244615-50-7Relevant articles and documents
Nitrogen-containing compound, electronic component using same and electronic device
-
Paragraph 0151-0157, (2022/01/04)
The invention belongs to the technical field of organic materials, and provides a nitrogen-containing compound, an electronic component using the same and an electronic device. The structure of the nitrogen-containing compound is shown as a formula I; in the formula I, Ar1 and Ar2 are independently selected from substituted or unsubstituted aryl with the carbon atom number of 6-25, L1 and L2 are independently selected from a single bond, substituted or unsubstituted arylene with the carbon atom number of 6-25 and the like; and the nitrogen-containing compound can effectively improve the performance of the electronic component.
Ceramic boron carbonitrides for unlocking organic halides with visible light
Yuan, Tao,Zheng, Meifang,Antonietti, Markus,Wang, Xinchen
, p. 6323 - 6332 (2021/05/19)
Photochemistry provides a sustainable pathway for organic transformations by inducing radical intermediates from substrates through electron transfer process. However, progress is limited by heterogeneous photocatalysts that are required to be efficient, stable, and inexpensive for long-term operation with easy recyclability and product separation. Here, we report that boron carbonitride (BCN) ceramics are such a system and can reduce organic halides, including (het)aryl and alkyl halides, with visible light irradiation. Cross-coupling of halides to afford new C-H, C-C, and C-S bonds can proceed at ambient reaction conditions. Hydrogen, (het)aryl, and sulfonyl groups were introduced into the arenes and heteroarenes at the designed positions by means of mesolytic C-X (carbon-halogen) bond cleavage in the absence of any metal-based catalysts or ligands. BCN can be used not only for half reactions, like reduction reactions with a sacrificial agent, but also redox reactions through oxidative and reductive interfacial electron transfer. The BCN photocatalyst shows tolerance to different substituents and conserved activity after five recycles. The apparent metal-free system opens new opportunities for a wide range of organic catalysts using light energy and sustainable materials, which are metal-free, inexpensive and stable. This journal is
Identification of C5-NH2 Modified Oseltamivir Derivatives as Novel Influenza Neuraminidase Inhibitors with Highly Improved Antiviral Activities and Favorable Druggability
Bertagnin, Chiara,Du, Ruikun,Guizzo, Laura,Hou, Lingxin,Huang, Bing,Jia, Ruifang,Ju, Han,Kang, Dongwei,Kong, Xiujie,Li, Ping,Liu, Xinyong,Loregian, Arianna,Ma, Xiuli,Murugan, N. Arul,Poongavanam, Vasanthanathan,Zhan, Peng,Zhang, Ying
, p. 17992 - 18009 (2021/11/18)
Our previous efforts have proved that modifications targeting the 150-cavity of influenza neuraminidase can achieve more potent and more selective inhibitors. In this work, four subseries of C5-NH2 modified oseltamivir derivatives were designed
Designing a bifunctional metal-organic framework by tandem post-synthetic modifications; an efficient and recyclable catalyst for Suzuki-Miyaura cross-coupling reaction
Hamadi, Hosein,Nobakht, Valiollah,Salahshournia, Behrang
, (2020/09/02)
A new Cu/Pd bimetallic Cu-MOF-[Pd] was synthesized through covalent, dative and inorganic post-synthetic modifications. In order to achieve the Cu-MOF-[Pd], Zn-MOF (TMU-17-NH2) was initially selected and fabricated by grafting of salicylaldehyde via Schiff-base formation followed by complex formation with Pd(II). Then, the as-synthesis MOF, Zn-MOF-[Pd], was subjected as 3D-template to obtain Cu-MOF-[Pd] by transmetalation process. The Cu-MOF-[Pd] was characterized by FT-IR spectroscopy, atomic absorption spectroscopy (AAS), field emission scanning electron microscopy (FE-SEM), powder X-ray diffraction (PXRD), energy dispersive X-ray spectroscopy (EDS), and EDS mapping techniques. The feasibility of using Cu-MOF-[Pd] as a highly active recoverable catalyst was confirmed in the Suzuki–Miyaura cross-coupling reaction in a mixed water/ethanol solvent. The results show that this novel nano-composite could serve as an efficient bimetallic heterogeneous catalyst and reuse at least for 5 times without loss in activity.
