1
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Boumekla Y, Xia F, Vidal L, Totée C, Raynaud C, Ouali A. Calcium-catalysed synthesis of amines through imine hydrosilylation: an experimental and theoretical study. Org Biomol Chem 2023; 21:1038-1045. [PMID: 36625298 DOI: 10.1039/d2ob02243e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
A method to reduce aldimines through hydrosilylation is reported. The catalytic system involves calcium triflimide (Ca(NTf2)2) and potassium hexafluorophosphate (KPF6) which have been shown to act in a synergistic manner. The expected amines are obtained in fair to very high yields (40-99%) under mild conditions (room temperature in most cases). To illustrate the potential of this method, a bioactive molecule with antifungal properties was prepared on the gram scale and in high yield in environmentally friendly 2-methyltetrahydrofuran. Moreover, it is shown in this example that the imine can be prepared in situ from the aldehyde and the amine without isolating the imine. The mechanism involved has been explored experimentally and through DFT calculations, and the results are in accordance with an electrophilic activation of the silane by the calcium catalyst.
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Affiliation(s)
| | - Fengjie Xia
- ICGM, Univ Montpellier, CNRS, ENSCM, Montpellier, France.
| | - Lucas Vidal
- ICGM, Univ Montpellier, CNRS, ENSCM, Montpellier, France.
| | - Cédric Totée
- ICGM, Univ Montpellier, CNRS, ENSCM, Montpellier, France.
| | | | - Armelle Ouali
- ICGM, Univ Montpellier, CNRS, ENSCM, Montpellier, France.
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2
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Jackson TR, Vuorinen A, Josa-Culleré L, Madden KS, Conole D, Cogswell TJ, Wilkinson IV, Kettyle LM, Zhang D, O’Mahony A, Gracias D, McCall L, Westwood R, Terstappen GC, Davies SG, Tate EW, Wynne GM, Vyas P, Russell AJ, Milne TA. A tubulin binding molecule drives differentiation of acute myeloid leukemia cells. iScience 2022; 25:104787. [PMID: 35992086 PMCID: PMC9385704 DOI: 10.1016/j.isci.2022.104787] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2022] [Revised: 05/31/2022] [Accepted: 07/13/2022] [Indexed: 12/01/2022] Open
Abstract
Despite much progress in developing better drugs, many patients with acute myeloid leukemia (AML) still die within a year of diagnosis. This is partly because it is difficult to identify therapeutic targets that are effective across multiple AML subtypes. One common factor across AML subtypes is the presence of a block in differentiation. Overcoming this block should allow for the identification of therapies that are not dependent on a specific mutation for their efficacy. Here, we used a phenotypic screen to identify compounds that stimulate differentiation in genetically diverse AML cell lines. Lead compounds were shown to decrease tumor burden and to increase survival in vivo. Using multiple complementary target deconvolution approaches, these compounds were revealed to be anti-mitotic tubulin disruptors that cause differentiation by inducing a G2-M mitotic arrest. Together, these results reveal a function for tubulin disruptors in causing differentiation of AML cells.
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Affiliation(s)
- Thomas R. Jackson
- MRC Molecular Haematology Unit, MRC Weatherall Institute of Molecular Medicine, NIHR Oxford Biomedical Research Centre Haematology Theme, Radcliffe Department of Medicine, University of Oxford, Oxford, UK
| | - Aini Vuorinen
- MRC Molecular Haematology Unit, MRC Weatherall Institute of Molecular Medicine, NIHR Oxford Biomedical Research Centre Haematology Theme, Radcliffe Department of Medicine, University of Oxford, Oxford, UK
| | - Laia Josa-Culleré
- Department of Chemistry, Chemistry Research Laboratory, University of Oxford, Mansfield Road, Oxford OX1 3TA, UK
| | - Katrina S. Madden
- Department of Chemistry, Chemistry Research Laboratory, University of Oxford, Mansfield Road, Oxford OX1 3TA, UK
| | - Daniel Conole
- Department of Chemistry, Molecular Sciences Research Hub, Imperial College London, 82 Wood Lane, London W12 0BZ, UK
| | - Thomas J. Cogswell
- Department of Pharmacology, University of Oxford, Mansfield Road, Oxford OX1 3QT, UK
| | - Isabel V.L. Wilkinson
- Department of Chemistry, Chemistry Research Laboratory, University of Oxford, Mansfield Road, Oxford OX1 3TA, UK
| | - Laura M. Kettyle
- Axis Bioservices, 189 Castleroe Rd, Coleraine, Co. Londonderry BT51 3RP, Northern Ireland
| | - Douzi Zhang
- MRC Molecular Haematology Unit, MRC Weatherall Institute of Molecular Medicine, NIHR Oxford Biomedical Research Centre Haematology Theme, Radcliffe Department of Medicine, University of Oxford, Oxford, UK
| | - Alison O’Mahony
- Eurofins Discovery Phenotypic Services, St. Charles, MO 63304 and Burlingame, CA 94010, USA
- Discovery Platform at Recursion, 41 S Rio Grande Street, Salt Lake City, UT 84101, USA
| | - Deanne Gracias
- MRC Molecular Haematology Unit, MRC Weatherall Institute of Molecular Medicine, NIHR Oxford Biomedical Research Centre Haematology Theme, Radcliffe Department of Medicine, University of Oxford, Oxford, UK
| | - Lorna McCall
- MRC Molecular Haematology Unit, MRC Weatherall Institute of Molecular Medicine, NIHR Oxford Biomedical Research Centre Haematology Theme, Radcliffe Department of Medicine, University of Oxford, Oxford, UK
