1
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Sansores-Paredes MG, Nguyen TTT, Lutz M, Moret ME. Reactions of Nickel(0)-Olefin Pincer Complexes with Terminal Alkynes: Cooperative C-H Bond Activation and Alkyne Coupling. Organometallics 2023; 42:3418-3427. [PMID: 38098646 PMCID: PMC10716905 DOI: 10.1021/acs.organomet.3c00404] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2023] [Revised: 11/06/2023] [Accepted: 11/06/2023] [Indexed: 12/17/2023]
Abstract
Metal-ligand cooperation can facilitate the activation of chemical bonds, opening reaction pathways of interest for catalyst development. In this context, olefins occupying the central position of a diphosphine pincer ligand (PC=CP) are emerging as reversible H atom acceptors, e.g., for H2 activation. Here, we report on the reactivity of nickel complexes of PC=CP ligands with a terminal alkyne, for which two competing pathways are observed. First, cooperative and reversible C-H bond activation generates a Ni(II) alkyl/alkynyl complex as the kinetic product. Second, in the absence of a bulky substituent on the olefin, two alkyne molecules are incorporated in the ligand structure to form a conjugated triene bound to Ni(0). The mechanisms of these processes are studied by density functional theory calculations supported by experimental observations.
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Affiliation(s)
- María
L. G. Sansores-Paredes
- Organic
Chemistry and Catalysis, Institute for Sustainable and Circular Chemistry,
Faculty of Science, Utrecht University, Universiteitsweg 99, 3584 CG Utrecht, The Netherlands
| | - Tú T. T. Nguyen
- Organic
Chemistry and Catalysis, Institute for Sustainable and Circular Chemistry,
Faculty of Science, Utrecht University, Universiteitsweg 99, 3584 CG Utrecht, The Netherlands
| | - Martin Lutz
- Structural
Biochemistry, Bijvoet Centre for Biomolecular Research, Faculty of
Science, Utrecht University, Universiteitsweg 99, 3534 CG Utrecht, The Netherlands
| | - Marc-Etienne Moret
- Organic
Chemistry and Catalysis, Institute for Sustainable and Circular Chemistry,
Faculty of Science, Utrecht University, Universiteitsweg 99, 3584 CG Utrecht, The Netherlands
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2
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Kanale VV, Uyeda C. Catalytic Asymmetric Ring-Opening Reactions of Unstrained Heterocycles Using Cobalt Vinylidenes. Angew Chem Int Ed Engl 2023; 62:e202309681. [PMID: 37656431 PMCID: PMC10591978 DOI: 10.1002/anie.202309681] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2023] [Revised: 08/09/2023] [Accepted: 08/30/2023] [Indexed: 09/02/2023]
Abstract
Cobalt catalysts promote highly enantioselective ring-opening reactions of 2,5-dihydrofurans using vinylidenes. The products are acyclic organozinc compounds that can be functionalized with an electrophile. The proposed mechanism involves the generation of a cobalt vinylidene species that adds to the alkene by a [2+2]-cycloaddition pathway. Ring-opening then occurs via outer-sphere β-O elimination assisted by coordination of a ZnX2 Lewis acid to the alkoxide leaving group. DFT models reveal that competing inner-sphere syn β-H and β-O elimination pathways are suppressed by the geometric constraints of the metallacycle intermediate. These models rationalize the observed stereochemical outcome of the reaction.
