29325-49-3Relevant academic research and scientific papers
A novel construction of acetamides from rhodium-catalyzed aminocarbonylation of DMC with nitro compounds
Bao, Zhi-Peng,Miao, Ren-Guan,Qi, Xinxin,Wu, Xiao-Feng
supporting information, p. 1955 - 1958 (2021/03/02)
Dimethyl carbonate (DMC), an environment-friendly compound prepared from CO2, shows diverse reactivities. In this communication, an efficient procedure using DMC as both a C1 building block and solvent in the aminocarbonylation reaction with nitro compounds has been developed. W(CO)6acts both a CO source and a reductant here.
Site-Specific Synthesis of Carbazole Derivatives through Aryl Homocoupling and Amination
Baek, Junghyun,Ban, Jaeyoung,Lim, Minkyung,Rhee, Hakjune,Shabbir, Saira
, p. 917 - 927 (2020/03/13)
We synthesized various carbazoles from anilines through a three-step process with good overall yields (up to 48percent). This process comprises N -acetylation, copper(0)-mediated Ullmann homocoupling, and acid-mediated intramolecular amination. It permits various functional groups on the substrate. Scale-up of the developed three-step synthetic route to carbazoles was also demonstrated.
A modified Cu(0)-Cu(I)-mediated Caryl-CarylUllmann coupling for the synthesis of biaryls
Yasamut, Kittisak,Jongcharoenkamol, Jira,Ruchirawat, Somsak,Ploypradith, Poonsakdi
, p. 5994 - 6000 (2016/09/14)
A novel Cu(0)-Cu(I)-mediated Caryl-CarylUllmann coupling has been successfully developed. The use of Cu(I) salts allowed the reactions to proceed under relatively mild conditions (65?°C in DMSO for 15–72?h). The developed method was compatible with a relatively wide range of functional groups simultaneously present on the aromatic ring of different electronic nature. The aryl halides with an electron-withdrawing group ortho to the halide or an electron-donating group meta or para to the halide furnished the corresponding products in good to excellent yields (up to 98%).
Computational and DNMR Analysis of the Conformational Isomers and Stereodynamics of Secondary 2,2′-Bisanilides
Mazzanti, Andrea,Chiarucci, Michel,Prati, Luca,Bentley, Keith W.,Wolf, Christian
, p. 89 - 99 (2016/01/15)
The conformational preference of 2,2′-bisanilides was investigated by variable-temperature NMR spectroscopy, NMR titration and diffusion experiments, IR spectroscopy, computational analysis, and X-ray crystallography. The formation of a conformation havin
Design and synthesis of novel ROR inverse agonists with a dibenzosilole scaffold as a hydrophobic core structure
Toyama, Hirozumi,Nakamura, Masaharu,Hashimoto, Yuichi,Fujii, Shinya
, p. 2982 - 2988 (2015/08/03)
Abstract Molecular structure calculations indicated that the dibenzosilole skeleton could be well superposed on phenanthridinone, which is a structural component of ligands of retinoic acid receptor-related orphan receptors (RORs). Therefore, we designed,
Biphenyl-based diaminophosphine oxides as air-stable preligands for the nickel-catalyzed kumada-tamao-corriu coupling of deactivated aryl chlorides, fluorides, and tosylates
Jin, Zhong,Li, Yan-Jing,Ma, Yong-Qiang,Qiu, Ling-Ling,Fang, Jian-Xin
supporting information; experimental part, p. 446 - 450 (2012/02/15)
A cooperative couple: Cooperative bimetallic activation of C-F and C-O bonds gave rise to easy coupling with aryl fluorides and tosylates. Novel air- and moisture-stable diaminophosphine oxides derived from 1,1′-biphenyl-2, 2′-diamine proved to be versatile preligands for the nickel-catalyzed cross-coupling of aryl Grignard reagents with a variety of deactivated aryl chlorides, fluorides, and tosylates (see scheme). Copyright
Copper catalyzed Gomberg-Buchmann-Hey reaction using aryldiazonium tosylate
Chaturbhuj, Ganesh U.,Akamanchi, Krishnacharya G.
experimental part, p. 4950 - 4953 (2011/10/08)
Copper catalyzed modification of Gomberg-Bachmann-Hey reaction to synthesize symmetrical/unsymmetrical biaryls via diazotization of anilines with p-TSA and NaNO2 system at 50 °C, in aromatic liquids as solvents and second partners was successfully developed. Aniline and 3-nitronaniline gave biphenyl and 3-nitrobiphenyl, respectively, with moderate yields. All para-substituted anilines gave comparatively higher yields while in the other cases including ortho-substituted anilines yields were lower. Except anilines with o-NHCOCH3 and o-CONH2 which gave symmetrical biaryls, all others gave selectively unsymmetrical biaryls.
Poly(3,6-silafluorene-co-2,7-fluorene)-based high-efficiency and color-pure blue light-emitting polymers with extremely narrow band-width and high spectral stability
Wang, Ergang,Li, Chun,Mo, Yueqi,Zhang, Yong,Ma, Gang,Shi, Wei,Peng, Junbiao,Yang, Wei,Cao, Yong
, p. 4133 - 4140 (2008/02/04)
A new series of copolymers (PSiFF) based on 3,6-silafluorene and 2,7-fluorene were synthesized via the Suzuki polycondensation. The influences of the 3,6-silafluorene content in the copolymers on the thermal, photophysical, electroluminescence and electrochemical properties were investigated. The incorporation of 3,6-silafluorene into the polyfluorene main chain not only suppressed the long-wavelength emission but significantly improved the efficiency and color purity of the copolymer-based devices. Both fluorene and 3,6-silafluorene took part in π-conjugation of the main chain and the electroluminescence spectra were remarkably blue-shifted with increasing wide bandgap 3,6-silafluorene content. The device based on PSiFF90 with the configuration of ITO/PEDOT: PSS/PVK/polymer/Ba/Al showed a quantum efficiency of 3.34% and a luminous efficiency of 2.02 cd A-1 at a brightness of 326 cd m-2 with CIE 1931 chromaticity coordinates of (0.16, 0.07), which almost match the NTSC standard blue pixel coordinates of (0.14, 0.08). Moreover, the incorporation of 3,6-silafluorene into the polyfluorene main chain significantly improved the spectral stability at annealing. The results indicate poly(3,6-silafluorene-co-2,7-fluorene) could be a promising candidate for blue-emitting polymers of high efficiency and good color purity. The Royal Society of Chemistry 2006.
