1
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Escandón-Mancilla FM, González-Rivas N, Unnamatla MVB, García-Eleno MA, Corona-Becerril D, Frontana-Uribe BA, Cuevas-Yañez E. Beyond 1,2,3-triazoles: Formation and Applications of Ketemines Derived from Copper Catalyzed Azide Alkyne Cycloaddition. Curr Org Synth 2024; 21:359-379. [PMID: 36177624 DOI: 10.2174/1570179420666220929152449] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2022] [Revised: 08/12/2022] [Accepted: 09/05/2022] [Indexed: 11/22/2022]
Abstract
Ketemines represent an interesting class of organic intermediates that has undergone a regrowth as a consequence of recent extensions of copper catalyzed azide alkyne cycloaddition (Cu- AAC) to other synthetic fields. This review summarizes the most recent generation methods of ketimines from CuAAC reaction, highlighting chemical properties focused on the synthesis of cyclic compounds, among others, affording a general outlook towards the development of new biologically active compounds.
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Affiliation(s)
- Flor M Escandón-Mancilla
- Centro Conjunto de Investigación en Química Sustentable UAEM-UNAM, Carretera Toluca-Atlacomulco Km. 14.5, Toluca, Estado de México, 50200, Mexico
| | - Nelly González-Rivas
- Centro Conjunto de Investigación en Química Sustentable UAEM-UNAM, Carretera Toluca-Atlacomulco Km. 14.5, Toluca, Estado de México, 50200, Mexico
- Facultad de Química, Universidad Autónoma del Estado de México. Paseo Colón esq. Paseo Tollocan, 50120, Toluca, Mexico
| | - Murali V Basavanag Unnamatla
- Centro Conjunto de Investigación en Química Sustentable UAEM-UNAM, Carretera Toluca-Atlacomulco Km. 14.5, Toluca, Estado de México, 50200, Mexico
- Facultad de Química, Universidad Autónoma del Estado de México. Paseo Colón esq. Paseo Tollocan, 50120, Toluca, Mexico
| | - Marco A García-Eleno
- Centro Conjunto de Investigación en Química Sustentable UAEM-UNAM, Carretera Toluca-Atlacomulco Km. 14.5, Toluca, Estado de México, 50200, Mexico
- Facultad de Química, Universidad Autónoma del Estado de México. Paseo Colón esq. Paseo Tollocan, 50120, Toluca, Mexico
| | - David Corona-Becerril
- Centro Conjunto de Investigación en Química Sustentable UAEM-UNAM, Carretera Toluca-Atlacomulco Km. 14.5, Toluca, Estado de México, 50200, Mexico
- Facultad de Química, Universidad Autónoma del Estado de México. Paseo Colón esq. Paseo Tollocan, 50120, Toluca, Mexico
| | - Bernardo A Frontana-Uribe
- Centro Conjunto de Investigación en Química Sustentable UAEM-UNAM, Carretera Toluca-Atlacomulco Km. 14.5, Toluca, Estado de México, 50200, Mexico
- Instituto de Química, Universidad Nacional Autónoma de México, Circuito Exterior, Ciudad Universitaria, Ciudad de México, 04510, Mexico
| | - Erick Cuevas-Yañez
- Centro Conjunto de Investigación en Química Sustentable UAEM-UNAM, Carretera Toluca-Atlacomulco Km. 14.5, Toluca, Estado de México, 50200, Mexico
- Facultad de Química, Universidad Autónoma del Estado de México. Paseo Colón esq. Paseo Tollocan, 50120, Toluca, Mexico
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2
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Pasumpon K, Mahendran V, Shanmugam S. Microwave‐Assisted Tandem Copper‐Catalyzed Three‐Component Reaction for Synthesis of 2‐Iminopyrans. ChemistrySelect 2022. [DOI: 10.1002/slct.202203659] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Kamaraj Pasumpon
- Department of Organic Chemistry School of Chemistry Madurai Kamaraj University Madurai 625 021
- Department of Chemistry Eurofins Advinus Biopharma Services India Pvt. Ltd Bangalore 560058
| | | | - Sivakumar Shanmugam
- Department of Organic Chemistry School of Chemistry Madurai Kamaraj University Madurai 625 021
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3
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N-(p-Toluenesulfonyl)-1-(4′-acetylphenoxy)acrylimidate: Synthesis, Crystal Structure and Theoretical Studies. MOLBANK 2022. [DOI: 10.3390/m1509] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
The formation of N-sulfonyl-1-aryloxy acrylimidate is described, for the first time, from a consecutive process, which involves a CuAAC reaction, a ketenimine formation and subsequent rearrangement between an aryl propargyl ether and a sulfonyl azide. The structure of this newly synthesized compound was analyzed by NMR spectra and unambiguously established by X-ray analysis. In addition, theoretical calculations, which included a Hirshfeld surface, FMO, QTAIM and NCI indices analysis, corroborated the formation of π-π stacking interactions among aromatic rings, as well as C-H···O interactions between vinyl hydrogens with ketone carbonyl oxygen.
