1
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Sheokand S, Balakrishna MS. Cationic and Neutral Pd II and Pt II Pincer Complexes of Phosphinamino-Triazolyl-Pyridine [PN(H)N]: Pincer Ligand-Stabilized Palladium Nanoparticles and Their Catalytic Annulation of Internal Alkynes to Indenones. Inorg Chem 2023. [PMID: 37487029 DOI: 10.1021/acs.inorgchem.3c01273] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/26/2023]
Abstract
We describe the synthesis of a triazolyl-pyridine-based aminophosphine, N-(diphenylphosphaneyl)-6-(1-phenyl)-1H-(1,2,3-triazol-4-yl)pyridine-2-amine [2,6-{(PPh2)-N(H)(C5H3N)(C2HN3C6H5)}] [1, PN(H)N hereafter], and its palladium and platinum complexes and their catalytic application. The reaction of 1 with [M(COD)Cl2] (M = Pd or Pt) afforded the cationic complex [(MCl){PN(H)N}-κ3-P,N,N]Cl [M = Pd (2) or Pt (3)]. Alternatively, compounds 2 and 3 were also synthesized by treating [2,6-{H2N(C5H3N)(C2HN3C6H5)}] (A) with [M(COD)Cl2] (M = Pd or Pt), followed by the addition of stoichiometric amounts of PPh2Cl and Et3N. The neutral, dearomatized complexes [(MCl){PNN}-κ3-P,N,N] [M = Pd (4) or Pt (5)] were prepared by the deprotonation of the NH of 2 and 3 with 1 equiv of tBuOK. Compounds 4 and 5 were also synthesized stepwise by treating [2,6-{H2N(C5H3N)(C2HN3C6H5)}] (A) with [M(COD)Cl2] (M = Pd or Pt) to give intermediate complexes [{MCl2}2,6-{NH2(C5H3N)(C2HN3C6H5)-κ2-N,N}] [M = Pd (B) or Pt (C)], which were subsequently phosphinated. The in situ-generated PNN ligand-stabilized Pd nanoparticles from compound 2 catalyzed the annulation of o-bromobenzaldehyde with alkynes to yield indenone derivatives. Mechanistic investigations suggested that the reaction was catalyzed by Pd nanoparticles (Pd@2) generated from compound 2 and proceeded through sequential oxidative addition, alkyne insertion, and reductive elimination steps to produce indanone products.
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Affiliation(s)
- Sonu Sheokand
- Phosphorus Laboratory, Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - Maravanji S Balakrishna
- Phosphorus Laboratory, Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
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2
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Li C, Zhou Z, Ma S. A Pd-catalyzed highly selective three-component protocol for trisubstituted allenes. Chem Sci 2023; 14:7709-7715. [PMID: 37476716 PMCID: PMC10355113 DOI: 10.1039/d3sc01849k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2023] [Accepted: 06/20/2023] [Indexed: 07/22/2023] Open
Abstract
Herein we report the first example of a Pd-catalyzed highly selective three-component reaction of alkynyl-1,4-diol dicarbonates, organoboronic acids, and malonate anions for the efficient synthesis of trisubstituted 2,3-allenyl malonates not readily available by the known protocols. The reaction demonstrates an excellent regio- and chemo-selectivity for both the oxidative addition referring to the two C-O bonds and the subsequent coupling with the nucleophile with a remarkable functional group compatibility. A series of control experiments confirm a unique mechanism involving β-O elimination forming alka-1,2,3-triene and the subsequent insertion of its terminal C[double bond, length as m-dash]C bond into the Ar-Pd bond.
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Affiliation(s)
- Can Li
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences 345 Lingling Lu Shanghai 200032 P. R. China
- University of Chinese Academy of Sciences Beijing 100049 P. R. China
| | - Zhengnan Zhou
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences 345 Lingling Lu Shanghai 200032 P. R. China
- University of Chinese Academy of Sciences Beijing 100049 P. R. China
| | - Shengming Ma
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences 345 Lingling Lu Shanghai 200032 P. R. China
- Research Center for Molecular Recognition and Synthesis, Department of Chemistry, Fudan University 220 Handan Lu Shanghai 200433 P. R. China
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3
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Wang JY, Zhang S, Yuan Q, Li G, Yan S. Catalytic Radical-Triggered Annulation/Iododifluoromethylation of Enynones for the Stereospecific Synthesis of 1-Indenones. J Org Chem 2023. [PMID: 37220028 DOI: 10.1021/acs.joc.3c00471] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
A new Pd(II)-catalyzed annulation/iododifluoromethylation of enynones has been developed for the synthesis of versatile 1-indanones with moderate to good yields (26 examples). The present strategy enabled the concomitant incorporation of two important difluoroalkyl and iodo functionalities into 1-indenone skeletons with (E)-stereoselectivity. The mechanistic pathway was proposed, consisting of the difluoroalkyl radical-triggered α,β-conjugated addition/5-exo-dig cyclization/metal radical cross-coupling/reductive elimination cascade.
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Affiliation(s)
- Jia-Yin Wang
- School of Pharmacy, Continuous Flow Engineering Laboratory of National Petroleum and Chemical Industry, Changzhou University, Changzhou, Jiangsu 213164, China
| | - Sai Zhang
- Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, Texas 79409, United States
| | - Qingkai Yuan
- Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, Texas 79409, United States
| | - Guigen Li
- Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, Texas 79409, United States
| | - Shenghu Yan
- School of Pharmacy, Continuous Flow Engineering Laboratory of National Petroleum and Chemical Industry, Changzhou University, Changzhou, Jiangsu 213164, China
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4
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Han J, Liu S, Wang H, Wang J, Qian H, Li Z, Ma S, Zhang J. Pd/Xu-Phos-catalyzed asymmetric elimination of fully substituted enol triflates into axially chiral trisubstituted allenes. SCIENCE ADVANCES 2023; 9:eadg1002. [PMID: 36930705 PMCID: PMC10022902 DOI: 10.1126/sciadv.adg1002] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/02/2022] [Accepted: 02/08/2023] [Indexed: 06/18/2023]
Abstract
The β-H elimination, as one of the most important elementary reactions in transition metal chemistry, is a key step in quenching the carbon-palladium bond for the Heck reaction. However, the β-H elimination of the alkenyl palladium species leading to allene is an energetically unfavored process, and therefore, it has been a long-standing challenge in control of this process via enantioselective manner. We developed a concise and efficient methodology to construct trisubstituted chiral allenes from stereodefined fully substituted enol triflates by the enantioselective β-H elimination of the alkenyl palladium species under mild conditions. The identified Xu-Phos play a crucial role in the chemoselectivity and enantioselectivity. Multiple linear regression analysis shows the important steric effect on enantioselectivity. DFT computation results allow us to propose an intramolecular base (-OAc)-assisted deprotonation mechanism for this progress. Distortion-interaction and energy decomposition analysis indicate that the difference in electrostatic energy (Eelec) of the two intramolecular base-assisted deprotonation transition states dominates the stereoselectivity.
