申请人:Hodogaya Chemical Co., Ltd.
公开号:US04521605A1
公开(公告)日:1985-06-04
Carbazole compounds of formula (I) are disclosed, which are useful as photoconductors for electrophotography and fluorescent brightening agent in the field of paints, ##STR1## wherein R represents a C.sub.2.about.4 alkyl group, or a benzyl group; X.sup.1 represents hydrogen, a C.sub.1.about.4 alkyl group, a C.sub.1.about.4 alkoxyl group, a halogen atom, a nitro group, an amino group, a C.sub.1.about.4 alkylamino group or a benzylamino group; and n is an integer 1 or 2. A method of preparing a carbazole compound of formula (II) is also disclosed, in which a phenyl derivative of formula (III) is caused to react with an aldehyde of formula (IV), ##STR2## wherein R represents a C.sub.2.about.4 alkyl group, or a benzyl group; X.sup.2 represents hydrogen, a C.sub.1.about.4 alkyl group, a C.sub.1.about.4 alkoxyl group, a halogen atom, a nitro group; and m is an integer 0 or 1; ##STR3## wherein X.sup.2 represents the same as in the formula (II) and Y represents a triphenylphosphonium group of the formula ##STR4## wherein Z.sup..crclbar. represents a halogen ion, or Y represents a dialkylphosphonate group of the formula --PO(OR').sup.2 wherein R' represents a C.sub.1.about.4 alkyl group; ##STR5## wherein R represents the same as in the formula (III).
公开了化学式(I)的咔唑化合物,这些化合物在电子摄影中作为光导体和在涂料领域中作为荧光增白剂中有用,其中R代表一个C.sub.2到4的烷基或苄基;X^1代表氢、一个C.sub.1到4的烷基、一个C.sub.1到4的烷氧基、一个卤素原子、一个硝基、一个氨基、一个C.sub.1到4的烷基氨基或一个苄基氨基;n是整数1或2。还公开了一种制备化学式(II)的咔唑化合物的方法,其中使化学式(III)的苯衍生物与化学式(IV)的醛发生反应,其中R代表一个C.sub.2到4的烷基或苄基;X^2代表氢、一个C.sub.1到4的烷基、一个C.sub.1到4的烷氧基、一个卤素原子、一个硝基;m是整数0或1;其中X^2代表与化学式(II)中相同的物质,Y代表一个三苯基膦基团的化学式,其中Z.sup..crclbar.代表一个卤离子,或Y代表一个二烷基膦酸酯基团的化学式--PO(OR')^2,其中R'代表一个C.sub.1到4的烷基;其中R代表与化学式(III)中相同的物质。