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Tra BYE, Molino A, Hollister KK, Sarkar SK, Dickie DA, Wilson DJD, Gilliard RJ. Mono- and Bis-Phosphine Promoted Incorporation of Boron, Nitrogen, and Phosphorus into Heterocycles via Staudinger Reactions of Borafluorene Azides. Inorg Chem 2024; 63:11604-11615. [PMID: 38864676 DOI: 10.1021/acs.inorgchem.4c00854] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/13/2024]
Abstract
We report the synthesis and characterization of a series of BNP-incorporated borafluorenate heterocycles formed via thermolysis reactions of pyridylphosphine and bis(phosphine)-coordinated borafluorene azides. The use of diphenyl-2-pyridylphosphine (PyPh2P), trans-1,2-bis(diphenylphosphino)ethylene (Ph2P(H)C═C(H)PPh2), and bis(diphenylphosphino)methane (Ph2PC(H2)PPh2) as stabilizing ligands resulted in Staudinger reactions to form complex heterocycles with four- (BN2P, BNPC, P2N2) and five-membered (BNP2C and BN2PC) rings, which were successfully isolated and fully characterized by multinuclear NMR and X-ray crystallography. However, when bis(diphenylphosphino)benzene (Ph2P-Ph-PPh2) was used as the ligand in a reaction with 9-bromo-9-borafluorene (BF-Br), due to the close proximity of the donor P atoms, the diphosphine-stabilized borafluoronium ion with an unusual borafluorene dibromide anion was formed. Reaction of the borafluoronium ion with trimethylsilyl azide left the cation intact, and the dibromide anion was substituted by a diazide. Density functional theory calculations were used to provide mechanistic insight into the formation of these new boracyclic compounds. This work highlights a new method in which donor phosphine ligands may be used to promote dimerization, cyclization, and ring contraction reactions to produce boracycles via Staudinger reactions.
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Affiliation(s)
- Bi Youan E Tra
- Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Building 18-596, Cambridge, Massachusetts 02139-4307, United States
| | - Andrew Molino
- Department of Chemistry, La Trobe Institute for Molecular Science, La Trobe University, Melbourne 3086, Victoria, Australia
| | - Kimberly K Hollister
- Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Building 18-596, Cambridge, Massachusetts 02139-4307, United States
| | - Samir Kumar Sarkar
- Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Building 18-596, Cambridge, Massachusetts 02139-4307, United States
| | - Diane A Dickie
- Department of Chemistry, University of Virginia, Charlottesville, Virginia 22904, United States
| | - David J D Wilson
- Department of Chemistry, La Trobe Institute for Molecular Science, La Trobe University, Melbourne 3086, Victoria, Australia
| | - Robert J Gilliard
- Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Building 18-596, Cambridge, Massachusetts 02139-4307, United States
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2
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Bauder C, Sémeril D. Optically Pure Calixarenyl Phosphine via Stereospecific Alkylation on Evans' Oxazolidinone Moiety. Molecules 2024; 29:1156. [PMID: 38474667 DOI: 10.3390/molecules29051156] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2024] [Revised: 02/26/2024] [Accepted: 02/29/2024] [Indexed: 03/14/2024] Open
Abstract
A convenient protocol for the synthesis of 25,26,27-tribenzoyl-28-[((S)-1-diphenylphos- phanyl-propan-2-yl)oxy]-calix[4]arene via stereospecific methylation on Evans' oxazolidinone moiety was reported. According to the 13C NMR analysis of this phosphine, the calix[4]arene skeleton adopted a 1,3-alternate conformation. The latter conformation of the macrocycle and the (S)-chirality of the carbon atom bearing the methyl substituent were confirmed by a single-crystal X-ray diffraction study. After coordination of the phosphinated ligand to the dimeric [RuCl2(p-cymene)]2 organometallic precursor, the resulting arene-ruthenium complex was tested in the asymmetric reduction of acetophenone and alcohol was obtained with modest enantiomeric excess.
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Affiliation(s)
- Claude Bauder
- Synthèse Organométallique et Catalyse, UMR-CNRS 7177 Institut de Chimie de Strasbourg, Strasbourg University, 67008 Strasbourg, France
| | - David Sémeril
- Synthèse Organométallique et Catalyse, UMR-CNRS 7177 Institut de Chimie de Strasbourg, Strasbourg University, 67008 Strasbourg, France
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3
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Weigelt V, Vogl S, Schmidt J, Thomas A. A Triphenylphosphine-Based Microporous Polymer for a Wittig Reaction Cycle in the Solid State. Angew Chem Int Ed Engl 2023; 62:e202307818. [PMID: 37460443 DOI: 10.1002/anie.202307818] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2023] [Accepted: 07/14/2023] [Indexed: 08/24/2023]
Abstract
The Wittig reaction is a key step in industrial processes to synthesise large quantities of vitamin A and various other important chemicals that are used in daily life. This article presents a pathway to achieve the Wittig reaction in a solid network. A highly porous triphenylphosphine-based polymer was applied as a solid Wittig reagent that undergoes, in a multi-step cycle, in total six post-synthetic modifications. This allowed for regeneration of the solid Wittig reagent and reuse for the same reaction cycle. Of particular industrial relevance is that the newly developed material also enables a simple way of separating the product by filtration. Therefore, additional costly and difficult separation and purification steps are no longer needed.
