Patent ID: 6420610
Filing Date: 2002-07-16
Classification: G03C,Y10S

Abstract:
An aromatic-aldehyde compound, represented by the following formula (4):formula (4) wherein R2 represents a hydroxyl group, a halogen atom, an alkyl group, a cycloalkyl group, an aryl group, a heterocyclic group, an alkoxy group, an aryloxy group, an acylamino group, a sulfonylamino group, an unsubstituted amino group, a monoalkylamino group, a dialkylamino group, an arylamino group, or an alkylarylamino group; or R2's may bond together to represent a 5- or 6-membered ring, in some cases; Y is positioned in the ortho position or the para position with respect to the formyl group and represents a methylene group substituted by at least one selected from a group consisting of an alkylthio group, an arylthio group, an acyloxy group, a chlorocarbonyloxy group, an alkoxycarbonyloxy group, and an aminocarbonyloxy group; r1 is an integer of 0 to 3; and, when r1 is 2 or more, R2's are the same or different.