287111-93-7Relevant articles and documents
Oxidation of BINOLs by Hypervalent Iodine Reagents: Facile Synthesis of Xanthenes and Lactones
Wirth, Thomas,Zhang, Huaiyuan
, (2022/03/17)
Xanthene derivatives have broad applications in medicines, fluorescent probes, dyes, food additives, etc. Therefore, much attention was focused on developing the synthetic methods to prepare these compounds. Binaphthyl-based xanthene derivatives were prepared through the oxidation of BINOLs promoted by the hypervalent iodine reagent iodosylbenzene (PhIO). Nine-membered lactones were obtained through a similar oxidative reaction when iodoxybenzene (PhIO2) was used. Additionally, one-pot reactions of BINOLs, PhIO and nucleophiles such as alcohols and amines were also investigated to provide alkoxylated products and amides in good to excellent yields.
Aggregation-induced CPL response from chiral binaphthyl-based AIE-active polymers via supramolecular self-assembled helical nanowires
Ma, Jing,Wang, Yuxiang,Li, Xiaojing,Yang, Lan,Quan, Yiwu,Cheng, Yixiang
, p. 184 - 189 (2018/04/14)
In this paper chiral polymer R-P could be synthesized by click polymerization reaction of (R)-3,3′-diethynyl-2,2′-bis(octyloxy)-1,1′-binaphthalene (R-M-1) and 1,2-bis(4-azidophenyl)-1,2-diphenylethene (M-2), and S-P was obtained by click polymerization re
The amplified circularly polarized luminescence emission response of chiral 1,1′-binaphthol-based polymers via Zn(II)-coordination fluorescence enhancement
Meng, Fandian,Li, Fei,Yang, Lan,Wang, Yuxiang,Quan, Yiwu,Cheng, Yixiang
, p. 1282 - 1288 (2018/04/14)
Two kinds of chiral 1,1′-binaphthol (BINOL)-based polymer enantiomers were designed and synthesized by the polymerization of 5,5′-((2,2′-bis (octyloxy)-[1,1′-binaphthalene]-3,3′-diyl)bis(ethyne-2,1-diyl))bis(2-hydroxybenzaldehyde) (M1) with alkyl diamine (M2) via nucleophilic addition–elimination reaction. The resulting chiral polymers can exhibit mirror image cotton effects either in the absence or in the presence of Zn2+ ion. Almost no fluorescence or circularly polarized luminescence (CPL) emission could be observed for two chiral BINOL-based polymer enantiomers in the absence of Zn2+. Interestingly, the chiral polymers can show strong fluorescence and CPL response signals upon the addition of Zn2+, which can be attributed to Zn2+-coordination fluorescence enhancement effect. This work can develop a new strategy on the design of the novel CPL materials via metal-coordination reaction.
Doping-free circularly polarized electroluminescence of AIE-active chiral binaphthyl-based polymers
Yang, Lan,Zhang, Yu,Zhang, Xueyan,Li, Nengquan,Quan, Yiwu,Cheng, Yixiang
supporting information, p. 9663 - 9666 (2018/09/10)
AIE-active chiral polymer enantiomers (S-/R-P) can emit green circularly polarized electroluminescence (CP-EL) with gEL up to 0.024 without alignment layers and chiral dopants, which represents the first example of CP-OLEDs based on AIE-active
Aerobic oxidative coupling of 2-naphthol derivatives catalyzed by a hexanuclear bis(μ-hydroxo)copper(II) catalyst
Meesala, Yedukondalu,Wu, Hsyueh-Liang,Koteswararao, Bommisetti,Kuo, Ting-Shen,Lee, Way-Zen
, p. 4385 - 4393 (2015/04/16)
A novel hexanuclear bis(μ-hydroxo)copper(II) complex, [L3(Cu2(μ-OH)2)3](ClO4)6 (1), was synthesized with dinucleating ligand N,N,N,N-tetra(pyridin-2-ylmethyl)-m-xylene diamine (L). Complex 1 is fully characterized by X-ray crystallography and magnetic susceptibility in the solid state and UV-vis and electron paramagnetic resonance spectroscopy in solution. The molecular structure of 1 possesses three dicopper cores, in which two copper centers are bridged by two hydroxide groups and separated by a distance ranging from 2.8852(15) to 2.8937(10) ?. In addition, the three dicopper cores are linked by the dinucleating ligand between each pair of adjacent dicopper cores. Importantly, aerobic oxidative coupling of 2,4-di-tert-butylphenol, 2-naphthol, and six 2-naphthol derivatives was achieved in 33-96% yield using complex 1 as a catalyst.
Enantioenriched synthesis of C 1-symmetric BINOLs: Iron-catalyzed cross-coupling of 2-naphthols and some mechanistic insight
Egami, Hiromichi,Matsumoto, Kenji,Oguma, Takuya,Kunisu, Takashi,Katsuki, Tsutomu
supporting information; experimental part, p. 13633 - 13635 (2010/11/17)
Highly enantioselective aerobic oxidative cross-coupling of 2-naphthols with broad substrate scope was achieved using an iron(salan) complex as the catalyst. Enantiomeric excesses of the products ranged from 87 to 95%. The scope of the cross-coupling reac
Chiral metallacyclophanes: Self-assembly, characterization, and application in asymmetric catalysis
Hua, Jiang,Lin, Wenbin
, p. 861 - 864 (2007/10/03)
(Equation presented) A family of chiral metallacyclophanes has been readily assembled based on robust Pt-acetylide linkage and characterized by a variety of spectroscopic techniques and X-ray crystallography. The steric congestion around the chiral dihydr
