1
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Klein-Hessling C, Blockhaus T, Sünkel K. Synthesis, spectroscopic and crystallographic characterization of various cymantrenyl thioethers [Mn{C 5H xBr y(SMe) z}(PPh 3)(CO) 2]. Acta Crystallogr C Struct Chem 2024; 80:383-393. [PMID: 38967631 PMCID: PMC11299206 DOI: 10.1107/s205322962400603x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2024] [Accepted: 06/21/2024] [Indexed: 07/06/2024] Open
Abstract
Starting from [Mn(C5H4Br)(PPh3)(CO)2] (1a), the cymantrenyl thioethers [Mn(C5H4SMe)(PPh3)(CO)2] (1b) and [Mn{C5H4-nBr(SMe)n}(PPh3)(CO)2] (n = 1 for compound 2, n = 2 for 3 and n = 3 for 4) were obtained, using either n-butyllithium (n-BuLi), lithium diisopropylamide (LDA) or lithium tetramethylpiperidide (LiTMP) as base, followed by electrophilic quenching with MeSSMe. Stepwise consecutive reaction of [Mn(C5Br5)(PPh3)(CO)2] with n-BuLi and MeSSMe led finally to [Mn{C5(SMe)5}(PPh3)(CO)2] (11), only the fifth complex to be reported containing a perthiolated cyclopentadienyl ring. The molecular and crystal structures of 1b, 3, 4 and 11 were determined and were studied for the occurrence of S...S and S...Br interactions. It turned out that although some interactions of this type occurred, they were of minor importance for the arrangement of the molecules in the crystal.
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Affiliation(s)
- Christian Klein-Hessling
- Chemistry, Ludwig-Maximilians-University Munich, Butenandtstrasse 5-13, Munich, D-81377, Germany
| | - Tobias Blockhaus
- Chemistry, Ludwig-Maximilians-University Munich, Butenandtstrasse 5-13, Munich, D-81377, Germany
| | - Karlheinz Sünkel
- Chemistry, Ludwig-Maximilians-University Munich, Butenandtstrasse 5-13, Munich, D-81377, Germany
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2
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Li J, Chu Z, Lu Z, Luo M, Chen D, Xia H. Reactivity Studies of a Hydroxy-Substituted Irida-carbolong Complex. Organometallics 2022. [DOI: 10.1021/acs.organomet.2c00306] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jinhua Li
- Shenzhen Grubbs Institute and Guangdong Provincial Key Laboratory of Catalysis, Department of Chemistry, Southern University of Science and Technology, Shenzhen 518055, People’s Republic of China
- Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, People’s Republic of China
| | - Zhenwei Chu
- Shenzhen Grubbs Institute and Guangdong Provincial Key Laboratory of Catalysis, Department of Chemistry, Southern University of Science and Technology, Shenzhen 518055, People’s Republic of China
| | - Zhengyu Lu
- Shenzhen Grubbs Institute and Guangdong Provincial Key Laboratory of Catalysis, Department of Chemistry, Southern University of Science and Technology, Shenzhen 518055, People’s Republic of China
| | - Ming Luo
- Shenzhen Grubbs Institute and Guangdong Provincial Key Laboratory of Catalysis, Department of Chemistry, Southern University of Science and Technology, Shenzhen 518055, People’s Republic of China
| | - Dafa Chen
- Shenzhen Grubbs Institute and Guangdong Provincial Key Laboratory of Catalysis, Department of Chemistry, Southern University of Science and Technology, Shenzhen 518055, People’s Republic of China
| | - Haiping Xia
- Shenzhen Grubbs Institute and Guangdong Provincial Key Laboratory of Catalysis, Department of Chemistry, Southern University of Science and Technology, Shenzhen 518055, People’s Republic of China
- Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, People’s Republic of China
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3
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Wei W, Sung HHY, Williams ID, Jia G. Reactions of Alkyl‐Substituted Rhenacyclobutadiene Complexes with Electron‐Rich Alkynes. Eur J Inorg Chem 2022. [DOI: 10.1002/ejic.202200279] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Wei Wei
- Department of Chemistry Hong Kong University of Science and Technology Clear Water Bay Hong Kong China
| | - Herman H. Y. Sung
- Department of Chemistry Hong Kong University of Science and Technology Clear Water Bay Hong Kong China
| | - Ian D. Williams
- Department of Chemistry Hong Kong University of Science and Technology Clear Water Bay Hong Kong China
| | - Guochen Jia
- Department of Chemistry Hong Kong University of Science and Technology Clear Water Bay Hong Kong China
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4
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Yeung CF, Shek HL, Yiu SM, Tse MK, Wong CY. Controlled Activation of Dipicolinyl-Substituted Propargylic Alcohol by Ru(II) and Os(II) for Unprecedented Indolizine-Fused Metallafuran Complexes. Organometallics 2021. [DOI: 10.1021/acs.organomet.1c00197] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Chi-Fung Yeung
