METHYLOL COMPOUND, ALDEHYDE COMPOUND, METHOD FOR PREPARING THE METHYLOL COMPOUND USING THE ALDEHYDE COMPOUND, AND PHOTORECEPTOR USING THE METHYLOL COMPOUND

摘要

A methylol compound having a specific formula such that two triphenylamine groups each having two methylol groups are connected with each other by an oxygen atom, a methylene group, a vinylene group, or an ethylene group. The methylol compound is preferably prepared by subjecting a corresponding aldehyde compound to a reduction reaction in the presence of a reducing agent. The methylol compound is preferably used as a charge transport material.