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Affiliation(s)
- Vincent Weigelt
- Department of Chemistry/Functional Materials, Technische Universität Berlin, Hardenbergstraße 40, 10623, Berlin, Germany
| | - Sarah Vogl
- Department of Chemistry/Functional Materials, Technische Universität Berlin, Hardenbergstraße 40, 10623, Berlin, Germany
| | - Johannes Schmidt
- Department of Chemistry/Functional Materials, Technische Universität Berlin, Hardenbergstraße 40, 10623, Berlin, Germany
| | - Arne Thomas
- Department of Chemistry/Functional Materials, Technische Universität Berlin, Hardenbergstraße 40, 10623, Berlin, Germany
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4
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Yamada M, Goto M, Yamano M. Direct conversion of sec-phosphine oxides to sec-phosphine-boranes using BH3. Tetrahedron Lett 2021. [DOI: 10.1016/j.tetlet.2021.152837] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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5
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Wesalo JS, Deiters A. Fast phosphine-activated control of protein function using unnatural lysine analogues. Methods Enzymol 2020; 638:191-217. [PMID: 32416913 DOI: 10.1016/bs.mie.2020.02.020] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Effective, general methods for conditionally activating proteins in their native biological environments are highly useful for biological studies. Since phosphines and azides are not found in pro- and eukaryotic cells, the Staudinger reduction can function as an excellent small molecule-controlled switch for protein activation. This methodology involves site-specifically incorporating azidobenyl-lysine analogues into proteins in live cells. When placed at a crucial position, these unnatural side chains block protein function until a phosphine trigger is added. We discuss methods for expressing caged proteins in bacterial and mammalian cells in high yields, and activating the proteins with an optimized phosphine trigger. We also discuss important considerations for safe and effective synthesis of these molecules. This methodology was used to translocate proteins to the nucleus and to turn-on a protein post-translational modification (SUMOylation) in living cells.
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Affiliation(s)
- Joshua S Wesalo
- Department of Chemistry, University of Pittsburgh, Pittsburgh, PA, United States
| | - Alexander Deiters
- Department of Chemistry, University of Pittsburgh, Pittsburgh, PA, United States.
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6
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Škoch K, Vosáhlo P, Císařová I, Štěpnička P. Synthesis and characterisation of Pd(ii) and Au(i) complexes with mesoionic carbene ligands bearing phosphinoferrocene substituents and isomeric carbene moieites. Dalton Trans 2020; 49:1011-1021. [PMID: 31916562 DOI: 10.1039/c9dt04521j] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
While numerous functional ligands combining phosphine and imidazole-2-ylidene (or imidazolin-2-ylidene) donor moieties have already been reported, the chemistry of the corresponding functional mesoionic carbenes (MIC) derived from 1,2,3-triazoles remains nearly untapped. This contribution describes the synthesis of two isomeric series of triazolium salts bearing 1'-(diphenylphosphino)ferrocenyl substituents by [3 + 2] cycloaddition of a P-protected phosphinoferrocene alkyne with azides, or alternatively of a P-protected phosphinoferrocene azide with terminal alkynes, and by subsequent methylation. These salts were used to synthesize structurally unique Pd(ii) complexes featuring a P,C-chelating triazolylidene carbene ligands and Au(i)-MIC complexes with free phosphine groups. The latter were further utilised to prepare Pd(ii)Au(i) heterometallic complexes containing bridging ferrocene phosphino-carbenes as structurally flexible, donor-unsymmetric metalloligands. In addition, the reactivity of the newly prepared, P-protected phosphinoferrocene alkyne Ph2PfcC[triple bond, length as m-dash]CH·BH3 (fc = ferrocene-1,1'-diyl) was investigated, and representatives from all reported compound classes were structurally characterised.
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Affiliation(s)
- Karel Škoch
- Department of Inorganic Chemistry, Faculty of Science, Charles University, Hlavova 2030, 128 40 Prague, Czech Republic.
| | - Petr Vosáhlo
- Department of Inorganic Chemistry, Faculty of Science, Charles University, Hlavova 2030, 128 40 Prague, Czech Republic.
| | - Ivana Císařová
- Department of Inorganic Chemistry, Faculty of Science, Charles University, Hlavova 2030, 128 40 Prague, Czech Republic.
| | - Petr Štěpnička
- Department of Inorganic Chemistry, Faculty of Science, Charles University, Hlavova 2030, 128 40 Prague, Czech Republic.
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7
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Hood TM, Gyton MR, Chaplin AB. Synthesis and rhodium complexes of macrocyclic PNP and PONOP pincer ligands. Dalton Trans 2020; 49:2077-2086. [PMID: 31912067 DOI: 10.1039/c9dt04474d] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The synthesis of macrocyclic variants of commonly employed phosphine-based pincer ligands derived from lutidine (PNP-14) and 2,6-dihydroxypyridine (PONOP-14) is described, where the P-donors are trans-substituted with a tetradecamethylene linker. This was accomplished using an eight-step procedure involving borane protection, ring-closing olefin metathesis, chromatographic separation from the cis-substituted diastereomers, and borane deprotection. The rhodium coordination chemistry of these ligands has been explored, aided by the facile synthesis of 2,2'-biphenyl (biph) adducts [Rh(PNP-14)(biph)][BArF4] and [Rh(PONOP-14)(biph)][BArF4] (ArF = 3,5-(CF3)2C6H3). Subsequent hydrogenolysis enabled generation of dihydrogen, ethylene and carbonyl derivatives; notably the ν(CO) bands of the carbonyl complexes provide a means to compare the donor properties of the new pincer ligands with established acyclic congeners.
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Affiliation(s)
- Thomas M Hood
- Department of Chemistry, University of Warwick, Gibbet Hill Road, Coventry CV4 7AL, UK.
