1
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Chapple DE, Hoffer MA, Boyle PD, Blacquiere JM. Alkyne Hydrofunctionalization Mechanism Including an Off-Cycle Alkoxycarbene Deactivation Complex. Organometallics 2022. [DOI: 10.1021/acs.organomet.2c00170] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Devon E. Chapple
- Department of Chemistry, Western University, 1151 Richmond Street, London, Ontario, Canada N6A 3K7
| | - Megan A. Hoffer
- Department of Chemistry, Western University, 1151 Richmond Street, London, Ontario, Canada N6A 3K7
| | - Paul D. Boyle
- Department of Chemistry, Western University, 1151 Richmond Street, London, Ontario, Canada N6A 3K7
| | - Johanna M. Blacquiere
- Department of Chemistry, Western University, 1151 Richmond Street, London, Ontario, Canada N6A 3K7
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2
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Tse SKS, Sung HHY, Williams ID, Jia G. Vinylidene, allenylidene, cyclic oxycarbene, and η 2-alkyne complexes from reactions of (η 5-C 5Me 5)OsCl(PPh 3) 2 with alkynes and alkynols. CAN J CHEM 2021. [DOI: 10.1139/cjc-2020-0320] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Reactions of Cp*OsCl(PPh3)2 (Cp* = pentamethylcyclopentadienyl) with alkynes and alkynols are described. Treatment of Cp*OsCl(PPh3)2 with phenylacetylene and trimethylsilylacetylene gave the vinylidene complexes Cp*OsCl(=C=CHPh)(PPh3) and Cp*OsCl(=C=CH2)(PPh3), respectively. Treatment of Cp*OsCl(PPh3)2 with the internal alkyne dimethyl acetylenedicarboxylate produced the η2-alkyne complex Cp*OsCl(η2-MeO2C≡CCO2Me)(PPh3). Treatment of Cp*OsCl(PPh3)2 with the propargylic alcohol HC≡CC(OH)Ph2 gave the osmium allenylidene complex Cp*OsCl(=C = C=CPh2)(PPh3). The outcomes of the reactions of Cp*OsCl(PPh3)2 with ω-alkynols HC≡C(CH2)nOH are dependent on the length of the -(CH2)n- linker. The reaction with 3-butyn-1-ol produced the cyclic oxycarbene complex Cp*OsCl{=C(CH2)3O}(PPh3) exclusively. The reactions with 4-pentyn-1-ol produced a mixture of the hydroxyalkyl vinylidene complex Cp*OsCl{=C=CH(CH2)3OH}(PPh3) and the cyclic oxycarbene complex Cp*OsCl{=C(CH2)4O}(PPh3) in about 10:1 molar ratio. The reaction with 5-hexyn-1-ol gave exclusively the hydroxyalkyl vinylidene complex Cp*OsCl{=C=CH(CH2)4OH}(PPh3).
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Affiliation(s)
- Sunny Kai San Tse
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong
| | - Herman Ho-Yung Sung
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong
| | - Ian Duncan Williams
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong
- 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
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong
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3
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Chung LH, Yeung CF, Wong CY. Ruthenium-Induced Cyclization of Heteroatom-Functionalized Alkynes: Progress, Challenges and Perspectives. Chemistry 2020; 26:6102-6112. [PMID: 31943425 DOI: 10.1002/chem.201905506] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2019] [Indexed: 01/05/2023]
Abstract
Metal-induced cyclization of functionalized alkynes represents one of the most general approaches to prepare organic heterocycles. Although RuII centers are well-established to promote alkyne to vinylidene rearrangements and many RuII -mediated alkyne cyclizations have been rationalized to be the results of post-vinylidene transformations, recent discoveries indicate that RuII centers can serve as electrophiles and induce alkyne cyclizations without vinylidene intermediacy. In this Minireview, an overview of the RuII -induced cyclization of heteroatom-functionalized alkynes in the last decade is provided, with an emphasis on the discoveries and validations of the unconventional "non-vinylidene-involving" pathways.
