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Tanahashi H, Tsurugi H, Mashima K. Synthesis of Alkyl and Alkylidene Complexes of Tungsten Bearing Imido and Redox-Active α-Diimine or o-Iminoquinone Ligands and Their Application as Catalysts for Ring-Opening Metathesis Polymerization of Norbornene. Organometallics 2015. [DOI: 10.1021/om501010n] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Affiliation(s)
- Hiromasa Tanahashi
- Department of Chemistry,
Graduate School of Engineering Science, Osaka University and CREST, JST, Toyonaka, Osaka 560-8531, Japan
| | - Hayato Tsurugi
- Department of Chemistry,
Graduate School of Engineering Science, Osaka University and CREST, JST, Toyonaka, Osaka 560-8531, Japan
| | - Kazushi Mashima
- Department of Chemistry,
Graduate School of Engineering Science, Osaka University and CREST, JST, Toyonaka, Osaka 560-8531, Japan
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2
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Sinha A, Schrock RR, Müller P, Hoveyda AH. Diphenylamido Precursors to Bisalkoxide Molybdenum Olefin Metathesis Catalysts. Organometallics 2006; 25:4621-4626. [PMID: 19030118 PMCID: PMC2585777 DOI: 10.1021/om060430j] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
We have found that Mo(NAr)(CHR')(NPh(2))(2) (R' = t-Bu or CMe(2)Ph) and Mo(NAr')(CHCMe(2)Ph)(NPh(2))(2) (Ar = 2,6-i-Pr(2)C(6)H(3); Ar' = 2,6-Me(2)C(6)H(3)) can be prepared through addition of two equivalents of LiNPh(2) to Mo(NR″)(CHR')(OTf)(2)(dme) species (R″ = Ar or Ar' dme = 1,2-dimethoxyethane), although yields are low. A high yield route consists of addition of LiNPh(2) to bishexafluro-t-butoxide species. An X-ray structure of Mo(NAr)(CHCMe(2)Ph)(NPh(2))(2) reveals that the two diphenylamido groups are oriented in a manner that allows an 18 electron count to be achieved. The diphenylamido complexes react readily with t-BuOH and (CF(3))(2)MeCOH, but not readily with the sterically demanding biphenol H(2)[Biphen] (Biphen(2-) = 3,3'-Di-t-butyl-5,5',6,6'-tetramethyl-1,1'-Biphenyl-2,2'-diolate). The diphenylamido complexes do react with various 3,3'-disubstituted binaphthols to yield binaphtholate catalysts that can be prepared in situ and employed for a simple asymmetric ring-closing metathesis reaction. In several cases conversions and enantioselectivities were comparable to reactions in which isolated catalysts were employed.
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Affiliation(s)
- Amritanshu Sinha
- Department of Chemistry 6-331, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139
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Hirsekorn KF, Veige AS, Marshak MP, Koldobskaya Y, Wolczanski PT, Cundari TR, Lobkovsky EB. Thermodynamics, Kinetics, and Mechanism of (silox)3M(olefin) to (silox)3M(alkylidene) Rearrangements (silox = tBu3SiO; M = Nb, Ta). J Am Chem Soc 2005; 127:4809-30. [PMID: 15796547 DOI: 10.1021/ja046180k] [Citation(s) in RCA: 76] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Olefin complexes (silox)(3)M(ole) (silox = (t)Bu(3)SiO; M = Nb (1-ole), Ta (2-ole); ole = C(2)H(4), C(2)H(3)Me, C(2)H(3)Et, C(2)H(3)C(6)H(4)-p-X (X = OMe, H, CF(3)), C(2)H(3)(t)Bu, (c)C(5)H(8), (c)C(6)H(10), (c)C(7)H(10) (norbornene)) rearrange to alkylidene isomers (silox)(3)M(alk) (M = Nb (1=alk), Ta (2=alk); alk = CHMe, CHEt, CH(n)Pr, CHCH(2)C(6)H(4)-p-X (X = OMe, H, CF(3) (Ta only)), CHCH(2)(t)Bu, (c)C(5)H(8), (c)C(6)H(10), (c)C(7)H(10) (norbornylidene)). Kinetics and labeling experiments suggest that the rearrangement proceeds via a delta-abstraction on a silox CH bond by the beta-olefin carbon to give (silox)(2)RM(kappa(2)-O,C-OSi(t)Bu(2)CMe(2)CH(2)) (M = Nb (4-R), Ta (6-R); R = Me, Et, (n)Pr, (n)Bu, CH(2)CH(2)C(6)H(4)-p-X (X = OMe, H, CF(3) (Ta only)), CH(2)CH(2)(t)Bu, (c)C(5)H(9), (c)C(6)H(11), (c)C(7)H(11) (norbornyl)). A subsequent alpha-abstraction by the cylometalated "arm" of the intermediate on an alpha-CH bond of R generates the alkylidene 1=alk or 2=alk. Equilibrations of 1-ole with ole' to give 1-ole' and ole, and relevant calculations on 1-ole and 2-ole, permit interpretation of all relative ground and transition state energies for the complexes of either metal.