Novel π-conjugated molecules based on diimidazopyridine: Significantly improved the photophysical, thermal and electrochemical properties bearing different aryl substituents
Huang, Xin,Tian, Jinchang,Xu, Feng,Liu, Xiaochong,Li, Yuqin,Guo, Yanyan,Chu, Wenyi,Sun, Zhizhong
supporting information, p. 681 - 686 (2018/01/16)
A series of π-conjugated molecules based on diimidazolepyridine derivatives were designed, synthesized by Suzuki coupling reaction and cyclization reaction and characterized. Diimidazolepyridine motif as the main structure could improve the thermal stabil
Mono- and dinuclear cyclopalladates as catalysts for Suzuki–Miyaura cross-coupling reactions in predominantly aqueous media
Babu, G. Narendra,Pal, Samudranil
, p. 1000 - 1005 (2017/02/18)
Suzuki–Miyaura cross-coupling reactions of aryl halides with arylboronic acids were performed in predominantly aqueous media employing two mono- and two dinuclear cyclopalladated complexes as catalysts. These complexes are [Pd(HL)Cl] (I), [Pd(L)(PPh3)] (II), [Pd2(μ-dppb)(L)2] (III) and [Pd2(μ-dppf)(L)2] (IV); where H2L, dppb and dppf represent 4-methoxy-N′-(mesitylidene)benzohydrazide, 1,4-bis(diphenylphosphino)butane and 1,1′-bis(diphenylphosphino)ferrocene, respectively. The reactions were conducted using potassium carbonate as base in presence of tetrabutylammonium bromide (TBAB) at 70/90 °C in dimethylformamide–water (1:20) mixture. Among the four catalysts used, the dinuclear complex IV turned out to be the most effective and afforded moderate to excellent yields with broad substrate scope.
Fluorogenic aldehydes bearing arylethynyl groups: Turn-on aldol reaction sensors for evaluation of organocatalysis in DMSO
Mase, Nobuyuki,Ando, Taishi,Shibagaki, Fumiya,Sugita, Atsushi,Narumi, Tetsuo,Toda, Mitsuo,Watanabe, Naoharu,Tanaka, Fujie
supporting information, p. 1946 - 1948 (2014/03/21)
Fluorogenic aromatic aldehydes bearing arylethynyl groups were developed. They were used for monitoring the reaction progress of organocatalytic aldol reactions in DMSO through an increase in the fluorescence intensity based on the formation of the florescent aldol product. The ratios of the fluorescence intensities of the aldols to the aldehydes were more than 300. These results suggest that the fluorescence assay system using the aldehyde is useful for the rapid identification of superior aldol catalysts and reaction conditions.
A self-assembled Pd6L8 nanoball for Suzuki-Miyaura coupling reactions in both homogeneous and heterogeneous formats
Zhao, Chao-Wei,Ma, Jian-Ping,Liu, Qi-Kui,Yu, Yang,Wang, Peng,Li, Yan-An,Wang, Kui,Dong, Yu-Bin
supporting information, p. 3150 - 3154 (2013/11/06)
A self-assembled nano-sized Pd6L8 (L = 1,3,5-tris(4′-pyridyloxadiazole)-2,4,6-triethylbenzene) ball was constructed based on a new oxadiazole-containing tripod. In H2O-EtOH mixed-solvent system, Pd(ii)-ball displays excellent performance in Suzuki-Miyaura cross-coupling reactions at low catalyst loading under ambient conditions in a homogeneous fashion. Furthermore, it shows heterogeneous catalyst nature in o-xylene and can be reused without loss of catalytic activity.
An easily prepared, air and moisture stable, resin-bound palladium catalyst for Suzuki cross-coupling reactions
Zhang, Tony Y.,Allen, Matthew J.
, p. 5813 - 5816 (2007/10/03)
An air and moisture stable polymer supported palladium catalyst easily prepared from a commercial available thiourea resin Deloxan THP was found to enable Suzuki cross-coupling reactions to be carried out in high yields and convenient manner.
