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Larghi EL, Bracca ABJ, Simonetti SO, Kaufman TS. Relevant Developments in the Use of Three-Component Reactions for the Total Synthesis of Natural Products. The last 15 Years. ChemistryOpen 2024; 13:e202300306. [PMID: 38647363 PMCID: PMC11095226 DOI: 10.1002/open.202300306] [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: 12/14/2023] [Revised: 03/26/2024] [Indexed: 04/25/2024] Open
Abstract
Multicomponent reactions (MCRs) offer a highly useful and valuable strategy that can fulfill an important role in synthesizing complex polysubstituted compounds, by simplifying otherwise long sequences and increasing their efficiency. The total synthesis of selected natural products employing three-component reactions as their common strategic MCR approach, is reviewed on a case-by-case basis with selected targets conquered during the last 15 years. The revision includes detailed descriptions of the selected successful sequences; relevant information on the isolation, and bioactivity of the different natural targets is also briefly provided.
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Affiliation(s)
- Enrique L. Larghi
- Instituto de Química Rosario IQUIR (CONICET-UNR)Facultad de Ciencias Bioquímicas y FarmacéuticasUniversidad Nacional de Rosario (UNR)Suipacha 5312000RosarioArgentina
| | - Andrea B. J. Bracca
- Instituto de Química Rosario IQUIR (CONICET-UNR)Facultad de Ciencias Bioquímicas y FarmacéuticasUniversidad Nacional de Rosario (UNR)Suipacha 5312000RosarioArgentina
| | - Sebastian O. Simonetti
- Instituto de Química Rosario IQUIR (CONICET-UNR)Facultad de Ciencias Bioquímicas y FarmacéuticasUniversidad Nacional de Rosario (UNR)Suipacha 5312000RosarioArgentina
| | - Teodoro S. Kaufman
- Instituto de Química Rosario IQUIR (CONICET-UNR)Facultad de Ciencias Bioquímicas y FarmacéuticasUniversidad Nacional de Rosario (UNR)Suipacha 5312000RosarioArgentina
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2
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Li X, Song Q. "Homoleptic" Tetracoordinate Boron Compounds. Inorg Chem 2024; 63:5295-5314. [PMID: 38488071 DOI: 10.1021/acs.inorgchem.4c00102] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/26/2024]
Abstract
"Homoleptic" tetracoordinate boron compounds, in which the central boron atom links to four identical atoms, are a special and important family of boron compounds. During the past decades, they have been extensively employed in inorganic, organic, macromolecular, and materials chemistry. Many of them exhibit a diverse range of outstanding properties, and therefore, the synthesis and application of those compounds have emerged as a hot research topic in modern boron chemistry. This review summarizes and discusses the "homoleptic" tetracoordinate boron compounds, which are organized according to the kinds of atoms coordinated to the central boron.
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Affiliation(s)
- Xin Li
- Institute of Next Generation Matter Transformation, College of Materials Science & Engineering, Huaqiao University, Xiamen, Fujian 361021, China
| | - Qiuling Song
- Key Laboratory of Molecule Synthesis and Function Discovery, Fujian Province University, College of Chemistry, Fuzhou University, Fuzhou, Fujian 350108, China
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3
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Zhai P, Fang Y, Li W, Lin J, Li X. Three-Component Synthesis of Di-Keto Aziridines and Highly Functionalized Alkenes from Sulfoxonium Ylides, Nitrosoarenes, and Alkynes. J Org Chem 2023; 88:12194-12207. [PMID: 37590322 DOI: 10.1021/acs.joc.3c00062] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/19/2023]
Abstract
A catalyst-free one-pot three-component method of sulfoxonium ylides, nitrosoarenes, and alkynes for the synthesis of highly functionalized di-keto aziridines and alkenes is described. This strategy features the catalyst-free and additive-free approach, the employment of safe, more stable, and readily accessible sulfoxonium ylides, which bear a much wider substrate scope as starting materials. In terms of terminal alkynes, a cascade reaction of nitrone formation/1,3-diploar cycloaddition/Baldwin rearrangement is involved to afford a wide variety of di-keto aziridines. However, highly functionalized alkenes could be obtained instead of di-keto aziridines through the same nitrone formation/1,3-diploar cycloaddition and another different rearrangement reaction when internal alkynes are employed as starting materials.
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Affiliation(s)
- Pingan Zhai
- College of Biomedical Engineering, Taiyuan University of Technology, 79 West Yingze Street, Taiyuan 030024, People's Republic of China
| | - Yongsheng Fang
- College of Biomedical Engineering, Taiyuan University of Technology, 79 West Yingze Street, Taiyuan 030024, People's Republic of China
| | - Wenhui Li
- College of Biomedical Engineering, Taiyuan University of Technology, 79 West Yingze Street, Taiyuan 030024, People's Republic of China
| | - Jianying Lin
- College of Biomedical Engineering, Taiyuan University of Technology, 79 West Yingze Street, Taiyuan 030024, People's Republic of China
| | - Xing Li
- College of Biomedical Engineering, Taiyuan University of Technology, 79 West Yingze Street, Taiyuan 030024, People's Republic of China
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4
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Osminski WEG, Lu Z, Zhao W, Mohammadlou A, Yin X, Matthews EC, Canestraight VM, Staples RJ, Allen CJ, Hirschi JS, Wulff WD. Probing Catalyst Function - Electronic Modulation of Chiral Polyborate Anionic Catalysts. J Org Chem 2021; 86:17762-17773. [PMID: 34852456 DOI: 10.1021/acs.joc.1c01769] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Boroxinate complexes of VAPOL and VANOL are a chiral anionic platform that can serve as a versatile staging arena for asymmetric catalysis. The structural underpinning of the platform is a chiral polyborate core that covalently links together alcohols (or phenols) and vaulted biaryl ligands. The polyborate platform is assembled in situ by the substrate of the reaction, and thus a multiplex of chiral catalysts can be rapidly assembled from various alcohols (or phenols) and bis-phenol ligands for screening of catalyst activity. In the present study, variations in the steric and electronic properties of the phenol/alcohol component of the boroxinate catalyst are probed to reveal their effects on the asymmetric induction in the catalytic asymmetric aziridination reaction. A Hammett study is consistent with a mechanism in which the two substrates are hydrogen-bonded to the boroxinate core in the enantiogenic step. The results of the Hammett study are supported by a computational study in which it is found that the H-O distance of the protonated imine hydrogen bonded to the anionic boroxinate core decreases with an increase in the electron releasing ability of the phenol unit incorporated into the boroxinate. The results are not consistent with a mechanism in which the boroxinate catalyst functions as a Lewis acid and activates the imine by a Lewis acid/Lewis base interaction.