- Department of Chemistry, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong SAR
- State Key Laboratory of Terahertz and Millimeter Waves, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong SAR
| | - Hau-Lam Shek
- Department of Chemistry, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong SAR
| | - Shek-Man Yiu
- Department of Chemistry, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong SAR
| | - Man-Kit Tse
- Department of Chemistry, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong SAR
| | - Chun-Yuen Wong
- Department of Chemistry, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong SAR
- State Key Laboratory of Terahertz and Millimeter Waves, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong SAR
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5
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Su Q, Ding J, Du Z, Lai Y, Li H, Ouyang MA, Song L, Lin R. Recent Advances in the Reactions of Cyclic Carbynes. Molecules 2020; 25:E5050. [PMID: 33143337 PMCID: PMC7663793 DOI: 10.3390/molecules25215050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2020] [Revised: 10/26/2020] [Accepted: 10/28/2020] [Indexed: 11/17/2022] Open
Abstract
The acyclic organic alkynes and carbyne bonds exhibit linear shapes. Metallabenzynes and metallapentalynes are six- or five-membered metallacycles containing carbynes, whose carbine-carbon bond angles are less than 180°. Such distortion results in considerable ring strain, resulting in the unprecedented reactivity compared with acyclic carbynes. Meanwhile, the aromaticity of these metallacycles would stabilize the ring system. The fascinating combination of ring strain and aromaticity would lead to interesting reactivities. This mini review summarized recent findings on the reactivity of the metal-carbon triple bonds and the aromatic ring system. In the case of metallabenzynes, aromaticity would prevail over ring strain. The reactions are similar to those of organic aromatics, especially in electrophilic reactions. Meanwhile, fragmentation of metallacarbynes might be observed via migratory insertion if the aromaticity of metallacarbynes is strongly affected. In the case of metallapentalynes, the extremely small bond angle would result in high reactivity of the carbyne moiety, which would undergo typical reactions for organic alkynes, including interaction with coinage metal complexes, electrophilic reactions, nucleophilic reactions and cycloaddition reactions, whereas the strong aromaticity ensured the integrity of the bicyclic framework of metallapentalynes throughout all reported reaction conditions.
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Affiliation(s)
| | | | | | | | | | | | - Liyan Song
- Key Laboratory of Biopesticide and Chemical Biology (Ministry of Education), College of Plant Protection, Fujian Agriculture and Forestry University, Fuzhou 350002, China; (Q.S.); (J.D.); (Z.D.); (Y.L.); (H.L.); (M.-A.O.)
| | - Ran Lin
- Key Laboratory of Biopesticide and Chemical Biology (Ministry of Education), College of Plant Protection, Fujian Agriculture and Forestry University, Fuzhou 350002, China; (Q.S.); (J.D.); (Z.D.); (Y.L.); (H.L.); (M.-A.O.)
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6
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Abstract
Since the prediction of the existence of metallabenzenes in 1979, metallaaromatic chemistry has developed rapidly, due to its importance in both experimental and theoretical fields. Now six major types of metallaromatic compounds, metallabenzenes, metallabenzynes, heterometallaaromatics, dianion metalloles, metallapentalenes and metallapentalynes (also termed carbolongs), and spiro metalloles, have been reported and extensively studied. Their parent organic analogues may be aromatic, non-aromatic, or even anti-aromatic. These unique systems not only enrich the large family of aromatics, but they also broaden our understanding and extend the concept of aromaticity. This review provides a comprehensive overview of metallaaromatic chemistry. We have focused on not only the six major classes of metallaaromatics, including the main-group-metal-based metallaaromatics, but also other types, such as metallacyclobutadienes and metallacyclopropenes. The structures, synthetic methods, and reactivities are described, their applications are covered, and the challenges and future prospects of the area are discussed. The criteria commonly used to judge the aromaticity of metallaaromatics are presented.
