Abstract
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 language | English |
|---|---|
| Pages (from-to) | 24-34 |
| Number of pages | 11 |
| Journal | Dyes and Pigments |
| Volume | 76 |
| Issue number | 1 |
| Early online date | 5 Jan 2006 |
| DOIs | |
| Publication status | Published - 1 Jan 2008 |
| Externally published | Yes |