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Affiliation(s)
- Wynter E G Osminski
- Department of Chemistry, Michigan State University, East Lansing, Michigan 48824, United States
| | - Zhenjie Lu
- Department of Chemistry, Michigan State University, East Lansing, Michigan 48824, United States
| | - Wenjun Zhao
- Department of Chemistry, Michigan State University, East Lansing, Michigan 48824, United States
| | - Aliakbar Mohammadlou
- Department of Chemistry, Michigan State University, East Lansing, Michigan 48824, United States
| | - Xiaopeng Yin
- Department of Chemistry, Michigan State University, East Lansing, Michigan 48824, United States
| | - Emily C Matthews
- Department of Chemistry, Michigan State University, East Lansing, Michigan 48824, United States
| | - Virginia M Canestraight
- Department of Chemistry, Michigan State University, East Lansing, Michigan 48824, United States
| | - Richard J Staples
- Department of Chemistry, Michigan State University, East Lansing, Michigan 48824, United States
| | - Connor J Allen
- Department of Chemistry, Binghamton University, Binghamton, New York 13902, United States
| | - Jennifer S Hirschi
- Department of Chemistry, Binghamton University, Binghamton, New York 13902, United States
| | - William D Wulff
- Department of Chemistry, Michigan State University, East Lansing, Michigan 48824, United States
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5
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Strumfs B, Uljanovs R, Velikijs K, Trapencieris P, Strumfa I. 3-Arylaziridine-2-carboxylic Acid Derivatives and (3-Arylaziridin-2-yl)ketones: The Aziridination Approaches. Int J Mol Sci 2021; 22:ijms22189861. [PMID: 34576025 PMCID: PMC8469611 DOI: 10.3390/ijms22189861] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2021] [Accepted: 09/09/2021] [Indexed: 11/24/2022] Open
Abstract
Aziridination reactions represent a powerful tool in aziridine synthesis. Significant progress has been achieved in this field in the last decades, whereas highly functionalized aziridines including 3-arylated aziridine-2-carbonyl compounds play an important role in both medical and synthetic chemistry. For the reasons listed, in the current review we have focused on the ways to obtain 3-arylated aziridines and on the recent advances (mainly since the year 2000) in the methodology of the synthesis of these compounds via aziridination.
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Affiliation(s)
- Boriss Strumfs
- Latvian Institute of Organic Synthesis, 21 Aizkraukles Street, LV-1006 Riga, Latvia; (B.S.); (P.T.)
- Department of Pathology, Riga Stradins University, 16 Dzirciema Street, LV-1007 Riga, Latvia; (R.U.); (K.V.)
| | - Romans Uljanovs
- Department of Pathology, Riga Stradins University, 16 Dzirciema Street, LV-1007 Riga, Latvia; (R.U.); (K.V.)
| | - Kirils Velikijs
- Department of Pathology, Riga Stradins University, 16 Dzirciema Street, LV-1007 Riga, Latvia; (R.U.); (K.V.)
| | - Peteris Trapencieris
- Latvian Institute of Organic Synthesis, 21 Aizkraukles Street, LV-1006 Riga, Latvia; (B.S.); (P.T.)
| | - Ilze Strumfa
- Department of Pathology, Riga Stradins University, 16 Dzirciema Street, LV-1007 Riga, Latvia; (R.U.); (K.V.)
- Correspondence:
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6
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Chai GL, Qiao Y, Zhang P, Guo R, Wang J, Chang J. Chiral Hydroxytetraphenylene-Boron Complex Catalyzed Asymmetric Diels-Alder Cycloaddition of 2'-Hydroxychalcones. Org Lett 2020; 22:8023-8027. [PMID: 32991185 DOI: 10.1021/acs.orglett.0c02978] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
(S)-2,15-Cl2-DHTP-boron complex catalyst for the asymmetric Diels-Alder cycloaddition of 2'-hydroxychalcones and dienes was developed and tested. The resulting cyclohexenes with three chiral centers were obtained in high yields (up to 98%) with excellent stereoselectivities (up to >20:1 endo/exo, >99% ee). This catalytic system features high efficiency, broad substrate scopes, and mild reaction conditions. In addition, a DFT study was performed to explain the stereochemical course of the asymmetric induction.
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Affiliation(s)
- Guo-Li Chai
- Henan Key Laboratory of Organic Functional Molecules and Drug Innovation, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China
| | - Yan Qiao
- College of Chemistry, Zhengzhou University, Zhengzhou 450001, China
| | - Ping Zhang
- Henan Key Laboratory of Organic Functional Molecules and Drug Innovation, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China
| | - Rong Guo
- Henan Key Laboratory of Organic Functional Molecules and Drug Innovation, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China
| | - Juan Wang
- Henan Key Laboratory of Organic Functional Molecules and Drug Innovation, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China
| | - Junbiao Chang
- Henan Key Laboratory of Organic Functional Molecules and Drug Innovation, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China
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7
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Yin X, Zheng L, Mohammadlou A, Cagnon BR, Wulff WD. Resolution of Vaulted Biaryl Ligands via Borate Esters of Quinine and Quinidine. J Org Chem 2020; 85:10432-10450. [PMID: 32687706 DOI: 10.1021/acs.joc.0c00494] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Given the sudden and unexplained rise in the cost of (+)- and (-)-sparteine, an alternative method for the resolution of vaulted biaryls has been developed. This method involves the reaction of a racemic vaulted biaryl ligand with one equivalent of BH3·SMe2 and one equivalent of either quinine or quinidine. A precipitate then forms from the resulting mixture of diastereomeric borates as a result of differential solubilities. Hydrolysis of the precipitate then liberates the (S)-ligand in the case of quinine and the (R)-ligand in the case of quinidine, both with >99% ee. This method has been applied to 16 different vaulted biaryl ligands, including 10 whose preparation is described here for the first time. In addition, proof of principle has been demonstrated for the dynamic thermodynamic resolution of the vaulted biaryl ligands with this method in combination with a nonchiral copper(II) complex that can racemize the ligand.
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Affiliation(s)
- Xiaopeng Yin
- Department of Chemistry, Michigan State University, East Lansing, Michigan 48824, United States
| | - Li Zheng
- Department of Chemistry, Michigan State University, East Lansing, Michigan 48824, United States
| | - Aliakbar Mohammadlou
- Department of Chemistry, Michigan State University, East Lansing, Michigan 48824, United States
| | - Brian R Cagnon
- Department of Chemistry, Michigan State University, East Lansing, Michigan 48824, United States
| | - William D Wulff
- Department of Chemistry, Michigan State University, East Lansing, Michigan 48824, United States
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8
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Li X, Feng T, Li D, Chang H, Gao W, Wei W. Straightforward Approach toward Multifunctionalized Aziridines via Catalyst-Free Three-Component Reactions of α-Diazoesters, Nitrosoarenes, and Alkynes. J Org Chem 2020; 85:9538-9547. [PMID: 32640794 DOI: 10.1021/acs.joc.0c00368] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A straightforward, catalyst-free atom- and step-economical approach for the synthesis of multisubstituted 1-arylaziridine-2-carboxylates via one-pot three-component reactions of α-diazoesters, nitrosoarenes, and alkynes has been described. This method could provide facile access to a variety of multifunctionalized aziridines in up to 91% yields under mild reaction conditions and features the catalyst-free strategy and use of cheap and readily accessible starting materials.
