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Trifonova EA, Ankudinov NM, Kozlov MV, Sharipov MY, Nelyubina YV, Perekalin DS. Rhodium(III) Complex with a Bulky Cyclopentadienyl Ligand as a Catalyst for Regioselective Synthesis of Dihydroisoquinolones through C−H Activation of Arylhydroxamic Acids. Chemistry 2018; 24:16570-16575. [DOI: 10.1002/chem.201804050] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2018] [Indexed: 01/02/2023]
Affiliation(s)
- Evgeniya A. Trifonova
- Nesmeyanov Institute of Organoelement Compounds; Russian Academy of Sciences; Vavilova 28 Moscow 119991 Russia
| | - Nikita M. Ankudinov
- Nesmeyanov Institute of Organoelement Compounds; Russian Academy of Sciences; Vavilova 28 Moscow 119991 Russia
| | - Maxim V. Kozlov
- Engelhardt Institute of Molecular Biology; Russian Academy of Sciences; Vavilova 32 Moscow 119991 Russia
| | - Mikhail Y. Sharipov
- Mendeleev University of Chemical Technology of Russia; Miusskaya sq. 9 Moscow 125047 Russia
- Kurnakov Institute of General and Inorganic Chemistry; Russian Academy of Sciences; Leninsky prospect 31 Moscow 119991 Russia
| | - Yulia V. Nelyubina
- Nesmeyanov Institute of Organoelement Compounds; Russian Academy of Sciences; Vavilova 28 Moscow 119991 Russia
| | - Dmitry S. Perekalin
- Nesmeyanov Institute of Organoelement Compounds; Russian Academy of Sciences; Vavilova 28 Moscow 119991 Russia
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Melcher MC, Rolim Alves da Silva B, Ivšić T, Strand D. Chiral Discrimination in Rhodium(I) Catalysis by 2,5-Disubstituted 1,3 a,4,6 a-Tetrahydropenatalene Ligands-More Than Just a Twist of the Olefins? ACS OMEGA 2018; 3:3622-3630. [PMID: 31458613 PMCID: PMC6641409 DOI: 10.1021/acsomega.8b00127] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/22/2018] [Accepted: 03/09/2018] [Indexed: 05/15/2023]
Abstract
Chiral dienes are useful ligands in a number of asymmetric transition-metal-catalyzed reactions. Here, we evaluate the efficiency of 2,5-disubstituted 1,3a,4,6a-tetrahydropentalenes as ligands to rhodium(I). 2,5-Dibenzyl and diphenyl tetrahydropentalenes were synthesized in two steps and resolved, either chromatographically, or through fractional crystallization of diastereomeric rhodium(I) salts. When evaluated in a 1,4-arylation reaction, the 2,5-dibenzyl ligand gave up to 99% ee. The use of a well-defined rhodium complex as catalyst, Cs2CO3 as the base, and toluene/water as solvent was found to have a pronounced beneficial effect on the selectivity of the reaction. The homologous 2,5-diphenyl ligand on the other hand proved to be highly prone to racemization/loss of chirality during catalysis. Control experiments reveal that this rearrangement proceeds via a rhodium-mediated 1,3-hydride shift. Implications for ligand design and catalysis are discussed.
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Ali A, Malan FP, Singleton E, Meijboom R. Fulvene–Ruthenium and Cp–Ruthenium Complexes via [2 + 2 + 1] Cyclotrimerization of Phenylacetylene with [RuCl(Tp)(1,5-cod)]. Organometallics 2014. [DOI: 10.1021/om500432w] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Afsar Ali
- Department of Chemistry, University of Johannesburg, PO Box 524, Auckland Park, 2006, Johannesburg, South Africa
| | - Frederick P. Malan
- Department of Chemistry, University of Johannesburg, PO Box 524, Auckland Park, 2006, Johannesburg, South Africa
| | - Eric Singleton
- Department of Chemistry, University of Johannesburg, PO Box 524, Auckland Park, 2006, Johannesburg, South Africa
| | - Reinout Meijboom
- Department of Chemistry, University of Johannesburg, PO Box 524, Auckland Park, 2006, Johannesburg, South Africa
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Sravani C, Venkatesh S, Vijayakrishna K, Sivaramakrishna A. Alkenyl complexes of platinum group metals: a platform for diverse reactivity patterns. Appl Organomet Chem 2014. [DOI: 10.1002/aoc.3179] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Chinduluri Sravani
- Chemistry Division, School of Advanced Sciences; VIT University; Vellore 632 014 Tamil Nadu India
| | - Sadhana Venkatesh
- Chemistry Division, School of Advanced Sciences; VIT University; Vellore 632 014 Tamil Nadu India
| | - Kari Vijayakrishna
- Chemistry Division, School of Advanced Sciences; VIT University; Vellore 632 014 Tamil Nadu India
| | - Akella Sivaramakrishna
- Chemistry Division, School of Advanced Sciences; VIT University; Vellore 632 014 Tamil Nadu India
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7
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Zhang J, Quan Y, Lin Z, Xie Z. Insight into Reaction Mechanism of [2 + 2 + 1] Cross-Cyclotrimerization of Carboryne with Alkene and Trimethylsilylarylalkyne Mediated by Nickel Complex. Organometallics 2014. [DOI: 10.1021/om5004545] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Jiji Zhang
- Department of Chemistry, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong, People’s Republic of China
| | - Yangjian Quan
- Department of Chemistry, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong, People’s Republic of China
| | - Zhenyang Lin
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, People’s Republic of China
| | - Zuowei Xie
- Department of Chemistry, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong, People’s Republic of China
