50616-86-9Relevant academic research and scientific papers
Direct C-H arylation of quinoxalinones with aryl acylperoxides under catalyst-free condition
Chen, Bajin,Wang, Shengpeng,Song, Jinxing,Wang, Xiaojun,Yu, Bencheng,Yang, Xiaobo
, (2021)
A simple and novel method for the direct C-H arylation of quinoxalinones with aryl acylperoxides has been developed. This reaction proceeded smoothly through a radical process under catalyst-free condition, giving the target products in moderate good yields. Such strategy provides a simple and green alternative for the synthesis of 3-arylquinoxalinones.
Aryl acyl peroxides for visible-light induced decarboxylative arylation of quinoxalin-2(1: H)-ones under additive-, metal catalyst-, and external photosensitizer-free and ambient conditions
Xie, Long-Yong,Peng, Sha,Yang, Li-Hua,Peng, Cun,Lin, Ying-Wu,Yu, Xianyong,Cao, Zhong,Peng, Yu-Yu,He, Wei-Min
supporting information, p. 374 - 378 (2021/01/28)
Aryl radicals were generated for the first time from cheap and easily available aryl acyl peroxides in eco-friendly ethyl acetate under ambient conditions and visible-light illumination in the absence of any additive, metal catalyst, or external photosensitizer. The present arylation of quinoxalin-2(1H)-ones was chemo- and regioselective, and provided good access to various 3-arylquinoxalin-2(1H)-ones. This journal is
Visible-light-induced C[sbnd]H arylation of quinoxalin-2(1H)-ones in H2O
Bao, Hanyang,Lin, Ziyun,Jin, Mengshi,Zhang, Hongdou,Xu, Jun,Chen, Bajin,Li, Wanmei
supporting information, (2021/02/16)
An efficient visible-light-induced C[sbnd]H arylation of quinoxalin-2(1H)-ones in H2O is developed, which has the advantages of mild reaction conditions, environmental friendliness and good functional group tolerance. This strategy provides a s
K2S2O8 mediated C-3 arylation of quinoxalin-2(1H)-ones under metal-, photocatalyst- And light-free conditions
Dutta, Nibedita Baruah,Bhuyan, Mayurakhi,Baishya, Gakul
, p. 3615 - 3624 (2020/02/06)
Two facile and effective C-3 arylation protocols of quinoxalin-2(1H)-ones with arylhydrazines and aryl boronic acids respectively via free radical cross-coupling reactions under metal-, photocatalyst- and light-free conditions have been unveiled. K2
Palladium-catalyzed direct Hiyama arylation of quinoxalin-2(1H)-ones with aryl siloxanes in water
Liu, Xinya,Liu, Zhenwei,Xue, Yingying,Li, Jingya,Zou, Dapeng,Wu, Yangjie,Wu, Yusheng
, (2020/11/19)
An efficient method for palladium-catalyzed direct Hiyama coupling of various quinoxalin-2(1H)-ones with aryl siloxanes has been developed. The protocol provides a convenient access to a variety of useful C3-arylated 1-methylquinoxalin-2(1H)-one derivatives in reasonable yields by using low cost water as a solvent and oxygen as an oxidant.
Synthetic method of 3-arylquinoxalin-2(1H)-one derivatives
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Paragraph 0030; 0034-0038; 0191-0195, (2019/05/11)
The present invention relates to a method for manufacturing quinoxalin-2(1H)-one derivatives in which an aryl group is substituted at position 3 by conducting a reaction of an aryl diazonium salt from quinoxalin-2(1H)-one derivatives by using a visible li
Transition-Metal-Free Direct C-H Arylation of Quinoxalin-2(1H)-ones with Diaryliodonium Salts at Room Temperature
Yin, Kun,Zhang, Ronghua
supporting information, p. 1530 - 1533 (2017/04/13)
A method of synthesizing 3-arylquinoxalin-2(1H)-ones using diaryliodonium tetrafluoroborates under mild conditions is described. This protocol has a wide substrate scope and enables direct C-H functionalization. The synthetic potential of this coupling was explored using a range of readily accessible diaryliodonium salts and quinoxalin-2(1H)-ones.
Transition Metal-Free Iodosobenzene-Promoted Direct Oxidative 3-Arylation of Quinoxalin-2(H)-ones with Arylhydrazines
Paul, Sanjay,Ha, Ji Hyeon,Park, Ga Eul,Lee, Yong Rok
supporting information, p. 1515 - 1521 (2017/05/05)
A transition metal-free iodosobenzene-promoted direct oxidative 3-arylation of quinoxalin-2(H)-ones was developed using various arylhydrazines under air. The protocol affords a variety of 3-arylquinoxalin-2(H)-one derivatives in moderate to good yields. This method provides a rapid access to biologically interesting benzo[g]quinoxalinones and pyrido[3,4-b]pyrazinones. The present methodology features high functional group tolerance including base-sensitive groups as well as allyl- and benzyl-substituted quinoxalin-2(H)-ones under mild reaction conditions. (Figure presented.).
Palladium(II)-catalyzed oxidative arylation of quinoxalin-2(1 H)-ones with arylboronic acids
Carrer, Amandine,Brion, Jean-Daniel,Messaoudi, Samir,Alami, Mouad
supporting information, p. 5606 - 5609 (2013/11/19)
A straightforward palladium-catalyzed oxidative C-3 arylation of quinoxalin-2(1H)-ones with arylboronic acids is reported. This protocol is compatible with a wide range of functional groups and allows construction of various biologically important quinoxalin-2(1H)-one backbones.
[Ir(P-OP)]-catalyzed asymmetric hydrogenation of diversely substituted C=N-containing heterocycles
Nunez-Rico, Jose Luis,Vidal-Ferran, Anton
supporting information, p. 2066 - 2069 (2013/06/04)
Iridium(I) complexes of enantiomerically pure phosphine-phosphite ligands ([Ir(Cl)(cod)(P - OP)]) efficiently catalyze the enantioselective hydrogenation of diverse C=N-containing heterocyclic compounds (benzoxazines, benzoxazinones, benzothiazinones, and quinoxalinones; 25 examples, up to 99% ee). A substrate-to-catalyst ratio as high as 2000:1 was reached.
