P. Coelho, Luís M. Carvalho, Jose A. C. Silva
Jan 31, 2001
Citations
0
Influential Citations
13
Citations
Journal
Helvetica Chimica Acta
Abstract
The synthesis of four novel pyrano-xanthenones derived from hydroxy-9H-xanthen-9-ones is described, and their photochromic properties in solution are reported. All compounds synthesized exhibit a good colorability, making them good potential dyes. The presence of the chromone system fused in the 7,8-position seems to lead to more stabilized colored forms.