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Tay DWP, Nobbs JD, Romain C, White AJP, Aitipamula S, van Meurs M, Britovsek GJP. gem-Dialkyl Effect in Diphosphine Ligands: Synthesis, Coordination Behavior, and Application in Pd-Catalyzed Hydroformylation. ACS Catal 2019. [DOI: 10.1021/acscatal.9b03007] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Dillon W. P. Tay
- Department of Chemistry, Imperial College London, Molecular Sciences Research Hub, White City Campus, 80 Wood Lane, London W12 0BZ, United Kingdom
| | - James D. Nobbs
- Institute of Chemical and Engineering Sciences, Agency for Science, Technology & Research, Jurong Island 627833, Singapore
| | - Charles Romain
- Department of Chemistry, Imperial College London, Molecular Sciences Research Hub, White City Campus, 80 Wood Lane, London W12 0BZ, United Kingdom
| | - Andrew J. P. White
- Department of Chemistry, Imperial College London, Molecular Sciences Research Hub, White City Campus, 80 Wood Lane, London W12 0BZ, United Kingdom
| | - Srinivasulu Aitipamula
- Institute of Chemical and Engineering Sciences, Agency for Science, Technology & Research, Jurong Island 627833, Singapore
| | - Martin van Meurs
- Institute of Chemical and Engineering Sciences, Agency for Science, Technology & Research, Jurong Island 627833, Singapore
| | - George J. P. Britovsek
- Department of Chemistry, Imperial College London, Molecular Sciences Research Hub, White City Campus, 80 Wood Lane, London W12 0BZ, United Kingdom
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Radal L, Vosáhlo P, Roger J, Cattey H, Amardeil R, Císařová I, Štěpnička P, Pirio N, Hierso J. Highly Functionalized Brønsted Acidic/Lewis Basic Hybrid Ferrocene Ligands: Synthesis and Coordination Chemistry. Eur J Inorg Chem 2019. [DOI: 10.1002/ejic.201801378] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Léa Radal
- Institut de Chimie Moléculaire de l'Université de Bourgogne (ICMUB) UMR CNRS 6302 Université de Bourgogne Franche‐Comté (UBFC) 9 avenue Alain Savary 21078 Dijon France
| | - Petr Vosáhlo
- Department of Inorganic Chemistry Faculty of Science Charles University Hlavova 2030, 128 40 Prague Czech Republic
| | - Julien Roger
- Institut de Chimie Moléculaire de l'Université de Bourgogne (ICMUB) UMR CNRS 6302 Université de Bourgogne Franche‐Comté (UBFC) 9 avenue Alain Savary 21078 Dijon France
| | - Hélène Cattey
- Institut de Chimie Moléculaire de l'Université de Bourgogne (ICMUB) UMR CNRS 6302 Université de Bourgogne Franche‐Comté (UBFC) 9 avenue Alain Savary 21078 Dijon France
| | - Régine Amardeil
- Institut de Chimie Moléculaire de l'Université de Bourgogne (ICMUB) UMR CNRS 6302 Université de Bourgogne Franche‐Comté (UBFC) 9 avenue Alain Savary 21078 Dijon France
| | - Ivana Císařová
- Department of Inorganic Chemistry Faculty of Science Charles University Hlavova 2030, 128 40 Prague Czech Republic
| | - Petr Štěpnička
- Department of Inorganic Chemistry Faculty of Science Charles University Hlavova 2030, 128 40 Prague Czech Republic
| | - Nadine Pirio
- Institut de Chimie Moléculaire de l'Université de Bourgogne (ICMUB) UMR CNRS 6302 Université de Bourgogne Franche‐Comté (UBFC) 9 avenue Alain Savary 21078 Dijon France
| | - Jean‐Cyrille Hierso
- Institut de Chimie Moléculaire de l'Université de Bourgogne (ICMUB) UMR CNRS 6302 Université de Bourgogne Franche‐Comté (UBFC) 9 avenue Alain Savary 21078 Dijon France
- Institut Universitaire de France 103 Boulevard Saint Michel 75005 Paris Cedex France
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10
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Rong MK, Holtrop F, Slootweg JC, Lammertsma K. 1,3-P,N hybrid ligands in mononuclear coordination chemistry and homogeneous catalysis. Coord Chem Rev 2019. [DOI: 10.1016/j.ccr.2018.08.016] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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11
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Liu T, Qi X, Wang B, Jin Y, Yan C, Wang Y, Zhang Q. Rational Design and Facile Synthesis of Boranophosphate Ionic Liquids as Hypergolic Rocket Fuels. Chemistry 2018; 24:10201-10207. [PMID: 29756239 DOI: 10.1002/chem.201801593] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2018] [Revised: 05/08/2018] [Indexed: 01/24/2023]
Abstract
The design and synthesis of new hypergolic ionic liquids (HILs) as replacements for toxic hydrazine derivatives have been the focus of current academic research in the field of liquid bipropellant fuels. In most cases, however, the requirements of excellent ignition performances, good hydrolytic stabilities, and low synthetic costs are often contradictory, which makes the development of high-performance HILs an enormous challenge. Here, we show how a fuel-rich boranophosphate ion was rationally designed and used to synthesize a series of high-performance HILs with excellent comprehensive properties. In the design strategy, we introduced the {BH3 } moiety into the boranophosphate ion for improving the self-ignition property, whereas the complexation of boron and phosphite was used to improve the hydrolytic activity of the borohydride species. As a result, these boranophosphate HILs exhibited wide liquid operating ranges (>220 °C), high densities (1.00-1.10 g cm-3 ), good hydrolytic stabilities, and short ignition delay times (2.3-9.7 milliseconds) with white fuming nitric acid (WFNA) as the oxidizer. More importantly, these boranophosphate HILs could be readily prepared in high yields from commercial phosphite esters, avoiding complex and time-consuming synthetic routes. This work offers an effective strategy of designing boranophosphate HILs towards safer and greener hypergolic fuels for liquid bipropellant applications.
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Affiliation(s)
- Tianlin Liu
- Research Center of Energetic Material Genome Science, Institute of Chemical Materials, China Academy of Engineering Physics (CAEP), Mianyang, 621900, P.R. China
| | - Xiujuan Qi
- Sichuan Co-Innovation Center for New Energetic Materials, Southwest University of Science and Technology, Mianyang, 621900, P.R. China
| | - Binshen Wang
- Research Center of Energetic Material Genome Science, Institute of Chemical Materials, China Academy of Engineering Physics (CAEP), Mianyang, 621900, P.R. China
| | - Yunhe Jin
- Research Center of Energetic Material Genome Science, Institute of Chemical Materials, China Academy of Engineering Physics (CAEP), Mianyang, 621900, P.R. China
| | - Chao Yan
- Research Center of Energetic Material Genome Science, Institute of Chemical Materials, China Academy of Engineering Physics (CAEP), Mianyang, 621900, P.R. China
| | - Yi Wang
- Research Center of Energetic Material Genome Science, Institute of Chemical Materials, China Academy of Engineering Physics (CAEP), Mianyang, 621900, P.R. China
| | - Qinghua Zhang
- Research Center of Energetic Material Genome Science, Institute of Chemical Materials, China Academy of Engineering Physics (CAEP), Mianyang, 621900, P.R. China
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12
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Smith JN, Hook JM, Lucas NT. Superphenylphosphines: Nanographene-Based Ligands That Control Coordination Geometry and Drive Supramolecular Assembly. J Am Chem Soc 2018; 140:1131-1141. [PMID: 29253338 DOI: 10.1021/jacs.7b12251] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Tertiary phosphines remain widely utilized in synthesis, most notably as supporting ligands in metal complexes. A series of triarylphosphines bearing one to three hexa-peri-hexabenzocoronene (HBC) substituents has been prepared by an efficient divergent route. These "superphenylphosphines", P{HBC(t-Bu)5}nPh3-n (n = 1-3), form the palladium complexes PdCl2L2 and Pd2Cl4L2 where the isomer distribution in solution is dependent on the number of HBC substituents. The crystalline structures of five complexes all show intramolecular π-stacking between HBC-phosphines to form a supramolecular bidentate-like ligand that distorts the metal coordination geometry. When n = 2 or 3, the additional HBC substituents engage in intermolecular π-stacking to assemble the complexes into continuous ribbons or sheets. The phosphines adopt HBC's characteristics including strong optical absorption, green emission, and redox activity.
