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Brahmachari G. Practice of green chemistry strategies in synthetic organic chemistry: a glimpse of our sincere efforts in green chemistry research. Chem Commun (Camb) 2024. [PMID: 38978452 DOI: 10.1039/d4cc02249a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/10/2024]
Abstract
This feature article summarises our recent contributions (2019-2023) in designing and developing a handful of promising organic transformations for accessing several diversely functionalised biologically relevant organic scaffolds, following the green chemistry principles, particularly focusing on the application of low-energy visible light, electrochemistry, ball-milling, ultrasound, and catalyst- and additive-free synthetic strategies.
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Affiliation(s)
- Goutam Brahmachari
- Laboratory of Natural Products & Organic Synthesis, Department of Chemistry, Visva-Bharati (a Central University), Santiniketan-731 235, West Bengal, India.
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2
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Strieth-Kalthoff F, Szymkuć S, Molga K, Aspuru-Guzik A, Glorius F, Grzybowski BA. Artificial Intelligence for Retrosynthetic Planning Needs Both Data and Expert Knowledge. J Am Chem Soc 2024. [PMID: 38598363 DOI: 10.1021/jacs.4c00338] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/12/2024]
Abstract
Rapid advancements in artificial intelligence (AI) have enabled breakthroughs across many scientific disciplines. In organic chemistry, the challenge of planning complex multistep chemical syntheses should conceptually be well-suited for AI. Yet, the development of AI synthesis planners trained solely on reaction-example-data has stagnated and is not on par with the performance of "hybrid" algorithms combining AI with expert knowledge. This Perspective examines possible causes of these shortcomings, extending beyond the established reasoning of insufficient quantities of reaction data. Drawing attention to the intricacies and data biases that are specific to the domain of synthetic chemistry, we advocate augmenting the unique capabilities of AI with the knowledge base and the reasoning strategies of domain experts. By actively involving synthetic chemists, who are the end users of any synthesis planning software, into the development process, we envision to bridge the gap between computer algorithms and the intricate nature of chemical synthesis.
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Affiliation(s)
- Felix Strieth-Kalthoff
- University of Toronto, Department of Chemistry and Department of Computer Science, 80 St. George St., Toronto, Ontario M5S 3H6, Canada
- University of Toronto, Department of Computer Science, 10 King's College Road, Toronto, Ontario M5S 3G4, Canada
| | - Sara Szymkuć
- Allchemy, 2145 45th Street #201, Highland, Indiana 46322, United States
- Institute of Organic Chemistry, Polish Academy of Sciences, ul. Kasprzaka 44/52, Warsaw 01-224, Poland
| | - Karol Molga
- Allchemy, 2145 45th Street #201, Highland, Indiana 46322, United States
- Institute of Organic Chemistry, Polish Academy of Sciences, ul. Kasprzaka 44/52, Warsaw 01-224, Poland
| | - Alán Aspuru-Guzik
- University of Toronto, Department of Chemistry and Department of Computer Science, 80 St. George St., Toronto, Ontario M5S 3H6, Canada
- University of Toronto, Department of Computer Science, 10 King's College Road, Toronto, Ontario M5S 3G4, Canada
- Vector Institute for Artificial Intelligence, 661 University Ave., Toronto, Ontario M5G 1M1, Canada
- University of Toronto, Department of Chemical Engineering and Applied Chemistry, 200 College St., Toronto, Ontario M5S 3E5, Canada
- University of Toronto, Department of Materials Science and Engineering, 184 College St., Toronto, Ontario M5S 3E4, Canada
| | - Frank Glorius
- Universität Münster, Organisch-Chemisches Institut, Corrensstr. 36, 48149 Münster, Germany
| | - Bartosz A Grzybowski
- Institute of Organic Chemistry, Polish Academy of Sciences, ul. Kasprzaka 44/52, Warsaw 01-224, Poland
- IBS Center for Algorithmic and Robotized Synthesis, CARS, UNIST 50, UNIST-gil, Eonyang-eup, Ulju-gun, Ulsan 689-798, South Korea
- Department of Chemistry, UNIST, 50, UNIST-gil, Eonyang-eup, Ulju-gun, Ulsan 689-798, South Korea
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3
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Iftikhar R, Mazhar A, Iqbal MS, Khan FZ, Askary SH, Sibtain H. Ring forming transformations of ynamides via cycloaddition. RSC Adv 2023; 13:10715-10756. [PMID: 37025669 PMCID: PMC10072253 DOI: 10.1039/d3ra00139c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2023] [Accepted: 03/29/2023] [Indexed: 04/07/2023] Open
Abstract
Ynamides are N-alkyne compounds bearing an electron withdrawing group at the nitrogen atom. They offer unique pathways for the construction of versatile building blocks owing to their exceptional balance between reactivity and stability. Recently several studies have been reported that explore and illustrate the synthetic potential of ynamides and ynamide-derived advanced intermediates in cycloadditions with different reaction partners to yield heterocyclic cycloadducts of synthetic and pharmaceutical value. Cycloaddition reactions of ynamides are the facile and preferable routes for the construction of structural motifs having striking importance in synthetic, medicinal chemistry, and advanced materials. In this systematic review, we highlighted the recently reported novel transformations and synthetic applications that involved the cycloaddition reaction of ynamides. The scope along with the limitations of the transformations are discussed in detail. Synthetic potential of ynamides and ynamide-derived advanced intermediates in cycloaddition reactions with different reaction partners to yield versatile heterocyclic adducts.![]()
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Affiliation(s)
- Ramsha Iftikhar
- Department of Chemistry, Government College University Faisalabad38000-FaisalabadPakistan
| | - Aqsa Mazhar
- Faculty of Health and Medicine, University of New South Wales2033-SydneyAustralia
| | - Muhammad Saqlain Iqbal
- Department of Electrical Information Engineering, Polytechnic University of Bari70126-BariItaly
| | - Faiza Zahid Khan
- Institute of Chemistry, RheinischeFriedrich-Wilhelms-Universität BonnBonnGermany
| | - Syed Hassan Askary
- Department of Chemistry, University of Management and Technology54770-LahorePakistan
| | - Hifza Sibtain
- Department of Chemistry, University of Management and Technology54770-LahorePakistan
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4
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Kazi I, Nandy A, Selvam R, Sekar G. Halogen Bond-Activated Visible-Light-Mediated Regioselective C-H Arylation of 2-Phenylimidazo-[1,2- a]pyridines. J Org Chem 2022; 87:12323-12333. [PMID: 36065525 DOI: 10.1021/acs.joc.2c01548] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
An efficient method for transition metal-free halogen bond-assisted regioselective C-H arylation of 2-phenylimidazo-[1,2-a]pyridines under visible-light condition has been developed. The halogen bond between an aryl halide and base KOtBu initiates an electron transfer process and generates an aryl radical, which catalyzes its coupling with 2-phenylimidazo-[1,2-a]pyridines to give arylated products in good yield. Several control experiments, density functional theory calculations, and ultraviolet-visible analysis indicate the presence of a halogen bond between an aryl halide and KOtBu. This methodology has been successfully utilized to synthesize antileishmanial agents.
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Affiliation(s)
- Imran Kazi
- Department of Chemistry, Indian Institute of Technology Madras, Chennai, Tamil Nadu 600 036, India
| | - Anuradha Nandy
- Department of Chemistry, Indian Institute of Technology Madras, Chennai, Tamil Nadu 600 036, India
| | - Raji Selvam
- Department of Chemistry, Indian Institute of Technology Madras, Chennai, Tamil Nadu 600 036, India
| | - Govindasamy Sekar
- Department of Chemistry, Indian Institute of Technology Madras, Chennai, Tamil Nadu 600 036, India
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5
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Wang Y, Li S, Wang X, Yao Y, Feng L, Ma C. A multi pathway coupled domino strategy: I 2/TBHP-promoted synthesis of imidazopyridines and thiazoles via sp 3, sp 2 and sp C-H functionalization. RSC Adv 2022; 12:5919-5927. [PMID: 35424560 PMCID: PMC8981869 DOI: 10.1039/d1ra07438e] [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: 10/07/2021] [Accepted: 11/21/2021] [Indexed: 12/21/2022] Open
Abstract
I2/TBHP-promoted, one-pot, multi pathway synthesis of imidazopyridines and thiazoles has been achieved through readily available ethylarenes, ethylenearenes and ethynearenes. I2/TBHP as an initiator and oxidant is used to realize the C-H functionalization of this domino reaction. Simple and available starting materials, wide range of functional group tolerance, high potential for drug activity of the products and application in production are the advantageous features of this method.