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Affiliation(s)
- Jie Han
- Department of Chemistry, Fudan University, Shanghai 200438, China
- Zhuhai Fudan Innovation Institute, Zhuhai 519000, China
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, Department of Chemistry, East China Normal University, 3663 N. Zhongshan Road, Shanghai 200062, China
| | - Siyuan Liu
- Department of Chemistry, Fudan University, Shanghai 200438, China
| | - Huanan Wang
- Department of Chemistry, Fudan University, Shanghai 200438, China
| | - Jie Wang
- Department of Chemistry, Fudan University, Shanghai 200438, China
| | - Hui Qian
- Department of Chemistry, Fudan University, Shanghai 200438, China
| | - Zhiming Li
- Department of Chemistry, Fudan University, Shanghai 200438, China
| | - Shengming Ma
- Department of Chemistry, Fudan University, Shanghai 200438, China
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, CAS, Shanghai, China
| | - Junliang Zhang
- Department of Chemistry, Fudan University, Shanghai 200438, China
- Zhuhai Fudan Innovation Institute, Zhuhai 519000, China
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, Department of Chemistry, East China Normal University, 3663 N. Zhongshan Road, Shanghai 200062, China
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5
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Coles-Taylor BL, Ellinwood ML, McCallum MS, McCormack SL, Jones MH, Muñoz AG, Michel BW. Access to Substituted Indenol Ethers via a Regioselective Intermolecular Carbopalladation Cascade. J Org Chem 2022; 87:16517-16525. [PMID: 36455157 DOI: 10.1021/acs.joc.2c02213] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2022]
Abstract
Alkyne carbopalladation reactions can rapidly generate multiple new C-C bonds; however, regioselectivity is challenging for intermolecular variants. Using ynol ethers, we observe complete regiocontrol of migratory insertion followed by a second migratory insertion with a pendant alkene to turn-over the catalytic cycle. The resulting products are oligosubstituted 1-indenol ethers with defined stereochemistry based on the initial alkene geometry. Blocking β-hydride elimination allowed for C-H and C-C reductive elimination steps for catalyst turnover.
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Affiliation(s)
- Brandon L Coles-Taylor
- Department of Chemistry and Biochemistry, University of Denver, Denver, Colorado 80210, United States
| | - Mitchell L Ellinwood
- Department of Chemistry and Biochemistry, University of Denver, Denver, Colorado 80210, United States
| | - Maximilian S McCallum
- Department of Chemistry and Biochemistry, University of Denver, Denver, Colorado 80210, United States
| | - Sara L McCormack
- Department of Chemistry and Biochemistry, University of Denver, Denver, Colorado 80210, United States
| | - Meredith H Jones
- Department of Chemistry and Biochemistry, University of Denver, Denver, Colorado 80210, United States
| | - Andrés G Muñoz
- Department of Chemistry and Biochemistry, University of Denver, Denver, Colorado 80210, United States
| | - Brian W Michel
- Department of Chemistry and Biochemistry, University of Denver, Denver, Colorado 80210, United States
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6
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Golling S, Hansjacob P, Bami N, Leroux FR, Donnard M. Direct Access to 2,3-Disubstituted Amido-Indenones through Annulation of 2-Iodobenzaldehydes with Ynamides. J Org Chem 2022; 87:16860-16866. [PMID: 36472915 DOI: 10.1021/acs.joc.2c02054] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
In this paper we report the annulation reaction between 2-iodobenzaldehyde derivatives and various ynamides. This palladium-catalyzed reaction leads to rare polysubstituted amino-indenones in good yields with a regioselectivity up to complete. Remarkably, a regiodivergent selectivity has been identified between aryl and alkyl or silyl ynamides, with the first leading mainly to 2-amido-indenones and the second to 3-amido-indenones.
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Affiliation(s)
- Stéphane Golling
- CNRS, UMR 7042-LIMA, ECPM, Université de Strasbourg, Université de Haute-Alsace, F-67000 Strasbourg, France
| | - Pierre Hansjacob
- CNRS, UMR 7042-LIMA, ECPM, Université de Strasbourg, Université de Haute-Alsace, F-67000 Strasbourg, France
| | - Nassim Bami
- CNRS, UMR 7042-LIMA, ECPM, Université de Strasbourg, Université de Haute-Alsace, F-67000 Strasbourg, France
| | - Frédéric R Leroux
- CNRS, UMR 7042-LIMA, ECPM, Université de Strasbourg, Université de Haute-Alsace, F-67000 Strasbourg, France
| | - Morgan Donnard
- CNRS, UMR 7042-LIMA, ECPM, Université de Strasbourg, Université de Haute-Alsace, F-67000 Strasbourg, France
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7
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Design, development and applications of copper-catalyzed regioselective (4 + 2) annulations between diaryliodonium salts and alkynes. Commun Chem 2022; 5:145. [PMID: 36697744 PMCID: PMC9814649 DOI: 10.1038/s42004-022-00768-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2022] [Accepted: 10/27/2022] [Indexed: 11/10/2022] Open
Abstract
Diaryliodonium salts have been extensively applied in organic synthesis as aryl cation equivalents. However, in the electrophilic reactions with alkenes or alkynes, only the electrophilic carbon of the diaryliodonium salts was involved while the other part of the aryl ring was not utilized. Herein, a reaction pattern of diaryliodonium was reported as oxa-1,4-dipoles to undergo (4 + 2) cycloaddition reactions with alkynes. Broad spectrum of the two reaction partners could be utilized in this protocol, enabling an operationally simple, high yielding, and regioselective synthetic approach to isocoumarins. Particularly, good to excellent regioselectivities were achieved for the sterically unbiased unsymmetrical diaryl acetylenes, which was challenging for other transition metal-catalyzed processes. The reaction could be scaled up with the ideal 1:1 stoichiometry and the isocoumarin type natural products Oospolactone and Thunberginol A could be obtained in one or three steps through this methodology.
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8
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Hutchinson L, Wilger D. Indenone Synthesis via Transition‐Metal‐Catalyzed Annulation. Adv Synth Catal 2022. [DOI: 10.1002/adsc.202200631] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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9
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Hynds HM, Lemons HE, Willis JD, Bell MJ, Bottcher SE, Dye MLN, Echols ET, Garner EL, Hutchinson LE, Phillips CM, Stephens CP, Gilbert TM, Wilger DJ. Ni-Catalyzed Larock Indenone Annulation with Aliphatic- and Silyl-Substituted Alkynes Supported by Mechanistic Analysis. Organometallics 2022. [DOI: 10.1021/acs.organomet.2c00016] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Hannah M. Hynds
- Department of Chemistry and Biochemistry, Samford University, Birmingham, Alabama 35229, United States
| | - Holli E. Lemons
- Department of Chemistry and Biochemistry, Samford University, Birmingham, Alabama 35229, United States
| | - Jasmine D. Willis
- Department of Chemistry and Biochemistry, Samford University, Birmingham, Alabama 35229, United States
| | - MarKayla J. Bell
- Department of Chemistry and Biochemistry, Samford University, Birmingham, Alabama 35229, United States
| | - Sydney E. Bottcher
- Department of Chemistry and Biochemistry, Samford University, Birmingham, Alabama 35229, United States
| | - Mei Lin N. Dye
- Department of Chemistry and Biochemistry, Samford University, Birmingham, Alabama 35229, United States
| | - Emily T. Echols
- Department of Chemistry and Biochemistry, Samford University, Birmingham, Alabama 35229, United States
| | - Edward L. Garner
- Department of Chemistry and Biochemistry, Samford University, Birmingham, Alabama 35229, United States
| | - Lauren E. Hutchinson
- Department of Chemistry and Biochemistry, Samford University, Birmingham, Alabama 35229, United States
| | - Caleb M. Phillips
- Department of Chemistry and Biochemistry, Samford University, Birmingham, Alabama 35229, United States
| | - Claudia P. Stephens
- Department of Chemistry and Biochemistry, Samford University, Birmingham, Alabama 35229, United States
| | - Thomas M. Gilbert
- Department of Chemistry and Biochemistry, Northern Illinois University, DeKalb, Illinois 60115, United States
| | - Dale J. Wilger
- Department of Chemistry and Biochemistry, Samford University, Birmingham, Alabama 35229, United States
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10
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Huang Y, Chen D, Zheng Y, Huang S. Synthesis of 3‐Sulfonyl Indenones via Copper‐Catalyzed Redox‐Neutral Coupling Reaction. ChemistrySelect 2022. [DOI: 10.1002/slct.202104347] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Yuan Huang
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources International Innovation Center for Forest Chemicals and Materials Nanjing Forestry University Nanjing 210037 China
| | - Dengfeng Chen
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources International Innovation Center for Forest Chemicals and Materials Nanjing Forestry University Nanjing 210037 China
| | - Yu Zheng
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources International Innovation Center for Forest Chemicals and Materials Nanjing Forestry University Nanjing 210037 China
| | - Shenlin Huang
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources International Innovation Center for Forest Chemicals and Materials Nanjing Forestry University Nanjing 210037 China
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11
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Synthesis of the eight-membered carbocycle of brachialactone by intramolecular Mizoroki-Heck reaction. Tetrahedron Lett 2022. [DOI: 10.1016/j.tetlet.2021.153608] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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12
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Dunås P, Paterson AJ, Kociok-Köhn G, Rahm M, Lewis SE, Kann N. Palladium-catalyzed stereoselective domino arylation-acylation: an entry to chiral tetrahydrofluorenone scaffolds. Chem Commun (Camb) 2021; 57:6518-6521. [PMID: 34105551 DOI: 10.1039/d1cc02160e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A palladium-catalyzed domino arylation-cyclization of biocatalytically derived cyclic 1,3-dienes is demonstrated. The reaction introduces a high degree of structural complexity in a single step, giving access to tricyclic tetrahydrofluorenones with full regio- and stereoselectivity. The transformation proceeds through a novel acylation-terminated Heck-type sequence, and quantum chemical calculations indicate that C-H activation is involved in the terminating acylation step.