| | - Robert Westwood
- Oxstem Ltd, Midland House West Way, Botley, Oxford OX2 0PH, UK
| | | | - Stephen G. Davies
- Department of Chemistry, Chemistry Research Laboratory, University of Oxford, Mansfield Road, Oxford OX1 3TA, UK
| | - Edward W. Tate
- Department of Chemistry, Molecular Sciences Research Hub, Imperial College London, 82 Wood Lane, London W12 0BZ, UK
| | - Graham M. Wynne
- Department of Chemistry, Chemistry Research Laboratory, University of Oxford, Mansfield Road, Oxford OX1 3TA, UK
- Oxstem Ltd, Midland House West Way, Botley, Oxford OX2 0PH, UK
| | - Paresh Vyas
- MRC Molecular Haematology Unit, MRC Weatherall Institute of Molecular Medicine, NIHR Oxford Biomedical Research Centre Haematology Theme, Radcliffe Department of Medicine, University of Oxford, Oxford, UK
| | - Angela J. Russell
- Department of Chemistry, Chemistry Research Laboratory, University of Oxford, Mansfield Road, Oxford OX1 3TA, UK
- Department of Pharmacology, University of Oxford, Mansfield Road, Oxford OX1 3QT, UK
| | - Thomas A. Milne
- MRC Molecular Haematology Unit, MRC Weatherall Institute of Molecular Medicine, NIHR Oxford Biomedical Research Centre Haematology Theme, Radcliffe Department of Medicine, University of Oxford, Oxford, UK
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3
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Han B, Khasnavis SR, Nwerem M, Bertagna M, Ball ND, Ogba OM. Calcium Bistriflimide-Mediated Sulfur(VI)-Fluoride Exchange (SuFEx): Mechanistic Insights toward Instigating Catalysis. Inorg Chem 2022; 61:9746-9755. [PMID: 35700314 PMCID: PMC9241145 DOI: 10.1021/acs.inorgchem.2c01230] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
![]()
We report a mechanistic
investigation of calcium bistriflimide-mediated
sulfur(VI)–fluoride exchange (SuFEx) between sulfonyl fluorides
and amines. We determine the likely pre-activation resting state—a
calcium bistriflimide complex with ligated amines—thus allowing
for corroborated calculation of the SuFEx activation barrier at ∼21
kcal/mol, compared to 21.5 ± 0.14 kcal/mol derived via kinetics
experiments. Transition state analysis revealed: (1) a two-point calcium-substrate
contact that activates the sulfur(VI) center and stabilizes the leaving
fluoride and (2) a 1,4-diazabicyclo[2.2.2]octane additive that provides
Brønsted-base activation of the nucleophilic amine. Stable Ca–F
complexes upon sulfonamide formation are likely contributors to inhibited
catalytic turnover, and a proof-of-principle redesign provided evidence
that sulfonamide formation is feasible with 10 mol % calcium bistriflimide. We report a computational and experimental
mechanistic study
of sulfur(VI)-fluoride exchange mediated by a calcium salt. Ca2+ activates the substrate via two critical Lewis acid−base
interactions. Stable fluoride-ligated Ca2+ complexes are
formed upon sulfonamide formation, and computations indicate that
heat and/or fluoride scavengers will facilitate regeneration of the
active Ca2+ species. These calculations guided an experimental
redesign, thus demonstrating improved catalytic efficiency using 10
mol % Ca2+.
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Affiliation(s)
- Brian Han
- Chemistry and Biochemistry Program, Schmid College of Science and Technology, Chapman University, One University Drive, Orange, California 92866, United States
| | - Samuel R Khasnavis
- Department of Chemistry, Pomona College, 645 North College Avenue, Claremont, California 91711, United States
| | - Matthew Nwerem
- Chemistry and Biochemistry Program, Schmid College of Science and Technology, Chapman University, One University Drive, Orange, California 92866, United States
| | - Michael Bertagna
- Chemistry and Biochemistry Program, Schmid College of Science and Technology, Chapman University, One University Drive, Orange, California 92866, United States
| | - Nicholas D Ball
- Department of Chemistry, Pomona College, 645 North College Avenue, Claremont, California 91711, United States
| | - O Maduka Ogba
- Chemistry and Biochemistry Program, Schmid College of Science and Technology, Chapman University, One University Drive, Orange, California 92866, United States
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4
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Pace DP, Robidas R, Tran UPN, Legault CY, Nguyen TV. Iodine-Catalyzed Synthesis of Substituted Furans and Pyrans: Reaction Scope and Mechanistic Insights. J Org Chem 2021; 86:8154-8171. [PMID: 34048250 DOI: 10.1021/acs.joc.1c00608] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Substituted pyrans and furans are core structures found in a wide variety of natural products and biologically active compounds. Herein, we report a practical and mild catalytic method for the synthesis of substituted pyrans and furans using molecular iodine, a simple and inexpensive catalyst. The method described is performed under solvent-free conditions at an ambient temperature and atmosphere, thus offering a facile and practical alternative to currently available reaction protocols. A combination of experimental studies and density functional theory calculations revealed interesting mechanistic insights into this seemingly simple reaction.
