Maleimide derivative

Details Maleimide derivative Maleimide derivative

2011-03-01

2011-03-01

Chu, Yong (Department: 1626)

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

C548S410000, C540S468000, C540S469000

Reexamination Certificate

active

07897787

ABSTRACT:
A compound represented by the following general formula (I):[wherein R1and R2independently represent hydrogen atom, or a group represented by the following formula (A):(wherein X1and X2represent hydrogen atom, an alkyl group, an alkoxy group, or a halogen atom), provided that R1and R2do not simultaneously represent hydrogen atom; R3and R6represent an alkyl group; R4and R7represent hydrogen atom, an alkyl group, carboxy group, an alkoxycarbonyl group, or sulfo group; and R5and R8represents an alkyl group, an aryl group, an alkoxycarbonyl group, a vinyl group, a thienyl group, or a pyrrolyl group], or a salt thereof, which is usable for efficient screening for a chemical substance having applicability as a catalyst of the reaction of Michael addition.

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