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Affiliation(s)
- Yishou Wang
- School of Chemistry and Chemical Engineering, Shandong University Jinan 250100 P. R. China
| | - Shichen Li
- School of Chemistry and Chemical Engineering, Shandong University Jinan 250100 P. R. China
| | - Xinfeng Wang
- School of Chemistry and Chemical Engineering, Shandong University Jinan 250100 P. R. China
| | - Yiming Yao
- School of Chemistry and Chemical Engineering, Shandong University Jinan 250100 P. R. China
| | - Lei Feng
- School of Chemistry and Chemical Engineering, Shandong University Jinan 250100 P. R. China
| | - Chen Ma
- School of Chemistry and Chemical Engineering, Shandong University Jinan 250100 P. R. China
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6
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Kujur S, Verma S, Kumar A, Sharma R, Pathak DD. A green polyol approach for the synthesis of Cu 2O NPs adhered on graphene oxide: a robust and efficient catalyst for 1,2,4-triazole and imidazo[1,2- a]pyridine synthesis. NEW J CHEM 2022. [DOI: 10.1039/d2nj00831a] [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
Cu2O NPs immobilized on graphene oxide are used as a heterogeneous catalyst for the synthesis of a series of 1,2,4-triazoles and imidazo[1,2-a]pyridines under solvent-free conditions.
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Affiliation(s)
- Shelly Kujur
- Department of Chemistry and Chemical Biology, Indian Institute of Technology (ISM), Dhanbad, 826004, India
| | - Shruti Verma
- Department of Chemistry and Chemical Biology, Indian Institute of Technology (ISM), Dhanbad, 826004, India
| | - Akash Kumar
- Department of Chemistry and Chemical Biology, Indian Institute of Technology (ISM), Dhanbad, 826004, India
| | - Richa Sharma
- Department of Chemistry, Faculty of Science, Dayalbagh Educational Institute, Dayalbagh, Agra, 282005, India
| | - Devendra Deo Pathak
- Department of Chemistry and Chemical Biology, Indian Institute of Technology (ISM), Dhanbad, 826004, India
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7
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Zhou S, Xie X, Xu X, Dong S, Hu W, Xu X. An asymmetric oxidative cyclization/Mannich-type addition cascade reaction for direct access to chiral pyrrolidin-3-ones. Chem Commun (Camb) 2021; 57:12171-12174. [PMID: 34726687 DOI: 10.1039/d1cc04830a] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An efficient gold and chiral phosphoric acid cooperatively catalyzed enantioselective oxidative cyclization/Mannich-type addition reaction of homopropargyl amides with nitrones has been developed, which provides chiral pyrrolidin-3-ones in high yields with excellent enantioselectivities under mild conditions. This reaction employed stable and readily available alkynes as non-diazo carbene precursors, which provides a 100% atom economy method with high bond formation efficiency.
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Affiliation(s)
- Su Zhou
- Guangdong Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, Guangdong 510006, China.
| | - Xiongda Xie
- Guangdong Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, Guangdong 510006, China.
| | - Xinxin Xu
- Guangdong Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, Guangdong 510006, China.
| | - Shanliang Dong
- Guangdong Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, Guangdong 510006, China.
| | - Wenhao Hu
- Guangdong Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, Guangdong 510006, China.
| | - Xinfang Xu
- Guangdong Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, Guangdong 510006, China.
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8
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Zhou S, Li Y, Liu X, Hu W, Ke Z, Xu X. Enantioselective Oxidative Multi-Functionalization of Terminal Alkynes with Nitrones and Alcohols for Expeditious Assembly of Chiral α-Alkoxy-β-amino-ketones. J Am Chem Soc 2021; 143:14703-14711. [PMID: 34463096 DOI: 10.1021/jacs.1c06178] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Catalytic oxidative functionalization of alkynes has emerged as an effective method in synthetic chemistry in recent decades. However, enantioselective transformations via metal carbene intermediates are quite rare due to the lack of robust chiral catalysts, especially in the intermolecular versions. Herein, we report the first asymmetric three-component reaction of commercially available alkynes with nitrones and alcohols, which affords α-alkoxy-β-amino-ketones in good yields with high to excellent enantioselectivity using combined catalysis by an achiral gold complex and a chiral spiro phosphoric acid (CPA). Mechanistically, this atom-economic reaction involves a catalytic alkyne oxidation/ylide formation/Mannich-type addition sequence that uses nitrone as the oxidant and the leaving fragment imine as the electrophile, providing a novel method for multi-functionalization of commercially available terminal alkynes.
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Affiliation(s)
- Su Zhou
- Guangdong Provincial Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - Yinwu Li
- School of Materials Science & Engineering, Sun Yat-sen University, Guangzhou 510275, China
| | - Xiangrong Liu
- Guangdong Provincial Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - Wenhao Hu
- Guangdong Provincial Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - Zhuofeng Ke
- School of Materials Science & Engineering, Sun Yat-sen University, Guangzhou 510275, China
| | - Xinfang Xu
- Guangdong Provincial Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
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9
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Survey reactivity of 2-aminopyridine and Meldrum’s acid in the presence of aryl glyoxals or aryl aldehydes; ethyl 2-(3-aryl imidazo[1,2-a]pyridin-2-yl)acetates versus ethyl 3-aryl-3-(pyridin-2-ylamino)propanoates. RESEARCH ON CHEMICAL INTERMEDIATES 2021. [DOI: 10.1007/s11164-021-04554-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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10
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Singh D, Chowdhury SR, Pramanik S, Maity S. Molecular iodine enabled generation of iminyl radicals from oximes: A facile route to imidazo[1,2-a]pyridines and its regioselective C-3 sulfenylated products from simple pyridines. Tetrahedron 2021. [DOI: 10.1016/j.tet.2021.132125] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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11
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Zheng Z, Ma X, Cheng X, Zhao K, Gutman K, Li T, Zhang L. Homogeneous Gold-Catalyzed Oxidation Reactions. Chem Rev 2021; 121:8979-9038. [DOI: 10.1021/acs.chemrev.0c00774] [Citation(s) in RCA: 73] [Impact Index Per Article: 24.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Zhitong Zheng
- Department of Chemistry and Biochemistry, University of California, Santa Barbara, California 93106, United States
| | - Xu Ma
- Department of Chemistry and Biochemistry, University of California, Santa Barbara, California 93106, United States
| | - Xinpeng Cheng
- Department of Chemistry and Biochemistry, University of California, Santa Barbara, California 93106, United States
| | - Ke Zhao
- Department of Chemistry and Biochemistry, University of California, Santa Barbara, California 93106, United States
| | - Kaylaa Gutman
- Department of Chemistry and Biochemistry, University of California, Santa Barbara, California 93106, United States
| | - Tianyou Li
- Department of Chemistry and Biochemistry, University of California, Santa Barbara, California 93106, United States
| | - Liming Zhang
- Department of Chemistry and Biochemistry, University of California, Santa Barbara, California 93106, United States
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12
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Bhunia S, Ghosh P, Patra SR. Gold‐Catalyzed Oxidative Alkyne Functionalization by N−O/S−O/C−O Bond Oxidants. Adv Synth Catal 2020. [DOI: 10.1002/adsc.202000274] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Sabyasachi Bhunia
- Department of Chemistry Central University of Jharkhand Ranchi Jharkhand 835205 India
| | - Partha Ghosh
- Department of Chemistry Central University of Jharkhand Ranchi Jharkhand 835205 India
| | - Snigdha Rani Patra
- Department of Chemistry Central University of Jharkhand Ranchi Jharkhand 835205 India
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13
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Brahmachari G, Nayek N, Karmakar I, Nurjamal K, Chandra SK, Bhowmick A. Series of Functionalized 5-(2-Arylimidazo[1,2- a]pyridin-3-yl)pyrimidine-2,4(1 H,3 H)-diones: A Water-Mediated Three-Component Catalyst-Free Protocol Revisited. J Org Chem 2020; 85:8405-8414. [PMID: 32469216 DOI: 10.1021/acs.joc.0c00732] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
A water-mediated and catalyst-free practical method for the synthesis of a new series of pharmaceutically interesting functionalized 5-(2-arylimidazo[1,2-a]pyridin-3-yl)pyrimidine-2,4(1H,3H)-diones has been accomplished based on a one-pot multicomponent reaction between arylglyoxal monohydrates, 2-aminopyridines/2-aminopyrimidine, and barbituric/N,N-dimethylbarbituric acids under reflux conditions. The salient features of this protocol are avoidance of any additive/catalyst and toxic organic solvents, use of water as reaction medium, clean reaction profiles, operational simplicity, ease of product isolation/purification without the aid of tedious column chromatography, good to excellent yields, and high atom-economy and low E-factor.
