1
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Badufle M, Robert F, Landais Y. Visible light mediated iron-catalyzed addition of oxamic acids to imines. RSC Adv 2024; 14:12528-12532. [PMID: 38638815 PMCID: PMC11024671 DOI: 10.1039/d4ra02258k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2024] [Accepted: 04/09/2024] [Indexed: 04/20/2024] Open
Abstract
Oxamic acids where shown to add to imines, providing a broad range of α-aminoacid amides in generally good yields. The process is efficient on pre-formed imines but may also be conducted using a 3-component strategy by simply mixing aldehydes, amines and oxamic acids in the presence of ferrocene, acting both as a photocatalyst under visible light and as a Lewis acid. The reaction proceeds through the addition onto the imine of a carbamoyl radical intermediate generated through a charge transfer from the carboxylate ligand to a Fe(iii) species (LMCT).
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Affiliation(s)
- Margaux Badufle
- Univ. Bordeaux, CNRS, Bordeaux INP, ISM, UMR 5255 F-33400 Talence France
| | - Frédéric Robert
- Univ. Bordeaux, CNRS, Bordeaux INP, ISM, UMR 5255 F-33400 Talence France
| | - Yannick Landais
- Univ. Bordeaux, CNRS, Bordeaux INP, ISM, UMR 5255 F-33400 Talence France
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2
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Chen D, Song ZJ, Yan S, Li G, Wang JY, Zhang Y. Photoinduced radical tandem annulation of 1,7-diynes: an approach for divergent assembly of functionalized quinolin-2(1H)-ones. Front Chem 2024; 12:1371978. [PMID: 38595704 PMCID: PMC11002210 DOI: 10.3389/fchem.2024.1371978] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2024] [Accepted: 02/26/2024] [Indexed: 04/11/2024] Open
Abstract
The first photocatalytic trichloromethyl radical-triggered annulative reactions of amide-linked 1,7-diynes with polyhalomethanes were established for the flexible assembly of functionalized quinolin-2(1H)-ones with generally acceptable yields. With the installation of the aryl group (R1) into the alkynyl moiety, C-center radical-initiated Kharasch-type addition/nucleophilic substitution/elimination cascade to produce quinolin-2(1H)-ones-incorporating gem-dihaloalkene, whereas three examples of polyhalogenated quinolin-2(1H)-ones were afforded when amide-linked 1,7-diynes bearing two terminal alkyne units were subjected to BrCX3 by exploiting dry acetonitrile as a solvent.
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Affiliation(s)
- Daixiang Chen
- School of Pharmacy, Changzhou University, Changzhou, Jiangsu, China
| | - Zhi-Jie Song
- School of Pharmacy, Changzhou University, Changzhou, Jiangsu, China
| | - Shenghu Yan
- School of Pharmacy, Changzhou University, Changzhou, Jiangsu, China
| | - Guigen Li
- Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, TX, United States
| | - Jia-Yin Wang
- School of Pharmacy, Changzhou University, Changzhou, Jiangsu, China
| | - Yue Zhang
- School of Pharmacy, Changzhou University, Changzhou, Jiangsu, China
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3
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Suman P, Tomar K, Nishad CS, Banerjee B. Metal-free synthesis of carbamoylated dihydroquinolinones via cascade radical annulation of cinnamamides with oxamic acids. Org Biomol Chem 2024; 22:1821-1833. [PMID: 38332745 DOI: 10.1039/d3ob01856c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/10/2024]
Abstract
We report a metal-free procedure for the sustainable synthesis of carbamoylated dihydroquinolinones via tandem addition-cyclization of carbamoyl radicals to cinnamamides. Readily accessible, non-toxic and inexpensive oxamic acids are used as carbamoyl radical precursors. This highly straightforward method provides a mild and environmentally friendly route showing good atom economy and excellent functional group tolerance to obtain diverse medicinally important carbamoylated dihydroquinolinones in one pot. The cascade cyclization is also modular and step-economical with a wide substrate scope and the products were obtained in good to excellent yields. Additionally, the tolerance to air and water, operational simplicity, low cost and scalability enhance the practical value of the proposed synthetic strategy. Preliminary mechanistic studies reveal that cheap and environment-friendly ammonium persulfate acts as a radical initiator in the cascade process and generates carbamoyl radicals from oxamic acids. The synthetic utility of this method is further demonstrated by late stage functionalization of drug molecules with good yields.
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Affiliation(s)
- Pallav Suman
- Department of Chemistry, Central University of Punjab, Bathinda-151401, India.
| | - Kirti Tomar
- Department of Chemistry, Central University of Punjab, Bathinda-151401, India.
| | | | - Biplab Banerjee
- Department of Chemistry, Central University of Punjab, Bathinda-151401, India.
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4
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Zhang MZ, Wang P, Liu HY, Wang D, Deng Y, Bai YH, Luo F, Wu WY, Chen T. Metal-Catalyst-Free One-Pot Aqueous Synthesis of trans-1,2-Diols from Electron-Deficient α,β-Unsaturated Amides via Epoxidation Using Oxone as a Dual Role Reagent. CHEMSUSCHEM 2023; 16:e202300583. [PMID: 37311715 DOI: 10.1002/cssc.202300583] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/24/2023] [Revised: 06/05/2023] [Accepted: 06/13/2023] [Indexed: 06/15/2023]
Abstract
In organic synthesis, incorporating two functional groups into the carbon-carbon double bond of α,β-unsaturated amides is challenging due to the electron-deficient nature of the olefin moiety. Although a few examples of dihydroxylation of α,β-unsaturated amides have been demonstrated, producing cis-1,2-diols using either highly toxic OsO4 or other specialized metal reagents in organic solvents, they are limited to several specific amides. We describe herein a general and one-pot direct synthesis of trans-1,2-diols from electron-deficient α,β-unsaturated amides through dihydroxylation using oxone as a dual-role reagent in water. This reaction does not require any metal catalyst and produces non-hazardous and nontoxic K2 SO4 as the sole byproduct. Moreover, epoxidation products could also be selectively formed by adjusting the reaction conditions. By the strategy, the intermediates of Mcl-1 inhibitor and antiallergic bioactive molecule can be synthesized in one pot. The gram-scale synthesis of trans-1,2-diol which is isolated and purified by recrystallization further shows the potential applications of this new reaction in organic synthesis.
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Affiliation(s)
- Ming-Zhong Zhang
- College of Chemistry and Chemical Engineering, Yangtze Normal University, Chongqing, 408100, China
| | - Ping Wang
- College of Chemistry and Chemical Engineering, Yangtze Normal University, Chongqing, 408100, China
| | - Hai-Yan Liu
- College of Chemistry and Chemical Engineering, Yangtze Normal University, Chongqing, 408100, China
| | - Dailian Wang
- College of Chemistry and Chemical Engineering, Ningxia Normal University, Guyuan, 756000, China
| | - Ya Deng
- College of Chemistry and Chemical Engineering, Yangtze Normal University, Chongqing, 408100, China
| | - Yu-Heng Bai
- College of Chemistry and Chemical Engineering, Yangtze Normal University, Chongqing, 408100, China
| | - Fei Luo
- College of Chemistry and Chemical Engineering, Yangtze Normal University, Chongqing, 408100, China
| | - Wen-Yu Wu
- College of Chemistry and Chemical Engineering, Yangtze Normal University, Chongqing, 408100, China
| | - Tieqiao Chen
- College of Chemical Engineering and Technology, Hainan University, Haikou, 410082, China
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5
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Zhang S, Yuan J, Huang G, Ma C, Yang J, Yang L, Xiao Y, Qu L. Visible-Light-Induced Intramolecular Tandem Cyclization of Unactivated Indoloalkynes for the Synthesis of Sulfonylated and Selenylated Indolo[1,2- a]quinolines. J Org Chem 2023; 88:11712-11727. [PMID: 37530760 DOI: 10.1021/acs.joc.3c00997] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/03/2023]
Abstract
A convenient and efficient visible-light-induced method has been developed for the construction of sulfonated and selenylated indolo[1,2-a]quinolines through sulfonyl or selenyl radical-initiated tandem cyclization of unactivated alkynes with sodium sulfinates or diaryl diselenides under mild conditions. This protocol, which simply utilizes visible light as the safe and eco-friendly energy source and an inexpensive and nontoxic organic dye as a photocatalyst without the aid of an external photocatalyst, provides various sulfonyl- and selenyl-containing indolo[1,2-a]quinolines in moderate to good yields.
