1
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Gallen A, Riera A, Verdaguer X, Grabulosa A. Coordination chemistry and catalysis with secondary phosphine oxides. Catal Sci Technol 2019. [DOI: 10.1039/c9cy01501a] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Review on synthesis, coordination chemistry and catalysis with secondary phosphine oxides.
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Affiliation(s)
- Albert Gallen
- Departament de Química Inorgànica i Orgànica
- Secció de Química Inorgànica
- Universitat de Barcelona
- Barcelona
- Spain
| | - Antoni Riera
- Institute for Research in Biomedicine (IRB-Barcelona)
- The Barcelona Institute of Science and Technology
- Barcelona 08028
- Spain
- Departament de Química Inorgànica i Orgànica
| | - Xavier Verdaguer
- Institute for Research in Biomedicine (IRB-Barcelona)
- The Barcelona Institute of Science and Technology
- Barcelona 08028
- Spain
- Departament de Química Inorgànica i Orgànica
| | - Arnald Grabulosa
- Departament de Química Inorgànica i Orgànica
- Secció de Química Inorgànica
- Universitat de Barcelona
- Barcelona
- Spain
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2
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Cheng Q, Tu HF, Zheng C, Qu JP, Helmchen G, You SL. Iridium-Catalyzed Asymmetric Allylic Substitution Reactions. Chem Rev 2018; 119:1855-1969. [PMID: 30582688 DOI: 10.1021/acs.chemrev.8b00506] [Citation(s) in RCA: 442] [Impact Index Per Article: 73.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
In this review, we summarize the origin and advancements of iridium-catalyzed asymmetric allylic substitution reactions during the past two decades. Since the first report in 1997, Ir-catalyzed asymmetric allylic substitution reactions have attracted intense attention due to their exceptionally high regio- and enantioselectivities. Ir-catalyzed asymmetric allylic substitution reactions have been significantly developed in recent years in many respects, including ligand development, mechanistic understanding, substrate scope, and application in the synthesis of complex functional molecules. In this review, an explicit outline of ligands, mechanism, scope of nucleophiles, and applications is presented.
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Affiliation(s)
- Qiang Cheng
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry , University of Chinese Academy of Sciences, Chinese Academy of Sciences , 345 Lingling Lu , Shanghai 200032 , China
| | - Hang-Fei Tu
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry , University of Chinese Academy of Sciences, Chinese Academy of Sciences , 345 Lingling Lu , Shanghai 200032 , China
| | - Chao Zheng
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry , University of Chinese Academy of Sciences, Chinese Academy of Sciences , 345 Lingling Lu , Shanghai 200032 , China
| | - Jian-Ping Qu
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Jiangsu National Synergetic Innovation Center for Advanced Materials , Nanjing Tech University , Nanjing 211816 , China
| | - Günter Helmchen
- Organisch-Chemisches Institut der Ruprecht-Karls , Universität Heidelberg , Im Neuenheimer Feld 270 , D-69120 Heidelberg , Germany
| | - Shu-Li You
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry , University of Chinese Academy of Sciences, Chinese Academy of Sciences , 345 Lingling Lu , Shanghai 200032 , China
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3
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Kawatsura M, Minakawa M, Itoh T. Ruthenium-Catalyzed Stereoselective Allylic Substitutions. J SYN ORG CHEM JPN 2016. [DOI: 10.5059/yukigoseikyokaishi.74.45] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Motoi Kawatsura
- Department of Chemistry, College of Humanities & Sciences, Nihon University
| | - Maki Minakawa
- Department of Chemistry, College of Humanities & Sciences, Nihon University
| | - Toshiyuki Itoh
- Department of Chemistry and Biotechnology, Graduate School of Engineering, Center for Research on Green Sustainable Chemistry, Tottori University
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4
