51
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Queirolo M, Vezzani A, Mancuso R, Gabriele B, Costa M, Della Ca’ N. Neutral vs anionic palladium iodide-catalyzed carbonylation of terminal arylacetylenes. ACTA ACUST UNITED AC 2015. [DOI: 10.1016/j.molcata.2014.11.028] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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52
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Jiang L, Jia T, Wang M, Liao J, Cao P. Pd-Catalyzed Enantioselective Hydroalkoxylation of Alkoxyallenes with Phenol for Construction of Acyclic O,O-Acetals. Org Lett 2015; 17:1070-3. [DOI: 10.1021/acs.orglett.5b00146] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Liyin Jiang
- Chengdu
Institute of Biology, Chinese Academy of Sciences, Chengdu, 610041, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Tao Jia
- Chengdu
Institute of Biology, Chinese Academy of Sciences, Chengdu, 610041, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Min Wang
- Chengdu
Institute of Biology, Chinese Academy of Sciences, Chengdu, 610041, China
| | - Jian Liao
- Chengdu
Institute of Biology, Chinese Academy of Sciences, Chengdu, 610041, China
| | - Peng Cao
- Chengdu
Institute of Biology, Chinese Academy of Sciences, Chengdu, 610041, China
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53
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Zhang H, Bao X. Computational insight into the mechanism of the Pd(0)–Brønsted acid cooperatively catalysed head-to-tail dimerization of terminal alkynes. RSC Adv 2015. [DOI: 10.1039/c5ra14086b] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
The Pd(0)–Brønsted acid cooperatively catalysed head-to-tail dimerization of terminal alkynes was computationally studied to gain a mechanistic insight.
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Affiliation(s)
- Hao Zhang
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou
- China
| | - Xiaoguang Bao
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou
- China
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54
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Larionov E, Lin L, Guénée L, Mazet C. Scope and Mechanism in Palladium-Catalyzed Isomerizations of Highly Substituted Allylic, Homoallylic, and Alkenyl Alcohols. J Am Chem Soc 2014; 136:16882-94. [DOI: 10.1021/ja508736u] [Citation(s) in RCA: 154] [Impact Index Per Article: 15.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Evgeny Larionov
- Department
of Organic Chemistry, University of Geneva, 30 quai Ernest Ansermet, 1211 Geneva, Switzerland
| | - Luqing Lin
- Department
of Organic Chemistry, University of Geneva, 30 quai Ernest Ansermet, 1211 Geneva, Switzerland
| | - Laure Guénée
- Laboratory
of Crystallography, University of Geneva, 24 quai Ernest Ansermet, 1211 Geneva, Switzerland
| | - Clément Mazet
- Department
of Organic Chemistry, University of Geneva, 30 quai Ernest Ansermet, 1211 Geneva, Switzerland
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55
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Carbonylation of ethene catalysed by Pd(II)-phosphine complexes. Molecules 2014; 19:15116-61. [PMID: 25247684 PMCID: PMC6271251 DOI: 10.3390/molecules190915116] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2014] [Revised: 09/02/2014] [Accepted: 09/11/2014] [Indexed: 11/16/2022] Open
Abstract
This review deals with olefin carbonylation catalysed by Pd(II)-phosphine complexes in protic solvents. In particular, the results obtained in the carbonylation with ethene are reviewed. After a short description of the basic concepts relevant to this catalysis, the review treats in greater details the influence of the bite angle, skeletal rigidity, electronic and steric bulk properties of the ligand on the formation of the products, which range from high molecular weight perfectly alternating polyketones to methyl propanoate. It is shown that the steric bulk plays a major role in directing the selectivity. Particular emphasis is given to the factors governing the very active and selective catalysis to methyl propanoate, including the mechanism of the catalytic cycles with diphosphine- and monophosphine-catalysts. A brief note on the synthesis of methyl propanoate using a “Lucite” type catalyst in ionic liquids is also illustrated. A chapter is dedicated to the carbonylation of olefins in aqueous reaction media. The nonalternating CO-ethene copolymerization is also treated.