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4
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Yang XH, Huang J, Wang F, Liu Z, Li Y, Tao CA, Wang J. Copper-catalyzed alkynylation/annulation cascades of N-allyl ynamides: regioselective access to medium-sized N-heterocycles. Org Chem Front 2021. [DOI: 10.1039/d0qo00837k] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
A synthetic strategy based on sequential application of aza-Claisen rearrangement, C–H functionalization, C–N coupling and cyclization as key steps has been developed for the synthesis of 6-, 7-, 8-, and 9-membered rings N-heterocycles.
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Affiliation(s)
- Xu-Heng Yang
- College of Liberal Arts and Science
- National University of Defense Technology
- Changsha 410073
- China
| | - Jian Huang
- College of Liberal Arts and Science
- National University of Defense Technology
- Changsha 410073
- China
| | - Fang Wang
- College of Liberal Arts and Science
- National University of Defense Technology
- Changsha 410073
- China
| | - Zhuoliang Liu
- College of Liberal Arts and Science
- National University of Defense Technology
- Changsha 410073
- China
| | - Yujiao Li
- College of Liberal Arts and Science
- National University of Defense Technology
- Changsha 410073
- China
| | - Cheng-an Tao
- College of Liberal Arts and Science
- National University of Defense Technology
- Changsha 410073
- China
| | - Jianfang Wang
- College of Liberal Arts and Science
- National University of Defense Technology
- Changsha 410073
- China
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5
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Sadhukhan S, Baire B. Formal Halo‐Meyer–Schuster Rearrangement of Propargylic Acetates through a Novel Intermediate and an Unexampled Mechanistic Pathway. Chemistry 2019; 25:9816-9820. [DOI: 10.1002/chem.201901856] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2019] [Revised: 05/29/2019] [Indexed: 01/02/2023]
Affiliation(s)
- Santu Sadhukhan
- Department of ChemistryIndian Institute of Technology Madras Chennai Tamilnadu 600036 India
| | - Beeraiah Baire
- Department of ChemistryIndian Institute of Technology Madras Chennai Tamilnadu 600036 India
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6
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Roy D, Tharra P, Baire B. Intercepted Meyer-Schuster Rearrangements in Organic Synthesis. ASIAN J ORG CHEM 2018. [DOI: 10.1002/ajoc.201800089] [Citation(s) in RCA: 53] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Debayan Roy
- Department of Chemistry; Indian Institute of Technology Madras; Chennai 600036 Tamil Nadu India
| | - Prabhakararao Tharra
- Department of Chemistry; Indian Institute of Technology Madras; Chennai 600036 Tamil Nadu India
| | - Beeraiah Baire
- Department of Chemistry; Indian Institute of Technology Madras; Chennai 600036 Tamil Nadu India
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7
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Kumar R, Thorat SH, Reddy MS. Cu-Catalyzed iminative hydroolefination of unactivated alkynes en route to 4-imino-tetrahydropyridines and 4-aminopyridines. Chem Commun (Camb) 2018; 52:13475-13478. [PMID: 27790654 DOI: 10.1039/c6cc08081b] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
A general method for synthesizing 4-imino tetrahydropyridine derivatives is achieved, from readily available β-enaminones and sulfonyl azides, which comprises a sequential copper catalyzed ketenimine formation and its hitherto inaccessible intramolecular hydrovinylation. The products are shown as ready precursors for highly valuable 4-sulfonamidopyridine derivatives via DDQ mediated oxidation.
