The synthesis and spectroscopic properties of some novel photochromic 3H-naphtho[2,1-b]pyrans are reported. Varying the size of an ortho-substituent on one of the geminal aryl rings allows the rate of fade of the photogenerated color to be controlled.
|Number of pages||13|
|Early online date||17 Feb 2003|
|Publication status||Published - 1 Apr 2003|