1
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Nakajima M, Nagasawa S, Yamazaki K, Yazawa T, Yoneyama H, Kotaka Y, Nemoto T. Direct S 0 → T n Transition under Visible Light Irradiation Enabling Synthesis of a Pseudoindoxyl Scaffold. Org Lett 2024; 26:3289-3293. [PMID: 38568017 DOI: 10.1021/acs.orglett.4c00957] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/20/2024]
Abstract
Pseudoindoxyl is a partial skeleton found in various natural products. Its light-absorption properties make it useful for the design of functional molecules. However, versatile synthesis methods have not yet been reported. In this report, we present a versatile synthetic method for pseudoindoxyls using the direct S0 → Tn transition under visible light irradiation. We also discuss the application of pseudoindoxyls as photocatalysts.
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Affiliation(s)
- Masaya Nakajima
- Graduate School of Pharmaceutical Sciences, Chiba University, 1-8-1, Inohana, Chuo-ku, Chiba 260-8675, Japan
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Sho Nagasawa
- Graduate School of Pharmaceutical Sciences, Chiba University, 1-8-1, Inohana, Chuo-ku, Chiba 260-8675, Japan
| | - Keita Yamazaki
- Graduate School of Pharmaceutical Sciences, Chiba University, 1-8-1, Inohana, Chuo-ku, Chiba 260-8675, Japan
| | - Tomohiro Yazawa
- Graduate School of Pharmaceutical Sciences, Chiba University, 1-8-1, Inohana, Chuo-ku, Chiba 260-8675, Japan
| | - Honoka Yoneyama
- Graduate School of Pharmaceutical Sciences, Chiba University, 1-8-1, Inohana, Chuo-ku, Chiba 260-8675, Japan
| | - Yuko Kotaka
- Graduate School of Pharmaceutical Sciences, Chiba University, 1-8-1, Inohana, Chuo-ku, Chiba 260-8675, Japan
| | - Tetsuhiro Nemoto
- Graduate School of Pharmaceutical Sciences, Chiba University, 1-8-1, Inohana, Chuo-ku, Chiba 260-8675, Japan
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2
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Akbari A, Seyedi N, Faryabi MS. Design of a new method for the synthesis of novel 2-aryl/alkyl-3H-indol-3-ones. Mol Divers 2024; 28:3-9. [PMID: 35715624 DOI: 10.1007/s11030-022-10464-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2022] [Accepted: 05/16/2022] [Indexed: 10/18/2022]
Abstract
In this research, a mild, efficient, and general method has been developed to synthesize the new derivatives of 2-aryl/alkyl-3H-indol-3-ones in moderate to excellent yields. This method allowed the syntheses of these compounds via the three-component reaction of anhydride compound, sodium cyanide, and aniline derivatives using acetic anhydride as an organic catalyst in one-pot reactions. The advantages of this method include mild reaction conditions, simple procedures, and easy workup.
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Affiliation(s)
- Ali Akbari
- Department of Chemistry, Faculty of Science, University of Jiroft, Jiroft, P. O. Box 8767161167, Iran.
| | - Neda Seyedi
- Department of Chemistry, Faculty of Science, University of Jiroft, Jiroft, P. O. Box 8767161167, Iran
| | - Muhammad Saleh Faryabi
- Department of Chemistry, Faculty of Science, University of Jiroft, Jiroft, P. O. Box 8767161167, Iran
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3
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Nagare YK, Shah IA, Yadav J, Pawar AP, Rangan K, Choudhary R, Iype E, Kumar I. Electrochemical Oxidative Addition of Nucleophiles on 2-Arylindoles: Synthesis of C2-Heteroquaternary Indolin-3-ones. J Org Chem 2022; 87:15771-15782. [DOI: 10.1021/acs.joc.2c01734] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Affiliation(s)
- Yadav Kacharu Nagare
- Department of Chemistry, Birla Institute of Technology and Science, Pilani 333031, Rajasthan, India
| | - Imtiyaz Ahmad Shah
- Department of Chemistry, Birla Institute of Technology and Science, Pilani 333031, Rajasthan, India
| | - Jyothi Yadav
- Department of Chemistry, Birla Institute of Technology and Science, Pilani 333031, Rajasthan, India
| | - Amol Prakash Pawar
- Department of Chemistry, Birla Institute of Technology and Science, Pilani 333031, Rajasthan, India
| | - Krishnan Rangan
- Department of Chemistry, Birla Institute of Technology and Science, Hyderabad 500078, Telangana, India
| | | | - Eldhose Iype
- College of Engineering and Technology, American University of the Middle East, Egaila 54200, Kuwait
| | - Indresh Kumar
- Department of Chemistry, Birla Institute of Technology and Science, Pilani 333031, Rajasthan, India
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4
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Facile three-component reactions for the synthesis of N-unsubstituted 1H-pyrrol-3(2H)-ones and base induced divergent N–H and C–C bond derivatizations. Tetrahedron 2022. [DOI: 10.1016/j.tet.2022.133038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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5
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Yan J, Zhang W, He Q, Hou J, Zeng H, Wei H, Xie W. Enantioselective direct vinylogous Michael addition for constructing enantioenriched γ,γ-dialkyl substituted butyrolactams and octahydroindoles. Org Biomol Chem 2022; 20:2387-2391. [PMID: 35254368 DOI: 10.1039/d2ob00112h] [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
A nickel(II)-catalyzed asymmetric direct vinylogous Michael addition of γ-alkyl monosubstituted α,β-unsaturated butyrolactams to α,β-unsaturated carbonyl compounds has been disclosed, affording γ,γ-dialkyl substituted butyrolactams in good yields and satisfactory enantioselectivities. A tandem catalytic asymmetric vinylogous Michael addition/intramolecular Michael addition has also been developed based on this reaction, which enabled the construction of enantioenriched octahydroindoles with three consecutive stereogenic carbon centers.
