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Li S, Zhang D, Zhang R, Bai S, Zhang X. Rhodium‐Catalyzed Chemo‐, Regio‐ and Enantioselective Hydroformylation of Cyclopropyl‐Functionalized Trisubstituted Alkenes. Angew Chem Int Ed Engl 2022; 61:e202206577. [DOI: 10.1002/anie.202206577] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2022] [Indexed: 11/08/2022]
Affiliation(s)
- Shuailong Li
- Department of Chemistry and Shenzhen Key Laboratory of Small Molecule Drug Discovery and Synthesis Southern University of Science and Technology 1088 Xueyuan Road Shenzhen 518055 China
| | - Dequan Zhang
- Department of Chemistry and Shenzhen Key Laboratory of Small Molecule Drug Discovery and Synthesis Southern University of Science and Technology 1088 Xueyuan Road Shenzhen 518055 China
| | - Runtong Zhang
- Department of Chemistry and Shenzhen Key Laboratory of Small Molecule Drug Discovery and Synthesis Southern University of Science and Technology 1088 Xueyuan Road Shenzhen 518055 China
| | - Shao‐Tao Bai
- Department of Chemistry and Shenzhen Key Laboratory of Small Molecule Drug Discovery and Synthesis Southern University of Science and Technology 1088 Xueyuan Road Shenzhen 518055 China
- Academy for Advanced Interdisciplinary Studies and Guangdong Provincial Key Laboratory of Catalysis Southern University of Science and Technology 1088 Xueyuan Road Shenzhen 518055 China
| | - Xumu Zhang
- Department of Chemistry and Shenzhen Key Laboratory of Small Molecule Drug Discovery and Synthesis Southern University of Science and Technology 1088 Xueyuan Road Shenzhen 518055 China
- Academy for Advanced Interdisciplinary Studies and Guangdong Provincial Key Laboratory of Catalysis Southern University of Science and Technology 1088 Xueyuan Road Shenzhen 518055 China
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2
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Li S, Zhang D, Zhang R, Bai S, Zhang X. Chemo‐, Regio‐ and Enantioselective Hydroformylation of Cyclopropyl‐Functionalized Trisubstituted Alkenes. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202206577] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Shuailong Li
- Southern University of Science and Technology Department of Chemistry and Shenzhen Key Laboratory of Small Molecule Drug Discovery and Synthesis CHINA
| | - Dequan Zhang
- Southern University of Science and Technology Department of Biology Department of Chemistry and Shenzhen Key Laboratory of Small Molecule Drug Discovery and Synthesis CHINA
| | - Runtong Zhang
- Southern University of Science and Technology Department of Chemistry and Shenzhen Key Laboratory of Small Molecule Drug Discovery and Synthesis CHINA
| | - Shaotao Bai
- Southern University of Science and Technology Department of Chemistry, Shenzhen Key Laboratory of Small Molecule Drug Discovery and Synthesis, Academy for Advanced Interdisciplinary Studies and Guangdong Provincial Key Laboratory of Catalysis Xueyuan BlvdNo.1088 518055 Shenzhen CHINA
| | - Xumu Zhang
- Southern University of Science and Technology Chemistry 1088 Xueyuan Avenue 518055 Shenzhen CHINA
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3
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Affiliation(s)
| | - Brian R. James
- Department of Chemistry, University of British Columbia, Vancouver, British Columbia, Canada
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4
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Supramolecular interaction controlled and calix[4]arene ligand assisted Pd-catalyzed C(sp3)−H arylation of aliphatic aldehydes. CHINESE CHEM LETT 2022. [DOI: 10.1016/j.cclet.2022.03.125] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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5
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Jacob C, Maes BUW, Evano G. Transient Directing Groups in Metal-Organic Cooperative Catalysis. Chemistry 2021; 27:13899-13952. [PMID: 34286873 DOI: 10.1002/chem.202101598] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2021] [Indexed: 12/13/2022]
Abstract
The direct functionalization of C-H bonds is among the most fundamental chemical transformations in organic synthesis. However, when the innate reactivity of the substrate cannot be utilized for the functionalization of a given single C-H bond, this selective C-H bond functionalization mostly relies on the use of directing groups that allow bringing the catalyst in close proximity to the C-H bond to be activated and these directing groups need to be installed before and cleaved after the transformation, which involves two additional undesired synthetic operations. These additional steps dramatically reduce the overall impact and the attractiveness of C-H bond functionalization techniques since classical approaches based on substrate pre-functionalization are sometimes still more straightforward and appealing. During the past decade, a different approach involving both the in situ installation and removal of the directing group, which can then often be used in a catalytic manner, has emerged: the transient directing group strategy. In addition to its innovative character, this strategy has brought C-H bond functionalization to an unprecedented level of usefulness and has enabled the development of remarkably efficient processes for the direct and selective introduction of functional groups onto both aromatic and aliphatic substrates. The processes unlocked by the development of these transient directing groups will be comprehensively overviewed in this review article.
