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Wei H, Zhang Y, Jin S, Yu Y, Chen N, Xu J, Yang Z. PyBox-La(OTf) 3-Catalyzed Enantioselective Diels-Alder Cycloadditions of 2-Alkenoylpyridines with Cyclopentadiene. Molecules 2024; 29:2978. [PMID: 38998930 PMCID: PMC11243330 DOI: 10.3390/molecules29132978] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2024] [Revised: 06/19/2024] [Accepted: 06/19/2024] [Indexed: 07/14/2024] Open
Abstract
The PyBox-La(OTf)3-catalyzed enantioselective Diels-Alder cycloaddition of 2-alk-2-enoylpyridines with cyclopentadiene is realized, producing enantiopure disubstituted norbornenes, which possess four contiguous stereocenters and are biologically relevant structures in up to 92:8 dr and 99:1 er.
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Affiliation(s)
- Hao Wei
- Department of Organic Chemistry, College of Chemistry, Beijing University of Chemical Technology, Beijing 100029, China
| | - Yujie Zhang
- Department of Organic Chemistry, College of Chemistry, Beijing University of Chemical Technology, Beijing 100029, China
| | - Sanlin Jin
- Department of Organic Chemistry, College of Chemistry, Beijing University of Chemical Technology, Beijing 100029, China
| | - Ying Yu
- China United Test & Certification Co., Ltd., Beijing 100088, China
| | - Ning Chen
- Department of Organic Chemistry, College of Chemistry, Beijing University of Chemical Technology, Beijing 100029, China
| | - Jiaxi Xu
- Department of Organic Chemistry, College of Chemistry, Beijing University of Chemical Technology, Beijing 100029, China
| | - Zhanhui Yang
- Department of Organic Chemistry, College of Chemistry, Beijing University of Chemical Technology, Beijing 100029, China
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2
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Zalevskaya OA, Gur'eva YA, Kutchin AV. Terpene ligands in the coordination chemistry: synthesis of metal complexes, stereochemistry, catalytic properties and biological activity. RUSSIAN CHEMICAL REVIEWS 2019. [DOI: 10.1070/rcr4880] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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3
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Sarkar M, Pandey P, Bera JK. Chiral 1,8-naphthyridine based ligands: Syntheses and characterization of Di- and tetranuclear copper (I) and silver (I) complexes. Inorganica Chim Acta 2019. [DOI: 10.1016/j.ica.2018.11.014] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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4
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Aouaidjia F, Messai A, Siab R, Ayesh AI. A new tetranuclear copper(II) complex using a Schiff base ligand: Synthesis, structural, and magnetic studies. Polyhedron 2017. [DOI: 10.1016/j.poly.2017.05.043] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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5
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Bryliakov KP. Catalytic Asymmetric Oxygenations with the Environmentally Benign Oxidants H2O2 and O2. Chem Rev 2017; 117:11406-11459. [DOI: 10.1021/acs.chemrev.7b00167] [Citation(s) in RCA: 226] [Impact Index Per Article: 32.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Konstantin P. Bryliakov
- Novosibirsk State University, Pirogova 2, Novosibirsk 630090, Russian Federation
- Boreskov Institute of Catalysis, Pr. Lavrentieva 5, Novosibirsk 630090, Russian Federation
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6
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Poh JS, Makai S, von Keutz T, Tran DN, Battilocchio C, Pasau P, Ley SV. Rapid Asymmetric Synthesis of Disubstituted Allenes by Coupling of Flow-Generated Diazo Compounds and Propargylated Amines. Angew Chem Int Ed Engl 2017; 56:1864-1868. [PMID: 28075518 PMCID: PMC5363227 DOI: 10.1002/anie.201611067] [Citation(s) in RCA: 63] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2016] [Revised: 12/19/2016] [Indexed: 11/16/2022]
Abstract
We report herein the asymmetric coupling of flow‐generated unstabilized diazo compounds and propargylated amine derivatives, using a new pyridinebis(imidazoline) ligand, a copper catalyst and base. The reaction proceeds rapidly, generating chiral allenes in 10–20 minutes with high enantioselectivity (89–98 % de/ee), moderate yields and a wide functional group tolerance.