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Affiliation(s)
- Vibha V Kanale
- Chemistry Department, Purdue University, 560 Oval Dr., West Lafayette, IN 47907, USA
| | - Christopher Uyeda
- Chemistry Department, Purdue University, 560 Oval Dr., West Lafayette, IN 47907, USA
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3
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Sicard AJ, Ghaffari B, Gabidullin BM, Ovens JS, Hughes RP, Baker RT. Nickel-Catalyzed Homologation of Vinylidene Difluoride (CH 2═CF 2): Selective β-F vs β-H Elimination. J Am Chem Soc 2022; 144:22713-22721. [PMID: 36469940 DOI: 10.1021/jacs.2c10448] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Hydrofluoroolefins (HFOs) constitute the newest generation of fluorocarbon refrigerants and foam-blowing agents due to their reduced global warming potential vs their saturated analogues. To identify new synthetic routes to HFOs, we show that reactions of bulky Ni(0) phosphine and -NHC complexes with vinylidene difluoride (VF2) afford μ-fluoro-1,1,3-trifluorobut-3-enyl Ni complexes. Moreover, addition of triisopropylsilane allows for reductive elimination of the reduced product─2,4,4-trifluoro-1-butene─demonstrating the Ni-catalyzed hydrodefluorodimerization of VF2. Accompanying DFT calculations identify the T-shaped nickelacyclopentane intermediate that spontaneously undergoes selective intramolecular β-F (vs β-H) elimination.
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Affiliation(s)
- Alexandre J Sicard
- Department of Chemistry and Biomolecular Sciences and Centre for Catalysis Research and Innovation, University of Ottawa, 30 Marie Curie, Ottawa, Ontario K1N 6N5, Canada
| | - Behnaz Ghaffari
- Department of Chemistry and Biomolecular Sciences and Centre for Catalysis Research and Innovation, University of Ottawa, 30 Marie Curie, Ottawa, Ontario K1N 6N5, Canada
| | - Bulat M Gabidullin
- Faculty of Science, University of Ottawa, Ottawa, Ontario K1N 6N5, Canada
| | - Jeffrey S Ovens
- Faculty of Science, University of Ottawa, Ottawa, Ontario K1N 6N5, Canada
| | - Russell P Hughes
- Department of Chemistry, Dartmouth College, Hanover, New Hampshire 03755, United States
| | - R Tom Baker
- Department of Chemistry and Biomolecular Sciences and Centre for Catalysis Research and Innovation, University of Ottawa, 30 Marie Curie, Ottawa, Ontario K1N 6N5, Canada
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4
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Tran HN, Nguyen CM, Koeritz MT, Youmans DD, Stanley LM. Nickel-catalyzed arylative substitution of homoallylic alcohols. Chem Sci 2022; 13:11607-11613. [PMID: 36320388 PMCID: PMC9555571 DOI: 10.1039/d2sc01716d] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2022] [Accepted: 07/11/2022] [Indexed: 11/28/2022] Open
Abstract
Direct coupling of unactivated alcohols remains a challenge in synthetic chemistry. Current approaches to cross-coupling of alcohol-derived electrophiles often involve activated alcohols such as tosylates or carbonates. We report the direct arylative substitution of homoallylic alcohols catalyzed by a nickel-bisphosphine complex as a facile method to generate allylic arenes. These reactions proceed via formation of an allylic alcohol intermediate. Subsequent allylic substitution with arylboroxine nucleophiles enables the formation of a variety of allylic arenes. The presence of p-methoxyphenylboronic acid is crucial to activate the allylic alcohol to achieve high product yields.