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56
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Duan Y, Li L, Chen MW, Yu CB, Fan HJ, Zhou YG. Homogenous Pd-Catalyzed Asymmetric Hydrogenation of Unprotected Indoles: Scope and Mechanistic Studies. J Am Chem Soc 2014; 136:7688-700. [DOI: 10.1021/ja502020b] [Citation(s) in RCA: 147] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Ying Duan
- State
Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of
Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Lu Li
- State Key
Laboratory of Fine Chemicals, Institute of Coal Chemical Engineering,
School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China
| | - Mu-Wang Chen
- State
Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of
Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Chang-Bin Yu
- State
Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of
Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Hong-Jun Fan
- State
Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of
Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Yong-Gui Zhou
- State
Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of
Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
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57
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The Sequential Homobimetallic Catalysis Concept Applied to the Synthesis of Benzofuran Derivatives (Highlight). Chem Heterocycl Compd (N Y) 2014. [DOI: 10.1007/s10593-014-1458-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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58
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Montchamp JL. Phosphinate chemistry in the 21st century: a viable alternative to the use of phosphorus trichloride in organophosphorus synthesis. Acc Chem Res 2014; 47:77-87. [PMID: 23909275 DOI: 10.1021/ar400071v] [Citation(s) in RCA: 285] [Impact Index Per Article: 28.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Organophosphorus compounds are important in everyday applications ranging from agriculture to medicine and are used in flame retardants and other materials. Although organophosphorus chemistry is known as a mature and specialized area, researchers would like to develop new methods for synthesizing organophosphorus compounds to improve the safety and sustainability of these chemical processes. The vast majority of compounds that contain a phosphorus-carbon bond are manufactured using phosphorus trichloride (PCl3) as an intermediate. However, these reactions require chlorine, and researchers would like to avoid the use of PCl3 and develop safer chemistry that also decreases energy consumption and minimizes waste. Researchers have already proposed and discussed two primary strategies based on elemental phosphorus (P4 or Pred) or on phosphine (PH3) as alternatives to PCl3. However, phosphinates, an important class of phosphorus compounds defined as any compound with a phosphorus atom attached to two oxygens, R(1)R(2)P(O)(OR) (R(1)/R(2) = hydrogen/carbon), offer another option. This Account discusses the previously neglected potential of these phosphinates as replacements of PCl3 for the preparation of organophosphorus compounds. Because of their strong reductive properties, industry currently uses the simplest members of this class of compounds, hypophosphites, for one major application: electroless plating. In comparison with other proposed PCl3 surrogates, hypophosphorous derivatives can offer improved stability, lower toxicity, higher solubility, and increased atom economy. When their reducing power is harnessed to form phosphorus-carbon or phosphorus-oxygen bonds, these compounds are also rich and versatile precursors to organophosphorus compounds. This Account examines the use of transition metal-catalyzed reactions such as cross-coupling and hydrophosphinylation for phosphorus-carbon bond formation. Because the most important industrial organophosphorus compounds include compounds triply or quadruply bound to oxygen, I also discuss controlled transfer hydrogenation for phosphorus-oxygen bond formation. I hope that this Account will further promote research in this novel and exciting yet much underdeveloped area of phosphinate activation.
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Affiliation(s)
- Jean-Luc Montchamp
- Department of Chemistry, TCU Box 298860, Texas Christian University, Fort Worth, Texas 76129, United States
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59
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Mechanistic studies on the selective oxidative carbonylation of MeOH to dimethyl oxalate catalyzed by [Pd(COOMe)n(TsO)2−n(PPh3)2] (n = 0, 1, 2) using p-benzoquinone as a stoichiometric oxidant. J Organomet Chem 2014. [DOI: 10.1016/j.jorganchem.2013.11.009] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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60
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Fang X, Jackstell R, Beller M. Selective Palladium-Catalyzed Aminocarbonylation of Olefins with Aromatic Amines and Nitroarenes. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201308455] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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61
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Fang X, Jackstell R, Beller M. Selective palladium-catalyzed aminocarbonylation of olefins with aromatic amines and nitroarenes. Angew Chem Int Ed Engl 2013; 52:14089-93. [PMID: 24214903 DOI: 10.1002/anie.201308455] [Citation(s) in RCA: 147] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2013] [Indexed: 11/07/2022]
Affiliation(s)
- Xianjie Fang
- Leibniz-Institut für Katalyse e. V. an der Universität Rostock, Albert-Einstein-Strasse 29a, 18059 Rostock (Germany) http://www.catalysis.de
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62
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Chen T, Zhou Y, Yin SF, Zhao Y, Goto M, Han LB. Identification of Alkenyl- and Arylpalladium Hydrides with the Aid of Hydrosilanes. CHEM LETT 2013. [DOI: 10.1246/cl.130588] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Affiliation(s)
- Tieqiao Chen
- College of Chemistry and Chemical Engineering, Hunan University
| | - Yongbo Zhou
- College of Chemistry and Chemical Engineering, Hunan University
| | - Shuang-Feng Yin
- College of Chemistry and Chemical Engineering, Hunan University
| | - Yalei Zhao
- National Institute of Advanced Industrial Science and Technology (AIST)
| | - Midori Goto
- National Institute of Advanced Industrial Science and Technology (AIST)
| | - Li-Biao Han
- National Institute of Advanced Industrial Science and Technology (AIST)
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63
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Seu CS, Ung D, Doud MD, Moore CE, Rheingold AL, Kubiak CP. Synthesis, Structural, and Electrocatalytic Reduction Studies of [Pd(P2N2)2]2+ Complexes. Organometallics 2013. [DOI: 10.1021/om400472s] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Candace S. Seu
- Department of Chemistry
and Biochemistry, University of California San Diego, 9500 Gilman Drive
MC 0358, La Jolla, California 92093, United States
| | - David Ung
- Department of Chemistry
and Biochemistry, University of California San Diego, 9500 Gilman Drive
MC 0358, La Jolla, California 92093, United States
| | - Michael D. Doud
- Department of Chemistry
and Biochemistry, University of California San Diego, 9500 Gilman Drive
MC 0358, La Jolla, California 92093, United States
| | - Curtis E. Moore
- Department of Chemistry
and Biochemistry, University of California San Diego, 9500 Gilman Drive
MC 0358, La Jolla, California 92093, United States
| | - Arnold L. Rheingold
- Department of Chemistry
and Biochemistry, University of California San Diego, 9500 Gilman Drive
MC 0358, La Jolla, California 92093, United States
| | - Clifford P. Kubiak
- Department of Chemistry
and Biochemistry, University of California San Diego, 9500 Gilman Drive
MC 0358, La Jolla, California 92093, United States
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64
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Mednikov EG, Dahl LF. Ion exchange of protons by coinage metals to give gold and silver encapsulation within a pseudo-D2d distorted face-capped Pd14 cubic kernel: [(μ14-M)Pd22(CO)20(PEt3)8]+ (M = Au, Ag). Angew Chem Int Ed Engl 2013; 52:7813-7. [PMID: 23775944 DOI: 10.1002/anie.201301982] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2013] [Indexed: 11/10/2022]
Abstract
Heart of gold (or silver): The pseudo-D2d distorted MPd14 cubic kernel of [(μ14-M)Pd22(CO)20(PEt3)8](+) cations, with M = Au (1), Ag (2), has an encapsulated M atom (see picture; yellow) coordinated to eight cubic corner (black) and six face-capping Pd atoms (gray). Compounds 1 and 2 were obtained (28-60 % yields) from two-step/one-pot reactions of a Pd10 precursor with CF3CO2 H followed by coinage-metal ion exchange of protons.
