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Wu K, Wu C, Jia XY, Zhou L, Li QH. Highly selective cross-coupling reactions of 1,1-dibromoethylenes with alkynylaluminums for the synthesis of aryl substituted conjugated enediynes and unsymmetrical 1,3-diynes. RSC Adv 2022; 12:13314-13318. [PMID: 35520111 PMCID: PMC9062886 DOI: 10.1039/d2ra02127g] [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: 04/02/2022] [Accepted: 04/25/2022] [Indexed: 11/21/2022] Open
Abstract
A highly efficient method for the synthesis of aryl substituted conjugated enediynes and unsymmetrical 1,3-diynes via selective cross-coupling reactions of 1,1-dibromoethylenes with alkynylaluminums using the Pd(OAc)2-DPPE and Pd2(dba)3-TFP complexes as catalysts, respectively, has been successfully developed. Though the alkyl substituted conjugated enediynes and unsymmetrical 1,3-diynes were not obtained, this case is also remarkable as the same starting materials could selectively produce either aryl substituted conjugated enediynes or unsymmetrical 1,3-diynes in moderate to excellent yields (up to 99%) in the different Pd-phosphine catalytic systems.
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Affiliation(s)
- Kun Wu
- Key Laboratory of General Chemistry of the National Ethnic Affairs Commission, College of Chemistry and Environment, Southwest Minzu University Chengdu 610041 P. R. China
| | - Chuan Wu
- Key Laboratory of General Chemistry of the National Ethnic Affairs Commission, College of Chemistry and Environment, Southwest Minzu University Chengdu 610041 P. R. China
| | - Xiao-Ying Jia
- Key Laboratory of General Chemistry of the National Ethnic Affairs Commission, College of Chemistry and Environment, Southwest Minzu University Chengdu 610041 P. R. China
| | - Lin Zhou
- Key Laboratory of General Chemistry of the National Ethnic Affairs Commission, College of Chemistry and Environment, Southwest Minzu University Chengdu 610041 P. R. China
| | - Qing-Han Li
- Key Laboratory of General Chemistry of the National Ethnic Affairs Commission, College of Chemistry and Environment, Southwest Minzu University Chengdu 610041 P. R. China
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2
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Brown SJ, Drummond CJ, Marchand J, Marcuccio SM, Stockton KP, Greaves TL. Physicochemical characterisation of novel tetrabutylammonium aryltrifluoroborate ionic liquids. Phys Chem Chem Phys 2020; 22:23374-23384. [PMID: 33047742 DOI: 10.1039/d0cp03994b] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
While there have been many studies on the physicochemical characterisation of ILs, little work has previously been reported on the properties unique to the trifluoroborate anion. Here we have characterised the thermal properties, viscosity, liquid nanostructure and intramolecular interactions of 15 novel aryltrifluoroborate ILs. These ILs all contained a tetrabutylammonium cation paired with either meta- or para-substituted aryltrifluoroborate anions, or di-anionic substituted aryltrifluroborate anions. It was found that of the 15 samples analysed, 4 would technically be considered molten salts as they have melting points greater than 100 °C. Overall the structure-property relationship trends of these samples are similar to those previously reported for alkyl and perfluoroalkyltrifluoroborate ILs which contained K+ or Cs+ cations, with the big difference being the ILs in this study having considerably lower melting points.
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Affiliation(s)
- Stuart J Brown
- College of Science, Engineering and Health, RMIT University, 124 La Trobe Street, Melbourne, Victoria, Australia.
