| 摘要 |
A print-out composition containing a leuco dye and a photooxidizing agent is described, said print-out composition containing at least one carbazomethane compound represented by formula (I) as the leuco dye <IMAGE> (I) wherein Y represents an amino group-substituted phenyl group represented by formula (Ia) <IMAGE> (Ia) or an indolyl group represented by formula (Ib) <IMAGE> (Ib) wherein X1 and X2 each represents a hydrogen atom, an unsubstituted alkyl group, or an alkyl group substituted by a halogen atom, a hydroxy group, a cyano group, or a lower alkoxy group, said alkyl group having up to 12 carbon atoms, a cycloalkyl group, a phenyl group, a benzyl group, or a phenyl or benzyl group substituted by a halogen atom, a lower alkyl group, or a lower alkoxy group, or said X1 and X2 together may form a 5-membered or 6-membered heterocyclic group together with the nitrogen atom bonded thereto; X3 represents a hydrogen atom, a halogen atom, a nitro group, a lower alkyl group, or a lower alkoxy group; R1 and Z1 each represents a hydrogen atom, an unsubstituted alkyl group or an alkyl group substituted by a halogen atom having up to 12 carbon atoms, a hydroxy group, a cyano group, or a lower alkoxy group, an alkenyl group having up to 12 carbon atoms, an acyl group having from 1 to 12 carbon atoms, a phenyl group, a benzyl group, or a phenyl or benzyl group substituted by a member selected from the group consisting of a halogen atom, a lower alkyl group, a lower alkoxy group, and a nitro group; Z2 represents a hydrogen atom, a lower alkyl group, or a phenyl group; and rings A, B, and D each may be further substituted by a cyano group, a nitro group, a halogen atom, a lower alkyl group, a lower alkoxy group, or a lower alkylcarbonyl group.
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