Synthesis and photochromic properties of 2H,9H-indeno[1,2-f]- and 3H,7H-indeno[2,1-i]-naphtho[2,1-b]pyrans

Christopher D. Gabbutt, B. Mark Heron, Craig A. Mars, Steven M. Partington

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)


Expedient syntheses of the 3-hydroxy- and 6-hydroxy- derivatives of 11H-benzo[a]-fluoren-11-one, obtained via Suzuki-Miyaura couplings are described. Reactions of these phenols with 1,1-diarylprop-2-yn-1-ols give indeno[2,1-i]- and indeno[1,2-f]-naphtho[2,1-b]pyranones respectively. The photochromic properties of these and the reduced derivatives are reported. A rationale for the pronounced hypsochromic shift in λmax of the photomerocyanine from a 2H,9H-indeno[1,2-f]naphtho[2,1-b]pyran is presented.

Original languageEnglish
Pages (from-to)167-172
Number of pages6
JournalMolecular Crystals and Liquid Crystals
Issue number1
Publication statusPublished - 1 Dec 2005
Externally publishedYes


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