benzannulation reaction of internal or terminal alkynes with 2-biaryl, 2-heteroarylphenyl, or 2-alkenylphenyl Grignard reagents in the presence of Fe(acac)(3), 4,4'-di-tert-butyl-2,2'-bipyridyl, and 1,2-dichloro-2-methylpropane takes place at room temperature in 1 h to give 9-substituted or 9,10-disubstituted phenanthrenes and congeners in moderate to excellent yields. The reaction tolerates sensitive
report an efficient one‐step annulative π‐extension reaction of alkynes that provides access to diarylphenanthrenes and related nanographene precursors. In the presence of a cationic palladium/o‐chloranil catalyst system and dibenzosiloles or dibenzogermoles as π‐extending agents, a variety of diarylacetylenes are transformed successfully into 9,10‐diarylphenanthrenes in a single step with good functional‐group
[EN] COMPOUND AND ORGANIC SEMICONDUCTING LAYER, ORGANIC ELECTRONIC DEVICE, DISPLAY DEVICE AND LIGHTING DEVICE COMPRISING THE SAME<br/>[FR] COMPOSÉ ET COUCHE SEMI-CONDUCTRICE ORGANIQUE, DISPOSITIF ÉLECTRONIQUE ORGANIQUE, DISPOSITIF D'AFFICHAGE ET DISPOSITIF D'ÉCLAIRAGE COMPRENANT CELUI-CI
申请人:NOVALED GMBH
公开号:WO2020016233A1
公开(公告)日:2020-01-23
The present invention relates to an organic compound of formula (1), suitable for use as a layer material for electronic devices, and it relates to an organic semiconductor layer comprising at least one compound thereof, as well as to an organic electronic device comprising at least one organic semiconductor layer, and a method of manufacturing the same.
Sequential Oxidative Transformation of Tetraarylethylenes to 9,10-Diarylphenanthrenes and Dibenzo[<i>g</i>,<i>p</i>]chrysenes using DDQ as an Oxidant
作者:Tushar S. Navale、Khushabu Thakur、Rajendra Rathore
DOI:10.1021/ol200069c
日期:2011.4.1
Tetraarylethylenes can be sequentially transformed into 9,10-diarylphenanthrenes and dibenzo[g,p]chrysenes using 1 and 2 equiv of DDQ, respectively, in CH(2)Cl(2) containing methanesulfonic acid, in excellent yields. Efficient access to substituted dibenzochrysenes from tetraarylethylenes establishes the versatility of this procedure over the existing multistep syntheses of dibenzochrysenes. Moreover, the ready regeneration of DIM from easily recovered reduced DDQ-H(2) continues to advance the use of DDQ/H(+) for the oxidative C-C bond forming reactions.
COMPOUND AND ORGANIC SEMICONDUCTING LAYER, ORGANIC ELECTRONIC DEVICE, DISPLAY DEVICE AND LIGHTING DEVICE COMPRISING THE SAME