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Affiliation(s)
- Jordan N Smith
- MacDiarmid Institute for Advanced Materials and Nanotechnology, Department of Chemistry, University of Otago , Union Place, Dunedin 9016, New Zealand
| | - James M Hook
- Mark Wainwright Analytical Centre, University of New South Wales , Sydney, NSW 2052, Australia
| | - Nigel T Lucas
- MacDiarmid Institute for Advanced Materials and Nanotechnology, Department of Chemistry, University of Otago , Union Place, Dunedin 9016, New Zealand
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14
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Tanabe Y, Miyoshi K, Kirino Y. EFFECT OF LEWIS ACID/BASE ADDUCTS AS A SILANIZATION CATALYST IN RUBBER COMPOSITIONS CONTAINING SILICA. RUBBER CHEMISTRY AND TECHNOLOGY 2016. [DOI: 10.5254/rct.16.84836] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
ABSTRACT
Silica-filled rubber compositions with good physical properties after curing, like those containing mercaptosilane, often have problems with processability. So, balancing the curing properties and processability of the compositions to a high level is very important. Controlling the silanization process is considered to be one of the key factors in solving this problem. Therefore, this study has focused on the effective silanization by using Lewis acid/base adduct containing boron atoms as the silanization catalyst. Blending the catalyst, triphenylphosphine–triphenylborane complex (PB-complex) or pyridine–triphenylborane complex (NB-complex) into the rubber compositions has been found to improve the tan δ balance at high and low temperatures without impeding processability. This result indicates that effective silanization using catalysts is important to balance the properties before and after curing; and the PB- and NB-complex can act as an effective silanization catalyst even in the mixing process. The acceleration of silanization by using the catalysts has been confirmed by the results of model reactions between silica and silane coupling agents in the presence or absence of the PB-complex in organic solvent.
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Affiliation(s)
- Yusuke Tanabe
- The Yokohama Rubber Co., Ltd., Hiratsuka, Kanagawa, Japan
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15
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Dova D, Viglianti L, Mussini PR, Prager S, Dreuw A, Voituriez A, Licandro E, Cauteruccio S. Tetrathia[7]helicene Phosphorus Derivatives: Experimental and Theoretical Investigations of Electronic Properties, and Preliminary Applications as Organocatalysts. ASIAN J ORG CHEM 2016. [DOI: 10.1002/ajoc.201600025] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Davide Dova
- Dipartimento di ChimicaUniversità degli Studi di Milano via Golgi 19 20133 Milano Italy
| | - Lucia Viglianti
- Dipartimento di ChimicaUniversità degli Studi di Milano via Golgi 19 20133 Milano Italy
| | - Patrizia R. Mussini
- Dipartimento di ChimicaUniversità degli Studi di Milano via Golgi 19 20133 Milano Italy
| | - Stefan Prager
- Interdisciplinary Center for Scientific ComputingHeidelberg University Im Neuenheimer Feld 368 69120 Heidelberg Germany
| | - Andreas Dreuw
- Interdisciplinary Center for Scientific ComputingHeidelberg University Im Neuenheimer Feld 368 69120 Heidelberg Germany
| | - Arnaud Voituriez
- Institut de Chimie des Substances Naturelles CNRS UPR 2301 1, av. De la Terrasse 91198 Gif-sur-Yvette France
| | - Emanuela Licandro
- Dipartimento di ChimicaUniversità degli Studi di Milano via Golgi 19 20133 Milano Italy
| | - Silvia Cauteruccio
- Dipartimento di ChimicaUniversità degli Studi di Milano via Golgi 19 20133 Milano Italy
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16
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Dutartre M, Bayardon J, Jugé S. Applications and stereoselective syntheses of P-chirogenic phosphorus compounds. Chem Soc Rev 2016; 45:5771-5794. [DOI: 10.1039/c6cs00031b] [Citation(s) in RCA: 233] [Impact Index Per Article: 29.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
This review reports the best stereoselective or asymmetric syntheses, the most efficient P*-building blocks and functionalisation of P-chirogenic compounds, in the light of chiral phosphorus compound applications.
