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Feng J, Wang Y, Gao L, Yu Y, Baell JB, Huang F. Electrochemical Synthesis of Polysubstituted Sulfonated Pyrazoles via Cascade Intermolecular Condensation, Radical-Radical Cross Coupling Sulfonylation, and Pyrazole Annulation. J Org Chem 2022; 87:13138-13153. [PMID: 36166815 DOI: 10.1021/acs.joc.2c01609] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Electrochemical synthesis of polysubstituted sulfonated pyrazoles from enaminones and sulfonyl hydrazides was established under metal-free, exogenous-oxidant-free, and mild conditions. By judicious choice of different electrochemical reaction conditions, NH2-functionalized enaminones or N,N-disubstituted enaminones can react with aryl/alkyl sulfonyl hydrazides to afford tetra- or trisubstituted sulfonated pyrazoles in moderate to good yields, respectively. The gram-scale electrochemical transformation demonstrated the efficiency and practicability of this synthetic strategy. In addition, the sulfonated NH-pyrazole can be obtained via the dissociation of the N-tosyl group. Mechanistic studies reveal that the electrochemical cascade reaction synthesis of polysubstituted sulfonated pyrazoles proceeded via the sequence of intermolecular condensation, radical-radical cross coupling sulfonylation, and pyrazole annulation.
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Affiliation(s)
- Jiajun Feng
- School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing 211816, PR China
| | - Yuzhi Wang
- School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing 211816, PR China
| | - Luoyu Gao
- School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing 211816, PR China
| | - Yang Yu
- School of Environmental Science and Engineering, Nanjing Tech University, Nanjing 211816, PR China
| | - Jonathan B Baell
- School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing 211816, PR China.,Medicinal Chemistry Theme, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, Victoria 3052, Australia
| | - Fei Huang
- School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing 211816, PR China.,School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Nanjing 210023, PR China
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2
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Mal S, Jana M. Sulfonyl hydrazide induced sulfenylation of imidazoheteroarenes: A ‘catalyst and solvent free’ protocol. SYNTHETIC COMMUN 2022. [DOI: 10.1080/00397911.2022.2069506] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Sourav Mal
- Department of Chemistry, University of Kalyani, Nadia, India
| | - Manoranjan Jana
- Department of Chemistry, University of Kalyani, Nadia, India
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3
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Yang D, Yan Q, Zhu E, Lv J, He WM. Carbon–sulfur bond formation via photochemical strategies: An efficient method for the synthesis of sulfur-containing compounds. CHINESE CHEM LETT 2022. [DOI: 10.1016/j.cclet.2021.09.068] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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4
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Sun B, Tian H, Ni Z, Huang P, Ding H, Li B, Jin C, Wu C, Shen RP. Photocatalyst-, metal- and additive-free, regioselective radical cascade sulfonylation/cyclization of benzimidazoles derivatives with sulfonyl chlorides induced by visible light. Org Chem Front 2022. [DOI: 10.1039/d2qo00518b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Herein, an environmental and practical protocol for the visible-light-triggered regioselective radical cascade sulfonylation/cyclization of unactivated alkenes towards synthesis of polycyclic benzimidazoles containing sulfone group has been developed. Notably, the control...
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Yang DY, Liu L, Gu JY, He YH, Guan Z. Photoredox Catalyzed Radical Cascade Aroylation (Sulfonylation)/Cyclization Enables Access to Fused Indolo-pyridones. J Org Chem 2021; 86:18042-18055. [PMID: 34871003 DOI: 10.1021/acs.joc.1c02335] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
A visible-light-initiated radical cascade reaction toward the synthesis of structurally diverse fused Indolo-pyridones is described. The reaction involves the addition of aroyl or sulfonyl radicals to N-alkyl-acryloyl-1H-indole-3-carboxamides, cyclization, and oxidative aromatization. This telescoped method circumvents lengthy prefunctionalization steps of radical precursors, which is further underpinned by the superior compatibility with a series of C-centered radicals, allowing the rapid and facile construction of numerous valuable architectures.