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Affiliation(s)
- Domenic P Pace
- School of Chemistry, University of New South Wales, Sydney, New South Wales 2052, Australia
| | - Raphaël Robidas
- Department of Chemistry, Centre in Green Chemistry and Catalysis, Université de Sherbrooke, Québec J1K 2R1, Canada
| | - Uyen P N Tran
- School of Chemistry, University of New South Wales, Sydney, New South Wales 2052, Australia.,Van Hien University, Ho Chi Minh City, Vietnam
| | - Claude Y Legault
- Department of Chemistry, Centre in Green Chemistry and Catalysis, Université de Sherbrooke, Québec J1K 2R1, Canada
| | - Thanh Vinh Nguyen
- School of Chemistry, University of New South Wales, Sydney, New South Wales 2052, Australia
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5
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Justaud F, Hachem A, Grée R. Recent Developments in the Meyer‐Schuster Rearrangement. European J Org Chem 2021. [DOI: 10.1002/ejoc.202001494] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Frédéric Justaud
- Univ Rennes CNRS (Institut for Chemical Sciences in Rennes), UMR 6226 35000 Rennes France
| | - Ali Hachem
- Lebanese University Faculty of Sciences (I) Laboratory for Medidinal Chemistry and Natural Products and PRASE-EDST Hadath Lebanon
| | - René Grée
- Univ Rennes CNRS (Institut for Chemical Sciences in Rennes), UMR 6226 35000 Rennes France
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6
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Song X, Yang R, Xiao Q. Recent Advances in the Synthesis of Heterocyclics via Cascade Cyclization of Propargylic Alcohols. Adv Synth Catal 2020. [DOI: 10.1002/adsc.202001142] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Xian‐Rong Song
- Institute of Organic Chemistry Jiangxi Science & Technology Normal University Key Laboratory of Organic Chemistry Nanchang 330013 People's Republic of China
| | - Ruchun Yang
- Institute of Organic Chemistry Jiangxi Science & Technology Normal University Key Laboratory of Organic Chemistry Nanchang 330013 People's Republic of China
| | - Qiang Xiao
- Institute of Organic Chemistry Jiangxi Science & Technology Normal University Key Laboratory of Organic Chemistry Nanchang 330013 People's Republic of China
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7
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Hammoud J, Abou-Khalil F, Roisnel T, Dorcet V, Bour C, Gandon V, Lebœuf D, Carpentier JF, Sarazin Y. Alkaline-earth complexes with macrocyclic-functionalised bis(phenolate)s and bis(fluoroalkoxide)s. Dalton Trans 2020; 49:13017-13028. [PMID: 32914818 DOI: 10.1039/d0dt02573a] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The synthesis and structural features of several families of unsolvated molecular complexes of the heavy alkaline earths (Ae = calcium, strontium and barium) supported by bis(phenolate)s or bis(fluoroalkoxide)s are described. These dianionic, multidentate ligands are built around diaza-macrocycles that contain either five or six N- and O-heteroatoms. Several of these complexes have been characterised by X-ray diffraction crystallography. A list of comparative features was drawn upon close examination of the molecular structures of these complexes. It highlights the subtle influences of the identity of the central Ae metal, denticity and nature -fluoroalkoxide vs. phenolate- of the anionic tethers in the ligands. All complexes are seven- or eight-coordinate. It is observed in particular that a decrease of the number of heteroatoms in the macrocyclic backbone of the ligand will be compensated by the establishment of intramolecular AeF interactions (accounting for ca. 3.8-6.4% of the pertaining coordination spheres according to bond valence sum analysis), dimerisation of the complex, or, in one case, solvent (thf) retention. Attempts to gauge the Lewis acidity in these series of complexes were carried out by three independent methods (Childs, Gutmann-Beckett and global electrophilicity index). However, conflicting results were obtained and no clear trend can be delineated, even if on the whole, these measurements concur to suggest relatively low Lewis acidity.
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Affiliation(s)
- Joanna Hammoud
- Univ Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes) - UMR 6226, F-35000 Rennes, France.
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8
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Karlinskii BY, Kostyukovich AY, Kucherov FA, Galkin KI, Kozlov KS, Ananikov VP. Directing-Group-Free, Carbonyl Group-Promoted Catalytic C–H Arylation of Bio-Based Furans. ACS Catal 2020. [DOI: 10.1021/acscatal.0c02143] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Bogdan Ya. Karlinskii
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky Prospekt 47, Moscow 119991, Russia
| | - Alexander Yu. Kostyukovich
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky Prospekt 47, Moscow 119991, Russia
| | - Fedor A. Kucherov
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky Prospekt 47, Moscow 119991, Russia
| | - Konstantin I. Galkin
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky Prospekt 47, Moscow 119991, Russia
| | - Kirill S. Kozlov
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky Prospekt 47, Moscow 119991, Russia
| | - Valentine P. Ananikov
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky Prospekt 47, Moscow 119991, Russia
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9
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Tu X, Peng H, Deng G. Synthesis of 4H-cyclopenta[c]furan-5(6H)-one derivatives. Tetrahedron 2020. [DOI: 10.1016/j.tet.2020.131421] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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10
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Wang Y, Zhang C, Li S. Progress in Cyclizations of 4‐Acetylenic Ketones: Synthesis of Furans and Pyrroles. ChemistrySelect 2020. [DOI: 10.1002/slct.202002379] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Yeming Wang
- Institute of Chemical and Industrial BioengineeringJilin Engineering Normal University Kaixuan Road, No.3050. Changchun 130052 China
| | - Chaoqun Zhang
- Institute of Chemical and Industrial BioengineeringJilin Engineering Normal University Kaixuan Road, No.3050. Changchun 130052 China
