1
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Jia H, Li N, Tang C, Ni W, Zhao X, Sun J, Wu F, Shen X, Zhai H. α-Acyloxylation of Ketones/Cyclic Ethers Mediated by Hypervalent Iodine(III) Reagents as Oxidants and Nucleophilic Sources. J Org Chem 2024; 89:2055-2063. [PMID: 38207340 DOI: 10.1021/acs.joc.3c02526] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2024]
Abstract
This study describes a catalyst-free α-acyloxylation of ketones and a KBr-mediated α-acyloxylation of cyclic ethers. These conversions are effectively mediated by hypervalent iodine(III) reagents serving dual roles as the oxidant and nucleophilic source. Consequently, esters are produced directly in moderate to excellent yields. The proposed method features good functional group compatibility, a broad substrate scope, and high synthetic efficiency and is remarkably environmentally friendly.
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Affiliation(s)
- Hao Jia
- Biomass Oligosaccharides Engineering Technology Research Center of Anhui Province, Engineering Research Center of Biomass Conversion and Pollution Prevention of Anhui Educational Institutions, Fuyang Normal University, Fuyang 236037, China
| | - Nan Li
- Biomass Oligosaccharides Engineering Technology Research Center of Anhui Province, Engineering Research Center of Biomass Conversion and Pollution Prevention of Anhui Educational Institutions, Fuyang Normal University, Fuyang 236037, China
| | - Chunmei Tang
- Biomass Oligosaccharides Engineering Technology Research Center of Anhui Province, Engineering Research Center of Biomass Conversion and Pollution Prevention of Anhui Educational Institutions, Fuyang Normal University, Fuyang 236037, China
| | - Wenjing Ni
- Biomass Oligosaccharides Engineering Technology Research Center of Anhui Province, Engineering Research Center of Biomass Conversion and Pollution Prevention of Anhui Educational Institutions, Fuyang Normal University, Fuyang 236037, China
| | - Xinru Zhao
- Biomass Oligosaccharides Engineering Technology Research Center of Anhui Province, Engineering Research Center of Biomass Conversion and Pollution Prevention of Anhui Educational Institutions, Fuyang Normal University, Fuyang 236037, China
| | - Jing Sun
- Biomass Oligosaccharides Engineering Technology Research Center of Anhui Province, Engineering Research Center of Biomass Conversion and Pollution Prevention of Anhui Educational Institutions, Fuyang Normal University, Fuyang 236037, China
| | - Fufang Wu
- Biomass Oligosaccharides Engineering Technology Research Center of Anhui Province, Engineering Research Center of Biomass Conversion and Pollution Prevention of Anhui Educational Institutions, Fuyang Normal University, Fuyang 236037, China
| | - Xiaobao Shen
- Biomass Oligosaccharides Engineering Technology Research Center of Anhui Province, Engineering Research Center of Biomass Conversion and Pollution Prevention of Anhui Educational Institutions, Fuyang Normal University, Fuyang 236037, China
| | - Hongbin Zhai
- Institute of Marine Biomedicine, Shenzhen Polytechnic, Shenzhen 518055, China
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2
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Alam T, Patel BK. Electrochemical N-Aroylation of Sulfoximines by Using Benzoyl Hydrazines with H 2 Generation. Chemistry 2023:e202303444. [PMID: 37990751 DOI: 10.1002/chem.202303444] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2023] [Revised: 11/17/2023] [Accepted: 11/21/2023] [Indexed: 11/23/2023]
Abstract
Developed here is a robust electrochemical cross-coupling reaction between aroyl hydrazine and NH-sulfoximine via concomitant cleavage and formation of C(sp2 )-N bonds with the evolution of H2 and N2 as innocuous by-products. This sustainable protocol avoids the use of toxic reagents and occurs at room temperature. The reaction proceeds via the generation of an aroyl and a sulfoximidoyl radical via anodic oxidation under constant current electrolysis (CCE), affording N-aroylated sulfoximine. The strategy is applied to late-stage sulfoximidation of L-menthol, (-)-borneol, D-glucose, vitamin-E derivatives, and marketed drugs such as probenecid, ibuprofen, flurbiprofen, ciprofibrate, and sulindac. In addition, the present methodology is mild, high functional group tolerance with broad substrate scope and scalable.
