Photoreactive dendrimers comprising a core portion, branching units and terminal groups, wherein at least one terminal group and/or branching unit is a photoreactive group and wherein the photo reactive groups include preferably cinnamates, coumarins, benzylidenephthalimidines, benzylideneacetophenones, diphenylacetylenes stilbazoles, uracyl, quinolinone, maleinimides, or cinnamylidene acetic acid derivatives and are able to undergo photocyclization, in particular [2+2]-photocyclization.
光敏树状分子包括核心部分、分支单元和末端基团,其中至少一个末端基团和/或分支单元是光敏基团,而光敏基团包括
肉桂酸酯、
香豆素、苯基亚醇酰
萘亚胺、苯基亚醛乙酮、二
苯乙炔、斯蒂尔巴唑、尿
嘧啶、
喹啉酮、马来
酰亚胺或肉桂酰
乙酸衍
生物,能够发生光环化反应,特别是[2+2]-光环化反应。