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Unusual Kinetics Induced by Ligands in Rhodium(III)-Catalyzed Dehydrogenative Olefination Reactions. J Org Chem 2023. [PMID: 37987772 DOI: 10.1021/acs.joc.3c01300] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2023]
Abstract
In this study, we investigate the effects of ligands on C-H activation during rhodium(III)-catalyzed C-H bond olefination reactions using well-defined [CpXRhIII] catalytic systems with three representative CpX (Cp (η5-C5H5), CpCF3 (η5-C5Me4CF3), and Cp* (η5-C5Me5)) ligands. Our results demonstrate that C-H activation as the rate-limiting step is significantly influenced by the steric properties of the CpX ligands. Moreover, we observe a dramatic acceleration of the simple [CpRhIII]-catalyzed C-H olefination reaction with acid coproducts such as HOAc, implying an autocatalytic C-H activation process.
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Well-Defined Rhodium Diphenylphosphine Oxide Complexes Relevant to Rh(III)-Catalyzed Aryl C–H Phosphorylation. Organometallics 2022. [DOI: 10.1021/acs.organomet.2c00478] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Cyclometalated Platinum(II) Metallomesogens Based on Half-Disc-Shaped β-Diketonate Ligands with Hexacatenar: Crystal Structures, Mesophase Properties, and Semiconductor Devices. Inorg Chem 2022; 61:11702-11714. [PMID: 35848492 DOI: 10.1021/acs.inorgchem.2c01327] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A series of new half-disc-shaped platinum(II) complexes [Pt(ppy)(ALn-6OCnH2n+1)] (Pt-An), [Pt(ppyF)(ALn-6OCnH2n+1)] (Pt-Bn), and [Pt(ppyCF3)(ALn-6OCnH2n+1)] (Pt-Cn) (ALn-6OCnH2n+1 = 1,3-bis(3,4,5-trialkoxyphenyl)propane-1,3-dionato; n = 1, 6, 12) with concise structures have been designed and synthesized, in which 2-phenylpyridine (ppy) derivatives were used as cyclometalated ligands and hexacatenar β-diketonate derivatives ALn-6OCnH2n+1 as auxiliary ligands. The single-crystal data of the methoxy diketonate analogues Pt-A1, Pt-B1, and Pt-C1 indicate that they all display excellent square planarity. These platinum(II) complexes show a certain emission tunability (ranging from λ = 506-535 nm) by the introduction of fluorine or trifluoromethyl into ppy. Thermal studies reveal that the fluorine-substituted complexes are liquid crystals but the trifluoromethyl-substituted complexes are not. The platinum(II) complexes Pt-A12, Pt-B6, and Pt-B12 can form a hexagonal columnar mesophase via intermolecular π-π interactions. In addition, compared to the reported platinum(II) metallomesogens, Pt-A12 and Pt-B12 exhibit improved ambipolar carrier mobility behaviors in semiconductor devices at the liquid crystal states.
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Synthesis and Characterization of Rhena[10]annulynes. Inorg Chem Front 2022. [DOI: 10.1039/d2qi00463a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Most of the reported metallacycles were limited to small cyclic complexes that contain six-membered or smaller rings. Larger-membered metallacycles are still rare and mainly focus on the dimetallacycles. Herein, we...
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Trisulfur radical anion-triggered stitching thienannulation: rapid access to largely π-extended thienoacenes. Chem Sci 2019; 11:1503-1509. [PMID: 34084379 PMCID: PMC8148024 DOI: 10.1039/c9sc05332h] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2019] [Accepted: 12/19/2019] [Indexed: 01/05/2023] Open
Abstract
Largely π-extended rylene diimide-fused thienoacenes, a new family of fully fused electron donor-acceptor (D-A) molecules, have been readily synthesized by a novel trisulfur radical anion (S3˙-)-triggered stitching thienannulation strategy. The ladder-type fused thiophene cores are constructed in a stitching manner through multiple carbon-sulfur bond formation between acetylenic rylene dyes and S3˙-. A detailed mechanistic study of these stitching thienannulations unveiled the multiple reactivities of S3˙-. Physical properties of the newly formed D-A, A-D-A, and D-A-D type thienoacenes have also been investigated, which revealed their precisely controllable electronic properties.
