1
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Zhong P, Zhang C, Li Y, Su C, Zhang C, Cui DM. Divergent Synthesis of α-(1,3,5-Triazinylthio)-ketones and Thiazolo[3,2- a][1,3,5]triazines from 1,3-Dicarbonyl compounds or Chalcones with 1,3,5-Triazine-2-thiols. J Org Chem 2023; 88:14210-14215. [PMID: 37703517 DOI: 10.1021/acs.joc.3c01497] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/15/2023]
Abstract
An efficient synthesis of α-(1,3,5-triazinylthio)-ketones from 1,3-dicarbonyl compounds with 1,3,5-triazine-2-thiols has been developed. The reaction proceeds through the C-C bond cleavage and C-S bond reconstruction of 1,3-dicarbonyl compounds, and β-keto esters, β-keto amides, and 1,3-diones were tolerated. In addition, the annulation of 1,3,5-triazine-2-thiols with chalcones has been achieved for the synthesis of thiazolo[3,2-a][1,3,5]triazines. The method occurred in moderate to good yields and tolerated chalcone with a broad functional group.
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Affiliation(s)
- Pengzhen Zhong
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou 310014, China
| | - Cheng Zhang
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou 310014, China
| | - Yue Li
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou 310014, China
| | - Chengwu Su
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou 310014, China
| | - Chen Zhang
- College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, China
| | - Dong-Mei Cui
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou 310014, China
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2
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Liu Y, Gao W, Yuan S, Ni M, Hao T, Zeng C, Xu X, Fu Y, Peng Y, Ding Q. One-pot synthesis of 11-sulfenyl dibenzodiazepines via tandem sulfenylation/cyclization of o-isocyanodiaryl amines and diaryl disulfides. Org Biomol Chem 2023; 21:4257-4263. [PMID: 37139575 DOI: 10.1039/d3ob00220a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
A one-pot sulfenylation/cyclization of o-isocyanodiaryl amines has been described for the preparation of 11-sulfenyl dibenzodiazepines. This AgI-catalyzed reaction covers an unexplored tandem process to give seven-membered N-heterocycles. This transformation shows a broad range of substrate scope, simple operation, and moderate to good yields under aerobic conditions. Diphenyl diselenide can also be produced in an acceptable yield.
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Affiliation(s)
- Yi Liu
- National Engineering Research Center for Carbohydrate Synthesis, Key Lab of Fluorine and Silicon for Energy Materials and Chemistry of Ministry of Education, Key Laboratory for Green Chemistry of Jiangxi Province, Jiangxi Normal University, Nanchang 330022, Jiangxi, China.
| | - Wei Gao
- Jiangxi Academy of Forestry, Nanchang 330013, Jiangxi, China.
| | - Sitian Yuan
- National Engineering Research Center for Carbohydrate Synthesis, Key Lab of Fluorine and Silicon for Energy Materials and Chemistry of Ministry of Education, Key Laboratory for Green Chemistry of Jiangxi Province, Jiangxi Normal University, Nanchang 330022, Jiangxi, China.
| | - Mengjia Ni
- National Engineering Research Center for Carbohydrate Synthesis, Key Lab of Fluorine and Silicon for Energy Materials and Chemistry of Ministry of Education, Key Laboratory for Green Chemistry of Jiangxi Province, Jiangxi Normal University, Nanchang 330022, Jiangxi, China.
| | - Tianxin Hao
- National Engineering Research Center for Carbohydrate Synthesis, Key Lab of Fluorine and Silicon for Energy Materials and Chemistry of Ministry of Education, Key Laboratory for Green Chemistry of Jiangxi Province, Jiangxi Normal University, Nanchang 330022, Jiangxi, China.
| | - Cuiying Zeng
- National Engineering Research Center for Carbohydrate Synthesis, Key Lab of Fluorine and Silicon for Energy Materials and Chemistry of Ministry of Education, Key Laboratory for Green Chemistry of Jiangxi Province, Jiangxi Normal University, Nanchang 330022, Jiangxi, China.