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Affiliation(s)
- Jian-Siang Poh
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, CB2 1EW, UK
| | - Szabolcs Makai
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, CB2 1EW, UK
| | - Timo von Keutz
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, CB2 1EW, UK
| | - Duc N Tran
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, CB2 1EW, UK
| | - Claudio Battilocchio
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, CB2 1EW, UK
| | - Patrick Pasau
- UCB Biopharma SPRL, Chemical Research R5, Chemin du Foriest, 1420, Braine-L'Alleud, Belgium
| | - Steven V Ley
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, CB2 1EW, UK
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7
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Poh JS, Makai S, von Keutz T, Tran DN, Battilocchio C, Pasau P, Ley SV. Rapid Asymmetric Synthesis of Disubstituted Allenes by Coupling of Flow-Generated Diazo Compounds and Propargylated Amines. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201611067] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Jian-Siang Poh
- Department of Chemistry; University of Cambridge; Lensfield Road Cambridge CB2 1EW UK
| | - Szabolcs Makai
- Department of Chemistry; University of Cambridge; Lensfield Road Cambridge CB2 1EW UK
| | - Timo von Keutz
- Department of Chemistry; University of Cambridge; Lensfield Road Cambridge CB2 1EW UK
| | - Duc N. Tran
- Department of Chemistry; University of Cambridge; Lensfield Road Cambridge CB2 1EW UK
| | - Claudio Battilocchio
- Department of Chemistry; University of Cambridge; Lensfield Road Cambridge CB2 1EW UK
| | - Patrick Pasau
- UCB Biopharma SPRL; Chemical Research R5; Chemin du Foriest 1420 Braine-L'Alleud Belgium
| | - Steven V. Ley
- Department of Chemistry; University of Cambridge; Lensfield Road Cambridge CB2 1EW UK
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8
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9
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Isozaki K, Yokoi T, Yoshida R, Ogata K, Hashizume D, Yasuda N, Sadakane K, Takaya H, Nakamura M. Synthesis and Applications of (ONO Pincer)Ruthenium-Complex-Bound Norvalines. Chem Asian J 2016; 11:1076-91. [PMID: 26879368 PMCID: PMC5069454 DOI: 10.1002/asia.201600045] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2016] [Indexed: 11/20/2022]
Abstract
Two (ONO pincer)ruthenium-complex-bound norvalines, Boc-[Ru(pydc)(terpy)]Nva-OMe (1; Boc=tert-butyloxycarbonyl, terpy=terpyridyl, Nva=norvaline) and Boc-[Ru(pydc)(tBu-terpy)]Nva-OMe (5), were successfully synthesized and their molecular structures and absolute configurations were unequivocally determined by single-crystal X-ray diffraction. The robustness of the pincer Ru complexes and norvaline scaffolds against acidic/basic, oxidizing, and high-temperature conditions enabled us to perform selective transformations of the N-Boc and C-OMe termini into various functional groups, such as alkyl amide, alkyl urea, and polyether groups, without the loss of the Ru center or enantiomeric purity. The resulting dialkylated Ru-bound norvaline, n-C11 H23 CO-l-[Ru(pydc)(terpy)]Nva-NH-n-C11 H23 (l-4) was found to have excellent self-assembly properties in organic solvents, thereby affording the corresponding supramolecular gels. Ru-bound norvaline l-1 exhibited a higher catalytic activity for the oxidation of alcohols by H2 O2 than parent complex [Ru(pydc)(terpy)] (11 a).
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Affiliation(s)
- Katsuhiro Isozaki
- International Research Center for Elements Science, Institute for Chemical Research, Kyoto University, Gokasho, Uji, Kyoto, 611-0011, Japan), Fax: (+81) 774-38-3186.
- Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto, 615-8510, Japan.
