1
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Duneş G, Chapple PM, Kahlal S, Roisnel T, Carpentier JF, Saillard JY, Sarazin Y. Barium phosphidoboranes and related calcium complexes. Dalton Trans 2024; 53:6892-6905. [PMID: 38567539 DOI: 10.1039/d4dt00487f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/04/2024]
Abstract
The attempted synthesis of [{Carb}BaPPh2] (1) showed this barium-phosphide and its thf adducts, 1·thf and 1·(thf)2, to be unstable in solution. Our strategy to circumvent the fragility of these compounds involved the use of phosphinoboranes HPPh2·BH3 and HPPh2·B(C6F5)3 instead of HPPh2. This allowed for the synthesis of [{Carb}Ae{PPh2·BH3}] (Ae = Ba, 2; Ca, 3), [{Carb}Ca{(H3B)2PPh2}·(thf)] (4), [{Carb}Ba{PPh2·B(C6F5)3}] (5), [{Carb}Ba{O(B(C6F5)3)CH2CH2CH2CH2PPh2}·thf] (6), [Ba{O(B(C6F5)3)CH2CH2CH2CH2PPh2}2·(thf)1.5] (7) and [Ba{PPh2·B(C6F5)3}2·(thp)2] (8) that were characterised by multinuclear NMR spectroscopy (thp = tetrahydropyran). The molecular structures of 4, 6 and 8 were validated by X-ray diffraction crystallography, which revealed the presence of Ba⋯F stabilizing interactions (ca. 9 kcal mol-1) in the fluorine-containing compounds. Compounds 6 and 7 were obtained upon ring-opening of thf by their respective precursors, 5 and the in situ prepared [Ba{PPh2·B(C6F5)3}2]n. By contrast, thp does not undergo ring-opening under the same conditions but affords clean formation of 8. DFT analysis did not highlight any specific weakness of the Ba-P bond in 1·(thf)2. The instability of this compound is instead thought to stem from the high energy of its HOMO, which contains the non-conjugated P lone pair and features significant nucleophilic reactivity.
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Affiliation(s)
- Gabriel Duneş
- Univ Rennes, CNRS, ISCR-UMR 6226, 35000 Rennes, France.
| | | | - Samia Kahlal
- Univ Rennes, CNRS, ISCR-UMR 6226, 35000 Rennes, France.
| | | | | | | | - Yann Sarazin
- Univ Rennes, CNRS, ISCR-UMR 6226, 35000 Rennes, France.
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2
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Prieto-Pascual U, Rodríguez-Diéguez A, Freixa Z, Huertos MA. Tailor-Made Synthesis of Hydrosilanols, Hydrosiloxanes, and Silanediols Catalyzed by di-Silyl Rhodium(III) and Iridium(III) Complexes. Inorg Chem 2023; 62:3095-3105. [PMID: 36757389 PMCID: PMC10863934 DOI: 10.1021/acs.inorgchem.2c03953] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2022] [Indexed: 02/10/2023]
Abstract
Siloxanes and silanols containing Si-H units are important building blocks for the synthesis of functionalized siloxane materials, and their synthesis is a current challenge. Herein, we report the selective synthesis of hydrosilanols, hydrosiloxanes, and silanodiols depending on the nature of the catalysts and the silane used. Two neutral ({MCl[SiMe2(o-C6H4PPh2)]2}; M = Rh, Ir) and two cationic ({M[SiMe2(o-C6H4PPh2)]2(NCMe)}[BArF4]; M = Rh, Ir) have been synthesized and their catalytic behavior toward hydrolysis of secondary silanes has been described. Using the iridium complexes as precatalysts and diphenylsilane as a substrate, the product obtained is diphenylsilanediol. When rhodium complexes are used as precatalysts, it is possible to selectively obtain silanediol, hydrosilanol, and hydrosiloxane depending on the catalysts (neutral or cationic) and the silane substituents.