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Affiliation(s)
- Petter Dunås
- Department of Chemistry and Chemical Engineering, Chalmers University of Technology, SE-41296 Gothenburg, Sweden.
| | - Andrew J Paterson
- Department of Chemistry and Chemical Engineering, Chalmers University of Technology, SE-41296 Gothenburg, Sweden.
| | - Gabriele Kociok-Köhn
- Materials and Chemical Characterization Facility, Convocation Avenue, University of Bath, Bath, BA2 7AY, UK
| | - Martin Rahm
- Department of Chemistry and Chemical Engineering, Chalmers University of Technology, SE-41296 Gothenburg, Sweden.
| | - Simon E Lewis
- Centre for Sustainable Circular Technologies, Convocation Avenue, University of Bath, Bath, BA2 7AY, UK. and Department of Chemistry, Convocation Avenue, University of Bath, Bath, BA2 7AY, UK
| | - Nina Kann
- Department of Chemistry and Chemical Engineering, Chalmers University of Technology, SE-41296 Gothenburg, Sweden.
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13
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García-López JA, Oliva-Madrid MJ, Bautista D, Vicente J, Saura-Llamas I. Sequential Insertion of Alkynes, Alkenes, and CO into the Pd–C Bond of ortho-Palladated Primary Phenethylamines: from η 3-Allyl Complexes and Enlarged Palladacycles to Functionalized Arylalkylamines. Organometallics 2021; 40:539-556. [PMID: 35264820 PMCID: PMC8895685 DOI: 10.1021/acs.organomet.0c00787] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2020] [Indexed: 12/24/2022]
Abstract
![]()
The eight-membered metallacycles
arising from the insertion of
1 equiv of alkyne into the Pd–C bond of ortho-metalated homoveratrylamine and phentermine can further react with
alkenes to give two different types of mononuclear complexes depending
on the nature of the olefin. When terminal alkenes (styrene and ethyl
acrylate) are used, a mixture of the anti/syn η3-allyl Pd(II) complexes are isolated,
which evolve slowly to the syn isomers by heating
the mixtures appropriately. These η3-allyl Pd(II)
complexes do not react with CO or weak bases, but when they are treated
with a strong base, such as KOtBu, they afford Pd(0) and
the functionalized starting phenethylamines containing a 1,3-butadienyl
substituent in an ortho position. When 2-norbornene
was used instead of terminal alkenes, the strained olefin inserts
into the alkenyl Pd(II) complex to afford a 10-membered norbornyl
palladium(II) complex, in which the new C,N-chelate ligand is coordinated to the metal through an
additional double bond, occupying three coordination positions. The
reactivity of these norbornyl complexes depends on the substituents
on the inserted alkenyl fragment, and thus they can further react
with (1) KOtBu, to give Pd(0) and a tetrahydroisoquinoline
nucleus containing a tricyclo[3.2.1]octyl ring, or (2) CO and TlOTf,
to afford Pd(0) and amino acid derivatives or the corresponding lactones
arising from an intramolecular Michael addition of the CO2H group to the α,β-unsaturated ester moiety. Crystal
structures of every type of compound have been determined by X-ray
diffraction studies.
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Affiliation(s)
- José-Antonio García-López
- Grupo de Química Organometálica, Departamento de Química Inorgánica, Facultad de Química, Universidad de Murcia, E−30100 Murcia, Spain
| | - María-José Oliva-Madrid
- Grupo de Química Organometálica, Departamento de Química Inorgánica, Facultad de Química, Universidad de Murcia, E−30100 Murcia, Spain
| | | | - José Vicente
- Grupo de Química Organometálica, Departamento de Química Inorgánica, Facultad de Química, Universidad de Murcia, E−30100 Murcia, Spain
| | - Isabel Saura-Llamas
- Grupo de Química Organometálica, Departamento de Química Inorgánica, Facultad de Química, Universidad de Murcia, E−30100 Murcia, Spain
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Recent Advances in Palladium-Catalyzed Bridging C–H Activation by Using Alkenes, Alkynes or Diazo Compounds as Bridging Reagents. SYNTHESIS-STUTTGART 2020. [DOI: 10.1055/s-0040-1707268] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
AbstractTransition-metal-catalyzed direct inert C–H bond functionalization has attracted much attention over the past decades. However, because of the high strain energy of the suspected palladacycle generated via C–H bond palladation, direct functionalization of a C–H bond less than a three-bond distance from a catalyst center is highly challenging. In this short review, we summarize the advances on palladium-catalyzed bridging C–H activation, in which an inert proximal C–H bond palladation is promoted by the elementary step of migratory insertion of an alkene, an alkyne or a metal carbene intermediate.1 Introduction2 Palladium-Catalyzed Alkene Bridging C–H Activation2.1 Intramolecular Reactions2.2 Intermolecular Reactions3 Palladium-Catalyzed Alkyne Bridging C–H Activation3.1 Intermolecular Reactions3.2 Intramolecular Reactions4 Palladium-Catalyzed Carbene Bridging C–H Activation5 Conclusion and Outlook
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15
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Zhang H, Yu Y, Huang X. Facile access to 2,2-diaryl 2H-chromenes through a palladium-catalyzed cascade reaction of ortho-vinyl bromobenzenes with N-tosylhydrazones. Org Biomol Chem 2020; 18:5115-5119. [PMID: 32596707 DOI: 10.1039/d0ob00978d] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
A palladium-catalyzed cascade reaction of ortho-vinyl bromobenzenes with N-tosylhydrazones has been developed, which provides a facile approach to 2,2-disubstituted 2H-chromenes. The migration of palladium from the aryl to vinyl position is crucial, as the in situ produced vinyl palladium intermediate could further react with diazo compounds to generate the reactive species for the sequential annulation.