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Affiliation(s)
- Clément Jacob
- Laboratoire de Chimie Organique, Service de Chimie et Physico-Chimie Organiques, Université libre de Bruxelles (ULB), Avenue F.D. Roosevelt 50, CP160/06, 1050, Brussels, Belgium.,Organic Synthesis Division, Department of Chemistry, University of Antwerp, Groenenborgerlaan 171, 2020, Antwerp, Belgium
| | - Bert U W Maes
- Organic Synthesis Division, Department of Chemistry, University of Antwerp, Groenenborgerlaan 171, 2020, Antwerp, Belgium
| | - Gwilherm Evano
- Laboratoire de Chimie Organique, Service de Chimie et Physico-Chimie Organiques, Université libre de Bruxelles (ULB), Avenue F.D. Roosevelt 50, CP160/06, 1050, Brussels, Belgium
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6
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Transition metal-catalyzed branch-selective hydroformylation of olefins in organic synthesis. GREEN SYNTHESIS AND CATALYSIS 2021. [DOI: 10.1016/j.gresc.2021.04.008] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
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7
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Shin T, Kim H, Kim S, Lee A, Seo MS, Choi J, Kim H, Kim H. Ligand-Controlled Direct Hydroformylation of Trisubstituted Olefins. Org Lett 2019; 21:5789-5792. [DOI: 10.1021/acs.orglett.9b01639] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Taeil Shin
- Department of Chemistry, KAIST, Daejeon 34141, Korea
| | - Hyungsoo Kim
- Department of Chemistry, KAIST, Daejeon 34141, Korea
| | - Sungmin Kim
- Department of Chemistry, KAIST, Daejeon 34141, Korea
| | - Ansoo Lee
- Department of Chemistry, KAIST, Daejeon 34141, Korea
| | - Min-Seob Seo
- Department of Chemistry, KAIST, Daejeon 34141, Korea
| | - Jonghoon Choi
- Department of Chemistry, KAIST, Daejeon 34141, Korea
| | - Hyungjun Kim
- Department of Chemistry, KAIST, Daejeon 34141, Korea
| | - Hyunwoo Kim
- Department of Chemistry, KAIST, Daejeon 34141, Korea
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8
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Rhodium/Phosphine catalysed selective hydroformylation of biorenewable olefins. Appl Organomet Chem 2018. [DOI: 10.1002/aoc.4478] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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9
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Pan L, Yang K, Li G, Ge H. Palladium-catalyzed site-selective arylation of aliphatic ketones enabled by a transient ligand. Chem Commun (Camb) 2018; 54:2759-2762. [DOI: 10.1039/c8cc00980e] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A direct arylation of C–H bonds of ketones enabled by a cheap and commercially available transient ligand with high site-selectivity and functional group compatibility is reported.
