1280225-66-2Relevant academic research and scientific papers
One-pot synthesis of 2-bromo-4,5-diazafluoren-9-one via a tandem oxidation-bromination-rearrangement of phenanthroline and its hammer-shaped donor-acceptor organic semiconductors
Zhao, Jian-Feng,Chen, Lin,Sun, Peng-Ju,Hou, Xiao-Ya,Zhao, Xiang-Hua,Li, Wei-Jie,Xie, Ling-Hai,Qian, Yan,Shi, Nai-En,Lai, Wen-Yong,Fan, Qu-Li,Huang, Wei
experimental part, p. 1977 - 1982 (2011/04/22)
An unexpected one-pot tandem procedure of 2-bromo-4,5-diazafluoren-9-one starting from phenanthroline with a yield of up to 50% has been described. The conversion mechanism involves three consecutive oxidation, bromination, and rearrangement reactions. A series of its hammer-shaped donor-acceptor organic semiconductors with solvent-dependent fluorescence have also been constructed via Ullman and/or Friedel-Crafts reaction. Diazafluorenes (DAFs) and derivatives are regarded as promising building blocks or candidates for donor-acceptor organic semiconductors.