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Affiliation(s)
- Xing Li
- Department of Biomedical Engineering, Taiyuan University of Technology, 79 West Yingze Street, Taiyuan 030024, People's Republic of China
| | - Tao Feng
- Department of Biomedical Engineering, Taiyuan University of Technology, 79 West Yingze Street, Taiyuan 030024, People's Republic of China
| | - Dongjun Li
- Department of Biomedical Engineering, Taiyuan University of Technology, 79 West Yingze Street, Taiyuan 030024, People's Republic of China
| | - Honghong Chang
- Department of Biomedical Engineering, Taiyuan University of Technology, 79 West Yingze Street, Taiyuan 030024, People's Republic of China
| | - Wenchao Gao
- Department of Biomedical Engineering, Taiyuan University of Technology, 79 West Yingze Street, Taiyuan 030024, People's Republic of China
| | - Wenlong Wei
- Department of Biomedical Engineering, Taiyuan University of Technology, 79 West Yingze Street, Taiyuan 030024, People's Republic of China
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9
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Uraguchi D, Ueoka F, Tanaka N, Kizu T, Takahashi W, Ooi T. A Structurally Robust Chiral Borate Ion: Molecular Design, Synthesis, and Asymmetric Catalysis. Angew Chem Int Ed Engl 2020; 59:11456-11461. [DOI: 10.1002/anie.202001637] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2020] [Revised: 03/12/2020] [Indexed: 02/02/2023]
Affiliation(s)
- Daisuke Uraguchi
- Department of Molecular and Macromolecular Chemistry Graduate School of Engineering Nagoya University Nagoya 464-8603 Japan
| | - Fumito Ueoka
- Department of Molecular and Macromolecular Chemistry Graduate School of Engineering Nagoya University Nagoya 464-8603 Japan
| | - Naoya Tanaka
- Department of Molecular and Macromolecular Chemistry Graduate School of Engineering Nagoya University Nagoya 464-8603 Japan
| | - Tomohito Kizu
- Department of Molecular and Macromolecular Chemistry Graduate School of Engineering Nagoya University Nagoya 464-8603 Japan
| | - Wakana Takahashi
- Department of Molecular and Macromolecular Chemistry Graduate School of Engineering Nagoya University Nagoya 464-8603 Japan
| | - Takashi Ooi
- Department of Molecular and Macromolecular Chemistry Graduate School of Engineering Nagoya University Nagoya 464-8603 Japan
- Institute of Transformative Bio-Molecules (WPI-ITbM) Nagoya University Nagoya 464-8601 Japan
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10
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Uraguchi D, Ueoka F, Tanaka N, Kizu T, Takahashi W, Ooi T. A Structurally Robust Chiral Borate Ion: Molecular Design, Synthesis, and Asymmetric Catalysis. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202001637] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Daisuke Uraguchi
- Department of Molecular and Macromolecular Chemistry Graduate School of Engineering Nagoya University Nagoya 464-8603 Japan
| | - Fumito Ueoka
- Department of Molecular and Macromolecular Chemistry Graduate School of Engineering Nagoya University Nagoya 464-8603 Japan
| | - Naoya Tanaka
- Department of Molecular and Macromolecular Chemistry Graduate School of Engineering Nagoya University Nagoya 464-8603 Japan
| | - Tomohito Kizu
- Department of Molecular and Macromolecular Chemistry Graduate School of Engineering Nagoya University Nagoya 464-8603 Japan
| | - Wakana Takahashi
- Department of Molecular and Macromolecular Chemistry Graduate School of Engineering Nagoya University Nagoya 464-8603 Japan
| | - Takashi Ooi
- Department of Molecular and Macromolecular Chemistry Graduate School of Engineering Nagoya University Nagoya 464-8603 Japan
- Institute of Transformative Bio-Molecules (WPI-ITbM) Nagoya University Nagoya 464-8601 Japan
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11
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Guo H, Zhang L, Zhou H, Meng W, Ao Y, Wang D, Wang Q. Substrate‐Induced Dimerization Assembly of Chiral Macrocycle Catalysts toward Cooperative Asymmetric Catalysis. Angew Chem Int Ed Engl 2020; 59:2623-2627. [DOI: 10.1002/anie.201910399] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2019] [Revised: 12/02/2019] [Indexed: 11/08/2022]
Affiliation(s)
- Hao Guo
- Beijing National Laboratory for Molecular SciencesCAS Key Laboratory of Molecular Recognition and FunctionInstitute of ChemistryChinese Academy of Sciences Beijing 100190 China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Lie‐Wei Zhang
- Beijing National Laboratory for Molecular SciencesCAS Key Laboratory of Molecular Recognition and FunctionInstitute of ChemistryChinese Academy of Sciences Beijing 100190 China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Hao Zhou
- Beijing National Laboratory for Molecular SciencesCAS Key Laboratory of Molecular Recognition and FunctionInstitute of ChemistryChinese Academy of Sciences Beijing 100190 China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Wei Meng
- Beijing National Laboratory for Molecular SciencesCAS Key Laboratory of Molecular Recognition and FunctionInstitute of ChemistryChinese Academy of Sciences Beijing 100190 China
| | - Yu‐Fei Ao
- Beijing National Laboratory for Molecular SciencesCAS Key Laboratory of Molecular Recognition and FunctionInstitute of ChemistryChinese Academy of Sciences Beijing 100190 China
| | - De‐Xian Wang
- Beijing National Laboratory for Molecular SciencesCAS Key Laboratory of Molecular Recognition and FunctionInstitute of ChemistryChinese Academy of Sciences Beijing 100190 China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Qi‐Qiang Wang
- Beijing National Laboratory for Molecular SciencesCAS Key Laboratory of Molecular Recognition and FunctionInstitute of ChemistryChinese Academy of Sciences Beijing 100190 China
- University of Chinese Academy of Sciences Beijing 100049 China
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12
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Guo H, Zhang L, Zhou H, Meng W, Ao Y, Wang D, Wang Q. Substrate‐Induced Dimerization Assembly of Chiral Macrocycle Catalysts toward Cooperative Asymmetric Catalysis. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.201910399] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Hao Guo
- Beijing National Laboratory for Molecular SciencesCAS Key Laboratory of Molecular Recognition and FunctionInstitute of ChemistryChinese Academy of Sciences Beijing 100190 China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Lie‐Wei Zhang
- Beijing National Laboratory for Molecular SciencesCAS Key Laboratory of Molecular Recognition and FunctionInstitute of ChemistryChinese Academy of Sciences Beijing 100190 China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Hao Zhou
- Beijing National Laboratory for Molecular SciencesCAS Key Laboratory of Molecular Recognition and FunctionInstitute of ChemistryChinese Academy of Sciences Beijing 100190 China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Wei Meng
- Beijing National Laboratory for Molecular SciencesCAS Key Laboratory of Molecular Recognition and FunctionInstitute of ChemistryChinese Academy of Sciences Beijing 100190 China
| | - Yu‐Fei Ao
- Beijing National Laboratory for Molecular SciencesCAS Key Laboratory of Molecular Recognition and FunctionInstitute of ChemistryChinese Academy of Sciences Beijing 100190 China
| | - De‐Xian Wang
- Beijing National Laboratory for Molecular SciencesCAS Key Laboratory of Molecular Recognition and FunctionInstitute of ChemistryChinese Academy of Sciences Beijing 100190 China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Qi‐Qiang Wang
- Beijing National Laboratory for Molecular SciencesCAS Key Laboratory of Molecular Recognition and FunctionInstitute of ChemistryChinese Academy of Sciences Beijing 100190 China
- University of Chinese Academy of Sciences Beijing 100049 China
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13
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Kang KT, Park SH, Ryu DH. Enantioselective Strecker and Allylation Reactions with Aldimines Catalyzed by Chiral Oxazaborolidinium Ions. Org Lett 2019; 21:6679-6683. [PMID: 31429578 DOI: 10.1021/acs.orglett.9b02280] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Chiral oxazaborolidinium ion (COBI)-catalyzed enantioselective nucleophilic addition reactions of aldimines using tributyltin cyanide and allyltributylstannane have been developed. Various α-aminonitriles and homoallylic amines were synthesized in high yield (up to 98%) with high to excellent enantioselectivity (up to 99% ee). A rational mechanistic model for the complex of COBI and aldimine is provided to account for these enantioselective reactions.
