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Qi H, Wang L, Sun Q, Sun W. Asymmetric transfer hydrogenation of quinoline derivatives catalyzed by chiral iridium-imidazoline complex in water. MOLECULAR CATALYSIS 2022. [DOI: 10.1016/j.mcat.2022.112715] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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2
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Aponick A, Dahiya G, Abboud KA. Tuning StackPhim Ligands: Applications in Enantioselective Borylation and Alkynylation. SYNTHESIS-STUTTGART 2022. [DOI: 10.1055/a-1730-2473] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
AbstractHere we present a new stack ligand with a modified imidazoline backbone prepared from cyclohexanediamine. This new stack ligand, Cy-StackPhim, has been found to complement the parent StackPhim ligand in an enantioselective borylation reaction. Additionally, a correlation between the nature of substituents on the imidazoline ring and the substituents on the electrophile is also discussed.
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Affiliation(s)
- Aaron Aponick
- Center for Heterocyclic Compounds, Department of Chemistry, University of Florida
| | - Gaurav Dahiya
- Center for Heterocyclic Compounds, Department of Chemistry, University of Florida
| | - Khalil A. Abboud
- Center for X-ray Crystallography, Department of Chemistry, University of Florida
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3
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Pàmies O, Margalef J, Cañellas S, James J, Judge E, Guiry PJ, Moberg C, Bäckvall JE, Pfaltz A, Pericàs MA, Diéguez M. Recent Advances in Enantioselective Pd-Catalyzed Allylic Substitution: From Design to Applications. Chem Rev 2021; 121:4373-4505. [PMID: 33739109 PMCID: PMC8576828 DOI: 10.1021/acs.chemrev.0c00736] [Citation(s) in RCA: 219] [Impact Index Per Article: 73.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Indexed: 12/30/2022]
Abstract
This Review compiles the evolution, mechanistic understanding, and more recent advances in enantioselective Pd-catalyzed allylic substitution and decarboxylative and oxidative allylic substitutions. For each reaction, the catalytic data, as well as examples of their application to the synthesis of more complex molecules, are collected. Sections in which we discuss key mechanistic aspects for high selectivity and a comparison with other metals (with advantages and disadvantages) are also included. For Pd-catalyzed asymmetric allylic substitution, the catalytic data are grouped according to the type of nucleophile employed. Because of the prominent position of the use of stabilized carbon nucleophiles and heteronucleophiles, many chiral ligands have been developed. To better compare the results, they are presented grouped by ligand types. Pd-catalyzed asymmetric decarboxylative reactions are mainly promoted by PHOX or Trost ligands, which justifies organizing this section in chronological order. For asymmetric oxidative allylic substitution the results are grouped according to the type of nucleophile used.
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Affiliation(s)
- Oscar Pàmies
- Universitat
Rovira i Virgili, Departament de
Química Física i Inorgànica, C/Marcel·lí Domingo, 1, 43007 Tarragona, Spain
| | - Jèssica Margalef
- Universitat
Rovira i Virgili, Departament de
Química Física i Inorgànica, C/Marcel·lí Domingo, 1, 43007 Tarragona, Spain
| | - Santiago Cañellas
- Discovery
Sciences, Janssen Research and Development, Janssen-Cilag, S.A. Jarama 75A, 45007, Toledo, Spain
| | - Jinju James
- Centre
for Synthesis and Chemical Biology, School of Chemistry, University College Dublin, Belfield, Dublin 4, Ireland
| | - Eric Judge
- Centre
for Synthesis and Chemical Biology, School of Chemistry, University College Dublin, Belfield, Dublin 4, Ireland
| | - Patrick J. Guiry
- Centre
for Synthesis and Chemical Biology, School of Chemistry, University College Dublin, Belfield, Dublin 4, Ireland
| | - Christina Moberg
- KTH
Royal Institute of Technology, Department of Chemistry, Organic Chemistry, SE 100 44 Stockholm, Sweden
| | - Jan-E. Bäckvall
- Department
of Organic Chemistry, Arrhenius Laboratory, Stockholm University, SE 106 91 Stockholm, Sweden
| | - Andreas Pfaltz
- Department
of Chemistry, University of Basel. St. Johanns-Ring 19, 4056 Basel, Switzerland
| | - Miquel A. Pericàs
- Institute
of Chemical Research of Catalonia (ICIQ), The Barcelona Institute of Science and Technology, Av. Països Catalans 16, 43007 Tarragona, Spain
- Departament
de Química Inorgànica i Orgànica, Universitat de Barcelona. 08028 Barcelona, Spain
| | - Montserrat Diéguez
- Universitat
Rovira i Virgili, Departament de
Química Física i Inorgànica, C/Marcel·lí Domingo, 1, 43007 Tarragona, Spain
