Organic compounds -- part of the class 532-570 series – Organic compounds – Oxygen containing
Reexamination Certificate
2003-08-27
2008-03-11
Witherspoon, Sikarl A. (Department: 1621)
Organic compounds -- part of the class 532-570 series
Organic compounds
Oxygen containing
C568S437000
Reexamination Certificate
active
07342138
ABSTRACT:
A process for producing an aromatic aldehyde compound represented by a general formula (3):(wherein R′ and n are as defined below), which comprises reacting a benzyl compound represented by a general formula (1):(wherein R may represents hydrogen atom, n represents an integer of 1 to 6, and R′ may be the same or different and represent a hydrogen atom or an alkyl gorup, an alkyl group or a phenyl group which may have a substituent) with an oxy-compound of bromine represented by the formula (2):in-line-formulae description="In-line Formulae" end="lead"?MBrOm (2)in-line-formulae description="In-line Formulae" end="tail"?(wherein M represents a hydrogen atom or a metal atom, and m represents an integer of 1 to 3) in the presence of an acid catalyst. According to this method, an aromatic aldehyde compound can be produced in high selectivity by a simple operation without using an expensive catalyst or transition metal.
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Arent & Fox LLP
Ihara Chemical Industry Co. Ltd.
Witherspoon Sikarl A.
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