33757-54-9Relevant academic research and scientific papers
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-H Amidation and Amination of Arenes and Heteroarenes with Amide and Amine using Cu-MnO as a Reusable Catalyst under Mild Conditions
Singh, Harshvardhan,Sen, Chiranjit,Suresh, Eringathodi,Panda, Asit B.,Ghosh, Subhash C.
, p. 3261 - 3275 (2021/02/16)
An atom-economical and efficient route for the direct amidation and amination of aryl C-H bonds using our synthesized recyclable heterogeneous Cu-MnO catalyst is reported here. The direct C-H amidation was carried out using a simple amide without any prea
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
Oxidative C-H/N-H Annulation of Aromatic Amides with Dialkyl Malonates: Access to Isoindolinones and Dihydrobenzoindoles
Pradhan, Sourav,Roy, Subhasish,Banerjee, Sonbidya,De, Pinaki Bhusan,Punniyamurthy, Tharmalingam
, p. 5741 - 5749 (2020/05/19)
A copper-mediated oxidative C-H/N-H annulation of aromatic amides with dialkyl malonates has been presented to afford synthetically valuable dihydrobenzoindoles and isoindolinones. The reaction proceeds through direct oxidative C(sp2)-H/C(sp3)-H coupling followed by an intramolecular N-H/C(sp3)-H dehydrogenative coupling to deliver the target motifs with broad scope and functional group tolerance.
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
Regioselective remote C5 cyanoalkoxylation and cyanoalkylation of 8-aminoquinolines with azobisisobutyronitrile
Wen, Chunxia,Zhong, Ronglin,Qin, Zengxin,Zhao, Mengfei,Li, Jizhen
supporting information, p. 9529 - 9532 (2020/09/03)
The efficient regioselective C-H cyanoalkoxylation and cyanoalkylation of 8-aminoquinoline derivatives at the C5 position have been achieved under O2 and N2 atmospheres, respectively. Using 2,2′-azobisisobutyronitrile (AIBN) as a radical precursor, the pr
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.
Carbon-Carbon Bond Formation of Trifluoroacetyl Amides with Grignard Reagents via C(O)-CF3 Bond Cleavage
Zhu, Longzhi,Le, Liyuan,Yan, Mingpan,Au, Chak-Tong,Qiu, Renhua,Kambe, Nobuaki
, p. 5635 - 5644 (2019/05/10)
The reaction of trifluoroacetyl amides with Grignard reagent for the substitution of CF3 group with various alkyl or aryl groups is described. A variety of aryl, quinolin-8-yl, and (hetero)alkyl functional groups as well as F, Cl, and Br atoms are well tolerated. These moisture-stable and easily available trifluoroacetyl amides can be conveniently obtained and used as new versatile precursors for isocyanates. The control experiments show that the reaction proceeds via an isocyanate intermediate and/or alkoxide/amide dual anionic intermediate.
Carbon-Carbon Bond Formation of Trifluoroacetyl Amides with Grignard Reagents via C(O)-CF3 Bond Cleavage
Zhu, Longzhi,Le, Liyuan,Yan, Mingpan,Au, Chak-Tong,Qiu, Renhua,Kambe, Nobuaki
, (2019/05/07)
The reaction of trifluoroacetyl amides with Grignard reagent for the substitution of CF3 group with various alkyl or aryl groups is described. A variety of aryl, quinolin-8-yl, and (hetero)alkyl functional groups as well as F, Cl, and Br atoms are well tolerated. These moisture-stable and easily available trifluoroacetyl amides can be conveniently obtained and used as new versatile precursors for isocyanates. The control experiments show that the reaction proceeds via an isocyanate intermediate and/or alkoxide/amide dual anionic intermediate.