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Affiliation(s)
- Ravi Kumar
- Medicinal & Process Chemistry Division, CSIR-Central Drug Research Institute, BS-10/1, Sector 10, Jankipuram extension, Sitapur Road, Lucknow 226031, India. and Academy of Scientific and Innovative Research, New Delhi 110001, India
| | - Shridhar H Thorat
- Centre for Materials Characterization, CSIR-NCL, Dr Homi Bhabha Road, Pune-411008, India
| | - Maddi Sridhar Reddy
- Medicinal & Process Chemistry Division, CSIR-Central Drug Research Institute, BS-10/1, Sector 10, Jankipuram extension, Sitapur Road, Lucknow 226031, India. and Academy of Scientific and Innovative Research, New Delhi 110001, India
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8
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Sadhukhan S, Baire B. An Expeditious Approach to α,α-Dihalo-α′-acetoxyketones from Propargylic Acetates. ChemistrySelect 2017. [DOI: 10.1002/slct.201701398] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Santu Sadhukhan
- Department of Chemistry; Indian Institute of Technology Madras; Chennai- 600036 INDIA
| | - Beeraiah Baire
- Department of Chemistry; Indian Institute of Technology Madras; Chennai- 600036 INDIA
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9
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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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10
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Shojaei S, Ghasemi Z, Shahrisa A. Cu(I)@Fe
3
O
4
nanoparticles supported on imidazolium‐based ionic liquid‐grafted cellulose: Green and efficient nanocatalyst for multicomponent synthesis of
N
‐sulfonylamidines and
N
‐sulfonylacrylamidines. Appl Organomet Chem 2017. [DOI: 10.1002/aoc.3788] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Salman Shojaei
- Department of Organic and Biochemistry, Faculty of ChemistryUniversity of Tabriz Tabriz 5166614766 Iran
| | - Zarrin Ghasemi
- Department of Organic and Biochemistry, Faculty of ChemistryUniversity of Tabriz Tabriz 5166614766 Iran
| | - Aziz Shahrisa
- Department of Organic and Biochemistry, Faculty of ChemistryUniversity of Tabriz Tabriz 5166614766 Iran
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11
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Hari Babu M, Ranjith Kumar G, Kant R, Sridhar Reddy M. Ni-Catalyzed regio- and stereoselective addition of arylboronic acids to terminal alkynes with a directing group tether. Chem Commun (Camb) 2017; 53:3894-3897. [DOI: 10.1039/c6cc10256e] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Addition of arylboronic acids to directing group tethered acetylenes in a regio and stereoselective manner using an inexpensive catalytic system is achieved for the first time to access highly sought after allyl/homoallyl alcohol/amine units.
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Affiliation(s)
- Madala Hari Babu
- MPC Division
- CSIR-Central Drug Research Institute
- Lucknow 226031
- India
| | - Gadi Ranjith Kumar
- MPC Division
- CSIR-Central Drug Research Institute
- Lucknow 226031
- India
- Academy of Scientific and Innovative Research
| | - Ruchir Kant
- MSB Division
- CSIR-Central Drug Research Institute
- Lucknow 226031
- India
| | - Maddi Sridhar Reddy
- MPC Division
- CSIR-Central Drug Research Institute
- Lucknow 226031
- India
- Academy of Scientific and Innovative Research
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12
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Rajesh M, Puri S, Kant R, Sridhar Reddy M. Synthesis of Substituted Furan/Pyrrole-3-carboxamides through a Tandem Nucleopalladation and Isocyanate Insertion. Org Lett 2016; 18:4332-5. [PMID: 27532221 DOI: 10.1021/acs.orglett.6b02077] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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13
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Puri S, Hari Babu M, Sridhar Reddy M. BF3·OEt2-mediated syn-selective Meyer-Schuster rearrangement of phenoxy propargyl alcohols for Z-β-aryl-α,β-unsaturated esters. Org Biomol Chem 2016; 14:7001-9. [PMID: 27355915 DOI: 10.1039/c6ob01090c] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Synthesis of Z-β-aryl-α,β-unsaturated esters from readily available 1-aryl-3-phenoxy propargyl alcohols is achieved via a BF3-mediated syn-selective Meyer-Schuster rearrangement under ambient conditions. The reaction mechanism is postulated to involve an electrophilic borylation of an allene intermediate as the key step to kinetically control the stereoselectivity.
