Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Organic compound containing
Reexamination Certificate
2004-05-07
2009-02-17
Shiao, Rei-tsang (Department: 1626)
Catalyst, solid sorbent, or support therefor: product or process
Catalyst or precursor therefor
Organic compound containing
C556S021000
Reexamination Certificate
active
07491671
ABSTRACT:
Process for preparing a catalyst solution by reacting metal complexes and diphosphines in the presence of an inert organic solvent, which is characterized in that a) an uncharged or cationic metal complex having a TM8 metal as central atom, and b) a salt of a chiral ditertiary diphosphine which has one or two phospholane groups which are bound to a carbon chain having from 2 to 4 carbon atoms and contain anions selected from the group consisting of RCCOO−, RCSO3−, BF4−, PF6−, AsF6−, SbF6−, B(C6F5)4−and B(3,5-bistrifluoromethylphenyl)4−, are reacted with one another, where the ratio of the components a) and b) is from 1:1 to 1:2 and RCis C1-C6-haloalkyl, C5-C10-halocycloalkyl or C6-C10-haloaryl.
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Kesselgruber Martin
Thommen Marc
Shiao Rei-tsang
Solvias AG
Wenderoth , Lind & Ponack, L.L.P.
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