Ln. Lucas et al., A NEW CLASS OF PHOTOCHROMIC 1,2-DIARYLETHENES - SYNTHESIS AND SWITCHING PROPERTIES OF BIS(3-THIENYL)CYCLOPENTENES, Chemical communications, (21), 1998, pp. 2313-2314
A novel synthetic route to diarylethenes fixed in a cyclopentene based
on titanium-mediated carbonyl coupling leads to bis(3-thienyl)cyclope
ntenes that show photochromic behaviour similar to that of known diary
lethenes.