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Affiliation(s)
- Surendra Puri
- Medicinal & Process Chemistry Division, CSIR-Central Drug Research Institute, BS-10/1, Sector 10, Jankipuram extension, Sitapur Road, Lucknow 226031, India.
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14
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Cheng D, Ling F, Zheng C, Ma C. Tuning of Copper-Catalyzed Multicomponent Reactions toward 3-Functionalized Oxindoles. Org Lett 2016; 18:2435-8. [DOI: 10.1021/acs.orglett.6b00964] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Dong Cheng
- Department
of Chemistry, Zhejiang University, 20 Yugu Road, Hangzhou 310027, China
- School
of Chemistry and Materials Engineering, Chaohu University, Chaohu 238000, China
| | - Fei Ling
- Department
of Chemistry, Zhejiang University, 20 Yugu Road, Hangzhou 310027, China
| | - Chenguang Zheng
- Department
of Chemistry, Zhejiang University, 20 Yugu Road, Hangzhou 310027, China
| | - Cheng Ma
- Department
of Chemistry, Zhejiang University, 20 Yugu Road, Hangzhou 310027, China
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15
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Ranjith Kumar G, Kiran Kumar Y, Kant R, Sridhar Reddy M. Synthesis of benzofuranyl and indolyl methyl azides by tandem silver-catalyzed cyclization and azidation. Org Biomol Chem 2016; 14:4077-88. [PMID: 27064507 DOI: 10.1039/c6ob00191b] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A tandem Ag-catalyzed 5-exo-dig cyclization and catalyst free γ-azidation for benzofuranyl/indolyl methyl azides is presented. The adducts are further transformed to useful triazole-, tetrazole-, amide-, amine-, and pyrido-derivatives.
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Affiliation(s)
- Gadi Ranjith Kumar
- Medicinal & Process Chemistry Division
- CSIR-Central Drug Research Institute
- Lucknow 226031
- India
- Academy of Scientific and Innovative Research
| | - Yalla Kiran Kumar
- Medicinal & Process Chemistry Division
- CSIR-Central Drug Research Institute
- Lucknow 226031
- India
| | - Ruchir Kant
- Molecular & Structural Biology Division
- CSIR-CDRI
- Lucknow 226031
- India
| | - Maddi Sridhar Reddy
- Medicinal & Process Chemistry Division
- CSIR-Central Drug Research Institute
- Lucknow 226031
- India
- Academy of Scientific and Innovative Research
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16
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Kumar GR, Kumar YK, Reddy MS. A direct access to isoxazoles from ynones using trimethylsilyl azide as amino surrogate under metal/catalyst free conditions. Chem Commun (Camb) 2016; 52:6589-92. [DOI: 10.1039/c6cc02047j] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A general access to isoxazoles with outstanding functional group compatibility from the readily available ynones using trimethylsilyl azide as an amino surrogate under exceptionally simple conditions is described.
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Affiliation(s)
- Gadi Ranjith Kumar
- Medicinal & Process Chemistry Division
- CSIR-Central Drug Research Institute
- Lucknow 226031
- India
- Academy of Scientific and Innovative Research
| | - Yalla Kiran Kumar
- Medicinal & Process Chemistry Division
- CSIR-Central Drug Research Institute
- Lucknow 226031
- India
| | - Maddi Sridhar Reddy
- Medicinal & Process Chemistry Division
- CSIR-Central Drug Research Institute
- Lucknow 226031
- India
- Academy of Scientific and Innovative Research
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17
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You C, Yao F, Yan T, Cai M. A highly efficient heterogeneous copper-catalyzed Chan–Lam coupling reaction of sulfonyl azides with arylboronic acids leading to N-arylsulfonamides. RSC Adv 2016. [DOI: 10.1039/c6ra04298h] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A highly efficient and practical method for the synthesis of N-arylsulfonamides has been developed by a heterogeneous copper-catalyzed Chan–Lam coupling between sulfonyl azides and boronic acids.