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Quan Y, Zhang J, Xie Z. Three-Component [2+2+1] Cross-cyclotrimerization of Carboryne, Unactivated Alkene, and Trimethylsilylalkyne Co-mediated by Zr and Ni. J Am Chem Soc 2013; 135:18742-5. [DOI: 10.1021/ja410233e] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Yangjian Quan
- Department of Chemistry and State
Key Laboratory of Synthetic Chemistry, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong, China
| | - Jiji Zhang
- Department of Chemistry and State
Key Laboratory of Synthetic Chemistry, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong, China
| | - Zuowei Xie
- Department of Chemistry and State
Key Laboratory of Synthetic Chemistry, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong, China
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Kelley MR, Rohde JU. Guanidinato Complexes of Iridium: Ligand-Donor Strength, O2 Reactivity, and (Alkene)peroxoiridium(III) Intermediates. Inorg Chem 2013; 52:2564-80. [DOI: 10.1021/ic302570s] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Matthew R. Kelley
- Department of Chemistry, The University of Iowa, Iowa City, Iowa 52242, United
States
| | - Jan-Uwe Rohde
- Department of Chemistry, The University of Iowa, Iowa City, Iowa 52242, United
States
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Kiefer G, Dutta B, Solari E, Scopelliti R, Severin K. RhCl3-Mediated Coupling Reactions of tert-Butyl Acetylene. Z Anorg Allg Chem 2012. [DOI: 10.1002/zaac.201100537] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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11
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Shibata Y, Tanaka K. Catalytic [2+2+1] Cross-Cyclotrimerization of Silylacetylenes and Two Alkynyl Esters To Produce Substituted Silylfulvenes. Angew Chem Int Ed Engl 2011. [DOI: 10.1002/ange.201105517] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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12
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Shibata Y, Tanaka K. Catalytic [2+2+1] cross-cyclotrimerization of silylacetylenes and two alkynyl esters to produce substituted silylfulvenes. Angew Chem Int Ed Engl 2011; 50:10917-21. [PMID: 21922622 DOI: 10.1002/anie.201105517] [Citation(s) in RCA: 127] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2011] [Indexed: 11/06/2022]
Affiliation(s)
- Yu Shibata
- Department of Applied Chemistry, Graduate School of Engineering, Tokyo University of Agriculture and Technology, Koganei, Tokyo 184-8588, Japan
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Wolf R, Ghavtadze N, Weber K, Schnöckelborg EM, de Bruin B, Ehlers AW, Lammertsma K. P–C dichotomy: divergent iron(−I)-mediated alkyne and phosphaalkyne cycloligomerisations. Dalton Trans 2010; 39:1453-6. [DOI: 10.1039/b923663p] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Yasuhara Y, Nishimura T, Hayashi T. Rhodium-catalyzed aryl- and alkylation–oligomerization of alkynoates with organoboron reagents giving salicylates. Chem Commun (Camb) 2010; 46:2130-2. [DOI: 10.1039/c000402b] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Affiliation(s)
- Yuichi Yasuhara
- Department of Chemistry, Graduate School of Science, Kyoto University, Sakyo, Kyoto 606-8502, Japan
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Yan X, Lai C, Xi C. Zr-promoted linear coupling of alkynes to generate bis(allene)s. Chem Commun (Camb) 2009:6026-8. [DOI: 10.1039/b912175g] [Citation(s) in RCA: 13] [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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16
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Tejel C, Ciriano M, Passarelli V, López J, de Bruin B. Intervalent Bis(μ-aziridinato)MIIMIComplexes (M=Rh, Ir): Delocalized Metallo-Radicals or Delocalized Aminyl Radicals? Chemistry 2008; 14:10985-98. [DOI: 10.1002/chem.200801615] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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West NM, White PS, Templeton JL. Alkyne Insertion into the Pt−H Bond of Pt(H)(1-pentene)(β-diiminate) Initiates a Reaction Cascade That Results in C−H Activation or C−C Coupling. Organometallics 2008. [DOI: 10.1021/om800521x] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- Nathan M. West
- Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599-3290
| | - Peter S. White
- Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599-3290
| | - Joseph L. Templeton
- Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599-3290
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Kanno KI, Igarashi E, Zhou L, Nakajima K, Takahashi T. Selective linear triene formation from different alkynes using Zr/Cu system. J Am Chem Soc 2008; 130:5624-5. [PMID: 18393417 DOI: 10.1021/ja8000387] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Selective synthesis of linear trienes from three different alkynes was achieved in one-pot procedure using the Zr/Cu system. Zirconacyclopentadiene prepared from two different alkynes such as an alkyl-substituted alkyne and an aryl-substituted alkyne reacted with NCS gave chlorodienylzirconocene. It reacted with the third alkyne with electron-withdrawing groups in the presence of CuCl to afford the corresponding linear triene.
