877203-56-0Relevant academic research and scientific papers
1,3-Bisarylbutadienes: Novel thermally irreversible photochromic system
Yokoyama, Yasushi,Shrestha, Sujen Man,Yokoyama, Yayoi
, p. 133/[433]-139/[439] (2005)
Novel thermally irreversible photochromic compounds 1O, 2O and 3O based on 1,3-bisarylbutadiene system were synthesized. The closed ring-forms 1C and 2C showed absorption maximum at 445 nm, while the closed ring-form 3C, a methyl group of 2C on C-5 of thienyl ring was replaced with a formyl group, showed the absorption maximum at 500 nm.
