申请人:Ricoh Company, Ltd.
公开号:US04332948A1
公开(公告)日:1982-06-01
Hydrazone compounds having the general formula ##STR1## wherein Ar is selected from the group consisting of a naphthalene ring radical, substituted naphthalene ring radicals, an anthracene ring radical, substituted anthracene ring radicals, styryl, substituted styryls, a pyridine radical, a furan ring radical and a thiophene ring radical. The hydrazone compounds can be prepared by allowing 1-methyl-1-phenylhydrazine having the formula ##STR2## to react with an aldehyde represented by the general formula Ar-CHO, wherein Ar is the same as mentioned above at a substantially equal molar ratio in an organic solvent selected from the group consisting of lower alcohols, cyclic ethers, cellosolves, N,N-dimethylforamide and acetic acid, in the presence of an acid catalyst, by heating and refluxing the reaction mixture. The hydrazone compounds are extremely useful as charge transport materials for use in electrophotographic photoconductors of the type comprising an electroconductive support material and a photosensitive layer containing a charge generation material and a charge transport material.
具有一般式##STR1##的腙酮化合物,其中Ar选自以下组中的一组:萘环基,取代萘环基,蒽环基,取代蒽环基,苯乙烯基,取代苯乙烯基,吡啶基,呋喃环基和噻吩环基。可以通过在有机溶剂中的存在下,通过加热和回流反应混合物,让具有式##STR2##的1-甲基-1-苯基肼与通式Ar-CHO表示的醛反应,其中Ar与上述相同,反应物的摩尔比几乎相等,存在酸催化剂。这些腙酮化合物非常有用,可用作电子照相导电层的电荷传输材料,该电子照相导电层包含电导支撑材料和含有电荷发生材料和电荷传输材料的感光层。