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Fujita KI, Hattori H. Synthesis of Dendrimers with a Bidentate Phosphine Core Ligand Having Carboxy Groups at the Peripheral Layer and Their Application to Aqueous Media Cross-Coupling Reactions. Chem Pharm Bull (Tokyo) 2016; 64:1067-72. [PMID: 27373669 DOI: 10.1248/cpb.c16-00282] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
We prepared a series of dendrimers with a bidentate phosphine core ligand having carboxy groups at the peripheral layer. By employing the corresponding water-soluble dendritic phosphine-palladium complex as a catalyst, the aqueous media Suzuki-Miyaura reaction and Tsuji-Trost reaction proceeded to provide the corresponding cross-coupling product.
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Affiliation(s)
- Ken-Ichi Fujita
- National Institute of Advanced Industrial Science and Technology (AIST)
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Abstract
The transition metal complexes containing chiral phosphorus ligands are the most widely and successfully used catalysts in asymmetric hydrogenation of unsaturated compounds. However, a major problem associated with these homogeneous catalytic systems is the separation and recycling of the often expensive and easily oxidized chiral catalysts. In addition, many hydrogenation reactions still lack efficient chiral catalysts, and the stereoselectivities in many hydrogenation reactions are substrate-dependent. Therefore, the development of highly effective and recyclable chiral phosphorus catalysts is highly desirable. Over the past few decades, a number of chiral catalysts have been successfully anchored onto different supports, such as cross-linked polymeric resins and inorganic materials. However, most of the classical supported chiral catalysts suffered from inferior catalytic properties to their homogeneous counterparts due to poor accessibility, random anchoring, and disturbed geometry of the active sites in the solid matrix. To overcome this drawback, dendrimers, which have well-defined and globular macromolecular architectures serve as a promising type of soluble catalyst support. The catalytic sites are generally located at the core or on the periphery of the dendrimer, and the resulting dendritic catalysts are designable. Incorporation of a chiral catalyst into a sterically demanding dendrimer will create a specific microenvironment around the catalytic site and thus influence the catalytic performance of the metal center, like an enzyme does. In this Account, we survey the development of core-functionalized chiral dendritic phosphorus ligands for asymmetric hydrogenation mainly by our research group. Several series of chiral dendritic phosphorus ligands, including diphosphines, monodentate phosphoramidites, and P,N-ligands, have been synthesized by attaching the corresponding chiral phosphorus units into the core or the focal point of Fréchet-type dendrons. Their transition metal (Ru, Rh, or Ir) complexes have been applied in the asymmetric hydrogenation of prochiral olefins and ketones, as well as some challenging imine-type substrates. All reactions were carried out in a homogeneous manner, and the structure-property relationships in some cases were established. The sterically demanding dendritic wedges were found to play important roles in catalytic properties, and better catalytic activities or enantioselectivities or both than those obtained from the corresponding monomeric catalysts were achieved in most cases. In addition, the dendritic catalysts could be readily recycled by means of solvent precipitation, water- or temperature-induced two-phase separation. Our study has thus demonstrated that dendrimer catalysis could combine the advantages of both classical heterogeneous and homogeneous catalysis.
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Affiliation(s)
- Yan-Mei He
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences (CAS), Beijing, 100190, China
| | - Yu Feng
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences (CAS), Beijing, 100190, China
| | - Qing-Hua Fan
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences (CAS), Beijing, 100190, China
- Collaborative Innovation Center of Chemical Science and Engineering, Tianjin 300071, China
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Ma B, Miao T, Sun Y, He Y, Liu J, Feng Y, Chen H, Fan QH. A New Class of Tunable Dendritic Diphosphine Ligands: Synthesis and Applications in the Ru-Catalyzed Asymmetric Hydrogenation of Functionalized Ketones. Chemistry 2014; 20:9969-78. [DOI: 10.1002/chem.201402709] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2014] [Indexed: 11/07/2022]
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Li Y, Yu S, Wu X, Xiao J, Shen W, Dong Z, Gao J. Iron Catalyzed Asymmetric Hydrogenation of Ketones. J Am Chem Soc 2014; 136:4031-9. [DOI: 10.1021/ja5003636] [Citation(s) in RCA: 192] [Impact Index Per Article: 19.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Yanyun Li
- State
Key Laboratory of Physical Chemistry of Solid Surfaces, National Engineering
Laboratory for Green Chemical Productions of Alcohols, Ethers, and
Esters, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, P. R. China
- Department
of Chemistry, University of Liverpool, Liverpool L69 7ZD, United Kingdom
| | - Shenluan Yu
- State