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Affiliation(s)
- Ki-Tae Kang
- Department of Chemistry, Sungkyunkwan University, Suwon 16419, Korea
| | - Sang Hyun Park
- Department of Chemistry, Sungkyunkwan University, Suwon 16419, Korea
| | - Do Hyun Ryu
- Department of Chemistry, Sungkyunkwan University, Suwon 16419, Korea
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14
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Sugimoto K, Oshiro M, Hada R, Matsuya Y. 2,2'-Biphenol/B(OH) 3 Catalyst System for Nazarov Cyclization. Chem Pharm Bull (Tokyo) 2019; 67:1019-1022. [PMID: 31474725 DOI: 10.1248/cpb.c19-00399] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
A novel catalyst system-a combination of the readily available 2,2'-biphenol with the inexpensive, nontoxic, and eco-friendly B(OH)3-promoted the Nazarov cyclization of activated and inactivated divinyl ketones to afford the corresponding cyclopentenones up to 96% yield under, in a cis-selective manner. Compared with the conventional harsh conditions with hazardous reagents, user-friendly method was established with bench-stable and easy-to-handle reagents.
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Affiliation(s)
- Kenji Sugimoto
- Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama
| | - Miyu Oshiro
- Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama
| | - Ryuhei Hada
- Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama
| | - Yuji Matsuya
- Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama
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15
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Gupta AK, Yin X, Mukherjee M, Desai AA, Mohammadlou A, Jurewicz K, Wulff WD. Catalytic Asymmetric Epoxidation of Aldehydes with Two VANOL-Derived Chiral Borate Catalysts. Angew Chem Int Ed Engl 2019; 58:3361-3367. [PMID: 30556933 DOI: 10.1002/anie.201809511] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2018] [Revised: 12/13/2018] [Indexed: 12/15/2022]
Abstract
A highly diastereo- and enantioselective method for the epoxidation of aldehydes with α-diazoacetamides has been developed with two different borate ester catalysts of VANOL. Both catalytic systems are general for aromatic, aliphatic, and acetylenic aldehydes, giving high yields and inductions for nearly all cases. One borate ester catalyst has two molecules of VANOL and the other only one VANOL. Catalysts generated from BINOL and VAPOL are ineffective catalysts. An application is shown for access to the side-chain of taxol.
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Affiliation(s)
- Anil K Gupta
- Department of Chemistry, Michigan State University, East Lansing, MI, 48824, USA
| | - Xiaopeng Yin
- Department of Chemistry, Michigan State University, East Lansing, MI, 48824, USA
| | - Munmun Mukherjee
- Department of Chemistry, Michigan State University, East Lansing, MI, 48824, USA
| | - Aman A Desai
- Department of Chemistry, Michigan State University, East Lansing, MI, 48824, USA
| | - Aliakbar Mohammadlou
- Department of Chemistry, Michigan State University, East Lansing, MI, 48824, USA
| | - Kelsee Jurewicz
- Department of Chemistry, Michigan State University, East Lansing, MI, 48824, USA
| | - William D Wulff
- Department of Chemistry, Michigan State University, East Lansing, MI, 48824, USA
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16
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Gupta AK, Yin X, Mukherjee M, Desai AA, Mohammadlou A, Jurewicz K, Wulff WD. Catalytic Asymmetric Epoxidation of Aldehydes with Two VANOL-Derived Chiral Borate Catalysts. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201809511] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- Anil K. Gupta
- Department of Chemistry; Michigan State University; East Lansing MI 48824 USA
| | - Xiaopeng Yin
- Department of Chemistry; Michigan State University; East Lansing MI 48824 USA
| | - Munmun Mukherjee
- Department of Chemistry; Michigan State University; East Lansing MI 48824 USA
| | - Aman A. Desai
- Department of Chemistry; Michigan State University; East Lansing MI 48824 USA
| | | | - Kelsee Jurewicz
- Department of Chemistry; Michigan State University; East Lansing MI 48824 USA
| | - William D. Wulff
- Department of Chemistry; Michigan State University; East Lansing MI 48824 USA
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17
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de los Santos JM, Ochoa de Retana AM, Martínez de Marigorta E, Vicario J, Palacios F. Catalytic Asymmetric Darzens and Aza‐Darzens Reactions for the Synthesis of Chiral Epoxides and Aziridines. ChemCatChem 2018. [DOI: 10.1002/cctc.201801026] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Jesús M. de los Santos
- Departamento de Química Orgánica I Facultad de Farmacia Centro de Investigaciones y Estudios Avanzados “Lucio Lascaray” Universidad del País Vasco UPV/EHU Paseo de la Universidad 7 Vitoria 01006 Spain
| | - Ana M. Ochoa de Retana
- Departamento de Química Orgánica I Facultad de Farmacia Centro de Investigaciones y Estudios Avanzados “Lucio Lascaray” Universidad del País Vasco UPV/EHU Paseo de la Universidad 7 Vitoria 01006 Spain
| | - Edorta Martínez de Marigorta
- Departamento de Química Orgánica I Facultad de Farmacia Centro de Investigaciones y Estudios Avanzados “Lucio Lascaray” Universidad del País Vasco UPV/EHU Paseo de la Universidad 7 Vitoria 01006 Spain
| | - Javier Vicario
- Departamento de Química Orgánica I Facultad de Farmacia Centro de Investigaciones y Estudios Avanzados “Lucio Lascaray” Universidad del País Vasco UPV/EHU Paseo de la Universidad 7 Vitoria 01006 Spain
| | - Francisco Palacios
- Departamento de Química Orgánica I Facultad de Farmacia Centro de Investigaciones y Estudios Avanzados “Lucio Lascaray” Universidad del País Vasco UPV/EHU Paseo de la Universidad 7 Vitoria 01006 Spain
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18
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Chiral Diol-Based Organocatalysts in Enantioselective Reactions. Molecules 2018; 23:molecules23092317. [PMID: 30208621 PMCID: PMC6225256 DOI: 10.3390/molecules23092317] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2018] [Revised: 09/03/2018] [Accepted: 09/06/2018] [Indexed: 12/22/2022] Open
Abstract
Organocatalysis has emerged as a powerful synthetic tool in organic chemistry in the last few decades. Among various classes of organocatalysis, chiral diol-based scaffolds, such as BINOLs, VANOLs, and tartaric acid derivatives, have been widely used to induce enantioselectivity due to the ability of the hydroxyls to coordinate with the Lewis acidic sites of reagents or substrates and create a chiral environment for the transformation. In this review, we will discuss the applications of these diol-based catalysts in different types of reactions, including the scopes of reactions and the modes of catalyst activation. In general, the axially chiral aryl diol BINOL and VANOL derivatives serve as the most competent catalyst for most examples, but examples of exclusive success using other scaffolds, herein, suggests that they should not be overlooked. Lastly, the examples, to date, are mainly from tartrate and biaryl diol catalysts, suggesting that innovation may be available from new diol scaffolds.
