Organic compounds -- part of the class 532-570 series – Organic compounds – Halogen containing
Reexamination Certificate
2006-03-17
2010-10-05
Parsa, Jafar (Department: 1621)
Organic compounds -- part of the class 532-570 series
Organic compounds
Halogen containing
C544S309000, C544S314000, C548S532000, C560S125000, C560S227000, C562S852000
Reexamination Certificate
active
07807858
ABSTRACT:
It was found that a fluoro derivative can be produced by reacting a hydroxy derivative with sulfuryl fluoride (SO2F2) in the presence of an organic base or in the presence of an organic base and “a salt or complex comprising an organic base and hydrogen fluoride”. According to the present production process, it is not necessary to use perfluoroalkanesulfonyl fluoride, which is not preferable in industrial use, and it is possible to advantageously produce optically-active fluoro derivatives, which are important intermediates of medicines, agricultural chemicals and optical materials, specifically 4-fluoroproline derivatives, 2′-deoxy-2′-fluorouridine derivatives, optically-active α-fluorocarboxylate derivatives, and the like, even in a large scale.
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Inomiya Kenjin
Ishii Akihiro
Mogi Kaori
Ootsuka Takashi
Tsuruta Hideyuki
Central Glass Company Limited
Crowell & Moring LLP
Parsa Jafar
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