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Affiliation(s)
- Goutam Brahmachari
- Laboratory of Natural Products & Organic Synthesis, Department of Chemistry, Visva-Bharati (A Central University), Santiniketan 731 235, West Bengal, India
| | - Nayana Nayek
- Laboratory of Natural Products & Organic Synthesis, Department of Chemistry, Visva-Bharati (A Central University), Santiniketan 731 235, West Bengal, India
| | - Indrajit Karmakar
- Laboratory of Natural Products & Organic Synthesis, Department of Chemistry, Visva-Bharati (A Central University), Santiniketan 731 235, West Bengal, India
| | - Khondekar Nurjamal
- Laboratory of Natural Products & Organic Synthesis, Department of Chemistry, Visva-Bharati (A Central University), Santiniketan 731 235, West Bengal, India
| | - Swapan K Chandra
- Department of Chemistry, Visva-Bharati (A Central University), Santiniketan 731 235, West Bengal, India
| | - Anindita Bhowmick
- Laboratory of Natural Products & Organic Synthesis, Department of Chemistry, Visva-Bharati (A Central University), Santiniketan 731 235, West Bengal, India
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14
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Ashok D, Ram Reddy M, Ramakrishna K, Nagaraju N, Dharavath R, Sarasija M. Iodine mediated synthesis of some new imidazo[1,2‐a]pyridine derivatives and evaluation of their antimicrobial activity. J Heterocycl Chem 2020. [DOI: 10.1002/jhet.3967] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Dongamanti Ashok
- Green and Medicinal Chemistry Laboratory, Department of ChemistryOsmania University Hyderabad Telangana India
| | - M. Ram Reddy
- Green and Medicinal Chemistry Laboratory, Department of ChemistryOsmania University Hyderabad Telangana India
| | - Katta Ramakrishna
- Green and Medicinal Chemistry Laboratory, Department of ChemistryOsmania University Hyderabad Telangana India
| | - Nalaparaju Nagaraju
- Green and Medicinal Chemistry Laboratory, Department of ChemistryOsmania University Hyderabad Telangana India
| | - Ravinder Dharavath
- Green and Medicinal Chemistry Laboratory, Department of ChemistryOsmania University Hyderabad Telangana India
| | - Madderla Sarasija
- Department of ChemistrySatavahana University Karimnagar Telangana India
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15
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Dubovtsev AY, Dar'in DV, Kukushkin VY. Three‐Component [2+2+1] Gold(I)‐Catalyzed Oxidative Generation of Fully Substituted 1,3‐Oxazoles Involving Internal Alkynes. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201900097] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Alexey Yu. Dubovtsev
- Saint Petersburg State University Universitetskaya Nab. 7/9 199034 Saint Petersburg Russian Federation
| | - Dmitry V. Dar'in
- Saint Petersburg State University Universitetskaya Nab. 7/9 199034 Saint Petersburg Russian Federation
| | - Vadim Yu. Kukushkin
- Saint Petersburg State University Universitetskaya Nab. 7/9 199034 Saint Petersburg Russian Federation
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16
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One-Pot NBS-Promoted Synthesis of Imidazoles and Thiazoles from Ethylarenes in Water. Molecules 2019; 24:molecules24050893. [PMID: 30836604 PMCID: PMC6429224 DOI: 10.3390/molecules24050893] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2019] [Revised: 02/22/2019] [Accepted: 02/26/2019] [Indexed: 11/16/2022] Open
Abstract
A facile and eco-friendly method has been developed for the synthesis of imidazoles and thiazoles from ethylarenes in water. The reaction proceeds via in situ formation of α-bromoketone using NBS as a bromine source as well as an oxidant, followed by trapping with suitable nucleophiles to provide the corresponding products in good yields under metal-free conditions.
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17
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Liao Y, Huang B, Huang X, Cai M. Heterogeneous Copper-Catalyzed Cascade Three-Component Reaction Towards Imidazo[1,2-a]pyridines: Efficient and Practical One-Pot Synthesis of Alpidem. ChemistrySelect 2019. [DOI: 10.1002/slct.201900128] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Yang Liao
- Key Laboratory of Functional Small Organic Molecule; Ministry of Education and College of Chemistry & Chemical Engineering; Jiangxi Normal University; Nanchang 330022 China
| | - Bin Huang
- Key Laboratory of Functional Small Organic Molecule; Ministry of Education and College of Chemistry & Chemical Engineering; Jiangxi Normal University; Nanchang 330022 China
| | - Xue Huang
- Key Laboratory of Functional Small Organic Molecule; Ministry of Education and College of Chemistry & Chemical Engineering; Jiangxi Normal University; Nanchang 330022 China
| | - Mingzhong Cai
- Key Laboratory of Functional Small Organic Molecule; Ministry of Education and College of Chemistry & Chemical Engineering; Jiangxi Normal University; Nanchang 330022 China
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18
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Qiao J, Jia X, Li P, Liu X, Zhao J, Zhou Y, Wang J, Liu H, Zhao F. Gold‐catalyzed Rapid Construction of Nitrogen‐containing Heterocyclic Compound Library with Scaffold Diversity and Molecular Complexity. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201801494] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Jin Qiao
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province, Sichuan Industrial Institute of AntibioticsChengdu University 168 Hua Guan Road Chengdu 610052 People's Republic of China
| | - Xiuwen Jia
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province, Sichuan Industrial Institute of AntibioticsChengdu University 168 Hua Guan Road Chengdu 610052 People's Republic of China
| | - Pinyi Li
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province, Sichuan Industrial Institute of AntibioticsChengdu University 168 Hua Guan Road Chengdu 610052 People's Republic of China
| | - Xiaoyan Liu
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province, Sichuan Industrial Institute of AntibioticsChengdu University 168 Hua Guan Road Chengdu 610052 People's Republic of China
| | - Jingwei Zhao
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province, Sichuan Industrial Institute of AntibioticsChengdu University 168 Hua Guan Road Chengdu 610052 People's Republic of China
| | - Yu Zhou
- State Key Laboratory of Drug Research and CAS Key Laboratory of Receptor Research, Shanghai Institute of Materia MedicaChinese Academy of Sciences 555 Zuchongzhi Road Shanghai 201203 People's Republic of China
- University of Chinese Academy of Sciences No.19 A Yuquan Road Beijing 100049 People's Republic of China
| | - Jiang Wang
- State Key Laboratory of Drug Research and CAS Key Laboratory of Receptor Research, Shanghai Institute of Materia MedicaChinese Academy of Sciences 555 Zuchongzhi Road Shanghai 201203 People's Republic of China
- University of Chinese Academy of Sciences No.19 A Yuquan Road Beijing 100049 People's Republic of China
| | - Hong Liu
- State Key Laboratory of Drug Research and CAS Key Laboratory of Receptor Research, Shanghai Institute of Materia MedicaChinese Academy of Sciences 555 Zuchongzhi Road Shanghai 201203 People's Republic of China