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Affiliation(s)
- Dafa Chen
- Shenzhen Grubbs Institute and Guangdong Provincial Key Laboratory of Catalysis, Department of Chemistry, Southern University of Science and Technology, Shenzhen, People's Republic of China
| | - Yuhui Hua
- Shenzhen Grubbs Institute and Guangdong Provincial Key Laboratory of Catalysis, Department of Chemistry, Southern University of Science and Technology, Shenzhen, People's Republic of China.,State Key Laboratory of Physical Chemistry of Solid Surfaces, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, People's Republic of China
| | - Haiping Xia
- Shenzhen Grubbs Institute and Guangdong Provincial Key Laboratory of Catalysis, Department of Chemistry, Southern University of Science and Technology, Shenzhen, People's Republic of China.,State Key Laboratory of Physical Chemistry of Solid Surfaces, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, People's Republic of China
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7
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Albertin G, Antoniutti S, Castro J, Sibilla F. Pentamethylcyclopentadienyl osmium complexes that contain diazoalkane, dioxygen and allenylidene ligands: preparation and reactivity. Dalton Trans 2019; 48:3116-3131. [PMID: 30768111 DOI: 10.1039/c9dt00223e] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Diazoalkane complexes [Os(η5-C5Me5)(N2CAr1Ar2)(PPh3){P(OR)3}]BPh4 (1, 2) [R = Me (1), Et (2); Ar1 = Ar2 = Ph (a); Ar1 = Ph, Ar2 = p-tolyl (b); Ar1Ar2 = C12H8 (fluorenyl) (c)] were prepared by reacting bromo-compounds OsBr(η5-C5Me5)(PPh3){P(OR)3} with an excess of diazoalkane in ethanol. The treatment of diazoalkane complexes 1 and 2 with acetylene under mild conditions (1 atm, RT) led to dipolar (3 + 2) cycloaddition affording 3H-pyrazole derivatives [Os(η5-C5Me5)(η1-[upper bond 1 start]N[double bond, length as m-dash]NC(C12H8)CH[double bond, length as m-dash]C[upper bond 1 end]H)(PPh3){P(OR)3}]BPh4 (6, 7) [R = Me (6), Et (7)] whereas reactions with terminal alkynes R1C[triple bond, length as m-dash]CH (R1 = Ph, p-tolyl, COOMe) gave vinylidene derivatives [Os(η5-C5Me5){[double bond, length as m-dash]C[double bond, length as m-dash]C(H)R1}(PPh3){P(OR)3}]BPh4 (8b-d, 9b-d) [R = Me (8), Et (9); R1 = Ph (b), p-tolyl (c), COOMe (d)]. Exposure to air of dichloromethane solutions of complexes 1 and 2 produced dioxygen derivatives [Os(η5-C5Me5)(η2-O2)(PPh3){P(OR)3}]BPh4 (10, 11) [R = Me (10), Et (11)]. Allenylidene [Os][double bond, length as m-dash]C[double bond, length as m-dash]C[double bond, length as m-dash]CR1R2 (12-14) [R1 = R2 = Ph (12, 13); R1 = Ph, R2 = Me (14)], vinylvinylidene [Os][double bond, length as m-dash]C[double bond, length as m-dash]C(H)C(Ph)[double bond, length as m-dash]CH2 (15) and 3-hydroxyvinylidene [Os][double bond, length as m-dash]C[double bond, length as m-dash]C(H)C(H)R2(OH) (16, 17) [R2 = Ph (16), H (17)] derivatives were also prepared. The vinylidene complex [Os(η5-C5Me5)([double bond, length as m-dash]C[double bond, length as m-dash]CH2)(PPh3){P(OMe)3}]BPh4 (8a) reacted with PPh3 to afford the alkenylphosphonium derivative [Os(η5-C5Me5){η1-C(H)[double bond, length as m-dash]C(H)PPh3}(PPh3){P(OMe)3}]BPh4 (18) whereas vinylidene complexes 8 and 9 reacted with water leading to the hydrolysis of the alkyne and the formation of carbonyl complexes [Os(η5-C5Me5)(CO)(PPh3){P(OR)3}]BPh4 (19, 20). The complexes were characterised by spectroscopic data (IR and NMR) and by X-ray crystal structure determination of [Os(η5-C5Me5){[double bond, length as m-dash]C[double bond, length as m-dash]C(H)p-tolyl}(PPh3){P(OEt)3}]BPh4 (9c), [Os(η5-C5Me5)(η2-O2)(PPh3){P(OMe)3}]BPh4 (10) and [Os(η5-C5Me5)(CO)(PPh3){P(OMe)3}]BPh4 (19).
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Affiliation(s)
- Gabriele Albertin
- Dipartimento di Scienze Molecolari e Nanosistemi, Università Ca' Foscari Venezia, Via Torino 155, 30172 Venezia Mestre, Italy.
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8
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Talavera M, Pereira-Cameselle R, Bolaño S. Rhodafuran from a methoxy(alkenyl)carbene by the rhoda-1,3,5-hexatriene route. Dalton Trans 2018; 47:9064-9071. [PMID: 29931013 DOI: 10.1039/c8dt01889h] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A methoxy(alkenyl)carbenerhodium complex [RhCp*Cl{[double bond, length as m-dash]C(OMe)CH[double bond, length as m-dash]CPh2}(PMe3)]PF6 (2) has been synthesized and used as the starting material for the study of the effect of the metal center (Rh vs. Ir) in the formation of new rhodacycle complexes. While η3 and η5 indenylrhodium complexes have been achieved by the C-H bond activation of a phenyl ring, insertion of terminal alkynes into the rhodium-carbene bond led to the first example of the synthesis of rhodafuran complexes through rhoda-1,3,5-hexatriene intermediates. This new method represents an efficient process to obtain metallafuran complexes.
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Affiliation(s)
- M Talavera
- Departamento de Química Inorgánica, Universidad de Vigo, Campus Universitario, E-36310 Vigo, Spain.
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9
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Zhou X, Zhang H. Reactions of Metal-Carbon Bonds within Six-Membered Metallaaromatic Rings. Chemistry 2018; 24:8962-8973. [DOI: 10.1002/chem.201705679] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2017] [Indexed: 11/10/2022]
Affiliation(s)
- Xiaoxi Zhou
- State Key Laboratory of Physical Chemistry of Solid Surfaces and Collaborative Innovation Center of Chemistry for Energy Materials ( i ChEM); Xiamen University; P. R. China
- Department of Chemistry, College of Chemistry and Chemical Engineering; Xiamen University; Xiamen 361005 P. R. China
| | - Hong Zhang
- State Key Laboratory of Physical Chemistry of Solid Surfaces and Collaborative Innovation Center of Chemistry for Energy Materials ( i ChEM); Xiamen University; P. R. China
- Department of Chemistry, College of Chemistry and Chemical Engineering; Xiamen University; Xiamen 361005 P. R. China
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10
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An K, Zhu J. Predicting an unconventional facile route to metallaanthracenes. Dalton Trans 2018; 47:5575-5581. [DOI: 10.1039/c8dt00455b] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
DFT calculations reveal an unconventional facile route to metallaanthracenes caused by stabilisation of phosphonium substituents.