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Affiliation(s)
- Mathieu Dutartre
- Institut de Chimie Moléculaire de l'Université de Bourgogne (ICMUB-StéréochIM)
- UMR CNRS 6302
- 21078 Dijon Cedex
- France
| | - Jérôme Bayardon
- Institut de Chimie Moléculaire de l'Université de Bourgogne (ICMUB-StéréochIM)
- UMR CNRS 6302
- 21078 Dijon Cedex
- France
| | - Sylvain Jugé
- Institut de Chimie Moléculaire de l'Université de Bourgogne (ICMUB-StéréochIM)
- UMR CNRS 6302
- 21078 Dijon Cedex
- France
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17
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Cai J, Zhang M, Zhao X. Synthesis of Allyl Carbamates through the Regioselective Domino Reaction of Amines, CO2, and Unsymmetrical Allyl Chlorides under Pd Catalysis. European J Org Chem 2015. [DOI: 10.1002/ejoc.201500769] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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18
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Jugé S. Designing P*-chirogenic Organophosphorus Compounds: from Ligands to Organocatalysts. PHOSPHORUS SULFUR 2015. [DOI: 10.1080/10426507.2014.999368] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Sylvain Jugé
- Institut de Chimie Moléculaire de l’Université de Bourgogne (ICMUB-StéréochIM), UMR CNRS 6302, 9 avenue A. Savary, 21078, Dijon Cedex, France
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Yang S, Han X, Luo M, Gao J, Chu W, Ding Y. Highly efficient reduction of tertiary phosphine oxides and sulfides with amine-assisted aluminum hydrides under mild conditions. RUSS J GEN CHEM+ 2015. [DOI: 10.1134/s1070363215050266] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Lloyd-Jones GC, Taylor NP. Mechanism of phosphine borane deprotection with amines: the effects of phosphine, solvent and amine on rate and efficiency. Chemistry 2015; 21:5423-8. [PMID: 25704230 DOI: 10.1002/chem.201406585] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2014] [Indexed: 11/07/2022]
Abstract
The kinetics of borane transfer from simple tertiary phosphine borane adducts to a wide range of amines have been determined. All data obtained, including second-order kinetics, lack of cross-over, and negative entropies of activation for reaction of triphenylphosphine borane with quinuclidine and triethylamine, are consistent with a direct (SN 2-like) transfer process, rather than a dissociative (SN 1-like) process. The identities of the amine, phosphine, and solvent all impact substantially on the rate (k) and equilibrium (K) of the transfer, which in some cases vary by many orders of magnitude. P-to-N transfer is more efficient with cyclic amines in apolar solvents due to reduced entropic costs and ground-state destabilisation. Taken as a whole, the data allow informed optimisation of the deprotection step from the stand-point of rate, or synthetic convenience. In all cases, both reactants should be present at high initial concentration to gain kinetic benefit from the bimolecularity of the process. Ultimately, the choice of amine is dictated by the identity of the phosphine borane complex. Aryl-rich phosphine boranes are sufficiently reactive to allow use of diethylamine or pyrrolidine as a volatile low polarity solvent and reactant, whereas more alkyl-rich phosphines benefit from the use of more reactive amines, such as 1,4-diaza[2.2.2]bicyclooctane (DABCO), in apolar solvents at higher temperatures.
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Affiliation(s)
- Guy C Lloyd-Jones
- School of Chemistry, University of Edinburgh, Joseph Black Building, David Brewster Road, Edinburgh EH9 3FJ (UK).
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21
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Kenny NP, Rajendran KV, Gilheany DG. Chemoselective reduction of the phosphoryl bond of O-alkyl phosphinates and related compounds: an apparently impossible transformation. Chem Commun (Camb) 2015; 51:16561-4. [DOI: 10.1039/c5cc06389b] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A method is reported for the phosphoryl bond cleavage of O-alkyl phosphinates, phosphinothioates and certain phosphonamidates to furnish the corresponding P(iii) borane adducts.
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Affiliation(s)
- Niall P. Kenny
- Centre for Synthesis and Chemical Biology
- School of Chemistry
- University College Dublin
- Dublin 4
- Ireland
| | - Kamalraj V. Rajendran
- Centre for Synthesis and Chemical Biology
- School of Chemistry
- University College Dublin
- Dublin 4
- Ireland
| | - Declan G. Gilheany
- Centre for Synthesis and Chemical Biology
- School of Chemistry
- University College Dublin
- Dublin 4
- Ireland
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22
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Klahn M, Hollmann D, Spannenberg A, Brückner A, Beweries T. Titanocene(iii) complexes with 2-phosphinoaryloxide ligands for the catalytic dehydrogenation of dimethylamine borane. Dalton Trans 2015; 44:12103-11. [DOI: 10.1039/c5dt00275c] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A study of the dehydrogenation of dimethylamine borane using different titanocene(iii) complexes with 2-phosphinoaryloxide ligands is presented.
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Affiliation(s)
- Marcus Klahn
- Leibniz-Institut für Katalyse e.V. an der Universität Rostock
- 18059 Rostock
- Germany
| | - Dirk Hollmann
- Leibniz-Institut für Katalyse e.V. an der Universität Rostock
- 18059 Rostock
- Germany
| | - Anke Spannenberg
- Leibniz-Institut für Katalyse e.V. an der Universität Rostock
- 18059 Rostock
- Germany
| | - Angelika Brückner
- Leibniz-Institut für Katalyse e.V. an der Universität Rostock
- 18059 Rostock
- Germany
| | - Torsten Beweries
- Leibniz-Institut für Katalyse e.V. an der Universität Rostock
- 18059 Rostock
- Germany
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23
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Busacca CA, Milligan JA, Rattanangkool E, Ramavarapu C, Chen A, Saha AK, Li Z, Lee H, Geib SJ, Wang G, Senanayake CH, Wipf P. Synthesis of Phosphaguanidines by Hydrophosphination of Carbodiimides with Phosphine Boranes. J Org Chem 2014; 79:9878-87. [DOI: 10.1021/jo501841s] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Carl A. Busacca