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Affiliation(s)
- Lei Pan
- Department of Chemistry and Chemical Biology, Indiana University-Purdue University Indianapolis
- Indianapolis
- USA
| | - Ke Yang
- Department of Chemistry and Chemical Biology, Indiana University-Purdue University Indianapolis
- Indianapolis
- USA
- Institute of Chemistry & BioMedical Sciences
- Nanjing University
| | - Guigen Li
- Institute of Chemistry & BioMedical Sciences
- Nanjing University
- Nanjing 210093
- P. R. China
- Department of Chemistry and Biochemistry
| | - Haibo Ge
- Department of Chemistry and Chemical Biology, Indiana University-Purdue University Indianapolis
- Indianapolis
- USA
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10
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Wildt J, Brezny AC, Landis CR. Backbone-Modified Bisdiazaphospholanes for Regioselective Rhodium-Catalyzed Hydroformylation of Alkenes. Organometallics 2017. [DOI: 10.1021/acs.organomet.7b00475] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Julia Wildt
- Department of Chemistry, University of Wisconsin—Madison, 1101 University Avenue, Madison, Wisconsin 53706, United States
| | - Anna C. Brezny
- Department of Chemistry, University of Wisconsin—Madison, 1101 University Avenue, Madison, Wisconsin 53706, United States
| | - Clark R. Landis
- Department of Chemistry, University of Wisconsin—Madison, 1101 University Avenue, Madison, Wisconsin 53706, United States
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11
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Eshon J, Landis CR, Schomaker JM. Regioselective Rh-Catalyzed Hydroformylation of 1,1,3-Trisubstituted Allenes Using BisDiazaPhos Ligand. J Org Chem 2017. [DOI: 10.1021/acs.joc.7b01140] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Josephine Eshon
- Department of Chemistry, University of Wisconsin—Madison, 1101 University Avenue, Madison, Wisconsin 53706, United States
| | - Clark R. Landis
- Department of Chemistry, University of Wisconsin—Madison, 1101 University Avenue, Madison, Wisconsin 53706, United States
| | - Jennifer M. Schomaker
- Department of Chemistry, University of Wisconsin—Madison, 1101 University Avenue, Madison, Wisconsin 53706, United States
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12
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Yang K, Li Q, Liu Y, Li G, Ge H. Catalytic C–H Arylation of Aliphatic Aldehydes Enabled by a Transient Ligand. J Am Chem Soc 2016; 138:12775-12778. [DOI: 10.1021/jacs.6b08478] [Citation(s) in RCA: 158] [Impact Index Per Article: 19.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Ke Yang
- Institute of Chemistry & BioMedical Sciences, Collaborative Innovation Center of Chemistry for Life Sciences, Nanjing University, Nanjing 210093, P. R. China
- Department
of Chemistry and Chemical Biology, Indiana University−Purdue University Indianapolis, Indianapolis, Indiana 46202, United States
| | - Qun Li
- Institute of Chemistry & BioMedical Sciences, Collaborative Innovation Center of Chemistry for Life Sciences, Nanjing University, Nanjing 210093, P. R. China
| | - Yongbing Liu
- Department
of Chemistry and Chemical Biology, Indiana University−Purdue University Indianapolis, Indianapolis, Indiana 46202, United States
| | - Guigen Li
- Institute of Chemistry & BioMedical Sciences, Collaborative Innovation Center of Chemistry for Life Sciences, Nanjing University, Nanjing 210093, P. R. China
- Department
of Chemistry and Biochemistry, Texas Tech University, Lubbock, Texas 79409-1061, United States
| | - Haibo Ge
- Department
of Chemistry and Chemical Biology, Indiana University−Purdue University Indianapolis, Indianapolis, Indiana 46202, United States
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13
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Brachvogel RC, von Delius M. The Dynamic Covalent Chemistry of Esters, Acetals and Orthoesters. European J Org Chem 2016. [DOI: 10.1002/ejoc.201600388] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- René-Chris Brachvogel
- Institute of Organic Chemistry and Advanced Materials; University of Ulm; Albert-Einstein-Allee 11 89081 Ulm Germany
- Friedrich-Alexander University Erlangen-Nürnberg (FAU); Department of Chemistry and Pharmacy & Interdisciplinary Center of Molecular Materials (ICMM); Henkestr. 42 91054 Erlangen Germany
| | - Max von Delius
- Institute of Organic Chemistry and Advanced Materials; University of Ulm; Albert-Einstein-Allee 11 89081 Ulm Germany
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14
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Joe CL, Blaisdell TP, Geoghan AF, Tan KL. Distal-selective hydroformylation using scaffolding catalysis. J Am Chem Soc 2014; 136:8556-9. [PMID: 24902624 PMCID: PMC4227840 DOI: 10.1021/ja504247g] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
In hydroformylation, phosphorus-based directing groups have been consistently successful at placing the aldehyde on the carbon proximal to the directing group. The design and synthesis of a novel catalytic directing group are reported that promotes aldehyde formation on the carbon distal relative to the directing functionality. This scaffolding ligand, which operates through a reversible covalent bond to the substrate, has been applied to the diastereoselective hydroformylation of homoallylic alcohols to afford δ-lactones selectively. Altering the distance between the alcohol and the olefin revealed that homoallylic alcohols gives the distal lactone with the highest levels of regioselectivity.
