Facile Synthesis, Fluorescence, and Photochromism of Novel Helical Pyrones and Chromenes
作者:Jarugu Narasimha Moorthy、Parthasarathy Venkatakrishnan、Sanchita Sengupta、Mahiuddin Baidya
DOI:10.1021/ol0619260
日期:2006.10.1
[GRAPHICS]Aryl coumaryl ethylenes undergo oxidative photocyclization readily to yield helical pyrone-annulated condensed aromatics. The pyrones are conveniently converted to the corresponding photochromic diphenylpyrans/chromenes. Both pyrones and chromenes exhibit helicity-dependent fluorescence efficiency and persistence, respectively.