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Affiliation(s)
- Shouren Zhang
- Henan Key Laboratory of Nanocomposites and Applications, Institute of Nanostructured Functional Materials, Huanghe Science and Technology College, Zhengzhou 450006, P. R. China
| | - Jinwei Yuan
- School of Chemistry & Chemical Engineering, Henan University of Technology, Zhengzhou 450001, P. R. China
| | - Guangchao Huang
- School of Chemistry & Chemical Engineering, Henan University of Technology, Zhengzhou 450001, P. R. China
| | - Chengjia Ma
- School of Chemistry & Chemical Engineering, Henan University of Technology, Zhengzhou 450001, P. R. China
| | - Jingjing Yang
- School of Chemistry & Chemical Engineering, Henan University of Technology, Zhengzhou 450001, P. R. China
| | - Liangru Yang
- School of Chemistry & Chemical Engineering, Henan University of Technology, Zhengzhou 450001, P. R. China
| | - Yongmei Xiao
- School of Chemistry & Chemical Engineering, Henan University of Technology, Zhengzhou 450001, P. R. China
| | - Lingbo Qu
- College of Chemistry, Zhengzhou University, Zhengzhou 450001, P. R. China
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6
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Nishad CS, Suman P, Saha H, Banerjee B. Visible-Light-Induced Metal- and Photocatalyst-Free Radical Cascade Cyclization of Cinnamamides for Synthesis of Functionalized Dihydroquinolinones. J Org Chem 2023. [PMID: 37463356 DOI: 10.1021/acs.joc.3c00987] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/20/2023]
Abstract
Visible-light-promoted metal- and photocatalyst-free radical cascade cyclization of cinnamamides with α-oxocarboxylic acids is described for sustainable synthesis of diverse pharmaceutically important dihydroquinolinone scaffolds in one pot under mild conditions. The decarboxylative cascade cyclization proceeded efficiently at room temperature without the need for expensive photocatalysts such as Ir or Ru complexes, which indicates the practicability and environmentally benign nature of this protocol. Preliminary mechanistic studies reveal that the blue LED irradiation efficiently cleaves the I-O bond of the hypervalent iodine reagent PhI(O2CCOAr)2 formed through ligand exchange between iodobenzene diacetate and arylglyoxylic acid to initiate the cascade reaction. The synthetic value of this operationally simple and energy-efficient method is further demonstrated by late-stage functionalization of drug molecules in excellent yields.
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Affiliation(s)
| | - Pallav Suman
- Department of Chemistry, Central University of Punjab, Bathinda 151401, India
| | - Himadri Saha
- Department of Chemistry, Central University of Punjab, Bathinda 151401, India
| | - Biplab Banerjee
- Department of Chemistry, Central University of Punjab, Bathinda 151401, India
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7
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Ogbu IM, Kurtay G, Badufle M, Robert F, Lopez CS, Landais Y. PIDA-mediated Oxidative Decarboxylation of Oxamic Acids. The Role of Radical Acidity Enhancement. Chemistry 2023; 29:e202202963. [PMID: 36583591 DOI: 10.1002/chem.202202963] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2022] [Revised: 12/28/2022] [Accepted: 12/30/2022] [Indexed: 12/31/2022]
Abstract
The PIDA-mediated oxidative decarboxylation of oxamic acids in the presence of alcohols is shown to afford the corresponding urethanes under thermal conditions. Computational and experimental mechanistic exploration allows to rationalize the different reactivity of PIDA as compared to related cyclic BI-OAc and highlights the importance of the enhanced acidity of the proton in the carbamoyl radical intermediate.
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Affiliation(s)
- Ikechukwu Martin Ogbu
- Institute of Molecular Sciences (ISM), Univ. Bordeaux, CNRS, UMR-5255, 351 Cours de la Libération, 33400, Talence, France
| | - Gülbin Kurtay
- Institute of Molecular Sciences (ISM), Univ. Bordeaux, CNRS, UMR-5255, 351 Cours de la Libération, 33400, Talence, France.,University of Ankara, Department of Chemistry, Faculty of Science, 06800, Ankara, Turkey
| | - Margaux Badufle
- Institute of Molecular Sciences (ISM), Univ. Bordeaux, CNRS, UMR-5255, 351 Cours de la Libération, 33400, Talence, France
| | - Frédéric Robert
- Institute of Molecular Sciences (ISM), Univ. Bordeaux, CNRS, UMR-5255, 351 Cours de la Libération, 33400, Talence, France
| | - Carlos Silva Lopez
- University of Vigo, Campus Universitario As lagoas, Marcosende, 36310, Vigo, Spain
| | - Yannick Landais
- Institute of Molecular Sciences (ISM), Univ. Bordeaux, CNRS, UMR-5255, 351 Cours de la Libération, 33400, Talence, France
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8
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Kulkarni PA, Kahandal SS, Mirgane NA, Satpati AK, Shendage SS. Highly efficient magnetically separable Zn-Ag@L-arginine Fe3O4catalystfor synthesis of 2-aryl-substitutedbenzimidazoles and multicomponent synthesis of pyrimidines. RESULTS IN CHEMISTRY 2022. [DOI: 10.1016/j.rechem.2022.100655] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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9
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Xie LY, Peng S, Yang LH, Liu XW. Metal-Free Synthesis of Carbamoylated Chroman-4-Ones via Cascade Radical Annulation of 2-(Allyloxy)arylaldehydes with Oxamic Acids. Molecules 2022; 27:molecules27207049. [PMID: 36296640 PMCID: PMC9609457 DOI: 10.3390/molecules27207049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2022] [Revised: 10/12/2022] [Accepted: 10/12/2022] [Indexed: 11/17/2022] Open
Abstract
An efficient and straightforward approach for the synthesis of carbamoylated chroman-4-ones has been well-developed. The reaction is triggered through the generation of carbamoyl radicals from oxamic acids under metal-free conditions, which subsequently undergoes decarboxylative radical cascade cyclization on 2-(allyloxy)arylaldehydes to afford various amide-containing chroman-4-one scaffolds with high functional group tolerance and a broad substrate scope.
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10
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Xu X, Guo L, Liu Y, He X, Guo Y, Zeng Y. Silver‐Catalyzed Regioselective Alkylation of Chromones with Carboxylic Acids. ChemistrySelect 2022. [DOI: 10.1002/slct.202202650] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Xiao‐Feng Xu
- School of Pharmaceutical Science Hunan Provincial Key Laboratory of Tumor Microenvironment Responsive Drug Research Hengyang Medical School University of South China Hengyang Hunan 421001 China
| | - Lu Guo
- Department of Sports Medicine Affiliated Nanhua Hospital Hengyang Medical School University of South China Hengyang Hunan 421001 China
| | - Yuan‐Xin Liu
- School of Pharmaceutical Science Hunan Provincial Key Laboratory of Tumor Microenvironment Responsive Drug Research Hengyang Medical School University of South China Hengyang Hunan 421001 China
| | - Xing‐Zi He
- School of Pharmaceutical Science Hunan Provincial Key Laboratory of Tumor Microenvironment Responsive Drug Research Hengyang Medical School University of South China Hengyang Hunan 421001 China
| | - Yu Guo
- School of Pharmaceutical Science Hunan Provincial Key Laboratory of Tumor Microenvironment Responsive Drug Research Hengyang Medical School University of South China Hengyang Hunan 421001 China
| | - Yao‐Fu Zeng
- School of Pharmaceutical Science Hunan Provincial Key Laboratory of Tumor Microenvironment Responsive Drug Research Hengyang Medical School University of South China Hengyang Hunan 421001 China
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11
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Matsuo BT, Oliveira PHR, Pissinati EF, Vega KB, de Jesus IS, Correia JTM, Paixao M. Photoinduced carbamoylation reactions: unlocking new reactivities towards amide synthesis. Chem Commun (Camb) 2022; 58:8322-8339. [PMID: 35843219 DOI: 10.1039/d2cc02585j] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The preparation of amide-containing compounds is among the most interesting and challenging topics for the synthetic community. Such relevance is given by their reactive aspects explored in the context of organic synthesis and by the direct application of these compounds as pharmaceuticals and useful materials, and their key roles in biological structures. A simple and straightforward strategy for the amide moiety installation is the use of carbamoyl radicals - this nucleophilic one-electron intermediate is prone to undergo a series of transformations, providing a range of structurally relevant derivatives. In this review, we summarize the latest advances in the field from the perspective of photoinduced protocols. To this end, their synthetic applications are organized accordingly to the nature of the radical precursor (formamides through HAT, 4-substituted-1,4-dihydropyridines, oxamic acids, and N-hydroxyphthalimido esters), the mechanistic aspects also being highlighted. The discussion also includes a recent approach proceeding via photolytic C-S cleavage of dithiocarbamate-carbamoyl intermediates. By exploring fundamental concepts, this material aims to offer an understanding of the topic, which will encourage and facilitate the design of new synthetic strategies applying the carbamoyl radical.