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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
| | - 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
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11
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Abstract
Metallaaromatics can be broadly defined as aromatic compounds in which one of the ring atoms is a transition metal. The metallabenzenes are one important class of these compounds that has undergone extensive study recently. Closely related species such as fused-ring metallabenzenes, heterometallabenzenes, π-coordinated metallabenzenes and metallabenzynes have also attracted considerable attention. Although many metallaaromatics can be considered as metalla-analogues of classic organic aromatic compounds, this is not always the case. Recent seminal studies have shown that metallapentalenes and metallapentalynes, which are metalla-analogues of the anti-aromatic compounds pentalene and pentalyne, are in fact aromatic and highly stable. Very unusual spiro-metallaaromatic compounds have also recently been isolated. In this concepts article, key features of all these intriguing metallaaromatic compounds are discussed with reference to the structural, spectroscopic, reactivity and theoretical studies that have been undertaken. These compounds continue to generate much interest, not only because of the contributions they make to fundamental chemical understanding, but also because of the promise of possible practical applications.
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Affiliation(s)
- Benjamin J Frogley
- School of Chemical Sciences, University of Auckland, Private Bag, 92019, Auckland, New Zealand
| | - L James Wright
- School of Chemical Sciences, University of Auckland, Private Bag, 92019, Auckland, New Zealand
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12
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Frogley BJ, Perera LC, Wright LJ. Syntheses of Amino-Substituted Iridabenzofurans and Subsequent Selective N-Functionalisation. Chemistry 2017; 24:4304-4309. [PMID: 29114951 DOI: 10.1002/chem.201704677] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2017] [Revised: 11/07/2017] [Indexed: 11/12/2022]
Abstract
The first examples of amino-substituted fused-ring metallabenzenes, the cationic iridabenzofuran [Ir(C7 H4 O{NH2 -2}{OMe-7})(CO)(PPh3 )2 ][O3 SCF3 ] (5) and neutral analogue Ir(C7 H4 {NH2 -2}{OMe-7})Cl(PPh3 )2 (6), can be prepared by reduction of the corresponding nitro-substituted iridabenzofurans with zinc and concentrated hydrochloric acid. N-functionalised derivatives of 5 and 6 are formed through alkylation, sulfonylation or acylation. Thus, consecutive treatments with methyl triflate and base gives the corresponding trimethylammonium-substituted iridabenzofurans while sulfonamide derivatives are formed with p-toluenesulfonyl chloride. N-Acylation of 5 or 6 with acid chlorides, however, selectively form either amide or imide products depending on the charge on the metal and the steric size of the acid chloride. Cationic 5 gives amide substituted products regardless of the conditions whereas neutral 6 rapidly undergoes di-N-acylation with excess benzoyl chloride under mild conditions to give the imide-substituted product Ir(C7 H4 O{N[C(O)Ph]2 -2}{OMe-7})Cl(PPh3 )2 (13). Selective mono-acylation of 6 can be achieved with one equivalent of benzoyl chloride or with excess of the sterically congested pivaloyl chloride.