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Affiliation(s)
- Heng Zhang
- Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, Center for Excellence in Molecular Synthesis, Fujian Institute of Research on the Structure of Matter, Fujian College, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China. and University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Yinghua Yu
- Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, Center for Excellence in Molecular Synthesis, Fujian Institute of Research on the Structure of Matter, Fujian College, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China.
| | - Xueliang Huang
- Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, Center for Excellence in Molecular Synthesis, Fujian Institute of Research on the Structure of Matter, Fujian College, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China. and University of Chinese Academy of Sciences, Beijing 100049, P. R. China
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16
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Yamamoto Y, Jiang J, Yasui T. Palladium-Catalyzed [3+2] and [2+2+2] Annulations of 4-Iodo-2-quinolones with Activated Alkynes through Selective C-H Activation. Chemistry 2020; 26:3749-3757. [PMID: 31825122 DOI: 10.1002/chem.201904558] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2019] [Revised: 12/10/2019] [Indexed: 01/30/2023]
Abstract
The palladium-catalyzed reaction of 4-iodo-2-quinolones with activated alkynes was investigated. Cyclopenta[de]quinoline-2(1 H)-ones and/or phenanthridine-6(5 H)-ones were obtained through [3+2] annulation involving aromatic C-H activation or [2+2+2] annulation involving vinylic C-H activation, respectively. Reasonable mechanisms for the formation of these annulation products have been proposed based on density functional theory calculations.
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Affiliation(s)
- Yoshihiko Yamamoto
- Department of Basic Medicinal Sciences, Graduate School of Pharmaceutical Sciences, Nagoya University, Chikusa, Nagoya, 464-8601, Japan
| | - Jiyue Jiang
- Department of Basic Medicinal Sciences, Graduate School of Pharmaceutical Sciences, Nagoya University, Chikusa, Nagoya, 464-8601, Japan
| | - Takeshi Yasui
- Department of Basic Medicinal Sciences, Graduate School of Pharmaceutical Sciences, Nagoya University, Chikusa, Nagoya, 464-8601, Japan
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17
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Saini KM, Saunthwal RK, Sushmita, Verma AK. Transition‐Metal‐Free Reverse Reactivity of (2‐Alkynyl)‐Arylaldimines: Assembly of Functionalized Amino‐Indinones. Chemistry 2020. [DOI: 10.1002/chem.201904294] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Affiliation(s)
| | - Rakesh K. Saunthwal
- Department of ChemistryUniversity of Delhi Delhi 110007 India
- School of ChemistryUniversity of Bristol Bristol BS8 1TS UK
| | - Sushmita
- Department of ChemistryUniversity of Delhi Delhi 110007 India
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18
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Abstract
Allenes represent an extremely important class of organic molecules, which, as
a result of their twisted orthogonal π-systems can possess axial chirality. A wide array of
methods for allene synthesis have been reported, such as the substitution of propargylic
electrophiles, isomerization of alkynes and sigmatropic rearrangement. An alternative approach
for the synthesis of allenes is 1,2-elimination of an appropriately substituted precursor.
This mini-review highlights recent examples of 1,2-elimination processes, which
target allenes including both polar and radical processes. The main focus is upon how control
over the stereospecificity (e.g. syn- or anti-) of the 1,2-elimination process can enable
the synthesis of enantioenriched axially chiral allenes. Recent developments in this field
are presented including both enantiospecific and catalytic asymmetric methods.
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Affiliation(s)
- Roly J. Armstrong
- Department of Chemistry, Chemistry Research Laboratory, University of Oxford, Oxford, OX1 3TA, United Kingdom
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19
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Zhu C, Chu H, Li G, Ma S, Zhang J. Pd-Catalyzed Enantioselective Heck Reaction of Aryl Triflates and Alkynes. J Am Chem Soc 2019; 141:19246-19251. [DOI: 10.1021/jacs.9b10883] [Citation(s) in RCA: 48] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Chenghao Zhu
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, Department of Chemistry, East China Normal University, 3663 North Zhongshan Road, Shanghai 200062, P.R. China
| | - Haoke Chu
- Department of Chemistry, Fudan University, Shanghai 200438, P.R. China
| | - Gen Li
- Department of Chemistry, Fudan University, Shanghai 200438, P.R. China
| | - Shengming Ma
- Department of Chemistry, Fudan University, Shanghai 200438, P.R. China
| | - Junliang Zhang
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, Department of Chemistry, East China Normal University, 3663 North Zhongshan Road, Shanghai 200062, P.R. China
- Department of Chemistry, Fudan University, Shanghai 200438, P.R. China
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20
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Song J, Sun H, Sun W, Fan Y, Li C, Wang H, Xiao K, Qian Y. Synthesis of Indenones via Palladium‐Catalyzed Ligand‐Free Carbonylation. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201901309] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Juan Song
- Key Laboratory for Organic Electronics and Information Display and Institute of Advanced MaterialsNanjing University of Posts and Telecommunications Nanjing 210023, Jiangsu, People's Republic of China
| | - Haisen Sun
- Key Laboratory for Organic Electronics and Information Display and Institute of Advanced MaterialsNanjing University of Posts and Telecommunications Nanjing 210023, Jiangsu, People's Republic of China
| | - Wei Sun
- Key Laboratory for Organic Electronics and Information Display and Institute of Advanced MaterialsNanjing University of Posts and Telecommunications Nanjing 210023, Jiangsu, People's Republic of China
| | - Yuxuan Fan
- Key Laboratory for Organic Electronics and Information Display and Institute of Advanced MaterialsNanjing University of Posts and Telecommunications Nanjing 210023, Jiangsu, People's Republic of China
| | - Cui Li
- Key Laboratory for Organic Electronics and Information Display and Institute of Advanced MaterialsNanjing University of Posts and Telecommunications Nanjing 210023, Jiangsu, People's Republic of China
| | - Haotian Wang
- Key Laboratory for Organic Electronics and Information Display and Institute of Advanced MaterialsNanjing University of Posts and Telecommunications Nanjing 210023, Jiangsu, People's Republic of China
| | - Kang Xiao
- Key Laboratory for Organic Electronics and Information Display and Institute of Advanced MaterialsNanjing University of Posts and Telecommunications Nanjing 210023, Jiangsu, People's Republic of China
| | - Yan Qian
- Key Laboratory for Organic Electronics and Information Display and Institute of Advanced MaterialsNanjing University of Posts and Telecommunications Nanjing 210023, Jiangsu, People's Republic of China
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21
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Kashanna J, Aravind Kumar R, Kishore R. Palladium(ii)-catalyzed synthesis of indenones through the cyclization of benzenecarbaldehydes with internal alkynes. RSC Adv 2019; 9:31162-31168. [PMID: 35529398 PMCID: PMC9072296 DOI: 10.1039/c9ra03921j] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2019] [Accepted: 09/15/2019] [Indexed: 01/15/2023] Open
Abstract
The palladium(ii)-catalyzed carbocyclization of benzenecarbaldehydes with internal alkynes to afford 2,3-disubstituted indenones was reported. The annulation reaction proceeded through the transmetalation of Pd(ii) with an aromatic aldehyde and the insertion of internal alkynes, followed by cyclization via the intramolecular nucleophilic addition of intermediate organopalladium(ii) species to the aldehyde group. This reaction proceeded in moderate to good yields with high regioselectivity.