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Affiliation(s)
- Bianca T Matsuo
- Department of Chemistry, Federal University of São Carlos, Rodovia Washington Luís, km 235 - SP-310 - São Carlos, São Paulo, 13565-905, Brazil. .,Roy and Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, 231 South 34th Street, Philadelphia, PA 19104-6323, USA
| | - Pedro H R Oliveira
- Department of Chemistry, Federal University of São Carlos, Rodovia Washington Luís, km 235 - SP-310 - São Carlos, São Paulo, 13565-905, Brazil.
| | - Emanuele F Pissinati
- Department of Chemistry, Federal University of São Carlos, Rodovia Washington Luís, km 235 - SP-310 - São Carlos, São Paulo, 13565-905, Brazil.
| | - Kimberly B Vega
- Department of Chemistry, Federal University of São Carlos, Rodovia Washington Luís, km 235 - SP-310 - São Carlos, São Paulo, 13565-905, Brazil.
| | - Iva S de Jesus
- Department of Chemistry, Federal University of São Carlos, Rodovia Washington Luís, km 235 - SP-310 - São Carlos, São Paulo, 13565-905, Brazil.
| | - Jose Tiago M Correia
- Department of Chemistry, Federal University of São Carlos, Rodovia Washington Luís, km 235 - SP-310 - São Carlos, São Paulo, 13565-905, Brazil.
| | - Márcio Paixao
- Department of Chemistry, Federal University of São Carlos, Rodovia Washington Luís, km 235 - SP-310 - São Carlos, São Paulo, 13565-905, Brazil.
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12
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Xie D, Zhang S. Selective Reduction of Quinolinones Promoted by a SmI 2/H 2O/MeOH System. J Org Chem 2022; 87:8757-8763. [PMID: 35698844 DOI: 10.1021/acs.joc.2c00389] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The selective reduction of quinolin-2(1H)-ones promoted by a SmI2/H2O/MeOH system is reported for the first time. The reaction is effectively carried out to afford 3,4-dihydroquinoline-2(1H)-ones under mild conditions in a one-pot fashion with good to excellent yields.
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Affiliation(s)
- Dengbing Xie
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Dushu Lake Campus, Suzhou 215123, People's Republic of China
| | - Songlin Zhang
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Dushu Lake Campus, Suzhou 215123, People's Republic of China
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13
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Ogbu IM, Kurtay G, Robert F, Landais Y. Oxamic acids: useful precursors of carbamoyl radicals. Chem Commun (Camb) 2022; 58:7593-7607. [PMID: 35735051 DOI: 10.1039/d2cc01953a] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
This review article describes the recent development in the chemistry of carbamoyl radicals generated from oxamic acids. This mild and efficient method compares well with previous methods of generation of these nucleophilic radicals. The oxidative decarboxylation of oxamic acids can be mediated through thermal, photochemical, electrochemical or photoelectrochemical means, generating carbamoyl radicals, which may further add to unsaturated systems to provide a broad range of important amides. Oxidative decarboxylation of oxamic acids also offers a straightforward entry for the preparation of urethanes, ureas, and thioureas.
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Affiliation(s)
- Ikechukwu Martin Ogbu
- University of Bordeaux, Institute of Molecular Sciences (ISM), UMR-CNRS 5255, 351, Cours de la Libération, 33405 Talence, Cedex, France. .,Alex Ekwueme Federal University, Department of Chemistry, Faculty of Sciences, Ndufu-Alike Ikwo, Abakaliki, Ebonyi State, Nigeria
| | - Gülbin Kurtay
- University of Bordeaux, Institute of Molecular Sciences (ISM), UMR-CNRS 5255, 351, Cours de la Libération, 33405 Talence, Cedex, France. .,University of Ankara, Department of Chemistry, Faculty of Science, Ankara, Turkey
| | - Frédéric Robert
- University of Bordeaux, Institute of Molecular Sciences (ISM), UMR-CNRS 5255, 351, Cours de la Libération, 33405 Talence, Cedex, France.
| | - Yannick Landais
- University of Bordeaux, Institute of Molecular Sciences (ISM), UMR-CNRS 5255, 351, Cours de la Libération, 33405 Talence, Cedex, France.
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14
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Mazodze CM, Petersen WF. Silver-catalysed double decarboxylative addition-cyclisation-elimination cascade sequence for the synthesis of quinolin-2-ones. Org Biomol Chem 2022; 20:3469-3474. [PMID: 35420621 DOI: 10.1039/d2ob00521b] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
An atom-efficient silver-catalysed double carboxylative strategy for the one-step synthesis of quinolin-2-ones via an addition-cyclisation-elimination cascade sequence of oxamic acids to acrylic acids, mediated either thermally or photochemically, is reported. The reaction was applicable to the synthesis of a broad range of quinolin-2-ones and featured a double-disconnection approach that constructed the quinolin-2-one core via the formal and direct addition of a C(sp2)-H/C(sp2)-H olefin moiety to a phenylformamide precursor.
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Affiliation(s)
- C Munashe Mazodze
- Department of Chemistry, University of Cape Town, Rondebosch, Cape Town, 7700, South Africa.
| | - Wade F Petersen
- Department of Chemistry, University of Cape Town, Rondebosch, Cape Town, 7700, South Africa.
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15
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Abstract
The quest to find milder and more sustainable methods to generate highly reactive, carbon-centred intermediates has led to a resurgence of interest in radical chemistry. In particular, carboxylic acids are seen as attractive radical precursors due their availability, low cost, diversity, and sustainability. Moreover, the corresponding nucleophilic carbon-radical can be easily accessed through a favourable radical decarboxylation process, extruding CO2 as a traceless by-product. This review summarizes the recent progress on using carboxylic acids directly as convenient radical precursors for the formation of carbon-carbon bonds via the 1,4-radical conjugate addition (Giese) reaction.
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Affiliation(s)
- David M Kitcatt
- Institute of Chemical Sciences, School of Engineering and Physical Sciences, Heriot-Watt University, Edinburgh, EH14 4AS, UK.
| | - Simon Nicolle
- GlaxoSmithKline, Gunnels Wood Rd, Stevenage SG1 2NY, UK
| | - Ai-Lan Lee
- Institute of Chemical Sciences, School of Engineering and Physical Sciences, Heriot-Watt University, Edinburgh, EH14 4AS, UK.
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16
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Wang L, Xie L, Fang Z, Zhang Q, Li D. Tandem trifluoromethylthiolation and cyclization of N-aryl-3-butenamides with AgSCF 3: divergent access to CF 3S-substituted 3,4-dihydroquinolin-2-ones and azaspiro[4,5]dienones. Org Chem Front 2022. [DOI: 10.1039/d2qo00207h] [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
A AgSCF3-mediated tandem trifluoromethylthiolaton and cyclization of N-aryl-3-butenamides was developed. It showed divergent reactivities and enabled the selective syntheses of CF3S-substituted 3,4-dihydroquinolin-2-ones and azaspiro[4,5]dienones. The selectivity was achieved through different...
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17
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Li Q, Zhao CQ, Chen T, Han LB. Direct phosphorylation of benzylic C–H bonds under transition metal-free conditions forming sp 3C–P bonds. RSC Adv 2022; 12:18441-18444. [PMID: 35799919 PMCID: PMC9227801 DOI: 10.1039/d2ra02812c] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2022] [Accepted: 06/16/2022] [Indexed: 12/16/2022] Open
Abstract
Direct phosphorylation of benzylic C–H bonds with secondary phosphine oxides was first realized. The reaction was performed in organo/aqueous biphasic system and under transition metal-free conditions, proceeding via the cross dehydrogenative coupling.
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Affiliation(s)
- Qiang Li
- College of Chemistry and Chemical Engineering, Liaocheng University, No. 1, Hunan Road, Liaocheng, Shandong 252059, China
| | - Chang-Qiu Zhao
- College of Chemistry and Chemical Engineering, Liaocheng University, No. 1, Hunan Road, Liaocheng, Shandong 252059, China
| | - Tieqiao Chen
- Key Laboratory of Ministry of Education for Advanced Materials in Tropical Island Resources, Hainan Provincial Key Lab of Fine Chem, Hainan Provincial Fine Chemical Engineering Research Center, Hainan University, Haikou 570228, China
| | - Li-Biao Han
- Key Laboratory of Ministry of Education for Advanced Materials in Tropical Island Resources, Hainan Provincial Key Lab of Fine Chem, Hainan Provincial Fine Chemical Engineering Research Center, Hainan University, Haikou 570228, China
- Zhejiang Yanfan New Materials Co., Ltd., Shangyu, Zhejiang Province 312369, China
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18
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Yechun W, Jintao Y. Recent Advances in the Decarboxylative Acylation/Cyclization of α-Keto Acids. CHINESE J ORG CHEM 2022. [DOI: 10.6023/cjoc202205025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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19
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Shen M, Zhao J, Xu Y, Zhang X, Fan X. Synthesis of Dihydroquinolinone Derivatives via the Cascade Reaction of o-Silylaryl Triflates with Pyrazolidinones. J Org Chem 2021; 86:15203-15216. [PMID: 34596411 DOI: 10.1021/acs.joc.1c01814] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Presented herein is a novel synthesis of dihydroquinolinone derivatives through an unprecedented cascade reaction of o-silylaryl triflates with pyrazolidinones. Mechanistically, the formation of the title products is believed to involve a cascade procedure including in situ formation of aryne and its addition with pyrazolidinone followed by N-N bond cleavage and intramolecular C-C bond formation/annulation. Compared with literature methods for the synthesis of dihydroquinolinones, this protocol has advantages such as multistep transformations accomplished in one pot, broad substrate scope, mild reaction conditions, and good tolerance of diverse functional groups. In addition, the products thus obtained demonstrated significant in vitro antiproliferative activity in selected human cancer cell lines.