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Affiliation(s)
- Benjamin J Frogley
- School of Chemical Sciences, University of Auckland, Private Bag 92019, Auckland, New Zealand
| | - Lakshika C Perera
- School of Chemical Sciences, University of Auckland, Private Bag 92019, Auckland, New Zealand
| | - L James Wright
- School of Chemical Sciences, University of Auckland, Private Bag 92019, Auckland, New Zealand
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13
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Li J, Li G, Xie Y, King RB, Schaefer HF. Enhanced Relative Stability of Metallabenzenes versus Metallocenes upon Ring Perfluorination: Nickel, Palladium, and Platinum Systems. Eur J Inorg Chem 2017. [DOI: 10.1002/ejic.201700810] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Jing Li
- MOE Key Laboratory of Theoretical Chemistry of the Environment Center for Computational Quantum Chemistry South China Normal University 510006 Guangzhou P. R. China
| | - Guoliang Li
- MOE Key Laboratory of Theoretical Chemistry of the Environment Center for Computational Quantum Chemistry South China Normal University 510006 Guangzhou P. R. China
- Guangzhou Key Laboratory of Materials for Energy Conversion and Storage School of Chemistry and Environment South China Normal University 510006 Guangzhou P. R. China
- Department of Chemistry and Center for Computational Chemistry University of Georgia 30602 Athens Georgia USA
| | - Yaoming Xie
- Department of Chemistry and Center for Computational Chemistry University of Georgia 30602 Athens Georgia USA
| | - R. Bruce King
- MOE Key Laboratory of Theoretical Chemistry of the Environment Center for Computational Quantum Chemistry South China Normal University 510006 Guangzhou P. R. China
- Department of Chemistry and Center for Computational Chemistry University of Georgia 30602 Athens Georgia USA
| | - Henry F. Schaefer
- Department of Chemistry and Center for Computational Chemistry University of Georgia 30602 Athens Georgia USA
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Wen TB, Lee KH, Chen J, Hung WY, Bai W, Li H, Sung HHY, Williams ID, Lin Z, Jia G. Preparation of Osmium η3-Allenylcarbene Complexes and Their Uses for the Syntheses of Osmabenzyne Complexes. Organometallics 2016. [DOI: 10.1021/acs.organomet.6b00102] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Ting Bin Wen
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong
| | - Ka-Ho Lee
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong
| | - Jiangxi Chen
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong
| | - Wai Yiu Hung
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong
| | - Wei Bai
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong
| | - Huacheng Li
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong
| | - Herman H. Y. Sung
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong
| | - Ian D. Williams
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong
| | - Zhenyang Lin
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong
| | - Guochen Jia
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong
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15
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Chen J, Lee KH, Wen T, Gao F, Sung HHY, Williams ID, Lin Z, Jia G. Rearrangement of Metallabenzynes to Chlorocyclopentadienyl Complexes. Organometallics 2015. [DOI: 10.1021/om501181u] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Jiangxi Chen
- Department
of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong
- Department
of Materials Science and Engineering, College of Materials, Xiamen University, Xiamen, China, 361005
| | - Ka-Ho Lee
- Department
of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong
| | - Tingbin Wen
- Department
of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong
| | - Feng Gao
- Department
of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong
| | - Herman H. Y. Sung
- Department
of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong
| | - Ian D. Williams
- Department
of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong
| | - Zhenyang Lin
- Department
of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong
| | - Guochen Jia
- Department
of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong
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16
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Wei Y, Zhou X, Hong G, Chen Z, Zhang H, Xia H. Reactions of osmapyridinium with terminal alkynes. Org Chem Front 2015. [DOI: 10.1039/c5qo00052a] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The reactions of osmapyridinium with terminal alkynes are presented, which lead to the formation of ten-membered osmacycles and η4-coordinated cyclopentadiene complexes.
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Affiliation(s)
- Yuanqing Wei
- State Key Laboratory for Physical Chemistry of Solid Surfaces
- Department of Chemistry
- College of Chemistry and Chemical Engineering
- Xiamen University
- Xiamen
| | - Xiaoxi Zhou
- State Key Laboratory for Physical Chemistry of Solid Surfaces
- Department of Chemistry
- College of Chemistry and Chemical Engineering
- Xiamen University
- Xiamen
| | - Guangning Hong
- State Key Laboratory for Physical Chemistry of Solid Surfaces
- Department of Chemistry
- College of Chemistry and Chemical Engineering
- Xiamen University
- Xiamen
| | - Zhixin Chen
- State Key Laboratory for Physical Chemistry of Solid Surfaces
- Department of Chemistry
- College of Chemistry and Chemical Engineering
- Xiamen University
- Xiamen
| | - Hong Zhang
- State Key Laboratory for Physical Chemistry of Solid Surfaces
- Department of Chemistry
- College of Chemistry and Chemical Engineering
- Xiamen University
- Xiamen
| | - Haiping Xia
- State Key Laboratory for Physical Chemistry of Solid Surfaces
- Department of Chemistry
- College of Chemistry and Chemical Engineering
- Xiamen University
- Xiamen
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Lin R, Lee KH, Sung HHY, Williams ID, Lin Z, Jia G. Rhenabenzenes and Unexpected Coupling Products from the Reactions of Rhenacyclobutadienes with Ethoxyethyne. Organometallics 2014. [DOI: 10.1021/om501034e] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Ran Lin