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Affiliation(s)
- Candice L Joe
- Department of Chemistry, Merkert Chemistry Center, Boston College , Chestnut Hill, Massachusetts 02467, United States
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15
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Dydio P, Detz RJ, de Bruin B, Reek JNH. Beyond classical reactivity patterns: hydroformylation of vinyl and allyl arenes to valuable β- and γ-aldehyde intermediates using supramolecular catalysis. J Am Chem Soc 2014; 136:8418-29. [PMID: 24841256 DOI: 10.1021/ja503033q] [Citation(s) in RCA: 54] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
In this study, we report on properties of a series of rhodium complexes of bisphosphine and bisphosphite L1-L7 ligands, which are equipped with an integral anion binding site (the DIM pocket), and their application in the regioselective hydroformylation of vinyl and allyl arenes bearing an anionic group. In principle, the binding site of the ligand is used to preorganize a substrate molecule through noncovalent interactions with its anionic group to promote otherwise unfavorable reaction pathways. We demonstrate that this strategy allows for unprecedented reversal of selectivity to form otherwise disfavored β-aldehyde products in the hydroformylation of vinyl 2- and 3-carboxyarenes, with chemo- and regioselectivity up to 100%. The catalyst has a wide substrate scope, including the most challenging substrates with internal double bonds. Coordination studies of the catalysts under catalytically relevant conditions reveal the formation of the hydridobiscarbonyl rhodium complexes [Rh(Ln)(CO)2H]. The titration studies confirm that the rhodium complexes can bind anionic species in the DIM binding site of the ligand. Furthermore, kinetic studies and in situ spectroscopic investigations for the most active catalyst give insight into the operational mode of the system, and reveal that the catalytically active species are involved in complex equilibria with unusual dormant (reversibly inactivated) species. In principle, this involves the competitive inhibition of the recognition center by product binding, as well as the inhibition of the metal center via reversible coordination of either a substrate or a product molecule. Despite the inhibition effects, the substrate preorganization gives rise to very high activities and efficiencies (TON > 18,000 and TOF > 6000 mol mol(-1) h(-1)), which are adequate for commercial applications.
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Affiliation(s)
- Paweł Dydio
- van 't Hoff Institute for Molecular Sciences, University of Amsterdam , Science Park 904, 1098 XH, Amsterdam, The Netherlands
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16
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Dydio P, Reek JNH. Supramolecular control of selectivity in transition-metal catalysis through substrate preorganization. Chem Sci 2014. [DOI: 10.1039/c3sc53505c] [Citation(s) in RCA: 157] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
The Perspective highlights possibilities to use supramolecular interactions between a substrate molecule and a (bifunctional) catalyst as a powerful tool to control the selectivity in transition-metal catalysis.
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Affiliation(s)
- Paweł Dydio
- Homogeneous, Supramolecular and Bio-Inspired Catalysis, van't Hoff Institute for Molecular Sciences
- University of Amsterdam
- 1098 XH Amsterdam, The Netherlands
| | - Joost N. H. Reek
- Homogeneous, Supramolecular and Bio-Inspired Catalysis, van't Hoff Institute for Molecular Sciences
- University of Amsterdam
- 1098 XH Amsterdam, The Netherlands
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17
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Dydio P, Ploeger M, Reek JNH. Selective Isomerization–Hydroformylation Sequence: A Strategy to Valuable α-Methyl-Branched Aldehydes from Terminal Olefins. ACS Catal 2013. [DOI: 10.1021/cs400872a] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
- Paweł Dydio
- van’t Hoff Institute for Molecular Sciences, University of Amsterdam, Science Park 904, 1098 XH Amsterdam, The Netherlands
| | - Marten Ploeger
- van’t Hoff Institute for Molecular Sciences, University of Amsterdam, Science Park 904, 1098 XH Amsterdam, The Netherlands
| | - Joost N. H. Reek
- van’t Hoff Institute for Molecular Sciences, University of Amsterdam, Science Park 904, 1098 XH Amsterdam, The Netherlands
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18
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Dydio P, Detz RJ, Reek JNH. Precise supramolecular control of selectivity in the Rh-catalyzed hydroformylation of terminal and internal alkenes. J Am Chem Soc 2013; 135:10817-28. [PMID: 23802682 DOI: 10.1021/ja4046235] [Citation(s) in RCA: 78] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