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Affiliation(s)
- Jajula Kashanna
- Department of Chemistry, Rajiv Gandhi University of Knowledge Technologies Basar 504107 India
| | - Rathod Aravind Kumar
- Organic Synthesis & Process Chemistry Division, CSIR-Indian Institute of Chemical Technology Hyderabad 500007 India
| | - Ravada Kishore
- Department of Chemistry, GITAM (Deemed to be University) Visakhapatnam 530045 India
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22
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Lv W, Chen Y, Zhao Z, Wen S, Cheng G. Palladium-Catalyzed Regioselective Heck Coupling of Alkynes with Aryl Iodides for the Synthesis of Trisubstituted Allenes. Org Lett 2019; 21:7795-7798. [DOI: 10.1021/acs.orglett.9b02749] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Weiwei Lv
- College of Materials Science & Engineering, Huaqiao University, Xiamen 361021, China
| | - Yanhui Chen
- College of Materials Science & Engineering, Huaqiao University, Xiamen 361021, China
| | - Zemin Zhao
- College of Materials Science & Engineering, Huaqiao University, Xiamen 361021, China
| | - Si Wen
- College of Materials Science & Engineering, Huaqiao University, Xiamen 361021, China
| | - Guolin Cheng
- College of Materials Science & Engineering, Huaqiao University, Xiamen 361021, China
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23
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Santhi J, Baire B. An Unusual Conversion of 2‐(Alkynonyl)Alkynylbenzenes to Isocoumarins by a Retro‐Favorskii‐like Degradation. Chem Asian J 2019; 14:3161-3165. [DOI: 10.1002/asia.201900745] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2019] [Revised: 07/23/2019] [Indexed: 12/25/2022]
Affiliation(s)
- Jampani Santhi
- 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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24
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Shen Z, Wang S, Hao W, Yang S, Tu S, Jiang B. Switching between Copper‐Catalysis and Photocatalysis for Tunable Halofluoroalkylation and Hydrofluoroalkylation of 1,6‐Enynes toward 1‐Indenones. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201900559] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Zheng‐Jia Shen
- School of Chemistry and Material Science, Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional MaterialsJiangsu Normal University Xuzhou 221116 People's Republic of China
| | - Shi‐Chao Wang
- School of Chemistry and Material Science, Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional MaterialsJiangsu Normal University Xuzhou 221116 People's Republic of China
| | - Wen‐Juan Hao
- School of Chemistry and Material Science, Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional MaterialsJiangsu Normal University Xuzhou 221116 People's Republic of China
| | - Shi‐Zhao Yang
- Department of Quartermaster and FuelAir Force Logistic College Xuzhou 221000 People's Republic of China
| | - Shu‐Jiang Tu
- School of Chemistry and Material Science, Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional MaterialsJiangsu Normal University Xuzhou 221116 People's Republic of China
| | - Bo Jiang
- School of Chemistry and Material Science, Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional MaterialsJiangsu Normal University Xuzhou 221116 People's Republic of China
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25
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Ramesh K, Satyanarayana G. Domino [Pd]-Catalysis: Heck followed by decarboxylative Sonogashira couplings under microwave irradiation in aqueous medium. J Organomet Chem 2019. [DOI: 10.1016/j.jorganchem.2019.03.015] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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26
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Zhang Y, Sun K, Lv Q, Chen X, Qu L, Yu B. Recent applications of radical cascade reaction in the synthesis of functionalized 1-indenones. CHINESE CHEM LETT 2019. [DOI: 10.1016/j.cclet.2019.03.034] [Citation(s) in RCA: 53] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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27
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Raju S, Hsiao HC, Thirupathi S, Chen PL, Chuang SC. Palladium-Catalyzed Benzofulvenation of o
-Arylanilines through C−H Bond Activation by Using Two Diarylacetylenes as an Implicit Benzofulvene. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201801352] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Selvam Raju
- Department of Applied Chemistry; National Chiao Tung University; 1001 Ta-Hsueh Road Hsinchu Taiwan 30010
| | - Huan-Chang Hsiao
- Department of Applied Chemistry; National Chiao Tung University; 1001 Ta-Hsueh Road Hsinchu Taiwan 30010
| | - Selvakumar Thirupathi
- Department of Applied Chemistry; National Chiao Tung University; 1001 Ta-Hsueh Road Hsinchu Taiwan 30010
| | - Pei-Ling Chen
- Department of Chemistry; National Tsing Hua University; Hsinchu Taiwan 30013
| | - Shih-Ching Chuang
- Department of Applied Chemistry; National Chiao Tung University; 1001 Ta-Hsueh Road Hsinchu Taiwan 30010
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28
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Neff RK, Frantz DE. Cationic Alkynyl Heck Reaction toward Substituted Allenes Using BobCat: A New Hybrid Pd(0)-Catalyst Incorporating a Water-Soluble dba Ligand. J Am Chem Soc 2018; 140:17428-17432. [DOI: 10.1021/jacs.8b11759] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Robynne K. Neff
- Department of Chemistry, The University of Texas at San Antonio, San Antonio, Texas 78249, United States
| | - Doug E. Frantz
- Department of Chemistry, The University of Texas at San Antonio, San Antonio, Texas 78249, United States
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29
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Sun K, Chen XL, Li SJ, Wei DH, Liu XC, Zhang YL, Liu Y, Fan LL, Qu LB, Yu B, Li K, Sun YQ, Zhao YF. Copper-Catalyzed Radical Cascade Cyclization To Access 3-Sulfonated Indenones with the AIE Phenomenon. J Org Chem 2018; 83:14419-14430. [DOI: 10.1021/acs.joc.8b02175] [Citation(s) in RCA: 61] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Kai Sun
- College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou 450001, China
| | - Xiao-Lan Chen
- College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou 450001, China
- The Key Laboratory for Chemical Biology of Fujian Province, Xiamen University, Xiamen 361005, China
| | - Shi-Jun Li
- College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou 450001, China
| | - Dong-Hui Wei
- College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou 450001, China
| | - Xiao-Ceng Liu
- College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou 450001, China
| | - Yin-Li Zhang
- College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou 450001, China
| | - Yan Liu
- College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou 450001, China
- College of Biological and Pharmaceutical Engineering, Xinyang Agriculture & Forestry University, Xinyang, 464000, China
| | - Lu-Lu Fan
- College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou 450001, China
| | - Ling-Bo Qu
- College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou 450001, China
| | - Bing Yu
- College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou 450001, China
| | - Kai Li
- College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou 450001, China
| | - Yuan-Qiang Sun
- College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou 450001, China
| | - Yu-Fen Zhao
- College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou 450001, China
- The Key Laboratory for Chemical Biology of Fujian Province, Xiamen University, Xiamen 361005, China
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30
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Zhou B, Wu Z, Qi W, Sun X, Zhang Y. The Synthesis of Benzofulvenes through Palladium-Catalyzed Sequential Three-Component Reactions. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201801141] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Bo Zhou
