Results 171 to 180 of about 12,256 (221)

Asymmetric Organocatalysis

ChemMedChem, 2007
AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Stefan, Jaroch, Hilmar, Weinmann, Kirsten, Zeitler   +2 more
  +5 more sources

Asymmetric Organocatalysis

ChemInform, 2005
AbstractFor Abstract see ChemInform Abstract in Full Text.
Seayad, J., List, B.
  +7 more sources

Enantioselective Organocatalysis

Angewandte Chemie International Edition, 2001
The last few years have witnessed a spectacular advancement in new catalytic methods based on metal-free organic molecules. In many cases, these small compounds give rise to extremely high enantioselectivities. Preparative advantages are notable: usually the reactions can be performed under an aerobic atmosphere with wet solvents.
Peter I., Dalko, Lionel, Moisan
openaire   +2 more sources

Atroposelective Organocatalysis

Angewandte Chemie International Edition, 2011
The stereochemical phenomenon that arises from hindered rotation around bonds in nonplanar molecules is termed atropoisomerism.] The presence of a stereogenic axis is the distinct feature in these molecules. One type of atropoisomeric molecule is generated when bulky substituents are placed at the ortho positions of an aryl ring such that there is ...
COZZI, PIER GIORGIO, E. Emer, GUALANDI, ANDREA   +2 more
openaire   +3 more sources

Enantioselective organocatalysis

Drug Discovery Today, 2007
Enantioselective organocatalysis has emerged as a powerful synthetic paradigm that is complementary to metal-catalysed transformations and has accelerated the development of new methods to make diverse chiral molecules. The operational simplicity, ready availability of catalysts and low toxicity associated with organocatalysis makes it an attractive ...
Matthew J, Gaunt, Carin C C, Johansson, Andy, McNally, Ngoc T, Vo   +3 more
openaire   +2 more sources

Green Asymmetric Organocatalysis

ChemSusChem, 2020
AbstractAsymmetric organocatalysis is becoming one of the main tools for the synthesis of chiral compounds that are needed as medicines, crop protection agents, and other bioactive molecules. It can be effectively combined with various green chemistry methodologies.
Dominika Krištofíková, Viktória Modrocká, Mária Mečiarová, Radovan Šebesta   +3 more
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Organocatalysis with dendrimers

Chemical Society Reviews, 2012
This review gives an overview of the use of dendrimers and dendrons as organocatalysts, i.e. as catalysts in the absence of any metal. A large variety of dendrimeric structures have already been used for such a purpose, varying in size (generation), type and location (core or surface) of the organocatalytic entities, and overall chemical composition ...
Anne-Marie, Caminade, Armelle, Ouali, Michel, Keller, Jean-Pierre, Majoral   +3 more
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Deconstructing Covalent Organocatalysis

Angewandte Chemie International Edition, 2015
AbstractModern organocatalysis has rapidly evolved into an essential component of contemporary organic synthesis. One of the most distinctive aspects of organocatalytic processes is the biomimetic nature in which the catalyst engages the substrate, often forming covalently bound intermediates in a manner reminiscent of enzyme catalysis.
Mareike C, Holland, Ryan, Gilmour
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Enantioselective Phosphine Organocatalysis

Synlett, 2009
The broad potential synthetic usefulness of phosphine-promoted reactions has stimulated many recent investigations on enantioselective variants of known reactions of this family, as well as the search for new, specifically designed, chiral phosphorus catalysts.
Marinetti, A., Voituriez, A.
openaire   +1 more source

Alkynes in Organocatalysis

Asian Journal of Organic Chemistry, 2014
AbstractIn this Focus Review, a selection of organocatalyzed reactions in which alkynes have been used are presented. Catalysis by tertiary and secondary amines, by phase‐transfer catalysis, by phosphines and carbenes, as well as bifunctional and multiple catalysis are discussed.
SALVIO, RICCARDO, MOLITERNO, MAURO, BELLA, Marco   +2 more
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