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Kell AT, Obeid NM, Bag P, Zimmer M, Huch V, Scheschkewitz D. Reactivity of Phenylacetylene toward Unsymmetrical Disilenes: Regiodivergent [2+2] Cycloaddition vs. CH Addition. Z Anorg Allg Chem 2021. [DOI: 10.1002/zaac.202100137] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Andreas T. Kell
- Krupp Chair of General and Inorganic Chemistry Saarland University Campus, Bldg. C4.1 66123 Saarbrücken
| | - Naim M. Obeid
- Krupp Chair of General and Inorganic Chemistry Saarland University Campus, Bldg. C4.1 66123 Saarbrücken
| | - Prasenjit Bag
- Krupp Chair of General and Inorganic Chemistry Saarland University Campus, Bldg. C4.1 66123 Saarbrücken
| | - Michael Zimmer
- Krupp Chair of General and Inorganic Chemistry Saarland University Campus, Bldg. C4.1 66123 Saarbrücken
| | - Volker Huch
- Krupp Chair of General and Inorganic Chemistry Saarland University Campus, Bldg. C4.1 66123 Saarbrücken
| | - David Scheschkewitz
- Krupp Chair of General and Inorganic Chemistry Saarland University Campus, Bldg. C4.1 66123 Saarbrücken
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2
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Evans MJ, Burke FM, Chapple PM, Fulton JR. Synthesis and Reactivity of Acyclic Germanimines: Silyl Rearrangement and Cycloadditions. Inorg Chem 2021; 60:8293-8303. [PMID: 33988988 DOI: 10.1021/acs.inorgchem.1c00971] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
We report the synthesis of aromatic germanimines [(HMDS)2Ge═NAr] (Ar = Ph, Mes, Dipp; Mes = 2,4,6-Me3C6H2, Dipp = 2,6-iPr2C6H3) and an investigation into their associated reactivity. [(HMDS)2Ge═NPh] decomposes above -30 °C, while [(HMDS)2Ge═NDipp] engages in an intramolecular reaction at 60 °C. [(HMDS)2Ge═NMes] was shown to rearrange via a 1,3-silyl migration to give [(HMDS){(SiMe3)(Mes)N}Ge(NSiMe3)] in a 1:7 equilibrium mixture at room temperature. These latter germanimines react with unsaturated polar substrates such as CO2, ketones, and arylisocyanate via a [2 + 2] cycloaddition pathway.
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Affiliation(s)
- Matthew J Evans
- School of Chemical and Physical Sciences, Victoria University of Wellington, P.O. Box 600, Wellington 6012, New Zealand
| | - Finlay M Burke
- School of Chemical and Physical Sciences, Victoria University of Wellington, P.O. Box 600, Wellington 6012, New Zealand
| | - Peter M Chapple
- School of Chemical and Physical Sciences, Victoria University of Wellington, P.O. Box 600, Wellington 6012, New Zealand
| | - J Robin Fulton
- School of Chemical and Physical Sciences, Victoria University of Wellington, P.O. Box 600, Wellington 6012, New Zealand
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Evans MJ, Anker MD, Mouchfiq A, Lein M, Fulton JR. The “Metallo”‐Diels–Alder Reactions: Examining the Metalloid Behavior of Germanimines. Chemistry 2020; 26:2606-2609. [DOI: 10.1002/chem.201905693] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2019] [Indexed: 12/13/2022]
Affiliation(s)
- Matthew J. Evans
- School of Chemical and Physical SciencesVictoria University of Wellington, PO Box 600 Wellington 6012 New Zealand
| | - Mathew D. Anker
- School of Chemical and Physical SciencesVictoria University of Wellington, PO Box 600 Wellington 6012 New Zealand
| | - Ahmed Mouchfiq
- School of Chemical and Physical SciencesVictoria University of Wellington, PO Box 600 Wellington 6012 New Zealand
| | - Matthias Lein
- School of Chemical and Physical SciencesVictoria University of Wellington, PO Box 600 Wellington 6012 New Zealand
| | - J. Robin Fulton
- School of Chemical and Physical SciencesVictoria University of Wellington, PO Box 600 Wellington 6012 New Zealand
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4
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Ludwiczak M, Bayda M, Dutkiewicz M, Frąckowiak D, Majchrzak M, Marciniak B, Marciniec B. New Arylene–Germylene–Vinylene Compounds: Stereoselective Synthesis, Characterization, and Photophysical Properties. Organometallics 2016. [DOI: 10.1021/acs.organomet.6b00336] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Monika Ludwiczak
- Center
of Advanced Technologies, Adam Mickiewicz University in Poznan, Umultowska 89c, 61-614 Poznan, Poland
- Faculty of Chemistry, Adam Mickiewicz University in Poznan, Umultowska 89b, 61-614 Poznan, Poland
| | - Małgorzata Bayda
- Faculty of Chemistry, Adam Mickiewicz University in Poznan, Umultowska 89b, 61-614 Poznan, Poland
| | - Michał Dutkiewicz
- Center
of Advanced Technologies, Adam Mickiewicz University in Poznan, Umultowska 89c, 61-614 Poznan, Poland
- Faculty of Chemistry, Adam Mickiewicz University in Poznan, Umultowska 89b, 61-614 Poznan, Poland
| | - Dawid Frąckowiak
- Center
of Advanced Technologies, Adam Mickiewicz University in Poznan, Umultowska 89c, 61-614 Poznan, Poland