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Affiliation(s)
- Mengyang Shen
- NMPA Key Laboratory for Research and Evaluation of Innovative Drug, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China
| | - Jie Zhao
- NMPA Key Laboratory for Research and Evaluation of Innovative Drug, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China
| | - Yuanshuang Xu
- NMPA Key Laboratory for Research and Evaluation of Innovative Drug, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China
| | - Xinying Zhang
- NMPA Key Laboratory for Research and Evaluation of Innovative Drug, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China
| | - Xuesen Fan
- NMPA Key Laboratory for Research and Evaluation of Innovative Drug, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China
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20
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Behera BK, Sahu AK, Devi NR, Saikia AK. K 2S 2O 8-Mediated Synthesis of Highly Functionalized Pyrroles via Oxidative Self-Dimerization of N-Propargylamines. J Org Chem 2021; 86:12481-12493. [PMID: 34463507 DOI: 10.1021/acs.joc.1c00471] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
An efficient methodology has been developed for the synthesis of tetra- and pentasubstituted pyrroles via oxidative self-dimerization of N-propargylamines catalyzed by silver benzoate in the presence of K2S2O8 in good yields. The protocol provides a simple route for the synthesis of both tetra- and pentasubstituted pyrroles with two carbonyl groups in the side chain. The methodology can be extended toward the synthesis of pyrrolo[3,4-d]pyridazine.
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Affiliation(s)
- Bipin Kumar Behera
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati 781039, India
| | - Archana Kumari Sahu
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati 781039, India
| | - Ngangbam Renubala Devi
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati 781039, India
| | - Anil K Saikia
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati 781039, India
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21
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Punjajom K, Tummatorn J, Ruchirawat S, Thongsornkleeb C. PdCl
2
‐Catalyzed Oxidative Cyclization of
N
‐(2’‐Alkynylaryl)‐1,3‐ketoamides: Synthesis of 3,4‐Diacyl‐2‐Quinolones. ASIAN J ORG CHEM 2021. [DOI: 10.1002/ajoc.202100035] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Kunlayanee Punjajom
- Program on Chemical Biology Chulabhorn Graduate Institute Center of Excellence on Environmental Health and Toxicology (EHT) Ministry of Education 54 Kamphaeng Phet 6 Laksi Bangkok 10210 Thailand
| | - Jumreang Tummatorn
- Program on Chemical Biology Chulabhorn Graduate Institute Center of Excellence on Environmental Health and Toxicology (EHT) Ministry of Education 54 Kamphaeng Phet 6 Laksi Bangkok 10210 Thailand
- Laboratory of Medicinal Chemistry Chulabhorn Research Institute 54 Kamphaeng Phet 6 Laksi Bangkok 10210 Thailand
| | - Somsak Ruchirawat
- Program on Chemical Biology Chulabhorn Graduate Institute Center of Excellence on Environmental Health and Toxicology (EHT) Ministry of Education 54 Kamphaeng Phet 6 Laksi Bangkok 10210 Thailand
- Laboratory of Medicinal Chemistry Chulabhorn Research Institute 54 Kamphaeng Phet 6 Laksi Bangkok 10210 Thailand
| | - Charnsak Thongsornkleeb
- Program on Chemical Biology Chulabhorn Graduate Institute Center of Excellence on Environmental Health and Toxicology (EHT) Ministry of Education 54 Kamphaeng Phet 6 Laksi Bangkok 10210 Thailand
- Laboratory of Organic Synthesis Chulabhorn Research Institute 54 Kamphaeng Phet 6 Laksi Bangkok 10210 Thailand
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22
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Wang ZL, Chen J, He YH, Guan Z. Visible-Light-Mediated Additive-Free Decarboxylative Ketonization Reaction of Acrylic Acids: An Access to α-Thiocyanate Ketones. J Org Chem 2021; 86:3741-3749. [PMID: 33595302 DOI: 10.1021/acs.joc.0c02471] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Visible-light-mediated additive-free decarboxylative functionalization of acrylic acids has been developed. The reaction uses inexpensive organic dye 9,10-dicyanoanthracene as a photocatalyst and uses the ubiquitous dioxygen as both an oxygen source and an oxidant. Through this mild and environmentally friendly method, a series of important α-thiocyanate ketones can be generated from easily available acrylic acids and ammonium thiocyanate. In addition, the facile transformation of product α-thiocyanate ketones makes this method have great potential for application in organic and pharmaceutical chemistry.
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Affiliation(s)
- Zhi-Lv Wang
- Key Laboratory of Applied Chemistry of Chongqing Municipality, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
| | - Jie Chen
- 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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23
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Yang X, Wang L, Hu F, Xu L, Li S, Li SS. Redox-Triggered Switchable Synthesis of 3,4-Dihydroquinolin-2(1H)-one Derivatives via Hydride Transfer/N-Dealkylation/N-Acylation. Org Lett 2020; 23:358-364. [DOI: 10.1021/acs.orglett.0c03863] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Xiaoyu Yang
- College of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University, Changcheng Road #700, Qingdao 266109, PR China
| | - Liang Wang
- College of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University, Changcheng Road #700, Qingdao 266109, PR China
- College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Zhengzhou Road #53, Qingdao 266042, PR China
| | - Fangzhi Hu
- College of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University, Changcheng Road #700, Qingdao 266109, PR China
| | - Lubin Xu
- College of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University, Changcheng Road #700, Qingdao 266109, PR China
| | - Sanming Li
- School of Pharmacy, Shenyang Pharmaceutical University, Hongliu Road #85, Benxi 117004, PR China
| | - Shuai-Shuai Li
- College of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University, Changcheng Road #700, Qingdao 266109, PR China
- College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Zhengzhou Road #53, Qingdao 266042, PR China
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24
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Hong WP, Shin I, Lim HN. Recent Advances in One-Pot Modular Synthesis of 2-Quinolones. Molecules 2020; 25:E5450. [PMID: 33233747 PMCID: PMC7699938 DOI: 10.3390/molecules25225450] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2020] [Revised: 11/14/2020] [Accepted: 11/16/2020] [Indexed: 11/17/2022] Open
Abstract
It is known that 2-quinolones are broadly applicable chemical structures in medicinal and agrochemical research as well as various functional materials. A number of current publications about their synthesis and their applications emphasize the importance of these small molecules. The early synthetic chemistry originated from the same principle of the classical Friedländer and Knorr procedures for the preparation of quinolines. The analogous processes were developed by applying new synthetic tools such as novel catalysts, the microwave irradiation method, etc., whereas recent innovations in new bond forming reactions have allowed for novel strategies to construct the core structures of 2-quinolones beyond the bond disconnections based on two classical reactions. Over the last few decades, some reviews on structure-based, catalyst-based, and bioactivity-based studies have been released. In this focused review, we extensively surveyed recent examples of one-pot reactions, particularly in view of modular approaches. Thus, the contents are categorized as three major sections (two-, three-, and four-component reactions) according to the number of reagents that ultimately compose atoms of the core structures of 2-quinolones. The collected synthetic methods are discussed from the perspectives of strategy, efficiency, selectivity, and reaction mechanism.
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Affiliation(s)
- Wan Pyo Hong
- School of Advanced Materials and Chemical Engineering, Daegu Catholic University, 13-13, Hayang-ro, Hayang-eup, Gyeongsan-si, Gyeongbuk 38430, Korea;
| | - Inji Shin
- Department of Fine Chemistry, Seoul National University of Science and Technology, 232 Gongneung-ro, Nowon-gu, Seoul 01811, Korea
| | - Hee Nam Lim
- Eco-Friendly New Materials Research Center, Therapeutics&Biotechnology Division, 141, Gajeong-ro, Yuseong-gu, Daejeon 34114, Korea
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25
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Kamlar M, Runemark A, Císařová I, Sundén H. Polycyclizations of Ketoesters: Synthesis of Complex Tricycles with up to Five Stereogenic Centers from Available Starting Materials. Org Lett 2020; 22:8387-8391. [PMID: 33079554 PMCID: PMC7660947 DOI: 10.1021/acs.orglett.0c03020] [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: 09/09/2020] [Indexed: 12/22/2022]
Abstract
Here we present a polycyclization of oxotriphenylhexanoates. The polycyclization is governed by electronic effects, and three major synthetic paths have been established leading to stereochemically complex tricyclic frameworks with up to five stereogenic centers. The method is compatible with an array of functional groups, allowing pharmacophoric elements to be introduced post cyclization.