- Department of Chemistry, The Hong Kong University of Science and Technology,
Clear Water Bay, Kowloon, Hong Kong
| | - Ka-Ho Lee
- Department of Chemistry, The Hong Kong University of Science and Technology,
Clear Water Bay, Kowloon, Hong Kong
| | - Herman H. Y. Sung
- Department of Chemistry, The Hong Kong University of Science and Technology,
Clear Water Bay, Kowloon, Hong Kong
| | - Ian D. Williams
- Department of Chemistry, The Hong Kong University of Science and Technology,
Clear Water Bay, Kowloon, Hong Kong
| | - Zhenyang Lin
- Department of Chemistry, The Hong Kong University of Science and Technology,
Clear Water Bay, Kowloon, Hong Kong
| | - Guochen Jia
- Department of Chemistry, The Hong Kong University of Science and Technology,
Clear Water Bay, Kowloon, Hong Kong
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18
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Zeng Y, Feng H, King RB, Schaefer HF. Metallocene versus Metallabenzene Isomers of Nickel, Palladium, and Platinum. Organometallics 2014. [DOI: 10.1021/om500993z] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Yi Zeng
- School
of Physics and Chemistry, Research Center for Advanced Computation, Xihua University, Chengdu, China 610039
| | - Hao Feng
- School
of Physics and Chemistry, Research Center for Advanced Computation, Xihua University, Chengdu, China 610039
| | - R. Bruce King
- Department
of Chemistry and Center for Computational Chemistry, University of Georgia, Athens, Georgia 30602, United States
| | - Henry F. Schaefer
- Department
of Chemistry and Center for Computational Chemistry, University of Georgia, Athens, Georgia 30602, United States
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19
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Han F, Li J, Zhang H, Wang T, Lin Z, Xia H. Reactions of Osmabenzene with Silver/Copper Acetylides: From Metallabenzene to Benzene. Chemistry 2014; 21:565-7. [DOI: 10.1002/chem.201405220] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2014] [Indexed: 11/12/2022]
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20
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Lin R, Lee KH, Poon KC, Sung HHY, Williams ID, Lin Z, Jia G. Synthesis of Rhenabenzenes from the Reactions of Rhenacyclobutadienes with Ethoxyethyne. Chemistry 2014; 20:14885-99. [DOI: 10.1002/chem.201403186] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2014] [Indexed: 01/28/2023]
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21
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Fan J, Wang X, Zhu J. Unconventional Facile Way to Metallanaphthalenes from Metal Indenyl Complexes Predicted by DFT Calculations: Origin of Their Different Thermodynamics and Tuning Their Kinetics by Substituents. Organometallics 2014. [DOI: 10.1021/om500245q] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Jinglan Fan
- 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
| | - Xuerui Wang
- 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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22
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Abstract
Aromatic compounds, such as benzene and its derivatives, porphyrins, fullerenes, carbon nanotubes, and graphene, have numerous applications in biomedicine, materials science, energy science, and environmental science. Metalla-aromatics are analogues of conventional organic aromatic molecules in which one of the (hydro)carbon segments is formally replaced by an isolobal transition-metal fragment. Researchers have studied these transition-metal-containing aromatic molecules for the past three decades, particularly the synthesis and reactivity of metallabenzenes. Another focus has been the preparation and characterization of other metalla-aromatics such as metallafurans, metallapyridines, metallabenzynes, and more. Despite significant advances, remaining challenges in this field include the limited number of convenient and versatile synthetic methods to construct stable and fully characterized metalla-aromatics, and the relative shortage of new topologies. To address these challenges, we have developed new methods for preparing metalla-aromatics, especially those possessing new topologies. Our synthetic efforts have led to a large family of closely related metalla-aromatics known as aromatic osmacycles. This Account summarizes the synthesis and reactivity of these compounds, with a focus on features that are different from those of compounds developed by other groups. These osmacycles can be synthesized from simple precursors under mild conditions. Using these efficient methods, we have synthesized aromatic osmacycles such as osmabenzene, osmabenzyne, isoosmabenzene, osmafuran, and osmanaphthalene. Furthermore, these methods have also created a series of new topologies, such as osmabenzothiazole and osmapyridyne. Our studies of the reactivity of these osma-aromatics revealed unprecedented reaction patterns, and we demonstrated the interconversion of several osmacycles. Like other metalla-aromatics, osma-aromatics have spectroscopic features of aromaticity, such as ring planarity and the characteristic bond lengths between a single and double bond, but the osma-aromatics we have prepared also exhibit good stability towards air, water, and heat. Indeed, some seemingly unstable species proved stable, and their stability made it possible to study their optical, electrochemical, and magnetic properties. The stability of these compouds results from their aromaticity and the phosphonium substituents on the aromatic plane: most of our osma-aromatics carry at least one phosphonium group. The phosphonium group offers stability via both electronic and steric mechanisms. The phosphonium acts as an electron reservoir, allowing the circulation of electron pairs along metallacycles and lowering the electron density of the aromatic rings. Meanwhile, the bulky phosphonium groups surrounding the aromatic metallacycle prevent most reactions that could decompose the skeleton.