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Scalable Rhodium(III)-Catalyzed Aryl C-H Phosphorylation Enabled by Anodic Oxidation Induced Reductive Elimination. Angew Chem Int Ed Engl 2019; 58:16770-16774. [PMID: 31464027 DOI: 10.1002/anie.201909951] [Citation(s) in RCA: 91] [Impact Index Per Article: 18.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2019] [Indexed: 01/22/2023]
Abstract
Transition metal catalyzed C-H phosphorylation remains an unsolved challenge. Reported methods are generally limited in scope and require stoichiometric silver salts as oxidants. Reported here is an electrochemically driven RhIII -catalyzed aryl C-H phosphorylation reaction that proceeds through H2 evolution, obviating the need for stoichiometric metal oxidants. The method is compatible with a variety of aryl C-H and P-H coupling partners and particularly useful for synthesizing triarylphosphine oxides from diarylphosphine oxides, which are often difficult coupling partners for transition metal catalyzed C-H phosphorylation reactions. Experimental results suggest that the mechanism responsible for the C-P bond formation involves an oxidation-induced reductive elimination process.
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Dual Effects of Cyclopentadienyl Ligands on Rh(III)-Catalyzed Dehydrogenative Arylation of Electron-Rich Alkenes. ACS Catal 2018. [DOI: 10.1021/acscatal.8b01753] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Efficient endo
Cycloisomerization of Terminal Alkynols Catalyzed by a New Ruthenium Complex with 8-(Diphenylphosphino)quinoline Ligand and Mechanistic Investigation. Chemistry 2018; 24:1606-1618. [DOI: 10.1002/chem.201703971] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2017] [Indexed: 11/11/2022]
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Rh(iii)-Catalyzed regio- and stereoselective bisindolylation of vinyl acetate: an efficient approach toward (E)-1,2-bis(2-indolyl)ethenes. Org Chem Front 2018. [DOI: 10.1039/c7qo01041a] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An efficient Rh(iii)-catalyzed regio- and stereoselective cross-coupling between vinyl acetate andN-(2-pyridiyl)indoles providing a series of (E)-2,2′-bis(indolyl)ethenes has been developed.
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Regioselective Direct C3-Phosphorylation ofN-Sulfonylindoles under Mild Oxidative Conditions. Adv Synth Catal 2017. [DOI: 10.1002/adsc.201601204] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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Rhodium-Catalyzed β-Selective Oxidative Heck-Type Coupling of Vinyl Acetate via C–H Activation. Org Lett 2016; 18:6356-6359. [DOI: 10.1021/acs.orglett.6b03244] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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13
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Rhodium-Catalyzed/Copper-Mediated Selective C2 Alkynylation of Indoles and C1 Alkynylation of Carbazoles withγ-Substitutedtert-Propargyl Alcohols. ChemCatChem 2016. [DOI: 10.1002/cctc.201600218] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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Synthesis of α-Aminonaphthalenes via Copper-Catalyzed Aminobenzannulation of (o-Alkynyl)arylketones with Amines. J Org Chem 2016; 81:1696-703. [DOI: 10.1021/acs.joc.5b02340] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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Construction of Isoquinolin-1(2H)-ones by Copper-Catalyzed Tandem Reactions of 2-(1-Alkynyl)benzaldimines with Water. European J Org Chem 2015. [DOI: 10.1002/ejoc.201500908] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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Half-Sandwich B-Oxy Boratabenzene Ruthenium Complexes: Synthesis, Characterization, and Reactivity of (η6-C5H5BOR)RuCl(PPh3)2 (R = Et, Me). Organometallics 2015. [DOI: 10.1021/acs.organomet.5b00319] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Highly Active Gold(I)–Silver(I) Oxo Cluster Activating sp3C–H Bonds of Methyl Ketones under Mild Conditions. J Am Chem Soc 2015; 137:5520-5. [DOI: 10.1021/jacs.5b01713] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Silver-mediated direct phosphorylation of benzothiazoles and thiazoles with diarylphosphine oxides. Chem Commun (Camb) 2015; 51:3450-3. [DOI: 10.1039/c4cc10017d] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
A AgNO3-mediated, efficient phosphorylation of thiazole rings with Ar2(O)PH was developed, which may produce a convenient route to the synthesis of various novel P,N-ligands.