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Affiliation(s)
- De-Yong Yang
- Key Laboratory of Applied Chemistry of Chongqing Municipality, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
| | - Liang Liu
- Key Laboratory of Applied Chemistry of Chongqing Municipality, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
| | - Jia-Yi Gu
- Key Laboratory of Applied Chemistry of Chongqing Municipality, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
| | - Yan-Hong He
- Key Laboratory of Applied Chemistry of Chongqing Municipality, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
| | - Zhi Guan
- Key Laboratory of Applied Chemistry of Chongqing Municipality, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
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Sun B, Ding H, Tian H, Huang P, Jin C, Wu C, Shen R. Photo‐Triggered Self‐Induced Homolytic Dechlorinative Sulfonylation/Cyclization of Unactivated Alkenes: Synthesis of Quinazolinones Containing a Sulfonyl Group. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202101141] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Bin Sun
- Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals Zhejiang University of Technology Hangzhou 310014 People's Republic of China
| | - Hao Ding
- College of Pharmaceutical Sciences Zhejiang University of Technology Hangzhou 310014 People's Republic of China
| | - Hai‐Xia Tian
- College of Pharmaceutical Sciences Zhejiang University of Technology Hangzhou 310014 People's Republic of China
| | - Pan‐Yi Huang
- College of Pharmaceutical Sciences Zhejiang University of Technology Hangzhou 310014 People's Republic of China
| | - Can Jin
- Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals Zhejiang University of Technology Hangzhou 310014 People's Republic of China
- College of Pharmaceutical Sciences Zhejiang University of Technology Hangzhou 310014 People's Republic of China
| | - Chun‐Lei Wu
- Zhejiang Engineering Research Center of Fat-soluble Vitamin Shaoxing University Shaoxing 312000 People's Republic of China
| | - Run‐Pu Shen
- Zhejiang Engineering Research Center of Fat-soluble Vitamin Shaoxing University Shaoxing 312000 People's Republic of China
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7
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Persulfate promoted tandem radical cyclization of ortho-cyanoarylacrylamides with oxamic acids for construction of carbamoyl quinoline-2,4-diones under metal-free conditions. CHINESE CHEM LETT 2021. [DOI: 10.1016/j.cclet.2021.04.019] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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8
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Yang WC, Chen CY, Li JF, Wang ZL. Radical denitrogenative transformations of polynitrogen heterocycles: Building C–N bonds and beyond. CHINESE JOURNAL OF CATALYSIS 2021. [DOI: 10.1016/s1872-2067(21)63814-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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9
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Hypervalent iodine mediated C-H amination of quinoxalinones with heteroaromatic amines under metal-free conditions. CHINESE CHEM LETT 2021. [DOI: 10.1016/j.cclet.2021.02.018] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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11
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Geng F, Wang S, Song K, Hao W, Jiang B. Visible-Light-Driven Photocatalytic Kharasch-Type Addition of 1,6-Enynes. CHINESE J ORG CHEM 2021. [DOI: 10.6023/cjoc202106014] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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12
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Li GH, Han QQ, Sun YY, Chen DM, Wang ZL, Xu XM, Yu XY. Visible-light induced cascade radical cyclization of sulfinic acids and o-(allyloxy)arylaldehydes towards functionalized chroman-4-ones. CHINESE CHEM LETT 2020. [DOI: 10.1016/j.cclet.2020.03.007] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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13
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Dong D, Han Q, Yang S, Song J, Li N, Wang Z, Xu X. Recent Progress in Sulfonylation via Radical Reaction with Sodium Sulfinates, Sulfinic Acids, Sulfonyl Chlorides or Sulfonyl Hydrazides. ChemistrySelect 2020. [DOI: 10.1002/slct.202003650] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Dao‐Qing Dong
- College of Chemistry and Pharmaceutical Sciences Qingdao Agricultural University Qingdao 266109 P.R. China
| | - Qing‐Qing Han
- College of Chemistry and Pharmaceutical Sciences Qingdao Agricultural University Qingdao 266109 P.R. China
| | - Shao‐Hui Yang
- College of Chemistry and Pharmaceutical Sciences Qingdao Agricultural University Qingdao 266109 P.R. China
| | - Jing‐Cheng Song
- College of Chemistry and Pharmaceutical Sciences Qingdao Agricultural University Qingdao 266109 P.R. China
| | - Na Li
- College of Chemistry and Pharmaceutical Sciences Qingdao Agricultural University Qingdao 266109 P.R. China
| | - Zu‐Li Wang
- College of Chemistry and Pharmaceutical Sciences Qingdao Agricultural University Qingdao 266109 P.R. China
| | - Xin‐Ming Xu
- College ofChemistry and Chemical Engineering Yantai University Yantai 264005 P.R. China