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Affiliation(s)
- Xiao-Yu Cao
- State Key Laboratory of Physical Chemistry of Solid Surfaces and Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Qianyi Zhao
- State Key Laboratory of Physical Chemistry of Solid Surfaces and Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Zhiqun Lin
- State Key Laboratory of Physical Chemistry of Solid Surfaces and Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
- School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
| | - Haiping Xia
- State Key Laboratory of Physical Chemistry of Solid Surfaces and Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
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23
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Huang C, Hao Y, Zhao Y, Zhu J. Computations Offer an Unconventional Route to Metallaphosphabenzene from a Half-Phosphametallocene. Organometallics 2014. [DOI: 10.1021/om401188v] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Chao Huang
- Department of Chemistry, College of Chemistry
and Chemical Engineering, and the Key Laboratory for Chemical Biology
of Fujian Province, Xiamen University, Xiamen 361005, People’s Republic of China
| | - Yulei Hao
- 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, People’s Republic of China
| | - Yufen Zhao
- Department of Chemistry, College of Chemistry
and Chemical Engineering, and the Key Laboratory for Chemical Biology
of Fujian Province, Xiamen University, Xiamen 361005, People’s Republic of China
- Key Lab of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education), Department of Chemistry, Tsinghua University, Beijing 100084, 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 and Department of Chemistry, College of
Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, People’s Republic of China
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24
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Affiliation(s)
- Guochen Jia
- Department
of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, People’s Republic of China
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25
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Chen J, Jia G. Recent development in the chemistry of transition metal-containing metallabenzenes and metallabenzynes. Coord Chem Rev 2013. [DOI: 10.1016/j.ccr.2013.01.014] [Citation(s) in RCA: 149] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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26
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Wang T, Zhang H, Han F, Long L, Lin Z, Xia H. cine-Substitution reactions of metallabenzenes: an experimental and computational study. Chemistry 2013; 19:10982-91. [PMID: 23843260 DOI: 10.1002/chem.201301398] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2013] [Indexed: 01/20/2023]
Abstract
Alkali-resistant osmabenzene [(SCN)2(PPh3)2Os{CHC(PPh3)CHCICH}] (2) can undergo nucleophilic aromatic substitution with MeOH or EtOH to give cine-substitution products [(SCN)2(PPh3)2Os{CHC(PPh3)CHCHCR}] (R=OMe (3), OEt(4)) in the presence of strong alkali. However, the reactions of compound 2 with various amines, such as n-butylamine and aniline, afford five-membered ring species, [(SCN)2(PPh3)2Os{CH=C(PPh3)CH=C(CH=NHR')}] (R'=nBu(8), Ph(9)), in addition to the desired cine-substitution products, [(SCN)2(PPh3)2Os{CHC(PPh3)CHCHC(NHR')}] (R'=nBu(6), Ph(7)), under similar reaction conditions. The mechanisms of these reactions have been investigated in detail with the aid of isotopic labeling experiments and density functional theory (DFT) calculations. The results reveal that the cine-substitution reactions occur through nucleophilic addition, dissociation of the leaving group, protonation, and deprotonation steps, which resemble the classical "addition-of-nucleophile, ring-opening, ring-closure" (ANRORC) mechanism. DFT calculations suggest that, in the reaction with MeOH, the formation of a five-membered metallacycle species is both kinetically and thermodynamically less favorable, which is consistent with the experimental results that only the cine-substitution product is observed. For the analogous reaction with n-butylamine, the pathway for the formation of the cine-substitution product is kinetically less favorable than the pathway for the formation of a five-membered ring species, but is much more thermodynamically favorable, again consistent with the experimental conversion of compound 8 into compound 6, which is observed in an in situ NMR experiment with an isolated pure sample of 8.
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Affiliation(s)
- Tongdao Wang
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Collaborative Innovation Center of Chemistry for Energy Materials, and College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, P.R. China
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27
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Anusha C, De S, Parameswaran P. Ring contraction of six-membered metallabenzynes to five-membered metal–carbene complexes: a comparison with organic analogues. Dalton Trans 2013; 42:14733-41. [DOI: 10.1039/c3dt51428e] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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28
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Chen J, Shi C, Sung HHY, Williams ID, Lin Z, Jia G. Synthesis and Characterization of Rhenabenzyne Complexes. Chemistry 2012; 18:14128-39. [DOI: 10.1002/chem.201202012] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2012] [Indexed: 11/09/2022]
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29
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Wang T, Zhang H, Han F, Lin R, Lin Z, Xia H. Synthesis and Characterization of a Metallapyridyne Complex. Angew Chem Int Ed Engl 2012; 51:9838-41. [DOI: 10.1002/anie.201204073] [Citation(s) in RCA: 61] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2012] [Indexed: 11/10/2022]
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30
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Wang T, Zhang H, Han F, Lin R, Lin Z, Xia H. Synthesis and Characterization of a Metallapyridyne Complex. Angew Chem Int Ed Engl 2012. [DOI: 10.1002/ange.201204073] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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31
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Herndon JW. The chemistry of the carbon–transition metal double and triple bond: Annual survey covering the year 2010. Coord Chem Rev 2012. [DOI: 10.1016/j.ccr.2012.02.015] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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32
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Lin R, Zhao J, Chen H, Zhang H, Xia H. Interconversion of Metallabenzenes and Cyclic η
2
‐Allene‐Coordinated Complexes. Chem Asian J 2012; 7:1915-24. [DOI: 10.1002/asia.201200231] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2012] [Revised: 04/15/2012] [Indexed: 12/12/2022]
Affiliation(s)
- Ran Lin
- State Key Laboratory for Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005 (P.R. China), Fax: (+86) 592‐2186628
| | - Jing Zhao
- State Key Laboratory for Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005 (P.R. China), Fax: (+86) 592‐2186628
| | - Hanyu Chen
- State Key Laboratory for Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005 (P.R. China), Fax: (+86) 592‐2186628
| | - Hong Zhang
- State Key Laboratory for Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005 (P.R. China), Fax: (+86) 592‐2186628
| | - Haiping Xia
- State Key Laboratory for Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005 (P.R. China), Fax: (+86) 592‐2186628
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33
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Dalebrook AF, Wright LJ. Metallabenzenes and Metallabenzenoids. ADVANCES IN ORGANOMETALLIC CHEMISTRY 2012. [DOI: 10.1016/b978-0-12-396970-5.00003-7] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
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34
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Hung WY, Liu B, Shou W, Wen TB, Shi C, Sung HHY, Williams ID, Lin Z, Jia G. Electrophilic substitution reactions of metallabenzynes. J Am Chem Soc 2011; 133:18350-60. [PMID: 21995454 DOI: 10.1021/ja207315h] [Citation(s) in RCA: 70] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
The electrophilic substitution reactions of metallabenzynes Os(≡CC(R)═C(CH(3))C(R)═CH)Cl(2)(PPh(3))(2) (R = SiMe(3), H) were studied. These metallabenzynes react with electrophilic reagents, including Br(2), NO(2)BF(4), NOBF(4), HCl/H(2)O(2), and AlCl(3)/H(2)O(2) to afford the corresponding bromination, nitration, nitrosation, and chlorination products. The reactions usually occur at the C2 and C4 positions of the metallacycle. These observations support the notion that metallabenzynes exhibit aromatic properties.