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Affiliation(s)
- Chongren You
- Key Laboratory of Functional Small Organic Molecule
- Ministry of Education
- College of Chemistry & Chemical Engineering
- Jiangxi Normal University
- Nanchang 330022
| | - Fang Yao
- College of Chemical and Material Engineering
- Quzhou University
- Quzhou 324000
- P. R. China
| | - Tao Yan
- Key Laboratory of Functional Small Organic Molecule
- Ministry of Education
- College of Chemistry & Chemical Engineering
- Jiangxi Normal University
- Nanchang 330022
| | - Mingzhong Cai
- Key Laboratory of Functional Small Organic Molecule
- Ministry of Education
- College of Chemistry & Chemical Engineering
- Jiangxi Normal University
- Nanchang 330022
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18
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Kiran Kumar Y, Ranjith Kumar G, Sridhar Reddy M. Hg/Pt-catalyzed conversion of bromo alkynamines/alkynols to saturated and unsaturated γ-butyrolactams/lactones via intramolecular electrophilic cyclization. Org Biomol Chem 2015; 14:1252-60. [PMID: 26647118 DOI: 10.1039/c5ob02125a] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Convenient and general Hg(ii)/Pt(iv) catalyzed syntheses of γ-butyrolactams and α,β-unsaturated γ-butyrolactones/lactams are described via intramolecular electrophilic cyclizations of bromoalkynes with tosylamino and hydroxyl tethers. The reaction features the use of wet solvents, the exclusion of any base and additive, mild conditions and practical yields. We also synthesised few chiral lactams through this pathway. Additionally, it is shown that the NHTs group distanced further from the homopropargylic position assists regioselective bromoalkyne hydration to yield useful α-bromoketones. Furthermore, Boc protected bromo homo propargyl amines undergo 6-endo-dig cyclization through Boc oxygen to give bromomethylene substituted oxazinones.
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Affiliation(s)
- Yalla Kiran Kumar
- Medicinal & Process Chemistry Division, CSIR-Central Drug Research Institute, BS-10/1, Sector 10, Jankipuram Extension, Sitapur Road, Lucknow 226031, India.
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19
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Rajesh M, Thirupathi N, Jagadeshwar Reddy T, Kanojiya S, Sridhar Reddy M. Pd-Catalyzed Isocyanide Assisted Reductive Cyclization of 1-(2-Hydroxyphenyl)-propargyl Alcohols for 2-Alkyl/Benzyl Benzofurans and Their Useful Oxidative Derivatization. J Org Chem 2015; 80:12311-20. [DOI: 10.1021/acs.joc.5b02204] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Manda Rajesh
- Medicinal & Process Chemistry Division, CSIR-Central Drug Research Institute, BS-10/1, Sector 10, Jankipuram extension, Sitapur Road, Lucknow 226031, India
| | - Nuligonda Thirupathi
- Medicinal & Process Chemistry Division, CSIR-Central Drug Research Institute, BS-10/1, Sector 10, Jankipuram extension, Sitapur Road, Lucknow 226031, India
| | | | | | - Maddi Sridhar Reddy
- Medicinal & Process Chemistry Division, CSIR-Central Drug Research Institute, BS-10/1, Sector 10, Jankipuram extension, Sitapur Road, Lucknow 226031, India
- Academy of Scientific and Innovative Research, New Delhi 110001, India
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20
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Ramanathan D, Pitchumani K. Copper(I)-Y Zeolite-Catalyzed Regio- and Stereoselective [2 + 2 + 2] Cyclotrimerization Cascade: An Atom- and Step-Economical Synthesis of Pyrimido[1,6-a]quinoline. J Org Chem 2015; 80:10299-308. [PMID: 26390020 DOI: 10.1021/acs.joc.5b01896] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
An elegant copper(I)-Y zeolite-catalyzed tandem process, involving ketenimine-based termolecular [2 + 2 + 2]/[NC + CC + NC] cycloaddition, using sulfonyl azide, alkyne, and quinoline, to prepare pyrimido[1,6-a]quinolines is reported. In this straightforward, highly atom- and step-economical protocol, copper(I) promotes for azide-alkyne [3 + 2] cycloaddition which is followed by ring-rearrangement/ketenimine formation/regio- and stereoselective [2 + 2 + 2] termolecular cycloaddition and dehydrogenation cascade to yield selectively the E-isomer of pyrimido[1,6-a]quinoline.