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Chen DM, Sun YY, Han QQ, Wang ZL. Hypervalent iodine mediated radical cyclization of o-(allyloxy)arylaldehydes and N-hydroxyphthalimide (NHPI) under metal-free conditions. Tetrahedron Lett 2020. [DOI: 10.1016/j.tetlet.2020.152482] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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15
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Li Y, Wan J, Liu Y. Annulation of Ketene Dithioacetals and Sulfonyl Hydrazines for the Synthesis of
N
‐Sulfonyl 5‐Alkylthiopyrazoles. ChemistrySelect 2020. [DOI: 10.1002/slct.202002480] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- Yi Li
- College of Chemistry and Chemical Engineering Jiangxi Normal University Nanchang 330022 P. R. China
| | - Jie‐Ping Wan
- College of Chemistry and Chemical Engineering Jiangxi Normal University Nanchang 330022 P. R. China
| | - Yunyun Liu
- College of Chemistry and Chemical Engineering Jiangxi Normal University Nanchang 330022 P. R. China
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16
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He WB, Gao LQ, Chen XJ, Wu ZL, Huang Y, Cao Z, Xu XH, He WM. Visible-light-initiated malic acid-promoted cascade coupling/cyclization of aromatic amines and KSCN to 2-aminobenzothiazoles without photocatalyst. CHINESE CHEM LETT 2020. [DOI: 10.1016/j.cclet.2020.02.011] [Citation(s) in RCA: 80] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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17
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Han QQ, Li GH, Sun YY, Chen DM, Wang ZL, Yu XY, Xu XM. Silver-catalyzed cascade radical cyclization of sodium sulfinates and o-(allyloxy)arylaldehydes towards functionalized chroman-4-ones. Tetrahedron Lett 2020. [DOI: 10.1016/j.tetlet.2020.151704] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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18
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Campestre C, Keglevich G, Kóti J, Scotti L, Gasbarri C, Angelini G. Microwave-assisted simple synthesis of 2-anilinopyrimidines by the reaction of 2-chloro-4,6-dimethylpyrimidine with aniline derivatives. RSC Adv 2020; 10:12249-12254. [PMID: 35497585 PMCID: PMC9050660 DOI: 10.1039/d0ra00833h] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2020] [Accepted: 03/18/2020] [Indexed: 02/05/2023] Open
Abstract
A series of 2-anilinopyrimidines including novel derivatives has been obtained from 2-chloro-4,6-dimethylpyrimidine by aromatic nucleophilic substitution with differently substituted anilines under microwave conditions. The substituents had a significant impact on the course and efficiency of the reaction. The results reported herein demonstrate the efficacy of microwaves in the synthesis of the title heterocyclic compounds as compared to the results obtained with conventional heating. The 2-anilinopyrimidines described are of potential bioactivity. A rapid, one pot, green approach by microwave heating in ethanol provides a new method to obtain active and new potentially active compounds in high yields.![]()
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Affiliation(s)
- Cristina Campestre
- Department of Pharmacy, University "G. d'Annunzio" of Chieti-Pescara via dei Vestini 66100 Chieti Italy +39-0871-3554785
| | - György Keglevich
- Department of Organic Chemistry and Technology, Budapest University of Technology and Economics 1521 Budapest Hungary
| | - János Kóti
- Spectroscopic Research Division, Gedeon Richter Plc. 1475 Budapest Hungary
| | - Luca Scotti
- Department of Medical, Oral and Biotechnological Sciences, University "G. d'Annunzio" of Chieti-Pescara via dei Vestini 66100 Chieti Italy
| | - Carla Gasbarri
- Department of Pharmacy, University "G. d'Annunzio" of Chieti-Pescara via dei Vestini 66100 Chieti Italy +39-0871-3554785
| | - Guido Angelini
- Department of Pharmacy, University "G. d'Annunzio" of Chieti-Pescara via dei Vestini 66100 Chieti Italy +39-0871-3554785
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19
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Dong DQ, Yang H, Shi JL, Si WJ, Wang ZL, Xu XM. Promising reagents for difluoroalkylation. Org Chem Front 2020. [DOI: 10.1039/d0qo00567c] [Citation(s) in RCA: 56] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This review describes recent advances in difluoroalkylation reactions using different substrates.
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Affiliation(s)
- Dao-Qing Dong
- College of Chemistry and Pharmaceutical Sciences
- Qingdao Agricultural University
- Qingdao 266109
- China
| | - Huan Yang
- College of Chemistry and Pharmaceutical Sciences
- Qingdao Agricultural University
- Qingdao 266109
- China
| | - Jun-Lian Shi
- College of Chemistry and Pharmaceutical Sciences
- Qingdao Agricultural University
- Qingdao 266109
- China
| | - Wen-Jia Si
- College of Chemistry and Pharmaceutical Sciences
- Qingdao Agricultural University
- Qingdao 266109
- China
| | - Zu-Li Wang
- College of Chemistry and Pharmaceutical Sciences
- Qingdao Agricultural University
- Qingdao 266109
- China
| | - Xin-Ming Xu
- College of Chemistry and Chemical Engineering
- Yantai University
- Yantai 264005
- China
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