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Angewandte Chemie International Edition, ISSN 1433-7851, 08/2015, Volume 54, Issue 32, pp. 9414 - 9418
A highly efficient and practical synergistically metal/proton‐catalyzed Conia–ene reaction for the synthesis of bicyclo[3.n.1]alkanones has been developed.... 
enolization | bicyclo[3.n.1]alkanones | synergistic catalysis | cycloheptanone | Conia–ene reaction | Conia-ene reaction | ANNULATION | ALKYLATION | ALLYLATION | 1]alkanones | MECHANISMS | CHEMISTRY, MULTIDISCIPLINARY | n | ANTITUMOR AGENTS | bicyclo | MANNICH-TYPE REACTION | TAXOL | CHEMISTRY | CHIRAL BRONSTED ACID | Catalysis | Carbonyl groups | Synthesis | Nucleophiles
Journal Article
Synlett, ISSN 0936-5214, 01/2006, Issue 1, pp. 147 - 149
Perrin's NMR titration procedure has been used to measure the pK values for several Brønsted acids. These measurements allow a preliminary determination of the... 
NMR titration | Brønsted acid | determination | Chiral proton catalysis
Journal Article
Journal of the American Chemical Society, ISSN 0002-7863, 09/2016, Volume 138, Issue 37, pp. 12297 - 12302
We have developed a new class of cinchonium betaine catalysts bearing both a base moiety and an aromatic moiety as an N-substituent of the quinuclidine motif.... 
AZA-HENRY REACTION | BIOMIMETIC TRANSAMINATION | HYDROGENATION | MANNICH-TYPE REACTION | AMINO-ACID DERIVATIVES | ARYL | CHIRAL AMMONIUM BETAINES | SHIFT REACTION | PHASE-TRANSFER CATALYSTS | ALPHA-NITROCARBOXYLATES | CHEMISTRY, MULTIDISCIPLINARY | Schiff bases | Usage | Catalysts | Isomerization
Journal Article
SYNLETT, ISSN 0936-5214, 01/2006, Issue 1, pp. 147 - 149
Perrin's NMR titration procedure has been used to measure the pK(a) values for several Bronsted acids. These measurements allow a preliminary determination of... 
Bronsted acid | NMR titration | pK(a) | CHEMISTRY, ORGANIC | BASICITY | determination | chiral proton catalysis
Journal Article
The Journal of Organic Chemistry, ISSN 0022-3263, 11/2018, Volume 83, Issue 22, pp. 13973 - 13980
An integral part of modern organocatalysis is the development and application of thiourea catalysts. Here, as part of our program aimed at developing... 
2-AMINOPYRIDINIUM IONS | AXIALLY CHIRAL GUANIDINE | ENANTIOSELECTIVE SYNTHESIS | PROTON CATALYSIS | TETRAHYDROPYRANYLATION | BOND DONOR | ORGANOCATALYSIS | CHEMISTRY, ORGANIC | GLYCOSYLATION | ADDITIONS | DERIVATIVES
Journal Article
European Journal of Organic Chemistry, ISSN 1434-193X, 05/2014, Volume 2014, Issue 13, pp. 2633 - 2646
Dual hydrogen‐bond donor (HBD) scaffolds can be strategically designed to enable their optimal performance as catalysts. The deliberate installation of... 
Catalyst design | Hydrogen bonds | Organocatalysis | Asymmetric catalysis | AZA-HENRY REACTION | DIELS-ALDER REACTIONS | 1,3-DICARBONYL COMPOUNDS | CHEMISTRY, ORGANIC | CHIRAL PROTON CATALYSIS | DYNAMIC KINETIC RESOLUTION | THIOOXIME S-OXIDES | MOLECULAR RECOGNITION | ANION RECOGNITION | LEWIS-ACID COORDINATION | Catalysis | Catalysts | Hydrogen | Hydrogen bonding | Bonds
Journal Article
The Journal of Organic Chemistry, ISSN 0022-3263, 01/2015, Volume 80, Issue 2, pp. 828 - 835
Journal Article
Journal of the American Chemical Society, ISSN 0002-7863, 12/2008, Volume 130, Issue 49, pp. 16464 - 16465
Journal Article
Journal of the American Chemical Society, ISSN 0002-7863, 07/2008, Volume 130, Issue 27, pp. 8606 - 8607
Highly anti-selective and enantioselective nitro-Mannich reactions have been achieved for a broad spectrum of substrates catalyzed by chiral bifunctional... 