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Affiliation(s)
- Ken-ichiro Kanno
- Catalysis Research Center and Graduate School of Life Science, Hokkaido University, and SORST, Japan Science and Technology Agency, Kita-ku, Sapporo 001-0021, Japan
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Dutta B, Solari E, Gauthier S, Scopelliti R, Severin K. Ruthenium Half-Sandwich Complexes with Sterically Demanding Cyclopentadienyl Ligands. Organometallics 2007. [DOI: 10.1021/om700461x] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Barnali Dutta
- Institut des Sciences et Ingénierie Chimiques, École Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland
| | - Euro Solari
- Institut des Sciences et Ingénierie Chimiques, École Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland
| | - Sébastien Gauthier
- Institut des Sciences et Ingénierie Chimiques, École Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland
| | - Rosario Scopelliti
- Institut des Sciences et Ingénierie Chimiques, École Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland
| | - Kay Severin
- Institut des Sciences et Ingénierie Chimiques, École Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland
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Wen TB, Hung WY, Sung HHY, Zhou Z, Williams ID, Jia G. Coupling Reactions of an Allenylcarbene Complex with Alkynes and Styrene. Eur J Inorg Chem 2007. [DOI: 10.1002/ejic.200601251] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Hetterscheid DGH, Klop M, Kicken RJNAM, Smits JMM, Reijerse EJ, de Bruin B. Hydrogen-Atom Transfer in Open-Shell Organometallic Chemistry: The Reactivity of RhII(cod) and IrII(cod) Radicals. Chemistry 2007; 13:3386-405. [PMID: 17219454 DOI: 10.1002/chem.200600711] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
A series of new metalloradical rhodium and iridium complexes [M(II)(cod)(N-ligand)](2+) in the uncommon oxidation state +II were synthesized by one-electron oxidation of their [M(I)(cod)(N-ligand)](+) precursors (M=Rh, Ir; cod=(Z,Z)-1,5-cyclooctadiene; and N-ligand is a podal bis(pyridyl)amine ligand: N,N-bis(2-pyridylmethyl)amine (dpa), N-(2-pyridylmethyl)-N-(6-methyl-2-pyridylmethyl)amine (pla), or N-benzyl-N,N-bis(6-methyl-2-pyridylmethyl)amine (Bn-dla). EPR spectroscopy, X-ray diffraction, and DFT calculations reveal that each of these [M(II)(cod)(N-ligand)](2+) species adopts a square-pyramidal geometry with the two cod double bonds and the two pyridine fragments in the basal plane and the N(amine) donor at the apical position. The unpaired electron of these species mainly resides at the metal center, but the apical N(amine) donor also carries a considerable fraction of the total spin density (15-18 %). Density functional calculations proved a valuable tool for the analysis and simulation of the experimental EPR spectra. Whereas the M(II)(olefin) complexes are quite stable as solids, in solution they spontaneously transform into a 1:1 mixture of M(III)(allyl) species and protonated M(I)(olefin) complexes (in the forms [M(I)(olefin)(protonated N-ligand)](2+) for M=Rh and [M(III)(H)(olefin)(N-ligand)](2+) for M=Ir). Similar reactions were observed for the related propene complex [M(II)(propene)(Me(2)tpa)](2+) (Me(2)tpa=N,N,N-tris(6-methyl-2-pyridylmethyl)amine). The decomposition rate of the [M(II)(cod)(N-ligand)](2+) species decreases with increasing N-ligand bulk in the following order: dpa>pla>Bn-dla. Decomposition of the most hindered [M(II)(cod)(Bn-dla)](2+) complexes proceeds by a second-order process. The kinetic rate expression v=k(obs)[M(II)](2) in acetone with k(obs)=k'[H(+)][S], where [S] is the concentration of additional coordinating reagents (MeCN), is in agreement with ligand-assisted dissociation of one of the pyridine donors. Solvent coordination results in formation of more open, reactive species. Protonation of the noncoordinating pyridyl group increases the concentration of this species, and thus [H(+)] appears in the kinetic rate expression. The kinetic data are in agreement with bimolecular hydrogen-atom transfer from M(II)(cod) to another M(II) species (DeltaH( not equal)=11.5+/-2 kcal mol(-1), DeltaS( not equal)=-27+/-10 cal K(-1) mol(-1), and DeltaG( not equal)(298 K)=19.5+/-5 kcal mol(-1)).