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Affiliation(s)
- Wai Yiu Hung
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong
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35
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Chen J, Sung HHY, Williams ID, Lin Z, Jia G. Synthesis and Characterization of a Rhenabenzyne Complex. Angew Chem Int Ed Engl 2011. [DOI: 10.1002/ange.201104587] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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36
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Chen J, Sung HHY, Williams ID, Lin Z, Jia G. Synthesis and Characterization of a Rhenabenzyne Complex. Angew Chem Int Ed Engl 2011; 50:10675-8. [DOI: 10.1002/anie.201104587] [Citation(s) in RCA: 68] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2011] [Indexed: 11/10/2022]
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37
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Chen J, Shi C, Sung HHY, Williams ID, Lin Z, Jia G. Conversion of Metallabenzynes into Carbene Complexes. Angew Chem Int Ed Engl 2011. [DOI: 10.1002/ange.201101844] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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38
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Chen J, Shi C, Sung HHY, Williams ID, Lin Z, Jia G. Conversion of Metallabenzynes into Carbene Complexes. Angew Chem Int Ed Engl 2011; 50:7295-9. [DOI: 10.1002/anie.201101844] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2011] [Revised: 04/28/2011] [Indexed: 11/06/2022]
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Lin R, Zhang H, Li S, Wang J, Xia H. New highly stable metallabenzenes via nucleophilic aromatic substitution reaction. Chemistry 2011; 17:4223-31. [PMID: 21360601 DOI: 10.1002/chem.201003566] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2010] [Indexed: 11/05/2022]
Abstract
Treatment of the ruthenabenzene [Ru{CHC(PPh(3))CHC(PPh(3))CH}Cl(2)(PPh(3))(2)]Cl (1) with excess 8-hydroxyquinoline in the presence of CH(3)COONa under air atmosphere produced the S(N)Ar product [(C(9) H(6)NO)Ru{CHC(PPh(3))CHC(PPh(3))C}(C(9)H(6)NO)(PPh(3))]Cl(2) (3). Ruthenabenzene 3 could be stable in the solution of weak alkali or weak acid. However, reaction of 3 with NaOH afforded a 7:1 mixture of ruthenabenzenes [(C(9)H(6)NO)Ru{CHC(PPh(3))CHCHC}(C(9)H(6)NO)(PPh(3))]Cl (4) and [(C(9)H(6)NO)Ru{CHCHCHC(PPh(3))C}(C(9)H(6)NO)(PPh(3))]Cl (5), presumably involving a P-C bond cleavage of the metallacycle. Complex 3 was also reactive to HCl, which results in a transformation of 3 to ruthenabenzene [Ru{CHC(PPh(3))CHC(PPh(3))C}Cl(2)(C(9)H(6)NO)(PPh(3))]Cl (6) in high yield. Thermal stability tests showed that ruthenabenzenes 4, 5, and 6 have remarkable thermal stability both in solid state and in solution under air atmosphere. Ruthenabenzenes 4 and 5 were found to be fluorescent in common solvents and have spectral behaviors comparable to those organic multicyclic compounds containing large π-extended systems.
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Affiliation(s)
- Ran Lin
- State Key Laboratory for Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, PR China
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40
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Zhao Q, Gong L, Xu C, Zhu J, He X, Xia H. Stable Iso-osmabenzenes from a Formal [3+3] Cycloaddition Reaction of Metal Vinylidene with Alkynols. Angew Chem Int Ed Engl 2011; 50:1354-8. [DOI: 10.1002/anie.201006442] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2010] [Indexed: 11/10/2022]
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41
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Zhao Q, Gong L, Xu C, Zhu J, He X, Xia H. Stable Iso-osmabenzenes from a Formal [3+3] Cycloaddition Reaction of Metal Vinylidene with Alkynols. Angew Chem Int Ed Engl 2011. [DOI: 10.1002/ange.201006442] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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42
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Shi C, Guo T, Poon KC, Lin Z, Jia G. Theoretical study on the rearrangement of metallabenzenes to cyclopentadienyl complexes. Dalton Trans 2011; 40:11315-20. [DOI: 10.1039/c1dt10535c] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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