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Affiliation(s)
- Evgueni G Mednikov
- Department of Chemistry University of Wisconsin-Madison, 1101 University Ave. Madison, WI 53706, USA.
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65
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Ortial S, Fisher HC, Montchamp JL. Hydrophosphinylation of Unactivated Terminal Alkenes Catalyzed by Nickel Chloride. J Org Chem 2013; 78:6599-608. [DOI: 10.1021/jo4008749] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Stéphanie Ortial
- Department of Chemistry,
Box 298860, Texas Christian University,
Fort Worth, Texas 76129, United States
| | - Henry C. Fisher
- Department of Chemistry,
Box 298860, Texas Christian University,
Fort Worth, Texas 76129, United States
| | - Jean-Luc Montchamp
- Department of Chemistry,
Box 298860, Texas Christian University,
Fort Worth, Texas 76129, United States
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66
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Mednikov EG, Dahl LF. Ion Exchange of Protons by Coinage Metals to Give Gold and Silver Encapsulation within a Pseudo-D2dDistorted Face-Capped Pd14Cubic Kernel: [(μ14-M)Pd22(CO)20(PEt3)8]+(M=Au, Ag). Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201301982] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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67
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Delcamp JH, Gormisky PE, White MC. Oxidative Heck vinylation for the synthesis of complex dienes and polyenes. J Am Chem Soc 2013; 135:8460-3. [PMID: 23701421 DOI: 10.1021/ja402891m] [Citation(s) in RCA: 64] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
We introduce an oxidative Heck reaction for selective complex diene and polyene formation. The reaction proceeds via oxidative Pd(II)/sulfoxide catalysis that retards palladium-hydride isomerizations which previously limited the Heck manifold's capacity for furnishing stereodefined conjugated dienes. Limiting quantities of nonactivated terminal olefins (1 equiv) and slight excesses of vinyl boronic esters (1.5 equiv) that feature diverse functionality can be used to furnish complex dienes and polyenes in good yields and excellent selectivities (generally E:Z = >20:1; internal:terminal = >20:1). Because this reaction only requires prior activation of a single vinylic carbon, improvements in efficiency are observed for synthetic sequences relative to ones featuring reactions that require activation of both coupling partners.