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Affiliation(s)
- Devenderan Ramanathan
- School of Chemistry and ‡Centre for Green Chemistry Processes, School of Chemistry, Madurai Kamaraj University , Madurai 625 021, India
| | - Kasi Pitchumani
- School of Chemistry and ‡Centre for Green Chemistry Processes, School of Chemistry, Madurai Kamaraj University , Madurai 625 021, India
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21
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Kumar YK, Kumar GR, Reddy TJ, Sridhar B, Reddy MS. Synthesis of 3-Sulfonylamino Quinolines from 1-(2-Aminophenyl) Propargyl Alcohols through a Ag(I)-Catalyzed Hydroamination, (2 + 3) Cycloaddition, and an Unusual Strain-Driven Ring Expansion. Org Lett 2015; 17:2226-9. [PMID: 25875073 DOI: 10.1021/acs.orglett.5b00832] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
We describe herein a silver-catalyzed conversion of 1-(2-aminophenyl)-propargyl alcohols to 4-substituted 3-tosylaminoquinolines using TsN3 as an amino surrogate. Controlled reactions reveal the pathway consisting of Ag(I)-catalyzed 5-exo-dig cyclization, catalyst-free (2 + 3) cycloaddition, and ring-expansive rearrangement via nitrogen expulsion. As a support study, we show that the cyclic enamines in similar conditions produce amidines via a C-C bond migration.
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Affiliation(s)
| | | | | | - Balasubramanian Sridhar
- §X-ray Crystallography Division, CSIR-Indian Institute of Chemical Technology, Tarnaka, Hyderabad 500007, India
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22
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Zhang W, Xie J, Rao B, Luo M. Iron-Catalyzed N-Arylsulfonamide Formation through Directly Using Nitroarenes as Nitrogen Sources. J Org Chem 2015; 80:3504-11. [DOI: 10.1021/acs.joc.5b00130] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Weixi Zhang
- Key Laboratory
of Green Chemistry and Technology of Ministry of Education, College
of Chemistry, Sichuan University, Chengdu 610064, People’s Republic of China
| | - Junyao Xie
- Key Laboratory
of Green Chemistry and Technology of Ministry of Education, College
of Chemistry, Sichuan University, Chengdu 610064, People’s Republic of China
| | - Bin Rao
- Key Laboratory
of Green Chemistry and Technology of Ministry of Education, College
of Chemistry, Sichuan University, Chengdu 610064, People’s Republic of China
| | - Meiming Luo
- Key Laboratory
of Green Chemistry and Technology of Ministry of Education, College
of Chemistry, Sichuan University, Chengdu 610064, People’s Republic of China
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23
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Hari Babu M, Dwivedi V, Kant R, Sridhar Reddy M. Palladium-Catalyzed Regio- and Stereoselective Cross-Addition of Terminal Alkynes to Ynol Ethers and Synthesis of 1,4-Enyn-3-ones. Angew Chem Int Ed Engl 2015; 54:3783-6. [DOI: 10.1002/anie.201411261] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2014] [Indexed: 01/08/2023]
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24
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Hari Babu M, Dwivedi V, Kant R, Sridhar Reddy M. Palladium-Catalyzed Regio- and Stereoselective Cross-Addition of Terminal Alkynes to Ynol Ethers and Synthesis of 1,4-Enyn-3-ones. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201411261] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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25
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Mahendran V, Shanmugam S. One-pot synthesis of hydrazono-sulfonamide adducts using Cu(BTC) MOF catalyst and their remarkable AIEE properties: unprecedented copper(ii)-catalyzed generation of ketenimine. RSC Adv 2015. [DOI: 10.1039/c5ra00147a] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
One pot & simple operation; short reaction time; no column purification; very less catalyst loading; scalable.