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de Bruin B, Hetterscheid DGH. Paramagnetic (Alkene)Rh and (Alkene)Ir Complexes: Metal or Ligand Radicals? Eur J Inorg Chem 2007. [DOI: 10.1002/ejic.200600923] [Citation(s) in RCA: 63] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Bas de Bruin
- University of Amsterdam, Van't Hoff Institute for Molecular Chemistry (HIMS), Department of Homogeneous and Supramolecular Catalysis, Nieuwe Achtergracht 166, 1018 WV Amsterdam, The Netherlands, Fax: +31‐20‐525‐6422
| | - Dennis G. H. Hetterscheid
- Radboud University Nijmegen, Institute for Molecules and Materials (IMM), Toernooiveld 1, 6525 ED Nijmegen, The Netherlands
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Gauthier S, Solari E, Dutta B, Scopelliti R, Severin K. A new coupling reaction for the synthesis of ruthenium half-sandwich complexes with sterically demanding cyclopentadienyl ligands. Chem Commun (Camb) 2007:1837-9. [PMID: 17476404 DOI: 10.1039/b618712a] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The reaction of RuCl(3)(solv.)(n) with tert-butylacetylene in methanol or ethanol leads to the formation of chloro-bridged half-sandwich complexes with sterically demanding cyclopentadienyl ligands, which are of high interest as starting materials for the synthesis of novel Ru catalysts.
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Affiliation(s)
- Sébastien Gauthier
- Institut des Sciences et Ingénierie Chimiques, Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland
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Wen TB, Zhou ZY, Jia G. Osmium-mediated hexamerization of phenylacetylene. Angew Chem Int Ed Engl 2006; 45:5842-6. [PMID: 16881024 DOI: 10.1002/anie.200601542] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Ting Bin Wen
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, P.R. China
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Lim MS, Baeg JY, Lee SW. Reactivity of [Cp∗Rh(η6-C6H3NH2-2,6-i-Pr2)](OTf)2 toward phosphines and alkynes. J Organomet Chem 2006. [DOI: 10.1016/j.jorganchem.2006.06.016] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Reactivity of silyl-substituted heterobimetallic iron–platinum hydride complexes: Part III. Alkyne insertions into the platinum–hydride bond and competition between μ-vinylidene and dimetallacyclopentenone formation. INORG CHEM COMMUN 2006. [DOI: 10.1016/j.inoche.2005.09.027] [Citation(s) in RCA: 16] [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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Chin CS, Lee H. New iridacyclohexadienes and iridabenzenes by [2+2+1] cyclotrimerization of alkynes and facile interconversion between iridacyclohexadienes and iridabenzenes. Chemistry 2006; 10:4518-22. [PMID: 15378630 DOI: 10.1002/chem.200400109] [Citation(s) in RCA: 64] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
Iridabenzenes [Ir[=CHCH=CHCH=C(CH2R)](CH3CN)2(PPh3)2]2+ (R=Ph 4 a, R=p-C6H4CH3 4 b) are obtained from the reactions of H+ with iridacyclohexadienes [Ir[-CH=CHCH=CHC(=CH-p-C6H4R')](CO)(PPh3)2]+ (R'=H 3 a, R'=CH3 3 b), which are prepared from [2+2+1] cyclotrimerization of alkynes in the reactions of [Ir(CH3CN)(CO)(PPh3)2]+ with HC[triple chemical bond]CH and HC[triple chemical bond]CR. Iridabenzenes 4 react with CO and CH3CN in the presence of NEt3 to give iridacyclohexadienes [Ir[-CH=CHCH=CHC(=CHR)](CO)2(PPh3)2]+ (6) and [Ir[-CH=CHCH=CHC(=CHR)](CH3CN)2(PPh3)2]+ (7), respectively. Iridacyclohexadienes 6 and 7 also convert to iridabenzenes 4 by the reactions with H+ in the presence of CH3CN. Alkynyl iridacyclohexadienes [Ir[-CH=CHCH=CHC(=CH-p-C6H4R')](-C[triple chemical bond]CH)(PPh3)2] (8) undergo a cleavage of C[triple chemical bond]C bond by H+/H2O to produce [Ir[-CH=CHCH=CHC(=CH-p-C6H4R')](-CH3)(CO)(PPh3)2] (10) via facile inter-conversion between iridacyclohexadienes and iridabenzenes.