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Affiliation(s)
- Martin Kamlar
- Department
of Chemistry and Chemical Engineering, Chalmers
University of Technology, Kemivägen 10, 412 96 Gothenburg, Sweden
- Department
of Organic Chemistry, Faculty of Science, Charles University, Hlavova 2030/8, 128 43 Prague 2, Czech Republic
| | - August Runemark
- Department
of Chemistry and Chemical Engineering, Chalmers
University of Technology, Kemivägen 10, 412 96 Gothenburg, Sweden
| | - Ivana Císařová
- Department
of Inorganic Chemistry, Faculty of Science, Charles University, Hlavova 2030/8, 128 43 Prague 2, Czech Republic
| | - Henrik Sundén
- Department
of Chemistry and Chemical Engineering, Chalmers
University of Technology, Kemivägen 10, 412 96 Gothenburg, Sweden
- Department
of Chemistry and Molecular Biology, University
of Gothenburg, Kemivägen 10, SE-412 96 Gothenburg, Sweden
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26
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Chen P, Zhou Q, Chen Z, Liu YK, Liang Y, Tang KW, Liu Y. Silver-promoted oxidative sulfonylation and ring-expansion of vinylcyclopropanes with sodium sulfinates leading to dihydronaphthalene derivatives. Org Biomol Chem 2020; 18:7345-7354. [PMID: 32909577 DOI: 10.1039/d0ob01570a] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Silver-promoted sulfonylation and ring-expansion of vinylcyclopropanes with sodium sulfinates is established for the construction of 1-sulfonylmethylated 3,4-dihydronaphthalenes. This sulfonylation process involves a radical pathway, including sulfonyl radical formation, radical addition, ring-opening and cyclization. The 1-sulfonylmethylated 3,4-dihydronaphthalenes can be converted into other useful products.
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Affiliation(s)
- Pu Chen
- Department of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414006, China.
| | - Quan Zhou
- Department of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414006, China.
| | - Zan Chen
- Department of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414006, China.
| | - Yu-Kui Liu
- Department of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414006, China.
| | - Yun Liang
- Key Laboratory of the Assembly and Application of Organic Functional Molecules of Hunan Province, Hunan Normal University, Changsha, Hunan 410081, China
| | - Ke-Wen Tang
- Department of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414006, China.
| | - Yu Liu
- Department of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414006, China. and Key Laboratory of the Assembly and Application of Organic Functional Molecules of Hunan Province, Hunan Normal University, Changsha, Hunan 410081, China
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27
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Bhattacharya D, Tomar R, Babu SA. Conversion of 2,3‐Dihydrobenzo[
b
][1,4]dioxine‐2‐carboxamides to 3‐Oxoquinolin‐2(1
H
)‐ones via Ring‐Opening and Formal 6‐
endo
‐trig Cyclization‐Involved Heck Reactions. ASIAN J ORG CHEM 2020. [DOI: 10.1002/ajoc.202000096] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Debabrata Bhattacharya
- Department of Chemical SciencesIndian Institute of Science Education and Research (IISER) Mohali Knowledge City, Sector 81, SAS Nagar, Mohali, Manauli P.O., Punjab, 140306 (India)
| | - Radha Tomar
- Department of Chemical SciencesIndian Institute of Science Education and Research (IISER) Mohali Knowledge City, Sector 81, SAS Nagar, Mohali, Manauli P.O., Punjab, 140306 (India)
| | - Srinivasarao Arulananda Babu
- Department of Chemical SciencesIndian Institute of Science Education and Research (IISER) Mohali Knowledge City, Sector 81, SAS Nagar, Mohali, Manauli P.O., Punjab, 140306 (India)
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28
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Lalji RSK, Kumar P, Gupta M, Parmar VS, Singh BK. Palladium‐Catalyzed Decarboxylative Synthesis of 5
H
‐Benzo[4,5][1,3]oxazino[2,3‐
a
]isoindole‐5,11(6a
H
)‐Diones using 2‐Phenyl‐4
H
‐Benzo[
d
][1,3]oxazin‐4‐Ones and α‐Oxo Carboxylic Acids. Adv Synth Catal 2020. [DOI: 10.1002/adsc.201901142] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Ram Sunil Kumar Lalji
- Bioorganic Laboratory, Department of Chemistry University of Delhi Delhi 110 007 India
- Department of Chemistry, Kirori Mal College University of Delhi Delhi 110007 India
| | - Prashant Kumar
- Bioorganic Laboratory, Department of Chemistry University of Delhi Delhi 110 007 India
- Department of Chemistry SRM University, Delhi-NCR Sonepat Haryana-131029 India
| | - Mohit Gupta
- Bioorganic Laboratory, Department of Chemistry University of Delhi Delhi 110 007 India
- Department of Chemistry, L.N.M.S. College B. N. Mandal University Birpur Bihar-854340 India
| | - Virinder S. Parmar
- Bioorganic Laboratory, Department of Chemistry University of Delhi Delhi 110 007 India
- Department of Chemistry and Environmental Science, Medgar Evers College The City University of New York Brooklyn, NY 11225 USA
| | - Brajendra K. Singh
- Bioorganic Laboratory, Department of Chemistry University of Delhi Delhi 110 007 India
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29
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Ajarul S, Kayet A, Pati TK, Maiti DK. A competitive and highly selective 7-, 6- and 5-annulation with 1,3-migration through C-H and N-H - alkyne coupling. Chem Commun (Camb) 2020; 56:474-477. [PMID: 31829322 DOI: 10.1039/c9cc07360d] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We demonstrated a highly competitive and selective C-C and N-C cross-coupled 7-, 6- and 5-annulation utilizing 2-ethynylanilides to afford functionalized 1H-benzo[b]azepin-2(5H)-ones, 2-quinolinones, and 3-acylindoles in high yield. ZnCl2 was found to be the smart catalyst for 7- and 5-annulation with 1,3-migration through C-H and N-H functionalization, respectively, whereas molecular iodine performed the C-H functionalized 6-annulation with a nonconventional 1,3 H-shift. The mechanism was investigated by intermediate trapping, control, and labeling experiments.
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Affiliation(s)
- Sk Ajarul
- Department of Chemistry, University of Calcutta, 92 A. P. C. Road, Kolkata-700009, India.
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30
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Yuan JW, Zhu JL, Zhu HL, Peng F, Yang LY, Mao P, Zhang SR, Li YC, Qu LB. Transition-metal free direct C–H functionalization of quinoxalin-2(1H)-ones with oxamic acids leading to 3-carbamoyl quinoxalin-2(1H)-ones. Org Chem Front 2020. [DOI: 10.1039/c9qo01322a] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
A practical transition-metal free decarboxylative coupling reaction of oxamic acids with quinoxalin-2(1H)-ones has been developed under mild conditions.
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Affiliation(s)
- Jin-Wei Yuan
- School of Chemistry & Chemical Engineering
- Henan University of Technology
- Academician Workstation for Natural Medicinal Chemistry of Henan Province
- Zhengzhou 450001
- China
| | - Jun-Liang Zhu
- School of Chemistry & Chemical Engineering
- Henan University of Technology
- Academician Workstation for Natural Medicinal Chemistry of Henan Province
- Zhengzhou 450001
- China
| | - Hu-Lin Zhu
- School of Chemistry & Chemical Engineering
- Henan University of Technology
- Academician Workstation for Natural Medicinal Chemistry of Henan Province
- Zhengzhou 450001
- China
| | - Fang Peng
- School of Chemistry & Chemical Engineering
- Henan University of Technology
- Academician Workstation for Natural Medicinal Chemistry of Henan Province
- Zhengzhou 450001
- China
| | - Liang-Yu Yang
- School of Chemistry & Chemical Engineering
- Henan University of Technology
- Academician Workstation for Natural Medicinal Chemistry of Henan Province
- Zhengzhou 450001
- China
| | - Pu Mao
- School of Chemistry & Chemical Engineering
- Henan University of Technology
- Academician Workstation for Natural Medicinal Chemistry of Henan Province
- Zhengzhou 450001
- China
| | - Shou-Ren Zhang
- Henan Key Laboratory of Nanocomposites and Applications
- Institute of Nanostructured Functional Materials
- Huanghe Science and Technology College
- Zhengzhou 450006
- China
| | - Yan-Chun Li
- Henan Key Laboratory of Nanocomposites and Applications
- Institute of Nanostructured Functional Materials
- Huanghe Science and Technology College
- Zhengzhou 450006
- China
| | - Ling-Bo Qu
- College of Chemistry
- Zhengzhou University
- Zhengzhou 450001
- China
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31
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Jaspal S, Shinde VN, Meena N, Nipate DS, Rangan K, Kumar A. Metal-free benzoylation of imidazoheterocycles by oxidative decarboxylation of arylglyoxylic acids. Org Biomol Chem 2020; 18:9072-9080. [DOI: 10.1039/d0ob01842b] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
A simple and straightforward approach has been realized for the direct benzoylation of imidazoheterocycles by oxidative decarboxylation of arylglyoxylic acids in the presence of K2S2O8 as an oxidant.