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Affiliation(s)
- Unai Prieto-Pascual
- Facultad
de Química, Universidad del País
Vasco (UPV/EHU), 20018 San Sebastián, Spain
| | | | - Zoraida Freixa
- Facultad
de Química, Universidad del País
Vasco (UPV/EHU), 20018 San Sebastián, Spain
- IKERBASQUE, Basque Foundation for Science, 48011 Bilbao, Spain
| | - Miguel A. Huertos
- Facultad
de Química, Universidad del País
Vasco (UPV/EHU), 20018 San Sebastián, Spain
- IKERBASQUE, Basque Foundation for Science, 48011 Bilbao, Spain
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3
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Gao H, Battley A, Leitao EM. The ultimate Lewis acid catalyst: using tris(pentafluorophenyl) borane to create bespoke siloxane architectures. Chem Commun (Camb) 2022; 58:7451-7465. [PMID: 35726789 DOI: 10.1039/d2cc00441k] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
The breadth of utility of a commercially available and stable strong Lewis acid catalyst, tris(pentafluorophenyl)borane, has been explored, highlighting its use towards a wide range of unique siloxane products and their corresponding applications. This article focuses on the variety of different outcomes that this impressive borane offers in controlled and selective manners by the variation of reaction conditions, precursor functionalities, reagent or catalyst loading, and the mechanistic considerations that contribute. With a predominant focus on the Piers-Rubinsztajn reaction and its modifications, tris(pentaflurophenyl)borane's utility is highlighted in the synthesis of linear, cyclic and macrocyclic siloxanes, aryl-/alkoxysiloxanes, and other bespoke products. The significance of the catalytic transformation within the field of siloxane chemistry is discussed alongside some of the challenges that arise from using the borane catalyst.
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Affiliation(s)
- Hetian Gao
- School of Chemical Sciences, University of Auckland, Private Bag, 92019, Auckland, 1142, New Zealand. .,The MacDiarmid Institute for Advanced Materials and Nanotechnology, New Zealand
| | - Andrew Battley
- School of Chemical Sciences, University of Auckland, Private Bag, 92019, Auckland, 1142, New Zealand.
| | - Erin M Leitao
- School of Chemical Sciences, University of Auckland, Private Bag, 92019, Auckland, 1142, New Zealand. .,The MacDiarmid Institute for Advanced Materials and Nanotechnology, New Zealand
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4
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Kuciński K, Stachowiak-Dłużyńska H, Hreczycho G. Catalytic silylation of O–nucleophiles via Si–H or Si–C bond cleavage: A route to silyl ethers, silanols and siloxanes. Coord Chem Rev 2022. [DOI: 10.1016/j.ccr.2022.214456] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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5
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Kuciński K, Stachowiak H, Lewandowski D, Gruszczyński M, Lampasiak P, Hreczycho G. A review of the R3Si–NH–SiR3–type disilazanes: From synthesis to applications. J Organomet Chem 2022. [DOI: 10.1016/j.jorganchem.2021.122127] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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6
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Roy MMD, Omaña AA, Wilson ASS, Hill MS, Aldridge S, Rivard E. Molecular Main Group Metal Hydrides. Chem Rev 2021; 121:12784-12965. [PMID: 34450005 DOI: 10.1021/acs.chemrev.1c00278] [Citation(s) in RCA: 122] [Impact Index Per Article: 40.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
This review serves to document advances in the synthesis, versatile bonding, and reactivity of molecular main group metal hydrides within Groups 1, 2, and 12-16. Particular attention will be given to the emerging use of said hydrides in the rapidly expanding field of Main Group element-mediated catalysis. While this review is comprehensive in nature, focus will be given to research appearing in the open literature since 2001.