Key Laboratory of Physical Chemistry of Solid Surfaces, National Engineering
Laboratory for Green Chemical Productions of Alcohols, Ethers, and
Esters, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, P. R. China
- Department
of Chemistry, University of Liverpool, Liverpool L69 7ZD, United Kingdom
| | - Xiaofeng Wu
- Department
of Chemistry, University of Liverpool, Liverpool L69 7ZD, United Kingdom
| | - Jianliang Xiao
- Department
of Chemistry, University of Liverpool, Liverpool L69 7ZD, United Kingdom
| | - Weiyi Shen
- State
Key Laboratory of Physical Chemistry of Solid Surfaces, National Engineering
Laboratory for Green Chemical Productions of Alcohols, Ethers, and
Esters, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, P. R. China
| | - Zhenrong Dong
- State
Key Laboratory of Physical Chemistry of Solid Surfaces, National Engineering
Laboratory for Green Chemical Productions of Alcohols, Ethers, and
Esters, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, P. R. China
| | - Jingxing Gao
- State
Key Laboratory of Physical Chemistry of Solid Surfaces, National Engineering
Laboratory for Green Chemical Productions of Alcohols, Ethers, and
Esters, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, P. R. China
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Liu J, Feng Y, Ma B, He YM, Fan QH. Design and Synthesis of Janus-Type Chiral Dendritic Diphosphanes and Their Applications in Asymmetric Hydrogenation. European J Org Chem 2012. [DOI: 10.1002/ejoc.201200999] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Application of well-defined chain-end-functionalized polystyrenes with dendritic chiral ephedrine moieties as reagents for highly catalytic enantioselective addition of dialkylzincs to aldehydes. ACTA ACUST UNITED AC 2008. [DOI: 10.1016/j.tetasy.2007.12.020] [Citation(s) in RCA: 9] [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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Caminade AM, Servin P, Laurent R, Majoral JP. Dendrimeric phosphines in asymmetric catalysis. Chem Soc Rev 2007; 37:56-67. [PMID: 18197333 DOI: 10.1039/b606569b] [Citation(s) in RCA: 137] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Dendrimers are hyperbranched nanosized and precisely defined molecules, attracting increasing attention each year due to their numerous properties in catalysis, materials science, and biology. This tutorial review concerns the use of dendrimers as catalysts and focuses more precisely on their properties as enantioselective catalysts. Emphasis is put on chiral phosphine complexes constituting the core or the end groups of various types of dendrimers. The effect of the location of the catalytic entities, the effect of the size (generation) and the nature of the dendritic skeleton on the enantiomeric excesses are discussed.
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Affiliation(s)
- Anne-Marie Caminade
- Laboratoire de Chimie de Coordination du CNRS, 205 route de Narbonne, 31077 Toulouse Cedex 4, France.
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Chai LT, Wang WW, Wang QR, Tao FG. Asymmetric hydrogenation of aromatic ketones with MeO-PEG-supported BIPHEP/DPEN ruthenium catalysts. ACTA ACUST UNITED AC 2007. [DOI: 10.1016/j.molcata.2007.01.042] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Hwang SH, Shreiner CD, Moorefield CN, Newkome GR. Recent progress and applications for metallodendrimers. NEW J CHEM 2007. [DOI: 10.1039/b612656c] [Citation(s) in RCA: 188] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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Li BL, Liu ZT, Deng GJ, Fan QH. The Synthesis of Dendritic β-Diketonato Ligands and Their Europium Complexes. European J Org Chem 2007. [DOI: 10.1002/ejoc.200600583] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Zhou HF, Fan QH, Tang WJ, Xu LJ, He YM, Deng GJ, Zhao LW, Gu LQ, Chan AS. Polyethylene Glycol as an Environmentally Friendly and Recyclable Reaction Medium for Enantioselective Hydrogenation. Adv Synth Catal 2006. [DOI: 10.1002/adsc.200606215] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Wu L, Li BL, Huang YY, Zhou HF, He YM, Fan QH. Phosphine Dendrimer-Stabilized Palladium Nanoparticles, a Highly Active and Recyclable Catalyst for the Suzuki−Miyaura Reaction and Hydrogenation. Org Lett 2006; 8:3605-8. [PMID: 16869671 DOI: 10.1021/ol0614424] [Citation(s) in RCA: 163] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
[reaction: see text] Phosphine dendrimer-stabilized palladium nanoparticles were synthesized and found to be highly effective for Suzuki coupling reactions, affording good to excellent product yields, high turnover number (up to 65,000), and excellent reusability (up to 9 catalytic runs). Furthermore, these Pd nanoparticles are efficient and selective catalysts for hydrogenations.
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Affiliation(s)
- Lei Wu
- Beijing National Laboratory for Molecular Sciences, Center for Chemical Biology, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100080, China
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Tang WJ, Huang YY, He YM, Fan QH. Dendritic MonoPhos: synthesis and application in Rh-catalyzed asymmetric hydrogenation. ACTA ACUST UNITED AC 2006. [DOI: 10.1016/j.tetasy.2006.01.013] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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