AZA-HENRY REACTION | ACID-DERIVATIVES | COMPLEX | ORGANOCATALYSTS | REDUCTION | IMINES | 1,2-DIAMINES | SULFONES | CHIRAL PROTON CATALYSIS | STEREOSELECTIVE-SYNTHESIS | CHEMISTRY, MULTIDISCIPLINARY | Urea | Schiff bases | Amines | Analysis | Chirality | Organometallic compounds | Chemical properties | Catalysis | Hydrogen bonding
Journal Article
Journal of the American Chemical Society, ISSN 0002-7863, 06/2018, Volume 140, Issue 23, pp. 7083 - 7087
Journal Article
Organic Letters, ISSN 1523-7060, 2019, Volume 21, Issue 11, pp. 4370 - 4373
A highly regio- and enantioselective synthesis of 1,2-diamine derivatives from gamma-substituted allylic pivalamides using copper-catalyzed hydroamination is... 
ASYMMETRIC-SYNTHESIS | MANNICH-TYPE REACTION | IMINES | RING-OPENING REACTIONS | ALLYLATION | DIAMINATION | CHEMISTRY, ORGANIC | ALPHA | CHIRAL PROTON CATALYSIS | VICINAL DIAMINES | ADDITIONS
Journal Article
Organic Letters, ISSN 1523-7060, 01/2016, Volume 18, Issue 2, pp. 188 - 191
A new class of readily prepared thiourea catalysts with one or more positively charged centers and no new hydrogen-bonding sites are exploited in several... 
2-AMINOPYRIDINIUM IONS | AXIALLY CHIRAL GUANIDINE | HYDROGEN | ORGANOCATALYSTS | ENANTIOSELECTIVE SYNTHESIS | PROTON CATALYSIS | ACIDITIES | BOND DONOR CATALYSTS | CHEMISTRY, ORGANIC | DERIVATIVES | METAL-FREE | Molecular Structure | Catalysis | Thiourea - chemistry | Hydrogen Bonding
Journal Article
Organic Letters, ISSN 1523-7060, 05/2008, Volume 10, Issue 9, pp. 1731 - 1734
A direct asymmetric organocatalytic aza-Henry reaction has been developed in which a new bifuctional Brønsted-acid-catalyzed activation of nitroalkanes... 
IMINES | DIELS-ALDER REACTION | CHEMISTRY, ORGANIC | TRANSFER HYDROGENATION | 1,2-DIAMINES | CHIRAL PROTON CATALYSIS | FRIEDEL-CRAFTS REACTION | ORGANOCATALYTIC REDUCTION | VICINAL DIAMINES | METAL-FREE | NITRO-MANNICH REACTION
Journal Article
JOURNAL OF ORGANIC CHEMISTRY, ISSN 0022-3263, 08/2014, Volume 79, Issue 15, pp. 6913 - 6938
The finding by scientists at Hoffmann-La Roche that cis-imidazolines could disrupt the protein protein interaction between p53 and MDM2, thereby inducing... 
ALPHA-AMIDO SULFONES | P53-MDM2 INTERACTION | AZA-HENRY REACTION | CHEMISTRY, ORGANIC | ASYMMETRIC MANNICH REACTIONS | CHIRAL PROTON CATALYSIS | SMALL-MOLECULE ANTAGONISTS | P53 PATHWAY | BRONSTED-ACID | CANCER-THERAPY | ANION-BINDING
Journal Article
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