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Affiliation(s)
- Hai N Tran
- Department of Chemistry, Iowa State University Ames IA 50011 USA
| | - Chau M Nguyen
- Department of Chemistry, Iowa State University Ames IA 50011 USA
| | - Mason T Koeritz
- Department of Chemistry, Iowa State University Ames IA 50011 USA
| | - Dustin D Youmans
- Department of Chemistry, Iowa State University Ames IA 50011 USA
| | - Levi M Stanley
- Department of Chemistry, Iowa State University Ames IA 50011 USA
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5
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Fukuzawa H, Aoyagi N, Sato R, Kataoka Y, Ura Y. Ruthenacyclopentanes as Intermediates in the Regio- and Stereoselective Linear Codimerization of N-Vinylamides with Electron-Deficient Alkenes. Organometallics 2017. [DOI: 10.1021/acs.organomet.7b00545] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Hiroko Fukuzawa
- Department of Chemistry,
Biology, and Environmental Science, Faculty of Science, Nara Women’s University, Kitauoyanishi-machi, Nara 630-8506, Japan
| | - Nozomi Aoyagi
- Department of Chemistry,
Biology, and Environmental Science, Faculty of Science, Nara Women’s University, Kitauoyanishi-machi, Nara 630-8506, Japan
| | - Ruriko Sato
- Department of Chemistry,
Biology, and Environmental Science, Faculty of Science, Nara Women’s University, Kitauoyanishi-machi, Nara 630-8506, Japan
| | - Yasutaka Kataoka
- Department of Chemistry,
Biology, and Environmental Science, Faculty of Science, Nara Women’s University, Kitauoyanishi-machi, Nara 630-8506, Japan
| | - Yasuyuki Ura
- Department of Chemistry,
Biology, and Environmental Science, Faculty of Science, Nara Women’s University, Kitauoyanishi-machi, Nara 630-8506, Japan
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6
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Newton CG, Wang SG, Oliveira CC, Cramer N. Catalytic Enantioselective Transformations Involving C–H Bond Cleavage by Transition-Metal Complexes. Chem Rev 2017; 117:8908-8976. [DOI: 10.1021/acs.chemrev.6b00692] [Citation(s) in RCA: 643] [Impact Index Per Article: 91.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Christopher G. Newton
- Laboratory of Asymmetric
Catalysis and Synthesis, Institute of Chemical Sciences and Engineering, École Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland
| | - Shou-Guo Wang
- Laboratory of Asymmetric
Catalysis and Synthesis, Institute of Chemical Sciences and Engineering, École Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland
| | - Caio C. Oliveira
- Laboratory of Asymmetric
Catalysis and Synthesis, Institute of Chemical Sciences and Engineering, École Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland
| | - Nicolai Cramer
- Laboratory of Asymmetric
Catalysis and Synthesis, Institute of Chemical Sciences and Engineering, École Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland
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7
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Zhang QW, An K, Liu LC, Guo S, Jiang C, Guo H, He W. Rhodium-Catalyzed Intramolecular C−H Silylation by Silacyclobutanes. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201602376] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Qing-Wei Zhang
- School of Pharmaceutical Sciences; Tsinghua University; Beijing 100084 China
| | - Kun An
- School of Pharmaceutical Sciences; Tsinghua University; Beijing 100084 China
| | - Li-Chuan Liu
- School of Pharmaceutical Sciences; Tsinghua University; Beijing 100084 China
| | - Shuangxi Guo
- School of Pharmaceutical Sciences; Tsinghua University; Beijing 100084 China
| | - Chenran Jiang
- School of Pharmaceutical Sciences; Tsinghua University; Beijing 100084 China
| | - Huifang Guo
- School of Pharmaceutical Sciences; Tsinghua University; Beijing 100084 China
| | - Wei He
- School of Pharmaceutical Sciences; Tsinghua University; Beijing 100084 China
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8
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Zhang QW, An K, Liu LC, Guo S, Jiang C, Guo H, He W. Rhodium-Catalyzed Intramolecular C-H Silylation by Silacyclobutanes. Angew Chem Int Ed Engl 2016; 55:6319-23. [PMID: 27073004 DOI: 10.1002/anie.201602376] [Citation(s) in RCA: 76] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2016] [Indexed: 11/11/2022]
Abstract
Silacyclobutane was discovered to be an efficient C-H bond silylation reagent. Under the catalysis of Rh(I) /TMS-segphos, silacyclobutane undergoes sequential C-Si/C-H bond activations, affording a series of π-conjugated siloles in high yields and regioselectivities. The catalytic cycle was proposed to involve a rarely documented endocyclic β-hydride elimination of five-membered metallacycles, which after reductive elimination gave rise to a Si-Rh(I) species that is capable of C-H activation.