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Affiliation(s)
- Jiahang Yan
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, 22 Xinong Road, Yangling 712100, Shaanxi, China.
| | - Wenting Zhang
- State Key Laboratory of Stress Biology for Arid Areas, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Qiaoqiao He
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, 22 Xinong Road, Yangling 712100, Shaanxi, China.
| | - Jun Hou
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, 22 Xinong Road, Yangling 712100, Shaanxi, China.
| | - Hongxin Zeng
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, 22 Xinong Road, Yangling 712100, Shaanxi, China.
| | - Hongbo Wei
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, 22 Xinong Road, Yangling 712100, Shaanxi, China.
| | - Weiqing Xie
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, 22 Xinong Road, Yangling 712100, Shaanxi, China. .,State Key Laboratory of Stress Biology for Arid Areas, Northwest A&F University, Yangling 712100, Shaanxi, China
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6
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Zhao Y, An J, Yang F, Guan X, Fu X, Li Z, Wang D, Zhou M, Yang Y, He B. One‐Pot Asymmetric Oxidative Dearomatization of 2‐Substituted Indoles by Merging Transition Metal Catalysis with Organocatalysis to Access C2‐Tetrasubstituted Indolin‐3‐Ones. Adv Synth Catal 2022. [DOI: 10.1002/adsc.202101498] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Yong‐Long Zhao
- State Key Laboratory of Functions and Applications of Medicinal Plants School of Pharmacy and Engineering Research Center for the Development and Application of Ethnic Medicine and TCM (Ministry of Education) Guizhou Medical University Guiyang 550004 P.R. China
| | - Jian‐Xiong An
- State Key Laboratory of Functions and Applications of Medicinal Plants School of Pharmacy and Engineering Research Center for the Development and Application of Ethnic Medicine and TCM (Ministry of Education) Guizhou Medical University Guiyang 550004 P.R. China
| | - Fen‐Fen Yang
- State Key Laboratory of Functions and Applications of Medicinal Plants School of Pharmacy and Engineering Research Center for the Development and Application of Ethnic Medicine and TCM (Ministry of Education) Guizhou Medical University Guiyang 550004 P.R. China
| | - Xiang Guan
- State Key Laboratory of Functions and Applications of Medicinal Plants School of Pharmacy and Engineering Research Center for the Development and Application of Ethnic Medicine and TCM (Ministry of Education) Guizhou Medical University Guiyang 550004 P.R. China
| | - Xiao‐Zhong Fu
- State Key Laboratory of Functions and Applications of Medicinal Plants School of Pharmacy and Engineering Research Center for the Development and Application of Ethnic Medicine and TCM (Ministry of Education) Guizhou Medical University Guiyang 550004 P.R. China
| | - Zong‐Qin Li
- Department of Neurology Sichuan Mianyang 404 Hospital Mianyang 621000 P.R. China
| | - Da‐Peng Wang
- Key Laboratory of Environmental Pollution Monitoring and Disease Control Ministry of Education Guizhou Medical University Guiyang 550025 P.R. China
| | - Meng Zhou
- State Key Laboratory of Functions and Applications of Medicinal Plants School of Pharmacy and Engineering Research Center for the Development and Application of Ethnic Medicine and TCM (Ministry of Education) Guizhou Medical University Guiyang 550004 P.R. China
| | - Yuan‐Yong Yang
- State Key Laboratory of Functions and Applications of Medicinal Plants School of Pharmacy and Engineering Research Center for the Development and Application of Ethnic Medicine and TCM (Ministry of Education) Guizhou Medical University Guiyang 550004 P.R. China
| | - Bin He
- State Key Laboratory of Functions and Applications of Medicinal Plants School of Pharmacy and Engineering Research Center for the Development and Application of Ethnic Medicine and TCM (Ministry of Education) Guizhou Medical University Guiyang 550004 P.R. China
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7
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An JX, Yang FF, Wang P, Gu ZC, Li Y, Chen L, Zhao YL, He B. A solid-supported organocatalyst for asymmetric Mannich reaction to construct C2-quaternary indolin-3-ones. RSC Adv 2022; 12:7040-7045. [PMID: 35424681 PMCID: PMC8982289 DOI: 10.1039/d2ra00456a] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2022] [Accepted: 02/21/2022] [Indexed: 12/29/2022] Open
Abstract
A simple and novel solid-supported organocatalyst from a 2-chlorotrityl chloride resin-immobilized 4-hydroxyproline was developed, and this organocatalyst has been used for the asymmetric Mannich reaction of 2-aryl-3H-indol-3-ones and aldehydes/ketones. A series of C2-quaternary indolin-3-ones were prepared in good yields (up to 83%) and with excellent diastereoselectivities (up to 20 : 1) and enantioselectivities (up to 99% ee). In addition, the organocatalyst can be recovered by simple filtration and also be reused for the asymmetric Mannich reaction without significant loss of catalytic efficiency. A simple and novel solid-supported organocatalyst from a 2-chlorotrityl chloride resin-immobilized 4-hydroxyproline was developed, which has been used for the asymmetric Mannich reaction of 2-aryl-3H-indol-3-ones and aldehydes/ketones.![]()
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Affiliation(s)
- Jian-Xiong An
- State Key Laboratory of Functions and Applications of Medicinal Plants, School of Pharmacy, Engineering Research Center for the Development and Application of Ethnic Medicine, TCM (Ministry of Education), Guizhou Medical University, Guiyang 550004, People's Republic of China
| | - Fen-Fen Yang
- State Key Laboratory of Functions and Applications of Medicinal Plants, School of Pharmacy, Engineering Research Center for the Development and Application of Ethnic Medicine, TCM (Ministry of Education), Guizhou Medical University, Guiyang 550004, People's Republic of China
| | - Pan Wang
- State Key Laboratory of Functions and Applications of Medicinal Plants, School of Pharmacy, Engineering Research Center for the Development and Application of Ethnic Medicine, TCM (Ministry of Education), Guizhou Medical University, Guiyang 550004, People's Republic of China
| | - Zhi-Cheng Gu
- State Key Laboratory of Functions and Applications of Medicinal Plants, School of Pharmacy, Engineering Research Center for the Development and Application of Ethnic Medicine, TCM (Ministry of Education), Guizhou Medical University, Guiyang 550004, People's Republic of China
| | - Yan Li
- School of Basic Medical Science, Guizhou Medical University, Guiyang 550004, People's Republic of China
| | - Lei Chen
- State Key Laboratory of Functions and Applications of Medicinal Plants, School of Pharmacy, Engineering Research Center for the Development and Application of Ethnic Medicine, TCM (Ministry of Education), Guizhou Medical University, Guiyang 550004, People's Republic of China
| | - Yong-Long Zhao
- State Key Laboratory of Functions and Applications of Medicinal Plants, School of Pharmacy, Engineering Research Center for the Development and Application of Ethnic Medicine, TCM (Ministry of Education), Guizhou Medical University, Guiyang 550004, People's Republic of China
| | - Bin He
- State Key Laboratory of Functions and Applications of Medicinal Plants, School of Pharmacy, Engineering Research Center for the Development and Application of Ethnic Medicine, TCM (Ministry of Education), Guizhou Medical University, Guiyang 550004, People's Republic of China
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8
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Yamashiro T, Abe T, Sawada D. Synthesis of 2-monosubstituted indolin-3-ones by cine-substitution of 3-azido-2-methoxyindolines. Org Chem Front 2022. [DOI: 10.1039/d2qo00048b] [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
We report herein the formal cine-substitution/hydrolysis of 3-azidoindole intermediates generated from 3-azido-2-methoxyindolines (AZINs). This protocol enables the introduction of both various carboxylic acid and alcohol into indolin-3-ones at the C2-position,...