- University of Chinese Academy of Sciences No.19 A Yuquan Road Beijing 100049 People's Republic of China
| | - Fei Zhao
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province, Sichuan Industrial Institute of AntibioticsChengdu University 168 Hua Guan Road Chengdu 610052 People's Republic of China
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19
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Min XL, Sun C, He Y. Synthesis of 1-Amino-2H-quinolizin-2-one Scaffolds by Tandem Silver Catalysis. Org Lett 2019; 21:724-728. [DOI: 10.1021/acs.orglett.8b03935] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Xiao-Long Min
- School of Chemical Engineering, Nanjing University of Science & Technology, Nanjing, 210094, China
| | - Chao Sun
- School of Chemical Engineering, Nanjing University of Science & Technology, Nanjing, 210094, China
| | - Ying He
- School of Chemical Engineering, Nanjing University of Science & Technology, Nanjing, 210094, China
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20
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Hamada N, Yamaguchi A, Inuki S, Oishi S, Ohno H. Gold(I)-Catalyzed Oxidative Cascade Cyclization of 1,4-Diyn-3-ones for the Construction of Tropone-Fused Furan Scaffolds. Org Lett 2018; 20:4401-4405. [DOI: 10.1021/acs.orglett.8b01524] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Naoka Hamada
- Graduate School of Pharmaceutical Sciences, Kyoto University, Sakyo-ku, Kyoto 606-8501, Japan
| | - Ayuta Yamaguchi
- Graduate School of Pharmaceutical Sciences, Kyoto University, Sakyo-ku, Kyoto 606-8501, Japan
| | - Shinsuke Inuki
- Graduate School of Pharmaceutical Sciences, Kyoto University, Sakyo-ku, Kyoto 606-8501, Japan
| | - Shinya Oishi
- Graduate School of Pharmaceutical Sciences, Kyoto University, Sakyo-ku, Kyoto 606-8501, Japan
| | - Hiroaki Ohno
- Graduate School of Pharmaceutical Sciences, Kyoto University, Sakyo-ku, Kyoto 606-8501, Japan
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21
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Qin M, Tian Y, Guo X, Yuan X, Yang X, Chen B. I 2
/TBPB Mediated Oxidative Reaction to Construct of Imidazo[1,5-α]pyridines under Metal-Free Conditions. ASIAN J ORG CHEM 2018. [DOI: 10.1002/ajoc.201800285] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Mingda Qin
- State Key Laboratory of Applied Organic Chemistry; Lanzhou University; Lanzhou 730000 China
| | - Yuan Tian
- State Key Laboratory of Applied Organic Chemistry; Lanzhou University; Lanzhou 730000 China
| | - Xin Guo
- State Key Laboratory of Applied Organic Chemistry; Lanzhou University; Lanzhou 730000 China
| | - Xinglong Yuan
- State Key Laboratory of Applied Organic Chemistry; Lanzhou University; Lanzhou 730000 China
| | - Xueying Yang
- State Key Laboratory of Applied Organic Chemistry; Lanzhou University; Lanzhou 730000 China
| | - Baohua Chen
- State Key Laboratory of Applied Organic Chemistry; Lanzhou University; Lanzhou 730000 China
- Zhongwei High-tech Institute of Lanzhou University; Zhongwei Ningxia 755500 China
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22
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Reynoso Lara JE, Salgado-Zamora H, Bazin MA, Campos-Aldrete ME, Marchand P. Design and Synthesis of Imidazo[1,2-a
]pyridines with Carboxamide Group Substitution and In silico
Evaluation of their Interaction with a LuxR-type Quorum Sensing Receptor. J Heterocycl Chem 2018. [DOI: 10.1002/jhet.3140] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Juan Emmanuel Reynoso Lara
- Departamento de Química Orgánica, Escuela Nacional de Ciencias Biológicas; Instituto Politécnico Nacional; CDMX Mexico
| | - Héctor Salgado-Zamora
- Departamento de Química Orgánica, Escuela Nacional de Ciencias Biológicas; Instituto Politécnico Nacional; CDMX Mexico
| | - Marc-Antoine Bazin
- Département de Chimie Thérapeutique; EA1155 - IICiMed, Institut de Recherche en Santé 2, Université de Nantes, Nantes Atlantique Universités; Nantes France
| | - María Elena Campos-Aldrete
- Departamento de Química Orgánica, Escuela Nacional de Ciencias Biológicas; Instituto Politécnico Nacional; CDMX Mexico
| | - Pascal Marchand
- Département de Chimie Thérapeutique; EA1155 - IICiMed, Institut de Recherche en Santé 2, Université de Nantes, Nantes Atlantique Universités; Nantes France
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23
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Ramya PS, Angapelly S, Digwal CS, Yadav U, Babu BN, Kamal A. An efficient RuCl 3 ·H 2 O/I 2 catalytic system: A facile access to 3-aroylimidazo[1,2- a ]pyridines from 2-aminopyridines and chalcones. JOURNAL OF SAUDI CHEMICAL SOCIETY 2018. [DOI: 10.1016/j.jscs.2017.07.007] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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24
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Zeng X, Lu Z, Liu S, Hammond GB, Xu B. Gold-catalyzed Fluorination of Alkynyl Esters and Ketones: Efficient Access to Fluorinated 1,3-Dicarbonyl Compounds. Adv Synth Catal 2017; 359:4062-4066. [PMID: 29483850 PMCID: PMC5824727 DOI: 10.1002/adsc.201701179] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
We developed an efficient synthesis of 2-fluoro-1,3-dicarbonyl compounds using readily available alkynyl ketones or esters as starting material. The key step is the insertion of hydrogen fluoride (HF) to the gold carbene intermediate generated from cationic gold catalyzed addition of N-oxides to alkynyl ketones or esters. This method gives excellent chemical yields and regioselectivity with good functional group tolerance.
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Affiliation(s)
- Xiaojun Zeng
- College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, 2999 North Renmin Lu, Shanghai 201620, China
| | - Zhichao Lu
- Department of Chemistry, University of Louisville, Louisville, KY 40292, USA
| | - Shiwen Liu
- College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, 2999 North Renmin Lu, Shanghai 201620, China
| | - Gerald B Hammond
- Department of Chemistry, University of Louisville, Louisville, KY 40292, USA
| | - Bo Xu
- College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, 2999 North Renmin Lu, Shanghai 201620, China
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25
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Zeng X, Liu S, Hammond GB, Xu B. Divergent Regio- and Stereoselective Gold-catalyzed Synthesis of α-Fluorosulfones and β-Fluorovinylsulfones from Alkynylsulfones. Chemistry 2017; 23:11977-11981. [PMID: 28736856 DOI: 10.1002/chem.201703179] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2017] [Indexed: 11/08/2022]
Abstract
We developed a widely applicable, highly efficient synthesis of α-fluorosulfone and β-fluorovinylsulfone catalyzed by gold. Starting with alkynyl sulfone 1, an [Au]/HF/N-oxide system gives α-fluorosulfone 3 via a gold carbene intermediate, and, if no N-oxide is used, direct addition of HF to 1 gives vinyl sulfone 4 via a vinylfluoro gold intermediate. Both methods have good functional group tolerance and the reactions can be conducted in ambient atmosphere.
