Organic compounds -- part of the class 532-570 series – Organic compounds – Oxygen containing
Reexamination Certificate
2005-08-02
2005-08-02
Richter, Johann (Department: 1621)
Organic compounds -- part of the class 532-570 series
Organic compounds
Oxygen containing
C568S316000, C568S346000, C568S348000, C568S397000, C568S020000, C564S123000, C564S161000, C564S209000
Reexamination Certificate
active
06924397
ABSTRACT:
The present invention relates to a process for the preparation of α-chloroketones from readily available alkyl esters by the reaction of a sulfoxonium ylide on said alkyl esters to generate a keto sulfoxonium ylide that is in turn treated with anhydrous HCl.
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Nugent William Aloysius
Wang Dengjin
Baxam Deanna L.
Bristol--Myers Squibb Company
Gu Henry H.
Witherspoon Sikarl A.
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