Monoazo compounds and process for dyeing or printing fiber materials using the same

摘要

A monoazo compound useful for dyeing or printing a fiber material represented by the following general formula (I): <IMAGE> (I) wherein R1 represents a hydrogen atom or alkyl; U1 and U2 represent a group of the following general formula (U1), (U2) or (U3): <IMAGE> (U1) <IMAGE> (U2) <IMAGE> (U3) wherein Y1, Y2and Y3 represent -CH=CH2 or -CH2CH2Z wherein Z represents a group which can be eliminated by the action of an alkali; and X1 and X2 represent halogeno, pyridinio or a group of the following general formula (X1), (X2), (X3) or (X4): <IMAGE> (X1) <IMAGE> (X2) OR9 (X3) SR10 (X4) or a salt thereof.