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Affiliation(s)
- Lai-Hon Chung
- Department of Chemistry, City University of Hong Kong, Tat Chee Avenue, Hong Kong, SAR, P. R. China
| | - Chi-Fung Yeung
- Department of Chemistry, City University of Hong Kong, Tat Chee Avenue, Hong Kong, SAR, P. R. China.,State Key Laboratory of Terahertz and Millimeter Waves, Tat Chee Avenue, Hong Kong, SAR, P. R. China
| | - Chun-Yuen Wong
- Department of Chemistry, City University of Hong Kong, Tat Chee Avenue, Hong Kong, SAR, P. R. China.,State Key Laboratory of Terahertz and Millimeter Waves, Tat Chee Avenue, Hong Kong, SAR, P. R. China
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4
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El-Tarhuni S, Manhães LM, Morrill C, Raftery J, Randhawa JK, Whiteley MW. Synthesis of cyclopentadienyl iron alkoxycarbene complexes via vinylidene intermediates: X-ray structures of [Fe{C(OMe)Me}(dppe)Cp][I] and [Fe{C(CH2)3O}(dppe)Cp][PF6]. J Organomet Chem 2016. [DOI: 10.1016/j.jorganchem.2016.03.008] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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5
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Li T, Fu C, Liu Z, Guo S, Liu Z, Wen TB. Half-Sandwich B-Oxy Boratabenzene Ruthenium Complexes: Synthesis, Characterization, and Reactivity of (η6-C5H5BOR)RuCl(PPh3)2 (R = Et, Me). Organometallics 2015. [DOI: 10.1021/acs.organomet.5b00319] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Ting Li
- Department of Chemistry,
College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, P.R. China
| | - Chen Fu
- Department of Chemistry,
College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, P.R. China
| | - Zi Liu
- Department of Chemistry,
College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, P.R. China
| | - Shuiliang Guo
- Department of Chemistry,
College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, P.R. China
| | - Zicheng Liu
- Department of Chemistry,
College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, P.R. China
| | - Ting-Bin Wen
- Department of Chemistry,
College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, P.R. China
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6
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Singh VK, Puerta MC, Valerga P. Differential Reactivity of [TpRu(κ
2
P
,
N
‐
i
Pr
2
PXPy)Cl] (X = NH, S) Bearing Hemilabile Coligands Towards NaBAr
F
4
, Lithium Acetylide, and Acetylenes. Eur J Inorg Chem 2015. [DOI: 10.1002/ejic.201500082] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Vinay K. Singh
- Department of Chemistry, Faculty of Science, The M. S. University of Baroda, Vadodara‐390002 (Guj.), India
| | - M. Carmen Puerta
- Departamento de Ciencia de los Materiales e Ingeniería Metalúrgica y Química Inorgánica‐INBIO, Facultad de Ciencias, Universidad de Cádiz, 11510 Puerto Real, Cádiz, Spain
| | - Pedro Valerga
- Departamento de Ciencia de los Materiales e Ingeniería Metalúrgica y Química Inorgánica‐INBIO, Facultad de Ciencias, Universidad de Cádiz, 11510 Puerto Real, Cádiz, Spain
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7
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8
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Welby CE, Eschemann TO, Unsworth CA, Smith EJ, Thatcher RJ, Whitwood AC, Lynam JM. Ruthenium Acetate Complexes as Versatile Probes of Metal-Ligand Interactions: Insight into the Ligand Effects of Vinylidene, Carbene, Carbonyl, Nitrosyl and Isocyanide. Eur J Inorg Chem 2011. [DOI: 10.1002/ejic.201100931] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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9
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Chen CC, Cheng PC, Huang SL, Lin YC, Liu YH. Reactions of ruthenium-allenylidene complexes tethering a cyclopropyl group. Chem Asian J 2011; 6:3122-31. [PMID: 21853534 DOI: 10.1002/asia.201100297] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2011] [Indexed: 11/06/2022]
Abstract
Two cyclopropyl allenylidene complexes [Ru]=C=C=C(R)(C(3)H(5)) ([Ru]=[RuCp(PPh(3))(2)], Cp=Cyclopentadienyl; R=thiophene (2a) and R=Ph (2b)) are prepared from the reactions of [Ru]Cl with the corresponding 1-cyclopropyl-2-propyn-1-ol in the presence of KPF(6). Thermal treatment, halide-anion addition, and palladium-catalyzed reactions of 2a and 2b all lead to a ring expansion of the cyclopropyl group, giving the vinylidene complexes 4a and 4b, respectively, each with a five-membered ring. This ring expansion proceeds by C-C bond formation between Cβ of the cumulative double bond and a methylene group of the cyclopropyl ring. In the reaction of 2a with pyrrole, consecutive formation of two C-C bonds, one between C-2 of pyrrole and Cγ of 2a and the other between C-3 of pyrrole and Cα, results in the formation of 6a. The reaction proceeds by addition of pyrrole and 1,3-proton shifts. The hydrogenation of 2a by NaBH(4) is carried out in different solvents. The cumulative double bonds are reduced regioselectively to give a mixture of 7a and 8a. Interestingly, use of different solvents leads to different ratios of 7a and 8a. Presence of a protic solvent like methanol in dichloromethane or chloroform solution increases the yield of 8a, thus revealing that both the rates of hydroboration and deboronation increase. The structures of two new complexes 4a and 6a have been firmly established by X-ray diffraction analysis.