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Affiliation(s)
- Chong Shik Chin
- Department of Chemistry, Sogang University, Seoul 121-742, Korea
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Chin CS, Lee H. Formation of metal–carbon σ-bonds via reactions of alkynes with iridium and their reactivity toward carbon–carbon bond formation with neighboring hydrocarbyl ligands. CR CHIM 2005. [DOI: 10.1016/j.crci.2004.11.043] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Chin CS, Lee H, Eum MS. Iridabenzenes from Iridacyclopentadienes: Unusual C−C Bond Formation between Unsaturated Hydrocarbyl Ligands. Organometallics 2005. [DOI: 10.1021/om050529a] [Citation(s) in RCA: 53] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Chong Shik Chin
- Chemistry Department, Sogang University, Seoul, 121-742, Korea
| | - Hyungeui Lee
- Chemistry Department, Sogang University, Seoul, 121-742, Korea
| | - Min-Sik Eum
- Chemistry Department, Sogang University, Seoul, 121-742, Korea
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Takahashi T, Liu Y, Iesato A, Chaki S, Nakajima K, Kanno KI. Formation of Linear Tetramers of Diarylalkynes by the Zr/Cr System. J Am Chem Soc 2005; 127:11928-9. [PMID: 16117517 DOI: 10.1021/ja052864w] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The reaction of diarylalkynes with Cp2ZrBu2 and successive treatment with CrCl3 afforded linear tetramers of diarylalkynes, (1E,3E,5E,7E)-octatetraenes. On the other hand, dialkylalkynes did not give the corresponding octatetraenes but cyclized products, such as pyridines and pyridones, by the reaction with nitriles and isocyanates.
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Affiliation(s)
- Tamotsu Takahashi
- Catalysis Research Center and Graduate School of Pharmaceutical Sciences, Hokkaido University and SORST, Japan Science and Technology Agency (JST), Sapporo 001-0021, Japan.
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Han WS, Lee SW. Preparation of Novel Rhodonocenium Complexes via [2 + 2 + 1] Cyclotrimerization of Terminal Aryl Alkynes. Organometallics 2005. [DOI: 10.1021/om0492404] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Won Seok Han
- Department of Chemistry (BK21), Institute of Basic Science, Sungkyunkwan University, Natural Science Campus, Suwon 440-746, Korea
| | - Soon W. Lee
- Department of Chemistry (BK21), Institute of Basic Science, Sungkyunkwan University, Natural Science Campus, Suwon 440-746, Korea
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Hetterscheid DGH, Kaiser J, Reijerse E, Peters TPJ, Thewissen S, Blok ANJ, Smits JMM, de Gelder R, de Bruin B. IrII(ethene): Metal or Carbon Radical? J Am Chem Soc 2005; 127:1895-905. [PMID: 15701024 DOI: 10.1021/ja0439470] [Citation(s) in RCA: 68] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
One-electron oxidation of [(Me(n)tpa)Ir(I)(ethene)]+ complexes (Me(3)tpa = N,N,N-tri(6-methyl-2-pyridylmethyl)amine; Me(2)tpa = N-(2-pyridylmethyl)-N,N,-di[(6-methyl-2-pyridyl)methyl]-amine) results in relatively stable, five-coordinate Ir(II)-olefin species [(Me(n)tpa)Ir(II)(ethene)](2+) (1(2+): n = 3; 2(2+): n = 2). These contain a "vacant site" at iridium and a "non-innocent" ethene fragment, allowing radical type addition reactions at both the metal and the ethene ligand. The balance between metal- and ligand-centered radical behavior is influenced by the donor capacity of the solvent. In weakly coordinating solvents, 1(2+) and 2(2+) behave as moderately reactive metallo-radicals. Radical coupling of 1(2+) with NO in acetone occurs at the metal, resulting in dissociation of ethene and formation of the stable nitrosyl complex [(Me(3)tpa)Ir(NO)](2+) (6(2+)). In the coordinating solvent MeCN, 1(2+) generates more reactive radicals; [(Me(3)tpa)Ir(MeCN)(ethene)](2+) (9(2+)) by MeCN coordination, and [(Me(3)tpa)Ir(II)(MeCN)](2+) (10(2+)) by substitution of MeCN for ethene. Complex 10(2+) is a metallo-radical, like 1(2+) but more reactive. DFT calculations indicate that 9(2+) is intermediate between the slipped-olefin