Toward multi-addressable molecular systems: Efficient synthesis and photochromic performance of unsymmetrical bisthienylethenes
作者:Guillaume Sevez、Jean-Luc Pozzo
DOI:10.1016/j.dyepig.2010.03.018
日期:2011.6
compared to access to unsymmetrical 1,2-bisthienylperfluorocyclopentenes having one electro-withdrawing formyl group. The strategy based on key monosusbtituted cyclopentenes appears to be the most reliable and versatile synthetic approach. Applying this controlled sequential synthesis to appropriate thiophenic buildingblocks leads to the preparation of π-conjugated extended push–pull system where photochromic