Asymmetric organocatalysis mediated by α,α-l-diaryl prolinols: recent advances

2013 ◽  
Vol 49 (37) ◽  
pp. 3821 ◽  
Author(s):  
Sara Meninno ◽  
Alessandra Lattanzi
Keyword(s):  
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

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: 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

Recent advances in asymmetric organocatalysis mediated by bifunctional amine–thioureas bearing multiple hydrogen-bonding donors

2015 ◽  
Vol 51 (7) ◽  
pp. 1185-1197 ◽  
Author(s):  
Xin Fang ◽  
Chun-Jiang Wang
Keyword(s):  
Hydrogen Bonding ◽  
Recent Progress ◽  
Bond Forming ◽  
Mild Conditions ◽  
Recent Advances ◽  
Bond Forming Reactions ◽  
Asymmetric Organocatalysis ◽  
Multiple Hydrogen Bonding

Recent progress in asymmetric organocatalysis, focusing on fine-tunable amine–thiourea catalysis, is described. Design of novel bifunctional amine–thiourea organocatalysts bearing multiple hydrogen-bonding donors and their applications in asymmetric C–C, C–N, and C–S bond-forming reactions under mild conditions are discussed.

Recent Advances in High Dispersion Spectroscopy of Globular Cluster Stars

1988 ◽  
Vol 132 ◽  
pp. 525-530
Author(s):  
Raffaele G. Gratton
Keyword(s):  
Globular Cluster ◽  
Globular Clusters ◽  
High Dispersion ◽  
Photographic Material ◽  
Recent Advances ◽  
Metal Abundances ◽  
Ccd Detectors ◽  
Major Progress

The use CCD detectors has allowed a major progress in abundance derivations for globular cluster stars in the last years. Abundances deduced from high dispersion spectra now correlates well with other abundance indicators. I discuss some problems concerning the derivation of accurate metal abundances for globular clusters using high dispersion spectra from both the old photographic and the most recent CCD data. The discrepant low abundances found by Cohen (1980), from photographic material for M71 giants, are found to be due to the use of too high microturbulences.

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