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Nemoto T, Hamada Y. Synthesis of Spirocyclic or Fused Cyclic Compounds Using Transition Metal-Catalyzed Dearomatization of Phenols. J SYN ORG CHEM JPN 2015. [DOI: 10.5059/yukigoseikyokaishi.73.977] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
| | - Yasumasa Hamada
- Graduate School of Pharmaceutical Sciences, Chiba University
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5
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Hu F, Kumpati BN, Lei X. Diaminophosphine oxides as preligands for Ni-catalyzed Suzuki cross-coupling reactions of aryl chlorides with arylboronic acids. Tetrahedron Lett 2014. [DOI: 10.1016/j.tetlet.2014.11.020] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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6
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Grange RL, Clizbe EA, Counsell EJ, Evans PA. Enantioselective construction of C-chiral allylic sulfilimines via the iridium-catalyzed allylic amination with S, S-diphenylsulfilimine: asymmetric synthesis of primary allylic amines. Chem Sci 2014; 6:777-781. [PMID: 28936319 PMCID: PMC5592745 DOI: 10.1039/c4sc01317d] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2014] [Accepted: 07/04/2014] [Indexed: 11/30/2022] Open
Abstract
We have devised a highly regio- and enantioselective iridium-catalyzed allylic amination reaction with the sulfur-stabilized aza-ylide, S,S-diphenylsulfilimine.
We have devised a highly regio- and enantioselective iridium-catalyzed allylic amination reaction with the sulfur-stabilized aza-ylide, S,S-diphenylsulfilimine. This process provides a robust and scalable method for the construction of aryl-, alkyl- and alkenyl-substituted C-chiral allylic sulfilimines, which are important functional groups for organic synthesis. Additionally, the combination of the allylic amination with an in situ deprotection of the sulfilimine constitutes a convenient one-pot protocol for the construction of chiral nonracemic primary allylic amines.
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Affiliation(s)
- Rebecca L Grange
- Queen's University , Department of Chemistry , 90 Bader Lane , Kingston , ON K7L 3N6 , Canada .
| | - Elizabeth A Clizbe
- The University of Liverpool , Department of Chemistry , Crown Street , Liverpool , L69 7ZD , UK
| | - Emma J Counsell
- The University of Liverpool , Department of Chemistry , Crown Street , Liverpool , L69 7ZD , UK
| | - P Andrew Evans
- Queen's University , Department of Chemistry , 90 Bader Lane , Kingston , ON K7L 3N6 , Canada .
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7
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Kawatsura M, Uchida K, Terasaki S, Tsuji H, Minakawa M, Itoh T. Ruthenium-Catalyzed Regio- and Enantioselective Allylic Amination of Racemic 1-Arylallyl Esters. Org Lett 2014; 16:1470-3. [DOI: 10.1021/ol5002768] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Motoi Kawatsura
- Department of Chemistry, College of Humanities & Sciences, Nihon University, Sakurajosui, Setagaya-ku, Tokyo 156-8550, Japan
| | - Kenta Uchida
- Department
of Chemistry and Biotechnology, Graduate School of Engineering, Tottori University, Koyama, Tottori 680-8552, Japan
| | - Shou Terasaki
- Department of Chemistry, College of Humanities & Sciences, Nihon University, Sakurajosui, Setagaya-ku, Tokyo 156-8550, Japan
| | - Hiroaki Tsuji
- Department
of Chemistry and Biotechnology, Graduate School of Engineering, Tottori University, Koyama, Tottori 680-8552, Japan
| | - Maki Minakawa
- Department of Chemistry, College of Humanities & Sciences, Nihon University, Sakurajosui, Setagaya-ku, Tokyo 156-8550, Japan
| | - Toshiyuki Itoh
- Department
of Chemistry and Biotechnology, Graduate School of Engineering, Tottori University, Koyama, Tottori 680-8552, Japan
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8
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Satyanarayana G, Helmchen G. Enantioselective Syntheses of Bicyclic Lactams Based on Iridium-Catalyzed Asymmetric Allylic Substitution and Heck Cyclization. European J Org Chem 2014. [DOI: 10.1002/ejoc.201301813] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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9
