Organic compounds -- part of the class 532-570 series – Organic compounds – Heavy metal containing
Reexamination Certificate
2007-12-18
2007-12-18
Nazario-Gonzalez, Porfirio (Department: 1621)
Organic compounds -- part of the class 532-570 series
Organic compounds
Heavy metal containing
C514S492000
Reexamination Certificate
active
11050382
ABSTRACT:
A process for the preparation of diaminocyclohexane-platinum(II)-dicarboxylates has the following steps:B Conversion of K2PtX2with 1,2-diaminocyclohexane (DACH) to (2):C Conversion of (2) with too little quantity of silver salt AgnA to (3):and removal of the resulting AgX precipitate.D Conversion of (3) with a dicarboxylate to (1):F Isolation of the product (1),wherein R1and R2together form a dicarboxylato group, X stands for Cl or I, A for a 1-2-valent anion of a mineral acid, and n stands for 1 or 2.
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The European Search Report.
German Search Report dated Feb. 20, 2004.
Pepels Andreas
Rauter Holger
Schnebeck Ralf-Dieter
Wissmann Friedrich
Nazario-Gonzalez Porfirio
Norris McLaughlin & Marcus PA
W.C. Heraeus GmbH
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