Synthesis and photochromic properties of symmetrical aryl ether linked bi- and tri-naphthopyrans

Christopher D. Gabbutt, B. Mark Heron, Alicia C. Instone, Suresh B. Kolla, Kunal Mahajan, Paulo J. Coelho, Luis M. Carvalho

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10 Citations (Scopus)


A range of aryl ether linked benzophenones (8) has been conveniently obtained by nucleophilic displacement of fluoride from 4-fluorobenzophenone with a dihydroxy-benzene or -naphthalene. The linked benzophenones were efficiently transformed in two steps to symmetrically linked naphthopyrans (10d-k). The photochromic response of these novel systems under steady state irradiation is characterised by a two stage fading process and their colourability is only marginally improved over the related monomeric analogues (10a-c).

Original languageEnglish
Pages (from-to)24-34
Number of pages11
JournalDyes and Pigments
Issue number1
Early online date5 Jan 2006
Publication statusPublished - 1 Jan 2008
Externally publishedYes


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