| | - Xinyi Xu
- National Engineering Research Center for Carbohydrate Synthesis, Key Lab of Fluorine and Silicon for Energy Materials and Chemistry of Ministry of Education, Key Laboratory for Green Chemistry of Jiangxi Province, Jiangxi Normal University, Nanchang 330022, Jiangxi, China.
| | - Yang Fu
- National Engineering Research Center for Carbohydrate Synthesis, Key Lab of Fluorine and Silicon for Energy Materials and Chemistry of Ministry of Education, Key Laboratory for Green Chemistry of Jiangxi Province, Jiangxi Normal University, Nanchang 330022, Jiangxi, China.
| | - Yiyuan Peng
- National Engineering Research Center for Carbohydrate Synthesis, Key Lab of Fluorine and Silicon for Energy Materials and Chemistry of Ministry of Education, Key Laboratory for Green Chemistry of Jiangxi Province, Jiangxi Normal University, Nanchang 330022, Jiangxi, China.
| | - Qiuping Ding
- National Engineering Research Center for Carbohydrate Synthesis, Key Lab of Fluorine and Silicon for Energy Materials and Chemistry of Ministry of Education, Key Laboratory for Green Chemistry of Jiangxi Province, Jiangxi Normal University, Nanchang 330022, Jiangxi, China.
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3
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Duan B, Li H, Chen Y, Xu C, Yin G. Access to α,α-dithioketones through direct di-sulfenylation of methyl ketones mediated by KOH-DMSO system. Tetrahedron Lett 2022. [DOI: 10.1016/j.tetlet.2022.153697] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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4
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Li W, Zheng Y, Qu E, Bai J, Deng Q. β
‐Keto Amides: A Jack‐of‐All‐Trades Building Block in Organic Chemistry. European J Org Chem 2021. [DOI: 10.1002/ejoc.202100692] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Wanfang Li
- School of Materials and Chemistry University of Shanghai for Science and Technology Shanghai 200093 P. R. China
| | - Yan Zheng
- School of Materials and Chemistry University of Shanghai for Science and Technology Shanghai 200093 P. R. China
| | - Erdong Qu
- School of Materials and Chemistry University of Shanghai for Science and Technology Shanghai 200093 P. R. China
| | - Jin Bai
- School of Materials and Chemistry University of Shanghai for Science and Technology Shanghai 200093 P. R. China
| | - Qinyue Deng
- School of Materials and Chemistry University of Shanghai for Science and Technology Shanghai 200093 P. R. China
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5
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Margalef J, Samec JSM. Assessing Methodologies to Synthesize α-Sulfenylated Carbonyl Compounds by Green Chemistry Metrics. CHEMSUSCHEM 2021; 14:808-823. [PMID: 33180999 PMCID: PMC7894555 DOI: 10.1002/cssc.202002409] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/13/2020] [Revised: 11/08/2020] [Indexed: 06/11/2023]
Abstract
α-Sulfenylated carbonyl compounds are important both as active pharmaceutical ingredients and as intermediates in organic synthesis. Owing to their relevance in synthetic organic chemistry, this Minireview focuses on assessing the most relevant synthetic procedures based on green chemistry metrics. The Minireview starts with the traditional routes and then focuses on more recently developed methodologies. These routes include sulfenylating reagents using organocatalysis, cross-dehydrogenative couplings using in situ halogenations to prevent reactive intermediates in high concentrations, oxidative couplings using terminal oxidants such as DDQ or TEMPO, and redox-neutral couplings using transition metal catalysis. These methodologies have been evaluated on the basis of atom economy, E factor, and the safety and toxicity of the transformations and the solvents used. Besides using green metrics to evaluate these novel methodologies, the synthetic utility is also assessed with regard to the availability of starting materials and the generality of the reactions. This Minireview aims to inspire researchers to apply green assessments to other methodologies and also for them to take measures to increase the greenness of their developed transformations.
