1005-03-4Relevant articles and documents
A one-pot approach to 10-(1H-1,2,3-triazol-1-yl)pyrimido[1,2-a]indoles via aryne-mediated transformations of 3-(pyrimidin-2-yl)-1,2,4-triazines
Kopchuk, Dmitry S.,Chepchugov, Nikolay V.,Khasanov, Albert F.,Kovalev, Igor S.,Santra, Sougata,Nosova, Emiliya V.,Zyryanov, Grigory V.,Majee, Adinath,Rusinov, Vladimir L.,Chupakhin, Oleg N.
, p. 3862 - 3865 (2016)
An efficient synthetic approach toward 10-(1H-1,2,3-triazol-1-yl)pyrimido[1,2-a]indoles, including fluorinated derivatives, has been developed. The transformation of the 1,2,4-triazine ring of readily available 3-(pyrimidin-2-yl)-1,2,4-triazines proceeds
Synthesis of symmetrical di(pyrimidin-2-yl)-1,2,4-triazoles and di(pyrimidin-2-yl)-1,2,4,5-tetrazines
Krivopalov,Bushuev,Gatilov,Shkurko
, p. 1808 - 1816 (2010)
The reactions of pyrimidine-2-carbonitrile and 4,6-dimethylpyrimidine-2- carbonitrile with hydrazine hydrate were investigated. Intermediates in the route of successive transformations of pyrimidine-2-carbonitrile (pyrimidine-2-carbamidrazone and 1,2-bis[amino(pyrimidin-2-yl)methylidene] hydrazine) into trinuclear heterocyclic compounds, viz., symmetrical di(pyrimidin-2-yl)-1,4-dihydro-1,2,4,5-tetrazines and di(pyrimidin-2-yl)-4H-1,2, 4-triazol-4-amines (potential polydentate ligands), were isolated. The oxidative dehydrogenation of di(pyrimidin-2-yl)-1,4-dihydro-1,2,4,5-tetrazines afforded the corresponding 3,6-di(pyrimidin-2-yl)-1,2,4,5-tetrazines.
Organic Compound, Benzoxazole Derivative, and Light-Emitting Element, Light-Emitting Device, and Electronic Device Using Benzoxazole Derivative
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Page/Page column 68, (2012/07/27)
Novel benzoxazole derivatives are provided to reduce driving voltage of light-emitting elements, and to reduce power consumption of light-emitting elements, light-emitting devices, and electronic devices. A benzoxazole derivative represented by the general formula (G1) is provided. Since the benzoxazole derivative represented by the general formula (G1) has an electron-injecting property, the benzoxazole derivative can be suitably used for light-emitting elements, light-emitting devices, and electronic devices.