| | - Shizhe Li
- Institute of Chemical and Industrial BioengineeringJilin Engineering Normal University Kaixuan Road, No.3050. Changchun 130052 China
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11
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Xie P, Sun Z, Li S, Cai X, Qiu J, Fu W, Gao C, Wu S, Yang X, Loh TP. Reciprocal-Activation Strategy for Allylic Sulfination with Unactivated Allylic Alcohols. Org Lett 2020; 22:4893-4897. [DOI: 10.1021/acs.orglett.0c01747] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Peizhong Xie
- School of Chemistry and Molecular Engineering, Institute of Advanced Synthesis, Nanjing Tech University, Nanjing 211816, P. R. China
| | - Zuolian Sun
- School of Chemistry and Molecular Engineering, Institute of Advanced Synthesis, Nanjing Tech University, Nanjing 211816, P. R. China
| | - Shuangshuang Li
- School of Chemistry and Molecular Engineering, Institute of Advanced Synthesis, Nanjing Tech University, Nanjing 211816, P. R. China
| | - Xinying Cai
- School of Chemistry and Molecular Engineering, Institute of Advanced Synthesis, Nanjing Tech University, Nanjing 211816, P. R. China
| | - Ju Qiu
- School of Chemistry and Molecular Engineering, Institute of Advanced Synthesis, Nanjing Tech University, Nanjing 211816, P. R. China
| | - Weishan Fu
- School of Chemistry and Molecular Engineering, Institute of Advanced Synthesis, Nanjing Tech University, Nanjing 211816, P. R. China
| | - Cuiqing Gao
- Co-Innovation Center for the Sustainable Forestry in Southern China, College of Forestry, Nanjing Forestry University, Nanjing 210037, China
| | - Shisheng Wu
- CNPC Northeast Refining & Chemical Engineering Company, Ltd., Shenyang Company, Shengyang 110167, P. R. China
| | - Xiaobo Yang
- School of Chemistry and Molecular Engineering, Institute of Advanced Synthesis, Nanjing Tech University, Nanjing 211816, P. R. China
| | - Teck-Peng Loh
- School of Chemistry and Molecular Engineering, Institute of Advanced Synthesis, Nanjing Tech University, Nanjing 211816, P. R. China
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore 637371
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12
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He Y, Lou J, Zhou YG, Yu Z. ZnCl 2 -Catalyzed [4+1] Annulation of Alkylthio-Substituted Enaminones and Enaminothiones with Sulfur Ylides. Chemistry 2020; 26:4941-4946. [PMID: 31943441 DOI: 10.1002/chem.201905483] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2019] [Revised: 01/04/2020] [Indexed: 11/09/2022]
Abstract
Concise construction of furan and thiophene units has played an important role in the synthesis of potentially bioactive compounds and functional materials. Herein, an efficient Lewis acid ZnCl2 catalyzed [4+1] annulation of alkylthio-substituted enaminones is reported, that is, α-oxo ketene N,S-acetals with sulfur ylides to afford 2-acyl-3-aminofuran derivatives. In a similar fashion, [4+1] annulation of the corresponding enaminothiones, that is, α-thioxo ketene N,S-acetals, with sulfur ylides efficiently proceeded to give multisubstituted 3-aminothiophenes. This method features wide substrate scopes as well as broad functional group tolerance, offering a concise route to highly functionalized furans and thiophenes.
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Affiliation(s)
- Yuan He
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian, 116023, P. R. China.,University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Jiang Lou
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian, 116023, P. R. China.,University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Yong-Gui Zhou
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian, 116023, P. R. China
| | - Zhengkun Yu
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian, 116023, P. R. China.,State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 354 Fenglin Road, Shanghai, 200032, P. R. China
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13
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Xie P, Sun Z, Li S, Zhang L, Cai X, Fu W, Yang X, Liu Y, Wo X, Loh TP. Dehydrative Cross-Coupling of Allylic Alcohols with Alkynes. Org Lett 2020; 22:1599-1604. [DOI: 10.1021/acs.orglett.0c00108] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Affiliation(s)
- Peizhong Xie
- School of Chemistry and Molecular Engineering, Institute of Advanced Synthesis, Nanjing Tech University, Nanjing 211816, P. R. China
| | - Zuolian Sun
- School of Chemistry and Molecular Engineering, Institute of Advanced Synthesis, Nanjing Tech University, Nanjing 211816, P. R. China
| | - Shuangshuang Li
- School of Chemistry and Molecular Engineering, Institute of Advanced Synthesis, Nanjing Tech University, Nanjing 211816, P. R. China
| | - Lei Zhang
- School of Science, Tianjin Chengjian University, Tianjin 300384, P. R. China
| | - Xinying Cai
- School of Chemistry and Molecular Engineering, Institute of Advanced Synthesis, Nanjing Tech University, Nanjing 211816, P. R. China
| | - Weishan Fu
- School of Chemistry and Molecular Engineering, Institute of Advanced Synthesis, Nanjing Tech University, Nanjing 211816, P. R. China
| | - Xiaobo Yang
- School of Chemistry and Molecular Engineering, Institute of Advanced Synthesis, Nanjing Tech University, Nanjing 211816, P. R. China
| | - Yanan Liu
- School of Chemistry and Molecular Engineering, Institute of Advanced Synthesis, Nanjing Tech University, Nanjing 211816, P. R. China
| | - Xiangyang Wo
- School of Chemistry and Molecular Engineering, Institute of Advanced Synthesis, Nanjing Tech University, Nanjing 211816, P. R. China
| | - Teck-Peng Loh
- School of Chemistry and Molecular Engineering, Institute of Advanced Synthesis, Nanjing Tech University, Nanjing 211816, P. R. China
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore 637371
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14
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Sun Y, Hu M, Fu S, Liu B. Recent advances in alkaline earth metal-enabled syntheses of heterocyclic compounds. Org Biomol Chem 2020; 18:6443-6466. [DOI: 10.1039/d0ob01233e] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This review summarizes recent progress in alkaline earth metal enabled syntheses of heterocyclic compounds.