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Affiliation(s)
- Jared H Delcamp
- University of Mississippi, University, Mississippi 38677, USA
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68
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Berger O, Petit C, Deal EL, Montchamp JL. Phosphorus-Carbon Bond Formation: Palladium-Catalyzed Cross-Coupling ofH-Phosphinates and Other P(O)H-Containing Compounds. Adv Synth Catal 2013. [DOI: 10.1002/adsc.201300069] [Citation(s) in RCA: 115] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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69
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Fang X, Zhang M, Jackstell R, Beller M. Selective Palladium-Catalyzed Hydroformylation of Alkynes to α,β-Unsaturated Aldehydes. Angew Chem Int Ed Engl 2013; 52:4645-9. [DOI: 10.1002/anie.201300759] [Citation(s) in RCA: 72] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2013] [Indexed: 12/15/2022]
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70
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Fang X, Zhang M, Jackstell R, Beller M. Selective Palladium-Catalyzed Hydroformylation of Alkynes to α,β-Unsaturated Aldehydes. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201300759] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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71
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Almeida Leñero KQ, Guari Y, Kamer PCJ, van Leeuwen PWNM, Donnadieu B, Sabo-Etienne S, Chaudret B, Lutz M, Spek AL. Heterolytic activation of dihydrogen by platinum and palladium complexes. Dalton Trans 2013; 42:6495-512. [DOI: 10.1039/c3dt32395a] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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72
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MUNAKATA H, RAHARINTSALAMA R, MIYAMOTO A. Theoretical Studies on Ethene Formation from Ethyl-Palladium(II) Complexes by Using DFT Method Including Solvent Effects. JOURNAL OF COMPUTER CHEMISTRY-JAPAN 2013. [DOI: 10.2477/jccj.2012-0019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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73
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Vavasori A, Ronchin L, Toniolo L. Carbon monoxide–ethene alternating copolymerization catalyzed by [PdCl2(dppf)] in H2O–HCOOH [dppf=1,1′-bis(diphenylphosphino)ferrocene]. ACTA ACUST UNITED AC 2012. [DOI: 10.1016/j.molcata.2012.07.016] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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74
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Jahier C, Zatolochnaya OV, Zvyagintsev NV, Ananikov VP, Gevorgyan V. General and Selective Head-to-Head Dimerization of Terminal Alkynes Proceeding via Hydropalladation Pathway. Org Lett 2012; 14:2846-9. [DOI: 10.1021/ol3010936] [Citation(s) in RCA: 65] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Claire Jahier
- Department of Chemistry, University of Illinois at Chicago, 845 West Taylor Street, Chicago, Illinois, 60607-7061, United States, and Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky Prospekt 47, Moscow, 119991, Russia
| | - Olga V. Zatolochnaya
- Department of Chemistry, University of Illinois at Chicago, 845 West Taylor Street, Chicago, Illinois, 60607-7061, United States, and Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky Prospekt 47, Moscow, 119991, Russia
| | - Nickolay V. Zvyagintsev
- Department of Chemistry, University of Illinois at Chicago, 845 West Taylor Street, Chicago, Illinois, 60607-7061, United States, and Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky Prospekt 47, Moscow, 119991, Russia
| | - Valentine P. Ananikov
- Department of Chemistry, University of Illinois at Chicago, 845 West Taylor Street, Chicago, Illinois, 60607-7061, United States, and Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky Prospekt 47, Moscow, 119991, Russia
| | - Vladimir Gevorgyan
- Department of Chemistry, University of Illinois at Chicago, 845 West Taylor Street, Chicago, Illinois, 60607-7061, United States, and Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky Prospekt 47, Moscow, 119991, Russia
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75
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Affiliation(s)
- Philipp Klahn
- Organic Chemistry, Bergische Universität Wuppertal, Gaussstr. 20, 42119 Wuppertal, Germany, and Department Chemie, Technische Universität München, Lichtenbergstr. 4, 85747 Garching, Germany
| | - Alexander Duschek
- Organic Chemistry, Bergische Universität Wuppertal, Gaussstr. 20, 42119 Wuppertal, Germany, and Department Chemie, Technische Universität München, Lichtenbergstr. 4, 85747 Garching, Germany
| | - Clémence Liébert
- Organic Chemistry, Bergische Universität Wuppertal, Gaussstr. 20, 42119 Wuppertal, Germany, and Department Chemie, Technische Universität München, Lichtenbergstr. 4, 85747 Garching, Germany
| | - Stefan F. Kirsch
- Organic Chemistry, Bergische Universität Wuppertal, Gaussstr. 20, 42119 Wuppertal, Germany, and Department Chemie, Technische Universität München, Lichtenbergstr. 4, 85747 Garching, Germany
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76
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Gerber R, Oberholzer M, Frech CM. Cyanation of Aryl Bromides with K4[Fe(CN)6] Catalyzed by Dichloro[bis{1-(dicyclohexylphosphanyl)piperidine}]palladium, a Molecular Source of Nanoparticles, and the Reactions Involved in the Catalyst-Deactivation Processes. Chemistry 2012; 18:2978-86. [PMID: 22298440 DOI: 10.1002/chem.201102936] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2011] [Indexed: 11/12/2022]
Affiliation(s)
- Roman Gerber
- Department of Inorganic Chemistry, University of Zürich, 8057 Zürich, Switzerland
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77
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Kanazawa M, Ito S, Nozaki K. Ethylene Polymerization by Palladium/Phosphine–Sulfonate Catalysts in the Presence and Absence of Protic Solvents: Structural and Mechanistic Differences. Organometallics 2011. [DOI: 10.1021/om2004207] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Affiliation(s)
- Masafumi Kanazawa
- Department of Chemistry and Biotechnology, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Shingo Ito
- Department of Chemistry and Biotechnology, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Kyoko Nozaki