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Affiliation(s)
- Jèssica Margalef
- Departament de Química Física i InorgànicaUniversitat Rovira i VirgiliC/ Marcel lí Domingo, 143007TarragonaSpain
| | - Joseph S. M. Samec
- Department of Organic ChemistryStockholm UniversitySvante Arrhenius väg 16 C106 91StockholmSweden
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6
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Kazmierczak JC, Cargnelutti R, Barcellos T, Silveira CC, Schumacher RF. Selective synthesis of α-organylthio esters and α-organylthio ketones from β-keto esters and sodium S-organyl sulfurothioates under basic conditions. Beilstein J Org Chem 2021; 17:234-244. [PMID: 33564334 PMCID: PMC7849251 DOI: 10.3762/bjoc.17.24] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2020] [Accepted: 01/07/2021] [Indexed: 11/23/2022] Open
Abstract
We described herein a selective method to prepare α-organylthio esters and α-organylthio ketones by the reaction of β-keto esters with sodium S-benzyl sulfurothioate or sodium S-alkyl sulfurothioate (Bunte salts) under basic conditions in toluene as the solvent at 100 °C. When 4 equivalents of a base were used, a series of differently substituted α-thio esters were obtained with up to 90% yield. On the other hand, employing 2 equivalents of a base, α-thio ketones were achieved after 18 h under air. Furthermore, after a shorter reaction time, the isolation of keto-enol tautomers was possible, revealing them as significant intermediates for the mechanism elucidation.
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Affiliation(s)
- Jean C Kazmierczak
- Departamento de Química, CCNE, Universidade Federal de Santa Maria–UFSM, Santa Maria, 97105-900, RS, Brazil
| | - Roberta Cargnelutti
- Departamento de Química, CCNE, Universidade Federal de Santa Maria–UFSM, Santa Maria, 97105-900, RS, Brazil
| | - Thiago Barcellos
- Instituto de Biotecnologia Universidade de Caxias do Sul–UCS, Caxias do Sul, RS, Brazil
| | - Claudio C Silveira
- Departamento de Química, CCNE, Universidade Federal de Santa Maria–UFSM, Santa Maria, 97105-900, RS, Brazil
| | - Ricardo F Schumacher
- Departamento de Química, CCNE, Universidade Federal de Santa Maria–UFSM, Santa Maria, 97105-900, RS, Brazil
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7
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Zhao X, Ou Y, Liu Y, Maruoka K, Chen Q. Recent Progress in the Construction of S—S, P—S and C—S Bonds Involving O2-Initiated Sulfur-Centered Radicals. CHINESE J ORG CHEM 2021. [DOI: 10.6023/cjoc202105015] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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8
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Sun C, Yu Y, Zhang X, Liu Y, Sun C, Kai G, Shi L, Li H. Transition-metal-free decarbonylative alkylation towards N-aryl α-hydroxy amides via triple C–C bond cleavages and their selective deuteration. Org Chem Front 2021. [DOI: 10.1039/d1qo00530h] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
A transition-metal-free decarbonylative alkylation reaction for the synthesis of N-aryl α-hydroxy amides via precise cleavages and reorganizations of three C–C σ bonds has been developed.