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Affiliation(s)
- Ying Sun
- Key Laboratory of Green Chemistry & Technology of Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064
- PR China
| | - Mengqin Hu
- Key Laboratory of Green Chemistry & Technology of Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064
- PR China
| | - Shaomin Fu
- Key Laboratory of Green Chemistry & Technology of Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064
- PR China
| | - Bo Liu
- Key Laboratory of Green Chemistry & Technology of Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064
- PR China
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15
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Xie P, Li S, Liu Y, Cai X, Wang J, Yang X, Loh TP. Alkaline-Earth Metal Catalyzed Dehydrative Allylic Alkylation. Org Lett 2019; 22:31-35. [DOI: 10.1021/acs.orglett.9b03730] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Peizhong Xie
- School of Chemistry and Molecular Engineering, Institute of Advanced Synthesis, Nanjing Tech University, Nanjing 211816, P.R. China
| | - Shuangshuang Li
- School of Chemistry and Molecular Engineering, Institute of Advanced Synthesis, Nanjing Tech University, Nanjing 211816, P.R. China
| | - Yanan Liu
- School of Chemistry and Molecular Engineering, Institute of Advanced Synthesis, Nanjing Tech University, Nanjing 211816, P.R. China
| | - Xinying Cai
- School of Chemistry and Molecular Engineering, Institute of Advanced Synthesis, Nanjing Tech University, Nanjing 211816, P.R. China
| | - Jinyu Wang
- School of Chemistry and Molecular Engineering, Institute of Advanced Synthesis, Nanjing Tech University, Nanjing 211816, P.R. China
| | - Xiaobo Yang
- School of Chemistry and Molecular Engineering, Institute of Advanced Synthesis, Nanjing Tech University, Nanjing 211816, P.R. China
| | - Teck-Peng Loh
- School of Chemistry and Molecular Engineering, Institute of Advanced Synthesis, Nanjing Tech University, Nanjing 211816, P.R. China
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore 637371
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16
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Bernhard Y, Gilbert J, Bousquet T, Favrelle-Huret A, Zinck P, Pellegrini S, Pelinski L. One-Pot Synthesis of 2,5-Disubstituted Furans through In Situ Formation of Allenes and Enolization Cascade. European J Org Chem 2019. [DOI: 10.1002/ejoc.201901669] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Yann Bernhard
- ENSCL, Centrale Lille, Univ. Artois, UMR 8181 UCCSUnité de Catalyse et Chimie du Solide; Univ. Lille; 59000 Lille France
| | - Joachim Gilbert
- ENSCL, Centrale Lille, Univ. Artois, UMR 8181 UCCSUnité de Catalyse et Chimie du Solide; Univ. Lille; 59000 Lille France
| | - Till Bousquet
- ENSCL, Centrale Lille, Univ. Artois, UMR 8181 UCCSUnité de Catalyse et Chimie du Solide; Univ. Lille; 59000 Lille France
| | - Audrey Favrelle-Huret
- ENSCL, Centrale Lille, Univ. Artois, UMR 8181 UCCSUnité de Catalyse et Chimie du Solide; Univ. Lille; 59000 Lille France
| | - Philippe Zinck
- ENSCL, Centrale Lille, Univ. Artois, UMR 8181 UCCSUnité de Catalyse et Chimie du Solide; Univ. Lille; 59000 Lille France
| | - Sylvain Pellegrini
- ENSCL, Centrale Lille, Univ. Artois, UMR 8181 UCCSUnité de Catalyse et Chimie du Solide; Univ. Lille; 59000 Lille France
| | - Lydie Pelinski
- ENSCL, Centrale Lille, Univ. Artois, UMR 8181 UCCSUnité de Catalyse et Chimie du Solide; Univ. Lille; 59000 Lille France
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17
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Xie P, Fu W, Cai X, Sun Z, Wu Y, Li S, Gao C, Yang X, Loh TP. A Ba/Pd Catalytic System Enables Dehydrative Cross-Coupling and Excellent E-Selective Wittig Reactions. Org Lett 2019; 21:7055-7059. [PMID: 31430163 DOI: 10.1021/acs.orglett.9b02623] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
A Ba/Pd cooperative catalysis system was developed to enable the dehydrative cross-coupling of allylic alcohols with P-ylides to occur directly and promote a subsequent Wittig reaction in one pot. A variety of multisubstituted 1,4-dienes were isolated in good to excellent yields with broad P-ylides (stabilized by both ester and ketone carbonyl groups) and aldehyde (aliphatic and aromatic) substrates with excellent E selectivity.
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Affiliation(s)
- Peizhong Xie
- School of Chemistry and Molecular Engineering, Institute of Advanced Synthesis, Nanjing Tech University, Nanjing 211816, P. R. China
| | - Weishan Fu
- School of Chemistry and Molecular Engineering, Institute of Advanced Synthesis, Nanjing Tech University, Nanjing 211816, P. R. China
| | - Xinying Cai
- School of Chemistry and Molecular Engineering, Institute of Advanced Synthesis, Nanjing Tech University, Nanjing 211816, P. R. China
| | - Zuolian Sun
- School of Chemistry and Molecular Engineering, Institute of Advanced Synthesis, Nanjing Tech University, Nanjing 211816, P. R. China
| | - Ying Wu
- School of Chemistry and Molecular Engineering, Institute of Advanced Synthesis, Nanjing Tech University, Nanjing 211816, P. R. China
| | - Shuangshuang Li
- School of Chemistry and Molecular Engineering, Institute of Advanced Synthesis, Nanjing Tech University, Nanjing 211816, P. R. China
| | - Cuiqing Gao
- Co-Innovation Center for the Sustainable Forestry in Southern China, College of Forestry, Nanjing Forestry University, Nanjing 210037, China
| | - Xiaobo Yang
- School of Chemistry and Molecular Engineering, Institute of Advanced Synthesis, Nanjing Tech University, Nanjing 211816, P. R. China
| | - Teck-Peng Loh
- School of Chemistry and Molecular Engineering, Institute of Advanced Synthesis, Nanjing Tech University, Nanjing 211816, P. R. China.,Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore 637371
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18
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Yaragorla S, Rajesh P. An efficient Benzannulation protocol for the synthesis of 9,9-Diphenyl-9H
-fluorenols using Intramolecular Allene Friedel-Crafts Annulation. European J Org Chem 2019. [DOI: 10.1002/ejoc.201900895] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Srinivasarao Yaragorla
- School of Chemistry; Gurbaksh Building, W-16, 17; University of Hyderabad; P.O. Central University, Gachibowli 5000046 Hyderabad Telangana State India
| | - P. Rajesh
- School of Chemistry; Gurbaksh Building, W-16, 17; University of Hyderabad; P.O. Central University, Gachibowli 5000046 Hyderabad Telangana State India
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19
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Abstract
Furans are five-membered aromatic heterocycles containing one oxygen atom that are important
building blocks in organic chemistry, but also as natural products found in various natural
sources, mostly in plants, algae and microorganisms. In this review, we discussed recent advances in the
synthesis of furan compounds. Some classical methods have been modified and improved, while other
new methods have been developed. A vast variety of catalysts was used for these transformations. In
many studies, furan synthesis reaction mechanisms were also investigated and proposed.