- Department of Chemistry and Biotechnology, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
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78
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Shen R, Chen T, Zhao Y, Qiu R, Zhou Y, Yin S, Wang X, Goto M, Han LB. Facile Regio- and Stereoselective Hydrometalation of Alkynes with a Combination of Carboxylic Acids and Group 10 Transition Metal Complexes: Selective Hydrogenation of Alkynes with Formic Acid. J Am Chem Soc 2011; 133:17037-44. [DOI: 10.1021/ja2069246] [Citation(s) in RCA: 189] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Ruwei Shen
- National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Ibaraki 305-8565, Japan
| | - Tieqiao Chen
- College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China
- National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Ibaraki 305-8565, Japan
| | - Yalei Zhao
- College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China
| | - Renhua Qiu
- College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China
| | - Yongbo Zhou
- College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China
| | - Shuangfeng Yin
- College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China
| | - Xiangbo Wang
- National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Ibaraki 305-8565, Japan
| | - Midori Goto
- National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Ibaraki 305-8565, Japan
| | - Li-Biao Han
- College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China
- National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Ibaraki 305-8565, Japan
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79
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Decharin N, Popp BV, Stahl SS. Reaction of O2 with [(-)-sparteine]Pd(H)Cl: evidence for an intramolecular [H-L]+ "reductive elimination" pathway. J Am Chem Soc 2011; 133:13268-71. [PMID: 21790197 PMCID: PMC3161160 DOI: 10.1021/ja204989p] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
(Sp)PdCl(2) [Sp = (-)-sparteine] catalyzes a number of different aerobic oxidation reactions, and reaction of O(2) with a Pd(II)-hydride intermediate, (Sp)Pd(H)Cl (1), is a key step in the proposed catalytic mechanism. Previous computational studies suggest that O(2) inserts into the Pd(II)-H bond, initiated by abstraction of the hydrogen atom by O(2). Experimental and computational results obtained in the present study challenge this conclusion. Oxygenation of in-situ-generated (Sp)Pd(H)Cl exhibits a zero-order dependence on [O(2)]. This result is inconsistent with a bimolecular H-atom-abstraction pathway, and DFT computational studies identify a novel "reductive elimination" mechanism, in which the chelating nitrogen ligand undergoes intramolecular deprotonation of the Pd(II)-hydride. The relevance of this mechanism to other Pd(II) oxidation catalysts with chelating nitrogen ligands is evaluated.
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Affiliation(s)
- Nattawan Decharin
- Department of Chemistry, University of Wisconsin - Madison, 1101 University Avenue, Madison, Wisconsin 53706
| | - Brian V. Popp
- Department of Chemistry, University of Wisconsin - Madison, 1101 University Avenue, Madison, Wisconsin 53706
| | - Shannon S. Stahl
- Department of Chemistry, University of Wisconsin - Madison, 1101 University Avenue, Madison, Wisconsin 53706
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80
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Theofanis PL, Goddard WA. Understanding β-Hydride Eliminations from Heteroatom Functional Groups. Organometallics 2011. [DOI: 10.1021/om200542w] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Patrick L. Theofanis
- Materials and Process Simulation Center, Beckman Institute (139-74), California Institute of Technology, Pasadena, California 91125, United States
| | - William A. Goddard
- Materials and Process Simulation Center, Beckman Institute (139-74), California Institute of Technology, Pasadena, California 91125, United States
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81
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Nelson B, Hiller W, Pollex A, Hiersemann M. Palladium(II)-Catalyzed Cycloisomerization of Functionalized 1,5-Hexadienes. Org Lett 2011; 13:4438-41. [DOI: 10.1021/ol201795w] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Björn Nelson
- Fakultät Chemie, Technische Universität Dortmund, 44227 Dortmund, Germany
| | - Wolf Hiller
- Fakultät Chemie, Technische Universität Dortmund, 44227 Dortmund, Germany
| | - Annett Pollex
- Fakultät Chemie, Technische Universität Dortmund, 44227 Dortmund, Germany
| | - Martin Hiersemann
- Fakultät Chemie, Technische Universität Dortmund, 44227 Dortmund, Germany
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82
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Ostrowski T, Januszczyk P, Cieslak M, Kazmierczak-Baranska J, Nawrot B, Bartoszak-Adamska E, Zeidler J. 5-Ethynyl-1-β-D-ribofuranosyl-1H-[1,2,3]triazole-4-carboxylic acid amide (ETCAR) and its analogues: synthesis and cytotoxic properties. Bioorg Med Chem 2011; 19:4386-98. [PMID: 21684167 DOI: 10.1016/j.bmc.2011.05.050] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2011] [Revised: 05/05/2011] [Accepted: 05/09/2011] [Indexed: 11/16/2022]
Abstract
Efficient Pd(0)-catalysed synthesis of 5-alkynyl-1-β-D-ribofuranosyl-1H-[1,2,3]triazole-4-carboxylic acid amide depends on the presence of different protecting groups of the ribose moiety. Peracetylated 5-iodo substrate (15) couples with terminal alkynes or trimethyl-[(tributylstannyl)ethynyl]silane in 50-71% and 72% yield (ETCAR), respectively, although its hydrodehalogenation to 19 is noticeable. On the other hand, hydrodehalogenation of acetonide (16) predominates over coupling with terminal alkyne and slightly decreases a yield of cross-coupling reaction with trimethyl[(tributylstannyl)ethynyl]silane. Alternative conditions of reaction with terminal alkynes, to exclude so far identified hydride sources to produce hydridopalladium species, have been established for acetonide 16 and allowed to achieve 72% of coupling. Fluoromethyl derivative (42) was prepared from its 5-hydroxymethyl precursor by fluorination with DAST. Additionally, X-ray structural analysis of 42 was performed. All 1,2,3-triazolonucleosides and two synthesized cycloSal-pronucleotides were evaluated for cytotoxic activity against K562, HeLa and HUVEC cells.