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Affiliation(s)
- Xiaojun Zeng
- College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai, 201620, P. R. China
| | - Shiwen Liu
- College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai, 201620, P. R. China
| | - Gerald B Hammond
- Department of Chemistry, University of Louisville, Louisville, KY, 40292, USA
| | - Bo Xu
- College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai, 201620, P. R. China
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26
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Dwivedi V, Kumar R, Sharma K, Sridhar B, Reddy MS. Copper-Promoted Regioselective Intermolecular Diamination of Ynamides: Synthesis of Imidazo[1,2- a]pyridines. ACS OMEGA 2017; 2:2770-2777. [PMID: 31457615 PMCID: PMC6641143 DOI: 10.1021/acsomega.7b00426] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/10/2017] [Accepted: 06/05/2017] [Indexed: 06/10/2023]
Abstract
A facile access to 3-heterosubstituted (3-oxazolidinonyl/indolyl/phenoxy) imidazo[1,2-a]pyridines from readily available 2-aminopyridines and electron-rich (internally activated) alkynes like ynamides/ynamines/ynol ethers is achieved via Cu(OTf)2-mediated intermolecular diamination under aerobic conditions. The reaction is highly regioselective, owing to internal electron bias, and thus led to a single regioisomer with heterosubstitution at C3.
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Affiliation(s)
- Vikas Dwivedi
- Medicinal
& Process Chemistry Division, CSIR-Central
Drug Research Institute, Sector 10, Jankipuram Extn, Sitapur Road, Lucknow 226031, India
| | - Ravi Kumar
- Medicinal
& Process Chemistry Division, CSIR-Central
Drug Research Institute, Sector 10, Jankipuram Extn, Sitapur Road, Lucknow 226031, India
- Academy
of Scientific and Innovative Research, New Delhi 110001, India
| | - Kavita Sharma
- National
Institute of Pharmaceutical Education and Research, Raebareli 229010, India
| | - Balasubramanian Sridhar
- X-Ray Crystallography Division and MCB Division, CSIR-IICT, Tarnaka, Hyderabad 500007, India
| | - Maddi Sridhar Reddy
- Medicinal
& Process Chemistry Division, CSIR-Central
Drug Research Institute, Sector 10, Jankipuram Extn, Sitapur Road, Lucknow 226031, India
- X-Ray Crystallography Division and MCB Division, CSIR-IICT, Tarnaka, Hyderabad 500007, India
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27
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Cyclometallierte AuIII
-Komplexe: Synthese, Reaktivität und physikalisch-chemische Eigenschaften. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201607225] [Citation(s) in RCA: 49] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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28
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Kumar R, Nevado C. Cyclometalated Gold(III) Complexes: Synthesis, Reactivity, and Physicochemical Properties. Angew Chem Int Ed Engl 2017; 56:1994-2015. [DOI: 10.1002/anie.201607225] [Citation(s) in RCA: 128] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2016] [Revised: 09/21/2016] [Indexed: 11/08/2022]
Affiliation(s)
- Roopender Kumar
- Department of Chemistry; University of Zürich; Winterthurerstrasse 180 CH-8057 Switzerland
| | - Cristina Nevado
- Department of Chemistry; University of Zürich; Winterthurerstrasse 180 CH-8057 Switzerland
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29
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Roslan II, Chuah GK, Jaenicke S. Switching of Regioselectivity in a Perfluorohexyl Iodide Mediated Synthesis of Phenylimidazo[1,2-a]pyridines. European J Org Chem 2017. [DOI: 10.1002/ejoc.201601586] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Irwan Iskandar Roslan
- Department of Chemistry; National University of Singapore; 3 Science Drive 3 117543 Singapore
| | - Gaik-Khuan Chuah
- Department of Chemistry; National University of Singapore; 3 Science Drive 3 117543 Singapore
| | - Stephan Jaenicke
- Department of Chemistry; National University of Singapore; 3 Science Drive 3 117543 Singapore
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30
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Rasheed S, Rao DN, Das P. Cobalt(II)-Catalyzed C−N Bond Formation: Synthesis of Aryl-Substituted Imidazo[1,2-a]pyridines. ASIAN J ORG CHEM 2016. [DOI: 10.1002/ajoc.201600326] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Sk. Rasheed
- Medicinal Chemistry Division; CSIR-Indian Institute of Integrative Medicine; Canal Road Jammu- 180001 India
- Academy of Scientific and Innovative Research (AcSIR); New Delhi- 110025 India
| | - Desaboini Nageswar Rao
- Medicinal Chemistry Division; CSIR-Indian Institute of Integrative Medicine; Canal Road Jammu- 180001 India
- Academy of Scientific and Innovative Research (AcSIR); New Delhi- 110025 India
| | - Parthasarathi Das
- Medicinal Chemistry Division; CSIR-Indian Institute of Integrative Medicine; Canal Road Jammu- 180001 India
- Academy of Scientific and Innovative Research (AcSIR); New Delhi- 110025 India
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31
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Zhang Y, Xue Y, Li G, Yuan H, Luo T. Enantioselective synthesis of Iboga alkaloids and vinblastine via rearrangements of quaternary ammoniums. Chem Sci 2016; 7:5530-5536. [PMID: 30034694 PMCID: PMC6021789 DOI: 10.1039/c6sc00932h] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2016] [Accepted: 05/13/2016] [Indexed: 11/21/2022] Open
Abstract
An efficient and novel strategy for the enantioselective syntheses of various iboga alkaloids has been developed. The salient features include a gold-catalyzed oxidation of a terminal alkyne followed by cyclization, a Stevens rearrangement and a tandem sequence that combines the gold-catalyzed oxidation, cyclization and [1,2]-shift. The catharanthine analogs provided by our approach were further converted to the vinca alkaloid vinblastine and its analogs, which confirmed the remarkable sensitivity of the cytotoxicity to the C20' substituent of vinblastine.
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Affiliation(s)
- Yun Zhang
- Laboratory of Chemical Genomics , School of Chemical Biology and Biotechnology , Peking University Shenzhen Graduate School , Shenzhen 518055 , China
| | - Yibin Xue
- Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education , Beijing National Laboratory for Molecular Science (BNLMS) , College of Chemistry and Molecular Engineering , Peking-Tsinghua Center for Life Sciences , Academy for Advanced Interdisciplinary Studies , Peking University , Beijing 100871 , China .
| | - Gang Li
- Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education , Beijing National Laboratory for Molecular Science (BNLMS) , College of Chemistry and Molecular Engineering , Peking-Tsinghua Center for Life Sciences , Academy for Advanced Interdisciplinary Studies , Peking University , Beijing 100871 , China .
| | - Haosen Yuan
- Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education , Beijing National Laboratory for Molecular Science (BNLMS) , College of Chemistry and Molecular Engineering , Peking-Tsinghua Center for Life Sciences , Academy for Advanced Interdisciplinary Studies , Peking University , Beijing 100871 , China .
| | - Tuoping Luo
- Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education , Beijing National Laboratory for Molecular Science (BNLMS) , College of Chemistry and Molecular Engineering , Peking-Tsinghua Center for Life Sciences , Academy for Advanced Interdisciplinary Studies , Peking University , Beijing 100871 , China .
