PHOTOCHROMIC DIARYLETHENE-BASED COMPOUND SUBSTITUTED BY ISOXAZOLE GROUP

摘要

PROBLEM TO BE SOLVED: To provide a photochromic diarylethene-based compound which has excellent dispersibility in various polymer media and can produce together with the polymer medium a thin film exhibiting excellent mechanical strengths and excellent photochromic characteristics, when irradiated with UV light.;SOLUTION: The isooxazole group-substituted photochromic diarylethene- based compound represented by the general formula 1 [R¹ is a bonding line, oxygen atom, or a 1 to 3C alkylene substituted or not substituted by one or more fluorine atoms; R² is H, (CR⁴H)_nOH or C₆(R⁵)_mH_l; R³ is selected from phenylisoxazole, hydroxymethylisioxazole, acetyl, H, OH, and phenyl; R⁴ is a 1 to 10C alkyl; R⁵ is the same as R⁴, or Cl, nitro or BY; X and Y are each independently O, N or S; Z is substituted or non-substituted methylene or carbonyl; (n), (m) and (l) are each an integer of 1 to 5].;COPYRIGHT: (C)2002,JPO