1
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Zhang R, Xu J, Liu S, Si S, Chen J, Wang L, Chen WW, Zhao B. Direct Enantioselective α-C-H Conjugate Addition of Propargylamines to α,β-Unsaturated Ketones via Carbonyl Catalysis. J Am Chem Soc 2024; 146:25927-25933. [PMID: 39259771 DOI: 10.1021/jacs.4c09840] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/13/2024]
Abstract
Direct asymmetric α-C-H conjugate addition of propargylamines to α,β-unsaturated ketones remains a great challenge due to the low α-amino C-H acidity of propargylamines and the nucleophilic interference of the NH2 group. Utilizing a new type of pyridoxals featuring a benzene-pyridine biaryl skeleton and a bulky amide side chain as carbonyl catalyst, we have accomplished direct asymmetric α-C-H conjugate addition of NH2-unprotected propargylamines to α,β-unsaturated ketones. The adducts undergo subsequent in situ intramolecular cyclization, delivering a wide range of chiral polysubstituted 1-pyrrolines in high yields (up to 92%) with excellent diastereo- and enatioelectivities (up to >20:1 dr and 99% ee). This work has demonstrated a straightforward approach to access pharmaceutically important chiral 1-pyrrolines, and it has also provided an impressive instance of direct asymmetric functionalization of inert C-H bonds enabled by biomimetic organocatalysts.
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Affiliation(s)
- Ruixin Zhang
- The Education Ministry Key Lab of Resource Chemistry, Shanghai Frontiers Science Center of Biomimetic Catalysis, and College of Chemistry and Materials Science, Shanghai Normal University, Shanghai 200234, China
| | - Jiwei Xu
- The Education Ministry Key Lab of Resource Chemistry, Shanghai Frontiers Science Center of Biomimetic Catalysis, and College of Chemistry and Materials Science, Shanghai Normal University, Shanghai 200234, China
| | - Siqi Liu
- The Education Ministry Key Lab of Resource Chemistry, Shanghai Frontiers Science Center of Biomimetic Catalysis, and College of Chemistry and Materials Science, Shanghai Normal University, Shanghai 200234, China
| | - Shibo Si
- The Education Ministry Key Lab of Resource Chemistry, Shanghai Frontiers Science Center of Biomimetic Catalysis, and College of Chemistry and Materials Science, Shanghai Normal University, Shanghai 200234, China
| | - Jiayao Chen
- The Education Ministry Key Lab of Resource Chemistry, Shanghai Frontiers Science Center of Biomimetic Catalysis, and College of Chemistry and Materials Science, Shanghai Normal University, Shanghai 200234, China
| | - Lingxiao Wang
- The Education Ministry Key Lab of Resource Chemistry, Shanghai Frontiers Science Center of Biomimetic Catalysis, and College of Chemistry and Materials Science, Shanghai Normal University, Shanghai 200234, China
| | - Wen-Wen Chen
- The Education Ministry Key Lab of Resource Chemistry, Shanghai Frontiers Science Center of Biomimetic Catalysis, and College of Chemistry and Materials Science, Shanghai Normal University, Shanghai 200234, China
| | - Baoguo Zhao
- The Education Ministry Key Lab of Resource Chemistry, Shanghai Frontiers Science Center of Biomimetic Catalysis, and College of Chemistry and Materials Science, Shanghai Normal University, Shanghai 200234, China
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2
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Lapa DP, Araújo LHS, Melo SR, Costa PRR, Caleffi GS. Ru(II)-Catalyzed Asymmetric Transfer Hydrogenation of α-Alkyl-β-Ketoaldehydes via Dynamic Kinetic Resolution. Molecules 2024; 29:3420. [PMID: 39064997 PMCID: PMC11279712 DOI: 10.3390/molecules29143420] [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: 06/22/2024] [Revised: 07/14/2024] [Accepted: 07/17/2024] [Indexed: 07/28/2024] Open
Abstract
The (R,R)-Teth-TsDPEN-Ru(II) complex promoted the one-pot double C=O reduction of α-alkyl-β-ketoaldehydes through asymmetric transfer hydrogenation/dynamic kinetic resolution (ATH-DKR) under mild conditions. In this process, ten anti-2-benzyl-1-phenylpropane-1,3-diols (85:15 to 92:8 dr) were obtained in good yields (41-87%) and excellent enantioselectivities (>99% ee for all compounds). Notably, the preferential reduction of the aldehyde moiety led to the in situ formation of 2-benzyl-3-hydroxy-1-phenylpropan-1-one intermediates. These intermediates played a crucial role in enhancing both reactivity and stereoselectivity through hydrogen bonding.
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Affiliation(s)
| | | | | | - Paulo R. R. Costa
- Laboratório de Química Bioorgânica, Instituto de Pesquisas de Produtos Naturais Walter Mors, Universidade Federal do Rio de Janeiro, Rio de Janeiro 21941-902, Brazil
| | - Guilherme S. Caleffi
- Laboratório de Química Bioorgânica, Instituto de Pesquisas de Produtos Naturais Walter Mors, Universidade Federal do Rio de Janeiro, Rio de Janeiro 21941-902, Brazil
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3
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Zhu S, Tian X, Liu J, Dai B, Li SW. Bipyridine- N, N'-dioxides Catalysts: Design, Synthesis, and Application in Asymmetric Synthesis of 1 H-Pyrazolo[3,4- b]pyridine Analogues. Org Lett 2024; 26:3487-3492. [PMID: 38634857 DOI: 10.1021/acs.orglett.4c00515] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/19/2024]
Abstract
A novel type of highly efficient chiral C2-symmetric bipyridine-N,N'-dioxides ligand application in catalyzing Michael addition/Cyclization of 5-aminopyrazoles with α,β-unsaturated 2-acyl imidazoles has been developed, affording the corresponding adducts in 85-97% yield with up to 99% enantioselectivity under mild conditions with a lower catalyst loading and broad scope. Remarkably, this protocol exhibits advantages in terms of reactivity and enantioselectivity, giving the fact that as low as 2.2 mol % of L1 and 2.0 mol % of Ni(OTf)2 can promote the title reaction on gram scale to afford the desired product with excellent enantioselectivity.