- JST CREST, Japan.
| | - Tomoya Yokoi
- International Research Center for Elements Science, Institute for Chemical Research, Kyoto University, Gokasho, Uji, Kyoto, 611-0011, Japan), Fax: (+81) 774-38-3186
- Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto, 615-8510, Japan
| | - Ryota Yoshida
- International Research Center for Elements Science, Institute for Chemical Research, Kyoto University, Gokasho, Uji, Kyoto, 611-0011, Japan), Fax: (+81) 774-38-3186
- Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto, 615-8510, Japan
| | - Kazuki Ogata
- International Research Center for Elements Science, Institute for Chemical Research, Kyoto University, Gokasho, Uji, Kyoto, 611-0011, Japan), Fax: (+81) 774-38-3186
- Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto, 615-8510, Japan
| | - Daisuke Hashizume
- Materials Characterization Support Unit, RIKEN Center for Emergent Matter Science (CEMS), Wako, Saitama, 351-0198, Japan
| | | | - Koichiro Sadakane
- Department of Biomedical Information Faculty of Life and Medical Sciences, Doshisha University, 1-3 Tatara Miyakotani, Kyotanabe, Kyoto, 610-0321, Japan
| | - Hikaru Takaya
- International Research Center for Elements Science, Institute for Chemical Research, Kyoto University, Gokasho, Uji, Kyoto, 611-0011, Japan), Fax: (+81) 774-38-3186.
- Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto, 615-8510, Japan.
| | - Masaharu Nakamura
- International Research Center for Elements Science, Institute for Chemical Research, Kyoto University, Gokasho, Uji, Kyoto, 611-0011, Japan), Fax: (+81) 774-38-3186.
- Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto, 615-8510, Japan.
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10
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Krishnan KK, Thomas AM, Sindhu KS, Anilkumar G. Recent advances and perspectives in the manganese-catalysed epoxidation reactions. Tetrahedron 2016. [DOI: 10.1016/j.tet.2015.11.003] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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11
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Hao XQ, Dong YN, Gao B, Li K, Zhao XM, Xu Y, Song MP. Biimidazoline ligands for palladium-catalyzed asymmetric allylic alkylation. ACTA ACUST UNITED AC 2015. [DOI: 10.1016/j.tetasy.2015.10.007] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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12
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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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13
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Wang Y, Duan L, Wang L, Chen H, Sun J, Sun L, Ahlquist MSG. Alkene Epoxidation Catalysts [Ru(pdc)(tpy)] and [Ru(pdc)(pybox)] Revisited: Revealing a Unique RuIV═O Structure from a Dimethyl Sulfoxide Coordinating Complex. ACS Catal 2015. [DOI: 10.1021/acscatal.5b00496] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Ying Wang
- Division
of Theoretical Chemistry and Biology, School of Biotechnology, KTH Royal Institute of Technology, 10691 Stockholm, Sweden
| | - Lele Duan
- Department
of Chemistry, School of Chemical Science and Engineering, KTH Royal Institute of Technology, SE-100 44 Stockholm, Sweden
| | - Lei Wang
- Department
of Chemistry, School of Chemical Science and Engineering, KTH Royal Institute of Technology, SE-100 44 Stockholm, Sweden
| | - Hong Chen
- Berzelii
Center EXSELENT on Porous Materials and Department of Materials and
Environmental Chemistry, Stockholm University, SE-106 91 Stockholm, Sweden
- Faculty
of Material Science and Chemistry, China University of Geosciences, 430074, Wuhan, China
| | - Junliang Sun
- Berzelii
Center EXSELENT on Porous Materials and Department of Materials and
Environmental Chemistry, Stockholm University, SE-106 91 Stockholm, Sweden
| | - Licheng Sun
- Department
of Chemistry, School of Chemical Science and Engineering, KTH Royal Institute of Technology, SE-100 44 Stockholm, Sweden
- State
Key Lab of Fine Chemicals, DUT-KTH Joint Education and Research Center
on Molecular Devices, Dalian University of Technology (DUT), 116024 Dalian, China