- Chemical
Development, Boehringer-Ingelheim Pharmaceuticals, Inc., 900 Ridgebury Road, Ridgefield, Connecticut 06877, United States
| | - John A. Milligan
- Department
of Chemistry, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, United States
| | - Eakkaphon Rattanangkool
- Department
of Chemistry, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, United States
| | - Cyrus Ramavarapu
- Chemical
Development, Boehringer-Ingelheim Pharmaceuticals, Inc., 900 Ridgebury Road, Ridgefield, Connecticut 06877, United States
- Department
of Chemistry, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, United States
| | - Anji Chen
- Department
of Chemistry and Biochemistry, Old Dominion University, 4541 Hampton
Boulevard, Norfolk, Virginia 23529, United States
| | - Anjan K. Saha
- Chemical
Development, Boehringer-Ingelheim Pharmaceuticals, Inc., 900 Ridgebury Road, Ridgefield, Connecticut 06877, United States
| | - Zhibin Li
- Chemical
Development, Boehringer-Ingelheim Pharmaceuticals, Inc., 900 Ridgebury Road, Ridgefield, Connecticut 06877, United States
| | - Heewon Lee
- Chemical
Development, Boehringer-Ingelheim Pharmaceuticals, Inc., 900 Ridgebury Road, Ridgefield, Connecticut 06877, United States
| | - Steven J. Geib
- Department
of Chemistry, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, United States
| | - Guijun Wang
- Department
of Chemistry and Biochemistry, Old Dominion University, 4541 Hampton
Boulevard, Norfolk, Virginia 23529, United States
| | - Chris H. Senanayake
- Chemical
Development, Boehringer-Ingelheim Pharmaceuticals, Inc., 900 Ridgebury Road, Ridgefield, Connecticut 06877, United States
| | - Peter Wipf
- Department
of Chemistry, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, United States
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24
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Izod K, Wills C, Anderson E, Harrington RW, Probert MR. Insights into the Stability and Structures of Phosphine-Boranes and Their α-Metalated Derivatives. Organometallics 2014. [DOI: 10.1021/om5005995] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Keith Izod
- Main Group Chemistry Laboratories,
School of Chemistry, Newcastle University, Bedson Building, Newcastle upon Tyne, NE1 7RU, U.K
| | - Corinne Wills
- Main Group Chemistry Laboratories,
School of Chemistry, Newcastle University, Bedson Building, Newcastle upon Tyne, NE1 7RU, U.K
| | - Emma Anderson
- Main Group Chemistry Laboratories,
School of Chemistry, Newcastle University, Bedson Building, Newcastle upon Tyne, NE1 7RU, U.K
| | - Ross W. Harrington
- Main Group Chemistry Laboratories,
School of Chemistry, Newcastle University, Bedson Building, Newcastle upon Tyne, NE1 7RU, U.K
| | - Michael R. Probert
- Main Group Chemistry Laboratories,
School of Chemistry, Newcastle University, Bedson Building, Newcastle upon Tyne, NE1 7RU, U.K
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25
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Hooper TN, Huertos MA, Jurca T, Pike SD, Weller AS, Manners I. Effect of the phosphine steric and electronic profile on the Rh-promoted dehydrocoupling of phosphine-boranes. Inorg Chem 2014; 53:3716-29. [PMID: 24617924 PMCID: PMC3979130 DOI: 10.1021/ic500032f] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
![]()
The electronic and
steric effects in the stoichiometric dehydrocoupling
of secondary and primary phosphine–boranes H3B·PR2H [R = 3,5-(CF3)2C6H3; p-(CF3)C6H4; p-(OMe)C6H4; adamantyl,
Ad] and H3B·PCyH2 to form the metal-bound
linear diboraphosphines H3B·PR2BH2·PR2H and H3B·PRHBH2·PRH2, respectively, are reported. Reaction of [Rh(L)(η6-FC6H5)][BArF4] [L = Ph2P(CH2)3PPh2, ArF = 3,5-(CF3)2C6H3] with 2 equiv of H3B·PR2H affords
[Rh(L)(H)(σ,η-PR2BH3)(η1-H3B·PR2H)][BArF4]. These complexes undergo dehydrocoupling to give the diboraphosphine
complexes [Rh(L)(H)(σ,η2-PR2·BH2PR2·BH3)][BArF4]. With electron-withdrawing groups on the phosphine–borane there is the parallel formation
of the products of B–P cleavage, [Rh(L)(PR2H)2][BArF4], while with electron-donating
groups no parallel product is formed. For the bulky, electron rich,
H3B·P(Ad)2H no dehydrocoupling is observed,
but an intermediate Rh(I) σ phosphine–borane complex
is formed, [Rh(L){η2-H3B·P(Ad)2H}][BArF4], that undergoes B–P
bond cleavage to give [Rh(L){η1-H3B·P(Ad)2H}{P(Ad)2H}][BArF4]. The
relative rates of dehydrocoupling of H3B·PR2H (R = aryl) show that increasingly electron-withdrawing substituents
result in faster dehydrocoupling, but also suffer from the formation
of the parallel product resulting from P–B bond cleavage. H3B·PCyH2 undergoes a similar dehydrocoupling
process, and gives a mixture of stereoisomers of the resulting metal-bound
diboraphosphine that arise from activation of the prochiral P–H
bonds, with one stereoisomer favored. This diastereomeric mixture
may also be biased by use of a chiral phosphine ligand. The selectivity
and efficiencies of resulting catalytic dehydrocoupling processes
are also briefly discussed. The effect of changing the steric and
electronic profile
of the phosphine of primary and secondary phosphine−boranes
H3B·PR2H (R = H, aryl, adamantyl) on the
Rh-catalyzed dehydrocoupling to form metal-bound linear diboraphosphines
is reported.
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Affiliation(s)
- Thomas N Hooper
- Department of Chemistry, University of Oxford , Mansfield Road, Oxford OX1 3TA, United Kingdom
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26
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27
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Abstract
Diazo compounds are in widespread use in synthetic organic chemistry but have untapped potential in chemical biology. We report on the design and optimization of a phosphinoester that mediates the efficient conversion of azides into diazo compounds in phosphate buffer at neutral pH and room temperature. High yields are maintained in the presence of common nucleophilic or electrophilic functional groups, and reaction progress can be monitored by colorimetry. As azido groups are easy to install and maintain in biopolymers or their ligands, this new mode of azide reactivity could have substantial utility in chemical biology.
