Chiral Brønsted Acid Catalysts. Activation of Methyl 3,3,3-Trifluoropyruvate by Hydroxymethylpyridine-Containing Half-Sandwich Complexes

2014 ◽  
Vol 33 (15) ◽  
pp. 4016-4026 ◽  
Author(s):  
Daniel Carmona ◽  
Pilar Lamata ◽  
Antonio Sánchez ◽  
Pilar Pardo ◽  
Ricardo Rodríguez ◽  
...  
Keyword(s):  
Acid Catalysts ◽  
Bronsted Acid ◽  
Brønsted Acid ◽  
Sandwich Complexes ◽  
Brönsted Acid ◽  
Chiral Bronsted Acid ◽  
Bronsted Acid Catalysts ◽  
Half Sandwich

Half-sandwich complexes of osmium containing guanidine-derived ligands

2020 ◽  
Vol 49 (39) ◽  
pp. 13601-13617
Author(s):  
Amie Parker ◽  
Pilar Lamata ◽  
Fernando Viguri ◽  
Ricardo Rodríguez ◽  
José A. López ◽  
...  
Keyword(s):  
Acid Catalysts ◽  
Bronsted Acid ◽  
Brønsted Acid ◽  
Sandwich Complexes ◽  
Guanidine Derivatives ◽  
Brönsted Acid ◽  
Bronsted Acid Catalysts ◽  
Half Sandwich

The osmium chemistry of guanidine derivatives is explored. The resulting complexes are active Brønsted-acid catalysts for the Friedel–Crafts reaction.

On the Acidity and Reactivity of Highly Effective Chiral Brønsted Acid Catalysts: Establishment of an Acidity Scale

2013 ◽  
Vol 125 (44) ◽  
pp. 11783-11786 ◽  
Author(s):  
Karl Kaupmees ◽  
Nikita Tolstoluzhsky ◽  
Sadiya Raja ◽  
Magnus Rueping ◽  
Ivo Leito
Keyword(s):  
Acid Catalysts ◽  
Bronsted Acid ◽  
Brønsted Acid ◽  
Brönsted Acid ◽  
Highly Effective ◽  
Chiral Bronsted Acid ◽  
Bronsted Acid Catalysts ◽  
Acidity Scale

When gold meets chiral Brønsted acid catalysts: extending the boundaries of enantioselective gold catalysis

2014 ◽  
Vol 50 (96) ◽  
pp. 15124-15135 ◽  
Author(s):  
Suleman M. Inamdar ◽  
Ashok Konala ◽  
Nitin T. Patil
Keyword(s):  
Gold Catalysts ◽  
Gold Catalysis ◽  
Acid Catalysts ◽  
Bronsted Acid ◽  
Brønsted Acid ◽  
One Pot ◽  
Catalytic Systems ◽  
Brönsted Acid ◽  
Chiral Bronsted Acid ◽  
Bronsted Acid Catalysts

This review describes the development in the use of Au(i)/Brønsted acid binary catalytic systems to enable an enantioselective transformation in one-pot that cannot be achieved by gold catalysts alone.

pKa Values of Chiral Brønsted Acid Catalysts: Phosphoric Acids/Amides, Sulfonyl/Sulfuryl Imides, and Perfluorinated TADDOLs (TEFDDOLs)

2011 ◽  
Vol 17 (31) ◽  
pp. 8524-8528 ◽  
Author(s):  
Philipp Christ ◽  
Anita G. Lindsay ◽  
Sonja S. Vormittag ◽  
Jörg-M. Neudörfl ◽  
Albrecht Berkessel ◽  
...  
Keyword(s):  
Acid Catalysts ◽  
Bronsted Acid ◽  
Brønsted Acid ◽  
Pka Values ◽  
Brönsted Acid ◽  
Chiral Bronsted Acid ◽  
Bronsted Acid Catalysts ◽  
Phosphoric Acids
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