- School of Chemical Science and Engineering, Shanghai Key Laboratory of Chemical Assessment and Sustainability; Tongji University; 1239 Siping Road Shanghai 200092 People's Republic of China
| | - Zhuo Wu
- School of Chemical Science and Engineering, Shanghai Key Laboratory of Chemical Assessment and Sustainability; Tongji University; 1239 Siping Road Shanghai 200092 People's Republic of China
| | - Weixin Qi
- School of Chemical Science and Engineering, Shanghai Key Laboratory of Chemical Assessment and Sustainability; Tongji University; 1239 Siping Road Shanghai 200092 People's Republic of China
| | - Xueliang Sun
- School of Chemical Science and Engineering, Shanghai Key Laboratory of Chemical Assessment and Sustainability; Tongji University; 1239 Siping Road Shanghai 200092 People's Republic of China
| | - Yanghui Zhang
- School of Chemical Science and Engineering, Shanghai Key Laboratory of Chemical Assessment and Sustainability; Tongji University; 1239 Siping Road Shanghai 200092 People's Republic of China
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31
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Zhu XT, Lu QL, Wang X, Zhang TS, Hao WJ, Tu SJ, Jiang B. Substrate-Controlled Generation of 3-Sulfonylated 1-Indenones and 3-Arylated (Z)-Indenes via Cu-Catalyzed Radical Cyclization Cascades of o-Alkynylbenzonitriles. J Org Chem 2018; 83:9890-9901. [DOI: 10.1021/acs.joc.8b01343] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Xiao-Tong Zhu
- School of Chemistry and Materials Science, Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, Jiangsu Normal University, Xuzhou 221116, People’s Republic of China
- Department of Chemistry, Xuzhou Medical University, Xuzhou 221004, People’s Republic of China
| | - Qiu-Li Lu
- Department of Chemistry, Xuzhou Medical University, Xuzhou 221004, People’s Republic of China
| | - Xiang Wang
- School of Chemistry and Chemical Engineering, Huaiyin Normal University, Huaian 223300, People’s Republic of China
| | - Tian-Shu Zhang
- School of Chemistry and Materials Science, Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, Jiangsu Normal University, Xuzhou 221116, People’s Republic of China
| | - Wen-Juan Hao
- School of Chemistry and Materials Science, Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, Jiangsu Normal University, Xuzhou 221116, People’s Republic of China
| | - Shu-Jiang Tu
- School of Chemistry and Materials Science, Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, Jiangsu Normal University, Xuzhou 221116, People’s Republic of China
| | - Bo Jiang
- School of Chemistry and Materials Science, Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, Jiangsu Normal University, Xuzhou 221116, People’s Republic of China
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32
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Ramesh K, Satyanarayana G. An Approach to One-Pot Regioselective Synthesis of Indenones through Palladium-Catalyzed Annulation in Water. European J Org Chem 2018. [DOI: 10.1002/ejoc.201800591] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Karu Ramesh
- Indian Institute of Technology (IIT); 502 285, Sangareddy District Hyderabad, Kandi - Telangana India
| | - Gedu Satyanarayana
- Indian Institute of Technology (IIT); 502 285, Sangareddy District Hyderabad, Kandi - Telangana India
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33
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Su Y, Fang X, Zhou J, Bian Y, Yang X, Wu F. Facile synthesis of 2-fluoroindenones via a Knoevenagel condensation/palladium-catalyzed annulation. J Fluor Chem 2018. [DOI: 10.1016/j.jfluchem.2018.04.009] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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34
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Zhu XT, Zhang TS, Zhao Q, Cai PJ, Hao WJ, Tu SJ, Jiang B. Sulfinate-Salt-Mediated Radical Relay Cyclization of Cyclic Ethers with 2-Alkynylbenzonitriles toward 3-Alkylated 1-Indenones. Chem Asian J 2018. [DOI: 10.1002/asia.201800211] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Xiao-Tong Zhu
- School of Chemical Engineering & Technology; China University of Mining and Technology; Xuzhou 221116 P. R. China
- Department of Chemistry; Xuzhou Medical University; Xuzhou 221004 P. R. China
- School of Chemistry and Materials Science; Jiangsu Normal University; Xuzhou 221116 P. R. China
| | - Tian-Shu Zhang
- School of Chemical Engineering & Technology; China University of Mining and Technology; Xuzhou 221116 P. R. China
| | - Qi Zhao
- School of Chemistry and Materials Science; Jiangsu Normal University; Xuzhou 221116 P. R. China
| | - Pei-Jun Cai
- School of Chemical Engineering & Technology; China University of Mining and Technology; Xuzhou 221116 P. R. China
| | - Wen-Juan Hao
- School of Chemistry and Materials Science; Jiangsu Normal University; Xuzhou 221116 P. R. China
| | - Shu-Jiang Tu
- School of Chemistry and Materials Science; Jiangsu Normal University; Xuzhou 221116 P. R. China
| | - Bo Jiang
- School of Chemistry and Materials Science; Jiangsu Normal University; Xuzhou 221116 P. R. China
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35
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Zhou B, Chen W, Yang Y, Yang Y, Deng G, Liang Y. A radical cyclization cascade of 2-alkynylbenzonitriles with sodium arylsulfinates. Org Biomol Chem 2018; 16:7959-7963. [DOI: 10.1039/c8ob02288g] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
We report an efficient approach to synthesize sulfonated indenones via a radical cascade cyclization of 2-alkynylbenzonitriles with sodium arylsulfinates.
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Affiliation(s)
- Bang Zhou
- National & Local Joint Engineering Laboratory for New Petro-chemical Materials and Fine Utilization of Resources
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research
- Ministry of Education
- Key Laboratory of the Assembly and Application of Organic Functional Molecules of Hunan Province
- China
| | - Wenqi Chen
- National & Local Joint Engineering Laboratory for New Petro-chemical Materials and Fine Utilization of Resources
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research
- Ministry of Education
- Key Laboratory of the Assembly and Application of Organic Functional Molecules of Hunan Province
- China
| | - Yuzhong Yang
- National & Local Joint Engineering Laboratory for New Petro-chemical Materials and Fine Utilization of Resources
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research
- Ministry of Education
- Key Laboratory of the Assembly and Application of Organic Functional Molecules of Hunan Province
- China
| | - Yuan Yang
- National & Local Joint Engineering Laboratory for New Petro-chemical Materials and Fine Utilization of Resources
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research
- Ministry of Education
- Key Laboratory of the Assembly and Application of Organic Functional Molecules of Hunan Province
- China
| | - Guobo Deng
- National & Local Joint Engineering Laboratory for New Petro-chemical Materials and Fine Utilization of Resources
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research
- Ministry of Education
- Key Laboratory of the Assembly and Application of Organic Functional Molecules of Hunan Province
- China
| | - Yun Liang
- National & Local Joint Engineering Laboratory for New Petro-chemical Materials and Fine Utilization of Resources
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research
- Ministry of Education
- Key Laboratory of the Assembly and Application of Organic Functional Molecules of Hunan Province
- China
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36
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Shen ZJ, Wu YN, He CL, He L, Hao WJ, Wang AF, Tu SJ, Jiang B. Stereoselective synthesis of sulfonated 1-indenones via radical-triggered multi-component cyclization of β-alkynyl propenones. Chem Commun (Camb) 2018; 54:445-448. [DOI: 10.1039/c7cc08516h] [Citation(s) in RCA: 92] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
New radical-triggered multi-component cyclizations of β-alkynyl propenones have been developed, leading to 50 examples of sulfonated 1-indenones with generally good yields and high levels of stereoselectivity.
