rearrangement with the formation of the dihydronaphthalene core appeared to be by 2–3 orders of magnitude more efficient than for the known diphenylmethylene(aryl(hetaryl))fulgides. The molecular structures of E- and Z-isomers and of products of the photoinduced rearrangement completed by 1,5-H shift reaction, 3a,4-dihydronaphtho[2,3-c]furans(pyrroles) C, were established based on the data of 1H and 13C NMR spectroscopy
以其开环的E-或Z-异构体的形式合成了2-苯并[ b ]
噻吩基单酸酯和含有庞大的二苯基亚甲基取代基的单
酰亚胺。与在紫外线辐射下形成有色的闭环结构的大多数已知的三卤化物/三卤
甲烷相反,所获得的化合物经历不可逆的转化,导致其溶液脱色。与形成二氢
萘核相比,这种重排效率要比已知的二苯基亚甲基(芳基(杂芳基))
全氟化合物高2-3个数量级。E-和Z-的分子结构基于1 H和13 C NMR光谱数据,建立了通过1,5-H移位反应完成的光致重排异构体和3a,4-二氢
萘并[2,3- c ]
呋喃(
吡咯)C的异构体和产物。和X射线衍射研究。