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4
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Liu K, Kong X, Ma Y, Lin W. Rational Design of a Robust Fluorescent Probe for the Detection of Endogenous Carbon Monoxide in Living Zebrafish Embryos and Mouse Tissue. Angew Chem Int Ed Engl 2017; 56:13489-13492. [DOI: 10.1002/anie.201707518] [Citation(s) in RCA: 106] [Impact Index Per Article: 15.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2017] [Revised: 08/23/2017] [Indexed: 01/12/2023]
Affiliation(s)
- Keyin Liu
- Institute of Fluorescent Probes for Biological Imaging; School of Chemistry and Chemical Engineering; School of Materials Science and Engineering; University of Jinan; 250022 Jinan Shandong China
| | - Xiuqi Kong
- Institute of Fluorescent Probes for Biological Imaging; School of Chemistry and Chemical Engineering; School of Materials Science and Engineering; University of Jinan; 250022 Jinan Shandong China
| | - Yanyan Ma
- Institute of Fluorescent Probes for Biological Imaging; School of Chemistry and Chemical Engineering; School of Materials Science and Engineering; University of Jinan; 250022 Jinan Shandong China
| | - Weiying Lin
- Institute of Fluorescent Probes for Biological Imaging; School of Chemistry and Chemical Engineering; School of Materials Science and Engineering; University of Jinan; 250022 Jinan Shandong China
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5
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Liu K, Kong X, Ma Y, Lin W. Rational Design of a Robust Fluorescent Probe for the Detection of Endogenous Carbon Monoxide in Living Zebrafish Embryos and Mouse Tissue. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201707518] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Keyin Liu
- Institute of Fluorescent Probes for Biological Imaging; School of Chemistry and Chemical Engineering; School of Materials Science and Engineering; University of Jinan; 250022 Jinan Shandong China
| | - Xiuqi Kong
- Institute of Fluorescent Probes for Biological Imaging; School of Chemistry and Chemical Engineering; School of Materials Science and Engineering; University of Jinan; 250022 Jinan Shandong China
| | - Yanyan Ma
- Institute of Fluorescent Probes for Biological Imaging; School of Chemistry and Chemical Engineering; School of Materials Science and Engineering; University of Jinan; 250022 Jinan Shandong China
| | - Weiying Lin
- Institute of Fluorescent Probes for Biological Imaging; School of Chemistry and Chemical Engineering; School of Materials Science and Engineering; University of Jinan; 250022 Jinan Shandong China
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6
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Cannon JS, Overman LE. Palladium(II)-Catalyzed Enantioselective Reactions Using COP Catalysts. Acc Chem Res 2016; 49:2220-2231. [PMID: 27689745 DOI: 10.1021/acs.accounts.6b00398] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Allylic amides, amines, and esters are key synthetic building blocks. Their enantioselective syntheses under mild conditions is a continuing pursuit of organic synthesis methods development. One opportunity for the synthesis of these building blocks is by functionalization of prochiral double bonds using palladium(II) catalysis. In these reactions, nucleopalladation mediated by a chiral palladium(II) catalyst generates a new heteroatom-substituted chiral center. However, reactions where nucleopalladation occurs with antarafacial stereoselectivity are difficult to render enantioselective because of the challenge of transferring chiral ligand information across the square-planar palladium complex to the incoming nucleophile. In this Account, we describe the development and use of enantiopure palladium(II) catalysts of the COP (chiral cobalt oxazoline palladacyclic) family for the synthesis of enantioenriched products from starting materials derived from prochiral allylic alcohols. We begin with initial studies aimed at rendering catalyzed [3,3]-sigmatropic rearrangements of allylic imidates enantioselective, which ultimately led to the identification of the significant utility of the COP family of Pd(II) catalysts. The first use of an enantioselective COP catalyst was reported by Richards' and our laboratories in 2003 for the enantioselective rearrangement of allylic N-arylimidates. Shortly thereafter, we discovered that the chloride-bridged COP dimer, [COP-Cl]2, was an excellent enantioselective catalyst for the rearrangement of (E)-allylic trichloroacetimidates to enantioenriched allylic trichloroacetamides, this conversion being the most widely used of the allylic imidate rearrangements. We then turn to discuss SN2' reactions catalyzed by