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Affiliation(s)
- Kurt F Hirsekorn
- Department of Chemistry and Chemical Biology, Baker Laboratory, Cornell University, Ithaca, NY 14853, USA
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Synthesis and mechanistic investigations of the decomposition of β-hydrogen containing W(VI) dialkyl complexes: β-H elimination vs. β-H abstraction. Polyhedron 2004. [DOI: 10.1016/j.poly.2004.09.002] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Deckers PJW, Hessen B. C−H Bond Activation Processes in Cationic and Neutral Titanium Benzyl Compounds with Cyclopentadienyl−Arene Ligands. Organometallics 2002. [DOI: 10.1021/om0206554] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Patrick J. W. Deckers
- Dutch Polymer Institute/Center for Catalytic Olefin Polymerization, Stratingh Institute for Chemistry and Chemical Engineering, University of Groningen, Nijenborgh 4, NL-9747AG, Groningen, The Netherlands
| | - Bart Hessen
- Dutch Polymer Institute/Center for Catalytic Olefin Polymerization, Stratingh Institute for Chemistry and Chemical Engineering, University of Groningen, Nijenborgh 4, NL-9747AG, Groningen, The Netherlands
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Affiliation(s)
- Richard R Schrock
- Department of Chemistry 6-331, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, USA.
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Galka CH, Trösch DJM, Rüdenauer I, Gade LH, Scowen I, McPartlin M. Synthesis and Structural Characterization of Metalated 1,8-Bis(silylamino)naphthalene Derivatives. Inorg Chem 2000. [DOI: 10.1021/ic000296+] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Jamieson JY, Schrock RR, Davis WM, Bonitatebus PJ, Zhu SS, Hoveyda AH. Synthesis of Molybdenum Imido Alkylidene Complexes Containing N,N‘-Disubstituted 2,2‘-Bisamido-1,1‘-binaphthyl Ligands. Organometallics 2000. [DOI: 10.1021/om9908332] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Jennifer Y. Jamieson
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, and Department of Chemistry, Merkert Chemistry Center, Boston College, Chestnut Hill, Massachusetts 02467
| | - Richard R. Schrock
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, and Department of Chemistry, Merkert Chemistry Center, Boston College, Chestnut Hill, Massachusetts 02467
| | - William M. Davis
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, and Department of Chemistry, Merkert Chemistry Center, Boston College, Chestnut Hill, Massachusetts 02467
| | - Peter J. Bonitatebus
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, and Department of Chemistry, Merkert Chemistry Center, Boston College, Chestnut Hill, Massachusetts 02467
| | - S. Sherry Zhu
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, and Department of Chemistry, Merkert Chemistry Center, Boston College, Chestnut Hill, Massachusetts 02467
| | - Amir H. Hoveyda
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, and Department of Chemistry, Merkert Chemistry Center, Boston College, Chestnut Hill, Massachusetts 02467
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9
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The synthesis of tungsten imido hydride complexes by the hydrogenolysis of dialkyl complexes. J Organomet Chem 1999. [DOI: 10.1016/s0022-328x(99)00484-2] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Ortiz CG, Abboud KA, Boncella JM. Synthesis of Chelate-Supported Dialkyl and Alkylidene Complexes of Molybdenum(VI). Organometallics 1999. [DOI: 10.1021/om990124o] [Citation(s) in RCA: 36] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Carlos G. Ortiz
- Department of Chemistry and Center for Catalysis, University of Florida, Gainesville, Florida 32611-7200
| | - Khalil A. Abboud
- Department of Chemistry and Center for Catalysis, University of Florida, Gainesville, Florida 32611-7200
| | - James M. Boncella
- Department of Chemistry and Center for Catalysis, University of Florida, Gainesville, Florida 32611-7200
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11
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C–H activation of a MeN grouping in one of the CH2NMe2 ortho substituents of a NCN ‘pincer’ ligand in tungsten chemistry: X-ray structure of [WCl2(NPh)(C6H3{CH2NMeCH2}-2-{CH2NMe2}-6)]. J Organomet Chem 1999. [DOI: 10.1016/s0022-328x(99)00199-0] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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12
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Fryzuk MD, Duval PB, Mao SSSH, Zaworotko MJ, MacGillivray LR. Mechanistic Studies of the Formation of Zirconium Alkylidene Complexes [η5-C5H3-1,3-(SiMe2CH2PPri2)2]ZrCHR(Cl) (R = Ph, SiMe3). J Am Chem Soc 1999. [DOI: 10.1021/ja982969h] [Citation(s) in RCA: 46] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Michael D. Fryzuk
- Contribution from the Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, B.C., Canada V6T 1Z1, and Department of Chemistry, St. Mary's University, Halifax, N.S., Canada B3H 3C3