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Affiliation(s)
- Shijie Zhu
- School of Chemistry and Chemical Engineering/State Key Laboratory Incubation Base for Green Processing of Chemical Engineering, Shihezi University, Shihezi, Xinjiang 832003, China
| | - Xue Tian
- School of Chemistry and Chemical Engineering/State Key Laboratory Incubation Base for Green Processing of Chemical Engineering, Shihezi University, Shihezi, Xinjiang 832003, China
| | - Jichang Liu
- School of Chemistry and Chemical Engineering/State Key Laboratory Incubation Base for Green Processing of Chemical Engineering, Shihezi University, Shihezi, Xinjiang 832003, China
| | - Bin Dai
- School of Chemistry and Chemical Engineering/State Key Laboratory Incubation Base for Green Processing of Chemical Engineering, Shihezi University, Shihezi, Xinjiang 832003, China
| | - Shi-Wu Li
- School of Chemistry and Chemical Engineering/State Key Laboratory Incubation Base for Green Processing of Chemical Engineering, Shihezi University, Shihezi, Xinjiang 832003, China
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4
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Araki H, Furuya S, Kanemoto K, Fukuzawa SI. Chiral Silver Complex-Catalyzed Asymmetric Conjugate Addition of 1-Pyrroline-5-Carbonitrile to α-Enones. J Org Chem 2023; 88:924-932. [PMID: 36626719 DOI: 10.1021/acs.joc.2c02315] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
The conjugated addition reaction of 1-pyrroline-5-carbonitrile to α-enones was effectively catalyzed by AgF/ThioClickFerrophos (TCF) in diethyl ether in the presence of 1,8-diazabicyclo[5.4.0]undec-7-ene (DBU), and nearly single diastereomers of adducts with good enantiomeric excesses (up to 97% ee) were obtained in high yields. The reduction of the nitrile group with H2/Raney Ni in ethanol successfully transformed the conjugate adduct to the corresponding spirocyclic piperidine (60% yield) as a single stereoisomer.
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Affiliation(s)
- Haruna Araki
- Department of Applied Chemistry, Institute of Science and Engineering, Chuo University, 1-13-27 Kasuga, Bunkyo-ku, Tokyo 112-8551, Japan
| | - Shohei Furuya
- Department of Applied Chemistry, Institute of Science and Engineering, Chuo University, 1-13-27 Kasuga, Bunkyo-ku, Tokyo 112-8551, Japan
| | - Kazuya Kanemoto
- Department of Applied Chemistry, Institute of Science and Engineering, Chuo University, 1-13-27 Kasuga, Bunkyo-ku, Tokyo 112-8551, Japan
| | - Shin-Ichi Fukuzawa
- Department of Applied Chemistry, Institute of Science and Engineering, Chuo University, 1-13-27 Kasuga, Bunkyo-ku, Tokyo 112-8551, Japan
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5
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Guo YC, Chiu KW, Chein RJ. (Thiolan-2-yl)diphenylmethanol Benzyl Ether-Catalyzed Asymmetric Cyclopropanation of Chalcones. J Org Chem 2023; 88:559-572. [PMID: 36541794 DOI: 10.1021/acs.joc.2c02573] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
We devised a new method for asymmetric cyclopropanation by employing (S)-(thiolan-2-yl)diphenylmethanol benzyl ether as an organocatalyst. Under optimal conditions, an in situ generated sulfur ylide reacts with (E)-chalcones via a Johnson-Corey-Chaykovsky reaction to afford a variety of cyclopropanes in excellent yields and stereoselectivities. This strategy employs low-environmental-risk reaction conditions and reusable catalysts. Hence, it is a green and efficient method for constructing cyclopropane scaffolds.
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Affiliation(s)
- Yu-Chen Guo
- Department of Chemistry and Biochemistry, National Chung Cheng University, Chiayi 62102, Taiwan
| | - Kuei-Wei Chiu
- Institute of Chemistry, Academia Sinica, Nankang, Taipei 11529, Taiwan
| | - Rong-Jie Chein
- Institute of Chemistry, Academia Sinica, Nankang, Taipei 11529, Taiwan
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6
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Bai YJ, Cheng ML, Zheng XH, Zhang SY, Wang PA. Chiral Cyclopropenimine-catalyzed Asymmetric Michael Addition of Bulky Glycine Imine to α,β-Unsaturated Isoxazoles. Chem Asian J 2022; 17:e202200131. [PMID: 35415949 DOI: 10.1002/asia.202200131] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2022] [Revised: 03/26/2022] [Indexed: 11/11/2022]
Abstract
A highly efficient asymmetric Michael addition of bulky glycine imine to α,β-unsaturated isoxazoles has been achieved by using 5 mol% of chiral cyclopropenimine as a chiral organo-superbase catalyst under mild conditions. Michael adducts were obtained in excellent yields (up to 97%) and stereoselectivities (up to>99 : 1 dr and 98% ee). A significant solvent effect was found in these chiral organosuperbase catalyzed asymmetric Michael reactions. Gram-scale preparation of Michael adducts and their transformations are realized to provide corresponding products without loss of stereoselectivities. The configurations of Michael adduct was determined by single-crystal X-ray diffraction analysis.
