- Red phosphorescent compound and organic light emitting diode device using red phosphorescent compound
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The present invention discloses a red phosphorescent compound and an organic light emitting diode device using the red phosphorescent compound. The red phosphorescent compound having the structural formula as shown in I, wherein R1, R2, R3 and R4 are independently selected from one of H and C1 to C6 alkyl groups; in the formula (I), a group shown in the specification is selected one the group consisting of a specific alkanedione and a derivative thereof. The organic light emitting diode device includes a positive pole, a hole injecting layer, a hole transporting layer, a light emitting layer,an electron transporting layer, an electron injecting layer and a negative pole which are sequentially deposited; the organic light emitting diode device comprises the red phosphorescent compound as adopant. The red phosphorescent compound enables the organic light emitting diode device to have high efficiency and high color purity and narrow spectrum.
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Paragraph 0052; 0053; 0054
(2019/01/24)
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- An unusual reaction of benzalaminoacetals in trifluoroacetic acid: Facile synthesis of 2-benzylpyrazines
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(Chemical Equation Presented) Benzalaminoacetals (1), upon refluxing with trifluoroacetic acid, lead to 2-benzylpyrazines, rather than the expected isoquinolines. This unusual reaction represents another useful way to prepare a variety of 2-benzylpyrazines from the corresponding benzaldehydes.
- Augustine, John Kallikat,Naik, Yanjerappa Arthoba,Mandal, Ashis Baran,Kundapur, Umesha
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p. 1176 - 1179
(2008/09/18)
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- SULFONAMIDE DERIVATIVES AND USE THEREOF FOR THE MODULATION OF METALLOPROTEINASES
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The present invention is related to sulfonamide derivatives of Formula (Ia) where the groups are as defined in the description, and use thereof in particular for the treatment and/or prophylaxis of autoimmune disorders, inflammatory diseases, cardiovascular diseases, neurodegenerative diseases, cancer, respiratory diseases and fibrosis, including multiple sclerosis, arthritis, emphysema, chronic obstructive pulmonary disease, liver and pulmonary fibrosis.
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Page/Page column 63
(2008/06/13)
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- HEPATITIS C VIRUS INHIBITORS
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Hepatitis C virus inhibitors are disclosed having the general formula:(I) wherein R1, R2, R3, R', B, Y and X are described in the description. Compositions comprising the compounds and methods for using the compounds toinhibit HCV are also disclosed.
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Page 271-272
(2008/06/13)
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