| | - Paul B. Duval
- Contribution from the Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, B.C., Canada V6T 1Z1, and Department of Chemistry, St. Mary's University, Halifax, N.S., Canada B3H 3C3
| | - Shane S. S. H. Mao
- Contribution from the Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, B.C., Canada V6T 1Z1, and Department of Chemistry, St. Mary's University, Halifax, N.S., Canada B3H 3C3
| | - Michael J. Zaworotko
- Contribution from the Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, B.C., Canada V6T 1Z1, and Department of Chemistry, St. Mary's University, Halifax, N.S., Canada B3H 3C3
| | - Leonard R. MacGillivray
- Contribution from the Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, B.C., Canada V6T 1Z1, and Department of Chemistry, St. Mary's University, Halifax, N.S., Canada B3H 3C3
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Wang SYS, VanderLende DD, Abboud KA, Boncella JM. Metallacyclopentane Formation: A Deactivation Pathway for a Tungsten(VI) Alkylidene Complex in Olefin Metathesis Reactions. Organometallics 1998. [DOI: 10.1021/om9708283] [Citation(s) in RCA: 43] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Shu-Yu S. Wang
- Department of Chemistry and Center for Catalysis, University of Florida, Gainesville, Florida 32611
| | - Daniel D. VanderLende
- Department of Chemistry and Center for Catalysis, University of Florida, Gainesville, Florida 32611
| | - Khalil A. Abboud
- Department of Chemistry and Center for Catalysis, University of Florida, Gainesville, Florida 32611
| | - James M. Boncella
- Department of Chemistry and Center for Catalysis, University of Florida, Gainesville, Florida 32611
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Synthesis of chloro and methyl imido cyclopentadienyl molybdenum and tungsten complexes. X-ray molecular structures of WCp*Cl3(NtBu), MoCp*ClMe2(NtBu) and WCp*ClMe2(NtBu). Inorganica Chim Acta 1998. [DOI: 10.1016/s0020-1693(97)05967-7] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Huff RL, Wang SYS, Abboud KA, Boncella JM. Reactions of Tungsten(VI) Dialkyl Complexes with tBuNC: Synthesis and Characterization of New Square Pyramidal and Trigonal Bipyramidal Tungsten(VI) Complexes. Organometallics 1997. [DOI: 10.1021/om960773p] [Citation(s) in RCA: 22] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- R. Leigh Huff
- Department of Chemistry and Center for Catalysis, University of Florida, Gainesville, Florida 32611-7200
| | - Shu-Yu S. Wang
- Department of Chemistry and Center for Catalysis, University of Florida, Gainesville, Florida 32611-7200
| | - Khalil A. Abboud
- Department of Chemistry and Center for Catalysis, University of Florida, Gainesville, Florida 32611-7200
| | - James M. Boncella
- Department of Chemistry and Center for Catalysis, University of Florida, Gainesville, Florida 32611-7200
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Boncella JM, Wang SYS, Vanderlende DD, Leigh Huff R, Abboud KA, Vaughn WM. Synthesis, characterization, and X-ray crystal structures of W(VI) alkyl complexes with chelating diamide and imido co-ligands. J Organomet Chem 1997. [DOI: 10.1016/s0022-328x(96)06439-x] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Riley PN, Profilet RD, Fanwick PE, Rothwell IP. 1,3-Dimetallacyclobutadiene Derivatives of Niobium and Tantalum Supported by Carbazole Ligation: Reactivity with Organic Isocyanides. Organometallics 1996. [DOI: 10.1021/om9604379] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- Patrick N. Riley
- Department of Chemistry, 1393 Brown Building, Purdue University, West Lafayette, Indiana 47907-1393
| | - Robert D. Profilet
- Department of Chemistry, 1393 Brown Building, Purdue University, West Lafayette, Indiana 47907-1393
| | - Phillip E. Fanwick
- Department of Chemistry, 1393 Brown Building, Purdue University, West Lafayette, Indiana 47907-1393
| | - Ian P. Rothwell
- Department of Chemistry, 1393 Brown Building, Purdue University, West Lafayette, Indiana 47907-1393
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Horton AD, de With J, van der Linden AJ, van de Weg H. Cationic Alkylzirconium Complexes Based on a Tridentate Diamide Ligand: New Alkene Polymerization Catalysts. Organometallics 1996. [DOI: 10.1021/om960073k] [Citation(s) in RCA: 257] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Andrew D. Horton
- Shell Research and Technology Centre, Amsterdam, Postbus 38000, 1030 BN Amsterdam, The Netherlands
| | - Jan de With
- Shell Research and Technology Centre, Amsterdam, Postbus 38000, 1030 BN Amsterdam, The Netherlands
| | - Arjan J. van der Linden
- Shell Research and Technology Centre, Amsterdam, Postbus 38000, 1030 BN Amsterdam, The Netherlands
| | - Henk van de Weg
- Shell Research and Technology Centre, Amsterdam, Postbus 38000, 1030 BN Amsterdam, The Netherlands
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