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3
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Garkhedkar AM, Chiang Y, Senadi GC, Wang J, Hu W. DBU‐Promoted Synthesis of 1,3‐Benzoxazines from Geminal Dibromo Olefins: Applications to the Construction of
o
‐Amido Phenacyl Bromides. ChemistrySelect 2020. [DOI: 10.1002/slct.202000667] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Amol Milind Garkhedkar
- Department of Medicinal and Applied ChemistryKaohsiung Medical University No. 100, Shiquan 1st Rd Sanmin District Kaohsiung City 807 Taiwan
| | - Ya‐Chi Chiang
- Department of Medicinal and Applied ChemistryKaohsiung Medical University No. 100, Shiquan 1st Rd Sanmin District Kaohsiung City 807 Taiwan
| | - Gopal Chandru Senadi
- Department of Medicinal and Applied ChemistryKaohsiung Medical University No. 100, Shiquan 1st Rd Sanmin District Kaohsiung City 807 Taiwan
| | - Jeh‐Jeng Wang
- Department of Medicinal and Applied ChemistryKaohsiung Medical University No. 100, Shiquan 1st Rd Sanmin District Kaohsiung City 807 Taiwan
- Department of Medical ResearchKaohsiung Medical University Hospital No. 100, Tzyou 1st Rd Sanmin District Kaohsiung City 807 Taiwan
| | - Wan‐Ping Hu
- Department of BiotechnologyKaohsiung Medical University No. 100, Shiquan 1st Rd Sanmin District Kaohsiung City 807 Taiwan
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Hayes TOP, Slater B, Horan RAJ, Radigois M, Wilden JD. A novel sulfonamide non-classical carbenoid: a mechanistic study for the synthesis of enediynes. Org Biomol Chem 2017; 15:9895-9902. [PMID: 29155912 DOI: 10.1039/c7ob02437a] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Alkynyl sulfonamides undergo sequential 1,4- then 1,2-addition/rearrangement with lithium acetylides to yield enediynes in the absence of any promoters or catalysts. Mechanistic investigations suggest that the reaction proceeds via 1,4-conjugate addition of the nucleophile to the unsaturated system to give a key alkenyl lithium species which is stabilised by an intramolecular coordination effect by a sulfonamide oxygen atom. This species can be considered a vinylidene carbenoid given the carbon atom bears both an anion (as a vinyllithium) and a leaving group (the sulfonamide). The intramolecular coordination effect serves to stabilise the vinyllithium but activates the sulfonamide motif towards nucleophilic attack by a second mole of acetylide. The resulting species can then undergo rearrangement to yield the enediyne framework in a single operation with concomitant loss of aminosulfinate.
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Affiliation(s)
- Theodore O P Hayes
- Department of Chemistry, University College London, 20 Gordon Street, London WC1H 0AJ, UK.
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5
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A Reusable Palladium/Cationic 2,2′-Bipyridyl System-Catalyzed Double Mizoroki-Heck Reaction in Water. Catalysts 2017. [DOI: 10.3390/catal7060177] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
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6
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Rabie R, Hammouda MM, Elattar KM. Cesium carbonate as a mediated inorganic base in some organic transformations. RESEARCH ON CHEMICAL INTERMEDIATES 2016. [DOI: 10.1007/s11164-016-2744-z] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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7
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Palladium-free synthesis of unsymmetrical diarylethynes by cross-coupling reaction of alkynylboronates with aryl iodides catalyzed by CuCl. Tetrahedron Lett 2013. [DOI: 10.1016/j.tetlet.2012.11.069] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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8
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Zhu Y, Sun P, Yang H, Lu L, Yan H, Creus M, Mao J. Effective Palladium-Catalyzed Synthesis of Triarylethene-Based Molecules in Aqueous Solution. European J Org Chem 2012. [DOI: 10.1002/ejoc.201200577] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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9
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Synthesis of 2-bromo-1H-indenes via copper-catalyzed intramolecular cross-coupling of gem-dibromoolefins. Tetrahedron Lett 2012. [DOI: 10.1016/j.tetlet.2011.11.102] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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10
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11
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Chelucci G. Synthesis and Metal-Catalyzed Reactions of gem-Dihalovinyl Systems. Chem Rev 2011; 112:1344-462. [DOI: 10.1021/cr200165q] [Citation(s) in RCA: 323] [Impact Index Per Article: 24.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Giorgio Chelucci
- Dipartimento di Agraria, Università di Sassari, viale Italia 39, I-07100 Sassari, Italy
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12
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Nazario CE, Santana AS, Kawasoko CY, Carollo CA, Hurtado GR, Viana LH, Barbosa SL, Guerrero PG, Marques FA, Dabdoub VB, Dabdoub MJ, Baroni AC. Synthesis of (Z)-tributylstannyl enynes: systematic studies of Sonogashira cross-coupling reactions between (E)-1-iodovinyl-1-tributylstannanes and terminal acetylenes using amines or tetrabutylammonium hydroxide (TBAOH) as activator. Tetrahedron Lett 2011. [DOI: 10.1016/j.tetlet.2011.06.004] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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13
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Partyka DV. Transmetalation of Unsaturated Carbon Nucleophiles from Boron-Containing Species to the Mid to Late d-Block Metals of Relevance to Catalytic C−X Coupling Reactions (X = C, F, N, O, Pb, S, Se, Te). Chem Rev 2011; 111:1529-95. [DOI: 10.1021/cr1002276] [Citation(s) in RCA: 251] [Impact Index Per Article: 19.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- David V. Partyka
- Creative Chemistry LLC, 2074 Adelbert Road, Cleveland, Ohio 44106, United States
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14
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Legrand F, Jouvin K, Evano G. Vinyl Dibromides: Versatile Partners in Cross-Coupling Reactions. Isr J Chem 2010. [DOI: 10.1002/ijch.201000037] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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15
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Jouvin K, Couty F, Evano G. Copper-catalyzed alkynylation of amides with potassium alkynyltrifluoroborates: a room-temperature, base-free synthesis of ynamides. Org Lett 2010; 12:3272-5. [PMID: 20565123 DOI: 10.1021/ol101322k] [Citation(s) in RCA: 81] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
An efficient copper-mediated method for the coupling of potassium alkynyltrifluoroborates with nitrogen nucleophiles is reported. This reaction provides the first base-free and room-temperature synthesis of ynamides and allows for an easy preparation of these useful building blocks.