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Affiliation(s)
- Yu-Jun Bai
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, The College of Life Sciences, Northwest University, Xi'an, 710069, P. R. China) E-mails.,Department of Medicinal Chemistry and Pharmaceutical Analysis, School of Pharmacy, Fourth Military Medical University, Xi'an, 710032, P. R. China
| | - Mei-Ling Cheng
- Department of Medicinal Chemistry and Pharmaceutical Analysis, School of Pharmacy, Fourth Military Medical University, Xi'an, 710032, P. R. China
| | - Xiao-Hui Zheng
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, The College of Life Sciences, Northwest University, Xi'an, 710069, P. R. China) E-mails
| | - Sheng-Yong Zhang
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, The College of Life Sciences, Northwest University, Xi'an, 710069, P. R. China) E-mails.,Department of Medicinal Chemistry and Pharmaceutical Analysis, School of Pharmacy, Fourth Military Medical University, Xi'an, 710032, P. R. China
| | - Ping-An Wang
- Department of Medicinal Chemistry and Pharmaceutical Analysis, School of Pharmacy, Fourth Military Medical University, Xi'an, 710032, P. R. China
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7
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Design, synthesis, and biological evaluation of novel Bcr-Abl T315I inhibitors incorporating amino acids as flexible linker. Bioorg Med Chem 2021; 48:116398. [PMID: 34547714 DOI: 10.1016/j.bmc.2021.116398] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2021] [Revised: 08/31/2021] [Accepted: 09/02/2021] [Indexed: 01/25/2023]
Abstract
Despite the success of imatinib in CML therapy through Bcr-Abl inhibition, acquired drug resistance occurs over time in patients. In particular, the resistance caused by T315I mutation remains a challenge in clinic. Herein, we embarked on a structural optimization campaign aiming at discovery of novel Bcr-Abl inhibitors toward T315I mutant based on previously reported dibenzoylpiperazin derivatives. We proposed that incorporation of flexible linker could achieve potent inhibition of Bcr-AblT315I by avoiding steric clash with bulky sidechain of Ile315. A library of 28 compounds with amino acids as linker has been developed and evaluated. Among them, compound AA2 displayed the most potent activity against Bcr-AblWT and Bcr-AblT315I, as well as toward Bcr-Abl driven K562 and K562R cells. Further investigations indicated that AA2 could induce apoptosis of K562 cells and down regulate phosphorylation of Bcr-Abl. In summary, the compounds with amino acid as novel flexible linker exhibited certain antitumor activities, providing valuable hints for the discovery of novel Bcr-Abl inhibitors to overcome T315I mutant resistance, and AA2 could be considered as a candidate for further optimization.
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8
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Rhodium-Catalyzed Oxidative Annulation of 2- or 7-Arylindoles with Alkenes/Alkynes Using Molecular Oxygen as the Sole Oxidant Enabled by Quaternary Ammonium Salt. Molecules 2021; 26:molecules26175329. [PMID: 34500762 PMCID: PMC8433977 DOI: 10.3390/molecules26175329] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2021] [Revised: 08/29/2021] [Accepted: 08/29/2021] [Indexed: 11/16/2022] Open
Abstract
Developing an efficient catalytic system using molecular oxygen as the oxidant for rhodium-catalyzed cross-dehydrogenative coupling remains highly desirable. Herein, rhodium-catalyzed oxidative annulation of 2- or 7-phenyl-1H-indoles with alkenes or alkynes to assemble valuable 6H-isoindolo[2,1-a]indoles, pyrrolo[3,2,1-de]phenanthridines, or indolo[2,1-a]isoquinolines using the atmospheric pressure of air as the sole oxidant enabled by quaternary ammonium salt has been accomplished. Mechanistic studies provided evidence for the fast intramolecular aza-Michael reaction and aerobic reoxidation of Rh(I)/Rh(III), facilitated by the addition of quaternary ammonium salt.
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9
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Guo W, Wang M, Han Z, Huang H, Sun J. Organocatalytic asymmetric synthesis of α-amino esters from sulfoxonium ylides. Chem Sci 2021; 12:11191-11196. [PMID: 34522316 PMCID: PMC8386753 DOI: 10.1039/d1sc02439f] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2021] [Accepted: 06/28/2021] [Indexed: 12/14/2022] Open
Abstract
Described here is the first organocatalytic asymmetric N–H insertion reaction of α-carbonyl sulfoxonium ylides. Without a metal catalyst, this reaction represents an attractive complement to the well-established carbene insertion reactions. As a stable surrogate of diazocarbonyl compounds, sulfoxonium ylides reacted with a range of aryl amines to provide efficient access to α-aryl glycines with excellent enantiocontrol in the presence of a suitable chiral phosphoric acid catalyst. The high stability and weak basicity of sulfoxonium ylides not only enable this protocol to be user-friendly and practically useful, but also preclude catalyst decomposition, which is crucial to the excellent amenability to electron-poor amine nucleophiles. Detailed mechanistic studies indicated that the initial protonation is reversible and the C–N bond formation is rate-determining. An organocatalytic asymmetric N–H insertion reaction of α-carbonyl sulfoxonium ylides has been developed to provide efficient access to α-amino esters without involving a metal carbenoid intermediate.![]()
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Affiliation(s)
- Wengang Guo
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Petrochemical Engineering, Changzhou University Changzhou China
| | - Min Wang
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Petrochemical Engineering, Changzhou University Changzhou China
| | - Zhengyu Han
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Petrochemical Engineering, Changzhou University Changzhou China
| | - Hai Huang
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Petrochemical Engineering, Changzhou University Changzhou China
| | - Jianwei Sun
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Petrochemical Engineering, Changzhou University Changzhou China .,Department of Chemistry, The Hong Kong University of Science and Technology Clear Water Bay Kowloon Hong Kong SAR China
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10
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Zhang ZQ, Ren QX, Tian WF, Sun WH, Cao XP, Shi ZF, Chow HF, Kuck D. Synthesis of Enantiopure Hydrocarbon Cages Based on an Optically Resolved C3-Symmetric Triaminotribenzotriquinacene. Org Lett 2021; 23:1478-1483. [PMID: 33525871 DOI: 10.1021/acs.orglett.1c00176] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The synthesis of the enantiomerically pure, D3-symmetric covalent hydrocarbon cages (+)-(M,M)-4 and (-)-(P,P)-4 bearing two C3-symmetrically functionalized tribenzobenzotriquinacene (TBTQ) vertices is reported. The enantiomerically pure TBTQ building blocks (+)-(M)-5 and (-)-(P)-5 were prepared via the diastereomeric TBTQ triamides obtained by use of both Boc-d- and Boc-l-phenylglycine as chiral auxiliaries.