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Affiliation(s)
- Tomasz Ostrowski
- Institute of Bioorganic Chemistry, Polish Academy of Sciences, Noskowskiego 12/14, 61-704 Poznan, Poland
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83
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Seel S, Thaler T, Takatsu K, Zhang C, Zipse H, Straub BF, Mayer P, Knochel P. Highly Diastereoselective Arylations of Substituted Piperidines. J Am Chem Soc 2011; 133:4774-7. [DOI: 10.1021/ja201008e] [Citation(s) in RCA: 119] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Stephanie Seel
- Department Chemie, Ludwig-Maximilians-Universität München, Butenandtstr. 5-13, Haus F, 81377 Munich, Germany
| | - Tobias Thaler
- Department Chemie, Ludwig-Maximilians-Universität München, Butenandtstr. 5-13, Haus F, 81377 Munich, Germany
| | - Keishi Takatsu
- Department of Chemistry, Graduate School of Science, Kyoto University, Sakyo, Kyoto 606-8502, Japan
| | - Cong Zhang
- Department Chemie, Ludwig-Maximilians-Universität München, Butenandtstr. 5-13, Haus F, 81377 Munich, Germany
| | - Hendrik Zipse
- Department Chemie, Ludwig-Maximilians-Universität München, Butenandtstr. 5-13, Haus F, 81377 Munich, Germany
| | - Bernd F. Straub
- Organisch-Chemisches Institut, Universität Heidelberg, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany
| | - Peter Mayer
- Department Chemie, Ludwig-Maximilians-Universität München, Butenandtstr. 5-13, Haus F, 81377 Munich, Germany
| | - Paul Knochel
- Department Chemie, Ludwig-Maximilians-Universität München, Butenandtstr. 5-13, Haus F, 81377 Munich, Germany
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84
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Hydrocarboxylation of unactivated internal alkynes with carboxylic acids catalyzed by dinuclear palladium complexes. Tetrahedron Lett 2011. [DOI: 10.1016/j.tetlet.2010.11.046] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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85
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Armbruster F, Meyer J, Baldes A, Burgos PO, Fernández I, Breher F. A triangulopalladium cluster consisting of μ3-capping silyl ligands. Chem Commun (Camb) 2011; 47:221-3. [DOI: 10.1039/c002435j] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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86
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Tsuji Y, Fujihara T. Transition-Metal-Catalyzed Addition Reactions of Carbonyl Functionalities to Alkynes. J SYN ORG CHEM JPN 2011. [DOI: 10.5059/yukigoseikyokaishi.69.1375] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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87
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Li H, Grasa GA, Colacot TJ. A Highly Efficient, Practical, and General Route for the Synthesis of (R3P)2Pd(0): Structural Evidence on the Reduction Mechanism of Pd(II) to Pd(0). Org Lett 2010; 12:3332-5. [PMID: 20597473 DOI: 10.1021/ol101106z] [Citation(s) in RCA: 61] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Hongbo Li
- Johnson Matthey Catalysis and Chiral Technologies, 2001 Nolte Drive, West Deptford, New Jersey 08066
| | - Gabriela A. Grasa
- Johnson Matthey Catalysis and Chiral Technologies, 2001 Nolte Drive, West Deptford, New Jersey 08066
| | - Thomas J. Colacot
- Johnson Matthey Catalysis and Chiral Technologies, 2001 Nolte Drive, West Deptford, New Jersey 08066
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88
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Gauthier D, Lindhardt AT, Olsen EPK, Overgaard J, Skrydstrup T. In Situ Generated Bulky Palladium Hydride Complexes as Catalysts for the Efficient Isomerization of Olefins. Selective Transformation of Terminal Alkenes to 2-Alkenes. J Am Chem Soc 2010; 132:7998-8009. [DOI: 10.1021/ja9108424] [Citation(s) in RCA: 178] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Delphine Gauthier
- The Center for Insoluble Protein Structures (inSPIN), Department of Chemistry and the Interdisciplinary Nanoscience Center, Aarhus University, Langelandsgade 140, 8000 Aarhus, Denmark
| | - Anders T. Lindhardt
- The Center for Insoluble Protein Structures (inSPIN), Department of Chemistry and the Interdisciplinary Nanoscience Center, Aarhus University, Langelandsgade 140, 8000 Aarhus, Denmark
| | - Esben P. K. Olsen
- The Center for Insoluble Protein Structures (inSPIN), Department of Chemistry and the Interdisciplinary Nanoscience Center, Aarhus University, Langelandsgade 140, 8000 Aarhus, Denmark
| | - Jacob Overgaard
- The Center for Insoluble Protein Structures (inSPIN), Department of Chemistry and the Interdisciplinary Nanoscience Center, Aarhus University, Langelandsgade 140, 8000 Aarhus, Denmark
| | - Troels Skrydstrup