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Affiliation(s)
- Kévin Jouvin
- Institut Lavoisier de Versailles, UMR CNRS 8180, Université de Versailles Saint-Quentin en Yvelines, 45, avenue des Etats-Unis, 78035 Versailles Cedex, France
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16
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Struble JR, Lee SJ, Burke MD. Ethynyl MIDA boronate: a readily accessible and highly versatile building block for small molecule synthesis. Tetrahedron 2010. [DOI: 10.1016/j.tet.2010.04.020] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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17
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Gu S, Xu H, Zhang N, Chen W. Triazole-Functionalized N-Heterocyclic Carbene Complexes of Palladium and Platinum and Efficient Aqueous Suzuki-Miyaura Coupling Reaction. Chem Asian J 2010; 5:1677-86. [DOI: 10.1002/asia.201000071] [Citation(s) in RCA: 100] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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18
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Ye S, Yang X, Wu J. Rapid access to 1-methyleneindenes via palladium-catalyzed tandem reactions of 1-(2,2-dibromovinyl)-2-alkynylbenzenes with arylboronic acids. Chem Commun (Camb) 2010; 46:2950-2. [DOI: 10.1039/b926763h] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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19
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Bellomo A, Weber M, Gonzalez D, Stefani HA. Consecutive biocatalysis-palladium catalysis II: Synthesis of conduritol-alkyne conjugates. CATAL COMMUN 2009. [DOI: 10.1016/j.catcom.2009.05.001] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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20
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Yamamoto Y, Takada S, Miyaura N, Iyama T, Tachikawa H. γ-Selective Cross-Coupling Reactions of Potassium Allyltrifluoroborates with Haloarenes Catalyzed by a Pd(0)/D-t-BPF or Pd(0)/Josiphos ((R,S)-CyPF-t-Bu) Complex: Mechanistic Studies on Transmetalation and Enantioselection. Organometallics 2008. [DOI: 10.1021/om800832r] [Citation(s) in RCA: 75] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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21
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Chelucci G, Capitta F, Baldino S. Synthesis of internal alkynes via one-pot palladium-catalyzed and dehydrobromination reactions of 1,1-dibromo-1-alkenes. Tetrahedron 2008. [DOI: 10.1016/j.tet.2008.08.020] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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22
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Sun C, Xu B. A Tandem Elimination−Cyclization−Suzuki Approach: Efficient One-Pot Synthesis of Functionalized (Z)-3-(Arylmethylene)isoindolin-1-ones. J Org Chem 2008; 73:7361-4. [PMID: 18698822 DOI: 10.1021/jo801219j] [Citation(s) in RCA: 85] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Caiyun Sun
- Department of Chemistry, Shanghai University, Shanghai 200444, China
| | - Bin Xu
- Department of Chemistry, Shanghai University, Shanghai 200444, China
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23
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Riveiros R, Saya L, Pérez Sestelo J, Sarandeses LA. Palladium-Catalysed Cross-Coupling Reactions of Triorganoindium Reagents with Alkenyl Halides. European J Org Chem 2008. [DOI: 10.1002/ejoc.200701216] [Citation(s) in RCA: 47] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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24
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Liu F, Evans T, Das BC. Synthesis of 2-substituted 2H-chromenes using potassium vinyltrifluoroborates. Tetrahedron Lett 2008; 49:1578-1581. [PMID: 21753857 PMCID: PMC3132890 DOI: 10.1016/j.tetlet.2008.01.008] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
2H-Chromenes were synthesized from salicylaldehyde using potassium vinylic borates in the presence of secondary amines. We synthesized these 2H-chromene derivatives as a part of an ongoing project to develop inhibitors for TGF-β receptors. Potassium vinyl trifluoroborates react with salicylaldehydes at 80 °C in the presence of a secondary amine and produced 2-substituted 2H-chromene derivatives with a 70-90% yield.