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Affiliation(s)
- Zhi-Qiang Zhang
- State Key Laboratory of Applied Organic Chemistry and College of Chemistry & Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
| | - Qing-Xia Ren
- State Key Laboratory of Applied Organic Chemistry and College of Chemistry & Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
| | - Wan-Fa Tian
- State Key Laboratory of Applied Organic Chemistry and College of Chemistry & Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
| | - Wen-Hua Sun
- Beijing National Laboratory for Molecular Sciences, Key Laboratory for Engineering Plastics, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100080, P. R. China
| | - Xiao-Ping Cao
- State Key Laboratory of Applied Organic Chemistry and College of Chemistry & Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
| | - Zi-Fa Shi
- State Key Laboratory of Applied Organic Chemistry and College of Chemistry & Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
| | - Hak-Fun Chow
- Department of Chemistry and State Key Laboratory of Synthetic Chemistry, The Chinese University of Hong Kong, Shatin, NT, Hong Kong
| | - Dietmar Kuck
- Department of Chemistry and Center for Molecular Materials (CM2), Bielefeld University, 33615 Bielefeld, Germany
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11
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Organophosphine bearing multiple hydrogen-bond donors for asymmetric Michael addition reaction of 1-oxoindane-2-carboxylic acid ester via dual-reagent catalysis. CHINESE CHEM LETT 2021. [DOI: 10.1016/j.cclet.2020.07.026] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
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12
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Nie X, Yan Z, Ivlev S, Meggers E. Ruthenium Pybox-Catalyzed Enantioselective Intramolecular C-H Amination of Sulfamoyl Azides en Route to Chiral Vicinal Diamines. J Org Chem 2021; 86:750-761. [PMID: 33236905 DOI: 10.1021/acs.joc.0c02279] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Enantioselective C(sp3)-H aminations allow an efficient access to nonracemic chiral amines. This work reports the catalytic asymmetric synthesis of chiral 1,2,5-thiadiazolidine-1,1-dioxides by an enantioselective ring-closing 1,5-C-H amination of sulfamoyl azides. The reaction is catalyzed by a recently introduced simple chiral ruthenium bis(oxazoline) (pybox) complex ( Angew. Chem. Int. Ed. 2020, 59, 12395) and provides cyclic 5-membered sulfamide products in up to 98% yield and up to 98% ee if the C-H bond is in a benzylic position. Mechanistic experiments support a stepwise mechanism in which an intermediate ruthenium nitrenoid species initiates a 1,5-hydrogen atom transfer followed by an immediate radical rebound. The cyclic sulfamide products are suitable intermediates for the synthesis of chiral vicinal diamines as has been verified for a representative example.
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Affiliation(s)
- Xin Nie
- Fachbereich Chemie, Philipps-Universität Marburg, Hans-Meerwein-Strasse 4, 35043 Marburg, Germany
| | - Zihan Yan
- Fachbereich Chemie, Philipps-Universität Marburg, Hans-Meerwein-Strasse 4, 35043 Marburg, Germany
| | - Sergei Ivlev
- Fachbereich Chemie, Philipps-Universität Marburg, Hans-Meerwein-Strasse 4, 35043 Marburg, Germany
| | - Eric Meggers
- Fachbereich Chemie, Philipps-Universität Marburg, Hans-Meerwein-Strasse 4, 35043 Marburg, Germany
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13
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Affiliation(s)
| | - Jetze J. Tepe
- Department of Chemistry Michigan State University East Lansing Michigan 48823
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14
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15
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O'Donnell MJ. Benzophenone Schiff bases of glycine derivatives: Versatile starting materials for the synthesis of amino acids and their derivatives. Tetrahedron 2019. [DOI: 10.1016/j.tet.2019.03.029] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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16
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Zhang Y, Su J, Lin T, Lin Z, Zhou Z, Li Y. Iodine/K 2CO 3-catalyzed synthesis of multisubstituted pyrrolidine-2-carboxylates via a one-pot reaction between an araldehyde, an amino acid ester, and a chalcone. JOURNAL OF CHEMICAL RESEARCH 2019. [DOI: 10.1177/1747519819832108] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
A series of more than 20 multisubstituted pyrrolidine-2-carboxylates were synthesized via a one-pot cycloaddition of an araldehyde, an amino acid ester, and a chalcone catalyzed by I2/K2CO3 in tetrahydrofuran at 80 °C. The advantages of this method are readily available starting materials, mild conditions, and simple operation, and it is metal free and yields are good to excellent.
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Affiliation(s)
- Yongjian Zhang
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, P.R. China
| | - Junyi Su
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, P.R. China
| | - Tengfei Lin
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, P.R. China
| | - Zhangqi Lin
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, P.R. China
| | - Zichun Zhou
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, P.R. China
| | - Yujin Li
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, P.R. China
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17
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Wen W, Chen L, Luo MJ, Zhang Y, Chen YC, Ouyang Q, Guo QX. Chiral Aldehyde Catalysis for the Catalytic Asymmetric Activation of Glycine Esters. J Am Chem Soc 2018; 140:9774-9780. [PMID: 29995401 DOI: 10.1021/jacs.8b06676] [Citation(s) in RCA: 80] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Chiral aldehyde catalysis is uniquely suitable for the direct asymmetric α-functionalization of N-unprotected amino acids, because aldehydes can reversibly form imines. However, there have been few successful reports of these transformations. In fact, only chiral aldehyde catalyzed aldol reactions of amino acids and alkylation of 2-amino malonates have been reported with good chiral induction. Here, we report a novel type of chiral aldehyde catalyst based on face control of the enolate intermediates. The resulting chiral aldehyde is the first efficient nonpyridoxal-dependent catalyst that can promote the direct asymmetric α-functionalization of N-unprotected glycine esters. Possible transition states and the proton transfer process were investigated by density functional theory calculations.