the acetate-bridged COP dimer, [COP-OAc]2, which proceed by a unique mechanism to provide branched allylic esters and allylic phenyl ethers in high enantioselectivity. Furthermore, because of the unique nucleopalladation/deoxypalladation mechanism of these SN2' reactions, they provide exclusively the branched allylic product. Importantly, both enantiomers of the [COP-Cl]2 and [COP-OAc]2 catalysts are commercially available. We also briefly consider several other enantioselective reactions catalyzed by COP complexes. The mechanism of enantioselective COP-catalyzed allylic rearrangements and allylic substitutions is discussed in some detail. In both reactions, nucleopalladation is found to be the enantiodetermining step. The cyclobutadienyl "floor" of the COP catalyst is critical for transmitting chiral information across the palladium square plane in these reactions. This structural feature enables high enantioselection to be realized in spite of the nearly 180° angle between the catalyst, electrophile and nucleophile in the enantiodetermining step. Our discussion concludes by considering several uses of the COP family of catalysts by other researchers for the enantioselective synthesis of biologically active chiral molecules. We anticipate that additional uses for COP catalysts will emerge in the future. In addition, the structural features of these catalysts that we have identified as important for achieving high enantioselection should be useful in the future development of improved enantioselective Pd(II) catalysts.
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Affiliation(s)
- Jeffrey S. Cannon
- Department
of Chemistry, University of California, 1102 Natural Sciences II, Irvine, California 92697-2025, United States
| | - Larry E. Overman
- Department
of Chemistry, University of California, 1102 Natural Sciences II, Irvine, California 92697-2025, United States
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7
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Serin SC, Dake GR, Gates DP. Addition-Isomerization Polymerization of Chiral Phosphaalkenes: Observation of Styrene–Phosphaalkene Linkages in a Random Copolymer. Macromolecules 2016. [DOI: 10.1021/acs.macromol.6b00667] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- Spencer C. Serin
- Department of Chemistry, University of British Columbia, 2036
Main Mall, Vancouver, British
Columbia, Canada V6T 1Z1
| | - Gregory R. Dake
- Department of Chemistry, University of British Columbia, 2036
Main Mall, Vancouver, British
Columbia, Canada V6T 1Z1
| | - Derek P. Gates
- Department of Chemistry, University of British Columbia, 2036
Main Mall, Vancouver, British
Columbia, Canada V6T 1Z1
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8
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Huang S, Shao Y, Zhang L, Zhou X. Cycloamidination of Aminoalkenes with Nitriles: Synthesis of Substituted 2-Imidazolines and Tetrahydropyrimidines. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201508442] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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9
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Huang S, Shao Y, Zhang L, Zhou X. Cycloamidination of Aminoalkenes with Nitriles: Synthesis of Substituted 2‐Imidazolines and Tetrahydropyrimidines. Angew Chem Int Ed Engl 2015; 54:14452-6. [DOI: 10.1002/anie.201508442] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2015] [Indexed: 12/16/2022]
Affiliation(s)
- Shujian Huang
- Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, Shanghai 200433 (P.R. China)
| | - Yinlin Shao
- Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, Shanghai 200433 (P.R. China)
| | - Lixin Zhang
- Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, Shanghai 200433 (P.R. China)
| | - Xigeng Zhou
- Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, Shanghai 200433 (P.R. China)
- State Key Laboratory of Organometallic Chemistry, Shanghai 200032 (P.R. China)
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Tydlitát J, Bureš F, Růžičková Z. Phenylalanine-Derived Imidazolines Bearing Heteroaromatic Pendants: Synthesis, Characterization, and Application in the AsymmetricHenryReaction. Helv Chim Acta 2015. [DOI: 10.1002/hlca.201500128] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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11
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Zhang G, Zhang W, Luan Y, Han X, Ding C. PEG Click-Triazole Palladacycle: An Efficient Precatalyst for Palladium-Catalyzed Suzuki-Miyaura and Copper-free Sonogashira Reactions in Neat Water. CHINESE J CHEM 2015. [DOI: 10.1002/cjoc.201500167] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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12