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19
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Zheng Y, Bao M, Qiu L, Xu X. Thermally induced reaction of diazoamides with isatins: A complementary approach to the 3,3′-bioxindole derivatives. Tetrahedron Lett 2017. [DOI: 10.1016/j.tetlet.2017.07.053] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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20
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Hu G, Gupta AK, Huang L, Zhao W, Yin X, Osminski WEG, Huang RH, Wulff WD, Izzo JA, Vetticatt MJ. Pyro-Borates, Spiro-Borates, and Boroxinates of BINOL—Assembly, Structures, and Reactivity. J Am Chem Soc 2017; 139:10267-10285. [DOI: 10.1021/jacs.7b02317] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Gang Hu
- Department
of Chemistry, Michigan State University, East Lansing, Michigan 48824, United States
| | - Anil K. Gupta
- Department
of Chemistry, Michigan State University, East Lansing, Michigan 48824, United States
| | - Li Huang
- Department
of Chemistry, Michigan State University, East Lansing, Michigan 48824, United States
| | - Wenjun Zhao
- Department
of Chemistry, Michigan State University, East Lansing, Michigan 48824, United States
| | - Xiaopeng Yin
- Department
of Chemistry, Michigan State University, East Lansing, Michigan 48824, United States
| | - Wynter E. G. Osminski
- Department
of Chemistry, Michigan State University, East Lansing, Michigan 48824, United States
| | - Rui H. Huang
- Department
of Chemistry, Michigan State University, East Lansing, Michigan 48824, United States
| | - William D. Wulff
- Department
of Chemistry, Michigan State University, East Lansing, Michigan 48824, United States
| | - Joseph A. Izzo
- Department
of Chemistry, Binghamton University, Binghamton, New York 13902, United States
| | - Mathew J. Vetticatt
- Department
of Chemistry, Binghamton University, Binghamton, New York 13902, United States
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21
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Mukherjee M, Zhou Y, Dai Y, Gupta AK, Pulgam VR, Staples RJ, Wulff WD. Catalyst-Controlled Multicomponent Aziridination of Chiral Aldehydes. Chemistry 2017; 23:2552-2556. [PMID: 28005302 DOI: 10.1002/chem.201605955] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2016] [Indexed: 11/06/2022]
Abstract
A highly diastereoselective and enantioselective method for the multicomponent aziridination of chiral aldehydes has been developed with BOROX catalysts of the VANOL (3,3'-diphenyl-2,2'-bi-1-naphthol) and VAPOL (2,2'-diphenyl-(4-biphenanthrol)) ligands. Very high to perfect catalyst control is observed with most all substrates examined including aldehydes with chiral centers in the α- and β-positions. High catalyst control was also observed for a number of chiral heterocyclic aldehydes allowing for the preparation of epoxy aziridines, bis(aziridines) and ethylene diaziridines. Application of this reaction in the synthesis of β3 -homo-d-alloisoleucine and β3 -homo-l-isoleucine is reported.
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Affiliation(s)
- Munmun Mukherjee
- Department of Chemistry, Michigan State University, East Lansing, MI, 48824, USA
| | - Yubai Zhou
- Department of Chemistry, Michigan State University, East Lansing, MI, 48824, USA
| | - Yijing Dai
- Department of Chemistry, Michigan State University, East Lansing, MI, 48824, USA
| | - AniL K Gupta
- Department of Chemistry, Michigan State University, East Lansing, MI, 48824, USA
| | - V Reddy Pulgam
- Department of Chemistry, Michigan State University, East Lansing, MI, 48824, USA
| | - Richard J Staples
- Department of Chemistry, Michigan State University, East Lansing, MI, 48824, USA
| | - William D Wulff
- Department of Chemistry, Michigan State University, East Lansing, MI, 48824, USA
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22
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Wilkins LC, Melen RL. Enantioselective Main Group Catalysis: Modern Catalysts for Organic Transformations. Coord Chem Rev 2016. [DOI: 10.1016/j.ccr.2016.07.011] [Citation(s) in RCA: 85] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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23
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Ma C, Xing D, Hu W. Catalyst-Free Halogenation of α-Diazocarbonyl Compounds with N-Halosuccinimides: Synthesis of 3-Halooxindoles or Vinyl Halides. Org Lett 2016; 18:3134-7. [PMID: 27309726 DOI: 10.1021/acs.orglett.6b01346] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A novel catalyst-free halogenative cyclization of N-aryl diazoamides with N-halosuccinimides (NXS) is reported for the synthesis of 3-halooxindoles through a carbene-free mechanism. N-Aryl diazoamides reacted with NXS under mild and catalyst-free conditions to afford the corresponding 3-halooxindoles in good yields. This transformation is proposed to proceed through diazonium ion formation followed by intramolecular Friedel-Crafts alkylation.
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Affiliation(s)
- Chaoqun Ma
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, School of Chemistry and Molecular Engineering, East China Normal University , 3663 North Zhongshan Road, Shanghai 200062, China
| | - Dong Xing
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, School of Chemistry and Molecular Engineering, East China Normal University , 3663 North Zhongshan Road, Shanghai 200062, China
| | - Wenhao Hu
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, School of Chemistry and Molecular Engineering, East China Normal University , 3663 North Zhongshan Road, Shanghai 200062, China
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24
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Schaubach S, Gebauer K, Ungeheuer F, Hoffmeister L, Ilg MK, Wirtz C, Fürstner A. A Two-Component Alkyne Metathesis Catalyst System with an Improved Substrate Scope and Functional Group Tolerance: Development and Applications to Natural Product Synthesis. Chemistry 2016; 22:8494-507. [DOI: 10.1002/chem.201601163] [Citation(s) in RCA: 76] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2016] [Indexed: 01/02/2023]
Affiliation(s)
| | - Konrad Gebauer
- Max-Planck-Institut für Kohlenforschung; 45470 Mülheim/Ruhr Germany
| | - Felix Ungeheuer
- Max-Planck-Institut für Kohlenforschung; 45470 Mülheim/Ruhr Germany
| | | | - Marina K. Ilg
- Max-Planck-Institut für Kohlenforschung; 45470 Mülheim/Ruhr Germany
| | - Conny Wirtz
- Max-Planck-Institut für Kohlenforschung; 45470 Mülheim/Ruhr Germany
| | - Alois Fürstner
- Max-Planck-Institut für Kohlenforschung; 45470 Mülheim/Ruhr Germany
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25
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Qi C, Xiong Y, Eschenbrenner-Lux V, Cong H, Porco JA. Asymmetric Syntheses of the Flavonoid Diels-Alder Natural Products Sanggenons C and O. J Am Chem Soc 2016; 138:798-801. [PMID: 26735066 PMCID: PMC4863937 DOI: 10.1021/jacs.5b12778] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
Metal-catalyzed, double Claisen rearrangement of a bis-allyloxyflavone has been utilized to enable a concise synthesis of the hydrobenzofuro[3,2-b]chromenone core structure of the natural products sanggenon A and sanggenol F. In addition, catalytic, enantioselective [4+2] cycloadditions of 2'-hydroxychalcones have been accomplished using B(OPh)3/BINOL complexes. Asymmetric syntheses of the flavonoid Diels-Alder natural products sanggenons C and O have been achieved employing a stereodivergent reaction of a racemic mixture (stereodivergent RRM) involving [4+2] cycloaddition.