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Affiliation(s)
- Ho-Hsuan Chou
- Department of Chemistry and ∥Department of Biochemistry, University of Wisconsin-Madison , Madison, Wisconsin 53706, United States
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28
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Kenny NP, Rajendran KV, Jennings EV, Gilheany DG. Cleavage of PO in the Presence of P-N: Aminophosphine Oxide Reduction with In Situ Boronation of the PIIIProduct. Chemistry 2013; 19:14210-4. [DOI: 10.1002/chem.201302907] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2013] [Indexed: 11/06/2022]
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29
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Cauteruccio S, Loos A, Bossi A, Blanco Jaimes MC, Dova D, Rominger F, Prager S, Dreuw A, Licandro E, Hashmi ASK. Gold(I) Complexes of Tetrathiaheterohelicene Phosphanes. Inorg Chem 2013; 52:7995-8004. [DOI: 10.1021/ic4005533] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Silvia Cauteruccio
- Dipartimento di Chimica, Università degli Studi di Milano, via Golgi 19, I-20133 Milan,
Italy
| | - Annette Loos
- Organisch-Chemisches
Institut, Universität Heidelberg, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany
| | - Alberto Bossi
- Istituto di Scienze e Tecnologie Molecolari, CNR, via Fantoli 16/15, I-20138
Milan, Italy
| | - Maria Camila Blanco Jaimes
- Organisch-Chemisches
Institut, Universität Heidelberg, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany
| | - Davide Dova
- Dipartimento di Chimica, Università degli Studi di Milano, via Golgi 19, I-20133 Milan,
Italy
| | - Frank Rominger
- Organisch-Chemisches
Institut, Universität Heidelberg, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany
| | - Stefan Prager
- Interdisziplinäres
Zentrum für Wissenschaftliches Rechnen, Universität Heidelberg, Im Neuenheimer Feld 368, 69120 Heidelberg,
Germany
| | - Andreas Dreuw
- Interdisziplinäres
Zentrum für Wissenschaftliches Rechnen, Universität Heidelberg, Im Neuenheimer Feld 368, 69120 Heidelberg,
Germany
| | - Emanuela Licandro
- Dipartimento di Chimica, Università degli Studi di Milano, via Golgi 19, I-20133 Milan,
Italy
| | - A. Stephen K. Hashmi
- Organisch-Chemisches
Institut, Universität Heidelberg, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany
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30
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Aznar R, Grabulosa A, Mannu A, Muller G, Sainz D, Moreno V, Font-Bardia M, Calvet T, Lorenzo J. [RuCl2(η6-p-cymene)(P*)] and [RuCl2(κ-P*-η6-arene)] Complexes Containing P-Stereogenic Phosphines. Activity in Transfer Hydrogenation and Interactions with DNA. Organometallics 2013. [DOI: 10.1021/om3012294] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Rosario Aznar
- Departament de Quı́mica Inorgànica, Universitat de Barcelona, Martí
i Franquès 1-11, E-08028 Barcelona, Spain
| | - Arnald Grabulosa
- Departament de Quı́mica Inorgànica, Universitat de Barcelona, Martí
i Franquès 1-11, E-08028 Barcelona, Spain
| | - Alberto Mannu
- Departament de Quı́mica Inorgànica, Universitat de Barcelona, Martí
i Franquès 1-11, E-08028 Barcelona, Spain
- Istituto
di Chimica Biomolecolare, CNR, trav. La Crucca 3, 07100, Sassari, Italy
| | - Guillermo Muller
- Departament de Quı́mica Inorgànica, Universitat de Barcelona, Martí
i Franquès 1-11, E-08028 Barcelona, Spain
| | - Daniel Sainz
- Departament de Quı́mica Inorgànica, Universitat de Barcelona, Martí
i Franquès 1-11, E-08028 Barcelona, Spain
| | - Virtudes Moreno
- Departament de Quı́mica Inorgànica, Universitat de Barcelona, Martí
i Franquès 1-11, E-08028 Barcelona, Spain
| | - Mercè Font-Bardia
- Departament de Crystal·lografia,
Mineralogia i Dipòsits
Minerals, Universitat de Barcelona, Martı́ i Franquès s/n, E-08028 Barcelona, Spain
| | - Teresa Calvet
- Departament de Crystal·lografia,
Mineralogia i Dipòsits
Minerals, Universitat de Barcelona, Martı́ i Franquès s/n, E-08028 Barcelona, Spain
| | - Julia Lorenzo
- Institut de Biotecnologia i de Biomedicina, Universitat Autònoma de Barcelona, 08193 Bellaterra,
Barcelona, Spain
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31
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Doherty S, Knight JG, Ward NAB, Bittner DM, Wills C, McFarlane W, Clegg W, Harrington RW. Electron-Rich Trialkyl-Type Dihydro-KITPHOS Monophosphines: Efficient Ligands for Palladium-Catalyzed Suzuki–Miyaura Cross-Coupling. Comparison with Their Biaryl-Like KITPHOS Monophosphine Counterparts. Organometallics 2013. [DOI: 10.1021/om3011992] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Simon Doherty
- NUCat, School of Chemistry, Bedson Building, Newcastle University, Newcastle upon Tyne NE1 7RU,
U.K
| | - Julian G. Knight
- NUCat, School of Chemistry, Bedson Building, Newcastle University, Newcastle upon Tyne NE1 7RU,
U.K
| | - Nicholas A. B. Ward
- NUCat, School of Chemistry, Bedson Building, Newcastle University, Newcastle upon Tyne NE1 7RU,
U.K
| | - Dror M. Bittner
- NUCat, School of Chemistry, Bedson Building, Newcastle University, Newcastle upon Tyne NE1 7RU,
U.K
| | - Corinne Wills
- NUCat, School of Chemistry, Bedson Building, Newcastle University, Newcastle upon Tyne NE1 7RU,
U.K
| | - William McFarlane
- NUCat, School of Chemistry, Bedson Building, Newcastle University, Newcastle upon Tyne NE1 7RU,
U.K
| | - William Clegg
- NUCat, School of Chemistry, Bedson Building, Newcastle University, Newcastle upon Tyne NE1 7RU,
U.K
| | - Ross W. Harrington
- NUCat, School of Chemistry, Bedson Building, Newcastle University, Newcastle upon Tyne NE1 7RU,
U.K
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32
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33
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Spokoyny AM, Lewis CD, Teverovskiy G, Buchwald SL. Extremely Electron-Rich, Boron-Functionalized, Icosahedral Carborane-Based Phosphinoboranes. Organometallics 2012; 31:8478-8481. [PMID: 23667288 DOI: 10.1021/om301116x] [Citation(s) in RCA: 88] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
We have prepared the first examples of B9-connected trivalent aryl and alkyl phosphinoborane species via Pd-catalyzed phosphination of 9-iodo-meta-carborane. Our studies highlight the unique electronic features of the B9-connected meta-carboranyl moiety as compared to its C1-based analogue. This work suggests that the B9-functionalized meta-carboranyl substituent in these ligands exhibits more electron-releasing character than any other known carbon-based substituent, ultimately laying the foundation for a new class of phosphine ligands with extremely electron-rich character.