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32
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Zeng X, Liu S, Shi Z, Liu G, Xu B. Synthesis of α-Fluoroketones by Insertion of HF into a Gold Carbene. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201603914] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Xiaojun Zeng
- College of Chemistry, Chemical Engineering and Biotechnology; Donghua University; 2999 North Renmin Lu Shanghai 201620 China
| | - Shiwen Liu
- College of Chemistry, Chemical Engineering and Biotechnology; Donghua University; 2999 North Renmin Lu Shanghai 201620 China
| | - Zhenyu Shi
- College of Chemistry, Chemical Engineering and Biotechnology; Donghua University; 2999 North Renmin Lu Shanghai 201620 China
| | - Guangchang Liu
- College of Chemistry, Chemical Engineering and Biotechnology; Donghua University; 2999 North Renmin Lu Shanghai 201620 China
| | - Bo Xu
- College of Chemistry, Chemical Engineering and Biotechnology; Donghua University; 2999 North Renmin Lu Shanghai 201620 China
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33
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Zeng X, Liu S, Shi Z, Liu G, Xu B. Synthesis of α-Fluoroketones by Insertion of HF into a Gold Carbene. Angew Chem Int Ed Engl 2016; 55:10032-6. [DOI: 10.1002/anie.201603914] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2016] [Revised: 06/12/2016] [Indexed: 11/11/2022]
Affiliation(s)
- Xiaojun Zeng
- College of Chemistry, Chemical Engineering and Biotechnology; Donghua University; 2999 North Renmin Lu Shanghai 201620 China
| | - Shiwen Liu
- College of Chemistry, Chemical Engineering and Biotechnology; Donghua University; 2999 North Renmin Lu Shanghai 201620 China
| | - Zhenyu Shi
- College of Chemistry, Chemical Engineering and Biotechnology; Donghua University; 2999 North Renmin Lu Shanghai 201620 China
| | - Guangchang Liu
- College of Chemistry, Chemical Engineering and Biotechnology; Donghua University; 2999 North Renmin Lu Shanghai 201620 China
| | - Bo Xu
- College of Chemistry, Chemical Engineering and Biotechnology; Donghua University; 2999 North Renmin Lu Shanghai 201620 China
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34
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The chemistry of the carbon-transition metal double and triple bond: Annual survey covering the year 2014. Coord Chem Rev 2016. [DOI: 10.1016/j.ccr.2015.09.012] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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35
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Reddy KR, Gupta AP, Das P. Metal-Free Aminooxygenation of Alkynes: Efficient Synthesis of 3-Aroylimidazo[1,2-a]-N-Heterocycles. ASIAN J ORG CHEM 2016. [DOI: 10.1002/ajoc.201600120] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- K. Ranjith Reddy
- Academy of Scientific and Innovative Research (AcSIR); New Delhi 110020
| | - Ajai Prakash Gupta
- Quality Control and Quality Assurance (QC & QA); Indian Institute of Integrative Medicine (IIIM); Jammu 180001 India
| | - Parthasarathi Das
- Academy of Scientific and Innovative Research (AcSIR); New Delhi 110020
- Indian Institute of Integrative medicine; Jammu 180001 India
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36
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Huo C, Tang J, Xie H, Wang Y, Dong J. CBr4 Mediated Oxidative C–N Bond Formation: Applied in the Synthesis of Imidazo[1,2-α]pyridines and Imidazo[1,2-α]pyrimidines. Org Lett 2016; 18:1016-9. [DOI: 10.1021/acs.orglett.6b00137] [Citation(s) in RCA: 70] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Congde Huo
- Key Laboratory
of Eco-Environment-Related
Polymer Materials Ministry of Education, College of Chemistry and
Chemical Engineering, Northwest Normal University, Lanzhou, Gansu 730070, China
| | - Jing Tang
- Key Laboratory
of Eco-Environment-Related
Polymer Materials Ministry of Education, College of Chemistry and
Chemical Engineering, Northwest Normal University, Lanzhou, Gansu 730070, China
| | - Haisheng Xie
- Key Laboratory
of Eco-Environment-Related
Polymer Materials Ministry of Education, College of Chemistry and
Chemical Engineering, Northwest Normal University, Lanzhou, Gansu 730070, China
| | - Yajun Wang
- Key Laboratory
of Eco-Environment-Related
Polymer Materials Ministry of Education, College of Chemistry and
Chemical Engineering, Northwest Normal University, Lanzhou, Gansu 730070, China
| | - Jie Dong
- Key Laboratory
of Eco-Environment-Related
Polymer Materials Ministry of Education, College of Chemistry and
Chemical Engineering, Northwest Normal University, Lanzhou, Gansu 730070, China
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37
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Zhang X, Geng Z. Mechanism of the gold(i)-catalyzed synthesis of imidazo-pyrimidines and imidazo-pyrazines via [3 + 2] dipolar cycloaddition: a DFT study. RSC Adv 2016. [DOI: 10.1039/c6ra07780c] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
The mechanisms of gold(i)-catalyzed [3 + 2] cycloaddition reactions of pyridinium N-(heteroaryl)-aminides with alkynes have been investigated using DFT calculations.
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Affiliation(s)
- Xinghui Zhang
- College of Chemical Engineering
- Lanzhou University of Arts and Science
- Lanzhou
- P.R. China
| | - Zhiyuan Geng
- Gansu Key Laboratory of Polymer Materials
- College of Chemistry and Chemical Engineering
- Key Laboratory of Eco-environment-related Polymer Materials
- Ministry of Education
- Northwest Normal University
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38
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Zali-Boeini H, Norastehfar N, Amiri Rudbari H. One-step synthesis of imidazo[1,2-a]pyridines in water. RSC Adv 2016. [DOI: 10.1039/c6ra17065j] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
A novel efficient and convenient synthesis of imidazo[1,2-a]pyridines in water has been developed.
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39
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Chen M, Sun N, Xu W, Zhao J, Wang G, Liu Y. Gold-Catalyzed Ring Expansion of Alkynyl Heterocycles through 1,2-Migration of an Endocyclic Carbon-Heteroatom Bond. Chemistry 2015; 21:18571-5. [PMID: 26490371 DOI: 10.1002/chem.201504165] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2015] [Indexed: 11/08/2022]
Abstract
A mild and efficient gold-catalyzed oxidative ring-expansion of a series of alkynyl heterocycles using pyridine-N-oxide as the oxidant has been developed, which affords highly valuable six- or seven-membered heterocycles with wide functional group toleration. The reaction consists of a regioselective oxidation and a chemoselective migration of an endocyclic carbon-heteroatom bond (favored over C-H migration) with the order of migratory aptitude for carbon-heteroatom bonds being C-S>C-N>C-O. In the absence of an oxidant, polycyclic products are readily constructed through a ring-expansion/Nazarov cyclization reaction sequence.
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Affiliation(s)
- Ming Chen
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032 (P. R. China)
| | - Ning Sun
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032 (P. R. China)
| | - Wei Xu
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032 (P. R. China)
| | - Jidong Zhao
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032 (P. R. China)
| | - Gaonan Wang
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032 (P. R. China)
| | - Yuanhong Liu
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032 (P. R. China).
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40
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Qin C, Su Y, Shen T, Shi X, Jiao N. Splitting a Substrate into Three Parts: Gold-Catalyzed Nitrogenation of Alkynes by CC and CC Bond Cleavage. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201508347] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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41
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Qin C, Su Y, Shen T, Shi X, Jiao N. Splitting a Substrate into Three Parts: Gold-Catalyzed Nitrogenation of Alkynes by C-C and C≡C Bond Cleavage. Angew Chem Int Ed Engl 2015; 55:350-4. [PMID: 26494539 DOI: 10.1002/anie.201508347] [Citation(s) in RCA: 65] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2015] [Indexed: 12/16/2022]
Abstract
A gold-catalyzed nitrogenation of alkynes for the synthesis of carbamides and amino tetrazoles through C-C and C≡C bond cleavages is described. A diverse set of functionalized carbamide and amino tetrazole derivatives were selectively constructed under mild conditions. The chemoselectivity can be easily switched by the selection of the acid additives. The reaction is characterized by its broad substrate scope, direct construction of high value products, easy operation under air, and mild conditions at room temperature. This chemistry provides a way to transform alkynes by splitting the substrate into three parts.
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Affiliation(s)
- Chong Qin
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Xue Yuan Rd. 38, Beijing 100191 (China)
| | - Yijin Su
- Department of Chemistry, University of South Florida, Tampa, FL 33620 (USA)
| | - Tao Shen
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Xue Yuan Rd. 38, Beijing 100191 (China)
| | - Xiaodong Shi
- Department of Chemistry, University of South Florida, Tampa, FL 33620 (USA).
| | - Ning Jiao
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Xue Yuan Rd. 38, Beijing 100191 (China). .,State Key Laboratory of Organometallic Chemistry, Chinese Academy of Sciences, Shanghai 200032 (China).