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Affiliation(s)
| | - Sivakumar Shanmugam
- Department of Organic Chemistry
- School of Chemistry
- Madurai Kamaraj University
- Madurai 625021
- India
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26
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Wang J, Lu P, Wang Y. Copper-catalyzed multi-component synthesis of acrylamidines and benzoimidazoles. Org Chem Front 2015. [DOI: 10.1039/c5qo00196j] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
Acrylamidines were synthesized via the copper-catalyzed three-component reaction of propargyl acetates, sulfonyl azides and amines, which are readily accessible materials.
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Affiliation(s)
- Jinjin Wang
- Department of Chemistry
- Zhejiang University
- Hangzhou 310027
- P. R. China
| | - Ping Lu
- Department of Chemistry
- Zhejiang University
- Hangzhou 310027
- P. R. China
| | - Yanguang Wang
- Department of Chemistry
- Zhejiang University
- Hangzhou 310027
- P. R. China
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27
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Dwivedi V, Hari Babu M, Kant R, Sridhar Reddy M. N-Substitution dependent stereoselectivity switch in palladium catalyzed hydroalkynylation of ynamides: a regio and stereoselective synthesis of ynenamides. Chem Commun (Camb) 2015; 51:14996-9. [DOI: 10.1039/c5cc06251a] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
A palladium catalysed regioselective hydroalkynylation of ynamides for ynenamides is achieved with an N-substitution dependent stereoselectivity switch.
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Affiliation(s)
- Vikas Dwivedi
- Medicinal & Process Chemistry Division
- CSIR-Central Drug Research Institute
- Lucknow 226031
- India
| | - Madala Hari Babu
- Medicinal & Process Chemistry Division
- CSIR-Central Drug Research Institute
- Lucknow 226031
- India
| | - Ruchir Kant
- Molecular & Structural Biology Division
- CSIR-CDRI
- Lucknow 226031
- India
| | - Maddi Sridhar Reddy
- Medicinal & Process Chemistry Division
- CSIR-Central Drug Research Institute
- Lucknow 226031
- India
- Academy of Scientific and Innovative Research
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28
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Puri S, Thirupathi N, Sridhar Reddy M. Iodo Meyer–Schuster Rearrangement of 3-Alkoxy-2-yn-1-ols for β-Mono (Exclusively Z-Selective)-/Disubstituted α-Iodo-α,β-Unsaturated Esters. Org Lett 2014; 16:5246-9. [DOI: 10.1021/ol502224s] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Surendra Puri
- Medicinal & Process Chemistry Division, CSIR-Central Drug Research Institute, BS-10/1, Sector 10, Jankipuram Extension, Sitapur Road, P.O. Box 173, Lucknow 226031, India
| | - Nuligonda Thirupathi
- Medicinal & Process Chemistry Division, CSIR-Central Drug Research Institute, BS-10/1, Sector 10, Jankipuram Extension, Sitapur Road, P.O. Box 173, Lucknow 226031, India
| | - Maddi Sridhar Reddy
- Medicinal & Process Chemistry Division, CSIR-Central Drug Research Institute, BS-10/1, Sector 10, Jankipuram Extension, Sitapur Road, P.O. Box 173, Lucknow 226031, India
- Academy of Scientific and Innovative Research, New Delhi 110001, India
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29
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Zhang D, Nakamura I, Terada M. Copper-catalyzed cascade transformation of O-propargylic oximes with sulfonyl azides to α,β-unsaturated N-acylamidines. Org Lett 2014; 16:5184-7. [PMID: 25226502 DOI: 10.1021/ol502541w] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Copper-catalyzed cascade transformations of O-propargylic oximes and sulfonyl azides were carried out to efficiently afford α,β-unsaturated N-acylamidines. The reaction involved the intramolecular attack of the oxime group to the ketenimine moiety that was generated in situ, followed by the cleavage of the N-O bond.
