ChemInform Abstract: A Cooperative Participation of the Amido Group in the Organocatalytic Construction of All-Carbon Quaternary Stereocenters by Michael Addition with β-Ketoamides.

ChemInform ◽  
2011 ◽  
Vol 42 (43) ◽  
pp. no-no
Author(s):  
Maria del Mar Sanchez Duque ◽  
Olivier Basle ◽  
Nicolas Isambert ◽  
Anouk Gaudel-Siri ◽  
Yves Genisson ◽  
...  
Keyword(s):  
Michael Addition ◽  
Amido Group ◽  
Quaternary Stereocenters

A Cooperative Participation of the Amido Group in the Organocatalytic Construction of All-Carbon Quaternary Stereocenters by Michael Addition with β-Ketoamides

2011 ◽  
Vol 13 (13) ◽  
pp. 3296-3299 ◽  
Author(s):  
Maria del Mar Sanchez Duque ◽  
Olivier Baslé ◽  
Nicolas Isambert ◽  
Anouk Gaudel-Siri ◽  
Yves Génisson ◽  
...  
Keyword(s):  
Michael Addition ◽  
Amido Group ◽  
Quaternary Stereocenters

scholarly journals Correction: Catalytic enantioselective construction of quaternary stereocenters by direct vinylogous Michael addition of deconjugated butenolides to nitroolefins

2015 ◽  
Vol 51 (80) ◽  
pp. 14941-14941
Author(s):  
Madhu Sudan Manna ◽  
Vikas Kumar ◽  
Santanu Mukherjee
Keyword(s):  
Michael Addition ◽  
Quaternary Stereocenters

Correction for ‘Catalytic enantioselective construction of quaternary stereocenters by direct vinylogous Michael addition of deconjugated butenolides to nitroolefins’ by Madhu Sudan Manna et al., Chem. Commun., 2012, 48, 5193–5195.

scholarly journals Multicatalytic Enantioselective Borrowing Hydrogen δ-Lactonization Strategy from β-Keto Esters and Allylic Alcohols

Synthesis ◽  
2017 ◽  
Vol 50 (04) ◽  
pp. 785-792 ◽  
Author(s):  
Adrien Quintard ◽  
Mylène Roudier ◽  
Jean Rodriguez
Keyword(s):  
Michael Addition ◽  
Building Blocks ◽  
Allylic Alcohols ◽  
Keto Esters ◽  
Borrowing Hydrogen ◽  
Quaternary Stereocenters

By combining an iron-catalyzed borrowing hydrogen of allylic alcohols with an enantioselective organocatalyzed Michael addition of β-keto esters followed by a subsequent DBU-promoted lactonization different enantioenriched δ-lactones have been synthesized with good enantioselectivities. The valuable building blocks, featuring in some cases challenging quaternary stereocenters, have been obtained with >90% ee.

ChemInform Abstract: Asymmetric Construction of Quaternary Stereocenters: Synthesis of Enantiopure Amino Acid-Based Tricyclic α,β-Enones Through an ipso-Friedel-Crafts/Michael Addition Cascade.

ChemInform ◽  
2012 ◽  
Vol 43 (26) ◽  
pp. no-no
Author(s):  
Humberto Rodriguez-Solla ◽  
Carmen Concellon ◽  
Paula Tuya ◽  
Santiago Garcia-Granda ◽  
M. Rosario Diaz
Keyword(s):  
Amino Acid ◽  
Michael Addition ◽  
Quaternary Stereocenters

Asymmetric Construction of Quaternary Stereocenters: Synthesis of Enantiopure Amino Acid-Based Tricyclic α,β-Enones through an ipso-Friedel-Crafts/Michael Addition Cascade

2012 ◽  
Vol 354 (2-3) ◽  
pp. 295-300 ◽  
Author(s):  
Humberto Rodríguez-Solla ◽  
Carmen Concellón ◽  
Paula Tuya ◽  
Santiago García-Granda ◽  
M. Rosario Díaz
Keyword(s):  
Amino Acid ◽  
Michael Addition ◽  
Quaternary Stereocenters

ChemInform Abstract: A New Stereoselective Synthesis of Cyclopropanes Containing Quaternary Stereocenters via Organocatalytic Michael Addition to Vinyl Selenones.

ChemInform ◽  
2010 ◽  
Vol 41 (2) ◽  
Author(s):  
Francesca Marini ◽  
Silvia Sternativo ◽  
Francesca Del Verme ◽  
Lorenzo Testaferri ◽  
Marcello Tiecco
Keyword(s):  
Michael Addition ◽  
Stereoselective Synthesis ◽  
Quaternary Stereocenters

scholarly journals A General, Scalable, Organocatalytic Nitro-Michael Addition to Enones: Enantioselective Access to All-Carbon Quaternary Stereocenters

2015 ◽  
Vol 17 (6) ◽  
pp. 1505-1508 ◽  
Author(s):  
Xiaodong Gu ◽  
Yuanyuan Dai ◽  
Tingting Guo ◽  
Allegra Franchino ◽  
Darren J. Dixon ◽  
...  
Keyword(s):  
Michael Addition ◽  
Quaternary Stereocenters

A vinylogous Michael addition-triggered quadruple cascade reaction for the enantioselective generation of multiple quaternary stereocenters

2019 ◽  
Vol 55 (10) ◽  
pp. 1398-1401 ◽  
Author(s):  
Shu-Mei Yang ◽  
Praneeth Karanam ◽  
Min Wang ◽  
Yeong-Jiunn Jang ◽  
Yu-Sheng Yeh ◽  
...  
Keyword(s):  
Michael Addition ◽  
Cascade Reaction ◽  
Quaternary Stereocenters

An efficient organocatalytic vinylogous Michael addition-triggered quadruple cascade reaction resulting in fused spiroxindoles bearing multiple quaternary stereocenters is demonstrated from β-trifluoroacetylarylidene indanediones and 3-alkylideneoxindoles.

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