Synthesis and polymerization of 6-(alkyloxyphenyl)carbonyl substituted spirobenzopyran

Yoon Ki Choi, Eunkyoung Kim, Sam Rok Keum

Research output: Contribution to journalArticle

8 Citations (Scopus)


6-(Alkyloxyphenyl)carbonyl substituted spirobenzopyran (COSP) was synthesized from 6-(hydroxyphenylcarbonyl)substituted salicylaldehyde and indoline, followed by alkylhydroxylation with 6-chloro-1-hexanol. Resulting COSP was modified to a methacryloyl substituted COSP derivative, which are polymerized with styrene (ST) and butylmethacrylate (BMA) to give a terpolymer of COSP-ST-BMA (PCOSP). COSP monomers and PCOSP were thermally more stable than 6-nitrospirobenzopyran. Fast photochromic coloration was observed from a COSP doped polymer or PCOSP film upon irradiation with a light of 340 nm.

Original languageEnglish
Pages (from-to)8861-8864
Number of pages4
JournalTetrahedron Letters
Issue number48
Publication statusPublished - 1998 Nov 26

All Science Journal Classification (ASJC) codes

  • Biochemistry
  • Drug Discovery
  • Organic Chemistry

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