18471-73-3Relevant articles and documents
NOVEL HYDRAZONE DERIVATIVE WITH ARYL OR HETEROARYL GROUP SUBSTITUTED AT TERMINAL AMINE GROUP THEREOF AND USE THEREOF
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Paragraph 0069; 0087, (2021/11/04)
The present invention relates to novel hydrazone derivatives in which a terminal amine group is substituted with an aryl group or a heteroaryl group, and uses thereof.
Phenoxazine-based supramolecular tetrahedron as biomimetic lectin for glucosamine recognition
Li, Yuchao,Li, Xuezhao,Li, Lili,Xiao, Bing,Wu, Jinguo,Li, Hechuan,Li, Danyang,He, Cheng
supporting information, p. 735 - 739 (2020/07/30)
The design and synthesis of a phenoxazine-based metal-organic tetrahedron (Zn4L4) as biomimetic lectin for selectively recognition of glucosamine (GlcN) was reported. Different from the free phenoxazine-based ligand (L), Zn4L4 displayed the highest fluorescent intensity enhancement efficiency toward GlcN over other related natural mono- and disaccharides. Fluorescence titration demonstrated a 1:1 stoichiometric host-guest complex was formed with an association constant about 4.03 × 104 L/mol. 1H NMR spectroscopic studies confirmed this selectivity resulted from the multiple hydrogen bonding interactions formed between GlcN and Zn4L4. The present results suggested that rational arrangement of recognition sites in the confined space of metal-organic cage is crucial for the selectivity toward target guests.
Unified Protocol for Fe-Based Catalyzed Biaryl Cross-Couplings between Various Aryl Electrophiles and Aryl Grignard Reagents
Wang, Lei,Wei, Yi-Ming,Zhao, Yan,Duan, Xin-Fang
, p. 5176 - 5186 (2019/05/10)
The combination of commonly used FeCl3/SIPr with Ti(OEt)4/PhOM enabled a highly general iron-based catalyst system, which could efficiently catalyze the biaryl coupling reaction between various electrophiles (I, Br, Cl, OTs, OCONMe2, OSO2NMe2) and common or functionalized aryl Grignard reagents with high functional group tolerance. Selective couplings of aryl iodides and bromides over the corresponding oxygen-based electrophiles have been achieved, and thus a terphenyl acid intermediate for anidulafungin was conveniently synthesized via an orthogonal coupling strategy.