98946-22-6Relevant academic research and scientific papers
NOVEL ORGANIC ELECTROLUMINESCENT COMPOUNDS AND ORGANIC ELECTROLUMINESCENT DEVICE USING THE SAME
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, (2011/06/11)
Organic electroluminescent compounds of Chemical Formula 1 : wherein the variables A1, A2, A3, A4, R1 and R2 are as defined therein in the specification. These compounds exhibit high luminous efficiency and excellent life property of material and are used in organic electroluminescent devices. An OLED having a very good operation life and improved consumption power is manufactured using these compounds.
Facile synthesis of 1-substituted 4,5-diaminopyrazoles and its application toward the synthesis of pyrazolo[3,4-b]pyrazines
Chien, Tun-Cheng,Smaldone, Ronald A.,Townsend, Leroy B.
, p. 4105 - 4108 (2007/10/03)
1-Substituted 5-aminopyrazole-4-carbonylazides were prepared from the appropriate 5-aminopyrazole-4-carboxylates. The acyl azides undergo a Curtius rearrangement followed by quenching with alcohols to form the corresponding carbamates. The 1-substituted 5
