INDENOTRIPHENYLENE DERIVATIVE AND ORGANIC ELECTROLUMINESCENCE DEVICE USING THE SAME
申请人:YEN FENG-WEN
公开号:US20190194534A1
公开(公告)日:2019-06-27
The present invention discloses an indenotriphenylene phosphine oxide derivative and an organic electroluminescence device employing the derivative as the phosphorescent host material in the light emitting layer, and/or the hole blocking material and/or the electron transporting material in the organic EL device, which thereby exhibits improved performance.
Copper mediated C(sp<sup>2</sup>)–H amination and hydroxylation of phosphinamides
作者:Shang-Zheng Sun、Ming Shang、Hui Xu、Tai-Jin Cheng、Ming-Hong Li、Hui-Xiong Dai
DOI:10.1039/c9cc08879b
日期:——
Copper mediated C(sp2)-Hamination and hydroxylation of arylphosphinic acid are accomplished by adopting phosphinamide as the directing group. This method is distinguished by its wide substrate scope and excellent functional group tolerance, thus allowing for the rapid preparation of organophosphorus compounds in organic synthesis.
Copper‐Catalyzed Oxidative C(<i>sp</i><sup>3</sup>)−H/N−H Cross‐Coupling of Hydrocarbons with P(O)−NH Compounds: the Accelerating Effect Induced by Carboxylic Acid Coproduct
An chelation‐assisted oxidative C(sp3)−H/N−H cross coupling of hydrocarbons with P(O)−NH compounds using copper acetate as catalyst is described. The results of kinetic experiments, mechanistic studies and DFT calculations demonstrate the importance of acetic acid coproduct as an additive for promoting the formation of intermediate bis((diphenylphosphoryl)(quinolin‐8‐yl)amino)copper (6), and consequently
phosphinamides and aryl boronic acids with copper powder under an oxygen atmosphere is reported. This reaction proceeds efficiently to afford fully substituted unsymmetrical N-arylation phosphinamides at room temperature in excellent yields. Diverse unstable functional groups on the benzene ring of aryl boronic acids such as vinyl, formyl, acetyl, sulfonyl, acetylamino, cyano, nitro, and trifluoromethyl
enantioselective method for the synthesis of P‐chiral compounds from easily accessible diaryl phosphinamides is presented. The use of rhodium(III) complexes equipped with a suitable atropochiral cyclopentadienyl ligand is shown to enable an enantiodetermining C−Hactivation step. Upon trapping with alkynes, a broad variety of cyclic phosphinamides with a stereogenic phosphorus(V) atom are formed in high