Asymmetric organocatalysis mediated by primary amines derived from cinchona alkaloids: recent advances

2014 ◽  
Vol 4 (2) ◽  
pp. 311-320 ◽  
Author(s):  
Jindian Duan ◽  
Pengfei Li
Keyword(s):  
Cinchona Alkaloids ◽  
Primary Amines ◽  
Recent Advances ◽  
Asymmetric Organocatalysis

ChemInform Abstract: NHCs in Asymmetric Organocatalysis: Recent Advances in Azolium Enolate Generation and Reactivity

ChemInform ◽  
2012 ◽  
Vol 43 (41) ◽  
pp. no-no
Author(s):  
James Douglas ◽  
Gwydion Churchill ◽  
Andrew D. Smith
Keyword(s):  
Recent Advances ◽  
Asymmetric Organocatalysis

scholarly journals Cupreines and cupreidines: an established class of bifunctional cinchona organocatalysts

2016 ◽  
Vol 12 ◽  
pp. 429-443 ◽  
Author(s):  
Laura A Bryant ◽  
Rossana Fanelli ◽  
Alexander J A Cobb
Keyword(s):  
Functional Groups ◽  
Bifunctional Catalyst ◽  
Cinchona Alkaloids ◽  
Asymmetric Organocatalysis

Cinchona alkaloids with a free 6'-OH functionality are being increasingly used within asymmetric organocatalysis. This fascinating class of bifunctional catalyst offers a genuine alternative to the more commonly used thiourea systems and because of the different spacing between the functional groups, can control enantioselectivity where other organocatalysts have failed. In the main, this review covers the highlights from the last five years and attempts to show the diversity of reactions that these systems can control. It is hoped that chemists developing asymmetric methodologies will see the value in adding these easily accessible, but underused organocatalysts to their screens.

scholarly journals Recent Advances in the Synthesis of Hydrogenated Azocine-Containing­ Molecules

Synthesis ◽  
2017 ◽  
Vol 49 (17) ◽  
pp. 3801-3834 ◽  
Author(s):  
Anna Listratova ◽  
Leonid Voskressensky
Keyword(s):  
Ring Opening ◽  
Aldol Condensation ◽  
Ring Expansion ◽  
Radical Cyclization ◽  
Primary Amines ◽  
Ring Closing Metathesis ◽  
Recent Advances ◽  
Activated Alkynes ◽  
Ring Expansion Reaction ◽  
Metal Catalyzed

This review covers recent advances in synthesis of azocine-containing systems. The most approaches towards azocines are discussed.1 Introduction2 Ring-Expansion Reaction2.1 Ring-Expansion Reaction of Cyclopentane Containing the 1,4-Diketone Moiety with Primary Amines (from 5 to 8)2.2 Ring-Expansion Reaction of Annulated Tetrahydropyridines under the Action of Activated Alkynes (from 6 to 8)2.3 Reductive Ring-Expansion Reaction of Cyclic Oximes2.4 Other Ring-Expansion Reactions3 Heck Reaction4 Cycloaddition5 Ring-Closing Metathesis (RCM)6 Cyclization6.1 Metal-Catalyzed Cyclization6.2 Radical Cyclization6.3 Friedel–Crafts Cyclization6.4 Other Examples of Cyclizations7 Microwave- and Photo-Assisted Reactions8 Other Methods8.1 Cascade and Tandem Reactions8.2 Aldol Condensation8.3 Thermolysis8.4 Ring Opening8.5 Other Methods9 Conclusion

Recent advances in cooperative ion pairing in asymmetric organocatalysis

2012 ◽  
Vol 41 (5) ◽  
pp. 1696-1707 ◽  
Author(s):  
Jean-François Brière ◽  
Sylvain Oudeyer ◽  
Vincent Dalla ◽  
Vincent Levacher
Keyword(s):  
Ion Pairing ◽  
Recent Advances ◽  
Asymmetric Organocatalysis

ChemInform Abstract: Synergic Asymmetric Organocatalysis (SAOc) of Cinchona Alkaloids and Secondary Amines in the Synthesis of Bicyclo[2.2.2]octan-2-ones.

ChemInform ◽  
2009 ◽  
Vol 40 (25) ◽  
Author(s):  
Marco Bella ◽  
Daniele M. Scarpino Schietroma ◽  
Pier Paolo Cusella ◽  
Tecla Gasperi ◽  
Valerio Visca
Keyword(s):  
Cinchona Alkaloids ◽  
Secondary Amines ◽  
Asymmetric Organocatalysis

ChemInform Abstract: Recent Advances in Cooperative Ion Pairing in Asymmetric Organocatalysis

ChemInform ◽  
2012 ◽  
Vol 43 (22) ◽  
pp. no-no
Author(s):  
Jean-Francois Briere ◽  
Sylvain Oudeyer ◽  
Vincent Dalla ◽  
Vincent Levacher
Keyword(s):  
Ion Pairing ◽  
Recent Advances ◽  
Asymmetric Organocatalysis

NHCs in Asymmetric Organocatalysis: Recent Advances in Azolium Enolate Generation and Reactivity

Synthesis ◽  
2012 ◽  
Vol 44 (15) ◽  
pp. 2295-2309 ◽  
Author(s):  
Andrew Smith ◽  
James Douglas ◽  
Gwydion Churchill
Keyword(s):  
Recent Advances ◽  
Asymmetric Organocatalysis
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