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Affiliation(s)
- Qing-Wei Zhang
- School of Pharmaceutical Sciences, Tsinghua University, Beijing, 100084, China
| | - Kun An
- School of Pharmaceutical Sciences, Tsinghua University, Beijing, 100084, China
| | - Li-Chuan Liu
- School of Pharmaceutical Sciences, Tsinghua University, Beijing, 100084, China
| | - Shuangxi Guo
- School of Pharmaceutical Sciences, Tsinghua University, Beijing, 100084, China
| | - Chenran Jiang
- School of Pharmaceutical Sciences, Tsinghua University, Beijing, 100084, China
| | - Huifang Guo
- School of Pharmaceutical Sciences, Tsinghua University, Beijing, 100084, China
| | - Wei He
- School of Pharmaceutical Sciences, Tsinghua University, Beijing, 100084, China.
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9
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Park JW, Kou KGM, Kim DK, Dong VM. Rh-Catalyzed Desymmetrization of α-Quaternary Centers by Isomerization-Hydroacylation. Chem Sci 2015; 6:4479-4483. [PMID: 26508999 PMCID: PMC4618402 DOI: 10.1039/c5sc01553g] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2015] [Accepted: 05/29/2015] [Indexed: 11/21/2022] Open
Abstract
We describe a Rh-catalyzed desymmetrization of all-carbon quaternary centers from α,α-bis(allyl)aldehydes by a cascade featuring isomerization and hydroacylation. This desymmetrization competes with two other novel olefin functionalizations that are triggered by C-H bond activation, including carboacylation and bisacylation. A BIPHEP ligand promotes enantioselective formation of α-vinylcyclopentanones. Mechanistic studies support irreversible and enantioselective olefin-isomerization followed by olefin-hydroacylation.
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Affiliation(s)
- Jung-Woo Park
- Department of Chemistry , University of California-Irvine , 4403 Natural Sciences 1, Irvine , California 92697 , USA .
| | - Kevin G. M. Kou
- Department of Chemistry , University of California-Irvine , 4403 Natural Sciences 1, Irvine , California 92697 , USA .
| | - Daniel K. Kim
- Department of Chemistry , University of California-Irvine , 4403 Natural Sciences 1, Irvine , California 92697 , USA .
| | - Vy M. Dong
- Department of Chemistry , University of California-Irvine , 4403 Natural Sciences 1, Irvine , California 92697 , USA .
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10
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Yip SYY, Aïssa C. Isomerization of Olefins Triggered by Rhodium-Catalyzed C-H Bond Activation: Control of Endocyclic β-Hydrogen Elimination. Angew Chem Int Ed Engl 2015; 54:6870-3. [PMID: 25907465 PMCID: PMC4497606 DOI: 10.1002/anie.201500596] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2015] [Revised: 03/12/2015] [Indexed: 11/07/2022]
Abstract
Five-membered metallacycles are typically reluctant to undergo endocyclic β-hydrogen elimination. The rhodium-catalyzed isomerization of 4-pentenals into 3-pentenals occurs through this elementary step and cleavage of two C-H bonds, as supported by deuterium-labeling studies. The reaction proceeds without decarbonylation, leads to trans olefins exclusively, and tolerates other olefins normally prone to isomerization. Endocyclic β-hydrogen elimination can also be controlled in an enantiodivergent reaction on a racemic mixture.
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Affiliation(s)
- Stephanie Y Y Yip
- Department of Chemistry, University of Liverpool, Crown Street, L69 7ZD (UK)
| | - Christophe Aïssa
- Department of Chemistry, University of Liverpool, Crown Street, L69 7ZD (UK).
