Electrophotographic toner

摘要

An electrophotographic toner containing a compound of the following formula (I): <IMAGE> (I) wherein each of X and Y which are independent of each other, is a hydrogen atom, <IMAGE> (wherein each of D1 and D2 is a hydrogen atom or an electron donating group, provided that D1 and D2 are not simultaneously hydrogen atoms, R1 is a hydrogen atom, a halogen atom, an alkyl group, a cycloalkyl group, an aralkyl group, an aryl group, an acyl group, a nitro group, a cyano group or R2SO2- (wherein R2 is a hydroxyl group, an amino group, an alkyl-substituted amino group, an alkyl group, a cycloalkyl group, an aralkyl group, an aryl group or an alkoxy group), and n is 0, 1 or 2, provided that when n is 2, the plurality of R1 may be the same or different), <IMAGE> (wherein D3 is an electron donating group, and R1 and n are as defined above), <IMAGE> (wherein D3, R1 and n are as defined above), <IMAGE> (wherein D3, R1 and n are as defined above) or <IMAGE> wherein D3 is as defined above, and each of R3 and R4 is a hydrogen atom, a halogen atom, an alkyl group, a cycloalkyl group, an aralkyl group, an aryl group, an acyl group, a nitro group or a cyano group), provided that X and Y are not simultaneously hydrogen atoms, and Z is a hydrogen atom, an alkyl group or an aryl group.