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Affiliation(s)
- Dau Xuan Duc
- Department of Chemistry, Vinh University, Vinh City, Vietnam
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20
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Affiliation(s)
- Hongwei Qian
- Department of ChemistryLishui University 1 Xueyuan Road Lishui City Zhejiang Province 323000 People's Republic of China
| | - Dayun Huang
- Department of ChemistryLishui University 1 Xueyuan Road Lishui City Zhejiang Province 323000 People's Republic of China
| | - Yicheng Bi
- Qingdao University of Science & TechnologySifang Campus 53 Zhengzhou Road Qingdao Shandong 266042 People's Republic of China
| | - Guobing Yan
- Department of ChemistryLishui University 1 Xueyuan Road Lishui City Zhejiang Province 323000 People's Republic of China
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21
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Xie P, Fu W, Wu Y, Cai X, Sun Z, Li S, Gao C, Yang X, Loh TP. Allylic Phosphorus Ylides Directly Generated from Alcohols with Water as the Only Byproduct. Org Lett 2019; 21:4168-4172. [DOI: 10.1021/acs.orglett.9b01349] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Peizhong Xie
- School of Chemistry and Molecular Engineering, Institute of Advanced Synthesis, Jiangsu National Synergetic Innovation Center for Advanced Materials, Nanjing Tech University, Nanjing 211816, P. R. China
| | - Weishan Fu
- School of Chemistry and Molecular Engineering, Institute of Advanced Synthesis, Jiangsu National Synergetic Innovation Center for Advanced Materials, Nanjing Tech University, Nanjing 211816, P. R. China
| | - Ying Wu
- School of Chemistry and Molecular Engineering, Institute of Advanced Synthesis, Jiangsu National Synergetic Innovation Center for Advanced Materials, Nanjing Tech University, Nanjing 211816, P. R. China
| | - Xinying Cai
- School of Chemistry and Molecular Engineering, Institute of Advanced Synthesis, Jiangsu National Synergetic Innovation Center for Advanced Materials, Nanjing Tech University, Nanjing 211816, P. R. China
| | - Zuolian Sun
- School of Chemistry and Molecular Engineering, Institute of Advanced Synthesis, Jiangsu National Synergetic Innovation Center for Advanced Materials, Nanjing Tech University, Nanjing 211816, P. R. China
| | - Shuangshuang Li
- School of Chemistry and Molecular Engineering, Institute of Advanced Synthesis, Jiangsu National Synergetic Innovation Center for Advanced Materials, Nanjing Tech University, Nanjing 211816, P. R. China
| | - Cuiqing Gao
- Co-Innovation Center for the Sustainable Forestry in Southern China, College of Forestry, Nanjing Forestry University, Nanjing, 210037, China
| | - Xiaobo Yang
- School of Chemistry and Molecular Engineering, Institute of Advanced Synthesis, Jiangsu National Synergetic Innovation Center for Advanced Materials, Nanjing Tech University, Nanjing 211816, P. R. China
| | - Teck-Peng Loh
- School of Chemistry and Molecular Engineering, Institute of Advanced Synthesis, Jiangsu National Synergetic Innovation Center for Advanced Materials, Nanjing Tech University, Nanjing 211816, P. R. China
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore 637371, Singapore
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22
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Yaragorla S, Rajesh P. Regiospecific formal [3 + 2] annulation of tert-propargyl alcohols with acyclic 1,3-diketones via the cycloisomerization of homoallenyl ketones. Org Biomol Chem 2019; 17:1924-1928. [DOI: 10.1039/c8ob02158a] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
A one-pot, regiospecific synthesis of dihydrofurans bearing a quaternary centre is developed from the formal [3 + 2] annulation of tert-propargyl alcohols and 1,3-diketones through the SN2I mechanism to form homoallenyl ketone and a subsequent cycloisomerization reaction.
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Affiliation(s)
| | - P. Rajesh
- School of Chemistry
- University of Hyderabad
- India
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23
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Affiliation(s)
- Manish Pareek
- Institut de Chimie Moléculaire et des Matériaux d’Orsay, CNRS UMR 8182, Université Paris-Sud, Université Paris-Saclay, Bâtiment 420, Orsay 91405 cedex, France
| | - Christophe Bour
- Institut de Chimie Moléculaire et des Matériaux d’Orsay, CNRS UMR 8182, Université Paris-Sud, Université Paris-Saclay, Bâtiment 420, Orsay 91405 cedex, France
| | - Vincent Gandon
- Institut de Chimie Moléculaire et des Matériaux d’Orsay, CNRS UMR 8182, Université Paris-Sud, Université Paris-Saclay, Bâtiment 420, Orsay 91405 cedex, France
- Laboratoire de Chimie Moléculaire (LCM), CNRS UMR 9168, Ecole Polytechnique, Université Paris-Saclay, route de Saclay, Palaiseau 91128 cedex, France
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24
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Yaragorla S, Rajesh P, Pareek A, Kumar A. Ca(II)-Mediated Regioselective One-pot Sequential Annulation of Acyclic compounds to Polycyclic Fluorenopyrans. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201801030] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
- Srinivasarao Yaragorla
- School of Chemistry; University of Hyderabad; Prof. C. R. Rao Road, Gachibowli, Hyderabad 500046 India
| | - P. Rajesh
- School of Chemistry; University of Hyderabad; Prof. C. R. Rao Road, Gachibowli, Hyderabad 500046 India
| | - Abhishek Pareek
- School of Chemistry; University of Hyderabad; Prof. C. R. Rao Road, Gachibowli, Hyderabad 500046 India
| | - Ankit Kumar
- School of Chemistry; University of Hyderabad; Prof. C. R. Rao Road, Gachibowli, Hyderabad 500046 India
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25
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Wang Q, Liu Z, Lou J, Yu Z. Palladium-Catalyzed C-S Bond Cleavage with Allenoates: Synthesis of Tetrasubstituted 2-Alkenylfuran Derivatives. Org Lett 2018; 20:6007-6011. [PMID: 30256115 DOI: 10.1021/acs.orglett.8b02253] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Palladium-catalyzed C-S cleavage of tetrasubstituted internal alkene α-oxo ketene dithioacetals was realized with allenoates as the coupling partners, efficiently affording tetrasubstituted 2-alkenylfuran derivatives with excellent regioselectivity under mild conditions. Allenoates acted as C1 synthons in the desulfurative [4 + 1] annulation.