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Affiliation(s)
- Matthew M D Roy
- Inorganic Chemistry Laboratory, Department of Chemistry, University of Oxford, South Parks Road, Oxford OX1 3QR, United Kingdom
| | - Alvaro A Omaña
- Department of Chemistry, University of Alberta, 11227 Saskatchewan Drive, Edmonton, Alberta T6G 2G2, Canada
| | - Andrew S S Wilson
- Department of Chemistry, University of Bath, Avon BA2 7AY, United Kingdom
| | - Michael S Hill
- Department of Chemistry, University of Bath, Avon BA2 7AY, United Kingdom
| | - Simon Aldridge
- Inorganic Chemistry Laboratory, Department of Chemistry, University of Oxford, South Parks Road, Oxford OX1 3QR, United Kingdom
| | - Eric Rivard
- Department of Chemistry, University of Alberta, 11227 Saskatchewan Drive, Edmonton, Alberta T6G 2G2, Canada
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7
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Le Coz E, Hammoud J, Roisnel T, Cordier M, Dorcet V, Kahlal S, Carpentier JF, Saillard JY, Sarazin Y. Bonding in Barium Boryloxides, Siloxides, Phenoxides and Silazides: A Comparison with the Lighter Alkaline Earths. Chemistry 2021; 27:11966-11982. [PMID: 34121256 DOI: 10.1002/chem.202101687] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2021] [Indexed: 11/11/2022]
Abstract
Barium complexes ligated by bulky boryloxides [OBR2 ]- (where R=CH(SiMe3 )2 , 2,4,6-i Pr3 -C6 H2 or 2,4,6-(CF3 )3 -C6 H2 ), siloxide [OSi(SiMe3 )3 ]- , and/or phenoxide [O-2,6-Ph2 -C6 H3 ]- , have been prepared. A diversity of coordination patterns is observed in the solid state for both homoleptic and heteroleptic complexes, with coordination numbers ranging between 2 and 4. The identity of the bridging ligand in heteroleptic dimers [Ba(μ2 -X1 )(X2 )]2 depends largely on the given pair of ligands X1 and X2 . Experimentally, the propensity to fill the bridging position increases according to [OB{CH(SiMe3 )2 }2 )]- <[N(SiMe3 )2 ]- <[OSi(SiMe3 )3 ]- <[O(2,6-Ph2 -C6 H3 )]- <[OB(2,4,6-i Pr3 -C6 H2 )2 ]- . This trend is the overall expression of 3 properties: steric constraints, electronic density and σ- and π-donating capability of the negatively charged atom, and ability to generate Ba ⋅ ⋅ ⋅ F, Ba ⋅ ⋅ ⋅ C(π) or Ba ⋅ ⋅ ⋅ H-C secondary interactions. The comparison of the structural motifs in the complexes [Ae{μ2 -N(SiMe3 )2 }(OB{CH(SiMe3 )2 }2 )]2 (Ae = Mg, Ca, Sr and Ba) suggest that these observations may be extended to all alkaline earths. DFT calculations highlight the largely prevailing ionic character of ligand-Ae bonding in all compounds. The ionic character of the Ae-ligand bond encourages bridging coordination, whereas the number of bridging ligands is controlled by steric factors. DFT computations also indicate that in [Ba(μ2 -X1 )(X2 )]2 heteroleptic dimers, ligand predilection for bridging vs. terminal positions is dictated by the ability to establish secondary interactions between the metals and the ligands.
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Affiliation(s)
- Erwann Le Coz
- Univ Rennes, CNRS ISCR, Institut des Sciences Chimiques de Rennes)-UMR 6226, 35000, Rennes, France
| | - Joanna Hammoud
- Univ Rennes, CNRS ISCR, Institut des Sciences Chimiques de Rennes)-UMR 6226, 35000, Rennes, France
| | - Thierry Roisnel
- Univ Rennes, CNRS ISCR, Institut des Sciences Chimiques de Rennes)-UMR 6226, 35000, Rennes, France
| | - Marie Cordier
- Univ Rennes, CNRS ISCR, Institut des Sciences Chimiques de Rennes)-UMR 6226, 35000, Rennes, France
| | - Vincent Dorcet
- Univ Rennes, CNRS ISCR, Institut des Sciences Chimiques de Rennes)-UMR 6226, 35000, Rennes, France
| | - Samia Kahlal
- Univ Rennes, CNRS ISCR, Institut des Sciences Chimiques de Rennes)-UMR 6226, 35000, Rennes, France
| | - Jean-François Carpentier
- Univ Rennes, CNRS ISCR, Institut des Sciences Chimiques de Rennes)-UMR 6226, 35000, Rennes, France
| | - Jean-Yves Saillard
- Univ Rennes, CNRS ISCR, Institut des Sciences Chimiques de Rennes)-UMR 6226, 35000, Rennes, France
| | - Yann Sarazin
- Univ Rennes, CNRS ISCR, Institut des Sciences Chimiques de Rennes)-UMR 6226, 35000, Rennes, France
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8
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Morris LJ, Rajabi NA, Mahon MF, Manners I, McMullin CL, Hill MS. Synthesis and reactivity of alkaline-earth stannanide complexes by hydride-mediated distannane metathesis and organostannane dehydrogenation. Dalton Trans 2020; 49:10523-10534. [PMID: 32691789 DOI: 10.1039/d0dt02406f] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