- The Center for Insoluble Protein Structures (inSPIN), Department of Chemistry and the Interdisciplinary Nanoscience Center, Aarhus University, Langelandsgade 140, 8000 Aarhus, Denmark
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89
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Sehnal P, Taylor RJK, Fairlamb IJS. Emergence of palladium(IV) chemistry in synthesis and catalysis. Chem Rev 2010; 110:824-89. [PMID: 20143876 DOI: 10.1021/cr9003242] [Citation(s) in RCA: 543] [Impact Index Per Article: 38.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Petr Sehnal
- Department of Chemistry, University of York, Heslington, York YO10 5DD, United Kingdom
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90
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Fujihara T, Katafuchi Y, Iwai T, Terao J, Tsuji Y. Palladium-Catalyzed Intermolecular Addition of Formamides to Alkynes. J Am Chem Soc 2010; 132:2094-8. [DOI: 10.1021/ja910038p] [Citation(s) in RCA: 99] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Tetsuaki Fujihara
- Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Yuko Katafuchi
- Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Tomohiro Iwai
- Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Jun Terao
- Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Yasushi Tsuji
- Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto 615-8510, Japan
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91
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Kose O, Saito S. Cross-coupling reaction of alcohols for carbon-carbon bond formation using pincer-type NHC/palladium catalysts. Org Biomol Chem 2009; 8:896-900. [PMID: 20135049 DOI: 10.1039/b914618k] [Citation(s) in RCA: 97] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A cross-coupling reaction of different alcohols was achieved using a pincer-type NHC/PdBr complex as the catalyst precursor, and the reaction, under either Ar or H(2) gas, displayed a broad substrate scope with respect to both primary and secondary alcohol components, with high alcohol product selectivity.
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Affiliation(s)
- Osamu Kose
- Department of Chemistry, Graduate School of Science, Nagoya University, Chikusa, Nagoya 464-8602, Japan
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92
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Alvaro E, Hartwig JF. Resting state and elementary steps of the coupling of aryl halides with thiols catalyzed by alkylbisphosphine complexes of palladium. J Am Chem Soc 2009; 131:7858-68. [PMID: 19453106 DOI: 10.1021/ja901793w] [Citation(s) in RCA: 195] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Detailed mechanistic studies on the coupling of aryl halides with thiols catalyzed by palladium complexes of the alkylbisphosphine ligand CyPF-(t)Bu (1-dicyclohexylphosphino-2-di-tert-butylphosphinoethylferrocene) are reported. The elementary steps that constitute the catalytic cycle, i.e. oxidative addition, transmetalation and reductive elimination, have been studied, and their relative rates are reported. Each of the steps of the catalytic process occurs at temperatures that are much lower than those required for the reactions catalyzed by a combination of palladium precursors and CyPF-(t)Bu. To explain these differences in rates between the catalytic and stoichiometric reactions, studies were conducted to identify the resting state of the catalyst of the reactions catalyzed by a combination of Pd(OAc)(2) and CyPF-(t)Bu, a combination of Pd(dba)(2) and CyPF-(t)Bu, or the likely intermediate Pd(CyPF-(t)Bu)(Ar)(Br). These data show that the major palladium complex in each case lies off of the catalytic cycle. The resting state of the reactions catalyzed by Pd(OAc)(2) and CyPF-(t)Bu was the palladium bis-thiolate complex [Pd(CyPF-(t)Bu)(SR)(2)] (R = alkyl or aryl). The resting state in reactions catalyzed by Pd(2)(dba)(3) and CyPF-(t)Bu was the binuclear complex [Pd(CyPF-(t)Bu)](2)(mu(2),eta(2)-dba) (9). The resting states of reactions of both aromatic and aliphatic thiols catalyzed by [Pd(CyPF-(t)Bu)(p-tolyl)(Br)] (3a) were the hydridopalladium thiolate complexes [Pd(CyPF-(t)Bu)(H)(SR)] (R= alkyl and aryl). All these palladium species have been prepared independently, and the mechanisms by which they enter the catalytic cycle have been examined in detail. These features of the reaction catalyzed by palladium and CyPF-(t)Bu have been compared with those of reactions catalyzed by the alkylbisphosphine DiPPF and Pd(OAc)(2) or Pd(dba)(2). Our data indicate that the resting states of these reactions are similar to each other and that our mechanistic conclusions about reactions catalyzed by palladium and CyPF-(t)Bu can be extrapolated to reactions catalyzed by complexes of other electron-rich bisphosphines.