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Affiliation(s)
- Zheng-Jia Shen
- School of Chemistry & Materials Science
- Jiangsu Normal University
- Xuzhou
- P. R. China
| | - Ya-Nan Wu
- School of Chemistry & Materials Science
- Jiangsu Normal University
- Xuzhou
- P. R. China
| | - Chun-Lan He
- School of Chemistry & Materials Science
- Jiangsu Normal University
- Xuzhou
- P. R. China
| | - Long He
- School of Chemistry & Materials Science
- Jiangsu Normal University
- Xuzhou
- P. R. China
| | - Wen-Juan Hao
- School of Chemistry & Materials Science
- Jiangsu Normal University
- Xuzhou
- P. R. China
| | - Ai-Fang Wang
- School of Chemistry & Materials Science
- Jiangsu Normal University
- Xuzhou
- P. R. China
| | - Shu-Jiang Tu
- School of Chemistry & Materials Science
- Jiangsu Normal University
- Xuzhou
- P. R. China
| | - Bo Jiang
- School of Chemistry & Materials Science
- Jiangsu Normal University
- Xuzhou
- P. R. China
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37
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Zhu XT, Zhao Q, Liu F, Wang AF, Cai PJ, Hao WJ, Tu SJ, Jiang B. Silver-mediated radical 5-exo-dig cyclization of 2-alkynylbenzonitriles: synthesis of phosphinylated 1-indenones. Chem Commun (Camb) 2017; 53:6828-6831. [DOI: 10.1039/c7cc01666b] [Citation(s) in RCA: 52] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new silver-mediated 5-exo-dig cyclization of 2-alkynylbenzonitriles with disubstituted phosphine oxide and H2O has been developed.
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Affiliation(s)
- Xiao-Tong Zhu
- School of Chemistry and Materials Science
- Jiangsu Normal University
- Xuzhou
- P. R. China
- School of Chemical Engineering & Technology
| | - Qi Zhao
- School of Chemistry and Materials Science
- Jiangsu Normal University
- Xuzhou
- P. R. China
| | - Feng Liu
- School of Chemistry and Materials Science
- Jiangsu Normal University
- Xuzhou
- P. R. China
| | - Ai-Fang Wang
- School of Chemistry and Materials Science
- Jiangsu Normal University
- Xuzhou
- P. R. China
| | - Pei-Jun Cai
- School of Chemical Engineering & Technology
- China University of Mining and Technology
- Xuzhou
- P. R. China
| | - Wen-Juan Hao
- School of Chemistry and Materials Science
- Jiangsu Normal University
- Xuzhou
- P. R. China
| | - Shu-Jiang Tu
- School of Chemistry and Materials Science
- Jiangsu Normal University
- Xuzhou
- P. R. China
| | - Bo Jiang
- School of Chemistry and Materials Science
- Jiangsu Normal University
- Xuzhou
- P. R. China
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38
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Le CM, Sperger T, Fu R, Hou X, Lim YH, Schoenebeck F, Lautens M. Stereoselective Synthesis of Methylene Oxindoles via Palladium(II)-Catalyzed Intramolecular Cross-Coupling of Carbamoyl Chlorides. J Am Chem Soc 2016; 138:14441-14448. [PMID: 27700076 DOI: 10.1021/jacs.6b08925] [Citation(s) in RCA: 53] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
We report a highly robust, general and stereoselective method for the synthesis of 3-(chloromethylene)oxindoles from alkyne-tethered carbamoyl chlorides using PdCl2(PhCN)2 as the catalyst. The transformation involves a stereo- and regioselective chloropalladation of an internal alkyne to generate a nucleophilic vinyl PdII species, which then undergoes an intramolecular cross-coupling with a carbamoyl chloride. The reaction proceeds under mild conditions, is insensitive to the presence of moisture and air, and is readily scalable. The products obtained from this reaction are formed with >95:5 Z:E selectivity in nearly all cases and can be used to access biologically relevant oxindole cores. Through combined experimental and computational studies, we provide insight into stereo- and regioselectivity of the chloropalladation step, as well as the mechanism for the C-C bond forming process. Calculations provide support for a mechanism involving oxidative addition into the carbamoyl chloride bond to generate a high valent PdIV species, which then undergoes facile C-C reductive elimination to form the final product. Overall, the transformation constitutes a formal PdII-catalyzed intramolecular alkyne chlorocarbamoylation reaction.
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Affiliation(s)
- Christine M Le
- Davenport Research Laboratories, Department of Chemistry, University of Toronto , 80 St. George Street, Toronto, Ontario M5S 3H6, Canada
| | - Theresa Sperger
- Institute of Organic Chemistry, RWTH Aachen University , Landoltweg 1, 52074 Aachen, Germany
| | - Rui Fu
- Davenport Research Laboratories, Department of Chemistry, University of Toronto , 80 St. George Street, Toronto, Ontario M5S 3H6, Canada
| | - Xiao Hou
- Davenport Research Laboratories, Department of Chemistry, University of Toronto , 80 St. George Street, Toronto, Ontario M5S 3H6, Canada
| | - Yong Hwan Lim
- Davenport Research Laboratories, Department of Chemistry, University of Toronto , 80 St. George Street, Toronto, Ontario M5S 3H6, Canada
| | - Franziska Schoenebeck
- Institute of Organic Chemistry, RWTH Aachen University , Landoltweg 1, 52074 Aachen, Germany
| | - Mark Lautens
- Davenport Research Laboratories, Department of Chemistry, University of Toronto , 80 St. George Street, Toronto, Ontario M5S 3H6, Canada
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39
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Kashanna J, Nagaraju K, Kumara Swamy K. Palladium catalyzed carboannulation of nitrostyrenes with internal alkynes: a new synthetic strategy for cross coupling/C–H annulation and facile access to indenones. Tetrahedron Lett 2016. [DOI: 10.1016/j.tetlet.2016.02.100] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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40
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Kumar A, Shinde SS, Tiwari DK, Sridhar B, Likhar PR. Palladium catalyzed domino reaction of 1,4-disubstituted 1,2,3-triazoles via double C–H functionalization: one-pot synthesis of triazolo[1,5-f]phenanthridines. RSC Adv 2016. [DOI: 10.1039/c6ra06755g] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
A palladium catalyzed domino reaction of 1,4-disubstituted triazoles involving homo- and heterocondensation is presented. The approach provides a simple, straight forward and a facile route to access triazolo[1,5-f]phenanthridines in high yields.
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Affiliation(s)
- Avnish Kumar
- Organometallic Gp
- Inorganic and Physical Chemistry Division
- CSIR-Indian Institute of Chemical Technology
- Hyderabad-500007
- India
| | - Sundar S. Shinde
- Organometallic Gp
- Inorganic and Physical Chemistry Division
- CSIR-Indian Institute of Chemical Technology
- Hyderabad-500007
- India
| | - Dharmendra Kumar Tiwari
- Organometallic Gp
- Inorganic and Physical Chemistry Division
- CSIR-Indian Institute of Chemical Technology
- Hyderabad-500007
- India
| | - Balasubramanian Sridhar
- X-ray Crystallography Centre
- CSIR-Indian Institute of Chemical Technology
- Hyderabad-500007
- India
| | - Pravin R. Likhar
- Organometallic Gp
- Inorganic and Physical Chemistry Division
- CSIR-Indian Institute of Chemical Technology
- Hyderabad-500007
- India
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41
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Liu H, Yang Y, Wu J, Wang XN, Chang J. Regioselective synthesis of 3,4-disubstituted isocoumarins through the Pd-catalyzed annulation of 2-iodoaromatic acids with ynamides. Chem Commun (Camb) 2016; 52:6801-4. [DOI: 10.1039/c6cc01565d] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A Pd(0)-catalyzed annulation of 2-iodoaromatic acids with ynamides is described for the efficient synthesis of 3,4-disubstituted isocoumarins with excellent regioselectivities.