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Affiliation(s)
- Tipu Alam
- Department of Chemistry, Indian Institute of Technology Guwahati, 781039, Guwahati, Assam, India
| | - Bhisma K Patel
- Department of Chemistry, Indian Institute of Technology Guwahati, 781039, Guwahati, Assam, India
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3
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Wang X, Frings M, Rissanen K, Bolm C. Synthesis of o-Sulfinylanilines from N-Alkyl Sulfoximines and Arynes. J Org Chem 2023; 88:2666-2669. [PMID: 36701544 DOI: 10.1021/acs.joc.3c00012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
N-Alkyl sulfoximines react with arynes generated in situ under mild conditions providing o-sulfinylanilines in good yields. The transformation is characterized by a broad substrate scope and a good functional group tolerance. The structure of a reaction product was confirmed by single-crystal X-ray diffraction.
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Affiliation(s)
- Xianliang Wang
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074 Aachen, Germany
| | - Marcus Frings
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074 Aachen, Germany
| | - Kari Rissanen
- University of Jyvaskyla, Department of Chemistry, FI-40014 Jyväskylä, Finland
| | - Carsten Bolm
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074 Aachen, Germany
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4
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Wan JL, Huang JM. Electrochemically Enabled Sulfoximido-Oxygenation of Alkenes with NH-Sulfoximines and Alcohols. Org Lett 2022; 24:8914-8919. [DOI: 10.1021/acs.orglett.2c03774] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Jin-Lin Wan
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, Guangdong 510640, China
| | - Jing-Mei Huang
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, Guangdong 510640, China
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5
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Dong J, Su Q, Li D, Mo J. Visible-Light-Induced One-Pot Cross Coupling of NH-Sulfoximines with Toluene. Org Lett 2022; 24:8447-8451. [DOI: 10.1021/acs.orglett.2c03575] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Jingru Dong
- Key Laboratory of Chemistry and Engineering of Forest Products, State Ethnic Affairs Commision, Guangxi Key Laboratory of Chemistry and Engineering of Forest Products, Guangxi Collaborative Innovation Center for Chemistry and Engineering of Forest Products, Guangxi Minzu University, Nanning 530006, China
| | - Qiumei Su
- Key Laboratory of Chemistry and Engineering of Forest Products, State Ethnic Affairs Commision, Guangxi Key Laboratory of Chemistry and Engineering of Forest Products, Guangxi Collaborative Innovation Center for Chemistry and Engineering of Forest Products, Guangxi Minzu University, Nanning 530006, China
| | - Dongyan Li
- Key Laboratory of Chemistry and Engineering of Forest Products, State Ethnic Affairs Commision, Guangxi Key Laboratory of Chemistry and Engineering of Forest Products, Guangxi Collaborative Innovation Center for Chemistry and Engineering of Forest Products, Guangxi Minzu University, Nanning 530006, China
| | - Junming Mo
- Key Laboratory of Chemistry and Engineering of Forest Products, State Ethnic Affairs Commision, Guangxi Key Laboratory of Chemistry and Engineering of Forest Products, Guangxi Collaborative Innovation Center for Chemistry and Engineering of Forest Products, Guangxi Minzu University, Nanning 530006, China
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6
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Mao LL, Zhou AX, Zhu XH, Peng H, Quan LX, Wan JP, Yang SD. Visible-Light-Mediated Tandem Difluoromethylation/Cyclization of Alkenyl Aldehydes toward CF 2H-Substituted Chroman-4-one Derivatives. J Org Chem 2022; 87:12414-12423. [PMID: 36007244 DOI: 10.1021/acs.joc.2c01689] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
An efficient and facile visible-light-mediated tandem difluoromethylation/cyclization of alkenyl aldehydes, with easily accessible and air-stable [Ph3PCF2H]+Br- as the difluoromethylation reagent, has been established. A range of CF2H-substituted chroman-4-one skeletons and their derivatives, such as 2,3-dihydroquinolin-4(1H)-ones, chroman, 3,4-dihydronaphthalen-1(2H)-one, 2,3-dihydrobenzofuran, and 2,3-dihydro-1H-inden-1-one, are efficiently produced in moderate to good yields with excellent chemoselectivity under mild reaction conditions.