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Affiliation(s)
- Quannan Wang
- Dalian Institute of Chemical Physics , Chinese Academy of Sciences , 457 Zhongshan Road , Dalian 116023 , China.,University of Chinese Academy of Sciences , Beijing 100049 , China
| | - Zhuqing Liu
- Dalian Institute of Chemical Physics , Chinese Academy of Sciences , 457 Zhongshan Road , Dalian 116023 , China.,University of Chinese Academy of Sciences , Beijing 100049 , China
| | - Jiang Lou
- Dalian Institute of Chemical Physics , Chinese Academy of Sciences , 457 Zhongshan Road , Dalian 116023 , China.,University of Chinese Academy of Sciences , Beijing 100049 , China
| | - Zhengkun Yu
- Dalian Institute of Chemical Physics , Chinese Academy of Sciences , 457 Zhongshan Road , Dalian 116023 , China.,State Key Laboratory of Organometallic Chemistry , Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences , 354 Fenglin Road , Shanghai 200032 , China
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26
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Gandhi S, Baire B. Calcium(II) Catalyzed Cycloisomerization of cis
-6-Hydroxy/(Acyloxy)hex-2-en-4-ynals to 2-Acyl- and 2-(Acyloxyalkenyl)furans. ChemistrySelect 2018. [DOI: 10.1002/slct.201800618] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Soniya Gandhi
- Department of Chemistry; Indian Institute of Technology Madras, Chennai; Tamilnadu INDIA-600036
| | - Beeraiah Baire
- Department of Chemistry; Indian Institute of Technology Madras, Chennai; Tamilnadu INDIA-600036
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27
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Yaragorla S, Dada R, Rajesh P, Sharma M. Highly Regioselective Synthesis of Oxindolyl-Pyrroles and Quinolines via a One-Pot, Sequential Meyer-Schuster Rearrangement, Anti-Michael Addition/C (sp3)-H Functionalization, and Azacyclization. ACS OMEGA 2018; 3:2934-2946. [PMID: 30023853 PMCID: PMC6044873 DOI: 10.1021/acsomega.8b00147] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/24/2018] [Accepted: 02/27/2018] [Indexed: 06/08/2023]
Abstract
A one-pot, sequential Meyer-Schuster (MS) rearrangement of oxindole-derived propargyl alcohols to the corresponding α,β-unsaturated enones and their anti-Michael addition, followed by intramolecular azacyclization is described in a highly regioselective manner using Ca(OTf)2 as the promoter. Further, we described the one-pot MS rearrangement, followed by C(sp3)-H functionalization of 2-methyl azaarenes at α-carbon of these doubly activated alkenes. Control experiments and computational calculations were performed to propose the reaction mechanism.
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28
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Marin L, Guillot R, Gandon V, Schulz E, Lebœuf D. A diversity-oriented synthesis of cyclopenta[b]pyrroles and related compounds through a calcium(ii)/copper(ii) catalytic sequence. Org Chem Front 2018. [DOI: 10.1039/c7qo00948h] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A sequential bicatalytic route relying on calcium(ii) and copper(ii) salts is described to provide access to original nitrogen-containing heterocycles.
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Affiliation(s)
- L. Marin
- Institut de Chimie Moléculaire et des Matériaux d'Orsay
- CNRS UMR 8182
- Univ. Paris-Sud
- Université Paris-Saclay
- 91405 Orsay cedex
| | - R. Guillot
- Institut de Chimie Moléculaire et des Matériaux d'Orsay
- CNRS UMR 8182
- Univ. Paris-Sud
- Université Paris-Saclay
- 91405 Orsay cedex
| | - V. Gandon
- Institut de Chimie Moléculaire et des Matériaux d'Orsay
- CNRS UMR 8182
- Univ. Paris-Sud
- Université Paris-Saclay
- 91405 Orsay cedex
| | - E. Schulz
- Institut de Chimie Moléculaire et des Matériaux d'Orsay
- CNRS UMR 8182
- Univ. Paris-Sud
- Université Paris-Saclay
- 91405 Orsay cedex
| | - D. Lebœuf
- Institut de Chimie Moléculaire et des Matériaux d'Orsay
- CNRS UMR 8182
- Univ. Paris-Sud
- Université Paris-Saclay
- 91405 Orsay cedex
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29
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Wo X, Xie P, Fu W, Gao C, Liu Y, Sun Z, Loh TP. Barium-catalyzed C–OH/P–H dehydrative cross-coupling for C–P bond construction. Chem Commun (Camb) 2018; 54:11132-11135. [DOI: 10.1039/c8cc06530f] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
A barium-catalyzed C–OH/P–H dehydrative cross-coupling protocol for the construction of C–P bonds was developed in an environmentally benign manner.