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Affiliation(s)
- Hongxu Liu
- College of Chemistry and Molecular Engineering
- Zhengzhou University
- Zhengzhou
- P. R. China
| | - Yanyan Yang
- College of Chemistry and Molecular Engineering
- Zhengzhou University
- Zhengzhou
- P. R. China
| | - Jie Wu
- College of Chemistry and Molecular Engineering
- Zhengzhou University
- Zhengzhou
- P. R. China
| | - Xiao-Na Wang
- Collaborative Innovation Center of New Drug Research and Safety Evaluation
- Henan Province, and School of Pharmaceutical Sciences
- Zhengzhou University
- Zhengzhou
- P. R. China
| | - Junbiao Chang
- Collaborative Innovation Center of New Drug Research and Safety Evaluation
- Henan Province, and School of Pharmaceutical Sciences
- Zhengzhou University
- Zhengzhou
- P. R. China
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42
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Shin I, Ramgren SD, Krische MJ. Reductive Cyclization of Halo-Ketones to Form 3-Hydroxy-2-Oxindoles via Palladium Catalyzed Hydrogenation: A Hydrogen-Mediated Grignard Addition. Tetrahedron 2015; 71:5776-5780. [PMID: 26273111 PMCID: PMC4528639 DOI: 10.1016/j.tet.2015.05.085] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The reductive cyclization of N-oxoacyl ortho-bromoanilides to form 3-hydroxy-2-oxindoles under the conditions of palladium catalyzed hydrogenation is described. This work may be viewed as a prelude to intermolecular hydrogen-mediated Grignard-type reductive couplings of organic halides with carbonyl compounds.
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Affiliation(s)
- Inji Shin
- Department of Chemistry, University of Texas at Austin, Austin, Texas 78712, USA
| | - Stephen D. Ramgren
- Department of Chemistry, University of Texas at Austin, Austin, Texas 78712, USA
| | - Michael J. Krische
- Department of Chemistry, University of Texas at Austin, Austin, Texas 78712, USA
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43
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Chanda T, Chowdhury S, Koley S, Anand N, Singh MS. Thionyl chloride mediated dehydroxylation of 3-hydroxyindanones to indenones. Tetrahedron Lett 2015. [DOI: 10.1016/j.tetlet.2015.05.112] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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44
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Dorn SCM, Olsen AK, Kelemen RE, Shrestha R, Weix DJ. Nickel-catalyzed reductive arylation of activated alkynes with aryl iodides. Tetrahedron Lett 2015; 56:3365-3367. [PMID: 26028781 PMCID: PMC4446700 DOI: 10.1016/j.tetlet.2015.02.120] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
The direct, regioselective, and stereoselective arylation of activated alkynes with aryl iodides using a nickel catalyst and manganese reductant is described. The reaction conditions are mild (40 °C in MeOH, no acid or base) and an intermediate organomanganese reagent is unlikely. Functional groups tolerated include halides and pseudohalides, free and protected anilines, and a benzyl alcohol. Other activated alkynes including an amide and a ketone also reacted to form arylated products in good yields.
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Affiliation(s)
- Stephanie C. M. Dorn
- Department of Chemistry, University of Rochester, 120 Trustee Road, Rochester, NY 14627, USA
| | - Andrew K Olsen
- Department of Chemistry, University of Rochester, 120 Trustee Road, Rochester, NY 14627, USA
| | | | | | - Daniel J. Weix
- Department of Chemistry, University of Rochester, 120 Trustee Road, Rochester, NY 14627, USA
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45
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Fernández-Rodrı́guez MJ, Martı́nez-Viviente E, Vicente J, Jones PG. Mono- and Dipalladated Derivatives of 2,5-Distyrylbenzene. Reactivity toward XyNC and Alkynes. Synthesis of Complexes with Indacenediide Ligands. Organometallics 2014. [DOI: 10.1021/om5010034] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Marı́a-José Fernández-Rodrı́guez
- Grupo de
Quı́mica
Organometálica, Dpto. de Quı́mica Inorgánica,
Facultad de Quı́mica, Universidad de Murcia, Apdo. 4021, 30071, Murcia, Spain
| | - Eloı́sa Martı́nez-Viviente
- Grupo de
Quı́mica
Organometálica, Dpto. de Quı́mica Inorgánica,
Facultad de Quı́mica, Universidad de Murcia, Apdo. 4021, 30071, Murcia, Spain
| | - José Vicente
- Grupo de
Quı́mica
Organometálica, Dpto. de Quı́mica Inorgánica,
Facultad de Quı́mica, Universidad de Murcia, Apdo. 4021, 30071, Murcia, Spain
| | - Peter G. Jones
- Institut für Anorganische
und Analytische Chemie der Technischen Universität Braunschweig. Postfach 3329, 38023, Braunschweig, Germany
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46
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Xia G, Han X, Lu X. Efficient Synthesis of Heterocyle-Fused β-Naphthylamines via Intramolecular Addition to a Cyano Group Initiated by Nucleopalladation of Alkynes. Org Lett 2014; 16:6184-7. [DOI: 10.1021/ol5031074] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Guoqin Xia
- State Key Laboratory of Organometallic
Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai, 200032, China
| | - Xiuling Han
- State Key Laboratory of Organometallic
Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai, 200032, China
| | - Xiyan Lu
- State Key Laboratory of Organometallic
Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai, 200032, China
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47
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Rao ML, Dhanorkar RJ. Combined catalysis: Pd-catalyzed two-step one-pot protocol for 2,3-diaryl-1-indenones involving domino synthesis of diarylacetylenes and Heck–Larock annulations. Tetrahedron 2014. [DOI: 10.1016/j.tet.2014.08.031] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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48
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Saxena P, Thirupathi N, Nethaji M. Depalladation of Neutral Monoalkyne- and Dialkyne-Inserted Palladacycles and Alkyne Insertion/Depalladation Reactions of Cationic Palladacycles Derived from N,N′,N″-Triarylguanidines as Facile Routes for Guanidine-Containing Heterocycles/Carbocycles: Synthetic, Structural, and Mechanistic Aspects. Organometallics 2014. [DOI: 10.1021/om500837v] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Priya Saxena
- Department
of Chemistry, University of Delhi, Delhi 110 007, India
| | | | - Munirathinam Nethaji
- Department
of Inorganic and Physical Chemistry, Indian Institute of Science, Bangalore 560 012, India
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49
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Nella N, Parker E, Hitce J, Larini P, Jazzar R, Baudoin O. Efficient Pd-Catalyzed Allene Synthesis from Alkynes and Aryl Bromides through an Intramolecular Base-Assisted Deprotonation (iBAD) Mechanism. Chemistry 2014; 20:13272-8. [DOI: 10.1002/chem.201403213] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2014] [Indexed: 12/31/2022]
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50
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Miles KC, Le CC, Stambuli JP. Direct carbocyclizations of benzoic acids: catalyst-controlled synthesis of cyclic ketones and the development of tandem aHH (acyl Heck-Heck) reactions. Chemistry 2014; 20:11336-9. [PMID: 25047136 DOI: 10.1002/chem.201403561] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2014] [Indexed: 11/11/2022]
Abstract
The formation of exo-methylene indanones and indenones from simple ortho-allyl benzoic acid derivatives has been developed. Selective formation of the indanone or indenone products in these reactions is controlled by choice of ancillary ligand. This new process has a low environmental footprint as the products are formed in high yields using low catalyst loadings, while the only stoichiometric chemical waste generated from the reactants in the transformation is acetic acid. The conversion of the active cyclization catalyst into the Hermman-Beller palladacycle was exploited in a one-pot tandem acyl Heck-Heck (aHH) reaction, and utilized in the synthesis of donepezil.
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Affiliation(s)
- Kelsey C Miles
- Department of Chemistry and Biochemistry, The Ohio State University, 88 West 18th Avenue, Columbus, OH 43210 (USA)
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