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Affiliation(s)
- Chien-Chih Chen
- Department of Chemistry, National Taiwan University, Taipei, 106, Taiwan
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10
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Varela-Fernández A, González-Rodríguez C, Varela JA, Castedo L, Saá C. Cycloisomerization of Aromatic Homo- and Bis-homopropargylic Alcohols via Catalytic Ru Vinylidenes: Formation of Benzofurans and Isochromenes. Org Lett 2009; 11:5350-3. [DOI: 10.1021/ol902212h] [Citation(s) in RCA: 102] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Alejandro Varela-Fernández
- Departamento de Química Orgánica, Facultad de Química, Universidad de Santiago de Compostela, 15782 Santiago de Compostela, Spain
| | - Carlos González-Rodríguez
- Departamento de Química Orgánica, Facultad de Química, Universidad de Santiago de Compostela, 15782 Santiago de Compostela, Spain
| | - Jesús A. Varela
- Departamento de Química Orgánica, Facultad de Química, Universidad de Santiago de Compostela, 15782 Santiago de Compostela, Spain
| | - Luis Castedo
- Departamento de Química Orgánica, Facultad de Química, Universidad de Santiago de Compostela, 15782 Santiago de Compostela, Spain
| | - Carlos Saá
- Departamento de Química Orgánica, Facultad de Química, Universidad de Santiago de Compostela, 15782 Santiago de Compostela, Spain
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11
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Öfele K, Tosh E, Taubmann C, Herrmann WA. Carbocyclic Carbene Metal Complexes. Chem Rev 2009; 109:3408-44. [DOI: 10.1021/cr800516g] [Citation(s) in RCA: 109] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- K. Öfele
- TU München, Chemie, Lichtenbergstr. 4, Garching D-85747, Germany
| | - E. Tosh
- TU München, Chemie, Lichtenbergstr. 4, Garching D-85747, Germany
| | - C. Taubmann
- TU München, Chemie, Lichtenbergstr. 4, Garching D-85747, Germany
| | - W. A. Herrmann
- TU München, Chemie, Lichtenbergstr. 4, Garching D-85747, Germany
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12
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Grime RW, Helliwell M, Hussain ZI, Lancashire HN, Mason CR, McDouall JJW, Mydlowski CM, Whiteley MW. Metallacumulenylidene Complexes in the Cycloheptatrienyl Molybdenum Series [Mo{(C)n═CR2}L2(η-C7H7)]+ (n = 0−2; L2 = P-Donor Ligand). X-ray Crystal Structures of [Mo{C═C(H)Ph}{P(OMe)3}2(η-C7H7)][BF4] and [Mo(C═C═CPh2)(dppe)(η-C7H7)][PF6] and DFT Investigation of Cumulenylidene Ligand Orientations. Organometallics 2008. [DOI: 10.1021/om700920t] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Richard W. Grime
- School of Chemistry, University of Manchester, Manchester M13 9PL, U.K
| | | | - Zaffar I. Hussain
- School of Chemistry, University of Manchester, Manchester M13 9PL, U.K
| | | | | | | | | | - Mark W. Whiteley
- School of Chemistry, University of Manchester, Manchester M13 9PL, U.K
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13
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Trost BM, Frederiksen MU, Rudd MT. Ruthenium-catalyzed reactions--a treasure trove of atom-economic transformations. Angew Chem Int Ed Engl 2006; 44:6630-66. [PMID: 16206300 DOI: 10.1002/anie.200500136] [Citation(s) in RCA: 452] [Impact Index Per Article: 25.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
The demand for new chemicals spanning the fields of health care to materials science combined with the pressure to produce these substances in an environmentally benign fashion pose great challenges to the synthetic chemical community. The maximization of synthetic efficiency by the conversion of simple building blocks into complex targets remains a fundamental goal. In this context, ruthenium complexes catalyze a number of non-metathesis conversions and allow the rapid assembly of complex molecules with high selectivity and atom economy. These complexes often exhibit unusual reactivity. Careful consideration of the mechanistic underpinnings of the transformations can lead to the design of new reactions and the discovery of new reactivity.