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Correction: Silver-mediated direct phosphorylation of benzothiazoles and thiazoles with diarylphosphine oxides. Chem Commun (Camb) 2015; 51:16871. [DOI: 10.1039/c5cc90492g] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Correction for ‘Silver-mediated direct phosphorylation of benzothiazoles and thiazoles with diarylphosphine oxides’ by Hui-Jun Zhang et al., Chem. Commun., 2015, 51, 3450–3453.
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Rh/Cu-catalyzed multiple C–H, C–C, and C–N bond cleavage: facile synthesis of pyrido[2,1-a]indoles from 1-(pyridin-2-yl)-1H-indoles and γ-substituted propargyl alcohols. Chem Commun (Camb) 2015; 51:6777-80. [DOI: 10.1039/c5cc01412c] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The Rh/Cu-catalyzed synthesis of pyrido[2,1-a]indoles from 1-(pyridin-2-yl)-1H-indoles and γ-substituted propargyl alcohols involving multiple C–H, C–C, and C–N bond cleavage and construction is presented.
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Rh(III)-Catalyzed Oxidative Coupling of Benzoic Acids with Geminal-Substituted Vinyl Acetates: Synthesis of 3-Substituted Isocoumarins. J Org Chem 2014; 80:620-7. [DOI: 10.1021/jo502231y] [Citation(s) in RCA: 91] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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Copper-catalyzed solvent-free redox condensation of benzothiazoles with aldehydes or benzylic alcohols. Tetrahedron Lett 2014. [DOI: 10.1016/j.tetlet.2014.01.120] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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Synthesis and Organometallic Properties of Several Osmium Alkenylcarbyne Complexes. CHINESE J ORG CHEM 2013. [DOI: 10.6023/cjoc201305046] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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A half-sandwich 1,2-azaborolyl ruthenium complex: synthesis, characterization, and evaluation of its catalytic activities. Dalton Trans 2013; 42:11976-80. [DOI: 10.1039/c3dt51177d] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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A TITANIUM(IV) DIMER COMPLEX CONTAINING TRLS(2-MERCAPTOPHENOLATO)TITANIUM(IV) FRAGMENTS LINKED BY SODIUM IONS. SYNTHESIS, STRUCTURE AND CHARACTERIZATION OF (Et4N)2[Ti(mp)3Na(MeOH)2]2 (H2mp = 2-MERCAPTOPHENOL). J COORD CHEM 2006. [DOI: 10.1080/00958979708045276] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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31
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Chemistry ofo-Mercaptophenolate: Syntheses, Structures, and Characterization of Titanium(IV) Complexes. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 1998. [DOI: 10.1246/bcsj.71.2339] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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32
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Reaction of transition metal thiolato units V. Formation of a binuclear mercury(II) complex with the dithiolato ligand i-mnt (1,1-dicyanoethylene-2,2-dithiolate). Polyhedron 1998. [DOI: 10.1016/s0277-5387(98)00014-x] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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33
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A novel network of bis(2-mercapto-3-pyridinol)oxovanadium(IV)_ based on hydrogenbond interactions: synthesis, structure and EPR spectroscopic properties. Polyhedron 1998. [DOI: 10.1016/s0277-5387(97)00295-7] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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CHIRAL PHOSPHINE LIGANDS DERIVED FROM SUGARS. 8. SYNTHESES OF GOLD(I) COMPLEXES CONTAINING CHIRAL SUGAR PHOSPHINES AND PYRIDINE-1-OXIDE-2-THIOLATE. J COORD CHEM 1997. [DOI: 10.1080/00958979708023571] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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