition ◽  
Asymmetric Michael Addition ◽  
Nitro Esters ◽  
Excellent Chemical

α-Fluoro-α-nitro esters were used as reaction partners in Michael addition to nitroalkenes, and the products were obtained in excellent chemical yields and with high enantioselectivities.

Tandem Alkylation/Michael Addition Reaction of Dithiocarbamic Acids with Alkyl γ-Bromocrotonates: Access to Functionalized 1,3-Thiazolidine-2-thiones

Synthesis ◽  
2021 ◽  
Author(s):  
Azim Ziyaei Halimehjani ◽  
Petr Beier ◽  
Maryam Khalili Foumeshi ◽  
Ali Alaei ◽  
Blanka Klepetářová
Keyword(s):  
Amino Acids ◽  
Carbon Disulfide ◽  
Multicomponent Reaction ◽  
Michael Addition ◽  
Addition Reaction ◽  
Primary Amines ◽  
Oxidation Reactions ◽  
Michael Addition Reaction ◽  
Synthetic Utility ◽  
Reaction Proceeds

AbstractThiazolidine-2-thiones were prepared via a novel multicomponent reaction of primary amines (amino acids), carbon disulfide, and γ-bromocrotonates. The reaction proceeds via a domino alkylation/intramolecular Michael addition to provide the corresponding thiazolidine-2-thiones in high to excellent yields. By using diamines in this protocol, bis(thiazolidine-2-thiones) derivatives were synthesized. The synthetic utility of the adducts was demonstrated by hydrolysis, amidation, and oxidation reactions.

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