申请人:Hodogaya Chemical Co., Ltd.
公开号:US04594601A1
公开(公告)日:1986-06-10
A fluoran compound represented by general formula: ##STR1## where each of R.sub.1 and R.sub.2 is a C.sub.1 -C.sub.4 alkyl group, a cycloalkyl group or an aryl group, or R.sub.1 and R.sub.2 may form together with N a saturated ring, R.sub.3 is a benzyl or phenyl group which may be substituted, and R.sub.4 is a C.sub.1 -C.sub.4 alkyl group.
一种由通式表示的氟兰化合物:## STR1 ## 其中R.sub.1和R.sub.2中的每一个都是C.sub.1-C.sub.4烷基,环烷基或芳基,或R.sub.1和R.sub.2可以与N一起形成饱和环,R.sub.3是苄基或苯基,可以被取代,R.sub.4是C.sub.1-C.sub.4烷基。