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9
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Li Y, Xu J, He LJ, Luo YF, Meng JP, Tang DY, Li HY, Chen ZZ, Xu ZG. Dieckmann Condensation of Ugi N-Acylamino Amide Product: Facile Access to Functionalized 2,2-Disubstituted Indolin-3-ones. J Org Chem 2021; 87:823-834. [PMID: 34918940 DOI: 10.1021/acs.joc.1c02501] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Structurally unique 2,2-disubstituted indolin-3-ones with a quaternary carbon center have been constructed through a novel C-C bond formation at the C3 position of Ugi N-acylamino amide adducts employing an organic base-mediated Dieckmann condensation. This facile, flexible protocol can be fine-tuned to construct drug-like pyrazino[1,2-a]indole fragments with the same quaternary carbon center only through the variation of the acid part in Ugi input. This novel and expeditious methodology has a broad scope and can rapidly generate the drug-like indolin-3-one core.
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Affiliation(s)
- Yong Li
- College of Pharmacy, National & Local Joint Engineering Research Center of Targeted and Innovative Therapeutics, IATTI, Chongqing University of Arts and Sciences, 319 Honghe Avenue, Yongchuan, Chongqing 402160, China
| | - Jia Xu
- College of Pharmacy, National & Local Joint Engineering Research Center of Targeted and Innovative Therapeutics, IATTI, Chongqing University of Arts and Sciences, 319 Honghe Avenue, Yongchuan, Chongqing 402160, China
| | - Liu-Jun He
- College of Pharmacy, National & Local Joint Engineering Research Center of Targeted and Innovative Therapeutics, IATTI, Chongqing University of Arts and Sciences, 319 Honghe Avenue, Yongchuan, Chongqing 402160, China
| | - Ya-Fei Luo
- College of Pharmacy, National & Local Joint Engineering Research Center of Targeted and Innovative Therapeutics, IATTI, Chongqing University of Arts and Sciences, 319 Honghe Avenue, Yongchuan, Chongqing 402160, China
| | - Jiang-Ping Meng
- College of Pharmacy, National & Local Joint Engineering Research Center of Targeted and Innovative Therapeutics, IATTI, Chongqing University of Arts and Sciences, 319 Honghe Avenue, Yongchuan, Chongqing 402160, China
| | - Dian-Yong Tang
- College of Pharmacy, National & Local Joint Engineering Research Center of Targeted and Innovative Therapeutics, IATTI, Chongqing University of Arts and Sciences, 319 Honghe Avenue, Yongchuan, Chongqing 402160, China
| | - Hong-Yu Li
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Arkansas for Medical Sciences, Little Rock, Arkansas 72205, United States
| | - Zhong-Zhu Chen
- College of Pharmacy, National & Local Joint Engineering Research Center of Targeted and Innovative Therapeutics, IATTI, Chongqing University of Arts and Sciences, 319 Honghe Avenue, Yongchuan, Chongqing 402160, China
| | - Zhi-Gang Xu
- College of Pharmacy, National & Local Joint Engineering Research Center of Targeted and Innovative Therapeutics, IATTI, Chongqing University of Arts and Sciences, 319 Honghe Avenue, Yongchuan, Chongqing 402160, China
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10
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Xu F, Smith MW. A general approach to 2,2-disubstituted indoxyls: total synthesis of brevianamide A and trigonoliimine C. Chem Sci 2021; 12:13756-13763. [PMID: 34760160 PMCID: PMC8549782 DOI: 10.1039/d1sc03533a] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2021] [Accepted: 09/15/2021] [Indexed: 12/11/2022] Open
Abstract
The indoxyl unit is a common structural motif in alkaloid natural products and bioactive compounds. Here, we report a general method that transforms readily available 2-substituted indoles into 2,2-disubstituted indoxyls via nucleophile coupling with a 2-alkoxyindoxyl intermediate and showcase its utility in short total syntheses of the alkaloids brevianamide A (7 steps) and trigonoliimine C (6 steps). The developed method is operationally simple and demonstrates broad scope in terms of nucleophile identity and indole substitution, tolerating 2-alkyl substituents and free indole N-H groups, elements beyond the scope of most prior approaches. Spirocyclic indoxyl products are also accessible via intramolecular nucleophilic trapping.
