90-30-2Relevant academic research and scientific papers
New NIR dyes based on quinolizino[1,9-hi]phenoxazin-6-iminium chlorides: synthesis, photophysics and antifungal activity
Raju, B. Rama,Leit?o, Maria Inês P.S.,Sousa, Maria Jo?o,Coutinho, Paulo J.G.,Gon?alves, M. Sameiro T.
, (2020)
A series of new quinolizino[1,9-hi]phenoxazinium dyes built on julolidine and naphthalen-1-amine derivatives or anthracen-1-amine were prepared. The N-terminal of these quinolizino[1,9-hi]phenoxazinium chlorides contains aromatic or aliphatic substituents, along with the functionalities such as chloro, hydroxyl and carboxyl. The photophysical behaviour of these compounds was studied in anhydrous ethanol and aqueous medium under acidic and basic conditions. These fluorophores display absorption and emission maxima up to 675 and 712 nm, respectively, can serve as alternative sensing tools in biological assays. All the quinolizino[1,9-hi]phenoxazinium chlorides were evaluated against the yeast Saccharomyces cerevisiae in a broth microdilution assay. It was found that their antifungal activity depended on the substituent at 14-amino position in benzo[a]quinolizino[1,9-hi]phenoxazin-14(5H)-iminium chlorides, and also on the addition of a fused benzene ring, which occurs in naphtho[2,3-a]quinolizino[1,9-hi]phenoxazin-14(5H)-iminium chloride. The highest activity, with a MIC of 0.78 μM, was obtained for benzo[a]quinolizino[1,9-hi]phenoxazin-14(5H)-iminium chloride with a 3-chloropropyl substituent at the 14-amino position of the heterocycle core.
Fabrication of TiO2 Nanoparticles by electrostatic jet using the low dielectric constant solvent
Tang, Yufei,Zhang, Heng,Zhao, Kang,Xie, Gaowei,Teng, Letian,Liu, Zhaowei
, p. 9943 - 9950 (2016)
Tert-butyl alcohol (TBA) was used as a low dielectric constant solvent for the fabrication of TiO2 nanoparticles by electrostatic jet. The phase, morphology and diameter distribution properties of the resulting TiO2 nanoparticles were characterized by XRD and SEM, respectively. As the PVAc content of the precursor solutions increased, the diameter of the electrostatic jet PVAc/butyl titanate composite nanoparticles increased. The resulting composite nanoparticles possessed a smooth surface and displayed perfect spherical structures when the PVAc content was 3 wt%, where as a PVAc content of 9 wt% or more led to a co-continuous structure of nanoparticles and fibers, other were erythrocyte-liked in shape and contained large pits on their surface. Anatase TiO2 nanoparticles were formed from the butyl titanate/PVAc nanoparticles following their calcination at 550 °C. The diameter distribution of the TiO2 nanoparticles was wide, with the values falling in the range of 623-8±122-8 to 1328-3±247-6 nm. When its diameter is 238 nm and adding content is 2 g/L, the 40 min degradation rate of methylene blue catalyzed by titanium oxide nanoparticles is 92.39%.
Nickel-Catalyzed Amination of Aryl Nitriles for Accessing Diarylamines through C?CN Bond Activation
Wu, Ke,Rong, Qiang,Sun, Nan,Hu, Baoxiang,Shen, Zhenlu,Jin, Liqun,Hu, Xinquan
, p. 4708 - 4713 (2021/08/27)
A nickel-catalyzed amination to access diarylamines has been developed through C?CN bond activation of aryl nitriles with anilines. In this developed catalytic protocol, various aromatic and heteroaromatic nitriles could be utilized as the electrophiles to couple with substituted anilines. A diversity of diarylamines were obtained in 15–95% yields. (Figure presented.).
Hole Transfer Compound and Organic Light-Emitting Diodes Using The same
-
Paragraph 0113-0116, (2021/06/22)
The present invention relates to a hole transport compound represented by a chemical formula 1, and an organic light emitting device including the same. The hole transport compound according to the present invention is based on high hole transport properties and reduces ionization potential to improve hole transport ability, has high compatibility with other layers of general OLED devices and has high hole mobility and long lifespan.