Ir(II)(CH(2)=CH(2)) and ethyl radical Ir(III)-CH(2)-CH(2). resonance structures, of which the latter prevails. The ethyl radical character of 9(2+) allows radical type addition reactions at the ethene ligand. Complex 2(2+) behaves similarly in MeCN. In the absence of further reagents, 1(2+) and 2(2+) convert to the ethylene bridged species [(Me(n)tpa)(MeCN)Ir(III)(mu(2)-C(2)H(4))Ir(III)(MeCN)(Me(3)tpa)](4+) (n = 3: 3(4+); n = 2: 4(4+)) in MeCN. In the presence of TEMPO (2,2,6,6-tetramethyl-1-piperidinyloxo), formation of 3(4+) from 1(2+) in MeCN is completely suppressed and only [(Me(3)tpa)Ir(III)(TEMPO(-))(MeCN)](2+) (7(2+)) is formed. This is thought to proceed via radical coupling of TEMPO at the metal center of 10(2+). In the presence of water, hydrolysis of the coordinated acetonitrile fragment of 7(2+) results in the acetamido complex [(Me(3)tpa)Ir(III)(NHC(O)CH(3)))(TEMPOH)](2+) (8(2+)).
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Affiliation(s)
- Dennis G H Hetterscheid
- Radboud University Nijmegen, Institute for Molecules and Materials, Department of Metal-Organic Chemistry, Toernooiveld 1, NL-6525 ED Nijmegen (The Netherlands)
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Li X, Vogel T, Incarvito CD, Crabtree RH. Electronic and Steric Effects in the Insertion of Alkynes into an Iridium(III) Hydride. Organometallics 2004. [DOI: 10.1021/om049271z] [Citation(s) in RCA: 64] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Xingwei Li
- Department of Chemistry, Yale University, 225 Prospect Street, New Haven, Connecticut 06520
| | - Tiffany Vogel
- Department of Chemistry, Yale University, 225 Prospect Street, New Haven, Connecticut 06520
| | | | - Robert H. Crabtree
- Department of Chemistry, Yale University, 225 Prospect Street, New Haven, Connecticut 06520
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Martín M, Sola E, Torres O, Plou P, Oro LA. Versatility of Cyclooctadiene Ligands in Iridium Chemistry and Catalysis. Organometallics 2003. [DOI: 10.1021/om034218g] [Citation(s) in RCA: 70] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Marta Martín
- Departamento de Química Inorgánica, Instituto de Ciencia de Materiales de Aragón, Universidad de Zaragoza-CSIC, 50009 Zaragoza, Spain
| | - Eduardo Sola
- Departamento de Química Inorgánica, Instituto de Ciencia de Materiales de Aragón, Universidad de Zaragoza-CSIC, 50009 Zaragoza, Spain
| | - Olga Torres
- Departamento de Química Inorgánica, Instituto de Ciencia de Materiales de Aragón, Universidad de Zaragoza-CSIC, 50009 Zaragoza, Spain
| | - Pablo Plou
- Departamento de Química Inorgánica, Instituto de Ciencia de Materiales de Aragón, Universidad de Zaragoza-CSIC, 50009 Zaragoza, Spain
| | - Luis A. Oro
- Departamento de Química Inorgánica, Instituto de Ciencia de Materiales de Aragón, Universidad de Zaragoza-CSIC, 50009 Zaragoza, Spain
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36
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Gervasio G, King PJ, Marabello D, Sappa E. Transition metal carbonyl clusters with ene–yne ligands. Inorganica Chim Acta 2003. [DOI: 10.1016/s0020-1693(02)01571-2] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Chin CS, Kim M, Lee MK, Lee H. Acyliridium-Alkoxycarbenes and an Iridacycle Containing Vinyl Acetate (−C(CH2)OC(CH3)O−) Ligand from Reactions of Acetatoiridium with Alkynes. Organometallics 2003. [DOI: 10.1021/om0302746] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Chong Shik Chin
- Department of Chemistry, Sogang University, Seoul 121-742, Korea
| | - Mieock Kim
- Department of Chemistry, Sogang University, Seoul 121-742, Korea
| | - Myung Ki Lee
- Department of Chemistry, Sogang University, Seoul 121-742, Korea
| | - Hyungeui Lee
- Department of Chemistry, Sogang University, Seoul 121-742, Korea
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38
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Hetterscheid DGH, de Bruin B, Smits JMM, Gal AW. Disproportionation of RhII(cod) to RhI(cod) and RhIII(cycloocta-2,5-dien-1-yl): Hydrogen Atom Transfer vs Electron and Proton Transfer. Organometallics 2003. [DOI: 10.1021/om030192h] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Dennis G. H. Hetterscheid