The synthesis of heteroleptic complexes with calcium- and magnesium-tin bonds is described. The dimeric β-diketiminato calcium hydride complex, [(BDI)Ca(μ-H)]2 (ICa) reacts with Ph3Sn-SnPh3 to provide the previously reported μ2-H bridged calcium stannanide dimer, [(BDI)2Ca2(SnPh3)(μ-H)] (3). Computational assessment of this reaction supports a mechanism involving a hypervalent stannate intermediate formed by nucleophilic attack of hydride on the distannane. Monomeric calcium stannanides, [(BDI)Ca(SnPh3)·OPPh3] (8·OPPh3) and [(BDI)Ca(SnPh3)·TMTHF] (8·TMTHF, TMTHF = 2,2,5,5-tetramethyltetrahydrofuran) were obtained from ICa and Ph3Sn-SnPh3, after addition OPPh3 or TMTHF. Both complexes were also synthesised by deprotonation of Ph3SnH by ICa in the presence of the Lewis base. The calcium and magnesium THF adducts, [(BDI)Ca(SnPh3)·THF2] (8·THF2) and [(BDI)Mg(SnPh3)·THF] (9·THF), were similarly prepared from [(BDI)Ca(μ-H)·(THF)]2 (ICa·THF2) or [(BDI)Mg(μ-H)]2 (IMg) and Ph3SnH. An excess of THF or TMTHF was essential in order to obtain 8·TMTHF, 8·THF2 and 9·THF in high yields whilst avoiding redistribution of the phenyl-tin ligand. The resulting Ae-Sn complexes were used as a source of [Ph3Sn]- in salt metathesis, to provide the known tristannane Ph3Sn-Sn(t-Bu)2-SnPh3 (11). Nucleophilic addition or insertion with N,N'-di-iso-propylcarbodiimide provided the stannyl-amidinate complexes, [(BDI)Mg{(iPrN)2CSnPh3}] (12) and [(BDI)Ca{(iPrN)2CSnPh3}·L] (13·TMTHF, 13·THF, L = TMTHF, THF). The reactions and products were monitored and characterised by multinuclear NMR spectroscopy, whilst for compounds 8, 9, 12, and 13·THF, the X-ray crystal structures are presented and discussed.
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Affiliation(s)
- Louis J Morris
- Department of Chemistry, University of Bath, Claverton Down, Bath, BA2 7AY, UK.
| | - Nasir A Rajabi
- Department of Chemistry, University of Bath, Claverton Down, Bath, BA2 7AY, UK.
| | - Mary F Mahon
- Department of Chemistry, University of Bath, Claverton Down, Bath, BA2 7AY, UK.
| | - Ian Manners
- Department of Chemistry, University of Victoria, Victoria BC V8P 5C2, Canada
| | - Claire L McMullin
- Department of Chemistry, University of Bath, Claverton Down, Bath, BA2 7AY, UK.
| | - Michael S Hill
- Department of Chemistry, University of Bath, Claverton Down, Bath, BA2 7AY, UK.
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9
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Affiliation(s)
| | - Yann Sarazin
- CNRS, ISCR‐UMR 6226 Univ Rennes 35000 Rennes France
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10
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Kuciński K, Stachowiak H, Hreczycho G. Silylation of Alcohols, Phenols, and Silanols with Alkynylsilanes - an Efficient Route to Silyl Ethers and Unsymmetrical Siloxanes. European J Org Chem 2020. [DOI: 10.1002/ejoc.202000573] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Krzysztof Kuciński
- Faculty of Chemistry; Adam Mickiewicz University in Poznań; Ul. Uniwersytetu Poznańskiego 8 61-614 Poznań Poland
| | - Hanna Stachowiak
- Faculty of Chemistry; Adam Mickiewicz University in Poznań; Ul. Uniwersytetu Poznańskiego 8 61-614 Poznań Poland
| | - Grzegorz Hreczycho
- Faculty of Chemistry; Adam Mickiewicz University in Poznań; Ul. Uniwersytetu Poznańskiego 8 61-614 Poznań Poland
- Center for Advanced Technologies; Adam Mickiewicz University; Ul. Uniwersytetu Poznańskiego 10 61-614 Poznań Poland
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11
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Rabanzo-Castillo KM, Kumar VB, Söhnel T, Leitao EM. Catalytic Synthesis of Oligosiloxanes Mediated by an Air Stable Catalyst, (C 6F 5) 3B(OH 2). Front Chem 2020; 8:477. [PMID: 32656180 PMCID: PMC7325218 DOI: 10.3389/fchem.2020.00477] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2020] [Accepted: 05/08/2020] [Indexed: 12/29/2022] Open
Abstract