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42
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Pan F, Shu C, Ping YF, Pan YF, Ruan PP, Fei QR, Ye LW. Synthesis of α,β-Unsaturated N-Sulfonyl Imides through Zinc-Catalyzed Intermolecular Oxidation of N-Sulfonyl Ynamides. J Org Chem 2015; 80:10009-15. [PMID: 26422641 DOI: 10.1021/acs.joc.5b01608] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
A novel zinc-catalyzed intermolecular oxidation of N-sulfonyl ynamides has been developed. A variety of functionalized α,β-unsaturated N-sulfonyl imides are readily accessed by utilizing this approach, thus providing a viable alternative to synthetically useful α,β-unsaturated imides. Importantly, the reaction is proposed to proceed by a vinyligous E2-type elimination pathway, but not metal carbene pathway.
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Affiliation(s)
- Fei Pan
- State Key Laboratory of Physical Chemistry of Solid Surfaces & The Key Laboratory for Chemical Biology of Fujian Province, Department of Chemistry, Xiamen University , Xiamen 361005, P. R. China
| | - Chao Shu
- State Key Laboratory of Physical Chemistry of Solid Surfaces & The Key Laboratory for Chemical Biology of Fujian Province, Department of Chemistry, Xiamen University , Xiamen 361005, P. R. China
| | - Yi-Fan Ping
- State Key Laboratory of Physical Chemistry of Solid Surfaces & The Key Laboratory for Chemical Biology of Fujian Province, Department of Chemistry, Xiamen University , Xiamen 361005, P. R. China
| | - Yi-Fei Pan
- State Key Laboratory of Physical Chemistry of Solid Surfaces & The Key Laboratory for Chemical Biology of Fujian Province, Department of Chemistry, Xiamen University , Xiamen 361005, P. R. China
| | - Peng-Peng Ruan
- State Key Laboratory of Physical Chemistry of Solid Surfaces & The Key Laboratory for Chemical Biology of Fujian Province, Department of Chemistry, Xiamen University , Xiamen 361005, P. R. China
| | - Qian-Ran Fei
- State Key Laboratory of Physical Chemistry of Solid Surfaces & The Key Laboratory for Chemical Biology of Fujian Province, Department of Chemistry, Xiamen University , Xiamen 361005, P. R. China
| | - Long-Wu Ye
- State Key Laboratory of Physical Chemistry of Solid Surfaces & The Key Laboratory for Chemical Biology of Fujian Province, Department of Chemistry, Xiamen University , Xiamen 361005, P. R. China.,State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences , Shanghai 200032, P. R. China
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43
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Xiao X, Xie Y, Bai S, Deng Y, Jiang H, Zeng W. Transition-Metal-Free Tandem Chlorocyclization of Amines with Carboxylic Acids: Access to Chloroimidazo[1,2-α]pyridines. Org Lett 2015; 17:3998-4001. [DOI: 10.1021/acs.orglett.5b01868] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Xinsheng Xiao
- School of Chemistry and Chemical
Engineering, South China University of Technology, Guangzhou 510641, China
| | - Ying Xie
- School of Chemistry and Chemical
Engineering, South China University of Technology, Guangzhou 510641, China
| | - Siyi Bai
- School of Chemistry and Chemical
Engineering, South China University of Technology, Guangzhou 510641, China
| | - Yuanfu Deng
- School of Chemistry and Chemical
Engineering, South China University of Technology, Guangzhou 510641, China
| | - Huanfeng Jiang
- School of Chemistry and Chemical
Engineering, South China University of Technology, Guangzhou 510641, China
| | - Wei Zeng
- School of Chemistry and Chemical
Engineering, South China University of Technology, Guangzhou 510641, China
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44
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Davies PW, Garzón M. Nucleophilic Nitrenoids Through π-Acid Catalysis: Providing a Common Basis for Rapid Access into Diverse Nitrogen Heterocycles. ASIAN J ORG CHEM 2015. [DOI: 10.1002/ajoc.201500170] [Citation(s) in RCA: 93] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Paul W. Davies
- School of Chemistry; University of Birmingham; Edgbaston, Birmingham B15 2TT UK
| | - Miguel Garzón
- School of Chemistry; University of Birmingham; Edgbaston, Birmingham B15 2TT UK
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45
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Li L, Zhou B, Wang YH, Shu C, Pan YF, Lu X, Ye LW. Zinc-Catalyzed Alkyne Oxidation/C-H Functionalization: Highly Site-Selective Synthesis of Versatile Isoquinolones and β-Carbolines. Angew Chem Int Ed Engl 2015; 54:8245-9. [PMID: 26013998 DOI: 10.1002/anie.201502553] [Citation(s) in RCA: 142] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2015] [Indexed: 01/13/2023]
Abstract
An efficient zinc(II)-catalyzed alkyne oxidation/C-H functionalization sequence was developed, thus leading to highly site-selective synthesis of a variety of isoquinolones and β-carbolines. Importantly, in contrast to the well-established gold-catalyzed intermolecular alkyne oxidation, over-oxidation can be completely suppressed in this system and the reaction most likely proceeds by a Friedel-Crafts-type pathway. Mechanistic studies and theoretical calculations are described.
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Affiliation(s)
- Long Li
- State Key Laboratory for Physical Chemistry of Solid Surfaces & The Key Laboratory for Chemical Biology of Fujian Province, Department of Chemistry, Xiamen University, Xiamen 361005 (China)
| | - Bo Zhou
- State Key Laboratory for Physical Chemistry of Solid Surfaces & The Key Laboratory for Chemical Biology of Fujian Province, Department of Chemistry, Xiamen University, Xiamen 361005 (China)
| | - Yong-Heng Wang
- State Key Laboratory of Physical Chemistry of Solid Surfaces & Center for Theoretical Chemistry, Department of Chemistry, Xiamen University, Xiamen 361005 (China)
| | - Chao Shu
- State Key Laboratory for Physical Chemistry of Solid Surfaces & The Key Laboratory for Chemical Biology of Fujian Province, Department of Chemistry, Xiamen University, Xiamen 361005 (China)
| | - Yi-Fei Pan
- State Key Laboratory for Physical Chemistry of Solid Surfaces & The Key Laboratory for Chemical Biology of Fujian Province, Department of Chemistry, Xiamen University, Xiamen 361005 (China)
| | - Xin Lu
- State Key Laboratory of Physical Chemistry of Solid Surfaces & Center for Theoretical Chemistry, Department of Chemistry, Xiamen University, Xiamen 361005 (China).
| | - Long-Wu Ye
- State Key Laboratory for Physical Chemistry of Solid Surfaces & The Key Laboratory for Chemical Biology of Fujian Province, Department of Chemistry, Xiamen University, Xiamen 361005 (China).
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46
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Li L, Zhou B, Wang YH, Shu C, Pan YF, Lu X, Ye LW. Zinc-Catalyzed Alkyne Oxidation/CH Functionalization: Highly Site-Selective Synthesis of Versatile Isoquinolones and β-Carbolines. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201502553] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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47
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Zhou AH, He Q, Shu C, Yu YF, Liu S, Zhao T, Zhang W, Lu X, Ye LW. Atom-economic generation of gold carbenes: gold-catalyzed formal [3+2] cycloaddition between ynamides and isoxazoles. Chem Sci 2015; 6:1265-1271. [PMID: 29560212 PMCID: PMC5811108 DOI: 10.1039/c4sc02596b] [Citation(s) in RCA: 230] [Impact Index Per Article: 25.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2014] [Accepted: 11/12/2014] [Indexed: 12/21/2022] Open
Abstract
The generation of gold carbenes via the gold-catalyzed intermolecular reaction of nucleophiles containing relatively labile N-O or N-N bonds with alkynes has received considerable attention during recent years. However, this protocol is not atom-economic as the reaction produces a stoichiometric amount of pyridine or quinoline waste, the cleaved part of the N-O or N-N bonds. In this article, we disclose an unprecedented gold-catalyzed formal [3+2] cycloaddition between ynamides and isoxazoles, allowing rapid and practical access to a wide range of synthetically-useful 2-aminopyrroles. Most importantly, mechanistic studies and theoretical calculations revealed that this reaction presumably proceeds via an α-imino gold carbene pathway, thus providing a strategically novel, atom-economic route to the generation of gold carbenes. Other significant features of this approach include the use of readily-available starting materials, high flexibility, simple procedure, mild reaction conditions, and in particular, no need to exclude moisture or air ("open flask").