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Affiliation(s)
| | | | - Vincent Eschenbrenner-Lux
- Department of Chemistry and Center for Molecular Discovery (BU-CMD), Boston University, Boston, Massachusetts 02215, United States
| | - Huan Cong
- Department of Chemistry and Center for Molecular Discovery (BU-CMD), Boston University, Boston, Massachusetts 02215, United States
| | - John A. Porco
- Department of Chemistry and Center for Molecular Discovery (BU-CMD), Boston University, Boston, Massachusetts 02215, United States
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26
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Zhao W, Yin X, Gupta AK, Zhang X, Wulff WD. The Nature of meso- and pyro-Borate Precatalysts to the VANOL and VAPOL BOROX Catalysts. Synlett 2015. [DOI: 10.1055/s-0034-1378707] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
The structures of the meso- and pyro-borate esters generated by treatment of the VANOL and VAPOL ligands with triphenylborate have been revisited. These species were previously identified as precatalysts that could be in situ converted into VANOL and VAPOL BOROX catalysts by an imine substrate. The complete assignment of all protons for both the meso- and pyro-borate esters of both ligands was aided by the 1H NMR spectrum of each generated from pentadeuterophenol. There were significant differences between the chemical shifts for certain protons in the meso- and pyro-borate species in both the VANOL and VAPOL derivatives. Optimized structures for the meso-borates and two different isomers of the pyro-borates were determined by DFT calculations for each ligand. For each ligand the cyclic pyro-borate was found to be lower in energy than the corresponding linear pyro-borate at the
B3LYP/6-311+G(d,p) level of theory. The structures of the cyclic pyro-borate esters were more consistent with the observed 1H NMR chemical shifts than the linear pyro-borates for each ligand and thus the structures of the pyro-borates esters of VANOL and VAPOL have been re-assigned as the cyclic isomers.
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27
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Desai AA, Guan Y, Odom AL, Majumder S, Wulff WD. Self-Assembly of a Library of Polyborate Chiral Anions for Asymmetric Catalytic Quinoline Reduction. Tetrahedron Lett 2015; 56:3481-3485. [PMID: 26034335 PMCID: PMC4448761 DOI: 10.1016/j.tetlet.2015.02.063] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
The 'template' polyborate BOROX catalysts are shown to mediate the asymmetric transfer hydrogenation of 2-quinolines. The rapid and simple generation of a large family of BOROX catalysts with significantly altered asymmetric pockets is described. A transition state model that explains the enantioselectivity is proposed.
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Affiliation(s)
- Aman A. Desai
- Department of Chemistry. Michigan State University, East Lansing, Michigan 48824
| | - Yong Guan
- Department of Chemistry. Michigan State University, East Lansing, Michigan 48824
| | - Aaron L. Odom
- Department of Chemistry. Michigan State University, East Lansing, Michigan 48824
| | - Supriyo Majumder
- Department of Chemistry. Michigan State University, East Lansing, Michigan 48824
| | - William D. Wulff
- Department of Chemistry. Michigan State University, East Lansing, Michigan 48824
- Department of Chemistry, Binghamton University, Binghamton, NY 13902
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28
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Rumyantsev M, Sitnikov NS, Somov NV. Hydrogen-Bond-Assisted Organocatalytic Acetalization of Secondary Alcohols: Experimental and Theoretical Studies. J Phys Chem A 2015; 119:4108-17. [DOI: 10.1021/acs.jpca.5b02102] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Misha Rumyantsev
- Nizhny Novgorod State Technical University n.a. R.E. Alekseev, 24 minin st., Nizhny Novgorod 603950, Russia
- Lobachevsky State University of Nizhni Novgorod, 23 Prospekt Gagarina (Gagarin Avenue), Nizhny
Novgorod 603950, Russia
| | - Nikolay S. Sitnikov
- Lobachevsky State University of Nizhni Novgorod, 23 Prospekt Gagarina (Gagarin Avenue), Nizhny
Novgorod 603950, Russia
| | - Nikolay V. Somov
- Lobachevsky State University of Nizhni Novgorod, 23 Prospekt Gagarina (Gagarin Avenue), Nizhny
Novgorod 603950, Russia
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29
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Zhao W, Lu Z, Wulff WD. β-amino esters from the reductive ring opening of aziridine-2-carboxylates. J Org Chem 2014; 79:10068-80. [PMID: 25329528 PMCID: PMC4227569 DOI: 10.1021/jo501694h] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2014] [Indexed: 11/30/2022]
Abstract
A general study is undertaken to examine the scope of the reductive ring opening of aziridine-2-carboxylates with samarium diiodide. The competition between C-C and C-N bond cleavage is examined as a function of the nature of the N-substituent of the aziridine, the nature of the substituent in the 3-position of the aziridine, and whether the substituent in the 3-position is in a cis or trans relationship with the carboxylate in the 2-position. The desired C-N bond cleavage leads to β-amino esters that are the predominant products for most aziridines with an N-activating group. However, C-C cleavage products are observed with an aryl group in the 3-position; this can be particularly pronounced with cis-aziridines where a nearly equal mixture of the two is observed. Exclusive formation of the C-N cleavage product is observed for all aziridines with the strongly N-activating p-toluene sulfonate group. Similarly high selectivity is observed for the 2-trimethylsilylethyl sulfonate group (SES), which is easier to remove. The utility of these methods is illustrated in the synthesis of protected forms of (R)-β(3)-DOPA and L-DOPA from the same aziridine, the former by SmI2-mediated reductive opening at C-2 and the latter by palladium-mediated reductive opening at C-3.