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Affiliation(s)
- Liu-Liang Mao
- College of Chemistry and Environment Science, Shangrao Normal University, Shangrao 334001, China
| | - An-Xi Zhou
- College of Chemistry and Environment Science, Shangrao Normal University, Shangrao 334001, China
| | - Xian-Hong Zhu
- College of Chemistry and Environment Science, Shangrao Normal University, Shangrao 334001, China
| | - Huanan Peng
- College of Chemistry and Environment Science, Shangrao Normal University, Shangrao 334001, China
| | - Li-Xia Quan
- College of Chemistry and Environment Science, Shangrao Normal University, Shangrao 334001, China
| | - Jie-Ping Wan
- College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang 330022, China
| | - Shang-Dong Yang
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, China
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7
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Li X, Huang J, Xu L, Liu P, Wei Y. Synthesis of β-Arylseleno Sulfoximines: A Metal-Free Three-Component Reaction Mediated by Tetrabutylammonium Tribromide. J Org Chem 2022; 87:10684-10697. [PMID: 35939820 DOI: 10.1021/acs.joc.2c00880] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A tetrabutylammonium tribromide-mediated three-component reaction of alkenes, diselenides, and sulfoximines has been established herein, providing direct and metal-free access to diverse β-arylseleno sulfoximine derivatives. This regioselective sulfoximido-selenization protocol proceeds efficiently under mild and ambient conditions with generally good yields. This strategy is featured by step and atom economy, practicability, a broad substrate scope, and gram-scale synthesis.
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Affiliation(s)
- Xiaoman Li
- School of Chemistry and Chemical Engineering/Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan, Shihezi University, Shihezi City 832003, Xinjiang, P. R. China
| | - Jiawei Huang
- School of Chemistry and Chemical Engineering/Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan, Shihezi University, Shihezi City 832003, Xinjiang, P. R. China
| | - Liang Xu
- School of Chemistry and Chemical Engineering/Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan, Shihezi University, Shihezi City 832003, Xinjiang, P. R. China
| | - Ping Liu
- School of Chemistry and Chemical Engineering/Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan, Shihezi University, Shihezi City 832003, Xinjiang, P. R. China
| | - Yu Wei
- School of Chemistry and Chemical Engineering/Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan, Shihezi University, Shihezi City 832003, Xinjiang, P. R. China
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8
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Yang YM, Zhang C, Yang H, Tang ZY. Photo-catalyzed acetoxysulfoximination of styrene with sulfoximidoyl thianthrenium salt. Chem Commun (Camb) 2022; 58:8580-8583. [PMID: 35818861 DOI: 10.1039/d2cc02542f] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We report the design and synthesis of a redox-active thianthrenium-containing sulfoximination reagent. Photo-catalyzed acetoxysulfoximination of styrene with various functional groups is described. Preliminary mechanistic studies indicated that the sulfoximination reagent (2aa) received a single electron transfer (SET) from the photo-excited Ir(ppy)3 catalyst to produce a sulfoximidoyl radical as a key intermediate in this transformation.