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Affiliation(s)
- Fan Xu
- Department of Biochemistry, UT Southwestern Medical Center 5323 Harry Hines Blvd Dallas Texas 75390 USA
| | - Myles W Smith
- Department of Biochemistry, UT Southwestern Medical Center 5323 Harry Hines Blvd Dallas Texas 75390 USA
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11
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Xu H, Ye M, Yang K, Song Q. Regioselective Cross-Coupling of Isatogens with Boronic Acids to Construct 2,2-Disubstituted Indolin-3-one Derivatives. Org Lett 2021; 23:7776-7780. [PMID: 34617759 DOI: 10.1021/acs.orglett.1c02808] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
Herein we present a transition-metal-free cross-coupling reaction of isatogens with boronic acids through a 1,4-metalate shift of a boron "ate" complex. This coupling reaction provides a feasible method to deliver valuable 2,2-disubstituted indolin-3-one derivatives with excellent regioselectivity, which exhibit operational simplicity, good functional group tolerance, and a broad substrate scope.
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Affiliation(s)
- Hetao Xu
- Key Laboratory of Molecule Synthesis and Function Discovery, Fujian Province University, College of Chemistry at Fuzhou University, Fuzhou, Fujian 350108, China
| | - Mingxing Ye
- Key Laboratory of Molecule Synthesis and Function Discovery, Fujian Province University, College of Chemistry at Fuzhou University, Fuzhou, Fujian 350108, China
| | - Kai Yang
- Key Laboratory of Molecule Synthesis and Function Discovery, Fujian Province University, College of Chemistry at Fuzhou University, Fuzhou, Fujian 350108, China
| | - Qiuling Song
- Key Laboratory of Molecule Synthesis and Function Discovery, Fujian Province University, College of Chemistry at Fuzhou University, Fuzhou, Fujian 350108, China.,Institute of Next Generation Matter Transformation, College of Materials Science Engineering at Huaqiao University, 668 Jimei Boulevard, Xiamen, Fujian 361021, China.,Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen 518055, China
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12
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Li J, He W, Lei P, Song J, Huo J, Wei H, Bai H, Xie W. 2,2,2-Trifluroenthanol promoted synthesis of unsymmetrical ureas from dioxazolones and amines via tandem lossen rearrangement/condensation process. SYNTHETIC COMMUN 2021. [DOI: 10.1080/00397911.2021.1983605] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Jian Li
- College of Plant Protection, Northwest A&F University, Yangling, Shaanxi, China
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry and Pharmacy, Northwest A&F University, Yangling, Shaanxi, P. R. China
| | - Wang He
- Engineeing Laboratory of Chemical Resources Utilization in South Xinjiang of Xinjiang Production and Construction Corps Basin, Tarim University, Alar, China
| | - Pan Lei
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry and Pharmacy, Northwest A&F University, Yangling, Shaanxi, P. R. China
| | - Jiacheng Song
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry and Pharmacy, Northwest A&F University, Yangling, Shaanxi, P. R. China
| | - Jiyou Huo
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry and Pharmacy, Northwest A&F University, Yangling, Shaanxi, P. R. China
| | - Hongbo Wei
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry and Pharmacy, Northwest A&F University, Yangling, Shaanxi, P. R. China
| | - Hongjin Bai
- Engineeing Laboratory of Chemical Resources Utilization in South Xinjiang of Xinjiang Production and Construction Corps Basin, Tarim University, Alar, China
| | - Weiqing Xie
- College of Plant Protection, Northwest A&F University, Yangling, Shaanxi, China
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry and Pharmacy, Northwest A&F University, Yangling, Shaanxi, P. R. China
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13
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Chen G, Liu PY, Zou H, Hu J, Fang X, Xu D, He YP, Wei H, Xie W. Au(I)-Catalyzed Domino Cyclization of 1,6-Diynes Incorporated with Indole. Org Lett 2021; 23:2279-2284. [PMID: 33667106 DOI: 10.1021/acs.orglett.1c00411] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
We disclose herein a Au(I)-catalyzed domino cyclization of 1,6-diynes incorporated with indole. This protocol enabled the diastereoselective buildup of indole-fused azabicyclo[3.3.1]nonanes from linear precursors. Density functional theory calculations showed that the reaction proceeded via an unprecedented cascade dearomatization/rearomatization/dearomatization process. Independent gradient model analysis revealed that a noncovalent attractive interaction between the distal alkyne and the Au/proximal complex was responsible for the chemoselectivity of the first spirocyclization step.
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Affiliation(s)
- Guzhou Chen
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, 22 Xinong Road, Yangling 712100, Shaanxi, China
| | - Peng-Yu Liu
- Key Laboratory of Petrochemical Catalytic Science and Technology, Liaoning Shihua University, Dandong Road West 1, Fushun 113001, China
| | - Huanhuan Zou
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, 22 Xinong Road, Yangling 712100, Shaanxi, China
| | - Jiadong Hu
- Yangling Vocational & Technical College, Yangling District, Xianyang, Shaanxi, China
| | - Xiaowu Fang
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, 22 Xinong Road, Yangling 712100, Shaanxi, China
| | - Dongyang Xu
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, 22 Xinong Road, Yangling 712100, Shaanxi, China
| | - Yu-Peng He
- Key Laboratory of Petrochemical Catalytic Science and Technology, Liaoning Shihua University, Dandong Road West 1, Fushun 113001, China
| | - Hongbo Wei
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, 22 Xinong Road, Yangling 712100, Shaanxi, China
| | - Weiqing Xie
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, 22 Xinong Road, Yangling 712100, Shaanxi, China.,Key Laboratory of Botanical Pesticide R&D in Shaanxi Province, Yangling, Shaanxi 712100, China
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14
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Ali R, Chinnam AK, Aswar VR. The Double and Triple Role of L-(+)-tartaric Acid and Dimethyl Urea: A Prevailing Green Approach in Organic Synthesis. CURR ORG CHEM 2021. [DOI: 10.2174/1385272825666210111111313] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
The deep eutectic mixtures (DESs), introduced as a novel alternative to usual volatile
organic solvents for organic transformations, have attracted tremendous attention of the
research community because of their low cost, negligible vapour pressure, low toxicity, biodegradability,
recyclability, insensitivity towards moisture, and ready availability from bulk
renewable resources. Although the low melting mixture of dimethyl urea (DMU)/L-(+)-
tartaric acid (TA) is still in infancy, it is very effective as it plays multiple roles such as solvent,
catalyst and/or reagent in the same pot for many crucial organic transformations. These
unique properties of the DMU/TA mixture prompted us to provide a quick overview of where
the field stands presently and where it might be going in the near future. To our best knowledge,
no review dealing with the applications of a low melting mixture of DMU/TA appeared
in the literature except the one published in 2017, describing only the chemistry of indole systems. Therefore, we
intended to reveal the developments of this versatile, low melting mixture in the modern organic synthesis since its
first report in 2011 by Köenig’s team to date. Hopefully, the present review article will be useful to the researcher
working not only in the arena of synthetic organic chemistry but also to the scientists working in other branches of
science and technology.