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Zheng C, You SL. Recent development of direct asymmetric functionalization of inert C–H bonds. RSC Adv 2014. [DOI: 10.1039/c3ra46996d] [Citation(s) in RCA: 468] [Impact Index Per Article: 46.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
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10
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Atallah T, Blankespoor RL, Homan P, Hulderman C, Samas BM, Van Allsburg K, Vrieze DC. Substituent effects on the amination of racemic allyl carbonates using commercially available chiral rhodium catalysts. Tetrahedron Lett 2013. [DOI: 10.1016/j.tetlet.2013.08.032] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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11
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Donets PA, Cramer N. Diaminophosphine Oxide Ligand Enabled Asymmetric Nickel-Catalyzed Hydrocarbamoylations of Alkenes. J Am Chem Soc 2013; 135:11772-5. [DOI: 10.1021/ja406730t] [Citation(s) in RCA: 120] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Pavel A. Donets
- Laboratory of Asymmetric Catalysis
and Synthesis, Institute
of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne,
Switzerland
| | - Nicolai Cramer
- Laboratory of Asymmetric Catalysis
and Synthesis, Institute
of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne,
Switzerland
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12
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Hoecker J, Rudolf GC, Bächle F, Fleischer S, Lindner BD, Helmchen G. Enantio- and Diastereoselective Syntheses of 3-Hydroxypiperidines through Iridium-Catalyzed Allylic Substitution. European J Org Chem 2013. [DOI: 10.1002/ejoc.201300445] [Citation(s) in RCA: 15] [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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13
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Dubovyk I, Watson IDG, Yudin AK. Achieving Control over the Branched/Linear Selectivity in Palladium-Catalyzed Allylic Amination. J Org Chem 2013; 78:1559-75. [DOI: 10.1021/jo3025253] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Igor Dubovyk
- Davenport Research Laboratories, Department of Chemistry, The University of Toronto, 80 St George Street, Toronto,
Canada M5S 3H6
| | - Iain D. G. Watson
- Davenport Research Laboratories, Department of Chemistry, The University of Toronto, 80 St George Street, Toronto,
Canada M5S 3H6
| | - Andrei K. Yudin
- Davenport Research Laboratories, Department of Chemistry, The University of Toronto, 80 St George Street, Toronto,
Canada M5S 3H6
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14
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Tosatti P, Nelson A, Marsden SP. Recent advances and applications of iridium-catalysed asymmetric allylic substitution. Org Biomol Chem 2012; 10:3147-63. [PMID: 22407450 DOI: 10.1039/c2ob07086c] [Citation(s) in RCA: 200] [Impact Index Per Article: 16.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Since their discovery in 1997, iridium-catalysed asymmetric allylic substitutions have been developed into a broadly applicable tool for the synthesis of chiral building blocks via C-C and C-heteroatom bond formation. The remarkable generality of these reactions and the high levels of regio- and enantioselectivity that are usually obtained in favour of the branched products have been made possible by a thorough investigation of the catalyst system and its mode of action. Therefore, today the Ir-catalysed asymmetric allylic substitution is a powerful reaction in the organic chemist's repertoire and has been used extensively for several applications. This article aims to provide an overview of the development of iridium catalysts derived from an Ir salt and a chiral phosphoramidite and their application to the enantioselective synthesis of natural products and biologically relevant compounds.
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Affiliation(s)
- Paolo Tosatti
- School of Chemistry, University of Leeds, Leeds, LS2 9JT, UK.