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11
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Yip SYY, Aïssa C. Isomerization of Olefins Triggered by Rhodium-Catalyzed CH Bond Activation: Control of Endocyclic β-Hydrogen Elimination. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201500596] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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12
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An K, Zhu J. Why Does Activation of the Weaker C═S Bond in CS2 by P/N-Based Frustrated Lewis Pairs Require More Energy Than That of the C═O Bond in CO2? A DFT Study. Organometallics 2014. [DOI: 10.1021/om5009346] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Ke An
- State Key Laboratory of Physical
Chemistry
of Solid Surfaces, Fujian Provincial Key Laboratory of Theoretical
and Computational Chemistry, Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, People’s Republic of China
| | - Jun Zhu
- State Key Laboratory of Physical
Chemistry
of Solid Surfaces, Fujian Provincial Key Laboratory of Theoretical
and Computational Chemistry, Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, People’s Republic of China
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13
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Huang Y, Zhu J. Unexpected 1,2-migration in metallasilabenzenes: theoretical evidence for reluctance of silicon to participate in π bonding. Chem Asian J 2014; 10:405-10. [PMID: 25385431 DOI: 10.1002/asia.201402992] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2014] [Indexed: 11/08/2022]
Abstract
Density functional theory (DFT) calculations were carried out to investigate the 1,2-migration in metallasilabenzenes. The results suggested that the chloride migration of metallabenzenes is unfavorable due to the loss of aromaticity in the nonaromatic analogues. In sharp contrast, such a migration in metallasilabenzenes is favorable due to the reluctance of silicon to participate in π bonding. The migration of hydride and methyl group from the metal center to the silicon atom in metallasilabenzenes is computed to be also feasible. In addition, the π donor ligand and the third row transition metal can stabilize metallasilabenzenes. Thus, such a migration becomes less favorable thermodynamically and kinetically. These findings could be very helpful for synthetic chemists to realize the first metallasilabenzene.
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Affiliation(s)
- Ying Huang
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Fujian Provincial Key Laboratory of Theoretical and Computational Chemistry and Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005(P. R. China) http://junzhu.chem8.org
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14
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Peng Q, Yan H, Zhang X, Wu YD. Conjugate Addition vs Heck Reaction: A Theoretical Study on Competitive Coupling Catalyzed by Isoelectronic Metal (Pd(II) and Rh(I)). J Org Chem 2012; 77:7487-96. [DOI: 10.1021/jo301319j] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Qian Peng
- Shanghai-HongKong Joint Laboratory in Chemical Synthesis, Shanghai Institute of Organic Chemistry, Chinese Academy
of Sciences, 345 Ling Ling Road, Shanghai, 200032, China
| | - Hong Yan
- Lab of Computational Chemistry
and Drug Design, Laboratory of Chemical Genomics, Peking University Shenzhen Graduate School, Shenzhen 518055,
China
- State Key Laboratory
of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Xinhao Zhang
- Lab of Computational Chemistry
and Drug Design, Laboratory of Chemical Genomics, Peking University Shenzhen Graduate School, Shenzhen 518055,
China
| | - Yun-Dong Wu
- Shanghai-HongKong Joint Laboratory in Chemical Synthesis, Shanghai Institute of Organic Chemistry, Chinese Academy
of Sciences, 345 Ling Ling Road, Shanghai, 200032, China
- Lab of Computational Chemistry
and Drug Design, Laboratory of Chemical Genomics, Peking University Shenzhen Graduate School, Shenzhen 518055,
China
