Organic compounds -- part of the class 532-570 series – Organic compounds – Heavy metal containing
Reexamination Certificate
2011-07-12
2011-07-12
Gonzalez, Porfirio Nazario (Department: 1621)
Organic compounds -- part of the class 532-570 series
Organic compounds
Heavy metal containing
C556S014000, C562S496000
Reexamination Certificate
active
07977499
ABSTRACT:
Abstract Compounds of the formula (I) in the form of racemates, enantiomerically pure diastereomers or a mixture of diastereomers, where the radicals R1are identical or different and are each C1-C4-alkyl; m is 0 or an integer from 1 to 4; n is 0 or an integer from 1 to 3; p is 0 or an integer from 1 to 5; R2is an aromatic hydrocarbon radical or a C-bonded heterohydrocarbon radical and R3is an aliphatic or C-bonded heteroaliphatic hydrocarbon radical; R2and R3are identical or different and are each an aliphatic or C-bonded heteroaliphatic hydrocarbon radical; R4is an unsubstituted or C1-C6-alkyl-, C1-C6-alkoxy- or halogen-substituted hydrocarbon radical; and A is a secondary amino group, are ligands for metal complexes which are suitable as catalysts for homogeneous enantioselective hydrogenation.
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Chen Weiping
Nettekoven Ulrike
Pugin Benoît
Spiindler Felix
Gonzalez Porfirio Nazario
Solvias AG
Wenderoth , Lind & Ponack, L.L.P.
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