ChemInform Abstract: Development of Novel Lewis Acid Catalysts for Selective Organic Reactions in Aqueous Media

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a Chem...

K Shu，K Manabe - 《Cheminform》

Recognition and activation by ureas and thioureas: stereoselective reactions using ureas and thioureas as hydrogen-bonding donors.

Hydrogen-bonding interaction plays a crucial role in the molecular recognition and activation processes of various biologically important reactions that ar...

Y Takemoto - 《Organic & Biomolecular Chemistry》

Enantioselective Synthesis of ??-Amino Nitriles from N -Benzhydryl Imines and HCN with a Chiral Bicyclic Guanidine as Catalyst

ChemInform is a weeklying Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInformof ...

EJ Corey，MJ Grogan - 《Organic Letters》

A chiral primary amine thiourea catalyst for the highly enantioselective direct conjugate addition of alpha,alpha-disubstituted aldehydes to nitroalkenes.

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a Chem...

MP Lalonde，Y Chen，EN Jacobsen - 《Cheminform》

Asymmetric organic catalysis with modified cinchona alkaloids

Insights into the role played by modified cinchona alkaloids in the Sharpless asymmetric dihydroxylation inspired studies of modified cinchona alkaloids as...

SK Tian，Y Chen，D Li - 《Accounts of Chemical Research》

Ambifunctional cooperative catalysts

Insights into the role played by modified cinchona alkaloids in the Sharpless asymmetric dihydroxylation inspired studies of modified cinchona alkaloids as...

Gareth，J.，Rowlands - 《Tetrahedron》

Asymmetric Organocatalytic Henry Reaction

The nitroaldol (Henry) reaction between aromatic aldehydes and nitromethane can be carried out in high yields and enantiomeric excess by using a novel Cinc...

T Marcelli，RNSVD Haas，JHV Maarseveen，... - 《Angewandte Chemie International Edition》

Hydrogen bonding: Single enantiomers from a chiral-alcohol catalyst

Hydrogen bonding acts as a ubiquitous glue to sustain the intricate architecture and functionality of proteins, nucleic acids and many supramolecular assem...

Y Huang，AK Unni，AN Thadani，... - 《Nature》

Enantioselective organocatalytic Michael addition of malonate esters to nitro olefins using bifunctional cinchonine derivatives.

A family of 9-amino(9-deoxy) epicinchonine derivatives, possessing a range of mono- and bidentate hydrogen bond donor groups at the 9-position, were synthe...

Jinxing，Ye，J Darren，... - 《Chemical Communications》

Asymmetric Catalytic Mannich Reactions Catalyzed by Urea Derivatives:  Enantioselective Synthesis of β-Aryl-β-Amino Acids

Highly enantioselective addition reactions between silyl ketene acetals and N-Boc aldimines are catalyzed by the thiourea-based catalyst 1c. Extraordinary scope is observed in this methodology with regard to the imine substrate, with ary...

Anna，G.，Wenzel，... - 《Journal of the American Chemical Society》