Organic compounds -- part of the class 532-570 series – Organic compounds – Unsubstituted hydrocarbyl chain between the ring and the -c-...
Reexamination Certificate
2005-08-09
2005-08-09
Raymond, Richard L. (Department: 1624)
Organic compounds -- part of the class 532-570 series
Organic compounds
Unsubstituted hydrocarbyl chain between the ring and the -c-...
C546S245000, C546S312000, C546S316000, C548S195000, C548S200000, C548S326500, C548S333500, C548S965000, C548S966000, C549S069000, C549S078000, C549S480000, C549S487000, C564S144000
Reexamination Certificate
active
06927290
ABSTRACT:
There is disclosed an advantageous mixed acid anhydride production method of formula (1):in-line-formulae description="In-line Formulae" end="lead"?R1C(O)OY(O)n(R2)p (1)in-line-formulae description="In-line Formulae" end="tail"?wherein R1, R2and Y denote the same as defined below, n and p denote an integer of 1 or 2, which is characterized by adding a carboxylic acid of formula (2);in-line-formulae description="In-line Formulae" end="lead"?R1COOH (2)in-line-formulae description="In-line Formulae" end="tail"?wherein R1denotes a hydrogen atom, an optionally substituted alkyl group or the like, an organic base to a solution of a carboxylic acid activating agent of formula (3);in-line-formulae description="In-line Formulae" end="lead"?(R2)pY(O)nX (3)in-line-formulae description="In-line Formulae" end="tail"?wherein R2denotes an optionally substituted aliphatic hydrocarbyl group or the like, Y denotes a carbon atom, a phosphorus atom, or a sulfur atom, and X denotes a chlorine atom or the like.
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Kurimoto Isao
Miki Takashi
Ushio Hideki
Raymond Richard L.
Sumitomo Chemical Company Limited
Tucker Zachary C.
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