In this study, we report a series of DIMPhos ligands L1-L3, bidentate phosphorus ligands equipped with an integral anion binding site (the DIM pocket). Coordination studies show that these ligands bind to a rhodium center in a bidentate fashion. Experiments under hydroformylation conditions confirm the formation of the mononuclear hydridobiscarbonyl rhodium complexes that are generally assumed to be active in hydroformylation. The metal complexes formed still strongly bind the anionic species in the binding site of the ligand, without affecting the metal coordination sphere. These bifunctional properties of DIMPhos are further demonstrated by the crystal structure of the rhodium complex with acetate anion bound in the binding site of the ligand. The catalytic studies demonstrate that substrate preorganization by binding in the DIM pocket of the ligand results in unprecedented selectivities in hydroformylation of terminal and internal alkenes functionalized with an anionic group. Remarkably, the selectivity controlling anionic group can be even 10 bonds away from the reactive double bond, demonstrating the potential of this supramolecular approach. Control experiments confirm the crucial role of the anion binding for the selectivity. DFT studies on the decisive intermediates reveal that the anion binding in the DIM pocket restricts the rotational freedom of the reactive double bound. As a consequence, the pathway to the undesired product is strongly hindered, whereas that for the desired product is lowered in energy. Detailed kinetic studies, together with the in situ spectroscopic measurements and isotope-labeling studies, support this mode of operation and reveal that these supramolecular systems follow enzymatic-type Michaelis-Menten kinetics, with competitive product inhibition.
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Affiliation(s)
- Paweł Dydio
- van't Hoff Institute for Molecular Sciences, University of Amsterdam, Science Park 904, 1098 XH, Amsterdam, The Netherlands
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19
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Takeda M, Shintani R, Hayashi T. Enantioselective Synthesis of α-Tri- and α-Tetrasubstituted Allylsilanes by Copper-Catalyzed Asymmetric Allylic Substitution of Allyl Phosphates with Silylboronates. J Org Chem 2013; 78:5007-17. [DOI: 10.1021/jo400888b] [Citation(s) in RCA: 66] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Momotaro Takeda
- Department
of Chemistry, Graduate
School of Science, Kyoto University, Sakyo,
Kyoto 606-8502, Japan
| | - Ryo Shintani
- Department
of Chemistry, Graduate
School of Science, Kyoto University, Sakyo,
Kyoto 606-8502, Japan
- Department
of Chemistry and
Biotechnology, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Tamio Hayashi
- Institute of Materials Research and Engineering, A*STAR, 3 Research Link, Singapore
117602
- Department of Chemistry, National University of Singapore, 3 Science Drive 3,
Singapore 117543
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20
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Dydio P, Reek JNH. Supramolecular Control of Selectivity in Hydroformylation of Vinyl Arenes: Easy Access to Valuable β-Aldehyde Intermediates. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201209582] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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21
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Dydio P, Reek JNH. Supramolecular Control of Selectivity in Hydroformylation of Vinyl Arenes: Easy Access to Valuable β-Aldehyde Intermediates. Angew Chem Int Ed Engl 2013; 52:3878-82. [DOI: 10.1002/anie.201209582] [Citation(s) in RCA: 65] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2012] [Revised: 01/10/2013] [Indexed: 11/07/2022]
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22
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Weng SS, Li HC, Yang TM. Chemoselective esterification of α-hydroxyacids catalyzed by salicylaldehyde through induced intramolecularity. RSC Adv 2013. [DOI: 10.1039/c2ra23068b] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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23
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24
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25
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Li Z, Parr BT, Davies HML. Highly stereoselective C-C bond formation by rhodium-catalyzed tandem ylide formation/[2,3]-sigmatropic rearrangement between donor/acceptor carbenoids and chiral allylic alcohols. J Am Chem Soc 2012; 134:10942-6. [PMID: 22694052 DOI: 10.1021/ja303023n] [Citation(s) in RCA: 70] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The tandem ylide formation/[2,3]-sigmatropic rearrangement between donor/acceptor rhodium carbenoids and chiral allyl alcohols is a convergent C-C bond forming process, which generates two vicinal stereogenic centers. Any of the four possible stereoisomers can be selectively synthesized by appropriate combination of the chiral catalyst Rh(2)(DOSP)(4) and the chiral alcohol.