- Department of Inorganic Chemistry, University of Nijmegen, Toernooiveld 1, 6525 ED Nijmegen, The Netherlands
| | - Bas de Bruin
- Department of Inorganic Chemistry, University of Nijmegen, Toernooiveld 1, 6525 ED Nijmegen, The Netherlands
| | - Jan M. M. Smits
- Department of Inorganic Chemistry, University of Nijmegen, Toernooiveld 1, 6525 ED Nijmegen, The Netherlands
| | - Anton W. Gal
- Department of Inorganic Chemistry, University of Nijmegen, Toernooiveld 1, 6525 ED Nijmegen, The Netherlands
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39
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Chin CS, Lee H, Noh S, Park H, Kim M. Carbon−Carbon Bond Formation between Adjacent Alkenyl Ligands: η3-Allyl Iridium(III) and η4-Butadiene Iridium(I) Complexes from a cis-Bis(alkenyl) Iridium(III) Complex. Organometallics 2003. [DOI: 10.1021/om030090r] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Chong Shik Chin
- Chemistry Department, Sogang University, Seoul 121-742, Korea
| | - Hyungeui Lee
- Chemistry Department, Sogang University, Seoul 121-742, Korea
| | - Soyoung Noh
- Chemistry Department, Sogang University, Seoul 121-742, Korea
| | - Hyeyun Park
- Chemistry Department, Sogang University, Seoul 121-742, Korea
| | - Mieock Kim
- Chemistry Department, Sogang University, Seoul 121-742, Korea
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Li X, Incarvito CD, Crabtree RH. A rare eta2-butadienyl complex from an alkyne double insertion with double vinylidene rearrangement. J Am Chem Soc 2003; 125:3698-9. [PMID: 12656590 DOI: 10.1021/ja0297281] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A rare eta2-butadienyl Ir(III) complex with a weak Ir...C bond is formed from 1-alkyne double insertion with the independent double alkyne to vinylidene rearrangement. A reaction intermediate is isolated, and labeling and crossover experiments indicate the intramolecularity of both alkyne to vinylidene rearrangements.
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Affiliation(s)
- Xingwei Li
- Department of Chemistry, Yale University, New Haven, Connecticut 06520-8107, USA
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41
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Chin CS, Kim M, Lee H, Noh S, Ok KM. Regio- and Stereoselective C−C Bond Formation between Alkynes: Synthesis of Linear Dienynes from Alkynes. Organometallics 2002. [DOI: 10.1021/om020493b] [Citation(s) in RCA: 40] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Chong Shik Chin
- Chemistry Department, Sogang University, Seoul 121-742, Korea
| | - Mieock Kim
- Chemistry Department, Sogang University, Seoul 121-742, Korea
| | - Hyungeui Lee
- Chemistry Department, Sogang University, Seoul 121-742, Korea
| | - Soyoung Noh
- Chemistry Department, Sogang University, Seoul 121-742, Korea
| | - Kang Min Ok
- Chemistry Department, Sogang University, Seoul 121-742, Korea
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Chin CS, Lee H, Park H, Kim M. Synthesis of Cross-Conjugated Olefins from Alkynes: Regioselective C−C Bond Formation between Alkynes. Organometallics 2002. [DOI: 10.1021/om020410r] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Chong Shik Chin
- Chemistry Department, Sogang University, Seoul 121-742, Korea
| | - Hyungeui Lee
- Chemistry Department, Sogang University, Seoul 121-742, Korea
| | - Hyeyun Park
- Chemistry Department, Sogang University, Seoul 121-742, Korea
| | - Mieock Kim
- Chemistry Department, Sogang University, Seoul 121-742, Korea
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Komatsu H, Suzuki Y, Yamazaki H. Unprecedented Rhodium-Mediated Tetramerization of Bulky Terminal Alkynes Leading to Hydropentalenylrhodium Complexes. CHEM LETT 2001. [DOI: 10.1246/cl.2001.998] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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44