| | - Mariusz Majchrzak
- Faculty of Chemistry, Adam Mickiewicz University in Poznan, Umultowska 89b, 61-614 Poznan, Poland
| | - Bronisław Marciniak
- Faculty of Chemistry, Adam Mickiewicz University in Poznan, Umultowska 89b, 61-614 Poznan, Poland
| | - Bogdan Marciniec
- Center
of Advanced Technologies, Adam Mickiewicz University in Poznan, Umultowska 89c, 61-614 Poznan, Poland
- Faculty of Chemistry, Adam Mickiewicz University in Poznan, Umultowska 89b, 61-614 Poznan, Poland
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Milnes KK, Pavelka LC, Baines KM. Cycloaddition of carbonyl compounds and alkynes to (di)silenes and (di)germenes: reactivity and mechanism. Chem Soc Rev 2016; 45:1019-35. [DOI: 10.1039/c5cs00522a] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The cycloaddition reactions of carbonyl compounds and alkynes to (di)tetrelenes appear to follow Woodward–Hoffman rules.
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Affiliation(s)
- Kaarina K. Milnes
- Department of Chemistry
- University of Western Ontario
- London
- Canada N6A 5B7
| | - Laura C. Pavelka
- Department of Chemistry
- University of Western Ontario
- London
- Canada N6A 5B7
| | - Kim M. Baines
- Department of Chemistry
- University of Western Ontario
- London
- Canada N6A 5B7
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6
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Tashkandi NY, Pavelka LC, Caputo CA, Boyle PD, Power PP, Baines KM. Addition of alkynes to digermynes: experimental insight into the reaction pathway. Dalton Trans 2016; 45:7226-30. [DOI: 10.1039/c6dt01015f] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The reaction pathway for the addition of alkynes to digermynes has been investigated using a mechanistic probe approach.
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Affiliation(s)
| | - Laura C. Pavelka
- Department of Chemistry
- University of Western Ontario
- London
- Canada
| | | | - Paul D. Boyle
- Department of Chemistry
- University of Western Ontario
- London
- Canada
| | - Philip P. Power
- Department of Chemistry
- University of California at Davis
- Davis
- USA
| | - Kim M. Baines
- Department of Chemistry
- University of Western Ontario
- London
- Canada
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7
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Hardwick JA, Baines KM. The Addition of Nitriles to a Molecular Digermene: Reversible Addition and Comparison to Surface Reactivity. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201501278] [Citation(s) in RCA: 4] [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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8
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Hardwick JA, Baines KM. The Addition of Nitriles to a Molecular Digermene: Reversible Addition and Comparison to Surface Reactivity. Angew Chem Int Ed Engl 2015; 54:6600-3. [DOI: 10.1002/anie.201501278] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2015] [Revised: 03/17/2015] [Indexed: 11/07/2022]
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Pavelka LC, Hanson MA, Staroverov VN, Baines KM. Mechanism of the addition of alkynes to silenes and germenes: A density functional study. CAN J CHEM 2015. [DOI: 10.1139/cjc-2014-0256] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Density functional theory (DFT) and the coupled cluster method have been used to study the mechanism of the cycloaddition of acetylene to silene, H2Si=CH2, and germene, H2Ge=CH2, at the B3LYP/6-311++G(d,p) and CCSD/6-311++G(d,p) levels of theory. Diradical, zwitterionic, and concerted pathways were located for both metallenes. The computational results were compared to experimental data to propose the most likely reaction pathway for each metallene.
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Affiliation(s)
- Laura C. Pavelka
- Department of Chemistry, The University of Western Ontario, 1151 Richmond Street North, London, ON N6A 5B7, Canada
| | - Margaret A. Hanson
- Department of Chemistry, The University of Western Ontario, 1151 Richmond Street North, London, ON N6A 5B7, Canada
| | - Viktor N. Staroverov
- Department of Chemistry, The University of Western Ontario, 1151 Richmond Street North, London, ON N6A 5B7, Canada
| | - Kim M. Baines
- Department of Chemistry, The University of Western Ontario, 1151 Richmond Street North, London, ON N6A 5B7, Canada
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Baines K. Preface for the Special Issue dedicated to the 14th International Conference on the Coordination and Organometallic Chemistry of Germanium, Tin and Lead (ICCOC-GTL 2013). CAN J CHEM 2014. [DOI: 10.1139/cjc-2014-0169] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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