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Affiliation(s)
- Rashid Ali
- Department of Chemistry, Jamia Millia Islamia, New Delhi-110025, India
| | - Ajay Kumar Chinnam
- Department of Chemistry, University of Idaho, Moscow, Idaho, 83844-2343, United States
| | - Vikas R. Aswar
- Department of Chemistry, Indian Institute of Technology Bombay, Mumbai, 400076, India
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15
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Guo W, Cai L, Xie Z, Mei W, Liu G, Deng L, Zhuo X, Zhong Y, Zou X, Zheng L, Fan X. Photocatalyzed intermolecular amination for the synthesis of hydrazonamides. Org Chem Front 2021. [DOI: 10.1039/d1qo00338k] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
A photocatalyzed intermolecular amination strategy for the synthesis of hydrazonamides is reported by a multi-component reaction of β-ketonitriles with N,N-disubstituted hydrazines.
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Affiliation(s)
- Wei Guo
- Key Laboratory of Organo-Pharmaceutical Chemistry of Jiangxi Province
- Gannan Normal University
- Ganzhou 341000
- China
| | - Liuhuan Cai
- Key Laboratory of Organo-Pharmaceutical Chemistry of Jiangxi Province
- Gannan Normal University
- Ganzhou 341000
- China
| | - Zhen Xie
- Key Laboratory of Organo-Pharmaceutical Chemistry of Jiangxi Province
- Gannan Normal University
- Ganzhou 341000
- China
| | - Weijie Mei
- Key Laboratory of Organo-Pharmaceutical Chemistry of Jiangxi Province
- Gannan Normal University
- Ganzhou 341000
- China
| | - Gongping Liu
- Key Laboratory of Organo-Pharmaceutical Chemistry of Jiangxi Province
- Gannan Normal University
- Ganzhou 341000
- China
| | - Ling Deng
- Key Laboratory of Organo-Pharmaceutical Chemistry of Jiangxi Province
- Gannan Normal University
- Ganzhou 341000
- China
| | - Xiaoya Zhuo
- Key Laboratory of Organo-Pharmaceutical Chemistry of Jiangxi Province
- Gannan Normal University
- Ganzhou 341000
- China
| | - Yumei Zhong
- Key Laboratory of Organo-Pharmaceutical Chemistry of Jiangxi Province
- Gannan Normal University
- Ganzhou 341000
- China
| | - Xiaoying Zou
- Key Laboratory of Organo-Pharmaceutical Chemistry of Jiangxi Province
- Gannan Normal University
- Ganzhou 341000
- China
| | - Lvyin Zheng
- Key Laboratory of Organo-Pharmaceutical Chemistry of Jiangxi Province
- Gannan Normal University
- Ganzhou 341000
- China
| | - Xiaolin Fan
- Key Laboratory of Organo-Pharmaceutical Chemistry of Jiangxi Province
- Gannan Normal University
- Ganzhou 341000
- China
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16
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Dou Y, Kouklovsky C, Vincent G. Bioinspired Divergent Oxidative Cyclization from Strictosidine and Vincoside Derivatives: Second‐Generation Total Synthesis of (−)‐Cymoside and Access to an Original Hexacyclic‐Fused Furo[3,2‐
b
]indoline. Chemistry 2020; 26:17190-17194. [DOI: 10.1002/chem.202003758] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2020] [Revised: 08/26/2020] [Indexed: 12/12/2022]
Affiliation(s)
- Yingchao Dou
- Institut de Chimie Moléculaire et des Matériaux d'Orsay (ICMMO) Université Paris-Saclay, CNRS 91405 Orsay France
| | - Cyrille Kouklovsky
- Institut de Chimie Moléculaire et des Matériaux d'Orsay (ICMMO) Université Paris-Saclay, CNRS 91405 Orsay France
| | - Guillaume Vincent
- Institut de Chimie Moléculaire et des Matériaux d'Orsay (ICMMO) Université Paris-Saclay, CNRS 91405 Orsay France
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17
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Chang YH, Peng WL, Chen IC, Hsu HY, Wu YK. Palladium-catalyzed α-arylation of indolin-3-ones. Chem Commun (Camb) 2020; 56:4660-4663. [PMID: 32211656 DOI: 10.1039/d0cc00435a] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A method for the catalytic α-arylation of indolin-3-ones was developed. The catalytic system comprising Pd(dba)2 and PAd3 was found to be optimal for the transformation. The protocol features broad functional group compatibility in that a range of arylated indoxyl derivatives bearing a fully substituted carbon center was synthesized with high efficiency. A preliminary bioassay study revealed that the selected indole-substituted indolin-3-ones exhibit favorable cytotoxic activities against HCT-116 cancer cell line.