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Affiliation(s)
- Yu-Ming Yang
- School of Pharmaceutical Science (Shenzhen), Sun Yat-sen University, Shenzhen, Guangdong, 518107, China.
| | - Cairong Zhang
- School of Pharmaceutical Science (Shenzhen), Sun Yat-sen University, Shenzhen, Guangdong, 518107, China.
| | - Hanlun Yang
- School of Pharmaceutical Science (Shenzhen), Sun Yat-sen University, Shenzhen, Guangdong, 518107, China.
| | - Zhen-Yu Tang
- School of Pharmaceutical Science (Shenzhen), Sun Yat-sen University, Shenzhen, Guangdong, 518107, China.
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9
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Ma D, Kong D, Wu P, Tu Y, Shi P, Wang X, Bolm C. Introduction of Lipophilic Side Chains to NH-Sulfoximines by Palladium Catalysis Under Blue Light Irradiation. Org Lett 2022; 24:2238-2241. [PMID: 35293757 DOI: 10.1021/acs.orglett.2c00622] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Palladium catalysis under blue (LED) light irradiation allows conversion of NH-sulfoximines into products with long lipophilic side chains attached to the S═N moiety. The three-component reactions involve both radicals and organometallic intermediates stemming from alkyl bromides and butadienes. The substrate scope is broad, and the products are formed in moderate to good yields.
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Affiliation(s)
- Ding Ma
- Institute of Organic Chemistry, RWTH Aachen University, D-52074 Aachen, Germany
| | - Deshen Kong
- Institute of Organic Chemistry, RWTH Aachen University, D-52074 Aachen, Germany
| | - Peng Wu
- Institute of Organic Chemistry, RWTH Aachen University, D-52074 Aachen, Germany
| | - Yongliang Tu
- Institute of Organic Chemistry, RWTH Aachen University, D-52074 Aachen, Germany
| | - Peng Shi
- Institute of Organic Chemistry, RWTH Aachen University, D-52074 Aachen, Germany
| | - Xianliang Wang
- Institute of Organic Chemistry, RWTH Aachen University, D-52074 Aachen, Germany
| | - Carsten Bolm
- Institute of Organic Chemistry, RWTH Aachen University, D-52074 Aachen, Germany
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10
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Tu Y, Shi P, Bolm C. Visible-Light-Mediated α-Ketoacylations of NH-Sulfoximines with gem-Difluoroalkenes. Org Lett 2022; 24:907-911. [PMID: 35040650 DOI: 10.1021/acs.orglett.1c04254] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A photochemical approach for the preparation of α-keto-N-acyl sulfoximines from NH sulfoximines and gem-difluoroalkenes has been developed. In the presence of NBS, the reactions proceed in air without the need of a photocatalyst or additional oxidant. Results of mechanistic studies suggest that the two oxygens in the products stem from water and dioxygen.
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Affiliation(s)
- Yongliang Tu
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074 Aachen, Germany
| | - Peng Shi
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074 Aachen, Germany
| | - Carsten Bolm
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074 Aachen, Germany
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11
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Bhattacharjee S, Laru S, Hajra A. Hypervalent iodine( iii)-mediated oxidative dearomatization of 2 H-indazoles towards indazolyl indazolones. Org Biomol Chem 2022; 20:8893-8897. [DOI: 10.1039/d2ob01776h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
We accomplished a [bis(trifluoroacetoxy)iodo]benzene mediated oxidative dearomatization of 2H-indazoles, obtaining a new family of N-1 indazolyl indazolone derivatives in good to excellent yields through C–N and C–O bond formations.
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Affiliation(s)
- Suvam Bhattacharjee
- Department of Chemistry, Visva-Bharati (A Central University), Santiniketan, 731235, West Bengal, India
| | - Sudip Laru
- Department of Chemistry, Visva-Bharati (A Central University), Santiniketan, 731235, West Bengal, India
| | - Alakananda Hajra
- Department of Chemistry, Visva-Bharati (A Central University), Santiniketan, 731235, West Bengal, India
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