Rhone-poulenc Chimie

Societe D'expansion Scientifique Expansia

Jacques Daunis

Robert Jacquier

Bernard Calas

Michel Follet

Christian Aspisi

Monique Calmes

Joseph Parello

The present invention relates to chiral supports and to their use in the asymmetric synthesis, deracemization and optical inversion of organic chiral compounds. In particular, the supports are used in combination with thermal equilibration of a species having a reactive achiral portion. Preferably, these supports are obtained by the copolymerization of at least one chiral unit and at least one functionalizing unit or by the polymerization of at least one chiral unit which is a source of said functionalizing unit. Optionally, a crosslinking agent is utilized. By utilizing these supports and thermal equilibration, excess enantiomers can be produced.

Chiral polymers for the production of excess enantiomers

The present invention relates to chiral polymers and to their uses for operations of asymmetric synthesis, deracemization and optical inversion. These polymers are characterized in that they comprise:

Chiral polymers for the synthesis of pure enantiomers of amino acids

The invention relates to new reticulated statistic acrylic copolymers that may be used in a very wide range of solvents (water, methylene chloride, chloroform, methanol, ethanol, dimethylformamide, pyridine,) stable between pH 1 and pH 14, to preparation process thereof and to their use in ion exchange chromatography.

Acrylic copolymers of N-acryloylpolymethyleneimines or

The present invention relates to new amino-functionalized acrylic copolymers, their preparation and their use in peptide synthesis.

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Montpeller, France

Jacques Daunis