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Affiliation(s)
- Fei Liu
- Department of Nuclear Medicine Albert Einstein College of Medicine, Bronx, NY 10461, United States
| | - Todd Evans
- Department of Developmental and Molecular Biology, Albert Einstein College of Medicine, Bronx, NY 10461, United States
| | - Bhaskar C. Das
- Department of Nuclear Medicine Albert Einstein College of Medicine, Bronx, NY 10461, United States
- Department of Developmental and Molecular Biology, Albert Einstein College of Medicine, Bronx, NY 10461, United States
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26
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Zhang HJ, Song Z, Wang C, Bruneau C, Xi Z. Synthesis of stereo-defined 1,1,4,4-tetrahalo- and 1,1,4,4-mixed-tetrahalo-1,3-butadienes. Tetrahedron Lett 2008. [DOI: 10.1016/j.tetlet.2007.11.152] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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27
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Darses S, Genet JP. Potassium Organotrifluoroborates: New Perspectives in Organic Synthesis. Chem Rev 2007; 108:288-325. [PMID: 18095714 DOI: 10.1021/cr0509758] [Citation(s) in RCA: 582] [Impact Index Per Article: 34.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Sylvain Darses
- Laboratoire de Synthèse Sélective Organique et Produits Naturels (UMR 7573, CNRS), Ecole Nationale Supérieure de Chimie de Paris, 11 rue P&M Curie, 75231 Paris Cedex 05, France
| | - Jean-Pierre Genet
- Laboratoire de Synthèse Sélective Organique et Produits Naturels (UMR 7573, CNRS), Ecole Nationale Supérieure de Chimie de Paris, 11 rue P&M Curie, 75231 Paris Cedex 05, France
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28
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Zirconocene-promoted coupling reaction of terminal acetylenes to geminal enediynes in the presence of p-chloranil. J Organomet Chem 2007. [DOI: 10.1016/j.jorganchem.2007.04.028] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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29
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Chelucci G, Capitta F, Baldino S, Pinna GA. One-pot conversion of 1,1-dibromoalkenes into internal alkynes by sequential Suzuki–Miyaura and dehydrobromination reactions. Tetrahedron Lett 2007. [DOI: 10.1016/j.tetlet.2007.07.050] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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30
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Fayol A, Fang YQ, Lautens M. Synthesis of 2-vinylic indoles and derivatives via a Pd-catalyzed tandem coupling reaction. Org Lett 2007; 8:4203-6. [PMID: 16956187 DOI: 10.1021/ol061374l] [Citation(s) in RCA: 164] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A novel one-step synthesis of valuable 2-vinylic indoles and their tricycle derivatives is described. This reaction, which utilizes a gem-dibromovinyl unit as a readily available starting material, occurs via an efficient Pd-catalyzed tandem Buchwald-Hartwig/Heck reaction.
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Affiliation(s)
- Aude Fayol
- Davenport Research Laboratories, Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario M5S 3H6, Canada
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31
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32
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Yamamoto Y, Takada S, Miyaura N. Asymmetric Cross-coupling of Potassium 2-Butenyltrifluoroborates with Aryl and 1-Alkenyl Bromides Catalyzed by a Pd(OAc)2/Josiphos Complex. CHEM LETT 2006. [DOI: 10.1246/cl.2006.1368] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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33
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Kabalka GW, Dadush E, Al-Masum M. Microwave-enhanced cross-coupling of allyl chlorides with vinyltrifluoroborates. Tetrahedron Lett 2006. [DOI: 10.1016/j.tetlet.2006.08.043] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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