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Affiliation(s)
- Wenjun Zhao
- Department of Chemistry, Michigan
State University, East Lansing, Michigan 48824, United States
| | - Zhenjie Lu
- Department of Chemistry, Michigan
State University, East Lansing, Michigan 48824, United States
| | - William D. Wulff
- Department of Chemistry, Michigan
State University, East Lansing, Michigan 48824, United States
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30
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Zhang X, Staples R, Rheingold AL, Wulff WD. Catalytic asymmetric α-Iminol rearrangement: new chiral platforms. J Am Chem Soc 2014; 136:13971-4. [PMID: 25247674 PMCID: PMC4195388 DOI: 10.1021/ja5065685] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2014] [Indexed: 11/29/2022]
Abstract
A series of 19 different asymmetric catalysts were screened in an effort to identify the first chiral catalyst for the rearrangement of α-hydroxy imines to α-amino ketones involving a 1,2-carbon shift. Although aluminate complexes of VAPOL, VANOL, and 7,7'-(t)Bu2VANOL were quite effective catalysts giving up to 88% ee, the ne plus ultra catalyst for this reaction was found to be a zirconium complex of VANOL which gives 97 to >99% ee for the majority of the substrates examined. An X-ray diffraction study of the catalyst reveals that the zirconium exists as a homoleptic complex with three VANOL ligands and two protonated N-methyl imidazoles.
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Affiliation(s)
- Xin Zhang
- Department
of Chemistry, Michigan State University, East Lansing, Michigan 48824, United States
| | - Richard
J. Staples
- Department
of Chemistry, Michigan State University, East Lansing, Michigan 48824, United States
| | - Arnold L Rheingold
- Department
of Chemistry and Biochemistry, University
of California, San Diego, La Jolla, California 92093, United States
| | - William D. Wulff
- Department
of Chemistry, Michigan State University, East Lansing, Michigan 48824, United States
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31
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Guan Y, López‐Alberca MP, Lu Z, Zhang Y, Desai AA, Patwardhan AP, Dai Y, Vetticatt MJ, Wulff WD. Catalytic Asymmetric Synthesis of Alkynyl Aziridines: Both Enantiomers of
cis
‐Aziridines from One Enantiomer of the Catalyst. Chemistry 2014; 20:13894-900. [DOI: 10.1002/chem.201404587] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2014] [Indexed: 11/12/2022]
Affiliation(s)
- Yong Guan
- Department of Chemistry, Michigan State University, East Lansing, MI 48824 (USA), Fax: (001) 517‐3353‐1793 http://www2.chemistry.msu.edu/faculty/wulff/myweb26/index.htm
| | - Maria P. López‐Alberca
- Department of Chemistry, Michigan State University, East Lansing, MI 48824 (USA), Fax: (001) 517‐3353‐1793 http://www2.chemistry.msu.edu/faculty/wulff/myweb26/index.htm
| | - Zhenjie Lu
- Department of Chemistry, Michigan State University, East Lansing, MI 48824 (USA), Fax: (001) 517‐3353‐1793 http://www2.chemistry.msu.edu/faculty/wulff/myweb26/index.htm
| | - Yu Zhang
- Department of Chemistry, Michigan State University, East Lansing, MI 48824 (USA), Fax: (001) 517‐3353‐1793 http://www2.chemistry.msu.edu/faculty/wulff/myweb26/index.htm
| | - Aman A. Desai
- Department of Chemistry, Michigan State University, East Lansing, MI 48824 (USA), Fax: (001) 517‐3353‐1793 http://www2.chemistry.msu.edu/faculty/wulff/myweb26/index.htm
| | - Aniruddha P. Patwardhan
- Department of Chemistry, Michigan State University, East Lansing, MI 48824 (USA), Fax: (001) 517‐3353‐1793 http://www2.chemistry.msu.edu/faculty/wulff/myweb26/index.htm
| | - Yijing Dai
- Department of Chemistry, Michigan State University, East Lansing, MI 48824 (USA), Fax: (001) 517‐3353‐1793 http://www2.chemistry.msu.edu/faculty/wulff/myweb26/index.htm
| | | | - William D. Wulff
- Department of Chemistry, Michigan State University, East Lansing, MI 48824 (USA), Fax: (001) 517‐3353‐1793 http://www2.chemistry.msu.edu/faculty/wulff/myweb26/index.htm
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33
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Zhao W, Huang L, Guan Y, Wulff WD. Three-Component Asymmetric Catalytic Ugi Reaction-Concinnity from Diversity by Substrate-Mediated Catalyst Assembly. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201310491] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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34
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Zhao W, Huang L, Guan Y, Wulff WD. Three-component asymmetric catalytic Ugi reaction--concinnity from diversity by substrate-mediated catalyst assembly. Angew Chem Int Ed Engl 2014; 53:3436-41. [PMID: 24554529 DOI: 10.1002/anie.201310491] [Citation(s) in RCA: 68] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2013] [Revised: 01/03/2014] [Indexed: 11/08/2022]
Abstract
The first chiral catalyst for the three-component Ugi reaction was identified as a result of a screen of a large set of different BOROX catalysts. The BOROX catalysts were assembled in situ from a chiral biaryl ligand, an amine, water, BH3·SMe2, and an alcohol or phenol. The catalyst screen included 13 different ligands, 12 amines, and 47 alcohols or phenols. The optimal catalyst system (LAP 8-5-47) provided α-amino amides from an aldehyde, a secondary amine, and an isonitrile with excellent asymmetric induction. The catalytically active species is proposed to be an ion pair that consists of the chiral boroxinate anion and an iminium cation.
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Affiliation(s)
- Wenjun Zhao
- Department of Chemistry, Michigan State University, East Lansing, MI 48824 (USA) http://www2.chemistry.msu.edu/faculty/wulff/myweb26/index.htm
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35
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Mukherjee M, Zhou Y, Gupta AK, Guan Y, Wulff WD. A General Synthesis of Sphinganines through Multicomponent Catalytic Asymmetric Aziridination. European J Org Chem 2014. [DOI: 10.1002/ejoc.201301766] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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36
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Mao H, Tang Z, Hu H, Cheng Y, Zheng WH, Zhu C. Lewis base mediated halogenation/semipinacol rearrangement of diazo compounds: new access to α-halo-quaternary ketones. Chem Commun (Camb) 2014; 50:9773-5. [DOI: 10.1039/c4cc04154b] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
A novel halogenation/semipinacol rearrangement of α-diazo alcohol catalyzed by Lewis base has been developed through a carbene-free mechanism.
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Affiliation(s)
- Haibin Mao
- School of Chemistry and Chemical Engineering
- State Key Laboratory of Coordination Chemistry
- Nanjing University
- Nanjing, P. R. China
| | - Zhongkai Tang
- School of Chemistry and Chemical Engineering
- State Key Laboratory of Coordination Chemistry
- Nanjing University
- Nanjing, P. R. China
| | - Hongwen Hu
- School of Chemistry and Chemical Engineering
- State Key Laboratory of Coordination Chemistry
- Nanjing University
- Nanjing, P. R. China
| | - Yixiang Cheng
- School of Chemistry and Chemical Engineering
- State Key Laboratory of Coordination Chemistry
- Nanjing University
- Nanjing, P. R. China
| | - Wen-Hua Zheng
- School of Chemistry and Chemical Engineering
- State Key Laboratory of Coordination Chemistry
- Nanjing University
- Nanjing, P. R. China
| | - Chengjian Zhu
- School of Chemistry and Chemical Engineering
- State Key Laboratory of Coordination Chemistry
- Nanjing University
- Nanjing, P. R. China
- State Key Laboratory of Organometallic Chemistry
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37
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Gupta AK, Zhang X, Staples RJ, Wulff WD. The iso-VAPOL ligand: synthesis, solid-state structure and its evaluation as a BOROX catalyst. Catal Sci Technol 2014. [DOI: 10.1039/c4cy00742e] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The iso-VAPOL ligand is just as effective as VAPOL in the catalytic asymmetric synthesis of aziridines at one-tenth the cost.