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Affiliation(s)
- Chengyu Sun
- State Key Laboratory of Bioreactor Engineering, Shanghai Key Laboratory of New Drug Design, and School of Pharmacy, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Yang Yu
- State Key Laboratory of Bioreactor Engineering, Shanghai Key Laboratory of New Drug Design, and School of Pharmacy, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Xiao Zhang
- State Key Laboratory of Bioreactor Engineering, Shanghai Key Laboratory of New Drug Design, and School of Pharmacy, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Yonghai Liu
- State Key Laboratory of Bioreactor Engineering, Shanghai Key Laboratory of New Drug Design, and School of Pharmacy, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Chengtao Sun
- Laboratory of Medicinal Plant Biotechnology, College of pharmacy, Zhejiang Chinese Medical University, Hangzhou, Zhejiang, 310053, China
| | - Guoyin Kai
- Laboratory of Medicinal Plant Biotechnology, College of pharmacy, Zhejiang Chinese Medical University, Hangzhou, Zhejiang, 310053, China
| | - Lei Shi
- Huabao Flavours & Fragrances Co., Ltd., 1299 Yecheng Road, Shanghai 201822, China
| | - Hao Li
- State Key Laboratory of Bioreactor Engineering, Shanghai Key Laboratory of New Drug Design, and School of Pharmacy, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
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9
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Zhang H, Wang H, Jiang Y, Cao F, Gao W, Zhu L, Yang Y, Wang X, Wang Y, Chen J, Feng Y, Deng X, Lu Y, Hu X, Li X, Zhang J, Shi T, Wang Z. Recent Advances in Iodine-Promoted C-S/N-S Bonds Formation. Chemistry 2020; 26:17289-17317. [PMID: 32470225 DOI: 10.1002/chem.202001414] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2020] [Revised: 05/27/2020] [Indexed: 12/19/2022]
Abstract
Sulfur-containing scaffold, as a ubiquitous structural motif, has been frequently used in natural products, bioactive chemicals and pharmaceuticals, particularly C-S/N-S bonds are indispensable in many biological important compounds and pharmaceuticals. Development of mild and general methods for C-S/N-S bonds formation has great significance in modern research. Iodine and its derivatives have been recognized as inexpensive, environmentally benign and easy-handled catalysts or reagents to promote the construction of C-S/N-S bonds under mild reaction conditions, with good regioselectivities and broad substrate scope. Especially based on this, several new strategies, such as oxidation relay strategy, have been greatly developed and accelerated the advancement of this field. This review focuses on recent advances in iodine and its derivatives promoted hybridized C-S/N-S bonds formation. The features and mechanisms of corresponding reactions are summarized and the results of some cases are compared with those of previous reports. In addition, the future of this domain is discussed.
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Affiliation(s)
- Honghua Zhang
- School of Pharmacy, Lanzhou University, 199 West Donggang Road, Lanzhou, 730000, P. R. China
| | - Huihong Wang
- State Key Laboratory of Applied Organic Chemistry, College of, Chemistry and Chemical Engineering, Lanzhou University, 222 South Tianshui Road, Lanzhou, 730000, P. R. China
| | - Yi Jiang
- School of Pharmacy, Lanzhou University, 199 West Donggang Road, Lanzhou, 730000, P. R. China
| | - Fei Cao
- State Key Laboratory of Applied Organic Chemistry, College of, Chemistry and Chemical Engineering, Lanzhou University, 222 South Tianshui Road, Lanzhou, 730000, P. R. China
| | - Weiwei Gao
- State Key Laboratory of Applied Organic Chemistry, College of, Chemistry and Chemical Engineering, Lanzhou University, 222 South Tianshui Road, Lanzhou, 730000, P. R. China
| | - Longqing Zhu
- School of Pharmacy, Lanzhou University, 199 West Donggang Road, Lanzhou, 730000, P. R. China