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Affiliation(s)
- Yu-Hsuan Chang
- Department of Applied Chemistry, National Chiao Tung University, 1001 University Road, Hsinchu 30010, Taiwan
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18
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Dou Y, Kouklovsky C, Gandon V, Vincent G. Enantioselective Total Synthesis of Cymoside through a Bioinspired Oxidative Cyclization of a Strictosidine Derivative. Angew Chem Int Ed Engl 2019; 59:1527-1531. [DOI: 10.1002/anie.201912812] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2019] [Indexed: 11/09/2022]
Affiliation(s)
- Yingchao Dou
- Univ. Paris Sud, Université Paris-Saclay CNRS, Institut de Chimie Moléculaire et des Matériaux d'Orsay (ICMMO) 15, rue Georges Clémenceau 91405 Orsay Cedex France
| | - Cyrille Kouklovsky
- Univ. Paris Sud, Université Paris-Saclay CNRS, Institut de Chimie Moléculaire et des Matériaux d'Orsay (ICMMO) 15, rue Georges Clémenceau 91405 Orsay Cedex France
| | - Vincent Gandon
- Univ. Paris Sud, Université Paris-Saclay CNRS, Institut de Chimie Moléculaire et des Matériaux d'Orsay (ICMMO) 15, rue Georges Clémenceau 91405 Orsay Cedex France
- Laboratoire de Chimie Moléculaire (LCM), CNRS UMR9168 Ecole Polytechnique Institut Polytechnique de Paris Route de Saclay 91128 Palaiseau cedex France
| | - Guillaume Vincent
- Univ. Paris Sud, Université Paris-Saclay CNRS, Institut de Chimie Moléculaire et des Matériaux d'Orsay (ICMMO) 15, rue Georges Clémenceau 91405 Orsay Cedex France
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19
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Dou Y, Kouklovsky C, Gandon V, Vincent G. Enantioselective Total Synthesis of Cymoside through a Bioinspired Oxidative Cyclization of a Strictosidine Derivative. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201912812] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Yingchao Dou
- Univ. Paris Sud, Université Paris-Saclay CNRS, Institut de Chimie Moléculaire et des Matériaux d'Orsay (ICMMO) 15, rue Georges Clémenceau 91405 Orsay Cedex France
| | - Cyrille Kouklovsky
- Univ. Paris Sud, Université Paris-Saclay CNRS, Institut de Chimie Moléculaire et des Matériaux d'Orsay (ICMMO) 15, rue Georges Clémenceau 91405 Orsay Cedex France
| | - Vincent Gandon
- Univ. Paris Sud, Université Paris-Saclay CNRS, Institut de Chimie Moléculaire et des Matériaux d'Orsay (ICMMO) 15, rue Georges Clémenceau 91405 Orsay Cedex France
- Laboratoire de Chimie Moléculaire (LCM), CNRS UMR9168 Ecole Polytechnique Institut Polytechnique de Paris Route de Saclay 91128 Palaiseau cedex France
| | - Guillaume Vincent
- Univ. Paris Sud, Université Paris-Saclay CNRS, Institut de Chimie Moléculaire et des Matériaux d'Orsay (ICMMO) 15, rue Georges Clémenceau 91405 Orsay Cedex France
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20
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Kang H, Jemison AL, Nigro E, Kozlowski MC. Oxidative Coupling of 3-Oxindoles with Indoles and Arenes. CHEMSUSCHEM 2019; 12:3144-3151. [PMID: 30945447 PMCID: PMC6703824 DOI: 10.1002/cssc.201900438] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/14/2019] [Revised: 04/03/2019] [Indexed: 06/09/2023]
Abstract
A highly efficient method for the oxidative coupling of 2-substituted 3-oxindoles with aromatic compounds to form 2,2-disubstituted indolin-3-ones with broad scope is described. This work utilized oxygen as the terminal oxidant and a base-metal catalyst under mild conditions instead of toxic/precious-metal reagents and higher-molecular-weight oxidants. Quaternary structures were produced in modest-to-excellent yields (up to 96 %) without prefunctionalization.
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21
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Varun, Sonam, Kakkar R. Isatin and its derivatives: a survey of recent syntheses, reactions, and applications. MEDCHEMCOMM 2019; 10:351-368. [PMID: 30996856 PMCID: PMC6438150 DOI: 10.1039/c8md00585k] [Citation(s) in RCA: 151] [Impact Index Per Article: 30.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/28/2018] [Accepted: 01/15/2019] [Indexed: 02/06/2023]
Abstract
Isatin (1H-indole-2,3-dione) and its derivatives represent an important class of heterocyclic compounds that can be used as precursors for drug synthesis. Since its discovery, a lot of research work has been done regarding the synthesis, chemical properties, and biological and industrial applications of isatin. In this review, we have reported several novel methods for the synthesis of N-, C2-, and C3-substituted and spiro derivatives of isatin. The isatin moiety also shows important chemical reactions such as oxidation, ring expansion, Friedel-Crafts reaction and aldol condensation. These reactions, in turn, produce several biologically viable compounds like 2-oxindoles, tryptanthrin, indirubins, and many more. We have also summarized some recently reported biological activities exhibited by isatin derivatives, like anti-cancer, anti-bacterial, anti-diabetic and others. Special attention has been paid to their anti-cancer activity, and various anti-cancer targets such as histone deacetylase, carbonic anhydrase, tyrosine kinase, and tubulin have been discussed in detail. Other applications of isatin derivatives, such as in the dye industry and in corrosion prevention, have also been discussed.
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Affiliation(s)
- Varun
- Department of Chemistry , University of Delhi , India .
| | - Sonam
- Department of Chemistry , University of Delhi , India .
| | - Rita Kakkar
- Department of Chemistry , University of Delhi , India .
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22
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Devi L, Shukla R, Rastogi N. Intramolecular trapping of ammonium ylides with N-benzoylbenzotriazoles in aqueous medium: direct access to the pseudoindoxyl scaffold. Org Biomol Chem 2019; 17:135-139. [PMID: 30525156 DOI: 10.1039/c8ob02683a] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The present work documents an operationally simple, clean and practical method for accessing the 2,2-disubstituted indolin-3-one (pseudoindoxyl) scaffold. The rhodium carbenoid mediated reaction between N-o-alkylamino benzoylbenzotriazoles and aryl diazoacetates occurs smoothly in water and exploits the leaving group ability of the benzotriazole moiety to install the carbonyl function in the product. Other highlights of the methodology are a wide substrate scope and experimental practicality given the re-use of the benzotriazole byproduct for starting material preparation.
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Affiliation(s)
- Lalita Devi
- Medicinal and Process Chemistry Division, CSIR-Central Drug Research Institute, Lucknow 226031, India.
