Organic compounds -- part of the class 532-570 series – Organic compounds – Chalcogen in the nitrogen containing substituent
Reexamination Certificate
2005-05-31
2005-05-31
Raymond, Richard L. (Department: 1624)
Organic compounds -- part of the class 532-570 series
Organic compounds
Chalcogen in the nitrogen containing substituent
C544S108000, C544S404000, C548S145000, C548S215000, C548S300100, C564S282000, C564S290000, C564S291000, C564S292000, C564S295000, C564S296000
Reexamination Certificate
active
06900313
ABSTRACT:
The invention relates to chiral ionic liquids of the general formulain-line-formulae description="In-line Formulae" end="lead"?[A]n+[Y]n−,in-line-formulae description="In-line Formulae" end="tail"?whereby n=1 or 2, the anion [Y]n−is the anion of an organic or inorganic proton acid and the cation [A]+an optically active organic ammonium cation with up to 50 carbon atoms, at least one chirality center and at least one functional group that can produce a coordination by forming hydrogen bridges or by providing free electron pairs. At least one chirality center is provided with a distance of up to 5 atomic bonds from the functional group. The invention also relates to a method for producing said chiral ionic liquids and to the use thereof in methods for the asymmetric synthesis, the asymmetric catalysis and for separating racemates.
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Bolm Carsten
Bösmann Andreas
Keim Wilhelm
Wasserscheid Peter
Child, Jr. John S.
Hagan Patrick J.
Tucker Zachary C.
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