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Affiliation(s)
- Sonam Jaspal
- Department of Chemistry
- Birla Institute of Technology and Science Pilani
- Pilani Campus
- India
| | - Vikki N. Shinde
- Department of Chemistry
- Birla Institute of Technology and Science Pilani
- Pilani Campus
- India
| | - Neha Meena
- Department of Chemistry
- Birla Institute of Technology and Science Pilani
- Pilani Campus
- India
| | - Dhananjay S. Nipate
- Department of Chemistry
- Birla Institute of Technology and Science Pilani
- Pilani Campus
- India
| | - Krishnan Rangan
- Department of Chemistry
- Birla Institute of Technology and Science Pilani
- India
| | - Anil Kumar
- Department of Chemistry
- Birla Institute of Technology and Science Pilani
- Pilani Campus
- India
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32
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Gao RX, Luan XQ, Xie ZY, Yang L, Pei Y. Fe-Catalyzed decarbonylative cascade reaction of N-aryl cinnamamides with aliphatic aldehydes to construct 3,4-dihydroquinolin-2(1H)-ones. Org Biomol Chem 2019; 17:5262-5268. [PMID: 31086867 DOI: 10.1039/c9ob00492k] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
A practical Fe-catalyzed decarbonylative cascade reaction of N-aryl cinnamamides with aliphatic aldehydes to provide C3 alkylated 3,4-dihydroquinolin-2(1H)-ones is developed. Aliphatic aldehydes were oxidatively decarbonylated into 1°, 2° and 3° alkyl radicals conveniently, allowing for the subsequent cascade construction of C(sp3)-C(sp3) and C(sp3)-C(sp2) bonds via radical addition and HAS-type cyclization. The importance of the amide linkage and the selectivity of the 6-endo-trig over 5-exo-trig cyclization pathway were elucidated by experimental results and DFT calculations.
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Affiliation(s)
- Ru-Xin Gao
- Key Laboratory for Environmentally Friendly Chemistry and Application of the Ministry of Education, Key Laboratory for Green Organic Synthesis and Application of Hunan Province, College of Chemistry, Xiangtan University, Hunan, 411105, PR China.
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33
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Xu X, Luo Z, Liu C, Wang X, Deng L, Gao J. Metal‐Free Synthesis of 3,4‐Dihydroquinolin‐2(1
H
)‐Ones via Cascade Oxidative Decarbonylative Radical Alkylation/Cyclization of Cinnamamides with Aliphatic Aldehydes. ASIAN J ORG CHEM 2019. [DOI: 10.1002/ajoc.201900424] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Xuemei Xu
- College of Chemical EngineeringAnHui University of Science and Technology Huainan 232001 China
| | - Zaigang Luo
- College of Chemical EngineeringAnHui University of Science and Technology Huainan 232001 China
| | - Chen‐Fu Liu
- School of Pharmaceutical ScienceGannan Medical University Ganzhou 341000 China
| | - Xiuxiu Wang
- College of Chemical EngineeringAnHui University of Science and Technology Huainan 232001 China
| | - Liangdan Deng
- College of Chemical EngineeringAnHui University of Science and Technology Huainan 232001 China
| | - Jie Gao
- College of Chemical EngineeringAnHui University of Science and Technology Huainan 232001 China
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34
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Penteado F, Lopes EF, Alves D, Perin G, Jacob RG, Lenardão EJ. α-Keto Acids: Acylating Agents in Organic Synthesis. Chem Rev 2019; 119:7113-7278. [DOI: 10.1021/acs.chemrev.8b00782] [Citation(s) in RCA: 111] [Impact Index Per Article: 22.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Filipe Penteado
- Laboratório de Síntese Orgânica Limpa - LASOL - CCQFA - Universidade Federal de Pelotas - UFPel, P.O. Box 354, 96010-900 Pelotas, RS, Brazil
| | - Eric F. Lopes
- Laboratório de Síntese Orgânica Limpa - LASOL - CCQFA - Universidade Federal de Pelotas - UFPel, P.O. Box 354, 96010-900 Pelotas, RS, Brazil
| | - Diego Alves
- Laboratório de Síntese Orgânica Limpa - LASOL - CCQFA - Universidade Federal de Pelotas - UFPel, P.O. Box 354, 96010-900 Pelotas, RS, Brazil
| | - Gelson Perin
- Laboratório de Síntese Orgânica Limpa - LASOL - CCQFA - Universidade Federal de Pelotas - UFPel, P.O. Box 354, 96010-900 Pelotas, RS, Brazil
| | - Raquel G. Jacob
- Laboratório de Síntese Orgânica Limpa - LASOL - CCQFA - Universidade Federal de Pelotas - UFPel, P.O. Box 354, 96010-900 Pelotas, RS, Brazil
| | - Eder J. Lenardão
- Laboratório de Síntese Orgânica Limpa - LASOL - CCQFA - Universidade Federal de Pelotas - UFPel, P.O. Box 354, 96010-900 Pelotas, RS, Brazil
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35
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Singh K, Malviya BK, Verma VP, Badsara SS, Bhardwaj VK, Sharma S. Cationic Pd(II) catalyzed regioselective intramolecular hydroarylation for the efficient synthesis of 4-aryl-2-quinolones. Tetrahedron 2019. [DOI: 10.1016/j.tet.2019.03.026] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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36
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Ahn BH, Lee IY, Lim HN. Step-economical synthesis of 3-amido-2-quinolones by dendritic copper powder-mediated one-pot reaction. Org Biomol Chem 2019; 16:7851-7860. [PMID: 30303225 DOI: 10.1039/c8ob01994k] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The one-pot protocol by the dendritic copper powder-mediated Knoevenagel condensation/annelation is delineated here for the synthesis of 3-amido-2-quinolones. It is practical with moisture tolerance and easy setup, and is compatible with many functional groups under mild conditions. This method was applied for the preparation of the key intermediates of biologically relevant 3-amido-2-quinolones.
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Affiliation(s)
- Byung Hoon Ahn
- Eco-Friendly New Materials Research Center, Therapeutics&Biotechnology Division, Korea Research Institute of Chemical Technology (KRICT), 141 Gajeong-ro, Yuseong-gu, Daejeon 34114, Republic of Korea.
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37
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Mai WP, Wang F, Zhang XF, Wang SM, Duan QP, Lu K. Nickel-catalysed radical tandem cyclisation/arylation: practical synthesis of 4-benzyl-3,3-difluoro-γ-lactams. Org Biomol Chem 2019; 16:6491-6498. [PMID: 30155541 DOI: 10.1039/c8ob01389f] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Enabled by nickel catalysis, a practical access to the synthesis of 4-benzyl-3,3-difluoro-γ-lactams has been developed via radical tandem cyclisation/arylation. This method features a nickel catalyst, high reaction efficiency, and good substrate tolerance and scope. This protocol proceeds through an intramolecular radical addition to form a primary alkyl radical followed by intermolecular Suzuki-type coupling.
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Affiliation(s)
- Wen-Peng Mai
- School of Materials and Chemical Engineering, Henan University of Engineering, Zhengzhou, 450006, China.
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38
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Xiao YM, Liu Y, Mai WP, Mao P, Yuan JW, Yang LR. A Novel and Facile Synthesis of Chroman-4-one Derivatives via
Cascade Radical Cyclization Under Metal-free Condition. ChemistrySelect 2019. [DOI: 10.1002/slct.201900147] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Yong-Mei Xiao
- School of Chemistry and Chemical Engineering; Henan University of Technology; Zhengzhou 450001 China
| | - Yang Liu
- School of Chemistry and Chemical Engineering; Henan University of Technology; Zhengzhou 450001 China
| | - Wen-Peng Mai
- School of Chemistry and Chemical Engineering; Henan University of Technology; Zhengzhou 450001 China
- School of Materials and Chemical Engineering; Henan University of Engineering; Zhengzhou 450006 China
| | - Pu Mao
- School of Chemistry and Chemical Engineering; Henan University of Technology; Zhengzhou 450001 China
| | - Jin-Wei Yuan
- School of Chemistry and Chemical Engineering; Henan University of Technology; Zhengzhou 450001 China
| | - Liang-Ru Yang
- School of Chemistry and Chemical Engineering; Henan University of Technology; Zhengzhou 450001 China
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39
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Yuan J, Liu S, Xiao Y, Mao P, Yang L, Qu L. Palladium-catalyzed oxidative amidation of quinoxalin-2(1H)-ones with acetonitrile: a highly efficient strategy toward 3-amidated quinoxalin-2(1H)-ones. Org Biomol Chem 2019; 17:876-884. [PMID: 30628609 DOI: 10.1039/c8ob03061h] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
A novel and convenient palladium-catalyzed direct oxidative amidation of quinoxalin-2(1H)-ones with acetonitrile was developed to synthesize 3-amidated quinoxalin-2(1H)-ones. A series of 3-acetamino quinoxalin-2(1H)-one derivatives were constructed with good to excellent yields. This methodology provided a practical approach to various 3-acetamino quinoxalin-2(1H)-ones from the readily available starting material acetonitrile.
