14385-52-5Relevant academic research and scientific papers
Nickel-Catalyzed Intramolecular Nucleophilic Addition of Aryl Halides to Aryl Ketones for the Synthesis of Benzofuran Derivatives
Zhu, Xiao-Rui,Deng, Chen-Liang
, p. 1842 - 1848 (2021/02/09)
A nickel-catalyzed intramolecular nucleophilic addition reaction of aryl halides to aryl ketones for the formation of benzofuran derivatives has been developed. A number of substrates bearing electron-donating or electron-withdrawing groups were subjected to the standard reaction conditions, giving the corresponding products in moderate to good yields.
Synthesis of benzofurans from the cyclodehydration of α-phenoxy ketones mediated by Eaton’s reagent
Ma, Lin,Ma, Zhanwei,Zhang, Min,Zhou, Min
, p. 426 - 436 (2020/03/23)
Cyclodehydration of α-phenoxy ketones promoted by Eaton’s reagent (phosphorus pentoxide–methanesulfonic acid) is used to prepare 3-substituted or 2,3-disubstituted benzofurans with moderate to excellent yields under mild conditions. The method provides a facile access to benzofurans from readily available starting materials such as phenols and α-bromo ketones. The reaction is highly efficient, which is attributed to the good reactivity and fluidity of Eaton’s reagent. The reaction can be applied to prepare naphthofurans, furanocoumarins, benzothiophenes, and benzopyrans.
Nickel catalyzed intramolecular oxidative coupling: synthesis of 3-aryl benzofurans
Aggarwal, Sakshi,Satyanarayana, Gedu,Sreenivasulu, Chinnabattigalla,Srinivas, Dasari
, p. 22264 - 22272 (2020/07/03)
Recent research has been focused on the transition metal-catalyzed reactions. Herein we have developed nickel-catalyzed synthesis of 3-aryl benzofurans fromortho-alkenyl phenolsviaintramolecular dehydrogenative coupling. Notably, simple O2gas served as an oxidant, without using any sacrificial hydrogen acceptor. The strategy enabled the synthesis of 3-aryl benzofurans in good to excellent yields.
Exogenous-oxidant-free electrochemical oxidative C-H sulfonylation of arenes/heteroarenes with hydrogen evolution
Yuan, Yong,Yu, Yi,Qiao, Jin,Liu, Pan,Yu, Banying,Zhang, Wukun,Liu, Huilin,He, Min,Huang, Zhiliang,Lei, Aiwen
supporting information, p. 11471 - 11474 (2018/10/20)
An efficient and environmentally benign electrochemical oxidative radical C-H sulfonylation of arenes/heteroarenes was developed in this work. A series of significant diarylsulfones were prepared under mild catalyst- and exogenous-oxidant-free reaction conditions, which efficiently avoid the issues of desulfonylation or over-reduction of sulfonyl groups.
TfOH-SiO2 as an efficient and recyclable catalyst for synthesis of 3-arylbenzofurans
Wang, Baolong,Hu, Jiaxing,Zhang, Fanglin,Zheng, Hua
, p. 103 - 113 (2016/03/01)
A convenient process for the synthesis of 3-arylbenzofurans and their derivatives by 2-phenoxy-1-phenylethanones via TfOH-SiO2 catalyzed is developed. This method provides several advantages such as simple work-up procedure, simple post-treatme
Palladium(II)-catalyzed intramolecular addition of arylboronic acids to ketones
Liu, Guixia,Lu, Xiyan
, p. 7324 - 7330 (2008/12/20)
A palladium(II)-catalyzed intramolecular addition of arylboronic acids to ketones was developed. Compared to Pd(OAc)2 catalysis system, cationic palladium complex with dppp as the ligand has higher catalytic activity and efficiency for wider sc
Clay catalyzed facile cyclodehydration under microwave: Synthesis of 3-substituted benzofurans
Meshram,Chandra Sekhar,Ganesh,Yadav
, p. 1273 - 1274 (2007/10/03)
The preparation of 3-substituted benzofurans from α-phenoxy acetophenones and related compounds using clay under microwave irradiation is described. The inexpensive, reusable clay and non-solvent reaction conditions are the important features of the proce
Substituent Effect of 1,4-Benzenedicarbonitriles as Sensitizers on the Photoinduced Electron Transfer Reactions in Alcohol
Suzuki, Masanori,Ikeno, Taketo,Osoda, Kazuhiko,Narasaka, Koichi,Suenobu, Tomoyoshi,Fukuzumi, Shunichi,Ishida, Akito
, p. 2269 - 2277 (2007/10/03)
In the photosensitized electron transfer reaction of 6,6-diphenyl-1,4-dioxaspiro[4.5]decane in methanol (MeOH), the quantum yield is increased by the use of 2-methylbenzene-1,4-dicarbonitrile (2-methyl-BDC) or 2,5-dirnethylbenzene-1,4-dicarbonitrile (2,5-
