65658-16-4Relevant articles and documents
Facile Access to Triazole-Fused 3,1-Benzoxazines Enabled by Metal-Free Base-Promoted Intramolecular C-O Coupling
Beletskaya, Irina P.,Kotovshchikov, Yury N.,Latyshev, Gennadij V.,Lukashev, Nikolay V.,Tatevosyan, Stepan S.
supporting information, (2021/10/21)
A convenient approach to assemble 1,2,3-triazole-fused 4 H -3,1-benzoxazines has been developed. Diverse alcohol-tethered 5-iodotriazoles, readily accessible by a modified protocol of Cu-catalyzed (3+2)-cycloaddition, were utilized as precursors of the target fused heterocycles. The intramolecular C-O coupling proceeded efficiently under base-mediated transition-metal-free conditions, furnishing cyclization products in yields up to 96%. Suppression of the competing reductive cleavage of the C-I bond was achieved by the use of Na 2CO 3in acetonitrile at 100 °C. This practical and cost-effective procedure features a broad substrate scope and valuable functional group tolerance.
Red phosphorescent compound and organic electroluminescent device using same
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Paragraph 0064-0066, (2020/01/03)
The invention discloses a red phosphorescent compound and an organic electroluminescent device using the same. In the organic electroluminescent device comprising an anode, a hole injection layer, a hole transport layer, a light emitting layer, an electron transport layer, an electron injection layer and a cathode which are sequentially deposited, a phosphorescent compound as shown in a followingformula I can be used as a dopant of the light emitting layer, wherein R1, R2, R3, R4, R5 and R6 are independently selected from one of H, C1-C6 alkyls and C5-C8 cycloalkyls. The red phosphorescent material is high in efficiency, high in color purity and narrow in spectral effect.
COMPOUNDS AND METHODS FOR REGULATING INSULIN SECRETION
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Page/Page column 105, (2018/10/19)
Disclosed herein are methods for inducing insulin secretion in a glucose-dependent manner and compounds for use in these methods.