| | - Mårten S. G. Ahlquist
- Division
of Theoretical Chemistry and Biology, School of Biotechnology, KTH Royal Institute of Technology, 10691 Stockholm, Sweden
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14
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Zhilina EF, Chizhov DL, Sidorov AA, Aleksandrov GG, Kiskin M, Slepukhin PA, Fedin M, Starichenko DV, Korolev AV, Shvachko YN, Eremenko IL, Charushin VN. Neutral tetranuclear Cu(II) complex of 2,6-di(5-trifluoromethylpyrazol-3-yl)pyridine: Synthesis, characterization and its transformation with selected aza-ligands. Polyhedron 2013. [DOI: 10.1016/j.poly.2013.01.021] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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15
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Geden JV, Pancholi AK, Shipman M. Palladium-Catalyzed Multicomponent Synthesis of 2-Aryl-2-imidazolines from Aryl Halides and Diamines. J Org Chem 2013; 78:4158-64. [DOI: 10.1021/jo400252n] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Joanna V. Geden
- Department of Chemistry, University of Warwick, Gibbet Hill Road, Coventry CV4 7AL, United
Kingdom
| | - Alpa K. Pancholi
- Department of Chemistry, University of Warwick, Gibbet Hill Road, Coventry CV4 7AL, United
Kingdom
| | - Michael Shipman
- Department of Chemistry, University of Warwick, Gibbet Hill Road, Coventry CV4 7AL, United
Kingdom
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16
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Dayan O, Özdemir N, Şerbetci Z, Dinçer M, Çetinkaya B, Büyükgüngör O. Synthesis and catalytic activity of ruthenium(II) complexes containing pyridine-based tridentate triamines () and pyridine carboxylate ligands (). Inorganica Chim Acta 2012. [DOI: 10.1016/j.ica.2012.02.034] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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17
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Junge K, Möller K, Wendt B, Das S, Gördes D, Thurow K, Beller M. Enantioselective Zinc-Catalyzed Hydrosilylation of Ketones using Pybox or Pybim Ligands. Chem Asian J 2011; 7:314-20. [DOI: 10.1002/asia.201100561] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2011] [Indexed: 11/06/2022]
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18
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Ohara M, Nakamura S, Shibata N. Direct Enantioselective Three-Component Kabachnik-Fields Reaction Catalyzed by Chiral Bis(imidazoline)-Zinc(II) Catalysts. Adv Synth Catal 2011. [DOI: 10.1002/adsc.201100482] [Citation(s) in RCA: 95] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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19
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Möller K, Wienhöfer G, Westerhaus F, Junge K, Beller M. Oxidation of 1,2,4-trimethylbenzene (TMB), 2,3,6-trimethylphenol (TMP) and 2-methylnaphthalene to 2,3,5-trimethylbenzoquinone (TMBQ) and menadione (vitamin K3). Catal Today 2011. [DOI: 10.1016/j.cattod.2011.02.069] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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20
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Michel BW, Steffens LD, Sigman MS. On the mechanism of the palladium-catalyzed tert-butylhydroperoxide-mediated Wacker-type oxidation of alkenes using quinoline-2-oxazoline ligands. J Am Chem Soc 2011; 133:8317-25. [PMID: 21553838 DOI: 10.1021/ja2017043] [Citation(s) in RCA: 86] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The mechanism of the tert-butylhydroperoxide-mediated, Pd(Quinox)-catalyzed Wacker-type oxidation was investigated to evaluate the hypothesis that a selective catalyst-controlled oxidation could be achieved by rendering the palladium coordinatively saturated using a bidentate amine ligand. The unique role of the Quinox ligand framework was probed via systematic ligand modifications. The modified ligands were evaluated through quantitative Hammett analysis, which supports a "push-pull" relationship between the electronically asymmetric quinoline and oxazoline ligand modules.
