133850-82-5Relevant articles and documents
Towards highly efficient blue-phosphorescent organic light-emitting diodes with low operating voltage and excellent efficiency stability
Han, Chunmiao,Xie, Guohua,Xu, Hui,Zhang, Zhensong,Yu, Donghui,Zhao, Yi,Yan, Pengfei,Deng, Zhaopeng,Li, Qiang,Liu, Shiyong
, p. 445 - 449 (2011)
Let there be light! An effective strategy for the design of highly efficient phosphine oxide light-emitting-diode hosts with an ortho-linked structure has been demonstrated by synthesizing 4-diphenylphosphoryl dibenzofuran. The ortho linkage of the phosph
Bidentate Phosphines of Heteroarenes: 4,6-Bis(diphenylphosphino)dibenzofuran and 4,6-Bis(diphenylphosphino)dibenzothiophene
Haenel, Matthias W.,Jakubik, Dieter,Rothenberger, Eveline,Schroth, Gerhard
, p. 1705 - 1710 (2007/10/02)
Twofold lithiathion of dibenzofuran (6) and dibenzothiophene (12) with n-butyllithium/ N,N,N',N'-tetramethylethylenediamine (TMEDA) in n-hexane or n-heptane followed by the reaction with chlorodiphenylphosphine yielded the title compounds 4 and 5, respectively.The monophosphines 4-(diphenylphosphino)dibenzofuran (11) and 4-(diphenylphosphino)dibenzothiophene (15) were obtained analogously via the monolithium compounds 9 and 14 of the heteroarenes.In the case of dibenzofuran (6), it was shown that mono- and dilithiation is controlled by temperature.Key Words: Phoshine ligands/ Dibenzofuran/ Dibenzothiophene/ Lithium compounds/ Multiple lithiation
