Organic compounds -- part of the class 532-570 series – Organic compounds – Sulfur containing
Reexamination Certificate
2007-03-02
2009-12-29
Witherspoon, Sikarl A (Department: 1621)
Organic compounds -- part of the class 532-570 series
Organic compounds
Sulfur containing
C568S034000
Reexamination Certificate
active
07638654
ABSTRACT:
A novel 1-fluoro-1,1-bis(arylsulfonyl)methane is provided which is useful in monofluoromethylation. Also provided is a production method thereof.A method for producing a fluorobis(arylsulfonyl)methane, the method including the steps of: treating a bis(arylsulfonyl)methane represented by the following formula (1),in-line-formulae description="In-line Formulae" end="lead"?(ArSO2)2CH2 (1)in-line-formulae description="In-line Formulae" end="tail"?(wherein Ar represents a substituted or unsubstituted phenyl group or naphthyl group)with a base; and then adding a fluorination reagent thereto, to produce fluorobis(arylsulfonyl)methane represented by the following formula (2)in-line-formulae description="In-line Formulae" end="lead"?(ArSO2)2CHF (2)in-line-formulae description="In-line Formulae" end="tail"?(wherein Ar is defined as above), anda fluorobis(arylsulfonyl)methane (2) represented by the above formula (2), which is a novel compound that is very useful in producing a monofluoromethyl.
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Fukuzumi Takeo
Nakamura Shuichi
Shibata Norio
Toru Takeshi
Nagoya Institute of Technology
Tosoh F-Tech, Inc.
Wenderoth , Lind & Ponack, L.L.P.
Witherspoon Sikarl A
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