54101-62-1Relevant academic research and scientific papers
An umpolung strategy for rapid access to thermally activated delayed fluorescence (TADF) materials based on phenazine
Cheng, Hu,Guo, Qiang,Lan, Jingbo,Ran, Chunhao,Wu, Di,Zhang, Huaxing
supporting information, p. 1581 - 1584 (2022/02/10)
Herein, Ag(I)-promoted regioselective intramolecular radical nucleophilic addition/rearrangement of 2-aryl diazaboroles has been accomplished for the first time to construct phenazine structures. This protocol is an umpolung strategy based on the classical electrophilic mechanism, and therefore, a reversed regioselectivity was observed, which provides an opportunity to prepare sterically hindered phenazines. The resulting thermally activated delayed fluorescence (TADF) materials based on phenazine exhibit emission bands from green to red with high quantum yields and moderate fluorescence lifetimes as solid films.
Preparation and Reactions of 2-Alkynyl-3-chloroquinoxalines.
Ames, Donald E.,Mitchell, John C.,Takundwa, Chisango C.
, p. 1683 - 1696 (2007/10/02)
2-Alkynyl-3-chloroquinoxalines are prepared from 2,3-dichloroqionoxaline and alk-1-ynes: use of 2-methylbut-3-yn-2-ol, and the removal of acetone with base, yields 2-chloro-3-ethynylqionoxaline.The chloroalkynes are readily converted into pyrrolo- and thi
