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Dong J, Wu S, Geng F, Yan Y, Liu L, Zhou Y. Selective Oxidative Methyl C-H Functionalization of Butylated Hydroxytoluene toward Arylimines/ N-Heterocycles. J Org Chem 2023; 88:14649-14658. [PMID: 37816698 DOI: 10.1021/acs.joc.3c01643] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/12/2023]
Abstract
A metal-free and selective oxidative methyl C-H functionalization of BHT with aniline compounds has been developed. This innovative method enables the facile and efficient synthesis of a diverse array of BHT-functionalized N-containing skeletons, including arylamines, benzoxazoles, benzothiazoles, benzimidazoles, quinazolines, and quinazolinones, all of which are challenging to access. The control experiment involving TEMP18O suggests that the radical adduct of TEMPO with the benzyl radical of BHT may serve as an intermediate.
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Affiliation(s)
- Jianyu Dong
- School of Physics and Chemistry, Hunan First Normal University, Changsha 410205, China
| | - Shaofeng Wu
- School of Physics and Chemistry, Hunan First Normal University, Changsha 410205, China
- State Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources, Key Laboratory of Oil and Gas Fine Chemicals, Ministry of Education & Xinjiang Uygur Autonomous Region, Urumqi Key Laboratory of Green Catalysis and Synthesis Technology, College of Chemistry, Xinjiang University, Urumqi 830017, China
| | - Furong Geng
- School of Physics and Chemistry, Hunan First Normal University, Changsha 410205, China
- Advanced Catalytic Engineering Research Center of the Ministry of Education, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China
| | - Yani Yan
- Advanced Catalytic Engineering Research Center of the Ministry of Education, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China
| | - Long Liu
- School of Physics and Chemistry, Hunan First Normal University, Changsha 410205, China
- Advanced Catalytic Engineering Research Center of the Ministry of Education, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China
| | - Yongbo Zhou
- Advanced Catalytic Engineering Research Center of the Ministry of Education, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China
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Hasegawa S, Inagaki M, Kato S, Li Z, Kimura Y, Abe H. Synthesis of nucleoside oligophosphates by electrophilic activation of phosphorothioate. Org Biomol Chem 2023; 21:3997-4001. [PMID: 37186249 DOI: 10.1039/d2ob02260e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/17/2023]
Abstract
We herein report a new synthetic method for nucleoside oligophosphates based on electrophilic activation of 5'-phosphorothioate nucleotides. The treatment of phosphorothioate with 2,4-dinitrochlorobenzene (DNCB) efficiently afforded the key activated species, electrophilic thioester nucleotides (EPT-Ns), which were coupled with various phosphate reagents to afford the target nucleoside oligophosphates, including an mRNA cap analog.
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Affiliation(s)
| | | | - Shunichi Kato
- Graduate School of Science, Nagoya University, Japan.
| | - Zhenmin Li
- Graduate School of Science, Nagoya University, Japan.
| | | | - Hiroshi Abe
- Graduate School of Science, Nagoya University, Japan.
- CREST, Japan Science and Technology Agency, Japan
- Institute for Glyco-core Research (iGCORE), Japan
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Synthesis and evaluation of the antioxidant activity of amino derivatives of o-isobornylphenols. Russ Chem Bull 2022. [DOI: 10.1007/s11172-022-3691-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/01/2023]
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Koshelev VN, Primerova OV, Vorobyev SV, Ivanova LV. Synthesis, Redox Properties and Antibacterial Activity of Hindered Phenols Linked to Heterocycles. Molecules 2020; 25:molecules25102370. [PMID: 32443779 PMCID: PMC7287627 DOI: 10.3390/molecules25102370] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2020] [Revised: 05/13/2020] [Accepted: 05/19/2020] [Indexed: 02/06/2023] Open
Abstract
A series of benzotriazole, cyclic amides and pyrimidine derivatives, containing 2,6-di-tert-butyl-phenol fragments, were synthesized. The redox properties of obtained compounds were studied using the cyclic voltammetry on a platinum electrode in acetonitrile. The oxidation potentials of all substances were comparable to those of BHT. The obtained compounds were tested for their antibacterial activity, and N-(2-(3,5-di-tert-butyl-4-hydroxyphenyl)-2-oxoethyl)isatin (32 μg/mL) exerted good activity against Staphylococcus aureus.
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