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Affiliation(s)
- Barry M Trost
- Department of Chemistry, Stanford University, Stanford, CA 94305-5080, USA.
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14
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Pavlik S, Mereiter K, Puchberger M, Kirchner K. Reaction of the RuTp(PR3)Cl fragment with alkynols: Formation of carbene, vinylidene, allenylidene, and carbyne complexes. J Organomet Chem 2005. [DOI: 10.1016/j.jorganchem.2005.04.035] [Citation(s) in RCA: 37] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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15
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Trost BM, Frederiksen MU, Rudd MT. Ruthenium-katalysierte Reaktionen - eine Schatzkiste für atomökonomische Umwandlungen. Angew Chem Int Ed Engl 2005. [DOI: 10.1002/ange.200500136] [Citation(s) in RCA: 132] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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16
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Wipf P, Graham TH. Photoactivated Tungsten Hexacarbonyl-Catalyzed Conversion of Alkynols to Glycals. J Org Chem 2003; 68:8798-807. [PMID: 14604347 DOI: 10.1021/jo034813s] [Citation(s) in RCA: 72] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The photoactivated W(CO)(6)/DABCO/THF system has been used for the formal endo-cyclization of alkynes to pyran rings. We found that the regioselectivity of ring closure depends on the relative configuration of the 3,5-dihydroxy-1-alkynes, as well as, more decisively, on the type of O-protective group. Oxygen substitution at the propargylic carbon slows the rate of alkyne insertion and allows for dihydrofuran formation through exo-cyclization. In contrast, the use of bulky silyl ethers or carbon substituents leads to dihydropyrans through endo-cyclization. Substrates bearing leaving groups such as esters, phenols, or thiophenols at the propargylic site eliminate and thus represent a limitation to the cycloisomerization methodology. Propargyl vinyl ethers will rearrange to give dienals instead of glycals. 1,2-Wittig rearrangement products of dihydropyrans are readily prepared and converted to complex bicyclic building blocks for organic synthesis.