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Affiliation(s)
- Xiangyang Wo
- School of Chemistry and Molecular Engineering, Institute of Advanced Synthesis, Jiangsu National Synergetic Innovation Center for Advanced Materials, Nanjing Tech University
- Nanjing 211816
- P. R. China
| | - Peizhong Xie
- School of Chemistry and Molecular Engineering, Institute of Advanced Synthesis, Jiangsu National Synergetic Innovation Center for Advanced Materials, Nanjing Tech University
- Nanjing 211816
- P. R. China
| | - Weishan Fu
- School of Chemistry and Molecular Engineering, Institute of Advanced Synthesis, Jiangsu National Synergetic Innovation Center for Advanced Materials, Nanjing Tech University
- Nanjing 211816
- P. R. China
| | - Cuiqing Gao
- Co-Innovation Center for the Sustainable Forestry in Southern China, College of Forestry, Nanjing Forestry University
- Nanjing
- China
| | - Yanan Liu
- School of Chemistry and Molecular Engineering, Institute of Advanced Synthesis, Jiangsu National Synergetic Innovation Center for Advanced Materials, Nanjing Tech University
- Nanjing 211816
- P. R. China
| | - Zuolian Sun
- School of Chemistry and Molecular Engineering, Institute of Advanced Synthesis, Jiangsu National Synergetic Innovation Center for Advanced Materials, Nanjing Tech University
- Nanjing 211816
- P. R. China
| | - Teck-Peng Loh
- School of Chemistry and Molecular Engineering, Institute of Advanced Synthesis, Jiangsu National Synergetic Innovation Center for Advanced Materials, Nanjing Tech University
- Nanjing 211816
- P. R. China
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University
- Singapore
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30
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Metal-catalyzed rearrangement of allenylsulfides to furan: A theoretical mechanistic approach. MOLECULAR CATALYSIS 2017. [DOI: 10.1016/j.mcat.2017.09.031] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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31
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Lou J, Wang Q, Wu K, Wu P, Yu Z. Iron-Catalyzed Oxidative C–H Functionalization of Internal Olefins for the Synthesis of Tetrasubstituted Furans. Org Lett 2017; 19:3287-3290. [DOI: 10.1021/acs.orglett.7b01431] [Citation(s) in RCA: 51] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jiang Lou
- Dalian Institute
of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan
Road, Dalian 116023, P. R. China
- University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Quannan Wang
- Dalian Institute
of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan
Road, Dalian 116023, P. R. China
- University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Kaikai Wu
- Dalian Institute
of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan
Road, Dalian 116023, P. R. China
| | - Ping Wu
- Dalian Institute
of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan
Road, Dalian 116023, P. R. China
- University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Zhengkun Yu
- Dalian Institute
of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan
Road, Dalian 116023, P. R. China
- State Key Laboratory of Organometallic
Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 354 Fenglin Road, Shanghai 200032, P. R. China
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32
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Liu XD, Ma HY, Xing CH, Lu L. Alkynylation of cyclopropyl trifluoromethyl ketone catalyzed by CuF 2 ·2H 2 O/4,7-diphenyl-1,10-phenanthroline. Tetrahedron Lett 2017. [DOI: 10.1016/j.tetlet.2017.03.010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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33
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Vayer M, Fang W, Guillot R, Bezzenine-Lafollée S, Bour C, Gandon V. Acid-catalysed intramolecular addition of β-ketoesters to 1,3-dienes. Org Biomol Chem 2017; 15:584-588. [PMID: 27775130 DOI: 10.1039/c6ob02122k] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
1,3-Dienyl β-keto esters are cyclised into bicyclolactones using the Bi(OTf)3/TfOH catalytic system. This reaction represents a rare case of simultaneous C-C and C-O bond formation at positions 1 and 3 of a 1,3-diene. Application to the synthesis of ramulosin is presented.
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Affiliation(s)
- Marie Vayer
- Institut de Chimie Moléculaire et des Matériaux d'Orsay, CNRS UMR 8182, Univ. Paris-Sud, Université Paris-Saclay, bâtiment 420, 91405 Orsay cedex, France.
| | - Weizhen Fang
- Institut de Chimie Moléculaire et des Matériaux d'Orsay, CNRS UMR 8182, Univ. Paris-Sud, Université Paris-Saclay, bâtiment 420, 91405 Orsay cedex, France.
| | - Régis Guillot
- Institut de Chimie Moléculaire et des Matériaux d'Orsay, CNRS UMR 8182, Univ. Paris-Sud, Université Paris-Saclay, bâtiment 420, 91405 Orsay cedex, France.
| | - Sophie Bezzenine-Lafollée
- Institut de Chimie Moléculaire et des Matériaux d'Orsay, CNRS UMR 8182, Univ. Paris-Sud, Université Paris-Saclay, bâtiment 420, 91405 Orsay cedex, France.
| | - Christophe Bour
- Institut de Chimie Moléculaire et des Matériaux d'Orsay, CNRS UMR 8182, Univ. Paris-Sud, Université Paris-Saclay, bâtiment 420, 91405 Orsay cedex, France.
| | - Vincent Gandon
- Institut de Chimie Moléculaire et des Matériaux d'Orsay, CNRS UMR 8182, Univ. Paris-Sud, Université Paris-Saclay, bâtiment 420, 91405 Orsay cedex, France.
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34
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Yaragorla S, Dada R, Singh G, Pareek A, Rana M, Sharma AK. Ca(II)-Catalyzed Regioselective Cascade Synthesis of Oxindolyl- Naphthofurans through Meyer-Schuster type Rearrangement. ChemistrySelect 2016. [DOI: 10.1002/slct.201601349] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Srinivasarao Yaragorla
- Department of Chemistry; School of Chemical Sciences & Pharmacy; Central University of Rajasthan, NH-8, Ajmer Distt; Rajasthan 305817 India
| | - Ravikrishna Dada
- Department of Chemistry; School of Chemical Sciences & Pharmacy; Central University of Rajasthan, NH-8, Ajmer Distt; Rajasthan 305817 India
| | - Garima Singh
- Department of Chemistry; School of Chemical Sciences & Pharmacy; Central University of Rajasthan, NH-8, Ajmer Distt; Rajasthan 305817 India
| | - Abhishek Pareek
- Department of Chemistry; School of Chemical Sciences & Pharmacy; Central University of Rajasthan, NH-8, Ajmer Distt; Rajasthan 305817 India
| | - Monika Rana
- Department of Chemistry; School of Chemical Sciences & Pharmacy; Central University of Rajasthan, NH-8, Ajmer Distt; Rajasthan 305817 India
| | - Anuj K. Sharma
- Department of Chemistry; School of Chemical Sciences & Pharmacy; Central University of Rajasthan, NH-8, Ajmer Distt; Rajasthan 305817 India
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