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Affiliation(s)
- Wei Wen
- Key Laboratory of Applied Chemistry of Chongqing Municipality, School of Chemistry and Chemical Engineering , Southwest University , Chongqing 400715 , China
| | - Lei Chen
- Key Laboratory of Applied Chemistry of Chongqing Municipality, School of Chemistry and Chemical Engineering , Southwest University , Chongqing 400715 , China
| | - Ming-Jing Luo
- Key Laboratory of Applied Chemistry of Chongqing Municipality, School of Chemistry and Chemical Engineering , Southwest University , Chongqing 400715 , China
| | - Yan Zhang
- Key Laboratory of Applied Chemistry of Chongqing Municipality, School of Chemistry and Chemical Engineering , Southwest University , Chongqing 400715 , China
| | - Ying-Chun Chen
- College of Pharmacy , Third Military Medical University , Chongqing 400038 , China
| | - Qin Ouyang
- College of Pharmacy , Third Military Medical University , Chongqing 400038 , China
| | - Qi-Xiang Guo
- Key Laboratory of Applied Chemistry of Chongqing Municipality, School of Chemistry and Chemical Engineering , Southwest University , Chongqing 400715 , China
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18
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Borah P, Yamashita Y, Kobayashi S. Catalytic Stereoselective 1,4-Addition Reactions Using CsF on Alumina as a Solid Base: Continuous-Flow Synthesis of Glutamic Acid Derivatives. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201701789] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Parijat Borah
- Department of Chemistry; School of Science; The University of Tokyo; Hongo, Bunkyo-ku Tokyo 113-0033 Japan
| | - Yasuhiro Yamashita
- Department of Chemistry; School of Science; The University of Tokyo; Hongo, Bunkyo-ku Tokyo 113-0033 Japan
| | - Shū Kobayashi
- Department of Chemistry; School of Science; The University of Tokyo; Hongo, Bunkyo-ku Tokyo 113-0033 Japan
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19
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Borah P, Yamashita Y, Kobayashi S. Catalytic Stereoselective 1,4-Addition Reactions Using CsF on Alumina as a Solid Base: Continuous-Flow Synthesis of Glutamic Acid Derivatives. Angew Chem Int Ed Engl 2017; 56:10330-10334. [DOI: 10.1002/anie.201701789] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2017] [Revised: 04/29/2017] [Indexed: 12/20/2022]
Affiliation(s)
- Parijat Borah
- Department of Chemistry; School of Science; The University of Tokyo; Hongo, Bunkyo-ku Tokyo 113-0033 Japan
| | - Yasuhiro Yamashita
- Department of Chemistry; School of Science; The University of Tokyo; Hongo, Bunkyo-ku Tokyo 113-0033 Japan
| | - Shū Kobayashi
- Department of Chemistry; School of Science; The University of Tokyo; Hongo, Bunkyo-ku Tokyo 113-0033 Japan
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20
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Bdiri B, Zhao BJ, Zhou ZM. Recent advances in the enantioselective 1,3-dipolar cycloaddition of azomethine ylides and dipolarophiles. ACTA ACUST UNITED AC 2017. [DOI: 10.1016/j.tetasy.2017.05.010] [Citation(s) in RCA: 82] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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21
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Zhu YP, Mampuys P, Sergeyev S, Ballet S, Maes BUW. Amine Activation:N-Arylamino Acid Amide Synthesis from Isothioureas and Amino Acids. Adv Synth Catal 2017. [DOI: 10.1002/adsc.201700134] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Yan-Ping Zhu
- Organic Synthesis, Department of Chemistry; University of Antwerp; Groenenborgerlaan 171, B- 2020 Antwerp Belgium
| | - Pieter Mampuys
- Organic Synthesis, Department of Chemistry; University of Antwerp; Groenenborgerlaan 171, B- 2020 Antwerp Belgium
| | - Sergey Sergeyev
- Organic Synthesis, Department of Chemistry; University of Antwerp; Groenenborgerlaan 171, B- 2020 Antwerp Belgium
| | - Steven Ballet
- Research Group of Organic Chemistry; Departments of Bioengineering Sciences and Chemistry; Vrije Universiteit Brussel; Pleinlaan 2, B- 1050 Brussels Belgium
| | - Bert U. W. Maes
- Organic Synthesis, Department of Chemistry; University of Antwerp; Groenenborgerlaan 171, B- 2020 Antwerp Belgium
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22
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Miguélez J, Miyamura H, Kobayashi S. A Polystyrene‐Supported Phase‐Transfer Catalyst for Asymmetric Michael Addition of Glycine‐Derived Imines to α,β‐Unsaturated Ketones. Adv Synth Catal 2017. [DOI: 10.1002/adsc.201700155] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Javier Miguélez
- Department of Chemistry, School of Science The University of Tokyo Hongo, Bunkyo-ku, Tokyo 113-0033 Japan
| | - Hiroyuki Miyamura
- Department of Chemistry, School of Science The University of Tokyo Hongo, Bunkyo-ku, Tokyo 113-0033 Japan
| | - Shū Kobayashi
- Department of Chemistry, School of Science The University of Tokyo Hongo, Bunkyo-ku, Tokyo 113-0033 Japan
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23
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Liu B, Zhang ZM, Xu B, Xu S, Wu HH, Liu Y, Zhang J. Cu(i)-catalyzed Michael addition of ketiminoesters to β-trifluoromethyl β,β-disubstituted enones: rapid access to 1-pyrrolines bearing a quaternary all-carbon stereocenter. Org Chem Front 2017. [DOI: 10.1039/c7qo00291b] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Chiral pyrrolines with two contiguous stereocenters, including a trifluoromethylated quaternary all-carbon stereocenter, were provided from β-trifluoromethyl β,β-disubstituted enones and glycine ketoimino ester.