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Affiliation(s)
- Peter Wipf
- Department of Chemistry, University of Pittsburgh, Pittsburgh, PA 15260, USA. pwipf+@pitt.edu
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17
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Keller A, Jasionka B, Głowiak T, Ershov A, Matusiak R. Cyclic oxycarbene and vinylidene complexes of ruthenium with (PP) and (NN) type ligands. Inorganica Chim Acta 2003. [DOI: 10.1016/s0020-1693(02)01313-0] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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18
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Peruzzini M, Akbayeva D, Bianchini C, de los Rios I, Ienco A, Mantovani N, Marvelli L, Rossi R. Synthesis and chemistry of 2-oxacyclocarbene and 2-cyclovinyl ether ligands supported by the [{MeC(CH2PPh2)3}Re(CO)2]+ auxiliary. Inorganica Chim Acta 2002. [DOI: 10.1016/s0020-1693(02)00931-3] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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19
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Synthesis and characterization of 2-oxacycloalkylideneruthenium(II) complexes: X-ray crystal structure of the 2-oxacycloheptylidene complex [Ru{H2}(η5-C9H7)(PPh3)2][PF6]·CH2Cl2. J Organomet Chem 2002. [DOI: 10.1016/s0022-328x(02)01216-0] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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20
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Sheng Y, Musaev DG, Reddy KS, McDonald FE, Morokuma K. Computational studies of tungsten-catalyzed endo-selective cycloisomerization of 4-pentyn-1-ol. J Am Chem Soc 2002; 124:4149-57. [PMID: 11942854 DOI: 10.1021/ja017668d] [Citation(s) in RCA: 52] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Endo- and exo-cycloisomerizations of 4-pentyn-1-ol have been studied computationally with density functional theory, in conjunction with double-zeta and triple-zeta basis sets, both in the absence and in the presence of tungsten carbonyl catalyst. In the absence of the catalyst, both endo- and exo-cycloisomerizations have been calculated to have a very high activation barrier of approximately 50-55 kcal/mol and cannot take place. With tungsten pentacarbonyl catalyst, endo-cycloisomerization becomes a complex multiple-step reaction and proceeds with a rate-determining barrier of 26 kcal/mol at the C(alpha) --> C(beta) hydride migration step to form a vinylidene intermediate. The primary role of the tungsten catalyst is to stabilize the vinylidene intermediate, thus lowering the rate-determining barrier. The second important role of the tungsten catalyst in endo-cycloisomerization is to assist the OH hydride migration to C(alpha) by making it a multistep process with small activation barriers. The exo-cycloisomerization with the catalyst still has a high rate-determining barrier of 47 kcal/mol. These findings clearly explain the experimentally observed endo-selectivity in the cycloisomerization of 4-pentyn-1-ol derivatives and support the experimentally proposed mechanism.
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Affiliation(s)
- Yinghong Sheng
- Cherry L. Emerson Center for Scientific Computation and Department of Chemistry, Emory University, Atlanta, Georgia 30322, USA
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21
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Trost BM, Rhee YH. A Ru catalyzed divergence: oxidative cyclization vs cycloisomerization of bis-homopropargylic alcohols. J Am Chem Soc 2002; 124:2528-33. [PMID: 11890802 DOI: 10.1021/ja011840w] [Citation(s) in RCA: 162] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
During the course of investigating the development of catalytic reactions involving ruthenium vinylidene intermediates, a novel divergence of reactivity was discovered. The oxidative cyclization of bis-homopropargylic alcohols with Ru(+2) complexes as catalysts and N-hydroxysuccinimide as oxidant, which requires formation of a ruthenium vinylidene intermediate, is complicated by the simple electrophilically initiated direct attack of the hydroxyl group on a pi-complex of the alkyne and ruthenium. A catalytic system composed of CpRu[(p-CH(3)O(6)H(4))(3)P](2)Cl and excess (p-CH(3)O-C(6)H(4))(3)P directs the reaction toward the oxidative cyclization to form delta-lactones in good yields. Significantly, a simple switch of catalyst to CpRu[(p-FC(6)H(4))(3)P](2)Cl redirects the reaction to a cycloisomerization to form dihydropyrans in good yields. The synthetic utility of the oxidative cyclization is illustrated by the synthesis of oviposition attractant pheromone of the mosquito Culex pipens. The utility of the cycloisomerization to dihydropyrans is demonstrated by an iterative process leading to the antiviral agent narbosine B. A rationale for this dramatic switch by simple ligand modification is proposed.