- Department of Chemistry, The Hong Kong University of Science & Technology, Kowloon, Hong Kong, China
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15
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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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16
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Qiu Z, Ren S, Xie Z. Transition metal-carboryne complexes: synthesis, bonding, and reactivity. Acc Chem Res 2011; 44:299-309. [PMID: 21395260 DOI: 10.1021/ar100156f] [Citation(s) in RCA: 184] [Impact Index Per Article: 14.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The construction and transformation of metal-carbon (M-C) bonds constitute the central themes of organometallic chemistry. Most of the work in this field has focused on traditional M-C bonds involving tetravalent carbon: relatively little attention has been paid to the chemistry of nontraditional metal-carbon (M-C(cage)) bonds, such as carborane cages, in which the carbon is hypervalent. We therefore initiated a research program to study the chemistry of these nontraditional M-C(cage) bonds, with a view toward developing synthetic methodologies for functional carborane derivatives. In this Account, we describe our results in constructing and elucidating the chemistry of transition metal-carboryne complexes. Our work has shown that the M-C(cage) bonds in transition metal-carboranyl complexes are generally inert toward electrophiles, and hence significantly different from traditional M-C bonds. This lack of reactivity can be ascribed to steric effects resulting from the carboranyl moiety. To overcome this steric problem and to activate the nontraditional M-C(cage) bonds, we prepared a series of group 4 and group 10 transition metal-carboryne complexes (where carboryne is 1,2-dehydro-o-carborane), because the formation of metallacyclopropane opens up the coordination sphere and creates ring strain, facilitating the reactions of M-C(cage) bonds with electrophiles. Structural and theoretical studies on metal-carboryne complexes suggest that the bonding interaction between the metal atom and the carboryne unit is best described as a resonance hybrid of the M-C σ and M-C π bonds, similar to that observed in metal-benzyne complexes. The nickel-carboryne complex (η(2)-C(2)B(10)H(10))Ni(PPh(3))(2) can (i) undergo regioselective [2 + 2 + 2] cycloaddition reactions with 2 equiv of alkyne to afford benzocarboranes, (ii) react with 1 equiv of alkene to generate alkenylcarborane coupling products, and (iii) also undergo a three-component [2 + 2 + 2] cyclotrimerization with 1 equiv of activated alkene and 1 equiv of alkyne to give dihydrobenzocarboranes. The reaction of carboryne with alkynes is also catalyzed by Ni species. Subsequently, a Pd/Ni co-catalyzed [2 + 2 + 2] cycloaddition reaction of 1,3-dehydro-o-carborane with 2 equiv of alkyne was developed, leading to the efficient formation of C,B-substituted benzocarboranes in a single process. In contrast, the zirconium-carboryne species, generated in situ from Cp(2)Zr(μ-Cl)(μ-C(2)B(10)H(10))Li(OEt(2))(2), reacts with only 1 equiv of alkyne or polar unsaturated organic substrates (such as carbodiimides, nitriles, and azides) to give monoinsertion metallacycles, even in the presence of excess substrates. The resultant five-membered zirconacyclopentenes, incorporating a carboranyl unit, are an important class of intermediates for the synthesis of a variety of functionalized carboranes. Transmetalation of zirconacyclopentenes with other metals, such as Ni and Cu, was also found to be a very useful tool for various chemical transformations. Studies of metal-carboryne complexes remain a relatively young research area, particularly in comparison to the rich literature of metal-benzyne complexes. Other transition metal-carborynes are expected to be prepared and structurally characterized as the field progresses, and the results detailed here will further that effort by providing easy access to a wide range of functionalized carborane derivatives.