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Affiliation(s)
- Brian W Michel
- Department of Chemistry, University of Utah, 315 South 1400 East, Salt Lake City, Utah 84112, USA
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21
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Gärtner F, Cozzula D, Losse S, Boddien A, Anilkumar G, Junge H, Schulz T, Marquet N, Spannenberg A, Gladiali S, Beller M. Synthesis, Characterisation and Application of Iridium(III) Photosensitisers for Catalytic Water Reduction. Chemistry 2011; 17:6998-7006. [DOI: 10.1002/chem.201100235] [Citation(s) in RCA: 114] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2011] [Indexed: 11/07/2022]
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22
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De Faveri G, Ilyashenko G, Watkinson M. Recent advances in catalytic asymmetric epoxidation using the environmentally benign oxidant hydrogen peroxide and its derivatives. Chem Soc Rev 2010; 40:1722-60. [PMID: 21079863 DOI: 10.1039/c0cs00077a] [Citation(s) in RCA: 270] [Impact Index Per Article: 19.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
There has been a recent drive to develop asymmetric catalytic methods to produce epoxides using environmentally benign oxidants, especially hydrogen peroxide. This critical review discusses the advances that have been made using both metal-based and organocatalytic homogeneous catalysts (142 references).
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Affiliation(s)
- Giorgio De Faveri
- The Joseph Priestly Building, School of Biological and Chemical Sciences, Queen Mary University of London, Mile End Road, London E1 4NS, UK
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23
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Nakamura S, Ohara M, Nakamura Y, Shibata N, Toru T. Copper-Catalyzed Enantioselective Three-Component Synthesis of Optically Active Propargylamines from Aldehydes, Amines, and Aliphatic Alkynes. Chemistry 2010; 16:2360-2. [DOI: 10.1002/chem.200903550] [Citation(s) in RCA: 109] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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24
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Martha C, Heemskerk A, Hoogendoorn JC, Elders N, Niessen W, Orru R, Irth H. High-Throughput Reaction Optimisation and Activity Screening of Ferrocene-Based Lewis Acid-Catalyst Complexes by Using Continuous-Flow Reaction Detection Mass Spectrometry. Chemistry 2009; 15:7368-75. [DOI: 10.1002/chem.200900317] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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25
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Bureš F, Kulhánek J, Růžička A. Probing electronic and regioisomeric control in an asymmetric Henry reaction catalyzed by camphor-imidazoline ligands. Tetrahedron Lett 2009. [DOI: 10.1016/j.tetlet.2009.04.010] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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26
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Liu H, Du DM. Recent Advances in the Synthesis of 2-Imidazolines and Their Applications in Homogeneous Catalysis. Adv Synth Catal 2009. [DOI: 10.1002/adsc.200800797] [Citation(s) in RCA: 121] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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27
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Mal R, Mittal N, Emge TJ, Seidel D. Facile synthesis of a chiral urea bridged bisoxazoline ligand and structural characterization of its bis-copper(ii)-chloride complex. Chem Commun (Camb) 2009:7309-11. [DOI: 10.1039/b918735a] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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28
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Bitterlich B, Schröder K, Tse MK, Beller M. An Improved Iron-Catalyzed Epoxidation of Aromatic and Aliphatic Olefins with Hydrogen Peroxide as Oxidant. European J Org Chem 2008. [DOI: 10.1002/ejoc.200800712] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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29
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Chatterjee D. Asymmetric epoxidation of unsaturated hydrocarbons catalyzed by ruthenium complexes. Coord Chem Rev 2008. [DOI: 10.1016/j.ccr.2007.05.007] [Citation(s) in RCA: 77] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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30
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31
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Elders N, Schmitz RF, de Kanter FJJ, Ruijter E, Groen MB, Orru RVA. A Resource-Efficient and Highly Flexible Procedure for a Three-Component Synthesis of 2-Imidazolines. J Org Chem 2007; 72:6135-42. [PMID: 17628108 DOI: 10.1021/jo070840x] [Citation(s) in RCA: 79] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A multicomponent reaction between alpha-acidic isonitriles, primary amines, and carbonyl compounds was studied using 14 different solvents. Depending on the isocyanide that was used, optimal yields for the three-component synthesis of 2H-2-imidazolines were observed in different solvents. The solvents could be used as purchased, and in situ preformation of the imine was not required. By selecting the appropriate solvent, it was possible to considerably expand the range of compatible isocyanides toward less alpha-acidic isocyanides. Further process simplification was achieved by performing the reaction at higher concentrations and avoiding purification by column chromatography, resulting in a fast, easy to perform, and resource-efficient protocol for this three-component reaction.