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Affiliation(s)
- Barry M Trost
- Department of Chemistry, Stanford University, Stanford, CA 94305-5080, USA
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22
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Hansen HD, Nelson JH. Novel Ruthenium(II) Carbene Complexes: Products of the Reactions of 1-Alkynes with (η6-C6Me6)Cl2Ru(PR3). Organometallics 2000. [DOI: 10.1021/om0004949] [Citation(s) in RCA: 77] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Heather D. Hansen
- Department of Chemistry/216, University of NevadaReno, Reno, Nevada 89557-0020
| | - John H. Nelson
- Department of Chemistry/216, University of NevadaReno, Reno, Nevada 89557-0020
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23
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Chang CW, Lin YC, Lee GH, Wang Y. Reactions of Ruthenium Cyclopropenyl Complexes Containing Pentamethylcyclopentadienyl Ligands. Organometallics 2000. [DOI: 10.1021/om000094l] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Chao-Wan Chang
- National Overseas Chinese Student University Preparation School, Linkou, Taipei Hsien, Taiwan, Republic of China, and Department of Chemistry, National Taiwan University, Taipei, Taiwan 106, Republic of China
| | - Ying-Chih Lin
- National Overseas Chinese Student University Preparation School, Linkou, Taipei Hsien, Taiwan, Republic of China, and Department of Chemistry, National Taiwan University, Taipei, Taiwan 106, Republic of China
| | - Gene-Hsiang Lee
- National Overseas Chinese Student University Preparation School, Linkou, Taipei Hsien, Taiwan, Republic of China, and Department of Chemistry, National Taiwan University, Taipei, Taiwan 106, Republic of China
| | - Yu Wang
- National Overseas Chinese Student University Preparation School, Linkou, Taipei Hsien, Taiwan, Republic of China, and Department of Chemistry, National Taiwan University, Taipei, Taiwan 106, Republic of China
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24
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Trost BM, Rhee YH. Ruthenium-Catalyzed Cycloisomerization−Oxidation of Homopropargyl Alcohols. A New Access to γ-Butyrolactones. J Am Chem Soc 1999. [DOI: 10.1021/ja992013m] [Citation(s) in RCA: 112] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Barry M. Trost
- Contribution from the Department of Chemistry, Stanford University, Stanford, California 94305-5080
| | - Young H. Rhee
- Contribution from the Department of Chemistry, Stanford University, Stanford, California 94305-5080
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25
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26
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Dötz KH, Paetsch D, Le Bozec H. Organotransition metal modified sugars 14. Activation of sugar-based alkynols at a metal carbonyl template: a metal vinyl carbene functionalization of carbohydrates and non-conventional route to organometallic disaccharides. J Organomet Chem 1999. [DOI: 10.1016/s0022-328x(99)00295-8] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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27
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Moura EM, Dickman MH, Siebald HG, Gama GJ. Syntheses, characterization and structure determination of {[CpRu(X)]2(η2,μ2-dppe)2} complexes (X=Cl, N3; dppe=Ph2PCH2CH2PPh2). Polyhedron 1999. [DOI: 10.1016/s0277-5387(99)00209-0] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Bowman JL, McDonald FE. A Reiterative Synthesis of Trans-Fused Polypyrans via Tungsten Pentacarbonyl-Promoted Alkynol Endocyclization. J Org Chem 1998. [DOI: 10.1021/jo980058k] [Citation(s) in RCA: 44] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jason L. Bowman
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208-3113
| | - Frank E. McDonald
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208-3113
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Liang KW, Li WT, Peng SM, Wang SL, Liu RS. Tungsten(II)−Carbene Complex Functions as a Dicationic Synthon: Efficient Constructions of Furan and Pyran Frameworks from Readily Available α,δ- and α,ε-Alkynols. J Am Chem Soc 1997. [DOI: 10.1021/ja970020+] [Citation(s) in RCA: 49] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Barthel-Rosa LP, Maitra K, Fischer J, Nelson JH. Hemilabile Properties of the η3-Diphenylvinylphosphine (DPVP) Phosphaallyl Ligand: Synthesis and Reactions of [(η5-C5Me5)Ru(η3-DPVP)(η1-DPVP)]PF6. Organometallics 1997. [DOI: 10.1021/om961068j] [Citation(s) in RCA: 38] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Luis P. Barthel-Rosa
