299928-52-2Relevant academic research and scientific papers
Transition metal free oxygenation of 8-aminoquinoline amides in water
Yao, Xinghui,Weng, Xin,Wang, Kaixuan,Xiang, Haifeng,Zhou, Xiangge
, p. 2472 - 2476 (2018)
The oxygenation of 8-aminoquinoline amides by benzoyl peroxide at the C5 position in water is developed in the absence of a transition metal catalyst, affording the desired products in moderate to good yields of up to 88%. Mechanism studies reveal that the reaction would involve a radical process.
Transition Metal-Free Regioselective Remote C?H Bond 2,2,2-Trifluoroethoxylation of 8-Aminoquinoline Derivatives at the C5 Position
Ruyet, Louise,Poisson, Thomas,Besset, Tatiana
supporting information, p. 3407 - 3410 (2021/06/28)
The regioselective 2,2,2-trifluoroethoxylation at the C5 position of amides derived from the 8-aminoquinoline has been developed. In the presence of PIDA, an unprecedented and undirected transition metal-free transformation was achieved using the readily available and appealing 2,2,2-trifluoroethanol as the fluorinated source. The selective distal 2,2,2-trifluoroethoxylation of an array of amides was achieved in moderate to good yields (12 examples, up to 61 % yield). This approach provided efficient access to high-value added fluorinated quinoline derivatives, key building blocks for bulk and fine chemical industry.
Nickel-mediated C(sp2)-H amidation in synthesis of secondary sulfonamides via sulfonyl azides as amino source
Xu, Peng,Ding, Peng-Fei,Zhang, Mei-Qi,Xia, Yu-Shi,Xie, Ting
, (2021/02/16)
In this paper, Ni(II)- Catalyzed ortho-amidation of C(sp2)-H bond with sulfonyl azides directed by (quinolin-8-yl) amine (AQ-amine) is described. The method provides a straightforward method for the synthesis of sulfonamides from available sulfonyl azides via the transition-metal-catalyzed C(sp2)-N bond forming reaction. The amidation reactions exhibit high functional group compatibility, which might proceed a Ni(III)/Ni(I) catalytic cycle. We also applied sulfonamide compound in OLEDs, which exhibits the certain application potential in OLEDs field.
Highly regioselective and stereoselective synthesis of C-Aryl glycosidesvianickel-catalyzedortho-C-H glycosylation of 8-aminoquinoline benzamides
Chen, Xi,Ding, Ya-Nan,Gou, Xue-Ya,Liang, Yong-Min,Luan, Yu-Yong,Niu, Zhi-Jie,Shi, Wei-Yu,Zhang, Zhe,Zheng, Nian
, p. 8945 - 8948 (2021/09/10)
C-Aryl glycosides are of high value as drug candidates. Here a novel and cost-effective nickel catalyzedortho-CAr-H glycosylation reaction with high regioselectivity and excellent α-selectivity is described. This method shows great functional group compatibility with various glycosides, showing its synthetic potential. Mechanistic studies indicate that C-H activation could be the rate-determining step.
C-5 selective chlorination of 8-aminoquinoline amides using dichloromethane
Lin, Xinxin,Zeng, Cuilian,Liu, Chengkou,Fang, Zheng,Guo, Kai
supporting information, p. 1352 - 1357 (2021/02/26)
An oxidant-free electrochemical regioselective chlorination of 8-aminoquinoline amides at ambient temperature in batch and continuous-flow was achieved. Inert DCM was used as the chlorinating reagent. Owing to the continuous-flow setup, the reaction scale
Visible-Light-Triggered Decarboxylative Alkylation of 8-Acylaminoquinoline with N -Hydroxyphthalimide Ester
Aisha, Aertuke,Jin, Can,Li, Deyu,Sun, Bin,Zhu, Rui,Zhuang, Xiaohui
supporting information, p. 677 - 682 (2020/04/08)
A facile protocol for visible-light-induced decarboxylative radical coupling of NHP esters with 8-aminoquinoline amides is reported, affording a highly efficient approach to synthesize a variety of 2-alkylated or 2,4-dialkylated 8-aminoquinoline derivativ
Metal-Free Electrochemical Oxidative Dihalogenation of Quinolines on the C5 and C7 Positions Using N-Halosuccinimides
Hou, Jiahao,Wang, Kai,Zhang, Changjun,Wei, Tingting,Bai, Renren,Xie, Yuanyuan
supporting information, p. 6382 - 6386 (2020/10/19)
An efficient and convenient method for electrochemically oxidative dichlorination or dibromination of 8-aminoquinolines on C5 and C7 positions using N-halosuccinimides (NCS and NBS) as the halogen source was described. Substrates with various functional g
Catalyst- And oxidant-free electrochemical: para -selective hydroxylation of N -arylamides in batch and continuous-flow
Chen, Meng-Yi,Fang, Zheng,Guo, Kai,Lin, Xin-Xin,Liu, Cheng-Kou
supporting information, p. 6437 - 6443 (2020/11/09)
Hydroxyl compounds serve as key building blocks in the preparation of biologically active natural products and drugs. Traditionally, hydroxylation of the aromatic ring is achieved using stoichiometric amounts of oxidants, which leads to low atom-economy, undesired by-products, potential explosion risk and environmental pollution. Recently, electrosynthesis has attracted increasing attention as it employs clean electrical energy to promote redox reactions avoiding the use of oxidants. However, due to the poor mass and heat transfers of batch cells, low productivity and selectivity limit its further application. Herein, we develop a catalyst-, oxidant-, acidic solvent- and quaternary ammonium salt-free electrochemical para-selective hydroxylation of N-arylamides at room temperature in batch and continuous-flow. This proposal features excellent position control and water, air and functional group tolerance. Also, it is easy to scale up with higher productivity and selectivity using a flow electrolysis cell.
Method for preparing phenanthridone compound by copper compound induction
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Paragraph 0150; 0159, (2019/02/25)
The invention belongs to the fields of organic synthesis and metal catalysis, and discloses a method for preparing a phenanthridone compound by copper compound induction. The method comprises the following steps: adding a benzamide derivative, an O-bromob
Copper-mediated synthesis of quinazolin-4(3: H)-ones from N-(quinolin-8-yl)benzamide and amidine hydrochlorides
Ban, Zihui,Cui, Xinfeng,Hu, Fangpeng,Lu, Guoqiang,Luo, Nan,Huang, Guosheng
supporting information, p. 12963 - 12966 (2019/08/28)
An efficient copper-mediated tandem C(sp2)-H amination to provide quinazolinones from N-(quinolin-8-yl)benzamide and amidine hydrochlorides has been developed. It can afford rather complex products in a single step synthesis from easily availab