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Affiliation(s)
- Niels Elders
- Department of Organic and Inorganic Chemistry, Faculty of Sciences, Vrije Universiteit Amsterdam, De Boelelaan 1083, 1081 HV Amsterdam, The Netherlands
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32
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Shi F, Tse MK, Beller M. Selective oxidation of naphthalene derivatives with ruthenium catalysts using hydrogen peroxide as terminal oxidant. ACTA ACUST UNITED AC 2007. [DOI: 10.1016/j.molcata.2006.12.047] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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33
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Enthaler S, Hagemann B, Bhor S, Anilkumar G, Tse MK, Bitterlich B, Junge K, Erre G, Beller M. New Ruthenium Catalysts for Asymmetric Transfer Hydrogenation of Prochiral Ketones. Adv Synth Catal 2007. [DOI: 10.1002/adsc.200600475] [Citation(s) in RCA: 79] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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34
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Bitterlich B, Anilkumar G, Gelalcha FG, Spilker B, Grotevendt A, Jackstell R, Tse MK, Beller M. Development of a General and Efficient Iron-Catalyzed Epoxidation with Hydrogen Peroxide as Oxidant. Chem Asian J 2007; 2:521-9. [PMID: 17441190 DOI: 10.1002/asia.200600407] [Citation(s) in RCA: 72] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
The development of inexpensive and practical iron catalysts for the environmentally benign epoxidation of olefins with hydrogen peroxide as terminal oxidant is described. By systematic variation of ligands, metal sources, and reaction conditions, it was discovered that FeCl3 x 6 H2O in combination with pyridine-2,6-dicarboxylic acid and different amines shows high reactivity and excellent selectivity towards the epoxidation of aromatic olefins and moderate reactivity towards that of aliphatic olefins.
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Affiliation(s)
- Bianca Bitterlich
- Leibniz-Institut für Katalyse, Albert-Einstein-Str. 29a, D-18059 Rostock, Germany
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Shi F, Tse MK, Beller M. A Novel Environmentally Benign Method for the Selective Oxidation of Alcohols to Aldehydes and Ketones. Chem Asian J 2007; 2:411-5. [PMID: 17441178 DOI: 10.1002/asia.200600383] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
In the presence of [Ru(terpyridine)(2,6-pyridinedicarboxylate)], aliphatic and benzylic alcohols are oxidized to the corresponding aldehydes or ketones with high selectivity by using hydrogen peroxide as the oxidant. There is no need for the addition of co-catalysts or organic solvents. By applying an optimized reaction protocol, high catalyst productivity (turnover number>10,000) and activity (turnover frequency up to 14,800 h(-1)) has been achieved.
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Affiliation(s)
- Feng Shi
- Leibniz-Institut für Katalyse e.V. an der Universität Rostock, Albert-Einstein-Str. 29a, 18059 Rostock, Germany
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36
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Shi F, Tse MK, Beller M. A Novel and Convenient Process for the Selective Oxidation of Naphthalenes with Hydrogen Peroxide. Adv Synth Catal 2007. [DOI: 10.1002/adsc.200600395] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Anilkumar G, Bitterlich B, Gelalcha FG, Tse MK, Beller M. An efficient biomimetic Fe-catalyzed epoxidation of olefins using hydrogen peroxide. Chem Commun (Camb) 2007:289-91. [PMID: 17299642 DOI: 10.1039/b612048b] [Citation(s) in RCA: 140] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new, environmentally benign and practical epoxidation method was developed using inexpensive and efficient Fe catalysts. FeCl3.6H2O in combination with commercially available pyridine-2,6-dicarboxylic acid and amines showed excellent reactivity and selectivity towards aromatic olefins and moderate reactivity towards 1,3-cyclooctadiene utilizing H2O2 as the terminal oxidant.