- Department of Chemistry/216, University of NevadaReno, Reno, Nevada 89557-0020, and Laboratoire de Cristallochimie (URA 424 du CNRS), Université Louis Pasteur, 4 rue Blaise Pascal, F-67070 Strasbourg Cedex, France
| | - Kalyani Maitra
- Department of Chemistry/216, University of NevadaReno, Reno, Nevada 89557-0020, and Laboratoire de Cristallochimie (URA 424 du CNRS), Université Louis Pasteur, 4 rue Blaise Pascal, F-67070 Strasbourg Cedex, France
| | - Jean Fischer
- Department of Chemistry/216, University of NevadaReno, Reno, Nevada 89557-0020, and Laboratoire de Cristallochimie (URA 424 du CNRS), Université Louis Pasteur, 4 rue Blaise Pascal, F-67070 Strasbourg Cedex, France
| | - John H. Nelson
- Department of Chemistry/216, University of NevadaReno, Reno, Nevada 89557-0020, and Laboratoire de Cristallochimie (URA 424 du CNRS), Université Louis Pasteur, 4 rue Blaise Pascal, F-67070 Strasbourg Cedex, France
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Beddoes RL, Grime RW, Hussain ZI, Whiteley MW. Synthesis and X-ray crystal structures of the cyclic oxacarbene complexes (n = 1 or 2): boat conformation of the 2-oxacyclohexylidene ligand. J Organomet Chem 1996. [DOI: 10.1016/s0022-328x(96)06585-0] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Ting PC, Lin YC, Lee GH, Cheng MC, Wang Y. Cyclopropenation and Related Reactions of Ruthenium Vinylidene Complexes. J Am Chem Soc 1996. [DOI: 10.1021/ja960001k] [Citation(s) in RCA: 62] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Pei-Chen Ting
- Contribution from the Department of Chemistry, National Taiwan University, Taipei, Taiwan 106, Republic of China
| | - Ying-Chih Lin
- Contribution from the Department of Chemistry, National Taiwan University, Taipei, Taiwan 106, Republic of China
| | - Gene-Hsiang Lee
- Contribution from the Department of Chemistry, National Taiwan University, Taipei, Taiwan 106, Republic of China
| | - Ming-Chu Cheng
- Contribution from the Department of Chemistry, National Taiwan University, Taipei, Taiwan 106, Republic of China
| | - Yu Wang
- Contribution from the Department of Chemistry, National Taiwan University, Taipei, Taiwan 106, Republic of China
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McDonald FE, Bowman JL. Tungsten carbonyl-induced cyclizations of alkynyl alcohols to dihydropyranylidene carbenes and α-stannyl dihydropyrans. Tetrahedron Lett 1996. [DOI: 10.1016/0040-4039(96)00961-6] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Beddoes RL, Grime RW, Hussain ZI, Whiteley MW. Cyclic oxacarbene complexes of the cycloheptatrienylmolybdenum auxiliary MoL2(η-C7H7), L = CO or P-donor ligand: isolation and subsequent cyclisation of a hydroxyvinylidene intermediate. ACTA ACUST UNITED AC 1996. [DOI: 10.1039/dt9960003893] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Stang PJ, Huang YH. Reactivity studies of square planar platinum, iridium, and rhodium triflate complexes with alkynols. J Organomet Chem 1992. [DOI: 10.1016/0022-328x(92)80122-e] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Werner H, Knaup W, Schulz M. (Benzol)osmium(II)-Komplexe mit cyclischen Oxycarben- und Vinylether-Liganden. ACTA ACUST UNITED AC 1991. [DOI: 10.1002/cber.19911240521] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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38
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Chemistry of the Cyciopentadienyl Bisphosphine Ruthenium Auxiliary. ADVANCES IN ORGANOMETALLIC CHEMISTRY 1990. [DOI: 10.1016/s0065-3055(08)60498-0] [Citation(s) in RCA: 165] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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Silvestre J, Hoffmann R. Hydrogen Migration in Transition Metal Alkyne and Related Complexes. Helv Chim Acta 1985. [DOI: 10.1002/hlca.19850680602] [Citation(s) in RCA: 190] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Bruce MI, Neil Duffy D, Humphrey MG, Swincer A. Cyclopentadienyl-ruthenium and -osmium chemistry. J Organomet Chem 1985. [DOI: 10.1016/0022-328x(85)87197-7] [Citation(s) in RCA: 34] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Bruce MI, Swincer AG. Vinylidene and Propadienylidene (Allenylidene) Metal Complexes. ADVANCES IN ORGANOMETALLIC CHEMISTRY 1983. [DOI: 10.1016/s0065-3055(08)60401-3] [Citation(s) in RCA: 332] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
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