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Affiliation(s)
- Alexander M Spokoyny
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, MA 02139, United States
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34
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Dodds DL, Boele MDK, van Strijdonck GPF, de Vries JG, van Leeuwen PWNM, Kamer PCJ. Design, Testing and Kinetic Analysis of Bulky Monodentate Phosphorus Ligands in the Mizoroki–Heck Reaction. Eur J Inorg Chem 2012. [DOI: 10.1002/ejic.201101271] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Deborah L. Dodds
- Eastchem, School of Chemistry, North Haugh, University of St Andrews, St Andrews, Fife, UK, Fax: +44‐1334‐463808
| | - Maarten D. K. Boele
- University of Amsterdam, Institute of Molecular Chemistry, Nieuwe Achtergracht 166, 1018 WV Amsterdam, The Netherlands
| | - Gino P. F. van Strijdonck
- University of Amsterdam, Institute of Molecular Chemistry, Nieuwe Achtergracht 166, 1018 WV Amsterdam, The Netherlands
| | - Johannes G. de Vries
- DSM Pharmaceutical Products‐Innovative Synthesis & Catalysis, P. O. Box 18, 6160 MD Geleen, The Netherlands
| | - Piet W. N. M. van Leeuwen
- University of Amsterdam, Institute of Molecular Chemistry, Nieuwe Achtergracht 166, 1018 WV Amsterdam, The Netherlands
| | - Paul C. J. Kamer
- Eastchem, School of Chemistry, North Haugh, University of St Andrews, St Andrews, Fife, UK, Fax: +44‐1334‐463808
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35
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Rajendran KV, Gilheany DG. Simple unprecedented conversion of phosphine oxides and sulfides to phosphine boranes using sodium borohydride. Chem Commun (Camb) 2012; 48:817-9. [DOI: 10.1039/c1cc14856g] [Citation(s) in RCA: 112] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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36
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Monteforte M, Cauteruccio S, Maiorana S, Benincori T, Forni A, Raimondi L, Graiff C, Tiripicchio A, Stephenson GR, Licandro E. Tetrathiaheterohelicene Phosphanes as Helical-Shaped Chiral Ligands for Catalysis. European J Org Chem 2011. [DOI: 10.1002/ejoc.201100726] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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37
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Denmark SE, Werner NS. γ-Selective cross-coupling of allylic silanolate salts with aromatic bromides using trialkylphosphonium tetrafluoroborate salts prepared directly from phosphine•borane adducts. Org Lett 2011; 13:4596-9. [PMID: 21830766 DOI: 10.1021/ol2017998] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The γ-selective, palladium-catalyzed cross-coupling of sodium (Z)-2-butenyldiethylsilanolate with a variety of aromatic bromides is reported. The protocol provides high yields (73-94%) and site selectivity (γ/α, 25:1 → > 99:1) in the coupling of electron-rich, electron-poor, sterically hindered, and heteroaromatic bromides. The use of a configurationally homogeneous (Z)-silanolate, nontransferable ethyl groups, and a sterically bulky trialkylphosphonium tetrafluoroborate salt (t-BuCy(2)PH(+)BF(4)(-)) prepared directly from the corresponding air-stable phosphine•borane adduct are critical to the success of the method.
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Affiliation(s)
- Scott E Denmark
- Roger Adams Laboratory, Department of Chemistry, University of Illinois, 600 South Mathews Avenue, Urbana, Illinois 61801, USA.
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38
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Ortial S, Montchamp JL. Synthesis of Z-Alkenyl Phosphorus Compounds through Hydroalumination and Carbocupration of Alkynyl Precursors. Org Lett 2011; 13:3134-7. [PMID: 21595434 DOI: 10.1021/ol2010374] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Stéphanie Ortial
- Department of Chemistry, Box 298860, Texas Christian University, Fort Worth, Texas 76129, United States
| | - Jean-Luc Montchamp
- Department of Chemistry, Box 298860, Texas Christian University, Fort Worth, Texas 76129, United States
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39
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Duraud A, Jacquet O, Fiaud JC, Guillot R, Toffano M. Stereoselective Palladium Catalyzed Allylic Phosphination. ChemCatChem 2011. [DOI: 10.1002/cctc.201000458] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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40
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Pretze M, Wuest F, Peppel T, Köckerling M, Mamat C. The traceless Staudinger ligation with fluorine-18: a novel and versatile labeling technique for the synthesis of PET-radiotracers. Tetrahedron Lett 2010. [DOI: 10.1016/j.tetlet.2010.09.134] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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41
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A novel C2-symmetric bisphosphane ligand with a chiral cyclopropane backbone: synthesis and application in the Rh(I)-catalyzed asymmetric 1,4-addition of arylboronic acids. ACTA ACUST UNITED AC 2010. [DOI: 10.1016/j.tetasy.2010.10.027] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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42
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Ortial S, Thompson DA, Montchamp JL. Mixed 1,1-Bisphosphorus Compounds: Synthesis, Alkylation, and Horner−Wadsworth−Emmons Olefination Reactions. J Org Chem 2010; 75:8166-79. [DOI: 10.1021/jo101814w] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Stéphanie Ortial
- Department of Chemistry, Box 298860, Texas Christian University, Fort Worth, Texas 76129, United States
| | - Dane A. Thompson
- Department of Chemistry, Box 298860, Texas Christian University, Fort Worth, Texas 76129, United States
| | - Jean-Luc Montchamp
- Department of Chemistry, Box 298860, Texas Christian University, Fort Worth, Texas 76129, United States
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43
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trans-(2R,3R)-2,3-Diphenylcyclopropane-1,1-dimethanol: a pivotal diol for the synthesis of novel C2-symmetric ligands for asymmetric transition metal catalysis. ACTA ACUST UNITED AC 2010. [DOI: 10.1016/j.tetasy.2010.08.007] [Citation(s) in RCA: 8] [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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44
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Staubitz A, Robertson APM, Sloan ME, Manners I. Amine− and Phosphine−Borane Adducts: New Interest in Old Molecules. Chem Rev 2010; 110:4023-78. [DOI: 10.1021/cr100105a] [Citation(s) in RCA: 554] [Impact Index Per Article: 39.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Anne Staubitz
- School of Chemistry, University of Bristol, Bristol, U.K., BS8 1TS
| | | | - Matthew E. Sloan
- School of Chemistry, University of Bristol, Bristol, U.K., BS8 1TS
| | - Ian Manners
- School of Chemistry, University of Bristol, Bristol, U.K., BS8 1TS
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