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Affiliation(s)
- Bing Liu
- Shanghai Key Laboratory of Green Chemistry and Chemical Process
- School of Chemistry and Molecular Engineering
- East China Normal University
- Shanghai 200062
- China
| | - Zhan-Ming Zhang
- Shanghai Key Laboratory of Green Chemistry and Chemical Process
- School of Chemistry and Molecular Engineering
- East China Normal University
- Shanghai 200062
- China
| | - Bing Xu
- Shanghai Key Laboratory of Green Chemistry and Chemical Process
- School of Chemistry and Molecular Engineering
- East China Normal University
- Shanghai 200062
- China
| | - Shan Xu
- Shanghai Key Laboratory of Green Chemistry and Chemical Process
- School of Chemistry and Molecular Engineering
- East China Normal University
- Shanghai 200062
- China
| | - Hai-Hong Wu
- Shanghai Key Laboratory of Green Chemistry and Chemical Process
- School of Chemistry and Molecular Engineering
- East China Normal University
- Shanghai 200062
- China
| | - Yuanyuan Liu
- Shanghai Key Laboratory of Green Chemistry and Chemical Process
- School of Chemistry and Molecular Engineering
- East China Normal University
- Shanghai 200062
- China
| | - Junliang Zhang
- Shanghai Key Laboratory of Green Chemistry and Chemical Process
- School of Chemistry and Molecular Engineering
- East China Normal University
- Shanghai 200062
- China
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24
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Wen S, Li X, Yao W, Waheed A, Ullah N, Lu Y. Highly Enantioselective Conjugate Addition of Glycine Imines to Activated Alkenes Catalyzed by Amino-Acid-Derived Chiral Phosphonium Salts. European J Org Chem 2016. [DOI: 10.1002/ejoc.201600794] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Shan Wen
- Department of Chemistry; National University of Singapore; 3 Science Drive 3 117543 Singapore Singapore
| | - Xing Li
- Department of Chemistry; National University of Singapore; 3 Science Drive 3 117543 Singapore Singapore
| | - Weijun Yao
- Department of Chemistry; National University of Singapore; 3 Science Drive 3 117543 Singapore Singapore
| | - Abdul Waheed
- Chemistry Department; King Fahd University of Petroleum and Materials; 31261 Dhahran Saudi Arabia
| | - Nisar Ullah
- Chemistry Department; King Fahd University of Petroleum and Materials; 31261 Dhahran Saudi Arabia
| | - Yixin Lu
- Department of Chemistry; National University of Singapore; 3 Science Drive 3 117543 Singapore Singapore
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25
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Bai XF, Li L, Xu Z, Zheng ZJ, Xia CG, Cui YM, Xu LW. Asymmetric Michael Addition of Aldimino Esters with Chalcones Catalyzed by Silver/Xing-Phos: Mechanism-Oriented Divergent Synthesis of Chiral Pyrrolines. Chemistry 2016; 22:10399-404. [DOI: 10.1002/chem.201601945] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2016] [Indexed: 11/10/2022]
Affiliation(s)
- Xing-Feng Bai
- State Key Laboratory for Oxo Synthesis and Selective Oxidation; Lanzhou Institute of Chemical Physics (CAS) and; University of the Chinese Academy of Sciences; P. R. China
| | - Li Li
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education; Hangzhou Normal University; P. R. China
| | - Zheng Xu
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education; Hangzhou Normal University; P. R. China
| | - Zhan-Jiang Zheng
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education; Hangzhou Normal University; P. R. China
| | - Chun-Gu Xia
- State Key Laboratory for Oxo Synthesis and Selective Oxidation; Lanzhou Institute of Chemical Physics (CAS) and; University of the Chinese Academy of Sciences; P. R. China
| | - Yu-Ming Cui
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education; Hangzhou Normal University; P. R. China
| | - Li-Wen Xu
- State Key Laboratory for Oxo Synthesis and Selective Oxidation; Lanzhou Institute of Chemical Physics (CAS) and; University of the Chinese Academy of Sciences; P. R. China
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education; Hangzhou Normal University; P. R. China
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26
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Albanese DCM, Foschi F, Penso M. Sustainable Oxidations under Phase-Transfer Catalysis Conditions. Org Process Res Dev 2016. [DOI: 10.1021/acs.oprd.5b00385] [Citation(s) in RCA: 50] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Domenico C. M. Albanese
- Department
of Chemistry, Università degli Studi di Milano, via Golgi
19, 20133 Milano, Italy
| | - Francesca Foschi
- Institute of Molecular
Science and Technologies (ISTM-CNR), via Golgi 19, 20133 Milano, Italy
| | - Michele Penso
- Institute of Molecular
Science and Technologies (ISTM-CNR), via Golgi 19, 20133 Milano, Italy
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27
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Kaneko S, Kumatabara Y, Shirakawa S. A new generation of chiral phase-transfer catalysts. Org Biomol Chem 2016; 14:5367-76. [PMID: 26754659 DOI: 10.1039/c5ob02446c] [Citation(s) in RCA: 94] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Phase-transfer catalysis has long been recognized as a versatile method for organic synthesis. In particular, over more than the past three decades, asymmetric phase-transfer catalysis based on the use of structurally well-defined chiral catalysts has become a topic of great scientific interest. Although various effective chiral catalysts have already been reported and these catalysts were utilized for practical asymmetric transformations, further design and development of new chiral phase-transfer catalysts are still attractive research subjects in organic chemistry due to the high utility and practicability of phase-transfer-catalyzed reactions. This review focuses on the recent examples of newly designed effective chiral phase-transfer catalysts.
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Affiliation(s)
- Shiho Kaneko
- Department of Environmental Science, Graduate School of Fisheries and Environmental Sciences, Nagasaki University, 1-14, Bunkyo-machi, Nagasaki 852-8521, Japan.
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28
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He FS, Jin JH, Yang ZT, Yu X, Fossey JS, Deng WP. Direct Asymmetric Synthesis of β-Bis-Aryl-α-Amino Acid Esters via Enantioselective Copper-Catalyzed Addition of p-Quinone Methides. ACS Catal 2015. [DOI: 10.1021/acscatal.5b02619] [Citation(s) in RCA: 147] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Fu-Sheng He
- School of Pharmacy and Shanghai Key Laboratory of New Drug Design, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Jing-Hai Jin
- School of Pharmacy and Shanghai Key Laboratory of New Drug Design, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Zhong-Tao Yang
- School of Pharmacy and Shanghai Key Laboratory of New Drug Design, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Xingxin Yu
- School of Pharmacy and Shanghai Key Laboratory of New Drug Design, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - John S. Fossey
- School of Chemistry, University of Birmingham, Edgbaston, Birmingham, West Midlands B15 2TT, United Kingdom
| | - Wei-Ping Deng
- School of Pharmacy and Shanghai Key Laboratory of New Drug Design, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
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29
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Sun X, Chen Y, Wu N, Kang CS, Song HA, Jin S, Fu Y, Bryant H, Frank JA, Chong HS. Application of aziridinium ring opening for preparation of optically active diamine and triamine analogues: Highly efficient synthesis and evaluation of DTPA-based MRI contrast enhancement agents. RSC Adv 2015; 5:94571-94581. [PMID: 26989478 DOI: 10.1039/c5ra11306g] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Ring opening of aziridinium ions with nitrogen nucleophiles was applied to the highly efficient synthesis of optically active vicinal diamines and diethylene triamine pentaacetic acid (DTPA) analogues as potential magnetic resonance imaging (MRI) contrast enhancement agents. The synthetic method features a column-free isolation of the regiospecific and stereospecific nucleophilic substitution products of enantiomerically enriched aziridinium ions in excellent yield.