Nitrogen-containing compound, organic electroluminescent device, and electronic device
-
Paragraph 0111-0115; 0118, (2021/01/24)
The invention provides a nitrogen-containing compound, an organic electroluminescent device and an electronic device, and belongs to the technical field of organic materials. The structure of the nitrogen-containing compound is represented by Chemical Formula 1: wherein X1, X2, Y1, Y2 are the same or different from each other and are each independently a single bond, O, S, N(R3), C(R4R5), Ge(R6R7), Si(R8R9), Se, wherein X1 and Y1 are not single bonds simultaneously and X2 and Y2 are not single bonds simultaneously.
Organic compound, and electronic element and electronic device using same
-
Paragraph 0150-0152; 0155, (2021/07/14)
The invention relates to an organic compound. The structure of the organic compound is shown as a formula I. When the organic compound is used as a hole adjustment layer material of an electronic element, driving voltage can be reduced, the luminous efficiency of a device can be improved, and the service life of the device can be prolonged.
Organic compound and electronic device and device containing the same
-
Paragraph 0216-0219; 0220-0222; 0227, (2021/09/11)
The invention relates to the technical field of organic electroluminescent materials, in particular to an organic electroluminescent material 9 with 10 -9 dihydro 9 -10 -dimethyl and oxanthrene and arylamine groups, an electronic device containing the compound and a device. The organic electroluminescent device has lower driving voltage. Higher luminous efficiency and longer service life.
COMPOUND FOR ORGANIC ELECTRONIC ELEMENT, ORGANIC ELECTRONIC ELEMENT USING THE SAME, AND A ELECTRONIC DEVICE THEREOF
-
Paragraph 0103; 0106-0109, (2021/06/22)
In the present invention, provided is a novel compound capable of improving luminance efficiency, stability, and service life of an element, an organic electronic element using the same, and an electronic device thereof. By using the compound of the present invention, high luminance efficiency, low driving voltages, and high heat resistance of the element can be achieved, and color purity and service life of the element can be greatly improved.
Organic electroluminescent compound and preparation method thereof, and organic electroluminescent device
-
Paragraph 0057-0061, (2020/04/22)
The invention discloses an organic electroluminescent compound and a preparation method thereof, and an organic electroluminescent device, and belongs to the field of chemical synthesis and photoelectric materials, wherein the structural general formula of the organic electroluminescent compound is defined in the specification, and in a formula I, L is one selected from a chemical bond, substituted or unsubstituted C6-C30 aryl and substituted or unsubstituted C3-C30 heteroaryl, X is a heteroatom, and Ar1 and Ar2 are respectively and independently selected from substituted or unsubstituted C1-C30 alkyl, substituted or unsubstituted C6-C30 aryl, substituted or unsubstituted C3-C30 heteroaryl, substituted or unsubstituted C3-C30 arylamino, substituted or unsubstituted C3-C30 aliphatic amino and single ring or multi-ring formed by linking adjacent substituent groups. According to the invention, with the application of the organic electroluminescent compound as the material of the light-emitting auxiliary layer and/or hole transport layer of an organic electroluminescent device, the driving voltage of the organic electroluminescent device can be remarkably reduced, the light-emitting efficiency of the organic electroluminescent device is improved, and the service life of the organic electroluminescent device is prolonged.
A Novel Modified Cross-Coupling of Phenols and Amines Using Dichloroimidazolidinedione (DCID)
Madankar, Kamelia,Mokhtari, Javad,Mirjafary, Zohreh
supporting information, p. 1725 - 1729 (2020/09/01)
Phenols are considered as an ideal alternative to aryl halides as coupling partners in cross-coupling reactions. In the present work a copper-catalyzed cross-coupling of phenols with various aromatic and aliphatic amines for the synthesis of secondary aryl amines using dichloroimidazolidinedione (DCID) as a new and efficient activating agent has been developed. Substituted phenols were compatible with the standard reaction conditions. The two proposed mechanisms, which are based on the oxidation addition of copper with Ar-OMCID (MCID: Monochloroimidazolidinedione), are also discussed.