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See Leng Yap J, Chen HJ, Li Y, Pullarkat SA, Leung PH. Synthesis, Optical Resolution, and Stereochemical Properties of a Rationally Designed Chiral C–N Palladacycle. Organometallics 2014. [DOI: 10.1021/om401044z] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Jeanette See Leng Yap
- Division of Chemistry & Biological Chemistry, School of Physical & Mathematical Sciences, Nanyang Technological University, Singapore 637371, Singapore
| | - Houguang Jeremy Chen
- Division of Chemistry & Biological Chemistry, School of Physical & Mathematical Sciences, Nanyang Technological University, Singapore 637371, Singapore
| | - Yongxin Li
- Division of Chemistry & Biological Chemistry, School of Physical & Mathematical Sciences, Nanyang Technological University, Singapore 637371, Singapore
| | - Sumod A. Pullarkat
- Division of Chemistry & Biological Chemistry, School of Physical & Mathematical Sciences, Nanyang Technological University, Singapore 637371, Singapore
| | - Pak-Hing Leung
- Division of Chemistry & Biological Chemistry, School of Physical & Mathematical Sciences, Nanyang Technological University, Singapore 637371, Singapore
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13
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Cassar DJ, Ilyashenko G, Ismail M, Woods J, Hughes DL, Richards CJ. Enantioselective synthesis and application to the allylic imidate rearrangement of amine-coordinated palladacycle catalysts of cobalt sandwich complexes. Chemistry 2013; 19:17951-62. [PMID: 24264943 PMCID: PMC4517145 DOI: 10.1002/chem.201302922] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2013] [Indexed: 11/30/2022]
Abstract
The reaction of (η(5)-(N,N-dimethylaminomethyl)cyclopentadien-yl)(η(4)-tetraphenylcyclobutadiene)cobalt with sodium tetrachloropalladate and (R)-N-acetylphenylalanine gave planar chiral palladacycle di-μ-chloridebis[(η(5)-(Sp)-2-(N,N-dimethylaminomethyl)cyclopentadienyl,1-C,3'-N)(η(4)-tetraphenylcyclobutadiene)cobalt]dipalladium [(Sp )-Me2 -CAP-Cl] in 92% ee and 64% yield. Enantiopurity (>98% ee) was achieved by purification of the monomeric (R)-proline adducts and conversion back to the chloride dimer. Treatment with AgOAc gave (Sp)-Me2-CAP-OAc which was applied to asymmetric transcyclopalladation (up to 78% ee). The (R)-N-acetylphenylalanine mediated palladation methodology was applicable also to the corresponding N,N-diethyl (82% ee, 39% yield) and pyrrolidinyl (>98% ee, 43% yield) cobalt sandwich complexes. A combination of 5 mol % of the latter [(Sp)-Pyrr-CAP-Cl] and AgNO3 (3.8 equiv) is a catalyst for the allylic imidate rearrangement of an (E)-N-aryltrifluoroacetimidate (up to 83% ee), and this catalyst system is also applicable to the rearrangement of a range of (E)-trichloroacetimidates (up to 99% ee). This asymmetric efficiency combined with the simplicity of catalyst synthesis provides accessible solutions to the generation of non-racemic allylic amine derivatives.
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Affiliation(s)
- Doyle J Cassar
- School of Chemistry, University of East Anglia, Norwich Research Park, Norwich, NR4 7TJ (UK)
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Le Bras J, Muzart J. β-Elimination competitions leading to CC bonds from alkylpalladium intermediates. Tetrahedron 2012. [DOI: 10.1016/j.tet.2012.09.076] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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15
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Xu B, Worrall K, Arndtsen BA. Palladium-catalyzed multicomponent synthesis of 2-imidazolines from imines and acid chlorides. Molecules 2012; 17:13759-68. [PMID: 23174894 PMCID: PMC6269033 DOI: 10.3390/molecules171213759] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2012] [Revised: 11/13/2012] [Accepted: 11/14/2012] [Indexed: 11/24/2022] Open
Abstract
We describe the palladium-catalyzed multicomponent synthesis of 2-imidazolines. This reaction proceeds via the coupling of imines, acid chlorides and carbon monoxide to form imidazolinium carboxylates, followed by a decarboxylation. Decarboxylation in CHCl3 is found to result in a mixture of imidazolinium and imidazolium salts. However, the addition of benzoic acid suppresses aromatization, and generates the trans-disubstituted imidazolines in good yield. Combining this reaction with subsequent nitrogen deprotection provides an overall synthesis of imidazolines from multiple available building blocks.
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Affiliation(s)
- Boran Xu
- Department of Chemistry, McGill University, 801 Sherbrooke Street West, Montreal, QC H3A 2K6, Canada.
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