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Affiliation(s)
- Jinwei Yuan
- Engineering Technology Research Center for Grain & Oil Food, State Administration of Grain, Zhengzhou 450001, P. R. China
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40
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Liu Y, Wang QL, Chen Z, Zhou Q, Zhou CS, Xiong BQ, Zhang PL, Yang CA, Tang KW. Silver-mediated oxidative C–C bond sulfonylation/arylation of methylenecyclopropanes with sodium sulfinates: facile access to 3-sulfonyl-1,2-dihydronaphthalenes. Org Biomol Chem 2019; 17:1365-1369. [DOI: 10.1039/c8ob03045f] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
The novel AgNO3-mediated sulfonylation/arylation of a C–C σ-bond in MCPs with sodium sulfinates to synthesize 3-sulfonylated 1,2-dihydronaphthalenes is reported.
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Affiliation(s)
- Yu Liu
- Department of Chemistry and Chemical Engineering
- Hunan Institute of Science and Technology
- Yueyang 414006
- China
| | - Qiao-Lin Wang
- Department of Chemistry and Chemical Engineering
- Hunan Institute of Science and Technology
- Yueyang 414006
- China
| | - Zan Chen
- Department of Chemistry and Chemical Engineering
- Hunan Institute of Science and Technology
- Yueyang 414006
- China
| | - Quan Zhou
- Department of Chemistry and Chemical Engineering
- Hunan Institute of Science and Technology
- Yueyang 414006
- China
| | - Cong-Shan Zhou
- Department of Chemistry and Chemical Engineering
- Hunan Institute of Science and Technology
- Yueyang 414006
- China
| | - Bi-Quan Xiong
- Department of Chemistry and Chemical Engineering
- Hunan Institute of Science and Technology
- Yueyang 414006
- China
| | - Pan-Liang Zhang
- Department of Chemistry and Chemical Engineering
- Hunan Institute of Science and Technology
- Yueyang 414006
- China
| | - Chang-An Yang
- Department of Chemistry and Chemical Engineering
- Hunan Institute of Science and Technology
- Yueyang 414006
- China
| | - Ke-Wen Tang
- Department of Chemistry and Chemical Engineering
- Hunan Institute of Science and Technology
- Yueyang 414006
- China
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41
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Jatoi AH, Pawar GG, Robert F, Landais Y. Visible-light mediated carbamoyl radical addition to heteroarenes. Chem Commun (Camb) 2019; 55:466-469. [DOI: 10.1039/c8cc08326f] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Decarboxylative carbamoylation of heteroarenes using oxamic acids under visible-light irradiation is described.
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Affiliation(s)
- Ashique Hussain Jatoi
- University of Bordeaux
- Institute of Molecular Sciences (ISM)
- UMR-CNRS 5255
- 33405 Talence Cedex
- France
| | - Govind Goroba Pawar
- University of Bordeaux
- Institute of Molecular Sciences (ISM)
- UMR-CNRS 5255
- 33405 Talence Cedex
- France
| | - Frédéric Robert
- University of Bordeaux
- Institute of Molecular Sciences (ISM)
- UMR-CNRS 5255
- 33405 Talence Cedex
- France
| | - Yannick Landais
- University of Bordeaux
- Institute of Molecular Sciences (ISM)
- UMR-CNRS 5255
- 33405 Talence Cedex
- France
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42
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Hong G, Yuan J, Fu J, Pan G, Wang Z, Yang L, Xiao Y, Mao P, Zhang X. Transition-metal-free decarboxylative C3-difluoroarylmethylation of quinoxalin-2(1H)-ones with α,α-difluoroarylacetic acids. Org Chem Front 2019. [DOI: 10.1039/c9qo00105k] [Citation(s) in RCA: 81] [Impact Index Per Article: 16.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
A facile and efficient transition-metal-free decarboxylative radical coupling reaction of α,α-difluoroarylacetic acids with quinoxalin-2(1H)-ones has been developed under mild conditions.
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Affiliation(s)
- Guangfeng Hong
- Department of Chemistry
- Fudan University
- Shanghai 200433
- P. R. China
- Zhengzhou Tobacco Research Institute of CNTC
| | - Jinwei Yuan
- School of Chemistry & Chemical Engineering
- Henan University of Technology; Academician Workstation for Natural Medicinal Chemistry of Henan Province
- Zhengzhou 450001
- P. R. China
| | - Junhao Fu
- School of Chemistry & Chemical Engineering
- Henan University of Technology; Academician Workstation for Natural Medicinal Chemistry of Henan Province
- Zhengzhou 450001
- P. R. China
| | - Guoyong Pan
- School of Chemistry & Chemical Engineering
- Henan University of Technology; Academician Workstation for Natural Medicinal Chemistry of Henan Province
- Zhengzhou 450001
- P. R. China
| | - Zhengwang Wang
- School of Chemistry & Chemical Engineering
- Henan University of Technology; Academician Workstation for Natural Medicinal Chemistry of Henan Province
- Zhengzhou 450001
- P. R. China
| | - Liangru Yang
- School of Chemistry & Chemical Engineering
- Henan University of Technology; Academician Workstation for Natural Medicinal Chemistry of Henan Province
- Zhengzhou 450001
- P. R. China
| | - Yongmei Xiao
- School of Chemistry & Chemical Engineering
- Henan University of Technology; Academician Workstation for Natural Medicinal Chemistry of Henan Province
- Zhengzhou 450001
- P. R. China
| | - Pu Mao
- School of Chemistry & Chemical Engineering
- Henan University of Technology; Academician Workstation for Natural Medicinal Chemistry of Henan Province
- Zhengzhou 450001
- P. R. China
| | - Xiangmin Zhang
- Department of Chemistry
- Fudan University
- Shanghai 200433
- P. R. China
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43
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Mkrtchyan S, Iaroshenko VO. New Entries to 3-Acylchromones: TM-Catalysed Decarboxylative Cross-Coupling of α-Keto Acids with ortho
-Hydroxyarylenaminones, 2,3-Unsubstituted Chromones and 3-Iodochromones. European J Org Chem 2018. [DOI: 10.1002/ejoc.201801231] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Satenik Mkrtchyan
- Laboratory of Homogeneous Catalysis and Molecular Design at the Centre of Molecular and Macromolecular Studies; Polish Academy of Sciences; Sienkiewicza 112, PL -90-363 Łodź Poland
| | - Viktor O. Iaroshenko
- Laboratory of Homogeneous Catalysis and Molecular Design at the Centre of Molecular and Macromolecular Studies; Polish Academy of Sciences; Sienkiewicza 112, PL -90-363 Łodź Poland
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44
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Du X, Huang J, Nechaev AA, Yao R, Gong J, Van der Eycken EV, Pereshivko OP, Peshkov VA. Gold-catalyzed post-Ugi alkyne hydroarylation for the synthesis of 2-quinolones. Beilstein J Org Chem 2018; 14:2572-2579. [PMID: 30410618 PMCID: PMC6204774 DOI: 10.3762/bjoc.14.234] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2018] [Accepted: 09/13/2018] [Indexed: 11/23/2022] Open
Abstract
A series of propargylamides containing an electron-rich benzene ring was prepared through the Ugi reaction of 3,5-dimethoxyaniline with various propiolic acids, aldehydes and isocyanides. Subjecting these adducts to a gold-catalyzed intramolecular alkyne hydroarylation process allowed to efficiently construct the 2-quinolone core bearing a branched substituent on the nitrogen atom.
