81316-78-1Relevant articles and documents
Ambient measurement of nitrotriphenylenes and possibility of nitrotriphenylene formation by atmospheric reaction
Ishii, Satoko,Hisamatsu, Yoshiharu,Inazu, Koji,Kadoi, Morio,Aika, Ken-Ichi
, p. 1893 - 1899 (2000)
Environmental nitration of PAHs by nitrogen oxides on airborne particulates and identification and quantification of nitro-PAHs in them have been studied on fluoranthene and pyrene because of their large abundance. However, the direct mutagenic activity of these nitro-PAHs can account for only up to about 20% of the total direct mutagenic activity of airborne particulate samples, and the presence of unknown mutagenic nitro-PAHs was suggested. 1- and 2-Nitrotriphenylenes were first identified and quantified in ambient particulate samples collected in Tokyo. Their mutagenicity and formation by laboratory reactions of triphenylene deposited on a filter with NO2/NO3/N2O5 were also investigated. The concentrations of 1- and 2- nitrotriphenylenes were much higher than that of 1-nitropyrene in the same samples. 2-Nitrotriphenylene showed over 2 orders of magnitude greater mutagenic activity than 1-nitrotriphenylene in both strains TA98 and YG1024 (18 and 480 revertants/nmol for 1-nitrotriphenylene and 3800 and 101 700 revertants/nmol for 2-nitrotriphenylene in TA98 and YG1024). The mutagenic 2- nitrotriphenylene was expected to contribute largely to the total mutagenic activity of the extracts from airborne particulates. In addition, more effective formation of nitrotriphenylenes by the nighttime reaction of triphenylene in the presence of O3 in the dark can explain the observation of high nitrotriphenylene concentration in the nighttime samples. Environmental nitration of PAHs by nitrogen oxides on airborne particulates and identification and quantification of nitro-PAHs in them have been studied on fluoranthene and pyrene because of their large abundance. However, the direct mutagenic activity of these nitro-PAHs can account for only up to about 20% of the total direct mutagenic activity of airborne particulate samples, and the presence of unknown mutagenic nitro-PAHs was suggested. 1-and 2-Nitrotriphenylenes were first identified and quantified in ambient particulate samples collected in Tokyo. Their mutagenicity and formation by laboratory reactions of triphenylene deposited on a filter with NO2/NO3/N2O5 were also investigated. The concentrations of 1- and 2-nitrotriphenylenes were much higher than that of 1-nitropyrene in the same samples. 2-Nitrotriphenylene showed over 2 orders of magnitude greater mutagenic activity than 1-nitrotriphenylene in both strains TA98 and YG1024 (18 and 480 revertants/nmol for 1-nitrotriphenylene and 3800 and 101700 revertants/nmol for 2-nitrotriphenylene in TA98 and YG1024). The mutagenic 2-nitrotriphenylene was expected to contribute largely to the total mutagenic activity of the extracts from airborne particulates. In addition, more effective formation of nitrotriphenylenes by the nighttime reaction of triphenylene in the presence of O3 in the dark can explain the observation of high nitrotriphenylene concentration in the nighttime samples.
Synthesis of triphenylene derivatives by Pd-catalyzed Suzuki coupling/intramolecular C–H activation between arylboronic acids and dibromobiphenyls
Tu, Jingxuan,Li, Gaoqiang,Zhao, Xiaoqian,Xu, Feng
, p. 44 - 47 (2018/11/30)
An efficient and regioselective synthesis of functionalized triphenylenes via palladium-catalyzed Suzuki-Miyaura coupling and subsequent intramolecular C–H activation between arylboronic acids and dibromobiphenyls was developed. This methodology showed excellent atomic economy and regiospecificity as well as synthetic feasibility of unsymmetrical triphenylenes.
Derivative of triaromatic amines and organic electroluminescence device thereof
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Paragraph 0079; 0080; 0083, (2018/11/22)
The invention discloses a derivative of triaromatic amines and organic electroluminescent device thereof, which relates to the technical field of organic photoelectric material, the derivative of triaromatic amines provided by the invention has bipolar structure, which has good carrier transport characteristics so that electrons and holes can be effectively combined in the luminescent layer, the luminescent efficiency is high. In addition, the derivative of triaromatic amines provided by the invention has relatively high vitrification temperature and thermal stability, which is helpful for material film formation. The electroluminescence device provided by the invention includes a cathode, an anode and one or more organics layers, at least one organic layer contains derivatives of triaromatic amines provided by the invention, the organic electroluminescence device provided by the invention has relatively low driving voltage, relatively high luminous efficiency and luminosity and relatively long service life.