The utility of (C6F5)3B(OH2) as catalyst for the simple and environmentally benign synthesis of oligosiloxanes directly from hydrosilanes, is reported. This protocol offers several advantages compared to other methods of synthesizing siloxanes, such as mild reaction conditions, low catalyst loading, and a short reaction time with high yields and purity. The considerable H2O-tolerance of (C6F5)3B(OH2) promoted a catalytic route to disiloxanes which showed >99% conversion of three tertiary silanes, Et3SiH, PhMe2SiH, and Ph3SiH. Preliminary data on the synthesis of unsymmetrical disiloxanes (Si-O-Si') suggests that by modifying the reaction conditions and/or using a 1:1 combination of silane to silanol the cross-product can be favored. Intramolecular reactions of disilyl compounds with catalytic (C6F5)3B(OH2) led to the formation of novel bridged siloxanes, containing a Si-O-Si linkage within a cyclic structure, as the major product. Moreover, the reaction conditions enabled recovery and recycling of the catalyst. The catalyst was re-used 5 times and demonstrated excellent conversion for each substrate at 1.0 mol% catalyst loading. This seemingly simple reaction has a rather complicated mechanism. With the hydrosilane (R3SiH) as the sole starting material, the fate of the reaction largely depends on the creation of silanol (R3SiOH) from R3SiH as these two undergo dehydrocoupling to yield a disiloxane product. Generation of the silanol is based on a modified Piers-Rubinsztajn reaction. Once the silanol has been produced, the mechanism involves a series of competitive reactions with multiple catalytically relevant species involving water, silane, and silanol interacting with the Lewis acid and the favored reaction cycle depends on the concentration of various species in solution.
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Affiliation(s)
- Kristel M Rabanzo-Castillo
- School of Chemical Sciences, University of Auckland, Auckland, New Zealand.,The MacDiarmid Institute for Advanced Materials and Nanotechnology, Auckland, New Zealand
| | - Vipin B Kumar
- School of Chemical Sciences, University of Auckland, Auckland, New Zealand.,The MacDiarmid Institute for Advanced Materials and Nanotechnology, Auckland, New Zealand
| | - Tilo Söhnel
- School of Chemical Sciences, University of Auckland, Auckland, New Zealand.,The MacDiarmid Institute for Advanced Materials and Nanotechnology, Auckland, New Zealand
| | - Erin M Leitao
- School of Chemical Sciences, University of Auckland, Auckland, New Zealand.,The MacDiarmid Institute for Advanced Materials and Nanotechnology, Auckland, New Zealand
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12
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Morris LJ, Hill MS, Mahon MF, Manners I, S McMenamy F, Whittell GR. Heavier Alkaline-Earth Catalyzed Dehydrocoupling of Silanes and Alcohols for the Synthesis of Metallo-Polysilylethers. Chemistry 2020; 26:2954-2966. [PMID: 31899846 DOI: 10.1002/chem.201905313] [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: 11/24/2019] [Indexed: 11/07/2022]
Abstract
The dehydrocoupling of silanes and alcohols mediated by heavier alkaline-earth catalysts, [Ae{N(SiMe3 )2 }2 ⋅(THF)2 ] (I-III) and [Ae{CH(SiMe3 )2 }2 ⋅(THF)2 ], (IV-VI) (Ae=Ca, Sr, Ba) is described. Primary, secondary, and tertiary alcohols were coupled to phenylsilane or diphenylsilane, whereas tertiary silanes are less tolerant towards bulky substrates. Some control over reaction selectivity towards mono-, di-, or tri-substituted silylether products was achieved through alteration of reaction stoichiometry, conditions, and catalyst. The ferrocenyl silylether, FeCp(C5 H4 SiPh(OBn)2 ) (2), was prepared and fully characterized from the ferrocenylsilane, FeCp(C5 H4 SiPhH2 ) (1), and benzyl alcohol using barium catalysis. Stoichiometric experiments suggested a reaction manifold involving the formation of Ae-alkoxide and hydride species, and a series of dimeric Ae-alkoxides [(Ph3 CO)Ae(μ2 -OCPh3 )Ae(THF)] (3 a-c, Ae=Ca, Sr, Ba) were isolated and fully characterized. Mechanistic experiments suggested a complex reaction mechanism involving dimeric or polynuclear active species, whose kinetics are highly dependent on variables such as the identity and concentration of the precatalyst, silane, and alcohol. Turnover frequencies increase on descending Group 2 of the periodic table, with the barium precatalyst III displaying an apparent first-order dependence in both silane and alcohol, and an optimum catalyst loading of 3 mol % Ba, above which activity decreases. With precatalyst III in THF, ferrocene-containing poly- and oligosilylethers with ferrocene pendent to- (P1-P4) or as a constituent (P5, P6) of the main polymer chain were prepared from 1 or Fe(C5 H4 SiPhH2 )2 (4) with diols 1,4-(HOCH2 )2 -(C6 H4 ) and 1,4-(CH(CH3 )OH)2 -(C6 H4 ), respectively. The resultant materials were characterized by NMR spectroscopy, gel permeation chromatography (GPC) and DOSY NMR spectroscopy, with estimated molecular weights in excess of 20,000 Da for P1 and P4. The iron centers display reversible redox behavior and thermal analysis showed P1 and P5 to be promising precursors to magnetic ceramic materials.