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Affiliation(s)
- Xiang Sun
- Department of Chemistry, Illinois Institute of Technology, Chicago, IL, USA
| | - Yunwei Chen
- Department of Chemistry, Illinois Institute of Technology, Chicago, IL, USA
| | - Ningjie Wu
- Department of Chemistry, Illinois Institute of Technology, Chicago, IL, USA
| | - Chi Soo Kang
- Department of Chemistry, Illinois Institute of Technology, Chicago, IL, USA
| | - Hyun A Song
- Department of Chemistry, Illinois Institute of Technology, Chicago, IL, USA
| | - Shengnan Jin
- Department of Chemistry, Illinois Institute of Technology, Chicago, IL, USA
| | - Yao Fu
- Department of Chemistry, Illinois Institute of Technology, Chicago, IL, USA
| | - Henry Bryant
- Laboratory of Diagnostic Radiology Research, Clinical Center, National Institutes of Health, Bethesda, Maryland, USA
| | - Joseph A Frank
- Laboratory of Diagnostic Radiology Research, Clinical Center, National Institutes of Health, Bethesda, Maryland, USA
| | - Hyun-Soon Chong
- Department of Chemistry, Illinois Institute of Technology, Chicago, IL, USA
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30
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Bai XF, Xu Z, Xia CG, Zheng ZJ, Xu LW. Aromatic-Amide-Derived Nonbiaryl Atropisomer as Highly Efficient Ligand for Asymmetric Silver-Catalyzed [3 + 2] Cycloaddition. ACS Catal 2015. [DOI: 10.1021/acscatal.5b01685] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Xing-Feng Bai
- State
Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou
Institute of Chemical Physics (CAS) and University of the Chinese Academy of Sciences, Lanzhou 730000, P. R. China
- Key
Laboratory of Organosilicon Chemistry and Material Technology of Ministry
of Education, Hangzhou Normal University, Hangzhou 311121 , P. R. China
| | - Zheng Xu
- Key
Laboratory of Organosilicon Chemistry and Material Technology of Ministry
of Education, Hangzhou Normal University, Hangzhou 311121 , P. R. China
| | - Chun-Gu Xia
- State
Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou
Institute of Chemical Physics (CAS) and University of the Chinese Academy of Sciences, Lanzhou 730000, P. R. China
| | - Zhan-Jiang Zheng
- Key
Laboratory of Organosilicon Chemistry and Material Technology of Ministry
of Education, Hangzhou Normal University, Hangzhou 311121 , P. R. China
| | - Li-Wen Xu
- State
Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou
Institute of Chemical Physics (CAS) and University of the Chinese Academy of Sciences, Lanzhou 730000, P. R. China
- Key
Laboratory of Organosilicon Chemistry and Material Technology of Ministry
of Education, Hangzhou Normal University, Hangzhou 311121 , P. R. China
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31
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Gao X, Han J, Wang L. Design of Highly Stable Iminophosphoranes as Recyclable Organocatalysts: Application to Asymmetric Chlorinations of Oxindoles. Org Lett 2015; 17:4596-9. [DOI: 10.1021/acs.orglett.5b02323] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Xing Gao
- Key
Laboratory for Advanced Materials and Institute of Fine Chemicals, East China University of Science and Technology, Meilong Road, 130, Shanghai 200237, P. R. China
- Shanghai−Hong
Kong Joint Laboratory in Chemical Synthesis, Shanghai Institute of Organic Chemistry, The Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, P. R. China
| | - Jianwei Han
- Shanghai−Hong
Kong Joint Laboratory in Chemical Synthesis, Shanghai Institute of Organic Chemistry, The Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, P. R. China
| | - Limin Wang
- Key
Laboratory for Advanced Materials and Institute of Fine Chemicals, East China University of Science and Technology, Meilong Road, 130, Shanghai 200237, P. R. China
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32
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Tiffner M, Novacek J, Busillo A, Gratzer K, Massa A, Waser M. Design of chiral urea-quaternary ammonium salt hybrid catalysts for asymmetric reactions of glycine Schiff bases. RSC Adv 2015; 5:78941-78949. [PMID: 26504516 PMCID: PMC4618300 DOI: 10.1039/c5ra14466c] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Bifunctional chiral urea-containing quaternary ammonium salts can be straightforwardly synthesised in good yield and with high structural diversity via a scalable and operationally simple highly telescoped sequence starting from trans-1,2-cyclohexanediamine. These novel hybrid catalysts were systematically investigated for their potential to control glycine Schiff bases in asymmetric addition reactions. It was found that Michael addition reactions and the herein presented aldol-initiated cascade reaction can be carried out to provide enantiomeric ratios up to 95 : 5 and good yields under mild conditions at room temperature.
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Affiliation(s)
- Maximilian Tiffner
- Institute of Organic Chemistry, Johannes Kepler University Linz, Altenbergerstraße 69, 4040 Linz, Austria
| | - Johanna Novacek
- Institute of Organic Chemistry, Johannes Kepler University Linz, Altenbergerstraße 69, 4040 Linz, Austria
| | - Alfonso Busillo
- Department of Chemistry and Biology, University of Salerno, 84084-Fisciano, Italy
| | - Katharina Gratzer
- Institute of Organic Chemistry, Johannes Kepler University Linz, Altenbergerstraße 69, 4040 Linz, Austria
| | - Antonio Massa
- Department of Chemistry and Biology, University of Salerno, 84084-Fisciano, Italy
| | - Mario Waser
- Institute of Organic Chemistry, Johannes Kepler University Linz, Altenbergerstraße 69, 4040 Linz, Austria
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33
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Zong L, Du S, Chin KF, Wang C, Tan CH. Enantioselective Synthesis of Quaternary Carbon Stereocenters: Addition of 3-Substituted Oxindoles to Vinyl Sulfone Catalyzed by Pentanidiums. Angew Chem Int Ed Engl 2015; 54:9390-3. [DOI: 10.1002/anie.201503844] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2015] [Revised: 05/25/2015] [Indexed: 12/27/2022]
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34
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Zong L, Du S, Chin KF, Wang C, Tan CH. Enantioselective Synthesis of Quaternary Carbon Stereocenters: Addition of 3-Substituted Oxindoles to Vinyl Sulfone Catalyzed by Pentanidiums. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201503844] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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35
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Cao D, Zhang J, Wang H, Zhao G. Dipeptide-Derived Multifunctional Quaternary Phosphonium Salt Catalyzed Asymmetric Cyclizations via a Tandem Michael Addition/SN2 Sequence. Chemistry 2015; 21:9998-10002. [DOI: 10.1002/chem.201501806] [Citation(s) in RCA: 57] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2015] [Indexed: 12/17/2022]
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36
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Bandar JS, Tanaset A, Lambert TH. Phase-transfer and other types of catalysis with cyclopropenium ions. Chemistry 2015; 21:7365-8. [PMID: 25820636 PMCID: PMC4617660 DOI: 10.1002/chem.201500124] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2015] [Indexed: 12/21/2022]
Abstract
This work establishes the cyclopropenium ion as a viable platform for efficient phase-transfer catalysis of a diverse range of organic transformations. The amenability of these catalysts to large-scale synthesis and structural modification is demonstrated. Evaluation of the molecular structure of an optimal catalyst reveals some unique structural features of these systems. Finally, a discussion of electronic charge distribution underscores an important consideration for catalyst design.
