Diphenyl sulfone derivative and recording material using the same

摘要: PURPOSE: To obtain a new diphenyl sulfone derivative useful for improving the preservation stability such as plasticizer resistance of colored image. CONSTITUTION: This compound is formula I [Y 1-12C hydrocarbon, etc.; R , and are each lower alkyl, (m) 0, 1 or 2; (n), (p), (q) (r) l, 2, 3 4, with proviso that may be different when >=2], e.g. 1,1- bis[4-(4-hydroxyphenylsulfonyl)phenoxy]methane. A cf II reacted III (X halogen) in presence basic substance two-layer system water solvent an organic to afford exemplified represented by IV.