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Affiliation(s)
- Elsa Alvaro
- Department of Chemistry, University of Illinois, 600 South Mathews Avenue, Urbana, Illinois 61801, USA
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93
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Fantasia S, Egbert J, Jurčík V, Cazin C, Jacobsen H, Cavallo L, Heinekey D, Nolan S. Activation of Hydrogen by Palladium(0): Formation of the Mononuclear Dihydride Complextrans-[Pd(H)2(IPr)(PCy3)]. Angew Chem Int Ed Engl 2009; 48:5182-6. [DOI: 10.1002/anie.200900463] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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94
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Fantasia S, Egbert J, Jurčík V, Cazin C, Jacobsen H, Cavallo L, Heinekey D, Nolan S. Activation of Hydrogen by Palladium(0): Formation of the Mononuclear Dihydride Complextrans-[Pd(H)2(IPr)(PCy3)]. Angew Chem Int Ed Engl 2009. [DOI: 10.1002/ange.200900463] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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95
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Gligorich KM, Iwai Y, Cummings SA, Sigman MS. A new approach to carbon-carbon bond formation: Development of aerobic Pd-catalyzed reductive coupling reactions of organometallic reagents and styrenes. Tetrahedron 2009; 65:5074-5083. [PMID: 20161306 DOI: 10.1016/j.tet.2009.03.096] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Abstract
Alkenes are attractive starting materials for organic synthesis and the development of new selective functionalization reactions are desired. Previously, our laboratory discovered a unique Pd-catalyzed hydroalkoxylation reaction of styrenes containing a phenol. Based upon deuterium labeling experiments, a mechanism involving an aerobic alcohol oxidation coupled to alkene functionalization was proposed. These results inspired the development of a new Pd-catalyzed reductive coupling reaction of alkenes and organometallic reagents that generates a new carbon-carbon bond. Optimization of the conditions for the coupling of both organostannanes and organoboronic esters is described and the initial scope of the transformation is presented. Additionally, several mechanistic experiments are outlined and support the rationale for the development of the reaction based upon coupling alcohol oxidation to alkene functionalization.
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Affiliation(s)
- Keith M Gligorich
- Department of Chemistry, University of Utah, 315 South 1400 East Salt Lake City, UT 84112, USA
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96
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Lindh J, Sävmarker J, Nilsson P, Sjöberg PJR, Larhed M. Synthesis of styrenes by palladium(II)-catalyzed vinylation of arylboronic acids and aryltrifluoroborates by using vinyl acetate. Chemistry 2009; 15:4630-6. [PMID: 19274694 DOI: 10.1002/chem.200802744] [Citation(s) in RCA: 56] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
One Heck of a reaction: Treatment of arylboronic acids or aryltrifluoroborates with vinyl acetate by using a palladium(II) catalyst gives the corresponding styrenes (see scheme). No palladium reoxidant is needed and the vinylation is performed under non-inert conditionsReactions of aromatic and heteroaromatic boronic acids or aryltrifluoroborate salts with vinyl acetate in the presence of a palladium(II) catalyst give the corresponding styrenes in good yields. This Heck reaction proceeds with microwave heating in less than 30 min at 140 degrees C in the absence of base and tolerates a variety of substituents. No palladium reoxidant is needed and the vinylation is performed under non-inert conditions. Mass spectrometry (electrospray ionization mass spectrometry (ESIMS) and tandem mass spectrometry (MS/MS)) was used to identify cationic palladium-containing complexes in ongoing reactions. The key intermediates that have been detected, together with experiments that used deuterated vinyl acetate, support the existence of catalytically active palladium hydride species, and that it is the arylation of ethylene, not vinyl acetate, which generates the styrene product. The mechanism of the reaction is discussed in terms of the palladium(II) intermediates mentioned above.
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Affiliation(s)
- Jonas Lindh
- Department of Medicinal Chemistry, Organic Pharmaceutical Chemistry, Uppsala University, BMC, Box-574, SE-751 23 Uppsala, Sweden
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97
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Popp B, Stahl S. Mechanism of Pd(OAc)2/Pyridine Catalyst Reoxidation by O2: Influence of Labile Monodentate Ligands and Identification of a Biomimetic Mechanism for O2Activation. Chemistry 2009; 15:2915-22. [DOI: 10.1002/chem.200802311] [Citation(s) in RCA: 91] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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98
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Chen IC, Ho SM, Chen YC, Lin CY, Hu CH, Tu CY, Datta A, Huang JH, Lin CH. Deprotonation and reductive addition reactions of hypervalent aluminium dihydride compounds containing substituted pyrrolyl ligands with phenols, ketones, and aldehydes. Dalton Trans 2009:8631-43. [PMID: 19809740 DOI: 10.1039/b908164j] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Affiliation(s)
- I-Chun Chen
- Department of Chemistry, National Changhua University of Education, Changhua, 50058, Taiwan
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99
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Sergeev AG, Spannenberg A, Beller M. Palladium-Catalyzed Formylation of Aryl Bromides: Elucidation of the Catalytic Cycle of an Industrially Applied Coupling Reaction. J Am Chem Soc 2008; 130:15549-63. [DOI: 10.1021/ja804997z] [Citation(s) in RCA: 140] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Alexey G. Sergeev
- Leibniz-Institut für Katalyse e.V. an der Universität Rostock, Albert-Einstein-Strasse 29a, 18059 Rostock, Germany
| | - Anke Spannenberg
- Leibniz-Institut für Katalyse e.V. an der Universität Rostock, Albert-Einstein-Strasse 29a, 18059 Rostock, Germany
| | - Matthias Beller
- Leibniz-Institut für Katalyse e.V. an der Universität Rostock, Albert-Einstein-Strasse 29a, 18059 Rostock, Germany
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100
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