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23
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Jiang X, Zhu B, Lin K, Wang G, Su WK, Yu C. Metal-free synthesis of 2,2-disubstituted indolin-3-ones. Org Biomol Chem 2019; 17:2199-2203. [DOI: 10.1039/c8ob03057j] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
A straightforward method for the synthesis of indolin-3-ones bearing a C2-quaternary functionality is reported. This cross-coupling reaction allows the facile synthesis of a series of 2,2-disubstituted indolin-3-ones in the absence of a metal catalyst in up to 94% yields.
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Affiliation(s)
- Xinpeng Jiang
- College of Pharmaceutical Sciences
- Zhejiang University of Technology
- Hangzhou
- P.R. China
| | - Bingbin Zhu
- Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals
- Zhejiang University of Technology
- Hangzhou
- P.R. China
| | - Kai Lin
- Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals
- Zhejiang University of Technology
- Hangzhou
- P.R. China
| | - Guan Wang
- College of Pharmaceutical Sciences
- Zhejiang University of Technology
- Hangzhou
- P.R. China
| | - Wei-Ke Su
- Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals
- Zhejiang University of Technology
- Hangzhou
- P.R. China
| | - Chuanming Yu
- College of Pharmaceutical Sciences
- Zhejiang University of Technology
- Hangzhou
- P.R. China
- Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals
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24
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Singh A, Vanaparthi S, Choudhary S, Krishnan R, Kumar I. Synthesis of C2-tetrasubstituted indolin-3-ones via Cu-catalyzed oxidative dimerization of 2-aryl indoles and cross-addition with indoles. RSC Adv 2019; 9:24050-24056. [PMID: 35527913 PMCID: PMC9069668 DOI: 10.1039/c9ra04741g] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2019] [Accepted: 07/23/2019] [Indexed: 01/01/2023] Open
Abstract
An efficient protocol for the synthesis of 2,2-disubstituted indolin-3-ones under mild conditions has been developed. This reaction involves the copper-catalyzed in situ oxidative de-aromatization of 2-arylindoles to indol-3-one, followed by self-dimerization as well as cross-addition with indoles under mild conditions. The result generates a wide variety of C2-tetrasubstituted indolin-3-ones with good to high yields (62–82%). A general protocol for the synthesis of 2,2-disubstituted indolin-3-ones has been developed through self-dimerization of 2-aryl indoles and cross-addition with indoles under mild Cu-catalyzed oxidative conditions with good to high yields.![]()
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Affiliation(s)
- Anoop Singh
- Department of Chemistry
- Birla Institute of Technology and Science
- India
| | | | - Sachin Choudhary
- Department of Chemistry
- Birla Institute of Technology and Science
- India
| | | | - Indresh Kumar
- Department of Chemistry
- Birla Institute of Technology and Science
- India
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25
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Liu X, Yan X, Tang Y, Jiang CS, Yu JH, Wang K, Zhang H. Direct oxidative dearomatization of indoles: access to structurally diverse 2,2-disubstituted indolin-3-ones. Chem Commun (Camb) 2019; 55:6535-6538. [DOI: 10.1039/c9cc02956g] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Described is an efficient oxidative dearomatization of indoles with TEMPO oxoammonium salt and a broad range of nucleophiles.
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Affiliation(s)
- Xigong Liu
- School of Biological Science and Technology
- University of Jinan
- Jinan 250022
- P. R. China
| | - Xue Yan
- School of Biological Science and Technology
- University of Jinan
- Jinan 250022
- P. R. China
| | - Yingde Tang
- School of Biological Science and Technology
- University of Jinan
- Jinan 250022
- P. R. China
| | - Cheng-Shi Jiang
- School of Biological Science and Technology
- University of Jinan
- Jinan 250022
- P. R. China
| | - Jin-Hai Yu
- School of Biological Science and Technology
- University of Jinan
- Jinan 250022
- P. R. China
| | - Kaiming Wang
- School of Biological Science and Technology
- University of Jinan
- Jinan 250022
- P. R. China
| | - Hua Zhang
- School of Biological Science and Technology
- University of Jinan
- Jinan 250022
- P. R. China
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26
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Hu B, Zhang Q, Zhao S, Wang Y, Xu L, Yan S, Yu F. Direct Oxidative Disulfenylation/Cyclization of 2′‐Hydroxyacetophenones with Thiophenols for the Synthesis of 2,2‐Dithio‐Benzofuran‐3(2
H
)‐Ones. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201801138] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Biao Hu
- Faculty of Life Science and TechnologyKunming University of Science and Technology Kunming 650500 People's Republic of China
| | - Qiaohe Zhang
- Faculty of Life Science and TechnologyKunming University of Science and Technology Kunming 650500 People's Republic of China
| | - Siyun Zhao
- Faculty of Life Science and TechnologyKunming University of Science and Technology Kunming 650500 People's Republic of China
| | - Yanqin Wang
- Faculty of Life Science and TechnologyKunming University of Science and Technology Kunming 650500 People's Republic of China
| | - Li Xu
- Faculty of Life Science and TechnologyKunming University of Science and Technology Kunming 650500 People's Republic of China
| | - Shengjiao Yan
- School of Chemical Science and TechnologyYunnan University Kunming 650091 People's Republic of China
| | - Fuchao Yu
- Faculty of Life Science and TechnologyKunming University of Science and Technology Kunming 650500 People's Republic of China
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27
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Li P, Yong W, Sheng R, Rao W, Zhu X, Zhang X. Pd‐Catalyzed One‐Pot Insertion Reaction of Cyclic
C
‐Acylimines into Carbon‐Carbon σ‐Bonds for the Synthesis of Polyfunctional Indolin‐3‐ones from 2‐Alkynyl Arylazides and Aryl Ketones. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201801162] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Ping Li
- Jiangsu key lab of Biomass-based Green Fuels and Chemicals, College of Chemical EngineeringNanjing Forestry University Nanjing 210037 People's Republic of China
| | - Wanxiong Yong
- Jiangsu key lab of Biomass-based Green Fuels and Chemicals, College of Chemical EngineeringNanjing Forestry University Nanjing 210037 People's Republic of China
| | - Rong Sheng
- Jiangsu key lab of Biomass-based Green Fuels and Chemicals, College of Chemical EngineeringNanjing Forestry University Nanjing 210037 People's Republic of China
| | - Weidong Rao
- Jiangsu key lab of Biomass-based Green Fuels and Chemicals, College of Chemical EngineeringNanjing Forestry University Nanjing 210037 People's Republic of China
| | - Xinbao Zhu
- Jiangsu key lab of Biomass-based Green Fuels and Chemicals, College of Chemical EngineeringNanjing Forestry University Nanjing 210037 People's Republic of China
| | - Xiaoxiang Zhang
- Jiangsu key lab of Biomass-based Green Fuels and Chemicals, College of Chemical EngineeringNanjing Forestry University Nanjing 210037 People's Republic of China
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28
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de Mello AC, Momo PB, Burtoloso ACB, Amarante GW. Metal-Free Insertion Reactions of Diazo Carbonyls to Azlactones. J Org Chem 2018; 83:11399-11406. [PMID: 30134107 DOI: 10.1021/acs.joc.8b01683] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Insertion reactions of diazo carbonyls to azlactones in basic conditions have been performed. The developed method allows the preparation of a wide range of oxazole derivatives in yields ranging from 74 to 98%. Different substituents on both azlactone rings and diazo carbonyls do not compromise the methodology, even those containing stereogenic centers. Isotopic labeling experiments revealed the mechanism may proceed through a rare diazo carbonyl activation by an ammonium salt derivative.
