75449-34-2

Upstream product

• 75449-26-2 2,2'-bipyridine-3,3'-diamine 
• 1069137-31-0 2-(3-nitropyridin-2-yl)pyridine 
• 5470-18-8 2-Chloro-3-nitropyridine 
• 197958-29-5 pyridin-2-ylboronic acid 
• 108349-61-7 5H-Dipyrido[3,2-b;2',3'-d]pyrrole 1,9-dioxide 

Relevant academic research and scientific papers

Diazcarbazole derivative, preparation method thereof, and application of diazcarbazole derivative as electroluminescent material

The invention belongs to the technical field of organic photoelectric material application, and particularly relates to a diazcarbazole derivative with different relative positions of N atoms and an application of the diazcarbazole derivative as an electroluminescent material. Carbazole-like group diazcarbazole with an electron-deficient property is introduced, and a triplet state of the materialcan be realized and the molecular orbital energy level can be adjustable through bonding with different groups, so that efficient recombination of carriers in an organic electroluminescent device is achieved fundamentally, an efficient and energy-saving organic light emitting diode (OLED) device is obtained, and the diazcarbazole derivative can be widely applied to the field of organic electroluminescence. The structural general formula of the material is as shown in the formula I, wherein a same diazcarbazole (diazcarbazole with N positions of 1,8, 1,7, 1,6, 2,7, 2,6, 2,5, 3,6, 3,5, and 4,5)is taken as a core, the L group is a bridging group for bonding the diazlocarbazole, the L group is selected from aromatic groups or aromatic heterocyclic groups containing heteroatoms, m and n are the numbers of the diazicarbazole, and the sum of m and n is greater than or equal to 1.

SIMPLE AND EFFICIENT DEOXYGENATION OF HETEROAROMATIC N-OXIDES USING TiCl4/SnCl2.

Various unfunctionalized heteroaromatic N-oxides are efficiently deoxygenated to the corresponding bases under mild conditions by treatment with the novel reagent TiCl4/SnCl2.

Titanium(0) Reagents; 1. A Facile Deoxygenation of Unfunctionalized Aromatic N-Oxides

The application of titanium(0) slurry in deoxygenation of unfunctionalized aromatic N-oxides under mild conditions is reported.In general only parent heterocycles were formed in high yields.

Bipyridines. Part XVIII. On the Synthesis of -3-ol and Other Novel 2,2'-Bipyridine Derivatives from -3,3'-diamine

-3-hydroxylamine (6) and its 3'-acetylderivative (7) were obtained by diazotization of -3,3'-diamine (3) in acetic acid, however, diazotization of copper(II) complex of 3 led to -3-amine (10).The amine 10 was transformed into -3-ol (2).The pethway of the reaction was proposed.