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Alvarez P, Gimeno J, Lastra E, García-Granda S, Van der Maelen JF, Bassetti M. Synthesis and Reactivity of Indenyl Ruthenium(II) Complexes Containing the Labile Ligand 1,5-Cyclooctadiene (COD): Catalytic Activity of [Ru(η5-C9H7)Cl(COD)]. Organometallics 2001. [DOI: 10.1021/om010205w] [Citation(s) in RCA: 59] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Patricia Alvarez
- Departamento de Química Orgánica e Inorgánica, Facultad de Química, Universidad de Oviedo, Instituto de Química Universitaria “Enrique Moles” (Unidad Asociada al CSIC), 33006 Oviedo, Spain, Departamento de Química Física y Analítica, Facultad de Química, Universidad de Oviedo, 33006 Oviedo, Spain, and Centro CNR di Studio sui Meccanismi di Reazione, c/o Dipartimento di Chimica, Universitá “La Sapienza”, 00185 Roma, Italy
| | - José Gimeno
- Departamento de Química Orgánica e Inorgánica, Facultad de Química, Universidad de Oviedo, Instituto de Química Universitaria “Enrique Moles” (Unidad Asociada al CSIC), 33006 Oviedo, Spain, Departamento de Química Física y Analítica, Facultad de Química, Universidad de Oviedo, 33006 Oviedo, Spain, and Centro CNR di Studio sui Meccanismi di Reazione, c/o Dipartimento di Chimica, Universitá “La Sapienza”, 00185 Roma, Italy
| | - Elena Lastra
- Departamento de Química Orgánica e Inorgánica, Facultad de Química, Universidad de Oviedo, Instituto de Química Universitaria “Enrique Moles” (Unidad Asociada al CSIC), 33006 Oviedo, Spain, Departamento de Química Física y Analítica, Facultad de Química, Universidad de Oviedo, 33006 Oviedo, Spain, and Centro CNR di Studio sui Meccanismi di Reazione, c/o Dipartimento di Chimica, Universitá “La Sapienza”, 00185 Roma, Italy
| | - Santiago García-Granda
- Departamento de Química Orgánica e Inorgánica, Facultad de Química, Universidad de Oviedo, Instituto de Química Universitaria “Enrique Moles” (Unidad Asociada al CSIC), 33006 Oviedo, Spain, Departamento de Química Física y Analítica, Facultad de Química, Universidad de Oviedo, 33006 Oviedo, Spain, and Centro CNR di Studio sui Meccanismi di Reazione, c/o Dipartimento di Chimica, Universitá “La Sapienza”, 00185 Roma, Italy
| | - Juan Francisco Van der Maelen
- Departamento de Química Orgánica e Inorgánica, Facultad de Química, Universidad de Oviedo, Instituto de Química Universitaria “Enrique Moles” (Unidad Asociada al CSIC), 33006 Oviedo, Spain, Departamento de Química Física y Analítica, Facultad de Química, Universidad de Oviedo, 33006 Oviedo, Spain, and Centro CNR di Studio sui Meccanismi di Reazione, c/o Dipartimento di Chimica, Universitá “La Sapienza”, 00185 Roma, Italy
| | - Mauro Bassetti
- Departamento de Química Orgánica e Inorgánica, Facultad de Química, Universidad de Oviedo, Instituto de Química Universitaria “Enrique Moles” (Unidad Asociada al CSIC), 33006 Oviedo, Spain, Departamento de Química Física y Analítica, Facultad de Química, Universidad de Oviedo, 33006 Oviedo, Spain, and Centro CNR di Studio sui Meccanismi di Reazione, c/o Dipartimento di Chimica, Universitá “La Sapienza”, 00185 Roma, Italy
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Balcar H, Sedláček J, Zednı́k J, Blechta V, Kubát P, Vohlı́dal J. Polymerization of isomeric N -(4-substituted benzylidene)-4-ethynylanilines and 4-substituted N -(4-ethynylbenzylidene)anilines by transition metal catalysts: preparation and characterization of new substituted polyacetylenes with aromatic Schiff base type pendant groups. POLYMER 2001. [DOI: 10.1016/s0032-3861(01)00148-3] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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46
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Weller AS, Mahon MF, Steed JW. Rhodium cyclooctadiene complexes of the weakly co-ordinating carborane anion [closo-CB11H12]−. Isolation and crystal structures of [(COD)Rh(η2-CB11H12)] and [(COD)Rh(THF)2][CB11H12]. J Organomet Chem 2000. [DOI: 10.1016/s0022-328x(00)00608-2] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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