Organic salts and method for producing chiral organic compounds
AssigneeStudiangesellschaft Kohle mbH
InventorsBenjamin List, Sonja Mayer, Martin Nolwenn, Wang Xingwang
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Abstract
The invention relates to a method for producing chiral organic compounds by asymmetric catalysis, using ionic catalysts comprising a chiral catalyst anion. The claimed method is suitable for reactions which are carried out over cationic intermediate stages, such as iminium ions or acyl pyridinium ions. The invention enables the production of chiral compounds with high ee values, that until now could only be obtained by means of costly purification methods.
Claims6
A process for preparing chiral organic compounds comprising conducting an asymmetric catalysis reaction that proceeds via cationic intermediates using an ionic catalyst, wherein the catalyst anion of the ionic catalyst is chiral and the catalyst cation is selected from the group consisting of NH4+, primary, secondary and tertiary ammonium salts, imidazol (in)ium salts, triazolium salts, amidinium salts, pyridinium salts, thiazol(in)ium salts, guanidinium salts, quarternary ammonium salts, and quaternary phosphonium salts.
Dependencies are inferred from the claim text.