35554-38-2Relevant academic research and scientific papers
Light-Promoted Nickel Catalysis: Etherification of Aryl Electrophiles with Alcohols Catalyzed by a NiII-Aryl Complex
Cao, Rui,Lai, Chu-Hui,Li, Gang,Liu, Fengyi,Lu, Huan-Huan,Wang, Chao,Xiao, Jianliang,Xue, Dong,Yang, Liu,Zhang, Wei
supporting information, p. 12714 - 12719 (2020/06/02)
A highly effective C?O coupling reaction of (hetero)aryl electrophiles with primary and secondary alcohols is reported. Catalyzed by a NiII-aryl complex under long-wave UV (390–395 nm) irradiation in the presence of a soluble amine base without any additional photosensitizer, the reaction enables the etherification of aryl bromides and aryl chlorides as well as sulfonates with a wide range of primary and secondary aliphatic alcohols, affording synthetically important ethers. Intramolecular C?O coupling is also possible. The reaction appears to proceed via a NiI–NiIII catalytic cycle.
INHIBITORS OF RHO/MRTF/SRF-MEDIATED GENE TRANSCRIPTION AND METHODS FOR USE OF THE SAME
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Paragraph 0067; 0112-0112; 0114; 0120, (2019/10/20)
Disclosed herein are inhibitors of Rho/MRTF/SRF-mediated gene transcription, and methods for their use in treating or preventing diseases such as cancer and fibrosis. In particular, disclosed herein are compounds of Formula (I) and pharmaceutically accept
Semiheterogeneous Dual Nickel/Photocatalytic (Thio)etherification Using Carbon Nitrides
Cavedon, Cristian,Madani, Amiera,Seeberger, Peter H.,Pieber, Bartholom?us
supporting information, p. 5331 - 5334 (2019/07/08)
A carbon nitride material can be combined with homogeneous nickel catalysts for light-mediated cross-couplings of aryl bromides with alcohols under mild conditions. The metal-free heterogeneous semiconductor is fully recyclable and couples a broad range of electron-poor aryl bromides with primary and secondary alcohols as well as water. The application for intramolecular reactions and the synthesis of active pharmaceutical ingredients was demonstrated. The catalytic protocol is applicable for the coupling of aryl iodides with thiols as well.
Palladium-Catalyzed 2,2,2-Trifluoroethoxylation of Aromatic and Heteroaromatic Chlorides Utilizing Borate Salt and the Synthesis of a Trifluoro Analogue of Sildenafil
Peth?, Bálint,Zwillinger, Márton,Csenki, János T.,Káncz, Anna E.,Krámos, Balázs,Müller, Judit,Balogh, Gy?rgy T.,Novák, Zoltán
supporting information, p. 15628 - 15632 (2017/10/20)
A simple and convenient method was developed for the introduction of a 2,2,2-trifluoroethoxy group to various aromatic and heteroaromatic systems. The novel process utilizes aromatic chlorides as substrates, and tetrakis(2,2,2-trifluoroethoxy) borate salt as an inexpensive and readily available fluoroalkoxy source in a palladium-catalyzed cross-coupling reaction. The power of the developed methodology was demonstrated in the synthesis of a fluorous derivative of Sildenafil.
I 2 /TBHP-Promoted Approach to α-Keto Esters from Trifluoromethyl β-Diketones and Alcohols via C-C Bond Cleavage
Shao, Tongle,Fang, Xiang,Zhou, Jun,Jin, Chen,Yang, Xueyan,Wu, Fanhong
supporting information, p. 2018 - 2023 (2017/09/13)
A metal-free oxidative coupling reaction of trifluoromethyl β-diketones with alcohols for the synthesis of α-keto esters in good to excellent yields has been developed. Preliminary mechanistic studies suggest that an I 2 /TBHP promoted sequential iodination, C-C bond cleavage, C-O bond formation and oxidation pathway is involved in this reaction.
Well-defined copper(I) fluoroalkoxide complexes for trifluoroethoxylation of aryl and heteroaryl bromides
Huang, Ronglu,Huang, Yangjie,Lin, Xiaoxi,Rong, Mingguang,Weng, Zhiqiang
supporting information, p. 5736 - 5739 (2015/05/19)
Copper(I) fluoroalkoxide complexes bearing dinitrogen ligands were synthesized and the structure and reactivity of the complexes toward trifluoroethoxylation, pentafluoropropoxylation, and tetrafluoropropoxylation of aryl and heteroaryl bromides were investigated. Efficiency drive: A series of copper(I) fluoroalkoxide complexes bearing N,N ligands have been prepared and structurally characterized. These well-defined complexes serve as efficient reagents for the fluoroalkoxylation of aryl and heteroaryl bromides to produce a wide range of trifluoroethyl, pentafluoropropyl, and tetrafluoropropyl (hetero)aryl ethers in good to excellent yields.
Transition-Metal-Mediated Synthesis of Trifluoroethyl Aryl Ethers
Huang, Yangjie,Huang, Ronglu,Weng, Zhiqiang
, p. 2327 - 2331 (2015/10/19)
A series of well-defined copper(I) fluoroalkoxide complexes, [(phen)2Cu][OCH2RF], have been shown to undergo trifluoroethoxylation, pentafluoropropoxylation, and tetrafluoropropoxylation with aryl and heteroaryl bromides to generate the corresponding trifluoroethyl, pentafluoropropyl, and tetrafluoropropyl (hetero)aryl ethers in good to excellent yields. The reaction tolerates a variety of functional groups and demonstrates efficient scalability and practicality.
Facile synthesis of trifluoroethyl aryl ethers through copper-catalyzed coupling of CF3CH2OH with aryl- and heteroaryl boronic acids
Wang, Ruixin,Wang, Liang,Zhang, Kena,Li, Jingya,Zou, Dapeng,Wu, Yangjie,Wu, Yusheng
supporting information, p. 4815 - 4818 (2015/07/20)
An efficient copper-catalyzed Chan-Lam reaction of trifluoroethanol with a variety of aryl- and heteroaryl boronic acids has been developed. This research provides a practical method to synthesize trifluoroethyl aryl ethers in moderate to good yields under mild conditions.
ORGANIC COMPOUNDS
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Page/Page column 65; 66, (2014/05/24)
Novel benzofuran derivatives are disclosed. The derivatives have S1P1 receptor activity and/or disease modifying activity and find use in the treatment of conditions or diseases associated with the immune, vascular and nervous systems in animals and/or humans