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Affiliation(s)
- Ai-Hua Zhou
- State Key Laboratory for Physical Chemistry of Solid Surfaces , The Key Laboratory for Chemical Biology of Fujian Province and Department of Chemistry , College of Chemistry and Chemical Engineering , Xiamen University , Xiamen 361005 , Fujian , P. R. China . ; ; Tel: +86-592-218-5833
| | - Qiao He
- State Key Laboratory of Physical Chemistry of Solid Surfaces , Key Laboratory for Theoretical and Computational Chemistry of Fujian Province and Department of Chemistry , College of Chemistry and Chemical Engineering , Xiamen University , Xiamen , 361005 , Fujian , P. R. China .
| | - Chao Shu
- State Key Laboratory for Physical Chemistry of Solid Surfaces , The Key Laboratory for Chemical Biology of Fujian Province and Department of Chemistry , College of Chemistry and Chemical Engineering , Xiamen University , Xiamen 361005 , Fujian , P. R. China . ; ; Tel: +86-592-218-5833
| | - Yong-Fei Yu
- State Key Laboratory for Physical Chemistry of Solid Surfaces , The Key Laboratory for Chemical Biology of Fujian Province and Department of Chemistry , College of Chemistry and Chemical Engineering , Xiamen University , Xiamen 361005 , Fujian , P. R. China . ; ; Tel: +86-592-218-5833
| | - Shuang Liu
- State Key Laboratory for Physical Chemistry of Solid Surfaces , The Key Laboratory for Chemical Biology of Fujian Province and Department of Chemistry , College of Chemistry and Chemical Engineering , Xiamen University , Xiamen 361005 , Fujian , P. R. China . ; ; Tel: +86-592-218-5833
| | - Tian Zhao
- State Key Laboratory for Physical Chemistry of Solid Surfaces , The Key Laboratory for Chemical Biology of Fujian Province and Department of Chemistry , College of Chemistry and Chemical Engineering , Xiamen University , Xiamen 361005 , Fujian , P. R. China . ; ; Tel: +86-592-218-5833
| | - Wei Zhang
- State Key Laboratory for Physical Chemistry of Solid Surfaces , The Key Laboratory for Chemical Biology of Fujian Province and Department of Chemistry , College of Chemistry and Chemical Engineering , Xiamen University , Xiamen 361005 , Fujian , P. R. China . ; ; Tel: +86-592-218-5833
| | - Xin Lu
- State Key Laboratory of Physical Chemistry of Solid Surfaces , Key Laboratory for Theoretical and Computational Chemistry of Fujian Province and Department of Chemistry , College of Chemistry and Chemical Engineering , Xiamen University , Xiamen , 361005 , Fujian , P. R. China .
| | - Long-Wu Ye
- State Key Laboratory for Physical Chemistry of Solid Surfaces , The Key Laboratory for Chemical Biology of Fujian Province and Department of Chemistry , College of Chemistry and Chemical Engineering , Xiamen University , Xiamen 361005 , Fujian , P. R. China . ; ; Tel: +86-592-218-5833
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48
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Xu Q, Gu P, Wang F, Shi M. Selectfluor promoted NHC–oxazoline gold(i) complex catalyzed cycloaddition/oxidation reaction of enynones with alkenes. Org Chem Front 2015. [DOI: 10.1039/c5qo00155b] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Two kinds of ortho- and meta-oxazoline substituted NHC–gold(i) complexes have been synthesized. These gold complexes could react with Selectfluor to give ionic chelated NHC–oxazoline gold(i) complexes which could smoothly catalyze the cycloaddition/oxidation reaction of enynones with alkene.
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Affiliation(s)
- Qin Xu
- State Key Laboratory of Organometallic Chemistry
- Shanghai Institute of Organic Chemistry
- Chinese Academy of Sciences
- Shanghai 200032
- China
| | - Peng Gu
- State Key Laboratory of Organometallic Chemistry
- Shanghai Institute of Organic Chemistry
- Chinese Academy of Sciences
- Shanghai 200032
- China
| | - Feijun Wang
- State Key Laboratory of Organometallic Chemistry
- Shanghai Institute of Organic Chemistry
- Chinese Academy of Sciences
- Shanghai 200032
- China
| | - Min Shi
- State Key Laboratory of Organometallic Chemistry
- Shanghai Institute of Organic Chemistry
- Chinese Academy of Sciences
- Shanghai 200032
- China
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49
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Manna S, Narayan R, Golz C, Strohmann C, Antonchick AP. Regioselective annulation of nitrosopyridine with alkynes: straightforward synthesis of N-oxide-imidazopyridines. Chem Commun (Camb) 2015; 51:6119-22. [DOI: 10.1039/c5cc00533g] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
We have developed intermolecular annulation of 2-nitrosopyridine derivatives with substituted alkynes for the regioselective access of N-oxide-imidazo[1,2-a]pyridines.
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Affiliation(s)
- Srimanta Manna
- Max-Planck Institute of Molecular Physiology
- Abteilung Chemische Biologie
- Dortmund
- Germany
- Technische Universität Dortmund
| | - Rishikesh Narayan
- Max-Planck Institute of Molecular Physiology
- Abteilung Chemische Biologie
- Dortmund
- Germany
| | - Christopher Golz
- Technische Universität Dortmund
- Fakultät für Chemie und Chemische Biologie
- Anorganische Chemie
- Dortmund
| | - Carsten Strohmann
- Technische Universität Dortmund
- Fakultät für Chemie und Chemische Biologie
- Anorganische Chemie
- Dortmund
| | - Andrey P. Antonchick
- Max-Planck Institute of Molecular Physiology
- Abteilung Chemische Biologie
- Dortmund
- Germany
- Technische Universität Dortmund
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50
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Zhan H, Cao H, Qiu H, Li N, Chen L, Liu J, Cai H, Tan J. Microwave-assisted C–N and C–S bond-forming reactions: an efficient three-component domino sequence for the synthesis of sulfoether-decorated imidazo[1,2-a]pyridines. RSC Adv 2015. [DOI: 10.1039/c5ra05377c] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Microwave-assisted three-component domino reaction for the synthesis of sulfoether-decorated imidazo[1,2-a]pyridines.
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Affiliation(s)
- Haiying Zhan
- School of Chemistry and Chemical Engineering
- Guangdong Pharmaceutical University
- Zhongshan 528458
- P. R. China
| | - Hua Cao
- School of Chemistry and Chemical Engineering
- Guangdong Pharmaceutical University
- Zhongshan 528458
- P. R. China
| | - Huifang Qiu
- School of Chemistry and Chemical Engineering
- Guangdong Pharmaceutical University
- Zhongshan 528458
- P. R. China
| | - Naiying Li
- School of Chemistry and Chemical Engineering
- Guangdong Pharmaceutical University
- Zhongshan 528458
- P. R. China
| | - Longbin Chen
- School of Chemistry and Chemical Engineering
- Guangdong Pharmaceutical University
- Zhongshan 528458
- P. R. China
| | - Jingyun Liu
- School of Chemistry and Chemical Engineering
- Guangdong Pharmaceutical University
- Zhongshan 528458
- P. R. China
| | - Huiyin Cai
- School of Chemistry and Chemical Engineering
- Guangdong Pharmaceutical University
- Zhongshan 528458
- P. R. China
| | - Jingwen Tan
- School of Chemistry and Chemical Engineering
- Guangdong Pharmaceutical University
- Zhongshan 528458
- P. R. China
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