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Affiliation(s)
- Zaozao Qiu
- Department of Chemistry, The Chinese University of Hong Kong, Shatin, N. T., Hong Kong, People’s Republic of China
| | - Shikuo Ren
- Department of Chemistry, The Chinese University of Hong Kong, Shatin, N. T., Hong Kong, People’s Republic of China
| | - Zuowei Xie
- Department of Chemistry, The Chinese University of Hong Kong, Shatin, N. T., Hong Kong, People’s Republic of China
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17
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Unique chemical properties of metal-carbon bonds in metal-carboranyl and metal-carboryne complexes. ACTA ACUST UNITED AC 2009. [DOI: 10.1007/s11426-009-0184-y] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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18
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Epshteyn A, Trunkely EF, Kissounko DA, Fettinger JC, Sita LR. Experimental Modeling of Selective Alkene Oligomerization: Evidence for Facile Metallacyclopentane Dehydrogenation Mediated by a Transannular β-Hydrogen Agostic Interaction. Organometallics 2009. [DOI: 10.1021/om900132u] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Albert Epshteyn
- Department of Chemistry and Biochemistry, University of Maryland, College Park, Maryland 20742
| | - Emily F. Trunkely
- Department of Chemistry and Biochemistry, University of Maryland, College Park, Maryland 20742
| | - Denis A. Kissounko
- Department of Chemistry and Biochemistry, University of Maryland, College Park, Maryland 20742
| | - James C. Fettinger
- Department of Chemistry and Biochemistry, University of Maryland, College Park, Maryland 20742
| | - Lawrence R. Sita
- Department of Chemistry and Biochemistry, University of Maryland, College Park, Maryland 20742
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19
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Xia JL, Xiong WC, Chen G, Yu GA, Jin S, Liu SH. Reactions of [Cp*Ru(H2O)(NBD)]+ with diynes. TRANSIT METAL CHEM 2009. [DOI: 10.1007/s11243-009-9207-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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20
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Xue L, Ng KC, Lin Z. Theoretical studies on β-aryl elimination from Rh(i) complexes. Dalton Trans 2009:5841-50. [DOI: 10.1039/b902539a] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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21
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OSHIMA M, INOUE N. Theoretical Studies of the β-Hydrogen Elimination from π-Allyl Palladium Complexes. JOURNAL OF COMPUTER CHEMISTRY-JAPAN 2009. [DOI: 10.2477/jccj.h2031] [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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Qiu Z, Xie Z. Nickel-Mediated Coupling Reactions of Carboryne with Alkenes: A Synthetic Route to Alkenylcarboranes. Angew Chem Int Ed Engl 2008; 47:6572-5. [DOI: 10.1002/anie.200801958] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Qiu Z, Xie Z. Nickel-Mediated Coupling Reactions of Carboryne with Alkenes: A Synthetic Route to Alkenylcarboranes. Angew Chem Int Ed Engl 2008. [DOI: 10.1002/ange.200801958] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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25
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Glascoe EA, Kling MF, Shanoski JE, DiStasio RA, Payne CK, Mork BV, Tilley TD, Harris CB. Photoinduced β-Hydrogen Elimination and Radical Formation with CpW(CO)3(CH2CH3): Ultrafast IR and DFT Studies. Organometallics 2007. [DOI: 10.1021/om060455i] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Elizabeth A. Glascoe
- Department of Chemistry, University of California, and Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720
| | - Matthias F. Kling
- Department of Chemistry, University of California, and Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720
| | - Jennifer E. Shanoski
- Department of Chemistry, University of California, and Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720
| | - Robert A. DiStasio
- Department of Chemistry, University of California, and Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720
| | - Christine K. Payne
- Department of Chemistry, University of California, and Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720
| | - Benjamin V. Mork
- Department of Chemistry, University of California, and Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720
| | - T. Don Tilley
- Department of Chemistry, University of California, and Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720
| | - Charles B. Harris
- Department of Chemistry, University of California, and Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720
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Wang Q, Fan H, Xi Z. 1-Zircona-2-cyclohexenes: Novel Synthesis and Preliminary Reactions. Organometallics 2007. [DOI: 10.1021/om060995f] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Qifeng Wang
- Beijing National Laboratory for Molecular Sciences (BNLMS), Institute of Chemistry, Chinese Academy of Sciences (CAS), Beijing 100080, China, and Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, College of Chemistry, Peking University, Beijing 100871, China, and State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, China