| | - Yuhang Yang
- School of Pharmacy, Lanzhou University, 199 West Donggang Road, Lanzhou, 730000, P. R. China
| | - Xiaodong Wang
- School of Pharmacy, Lanzhou University, 199 West Donggang Road, Lanzhou, 730000, P. R. China
| | - Yongqiang Wang
- School of Pharmacy, Lanzhou University, 199 West Donggang Road, Lanzhou, 730000, P. R. China
| | - Jinhong Chen
- School of Pharmacy, Lanzhou University, 199 West Donggang Road, Lanzhou, 730000, P. R. China
| | - Yiyue Feng
- School of Pharmacy, Lanzhou University, 199 West Donggang Road, Lanzhou, 730000, P. R. China
| | - Xuemei Deng
- School of Pharmacy, Lanzhou University, 199 West Donggang Road, Lanzhou, 730000, P. R. China
| | - Yingmei Lu
- School of Pharmacy, Lanzhou University, 199 West Donggang Road, Lanzhou, 730000, P. R. China
| | - Xiaoling Hu
- School of Pharmacy, Lanzhou University, 199 West Donggang Road, Lanzhou, 730000, P. R. China
| | - Xiangxiang Li
- School of Pharmacy, Lanzhou University, 199 West Donggang Road, Lanzhou, 730000, P. R. China
| | - Juan Zhang
- School of Pharmacy, Lanzhou University, 199 West Donggang Road, Lanzhou, 730000, P. R. China
| | - Tao Shi
- School of Pharmacy, Lanzhou University, 199 West Donggang Road, Lanzhou, 730000, P. R. China
| | - Zhen Wang
- School of Pharmacy, Lanzhou University, 199 West Donggang Road, Lanzhou, 730000, P. R. China.,State Key Laboratory of Applied Organic Chemistry, College of, Chemistry and Chemical Engineering, Lanzhou University, 222 South Tianshui Road, Lanzhou, 730000, P. R. China
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10
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Leypold M, D’Angelo KA, Movassaghi M. Chemoselective α-Sulfidation of Amides Using Sulfoxide Reagents. Org Lett 2020; 22:8802-8807. [PMID: 33048547 PMCID: PMC7680396 DOI: 10.1021/acs.orglett.0c03160] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2020] [Indexed: 11/29/2022]
Abstract
The direct α-sulfidation of tertiary amides using sulfoxide reagents under electrophilic amide activation conditions is described. Employing convenient and readily available reagents, selective functionalization takes place to generate isolable sulfonium ions en route to α-sulfide amides. Mechanistic studies identified activated sulfoxides as promoters of the desired transformation and enabled the extension of the methodology from benzylic to aliphatic amide substrates.
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Affiliation(s)
| | | | - Mohammad Movassaghi
- Department of Chemistry, Massachusetts
Institute of Technology, Cambridge, Massachusetts 02139, United States
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11
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Zhang J, Liu H, Fan T, Chen Y, Xu Y. Synthesis of Indolo[2,1‐a]isoquinolin‐6(5H)‐Ones Derivatives
via
Fe(OTf)
3
‐Promoted Tandem Selenylation/Cyclization of 2‐Arylindoles. Adv Synth Catal 2020. [DOI: 10.1002/adsc.202000983] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Affiliation(s)
- Jia‐Rong Zhang
- Pharmacy School of Guilin Medical University Guilin 541004 People's Republic of China
| | - Hao‐Yang Liu
- Pharmacy School of Guilin Medical University Guilin 541004 People's Republic of China
| | - Tao Fan
- Pharmacy School of Guilin Medical University Guilin 541004 People's Republic of China
| | - Yan‐Yan Chen
- Pharmacy School of Guilin Medical University Guilin 541004 People's Republic of China
| | - Yan‐Li Xu
- Pharmacy School of Guilin Medical University Guilin 541004 People's Republic of China
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12
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13
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NH4I-catalyzed C–S bond formation via an oxidation relay strategy: Efficient access to dithioether decorated indolizines. Tetrahedron Lett 2020. [DOI: 10.1016/j.tetlet.2020.152368] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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14