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Affiliation(s)
- Xiaochen Du
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Dushu Lake Campus, Suzhou, 215123, China
| | - Jianjun Huang
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Dushu Lake Campus, Suzhou, 215123, China
| | - Anton A Nechaev
- Laboratory for Organic & Microwave-Assisted Chemistry (LOMAC), Department of Chemistry, University of Leuven (KU Leuven), Celestijnenlaan 200F, 3001 Leuven, Belgium
| | - Ruwei Yao
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Dushu Lake Campus, Suzhou, 215123, China
| | - Jing Gong
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Dushu Lake Campus, Suzhou, 215123, China
| | - Erik V Van der Eycken
- Laboratory for Organic & Microwave-Assisted Chemistry (LOMAC), Department of Chemistry, University of Leuven (KU Leuven), Celestijnenlaan 200F, 3001 Leuven, Belgium.,Peoples' Friendship University of Russia (RUDN University), 6 Miklukho-Maklaya street, Moscow, 117198, Russia
| | - Olga P Pereshivko
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Dushu Lake Campus, Suzhou, 215123, China
| | - Vsevolod A Peshkov
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Dushu Lake Campus, Suzhou, 215123, China.,Department of Chemistry, School of Science and Technology, Nazarbayev University, 53 Kabanbay Batyr Ave, Block 7, Astana, 010000, Republic of Kazakhstan
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45
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Chuang TH, Chuang CP. Organic amine-mediated free-radical carbocyclization reactions of 2,2,2-trihalogeno-substituted N-(2-alkynylphenyl)acetamides. Org Biomol Chem 2018; 16:7265-7273. [PMID: 30259031 DOI: 10.1039/c8ob01870g] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An efficient method for the synthesis of 3-halogeno-substituted 4-benzoylquinolin-2-(1H)-ones from N-(2-alkynylphenyl)-substituted trihaloacetamides has been developed, in which organic amines (TNPA and DIEA) act as the electron donors. In this carbocyclization reaction, a new C-C bond formation occurred regioselectively via a 6-exo-dig radical cyclization. A variety of useful functional groups are compatible with the reaction conditions. In this process, readily removable organic amines were employed and no heavy metal catalysts were required.
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Affiliation(s)
- Tsung-Han Chuang
- Department of Chemistry, National Cheng Kung University, Tainan, Taiwan 70101, Republic of China.
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46
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Mandal S, Bera T, Dubey G, Saha J, Laha JK. Uses of K2S2O8 in Metal-Catalyzed and Metal-Free Oxidative Transformations. ACS Catal 2018. [DOI: 10.1021/acscatal.8b00743] [Citation(s) in RCA: 147] [Impact Index Per Article: 24.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Sudip Mandal
- Centre of Biomedical Research, Division of Molecular Synthesis and Drug Discovery, SGPGIMS Campus, Raebareli Road, Lucknow 226014, India
| | - Tishyasoumya Bera
- Centre of Biomedical Research, Division of Molecular Synthesis and Drug Discovery, SGPGIMS Campus, Raebareli Road, Lucknow 226014, India
| | - Gurudutt Dubey
- Department of Pharmaceutical Technology (Process Chemistry), National Institute of Pharmaceutical Education and Research, S. A. S. Nagar, Punjab 160062, India
| | - Jaideep Saha
- Centre of Biomedical Research, Division of Molecular Synthesis and Drug Discovery, SGPGIMS Campus, Raebareli Road, Lucknow 226014, India
| | - Joydev K. Laha
- Department of Pharmaceutical Technology (Process Chemistry), National Institute of Pharmaceutical Education and Research, S. A. S. Nagar, Punjab 160062, India
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47
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Meng M, Wang G, Yang L, Cheng K, Qi C. Silver-catalyzed Double Decarboxylative Radical Alkynylation/Annulation of Arylpropiolic Acids with α-keto Acids: Access to Ynones and Flavones under Mild Conditions. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201701469] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Mengting Meng
- Zhejiang Key Laboratory of Alternative Technologies for Fine Chemicals Process; Shaoxing University; 312000 Shaoxing People's Republic of China
| | - Guofang Wang
- Zhejiang Key Laboratory of Alternative Technologies for Fine Chemicals Process; Shaoxing University; 312000 Shaoxing People's Republic of China
| | - Liangfeng Yang
- Zhejiang Key Laboratory of Alternative Technologies for Fine Chemicals Process; Shaoxing University; 312000 Shaoxing People's Republic of China
| | - Kai Cheng
- Zhejiang Key Laboratory of Alternative Technologies for Fine Chemicals Process; Shaoxing University; 312000 Shaoxing People's Republic of China
| | - Chenze Qi
- Zhejiang Key Laboratory of Alternative Technologies for Fine Chemicals Process; Shaoxing University; 312000 Shaoxing People's Republic of China
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48
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Wang K, Chen X, Yuan M, Yao M, Zhu H, Xue Y, Luo Z, Zhang Y. Silver-Mediated Cyanomethylation of Cinnamamides by Direct C(sp3)–H Functionalization of Acetonitrile. J Org Chem 2018; 83:1525-1531. [DOI: 10.1021/acs.joc.7b02585] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Kongchao Wang
- Hubei
Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation,
School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Xia Chen
- Hubei
Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation,
School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Ming Yuan
- School
of Pharmacy, Hubei University of Chinese Medicine, Wuhan 430065, China
| | - Meng Yao
- Hubei
Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation,
School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Hucheng Zhu
- Hubei
Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation,
School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Yongbo Xue
- Hubei
Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation,
School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Zengwei Luo
- Hubei
Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation,
School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Yonghui Zhang
- Hubei
Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation,
School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
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49
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Hu H, Chen X, Sun K, Wang J, Liu Y, Liu H, Yu B, Sun Y, Qu L, Zhao Y. Silver-catalyzed decarboxylative cascade radical cyclization of tert-carboxylic acids and o-(allyloxy)arylaldehydes towards chroman-4-one derivatives. Org Chem Front 2018. [DOI: 10.1039/c8qo00882e] [Citation(s) in RCA: 57] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
A convenient silver-catalyzed decarboxylative cascade radical cyclization of tertiary carboxylic acids and o-(allyloxy)arylaldehydes was developed to synthesize 3-alkyl-substituted chroman-4-one derivatives.
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Affiliation(s)
- Hao Hu
- Henan Joint International Research Laboratory of Green Construction of Functional Molecules and their Bioanalytical Applications. College of Chemistry and Molecular Engineering
- Zhengzhou University
- Zhengzhou 450001
- China
| | - Xiaolan Chen
- Henan Joint International Research Laboratory of Green Construction of Functional Molecules and their Bioanalytical Applications. College of Chemistry and Molecular Engineering
- Zhengzhou University
- Zhengzhou 450001
- China
- The Key Laboratory for Chemical Biology of Fujian Province
| | - Kai Sun
- Henan Joint International Research Laboratory of Green Construction of Functional Molecules and their Bioanalytical Applications. College of Chemistry and Molecular Engineering
- Zhengzhou University
- Zhengzhou 450001
- China
| | - Junchao Wang
- Henan Joint International Research Laboratory of Green Construction of Functional Molecules and their Bioanalytical Applications. College of Chemistry and Molecular Engineering
- Zhengzhou University
- Zhengzhou 450001
- China
| | - Yan Liu
- Henan Joint International Research Laboratory of Green Construction of Functional Molecules and their Bioanalytical Applications. College of Chemistry and Molecular Engineering
- Zhengzhou University
- Zhengzhou 450001
- China
- College of Biological and Pharmaceutical Engineering
| | - Hui Liu
- Henan Joint International Research Laboratory of Green Construction of Functional Molecules and their Bioanalytical Applications. College of Chemistry and Molecular Engineering
- Zhengzhou University
- Zhengzhou 450001
- China
| | - Bing Yu
- Henan Joint International Research Laboratory of Green Construction of Functional Molecules and their Bioanalytical Applications. College of Chemistry and Molecular Engineering
- Zhengzhou University
- Zhengzhou 450001
- China
| | - Yuanqiang Sun
- Henan Joint International Research Laboratory of Green Construction of Functional Molecules and their Bioanalytical Applications. College of Chemistry and Molecular Engineering
- Zhengzhou University
- Zhengzhou 450001
- China
| | - Lingbo Qu
- Henan Joint International Research Laboratory of Green Construction of Functional Molecules and their Bioanalytical Applications. College of Chemistry and Molecular Engineering
- Zhengzhou University
- Zhengzhou 450001
- China
| | - Yufen Zhao
- Henan Joint International Research Laboratory of Green Construction of Functional Molecules and their Bioanalytical Applications. College of Chemistry and Molecular Engineering
- Zhengzhou University
- Zhengzhou 450001
- China
- The Key Laboratory for Chemical Biology of Fujian Province
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50
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Fang L, Xue L, Yang P, Li X, Wang Z. A Facile Route to 4-Polyfluoroarylquinolin-2(1H)-ones and 4-Polyfluoroarylcoumarins via C–H Bond Activation. CHEM LETT 2017. [DOI: 10.1246/cl.170466] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Ling Fang
- College of Environment and Resources, Chongqing Technology and Business University, Chongqing 400067, P. R. China
| | - Lijun Xue
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 401331, P. R. China
| | - Peng Yang
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 401331, P. R. China
| | - Xiaodan Li
- College of Environment and Resources, Chongqing Technology and Business University, Chongqing 400067, P. R. China
| | - Zhiyong Wang
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 401331, P. R. China
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