tert-Butoxy groups were introduced at 2 and 2′-positions of the thiophene rings of a dithienylperfluorocyclopentene to prepare a photochromiccompound with a thermal cycloreversion reactivity and a low photocycloreversion quantumyield. The cycloreversionquantumyield was similar to the isopropyl-substituted derivative and the half-life time of the colored isomer at 100 °C was 8 s.
在二噻吩基全氟环戊烯的噻吩环的2和2'位引入叔丁氧基以制备具有热环回复反应性和低光环回复量子产率的光致变色化合物。环回复量子产率与异丙基取代衍生物相似,有色异构体在 100 °C 下的半衰期为 8 秒。