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Affiliation(s)
- Zhanjie Li
- Department of Chemistry, Emory University, 1515 Dickey Drive, Atlanta, Georgia 30322, USA
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26
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Tan KL, Sun X, Worthy AD. Scaffolding Catalysis: Expanding the Repertoire of Bifunctional Catalysts. Synlett 2012; 2012:321-325. [PMID: 24600164 PMCID: PMC3940486 DOI: 10.1055/s-0031-1290321] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
Abstract
Inducing an intramolecular reaction is a powerful means of accelerating reactions. Though this mechanism of catalysis is common in enzymes, it is underutilized in synthetic catalysts. This article outlines our group's recent efforts to use reversible covalent bonding to induce an intramolecular reaction, allowing for rate acceleration as well as control of the selectivity in the desymmetrization of 1,2-diols.
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Affiliation(s)
- Kian L. Tan
- Department of Chemistry, Boston College, 2609 Beacon St., Chestnut Hill, MA 02467, USA
| | - Xixi Sun
- Department of Chemistry, Boston College, 2609 Beacon St., Chestnut Hill, MA 02467, USA
| | - Amanda D. Worthy
- Department of Chemistry, Boston College, 2609 Beacon St., Chestnut Hill, MA 02467, USA
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27
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Murphy SK, Coulter MM, Dong VM. β-hydroxy ketones prepared by regioselective hydroacylation. Chem Sci 2012. [DOI: 10.1039/c1sc00634g] [Citation(s) in RCA: 61] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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28
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Murphy SK, Petrone DA, Coulter MM, Dong VM. Catalytic hydroacylation as an approach to homoaldol products. Org Lett 2011; 13:6216-9. [PMID: 22060018 DOI: 10.1021/ol202663p] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A method has been developed for the intermolecular hydroacylation of homoallyl alcohols with salicylaldehydes to furnish homoaldol products in 50-98% yields. The method also applies to the hydroacylation of 2-hydroxystyrenes. This work highlights the use of hydroacylation as a unified approach to both aldol and homoaldol products.
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Affiliation(s)
- Stephen K Murphy
- Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario M5S 3H6, Canada
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29
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Abstract
We have developed a ligand that reversibly binds to aniline substrates, allowing for the control of regioselectivity and enantioselectivity in hydroformylation. In this paper we address how the electronics of the aniline ring affect both the binding of the substrate to the ligand and the enantioselectivity in this reaction.
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Affiliation(s)
- Candice L Joe
- Boston College, 2609 Beacon Street, Chestnut Hill, Massachusetts 02467-3860, USA
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30
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Sun X, Worthy AD, Tan KL. Scaffolding catalysts: highly enantioselective desymmetrization reactions. Angew Chem Int Ed Engl 2011; 50:8167-71. [PMID: 21739552 PMCID: PMC3366164 DOI: 10.1002/anie.201103470] [Citation(s) in RCA: 78] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2011] [Indexed: 11/05/2022]
Abstract
Ex-changing places: a highly enantioselective desymmetrization of 1,2-diols has been developed in which the catalyst utilizes reversible covalent bonding to the substrate to achieve both high selectivity and rate acceleration (see scheme, PMP=pentalmethylpiperidine, TBS=tert-butyldimethylsilyl). Induced intramolecularity is responsible for the enhanced rate, thus allowing the reaction to be performed at room temperature.
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Affiliation(s)
- Xixi Sun
- Department of Chemistry, Boston College, 2609 Beacon St., Chestnut Hill, MA 02467-3860, Fax: (+)-617-552-6351
| | - Amanda D. Worthy
- Department of Chemistry, Boston College, 2609 Beacon St., Chestnut Hill, MA 02467-3860, Fax: (+)-617-552-6351
| | - Kian L. Tan
- Department of Chemistry, Boston College, 2609 Beacon St., Chestnut Hill, MA 02467-3860, Fax: (+)-617-552-6351
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Sun X, Worthy AD, Tan KL. Scaffolding Catalysts: Highly Enantioselective Desymmetrization Reactions. Angew Chem Int Ed Engl 2011. [DOI: 10.1002/ange.201103470] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Affiliation(s)
- Kian L. Tan
- Department of Chemistry, Merkert Chemistry Center, Boston College, Chestnut Hill, Massachusetts 02467, United States
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