ChemInform Abstract: Multicomponent Synthesis of Cyclic Depsipeptide Mimics by Ugi Reaction Including Cyclic Hemiacetals Derived from Asymmetric Organocatalysis.

ChemInform ◽  
2016 ◽  
Vol 47 (25) ◽  
Author(s):  
Alexander F. de la Torre ◽  
Daniel G. Rivera ◽  
Odette Concepcion ◽  
Radell Echemendia ◽  
Arlene G. Correa ◽  
...  
2016 ◽  
Vol 81 (3) ◽  
pp. 803-809 ◽  
Author(s):  
Alexander F. de la Torre ◽  
Daniel G. Rivera ◽  
Odette Concepción ◽  
Radell Echemendia ◽  
Arlene G. Correa ◽  
...  

2019 ◽  
Vol 15 ◽  
pp. 1210-1216 ◽  
Author(s):  
Alexander F de la Torre ◽  
Gabriel S Scatena ◽  
Oscar Valdés ◽  
Daniel G Rivera ◽  
Márcio W Paixão

The multicomponent synthesis of prolyl pseudo-peptide catalysts using the Ugi reaction with furfurylamines or isocyanides is described. The incorporation of such a polymerizable furan handle enabled the subsequent polymerization of the peptide catalyst with furfuryl alcohol, thus rendering polyfurfuryl alcohol-supported catalysts for applications in heterogeneous enamine catalysis. The utilization of the polymer-supported catalysts in both batch and continuous-flow organocatalytic procedures proved moderate catalytic efficacy and enantioselectivity, but excellent diastereoselectivity in the asymmetric Michael addition of n-butanal to β-nitrostyrene that was used as a model reaction. This work supports the potential of multicomponent reactions towards the assembly of catalysts and their simultaneous functionalization for immobilization.


2011 ◽  
Vol 47 (24) ◽  
pp. 6966 ◽  
Author(s):  
Riccardo Mossetti ◽  
Tracey Pirali ◽  
Dèsirèe Saggiorato ◽  
Gian Cesare Tron

ChemInform ◽  
2011 ◽  
Vol 42 (43) ◽  
pp. no-no
Author(s):  
Riccardo Mossetti ◽  
Tracey Pirali ◽  
Desiree Saggiorato ◽  
Gian Cesare Tron

2011 ◽  
Vol 7 ◽  
pp. 1135-1140 ◽  
Author(s):  
Anton V Gulevich ◽  
Lyudmila S Koroleva ◽  
Olga V Morozova ◽  
Valentina N Bakhvalova ◽  
Vladimir N Silnikov ◽  
...  

The synthesis of new, artificial ribonucleases containing two amino acid residues connected by an aliphatic linker has been developed. Target molecules were synthesized via a catalytic three-component Ugi reaction from aliphatic diisocyanides. Preliminary investigations proved unspecific nuclease activity of the new compounds towards single-stranded RNA and double-stranded circular DNA.


2015 ◽  
Vol 11 (999) ◽  
pp. 1-1
Author(s):  
Ekaterina Lakontseva ◽  
Ruben Karapetian ◽  
Mikhail Krasavin
Keyword(s):  

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