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15
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Hamada Y. Development of New Methods in Organic Synthesis and Their Applications to the Synthesis of Biologically Interesting Natural Products. Chem Pharm Bull (Tokyo) 2012; 60:1-20. [DOI: 10.1248/cpb.60.1] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Yasumasa Hamada
- Graduate School of Pharmaceutical Sciences, Chiba University
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16
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Satyanarayana G, Pflästerer D, Helmchen G. Enantioselective Syntheses of Tetrahydroquinolines Based on Iridium-Catalyzed Allylic Substitutions: Total Syntheses of (+)-Angustureine and (-)-Cuspareine. European J Org Chem 2011. [DOI: 10.1002/ejoc.201100981] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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17
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18
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19
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Harada T, Nemoto T, Jin L, Hamada Y. Synthesis of Novel Bidentate P-Chiral Diaminophosphine Oxide Preligands: Application to Pd-Catalyzed Asymmetric Allylic Substitution Reactions. Chem Pharm Bull (Tokyo) 2011; 59:412-5. [DOI: 10.1248/cpb.59.412] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Teisuke Harada
- Graduate School of Pharmaceutical Sciences, Chiba University
| | | | - Long Jin
- Graduate School of Pharmaceutical Sciences, Chiba University
| | - Yasumasa Hamada
- Graduate School of Pharmaceutical Sciences, Chiba University
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20
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Miyabe H, Moriyama K, Takemoto Y. Regio- and Enantioselective Allylic Substitution with Less Active N- or O-Nucleophiles Catalyzed by Iridium-Complex of Bis(oxazolinyl)pyridine. Chem Pharm Bull (Tokyo) 2011; 59:714-20. [DOI: 10.1248/cpb.59.714] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Hideto Miyabe
- Graduate School of Pharmaceutical Sciences, Kyoto University
- School of Pharmacy, Hyogo University of Health Sciences
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21
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Nemoto T, Hamada Y. Development of Transition Metal-Catalyzed Asymmetric Reactions Using Chiral Diaminophosphine Oxide Preligands and Their Applications. J SYN ORG CHEM JPN 2011. [DOI: 10.5059/yukigoseikyokaishi.69.763] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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22
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23
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Stanley LM, Hartwig JF. Regio- and enantioselective N-allylations of imidazole, benzimidazole, and purine heterocycles catalyzed by single-component metallacyclic iridium complexes. J Am Chem Soc 2009; 131:8971-83. [PMID: 19480431 DOI: 10.1021/ja902243s] [Citation(s) in RCA: 128] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Highly regio- and enantioselective iridium-catalyzed N-allylations of benzimidazoles, imidazoles, and purines have been developed. N-Allylated benzimidazoles and imidazoles were isolated in high yields (up to 97%) with high branched-to-linear selectivity (up to 99:1) and enantioselectivity (up to 98% ee) from the reactions of benzimidazole and imidazole nucleophiles with unsymmetrical allylic carbonates in the presence of single component, ethylene-bound, metallacyclic iridium catalysts. N-Allylated purines were also obtained in high yields (up to 91%) with high N9/N7 selectivity (up to 96:4), high branched-to-linear selectivity (98:2), and high enantioselectivity (up to 98% ee) under similar conditions. The reactions encompass a range of benzimidazole, imidazole, and purine nucleophiles, as well as a variety of unsymmetrical aryl, heteroaryl, and aliphatic allylic carbonates. Competition experiments between common amine nucleophiles and the heterocyclic nitrogen nucleophiles studied in this work illustrate the effect of nucleophile pK(a) on the rate of iridium-catalyzed N-allylation reactions. Kinetic studies on the allylation of benzimidazole catalyzed by metallacyclic iridium-phosphoramidite complexes, in combination with studies on the deactivation of these catalysts in the presence of heterocyclic nucleophiles, provide insight into the effects of the structures of the phosphoramidite ligands on the stability of the metallacyclic catalysts. The data obtained from these studies have led to the development of N-allylations of benzimidazoles and imidazoles in the absence of an exogenous base.
