Organic compounds -- part of the class 532-570 series – Organic compounds – Carboxylic acids and salts thereof
Reexamination Certificate
2005-01-18
2005-01-18
Zucker, Paul A. (Department: 1621)
Organic compounds -- part of the class 532-570 series
Organic compounds
Carboxylic acids and salts thereof
C562S470000
Reexamination Certificate
active
06844467
ABSTRACT:
Glyceric acid compounds of the formula (I)in-line-formulae description="In-line Formulae" end="lead"?R1R2C(OH)—CR3(OH)—COOX (I)in-line-formulae description="In-line Formulae" end="tail"?where R1, R2and R3are independently hydrogen, C1-12-alkyl, C6-12-aryl, C7-13-alkaryl or C7-13-aralkyl andX is hydrogen, an alkali metal, an alkaline earth metal/2 or NH4,are prepared by saponification of glycidic acid compounds of the formula (II)where Y is NH2or OR4in which R4is C1-12-alkyl or C7-13-aralkyl,with ring-opening addition of water onto the epoxide ring.Preferably, Y is NH2and the glycidamide of the formula (II) which is used is prepared by reacting acrylonitriles of the formula (III)in-line-formulae description="In-line Formulae" end="lead"?R1R2C═CR3CN (III)in-line-formulae description="In-line Formulae" end="tail"?with hydrogen peroxide.
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Database Crossfire Beilstein 'Online! Beilstein Institut zur Foerderung der Chemischen Wissenschaften, Frankfurt am Main, DE Database accession No. 356606, XP002206284.
Database Crossfire Beilstein 'Online! Beilstein Institut zur Foerderung der Chemischen Wissenschaften, Frankfurt am Main, DE Database accession No. 329484, XP002206285.
Database Crossfire Beilstein 'Online! Beilstein Institut zur Foerderung der Chemischen Wissenschaften, Frankfurt am Main, DE Database accession No. 282014, XP002206286.
Bochnitschek Werner
Grosch Georg Heinrich
Kingma Arend Jouke
Neumann Peter
BASF - Aktiengesellschaft
Oblon & Spivak, McClelland, Maier & Neustadt P.C.
Zucker Paul A.
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