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Affiliation(s)
- Jeffrey S. Bandar
- Department of Chemistry, Columbia University, 3000 Broadway New York, NY 10027 (USA)
| | - Anont Tanaset
- Department of Chemistry, Columbia University, 3000 Broadway New York, NY 10027 (USA)
| | - Tristan H. Lambert
- Department of Chemistry, Columbia University, 3000 Broadway New York, NY 10027 (USA)
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37
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Jiang Q, Guo T, Yu Z. Copper-Catalyzed Tandem Asymmetric Borylation of β-Chloroalkyl Aryl Ketones and Related Compounds. ChemCatChem 2015. [DOI: 10.1002/cctc.201402823] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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38
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Larionov VA, Markelova EP, Smol'yakov AF, Savel'yeva TF, Maleev VI, Belokon YN. Chiral octahedral complexes of Co(iii) as catalysts for asymmetric epoxidation of chalcones under phase transfer conditions. RSC Adv 2015. [DOI: 10.1039/c5ra11760g] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Stereochemically inert and positively charged chiral complexes of Co(iii) were shown to catalyze the asymmetric epoxidation of chalcones with H2O2 under phase transfer conditions.
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Affiliation(s)
| | - Elina P. Markelova
- D.Mendeleev University of Chemistry Technology of Russia
- 125047 Moscow
- Russia
| | | | | | - Victor I. Maleev
- Nesmeyanov Institute of Organoelement Compounds
- 119991 Moscow
- Russia
| | - Yuri N. Belokon
- Nesmeyanov Institute of Organoelement Compounds
- 119991 Moscow
- Russia
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39
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Peng J, Wang X, Zhang X, Bai S, Zhao Y, Li C, Yang Q. Asymmetric hydrogenation by RuCl2(R-Binap)(dmf)n encapsulated in silica-based nanoreactors. Catal Sci Technol 2015. [DOI: 10.1039/c4cy00228h] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
RuCl2-(R-Binap)(dmf)n encapsulated in silica-based nanoreactors: a solid catalyst as a whole, but a homogeneous catalyst on the nanoscale.
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Affiliation(s)
- Juan Peng
- State Key Laboratory of Catalysis
- Dalian Institute of Chemical Physics
- Chinese Academy of Sciences
- Dalian 116023
- China
| | - Xuefeng Wang
- State Key Laboratory of Catalysis
- Dalian Institute of Chemical Physics
- Chinese Academy of Sciences
- Dalian 116023
- China
| | - Xiaoming Zhang
- State Key Laboratory of Catalysis
- Dalian Institute of Chemical Physics
- Chinese Academy of Sciences
- Dalian 116023
- China
| | - Shiyang Bai
- State Key Laboratory of Catalysis
- Dalian Institute of Chemical Physics
- Chinese Academy of Sciences
- Dalian 116023
- China
| | - Yaopeng Zhao
- State Key Laboratory of Catalysis
- Dalian Institute of Chemical Physics
- Chinese Academy of Sciences
- Dalian 116023
- China
| | - Can Li
- State Key Laboratory of Catalysis
- Dalian Institute of Chemical Physics
- Chinese Academy of Sciences
- Dalian 116023
- China
| | - Qihua Yang
- State Key Laboratory of Catalysis
- Dalian Institute of Chemical Physics
- Chinese Academy of Sciences
- Dalian 116023
- China
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40
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Zong L, Ban X, Kee CW, Tan CH. Catalytic Enantioselective Alkylation of Sulfenate Anions to Chiral Heterocyclic Sulfoxides Using Halogenated Pentanidium Salts. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201407512] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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41
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Zong L, Ban X, Kee CW, Tan CH. Catalytic Enantioselective Alkylation of Sulfenate Anions to Chiral Heterocyclic Sulfoxides Using Halogenated Pentanidium Salts. Angew Chem Int Ed Engl 2014; 53:11849-53. [DOI: 10.1002/anie.201407512] [Citation(s) in RCA: 108] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2014] [Indexed: 01/13/2023]
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42
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Maleev VI, North M, Larionov VA, Fedyanin IV, Savel'yeva TF, Moscalenko MA, Smolyakov AF, Belokon YN. Chiral Octahedral Complexes of Cobalt(III) as “Organic Catalysts in Disguise” for the Asymmetric Addition of a Glycine Schiff Base Ester to Activated Olefins. Adv Synth Catal 2014. [DOI: 10.1002/adsc.201400091] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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43
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Konno T, Watanabe S, Takahashi T, Tokoro Y, Fukuzawa SI. Silver/ThioClickFerrophos Complex as an Effective Catalyst for Asymmetric Conjugate Addition of Glycine Imino Ester to Unsaturated Malonates and α-Enones. Org Lett 2013; 15:4418-21. [DOI: 10.1021/ol4019584] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Takashi Konno
- Department of Applied Chemistry, Institute of Science and Engineering, Chuo University, Tokyo, Japan
| | - Sayo Watanabe
- Department of Applied Chemistry, Institute of Science and Engineering, Chuo University, Tokyo, Japan
| | - Tatsuki Takahashi
- Department of Applied Chemistry, Institute of Science and Engineering, Chuo University, Tokyo, Japan
| | - Yuichiro Tokoro
- Department of Applied Chemistry, Institute of Science and Engineering, Chuo University, Tokyo, Japan
| | - Shin-ichi Fukuzawa
- Department of Applied Chemistry, Institute of Science and Engineering, Chuo University, Tokyo, Japan
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