申请人:Sterling Drug Inc.
公开号:US04032527A1
公开(公告)日:1977-06-28
Substituted 3,3-diphenylphthalides, useful as color precursors, particularly in the art of pressure-sensitive duplicating systems, are prepared by condensing substituted 2-benzoylbenzoic acids with substituted anilines.
以取代的2-苯甲酰基
苯甲酸与取代的
苯胺缩合制备的3,3-二苯基邻苯二酮衍
生物,可作为颜色前体,特别适用于压敏复写系统的艺术。