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Affiliation(s)
- Gopinathan Anilkumar
- Leibniz-Institut für Katalyse, Albert-Einstein Strasse 29a, Rostock, D-18059, Germany
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38
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Chatterjee D, Basak S, Riahi A, Muzart J. Highly efficient asymmetric epoxidation of alkenes with a novel chiral complex of ruthenium(III) containing a sugar based ligand and triphenylphosphines. ACTA ACUST UNITED AC 2006. [DOI: 10.1016/j.molcata.2006.04.027] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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39
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Tse MK, Bhor S, Klawonn M, Anilkumar G, Jiao H, Döbler C, Spannenberg A, Mägerlein W, Hugl H, Beller M. Ruthenium-Catalyzed Asymmetric Epoxidation of Olefins Using H2O2, Part I: Synthesis of New ChiralN,N,N-Tridentate Pybox and Pyboxazine Ligands and Their Ruthenium Complexes. Chemistry 2006; 12:1855-74. [PMID: 16440390 DOI: 10.1002/chem.200501261] [Citation(s) in RCA: 79] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
The synthesis of chiral tridentate N,N,N-pyridine-2,6-bisoxazolines 3 (pybox ligands) and N,N,N-pyridine-2,6-bisoxazines 4 (pyboxazine ligands) is described in detail. These novel ligands constitute a useful toolbox for the application in asymmetric catalysis. Compounds 3 and 4 are conveniently prepared by cyclization of enantiomerically pure alpha- or beta-amino alcohols with dimethyl pyridine-2,6-dicarboximidate. The corresponding ruthenium complexes are efficient asymmetric epoxidation catalysts and have been prepared in good yield and fully characterized by spectroscopic means. Four of these ruthenium complexes have been characterized by X-ray crystallography. For the first time the molecular structure of a pyboxazine complex [2,6-bis-[(4S)-4-phenyl-5,6-dihydro-4H-[1,3]oxazinyl]pyridine](pyridine-2,6-dicarboxylate)ruthenium (S)-2 aa, is presented.
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Affiliation(s)
- Man Kin Tse
- Leibniz-Institut für Organische Katalyse an der Universität Rostock e.V. Albert-Einstein-Strasse 29a, 18059 Rostock (Germany)
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Tse MK, Bhor S, Klawonn M, Anilkumar G, Jiao H, Spannenberg A, Döbler C, Mägerlein W, Hugl H, Beller M. Ruthenium-Catalyzed Asymmetric Epoxidation of Olefins Using H2O2, Part II: Catalytic Activities and Mechanism. Chemistry 2006; 12:1875-88. [PMID: 16432912 DOI: 10.1002/chem.200501262] [Citation(s) in RCA: 84] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
Asymmetric epoxidation of olefins with 30 % H2O2 in the presence of [Ru(pybox)(pydic)] 1 and [Ru(pyboxazine)(pydic)] 2 has been studied in detail (pybox = pyridine-2,6-bisoxazoline, pyboxazine = pyridine-2,6-bisoxazine, pydic = 2,6-pyridinedicarboxylate). 35 Ruthenium complexes with sterically and electronically different substituents have been tested in environmentally benign epoxidation reactions. Mono-, 1,1-di-, cis- and trans-1,2-di-, tri-, and tetra-substituted aromatic olefins with versatile functional groups can be epoxidized with this type of catalyst in good to excellent yields (up to 100 %) with moderate to good enantioselectivies (up to 84 % ee). Additive and solvent effects as well as the relative rate of reaction with different catalysts have been established. It is shown that the presence of weak organic acids or an electron-withdrawing group on the catalyst increases the reactivity. New insights on the reaction intermediates and reaction pathway of the ruthenium-catalyzed epoxidation are proposed on the basis of density functional theory calculation and experiments.
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Affiliation(s)
- Man Kin Tse
- Leibniz-Institut für Organische Katalyse an der Universität Rostock e.V. Albert-Einstein-Strasse 29a, 18059 Rostock (Germany)
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