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Chen J, Tian Y, Zhang YX, Xu FG. Chemoselective Probes Serving as Promising Derivatization Tools in Targeted Metabolomics Research. JOURNAL OF ANALYSIS AND TESTING 2020. [DOI: 10.1007/s41664-020-00125-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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15
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Jiang Y, Feng YY, Zou JX, Lei S, Hu XL, Yin GF, Tan W, Wang Z. Brønsted Base-Switched Selective Mono- and Dithiolation of Benzamides via Copper Catalysis. J Org Chem 2019; 84:10490-10500. [PMID: 31333031 DOI: 10.1021/acs.joc.9b01237] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Yi Jiang
- School of Pharmacy, Lanzhou University, West Donggang Road No. 199, Lanzhou 730000, China
| | - Yi-yue Feng
- School of Pharmacy, Lanzhou University, West Donggang Road No. 199, Lanzhou 730000, China
| | - Jiao-xia Zou
- School of Pharmacy, Lanzhou University, West Donggang Road No. 199, Lanzhou 730000, China
| | - Shuai Lei
- School of Pharmacy, Lanzhou University, West Donggang Road No. 199, Lanzhou 730000, China
| | - Xiao-ling Hu
- School of Pharmacy, Lanzhou University, West Donggang Road No. 199, Lanzhou 730000, China
| | - Gao-feng Yin
- School of Pharmacy, Lanzhou University, West Donggang Road No. 199, Lanzhou 730000, China
| | - Wen Tan
- School of Pharmacy, Lanzhou University, West Donggang Road No. 199, Lanzhou 730000, China
| | - Zhen Wang
- School of Pharmacy, Lanzhou University, West Donggang Road No. 199, Lanzhou 730000, China
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, China
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16
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Zou JX, Jiang Y, Lei S, Yin GF, Hu XL, Zhao QY, Wang Z. Synthesis of α-arylthioacetones using TEMPO as the C 3 synthon via a reaction cascade of sequential oxidation, skeletal rearrangement and C-S bond formation. Org Biomol Chem 2019; 17:2341-2345. [PMID: 30758028 DOI: 10.1039/c9ob00018f] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Here, we present an unprecedented pathway to α-sulfenylated carbonyl compounds from commercially available thiols and universally employed TEMPO and its analogues, which act as C3 synthons through skeletal rearrangement under simple and metal-free conditions. Mechanism studies suggest that this reaction involves a consecutive radical oxidation and cation coupling process. TEMPO analogues and thiols serve as oxidants and reductive reagents, respectively, along the radical process, while in the coupling process, the former ones afford C3 synthons to couple with related sulfur sources.
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Affiliation(s)
- Jiao-Xia Zou
- School of Pharmacy, Lanzhou University, West Donggang Road. No. 199, Lanzhou 730000, China.
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17
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Jiang Y, Zou JX, Huang LT, Peng X, Deng JD, Zhu LQ, Yang YH, Feng YY, Zhang XY, Wang Z. KI-catalyzed C-S bond formation via an oxidation relay strategy: efficient access to various α-thio-β-dicarbonyl compounds. Org Biomol Chem 2019; 16:1641-1645. [PMID: 29461552 DOI: 10.1039/c8ob00080h] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
An efficient and practical methodology to obtain α-thio-β-dicarbonyl compounds was presented under alkaline conditions via potassium iodide (KI) catalysis; various symmetrical/unsymmetrical 1,3-dicarbonyl compounds were obtained under an aerobic atmosphere in moderate to excellent yields, with good functional group tolerance. Notably, a widely used anti-inflammatory drug butazodine could be modified with our protocol, even on a gram scale.
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Affiliation(s)
- Yi Jiang
- School of Pharmacy, Lanzhou University, West Donggang Road. No. 199, Lanzhou 730000, China.
