Organic compounds -- part of the class 532-570 series – Organic compounds – Carboxylic acid esters
Reexamination Certificate
2005-08-05
2008-12-09
Zucker, Paul A (Department: 1621)
Organic compounds -- part of the class 532-570 series
Organic compounds
Carboxylic acid esters
C560S227000, C568S812000, C568S842000
Reexamination Certificate
active
07462734
ABSTRACT:
The present invention relates to a process for producing an optically active α-fluorocarboxylate derivative represented by the formula [2],by reacting an optically active α-hydroxycarboxylate derivative with trifluoromethanesulfonyl fluoride (CF3SO2F) in the presence of an organic base, in the formula [2], R represents a straight-chain or branched-chain alkyl group of a carbon number of 1 to 12; one of or two by any combination of aromatic hydrocarbon groups, unsaturated hydrocarbon groups, straight-chain or branched alkoxy groups of a carbon number of 1 to 6, aryloxy groups, halogen atoms (fluorine, chlorine, bromine and iodine), protected carboxyl groups, protected amino groups or protected hydroxyl group can be substituted on any carbon atoms of the alkyl group; R1represents a straight-chain or branched-chain alkyl group of a carbon number of 1 to 8; any carbon atoms of the alkyl groups of R and R1may form a covalent bond; and * represents an asymmetric carbon.
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Inomiya Kenjin
Ishii Akihiro
Kuriyama Yokusu
Ootsuka Takashi
Tsuruta Hideyuki
Central Glass Company Limited
Crowell & Moring LLP
Zucker Paul A
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