| | - Hongtao Fan
- Beijing National Laboratory for Molecular Sciences (BNLMS), Institute of Chemistry, Chinese Academy of Sciences (CAS), Beijing 100080, China, and Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, College of Chemistry, Peking University, Beijing 100871, China, and State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, China
| | - Zhenfeng Xi
- Beijing National Laboratory for Molecular Sciences (BNLMS), Institute of Chemistry, Chinese Academy of Sciences (CAS), Beijing 100080, China, and Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, College of Chemistry, Peking University, Beijing 100871, China, and State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, China
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Xue P, Zhu J, Liu SH, Huang X, Ng WS, Sung HHY, Williams ID, Lin Z, Jia G. Reactions of [Cp*Ru(H2O)(NBD)]+ with Dihydrogen, Silanes, Olefins, Alkynes, and Allenes. Organometallics 2006. [DOI: 10.1021/om0600285] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Peng Xue
- Department of Chemistry and Open Laboratory of Chirotechnology of the Institute of Molecular Technology for Drug Discovery and Synthesis, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong
| | - Jun Zhu
- Department of Chemistry and Open Laboratory of Chirotechnology of the Institute of Molecular Technology for Drug Discovery and Synthesis, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong
| | - Sheng Hua Liu
- Department of Chemistry and Open Laboratory of Chirotechnology of the Institute of Molecular Technology for Drug Discovery and Synthesis, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong
| | - Xin Huang
- Department of Chemistry and Open Laboratory of Chirotechnology of the Institute of Molecular Technology for Drug Discovery and Synthesis, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong
| | - Weng Sang Ng
- Department of Chemistry and Open Laboratory of Chirotechnology of the Institute of Molecular Technology for Drug Discovery and Synthesis, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong
| | - Herman H. Y. Sung
- Department of Chemistry and Open Laboratory of Chirotechnology of the Institute of Molecular Technology for Drug Discovery and Synthesis, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong
| | - Ian D. Williams
- Department of Chemistry and Open Laboratory of Chirotechnology of the Institute of Molecular Technology for Drug Discovery and Synthesis, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong
| | - Zhenyang Lin
- Department of Chemistry and Open Laboratory of Chirotechnology of the Institute of Molecular Technology for Drug Discovery and Synthesis, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong
| | - Guochen Jia
- Department of Chemistry and Open Laboratory of Chirotechnology of the Institute of Molecular Technology for Drug Discovery and Synthesis, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong
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Zhao H, Ariafard A, Lin Z. β-Heteroatom versus β-Hydrogen Elimination: A Theoretical Study. Organometallics 2006. [DOI: 10.1021/om050703v] [Citation(s) in RCA: 76] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Haitao Zhao
- Department of Chemistry and Open Laboratory of Chirotechnology of the Institute of Molecular Technology for Drug Discovery and Synthesis, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong
| | - Alireza Ariafard
- Department of Chemistry and Open Laboratory of Chirotechnology of the Institute of Molecular Technology for Drug Discovery and Synthesis, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong
| | - Zhenyang Lin
- Department of Chemistry and Open Laboratory of Chirotechnology of the Institute of Molecular Technology for Drug Discovery and Synthesis, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong
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Metallacycloalkanes – Synthesis, Structure and Reactivity of Medium to Large Ring Compounds. ADVANCES IN ORGANOMETALLIC CHEMISTRY 2006. [DOI: 10.1016/s0065-3055(05)54004-8] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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Ura Y, Tsujita H, Wada K, Kondo T, Mitsudo TA. Ruthenium-Complex-Catalyzed Regio- and Stereoselective Linear Codimerization of 2-Norbornenes with Acrylic Compounds. J Org Chem 2005; 70:6623-8. [PMID: 16095279 DOI: 10.1021/jo050413o] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A linear codimerization of 2-norbornenes with acrylic compounds such as acrylates and an acrylamide proceeded efficiently by ruthenium catalyst systems, RuCl3(tpy)/Zn (tpy = 2,2':6',2' '-terpyridine) or [RuCl2(C6H6)]2/Zn in a primary or secondary alcoholic solvent, to afford the corresponding exo-trans-2-norbornylacrylates as major products regio- and stereoselectively along with a small amount of cis isomers. The reaction of 2,5-norbornadiene with methyl acrylate also gave the linear exo-trans codimer, which was effectively catalyzed by the addition of triarylphosphines to the RuCl3(tpy)/Zn catalyst system.
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Affiliation(s)
- Yasuyuki Ura
- Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto 615-8510, Japan
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