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Affiliation(s)
- Levi M Stanley
- Department of Chemistry, University of Illinois, 600 South Mathews Avenue, Urbana, Illinois 61801, USA
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24
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Nemoto T, Kanematsu M, Tamura S, Hamada Y. Palladium-Catalyzed Asymmetric Allylic Alkylation of 2,3-Allenyl Acetates Using a Chiral Diaminophosphine Oxide. Adv Synth Catal 2009. [DOI: 10.1002/adsc.200900151] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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25
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Miyabe H, Matsumura A, Yoshida K, Takemoto Y. Synthesis of chiral oxime ethers based on regio- and enantioselective allylic substitution catalyzed by iridium–pybox complex. Tetrahedron 2009. [DOI: 10.1016/j.tet.2009.04.005] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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26
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Cheruku P, Church TL, Trifonova A, Wartmann T, Andersson PG. Access to chiral tertiary amines via the iridium-catalyzed asymmetric hydrogenation of enamines. Tetrahedron Lett 2008. [DOI: 10.1016/j.tetlet.2008.10.035] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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27
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Nemoto T, Tamura S, Sakamoto T, Hamada Y. Pd-catalyzed asymmetric allylic aminations with aromatic amine nucleophiles using chiral diaminophosphine oxides: DIAPHOXs. ACTA ACUST UNITED AC 2008. [DOI: 10.1016/j.tetasy.2008.07.015] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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28
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Pd-catalyzed asymmetric allylic alkylation of 2-substituted cycloalkenyl carbonates using a chiral diaminophosphine oxide: (S,RP)-Ph-DIAPHOX. ACTA ACUST UNITED AC 2008. [DOI: 10.1016/j.tetasy.2008.03.027] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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29
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Liu WB, He H, Dai LX, You SL. Ir-Catalyzed Regio- and Enantioselective Friedel–Crafts-Type Allylic Alkylation of Indoles. Org Lett 2008; 10:1815-8. [DOI: 10.1021/ol800409d] [Citation(s) in RCA: 129] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Wen-Bo Liu
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 354 Fenglin Lu, Shanghai 200032, China
| | - Hu He
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 354 Fenglin Lu, Shanghai 200032, China
| | - Li-Xin Dai
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 354 Fenglin Lu, Shanghai 200032, China
| | - Shu-Li You
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 354 Fenglin Lu, Shanghai 200032, China
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30
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Nemoto T. Transition Metal-Catalyzed Asymmetric Reactions Using P-Chirogenic Diaminophosphine Oxides: DIAPHOXs. Chem Pharm Bull (Tokyo) 2008; 56:1213-28. [DOI: 10.1248/cpb.56.1213] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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31
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Nomura N, Komiyama S, Kasugai H, Saba M. An efficient protocol of iridium-catalyzed allylic substitution reaction and its application to polymer synthesis: complementary regio- and stereoselective allylation polycondensation via Ir and Pd catalyses. J Am Chem Soc 2008; 130:812-4. [PMID: 18166052 DOI: 10.1021/ja076019k] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
An efficient protocol of the Ir-catalyzed allylic substitution reaction is reported using N,O-bis(trimethylsilyl)acetamide as a base in the presence of nBu4NF as a cocatalyst. The reaction completely proceeded under very mild conditions, and a branched allylated compound that is not easy to access via the Tsuji-Trost reaction can be synthesized. The reaction system is practical enough to be applicable for polymer syntheses. The Ir- and Pd-catalyzed allylation polycondensations generally show complementary regio- and stereoselectivities. The Ir-catalyzed reaction is versatile, and a mixed dual regioselectivity such as a branched-linear selectivity on each electrophile can also be achieved.
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Affiliation(s)
- Nobuyoshi Nomura
- Laboratory of Polymer Chemistry, Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya 464-8601, Japan.