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Affiliation(s)
- Louis J Morris
- Department of Chemistry, University of Bath, Claverton Down, Bath, BA2 7AY, UK.,School of Chemistry, University of Bristol, Cantock's Close, Bristol, BS8 1TS, UK
| | - Michael S Hill
- Department of Chemistry, University of Bath, Claverton Down, Bath, BA2 7AY, UK
| | - Mary F Mahon
- Department of Chemistry, University of Bath, Claverton Down, Bath, BA2 7AY, UK
| | - Ian Manners
- School of Chemistry, University of Bristol, Cantock's Close, Bristol, BS8 1TS, UK.,Department of Chemistry, University of Victoria, Victoria, BC V8P 5C2, Canada
| | - Fred S McMenamy
- Department of Chemistry, University of Bath, Claverton Down, Bath, BA2 7AY, UK
| | - George R Whittell
- School of Chemistry, University of Bristol, Cantock's Close, Bristol, BS8 1TS, UK
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13
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Kuciński K, Stachowiak H, Hreczycho G. Silylation of silanols with hydrosilanes via main-group catalysis: the synthesis of unsymmetrical siloxanes and hydrosiloxanes. Inorg Chem Front 2020. [DOI: 10.1039/d0qi00904k] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Apart from some specific synthetic solutions, a dehydrogenative coupling of silanols with hydrosilanes seems to be the most atom-economical and practical method for the formation of unsymmetrical siloxanes.
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Affiliation(s)
- Krzysztof Kuciński
- Faculty of Chemistry
- Adam Mickiewicz University in Poznań
- 61-614 Poznań
- Poland
| | - Hanna Stachowiak
- Faculty of Chemistry
- Adam Mickiewicz University in Poznań
- 61-614 Poznań
- Poland
| | - Grzegorz Hreczycho
- Faculty of Chemistry
- Adam Mickiewicz University in Poznań
- 61-614 Poznań
- Poland
- Center for Advanced Technologies
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14
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Someşan A, Le Coz E, Raţ CI, Dorcet V, Roisnel T, Silvestru C, Sarazin Y. Lead(II) Siloxides. Chemistry 2019; 25:16236-16240. [DOI: 10.1002/chem.201904713] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2019] [Indexed: 11/09/2022]
Affiliation(s)
- Adrian‐Alexandru Someşan
- Supramolecular Organic and Organometallic Chemistry CentreChemistry DepartmentFaculty of Chemistry and Chemical EngineeringBabeş-Bolyai University Cluj-Napoca 400028 Romania
| | - Erwann Le Coz
- Univ Rennes, CNRSISCR (Institut des Sciences Chimiques de Rennes) - UMR 6226 35000 Rennes France
| | - Ciprian Ionuţ Raţ
- Supramolecular Organic and Organometallic Chemistry CentreChemistry DepartmentFaculty of Chemistry and Chemical EngineeringBabeş-Bolyai University Cluj-Napoca 400028 Romania
| | - Vincent Dorcet
- Univ Rennes, CNRSISCR (Institut des Sciences Chimiques de Rennes) - UMR 6226 35000 Rennes France
| | - Thierry Roisnel
- Univ Rennes, CNRSISCR (Institut des Sciences Chimiques de Rennes) - UMR 6226 35000 Rennes France
| | - Cristian Silvestru
- Supramolecular Organic and Organometallic Chemistry CentreChemistry DepartmentFaculty of Chemistry and Chemical EngineeringBabeş-Bolyai University Cluj-Napoca 400028 Romania
| | - Yann Sarazin
- Univ Rennes, CNRSISCR (Institut des Sciences Chimiques de Rennes) - UMR 6226 35000 Rennes France
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