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18
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Hu B, Zhang Q, Zhao S, Wang Y, Xu L, Yan S, Yu F. Direct Oxidative Disulfenylation/Cyclization of 2′‐Hydroxyacetophenones with Thiophenols for the Synthesis of 2,2‐Dithio‐Benzofuran‐3(2
H
)‐Ones. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201801138] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Biao Hu
- Faculty of Life Science and TechnologyKunming University of Science and Technology Kunming 650500 People's Republic of China
| | - Qiaohe Zhang
- Faculty of Life Science and TechnologyKunming University of Science and Technology Kunming 650500 People's Republic of China
| | - Siyun Zhao
- Faculty of Life Science and TechnologyKunming University of Science and Technology Kunming 650500 People's Republic of China
| | - Yanqin Wang
- Faculty of Life Science and TechnologyKunming University of Science and Technology Kunming 650500 People's Republic of China
| | - Li Xu
- Faculty of Life Science and TechnologyKunming University of Science and Technology Kunming 650500 People's Republic of China
| | - Shengjiao Yan
- School of Chemical Science and TechnologyYunnan University Kunming 650091 People's Republic of China
| | - Fuchao Yu
- Faculty of Life Science and TechnologyKunming University of Science and Technology Kunming 650500 People's Republic of China
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19
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Zhang HH, Wang YQ, Huang LT, Zhu LQ, Feng YY, Lu YM, Zhao QY, Wang XQ, Wang Z. NaI-mediated divergent synthesis of isatins and isoindigoes: a new protocol enabled by an oxidation relay strategy. Chem Commun (Camb) 2018; 54:8265-8268. [PMID: 29989115 DOI: 10.1039/c8cc04471f] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
A new approach for the synthesis of isatins and isoindigoes by an inexpensive and environmentally friendly NaI-mediated transformation is disclosed. The selectivity could be switched by simply varying the solvent, and isatins (using THF) and isoindigoes (using DMSO) could be obtained in moderate to excellent yields.
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Affiliation(s)
- Hong-Hua Zhang
- School of Pharmacy, Lanzhou University, West Donggang Road. No. 199, Lanzhou 730000, China.
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20
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Zou JX, Wang YQ, Huang LT, Jiang Y, Chen JH, Zhu LQ, Yang YH, Feng YY, Peng X, Wang Z. One pot preparation of α-dithioacetal/α-diselenoacetal amides via a dual-C–S/C–Se bond formation and C–C bond cleavage cascade of 3-oxo-butanamides. Org Chem Front 2018. [DOI: 10.1039/c8qo00435h] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new and practical approach to α-dithioacetal/α-diselenoacetal amides has been developed.
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Affiliation(s)
- Jiao-xia Zou
- School of Pharmacy
- Lanzhou University
- Lanzhou 730000
- China
| | | | | | - Yi Jiang
- School of Pharmacy
- Lanzhou University
- Lanzhou 730000
- China
| | - Jin-hong Chen
- School of Pharmacy
- Lanzhou University
- Lanzhou 730000
- China
| | - Long-qing Zhu
- School of Pharmacy
- Lanzhou University
- Lanzhou 730000
- China
| | - Yu-hang Yang
- School of Pharmacy
- Lanzhou University
- Lanzhou 730000
- China
| | - Yi-yue Feng
- School of Pharmacy
- Lanzhou University
- Lanzhou 730000
- China
| | - Xue Peng
- School of Pharmacy
- Lanzhou University
- Lanzhou 730000
- China
| | - Zhen Wang
- School of Pharmacy
- Lanzhou University
- Lanzhou 730000
- China
- State Key Laboratory of Applied Organic Chemistry
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21
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Bhunia SK, Das P, Jana R. Atom-economical selenation of electron-rich arenes and phosphonates with molecular oxygen at room temperature. Org Biomol Chem 2018; 16:9243-9250. [DOI: 10.1039/c8ob02792g] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
An environmentally benign selenation of electron-rich arenes and phosphonates is developed adopting a novel recycle–reuse–reduce strategy for selenol by oxygen.
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Affiliation(s)
- Samir Kumar Bhunia
- Organic and Medicinal Chemistry Division
- CSIR-Indian Institute of Chemical Biology
- Kolkata-700032
- India
- Academy of Scientific and Innovative Research (AcSIR)
| | - Pritha Das
- Organic and Medicinal Chemistry Division
- CSIR-Indian Institute of Chemical Biology
- Kolkata-700032
- India
| | - Ranjan Jana
- Organic and Medicinal Chemistry Division
- CSIR-Indian Institute of Chemical Biology
- Kolkata-700032
- India
- Academy of Scientific and Innovative Research (AcSIR)
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