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Affiliation(s)
- Amanda C de Mello
- Department of Chemistry , Federal University of Juiz de Fora , 36036-900 Juiz de Fora , MG , Brazil
| | - Patrícia B Momo
- Institute of Chemistry of São Carlos , University of São Paulo , 13560-970 São Carlos , SP , Brazil
| | - Antonio C B Burtoloso
- Institute of Chemistry of São Carlos , University of São Paulo , 13560-970 São Carlos , SP , Brazil
| | - Giovanni W Amarante
- Department of Chemistry , Federal University of Juiz de Fora , 36036-900 Juiz de Fora , MG , Brazil
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29
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Sha Q, Wang J, Doyle MP. Synthesis of 1 H-Pyrrol-3(2 H)-ones via Three-Component Reactions of 2,3-Diketo Esters, Amines, and Ketones. J Org Chem 2018; 83:11288-11297. [PMID: 30141636 DOI: 10.1021/acs.joc.8b01887] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
An efficient one-pot, three-component reaction of 2,3-diketo esters with amines and ketones has been developed for the synthesis of 1 H-pyrrol-3(2 H)-ones. By using trifluoroacetic acid (TFA) as the additive and acetonitrile (MeCN) as the solvent, this convenient method provides a library of 1 H-pyrrol-3(2 H)-ones in moderate to good yields. The simple protocol features readily available starting materials, a straightforward process, good functional group tolerance, and broad substrate scope.
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Affiliation(s)
- Qiang Sha
- Department of Chemistry, College of Sciences , Nanjing Agricultural University , Nanjing 210095 , P. R. China
| | - Junke Wang
- Department of Chemistry, College of Sciences , Nanjing Agricultural University , Nanjing 210095 , P. R. China
| | - Michael P Doyle
- Department of Chemistry , The University of Texas at San Antonio , San Antonio , Texas 78249 , United States
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30
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Fu W, Zhou Y, Song Q. Copper/Diboron-Mediated Intramolecular Oxygenation and Allylation/Benzylation of Nitroalkynes for the Synthesis of C2-Quaternary Indolin-3-ones. Chem Asian J 2018; 13:2511-2515. [DOI: 10.1002/asia.201800500] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2018] [Revised: 04/28/2018] [Indexed: 01/28/2023]
Affiliation(s)
- Wenqiang Fu
- Institute of Next Generation Matter Transformation; College of Chemical Engineering & College of Material Sciences Engineering at Huaqiao University; 668 Jimei Blvd Xiamen Fujian 361021 P. R. China),
| | - Yao Zhou
- Institute of Next Generation Matter Transformation; College of Chemical Engineering & College of Material Sciences Engineering at Huaqiao University; 668 Jimei Blvd Xiamen Fujian 361021 P. R. China),
| | - Qiuling Song
- Institute of Next Generation Matter Transformation; College of Chemical Engineering & College of Material Sciences Engineering at Huaqiao University; 668 Jimei Blvd Xiamen Fujian 361021 P. R. China),
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31
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Lauwick H, Sun Y, Akdas-Kilig H, Dérien S, Achard M. Access to 3-Oxindoles from Allylic Alcohols and Indoles. Chemistry 2018. [DOI: 10.1002/chem.201800348] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Hortense Lauwick
- Univ Rennes, ISCR (Institut des Sciences Chimiques de Rennes)-UMR 6226; F-35000 Rennes France
| | - Yang Sun
- Univ Rennes, ISCR (Institut des Sciences Chimiques de Rennes)-UMR 6226; F-35000 Rennes France
| | - Huriye Akdas-Kilig
- Univ Rennes, ISCR (Institut des Sciences Chimiques de Rennes)-UMR 6226; F-35000 Rennes France
| | - Sylvie Dérien
- Univ Rennes, ISCR (Institut des Sciences Chimiques de Rennes)-UMR 6226; F-35000 Rennes France
| | - Mathieu Achard
- Univ Rennes, ISCR (Institut des Sciences Chimiques de Rennes)-UMR 6226; F-35000 Rennes France
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32
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Zhao YL, Tang YQ, Fei XH, Xiao T, Lu YD, Fu XZ, He B, Zhou M, Li C, Xu PF, Yang YY. Palladium-catalyzed direct C(sp3)–H arylation of indole-3-ones with aryl halides: a novel and efficient method for the synthesis of nucleophilic 2-monoarylated indole-3-ones. RSC Adv 2018; 8:25292-25297. [PMID: 35539771 PMCID: PMC9082533 DOI: 10.1039/c8ra04807j] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2018] [Accepted: 07/09/2018] [Indexed: 12/25/2022] Open
Abstract
A novel and efficient method for the synthesis of nucleophilic 2-monoarylated indole-3-ones via palladium-catalyzed direct C(sp3)–H arylation of indole-3-ones with aryl halides has been developed.
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