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Affiliation(s)
- Dong Zhang
- Department of Chemistry, Graduate School of Science, Tohoku University , Sendai 980-8578, Japan
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30
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Song XR, Song B, Qiu YF, Han YP, Qiu ZH, Hao XH, Liu XY, Liang YM. TMSCl-Mediated Synthesis of α,β-Unsaturated Amides via C–C Bond Cleavage and C–N Bond Formation of Propargyl Alcohols with Trimethylsilyl Azide. J Org Chem 2014; 79:7616-25. [DOI: 10.1021/jo5013948] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Xian-Rong Song
- State Key
Laboratory of Applied
Organic Chemistry, Lanzhou University, Lanzhou 730000, People’s Republic of China
| | - Bo Song
- State Key
Laboratory of Applied
Organic Chemistry, Lanzhou University, Lanzhou 730000, People’s Republic of China
| | - Yi-Feng Qiu
- State Key
Laboratory of Applied
Organic Chemistry, Lanzhou University, Lanzhou 730000, People’s Republic of China
| | - Ya-Ping Han
- State Key
Laboratory of Applied
Organic Chemistry, Lanzhou University, Lanzhou 730000, People’s Republic of China
| | - Zi-Hang Qiu
- State Key
Laboratory of Applied
Organic Chemistry, Lanzhou University, Lanzhou 730000, People’s Republic of China
| | - Xin-Hua Hao
- State Key
Laboratory of Applied
Organic Chemistry, Lanzhou University, Lanzhou 730000, People’s Republic of China
| | - Xue-Yuan Liu
- State Key
Laboratory of Applied
Organic Chemistry, Lanzhou University, Lanzhou 730000, People’s Republic of China
| | - Yong-Min Liang
- State Key
Laboratory of Applied
Organic Chemistry, Lanzhou University, Lanzhou 730000, People’s Republic of China
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31
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Kumar GR, Kumar YK, Kant R, Reddy MS. Tandem Cu-catalyzed ketenimine formation and intramolecular nucleophile capture: Synthesis of 1,2-dihydro-2-iminoquinolines from 1-(o-acetamidophenyl)propargyl alcohols. Beilstein J Org Chem 2014; 10:1255-1260. [PMID: 24991276 PMCID: PMC4077525 DOI: 10.3762/bjoc.10.125] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2014] [Accepted: 04/30/2014] [Indexed: 12/18/2022] Open
Abstract
The copper-catalyzed ketenimine formation reaction of 1-(o-acetamidophenyl)propargyl alcohols with various sulfonyl azides is found to undergo a concomitant intramolecular nucleophile attack to generate 1,2-dihydro-2-iminoquinolines after aromatization (via elimination of acetyl and hydroxy groups) and tautomerization. The reaction produces 4-substituted and 3,4-unsubstituted title compounds in moderate to good yields under mild reaction conditions.
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Affiliation(s)
- Gadi Ranjith Kumar
- Medicinal & Process Chemistry Division, CSIR-Central Drug Research Institute, BS-10/1, Sector 10, Jankipuram extension, Sitapur Road, P.O. Box 173, Lucknow 226031, India.,Academy of Scientific and Innovative Research, New Delhi 110001, India
| | - Yalla Kiran Kumar
- Academy of Scientific and Innovative Research, New Delhi 110001, India
| | - Ruchir Kant
- Molecular & Structural Biology Division, CSIR-Central Drug Research Institute,BS-10/1, Sector 10, Jankipuram extension, Sitapur Road, P.O. Box 173, Lucknow 226031, India
| | - Maddi Sridhar Reddy
- Medicinal & Process Chemistry Division, CSIR-Central Drug Research Institute, BS-10/1, Sector 10, Jankipuram extension, Sitapur Road, P.O. Box 173, Lucknow 226031, India.,Academy of Scientific and Innovative Research, New Delhi 110001, India
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32
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Thirupathi N, Hari Babu M, Dwivedi V, Kant R, Sridhar Reddy M. Palladium-Catalyzed Tandem Intramolecular Oxy/Amino-Palladation/Isocyanide Insertion: Synthesis of α-Benzofuranyl/Indolylacetamides. Org Lett 2014; 16:2908-11. [DOI: 10.1021/ol501048x] [Citation(s) in RCA: 79] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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