trimethylsilylacetylide, react with either a 1- or 2- naphthol to afford photochromic 1,1-diarylvinyl substituted naphtho[1,2-b]- or naphtho[2,1-b]-pyrans respectively. Irradiation of solutions of these naphthopyrans results in reversible electrocyclic ring-opening to afford photomerocyanines which possess an extended conjugated system and show a bathochromically-shifted λmax relative to the non-vinyl substituted
1,1,3-Triarylpent-4-en-1-yn-3-ols,通过Meyer-Schuster重排和随后的添加从1,1,3-triarylprop-2-yn-1-ols分两步有效地获得的 三甲基甲
硅烷基
乙炔锂,与1或2反应
萘酚 提供光致变色的1,1-二芳基
乙烯基取代
萘酚[1,2- b ]-或
萘并[2,1- b ]-
吡喃。在可逆电环开环,这些
萘结果的解决方案的照射,得到其具有延长的共轭体系photomerocyanines并显示出红移λ最大值相对于所述非
乙烯基取代的类似物。