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32
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Dubovyk I, Watson IDG, Yudin AK. Chasing the Proton Culprit from Palladium-Catalyzed Allylic Amination. J Am Chem Soc 2007; 129:14172-3. [PMID: 17960935 DOI: 10.1021/ja076659n] [Citation(s) in RCA: 79] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Igor Dubovyk
- Davenport Research Laboratories, Department of Chemistry, The University of Toronto, 80 St. George Street, Toronto, Ontario, Canada M5S 3H6
| | - Iain D. G. Watson
- Davenport Research Laboratories, Department of Chemistry, The University of Toronto, 80 St. George Street, Toronto, Ontario, Canada M5S 3H6
| | - Andrei K. Yudin
- Davenport Research Laboratories, Department of Chemistry, The University of Toronto, 80 St. George Street, Toronto, Ontario, Canada M5S 3H6
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33
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Pd-catalyzed enantioselective synthesis of quaternary α-amino acid derivatives using a phenylalanine-derived P-chirogenic diaminophosphine oxide. Tetrahedron Lett 2007. [DOI: 10.1016/j.tetlet.2007.07.020] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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34
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Synthesis of novel P-stereogenic phenylphosphonamides and their application to Lewis base-catalyzed asymmetric allylation of benzaldehyde. ACTA ACUST UNITED AC 2007. [DOI: 10.1016/j.tetasy.2007.08.006] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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35
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Nemoto T, Sakamoto T, Fukuyama T, Hamada Y. Ir-catalyzed asymmetric allylic alkylation using chiral diaminophosphine oxides: DIAPHOXs. Formal enantioselective synthesis of (−)-paroxetine. Tetrahedron Lett 2007. [DOI: 10.1016/j.tetlet.2007.05.120] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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36
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Nemoto T, Fukuyama T, Yamamoto E, Tamura S, Fukuda T, Matsumoto T, Akimoto Y, Hamada Y. Pd-Catalyzed Asymmetric Allylic Amination of Morita−Baylis−Hillman Adduct Derivatives Using Chiral Diaminophosphine Oxides: DIAPHOXs. Org Lett 2007; 9:927-30. [PMID: 17284046 DOI: 10.1021/ol0700207] [Citation(s) in RCA: 73] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
[reaction: see text] Asymmetric allylic amination of allylic carbonates prepared from racemic Morita-Baylis-Hillman adducts proceeded in the presence of Pd catalyst, chiral diaminophosphine oxide (DIAPHOX), and BSA, affording the corresponding chiral aza-Morita-Baylis-Hillman adduct derivatives in excellent yield with up to 99% ee. The cyclic reaction products could be converted into various synthetically useful compounds such as chiral cyclic beta-amino acids.
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Affiliation(s)
- Tetsuhiro Nemoto
- Graduate School of Pharmaceutical Sciences, Chiba University, Chiba 263-8522, Japan
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Nemoto T, Hamada Y. Pd-catalyzed asymmetric allylic substitution reactions using P-chirogenic diaminophosphine oxides: DIAPHOXs. CHEM REC 2007; 7:150-8. [PMID: 17551947 DOI: 10.1002/tcr.20108] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
This paper describes the development of a new class of chiral phosphorus ligand: aspartic acid-derived P-chirogenic diaminophosphine oxides, DIAPHOXs, and their application to several Pd-catalyzed asymmetric allylic substitution reactions. Pd-catalyzed asymmetric allylic alkylation was initially examined in detail using diaminophosphine oxides 1a, resulting in the highly enantioselective construction of quaternary stereocenters. Mechanistic investigations revealed that 1a is activated by N,O-bis(trimethylsilyl)acetamide-induced tautomerization to afford a trivalent diamidophosphite species 12, which functions as the actual ligand. Furthermore, asymmetric allylic amination was examined using Pd-DIAPHOX catalyst systems, providing a variety of chiral allylic amines.
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Affiliation(s)
- Tetsuhiro Nemoto
- Graduate School of Pharmaceutical Sciences, Chiba University, Chiba 263-8522, Japan
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