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Affiliation(s)
- Anil K. Gupta
- Department of Chemistry
- Michigan State University
- East Lansing, USA
| | - Xin Zhang
- Department of Chemistry
- Michigan State University
- East Lansing, USA
| | | | - William D. Wulff
- Department of Chemistry
- Michigan State University
- East Lansing, USA
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Hashimoto T, Gálvez AO, Maruoka K. In situ assembled boronate ester assisted chiral carboxylic acid catalyzed asymmetric trans-aziridinations. J Am Chem Soc 2013; 135:17667-70. [PMID: 24199743 DOI: 10.1021/ja407764u] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
We developed herein a new chiral Brønsted acid catalyst which is composed of two independent organic molecules, a chiral diol, and 2-boronobenzoic acid. In situ formation of a boronate ester was utilized as a key process to generate an active catalyst. This boronate ester assisted chiral carboxylic acid catalyst was successfully applied to the trans-aziridination of N-Boc and N-benzyl imines with N-phenyldiazoacetamide. This is the first catalyst to achieve high enantioselectivities using N-benzyl imines.
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Affiliation(s)
- Takuya Hashimoto
- Department of Chemistry, Graduate School of Science, Kyoto University , Sakyo, Kyoto 606-8502, Japan
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Guan Y, Ding Z, Wulff WD. Vaulted biaryls in catalysis: A structure-activity relationship guided tour of the immanent domain of the VANOL ligand. Chemistry 2013; 19:15565-71. [PMID: 24123264 DOI: 10.1002/chem.201302451] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2013] [Indexed: 11/06/2022]
Abstract
The active site in the BOROX catalyst is a chiral polyborate anion (boroxinate) that is assembled in situ from three equivalents of B(OPh)3 and one of the VANOL ligand by a molecule of substrate. The substrates are bound to the boroxinate by H bonds to oxygen atoms O1-O3. The effects of introducing substituents at each position of the naphthalene core of the VANOL ligand are systematically investigated in an aziridination reaction. Substituents in the 4,4'- and 8,8'-positions have a negative effect on catalyst performance, whereas, substituents in the 7- and 7'-positions have the biggest impact in a positive direction.
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Affiliation(s)
- Yong Guan
- Department of Chemistry, Michigan State University, East Lansing, MI 48824 (USA)
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41
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Bottoni A, Lombardo M, Miscione GP, Montroni E, Quintavalla A, Trombini C. Electrosteric Activation by using Ion-Tagged Prolines: A Combined Experimental and Computational Investigation. ChemCatChem 2013. [DOI: 10.1002/cctc.201300399] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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Egloff J, Ranocchiari M, Schira A, Schotes C, Mezzetti A. Highly Enantioselective Ruthenium/PNNP-Catalyzed Imine Aziridination: Evidence of Carbene Transfer from a Diazoester Complex. Organometallics 2013. [DOI: 10.1021/om400735p] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Joël Egloff
- Department of Chemistry and Applied
Biosciences, ETH Zürich, CH-8093 Zürich, Switzerland
| | - Marco Ranocchiari
- Department of Chemistry and Applied
Biosciences, ETH Zürich, CH-8093 Zürich, Switzerland
| | - Amata Schira
- Department of Chemistry and Applied
Biosciences, ETH Zürich, CH-8093 Zürich, Switzerland
| | - Christoph Schotes
- Department of Chemistry and Applied
Biosciences, ETH Zürich, CH-8093 Zürich, Switzerland
| | - Antonio Mezzetti
- Department of Chemistry and Applied
Biosciences, ETH Zürich, CH-8093 Zürich, Switzerland
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Vetticatt MJ, Desai AA, Wulff WD. Isotope effects and mechanism of the asymmetric BOROX Brønsted acid catalyzed aziridination reaction. J Org Chem 2013; 78:5142-52. [PMID: 23687986 DOI: 10.1021/jo302783d] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
The mechanism of the chiral VANOL-BOROX Brønsted acid catalyzed aziridination reaction of imines and ethyldiazoacetate has been studied using a combination of experimental kinetic isotope effects and theoretical calculations. A stepwise mechanism where reversible formation of a diazonium ion intermediate precedes rate-limiting ring closure to form the cis-aziridine is implicated. A revised model for the origin of enantio- and diastereoselectivity is proposed based on relative energies of the ring-closing transition structures.
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Affiliation(s)
- Mathew J Vetticatt
- Department of Chemistry, Michigan State University, East Lansing, Michigan 48824, United States.
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Chai Z, Bouillon JP, Cahard D. Chiral Brønsted acid-catalyzed diastereo- and enantioselective synthesis of CF3-substituted aziridines. Chem Commun (Camb) 2013; 48:9471-3. [PMID: 22899419 DOI: 10.1039/c2cc35246j] [Citation(s) in RCA: 76] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
A multicomponent organocatalyzed highly diastereo- and enantioselective synthesis of CF(3)-substituted aziridines is described. This reaction of in situ generated CF(3)CHN(2) and aldimines was realized by chiral Brønsted acid catalysis. The utility of the products is illustrated by easy access to β-CF(3) isocysteine and aziridine-containing dipeptides.
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Affiliation(s)
- Zhuo Chai
- UMR CNRS 6014 C.O.B.R.A., Université et INSA de Rouen, 1 rue Tesnière, 76821 Mont Saint Aignan, France
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Tokunaga Y. Boroxine Chemistry: From Fundamental Studies to Applications in Supramolecular and Synthetic Organic Chemistry. HETEROCYCLES 2013. [DOI: 10.3987/rev-13-767] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Liu G, Zhang D, Li J, Xu G, Sun J. A highly enantioselective Darzens reaction between diazoacetamides and aldehydes catalyzed by a (+)-pinanediol–Ti(OiPr)4 system. Org Biomol Chem 2013; 11:900-4. [DOI: 10.1039/c2ob27179f] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Ren H, Wulff WD. Total synthesis of sedum alkaloids via catalyst controlled aza-Cope rearrangement and hydroformylation with formaldehyde. Org Lett 2012; 15:242-5. [PMID: 23259754 DOI: 10.1021/ol302769r] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The catalytic asymmetric aminoallylation of chiral aldehydes is developed as a new method for the catalyst controlled synthesis of syn- and anti-1,3-aminoalcohols. This methodology is highlighted in the synthesis of the sedum alkaloids (+)-sedridine and (+)-allosedridine both of which have their final carbon incorporated during closure of the piperidine ring via a hydroformylation with formaldehyde.
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Affiliation(s)
- Hong Ren
- Department of Chemistry, Michigan State University, East Lansing, Michigan 48824, USA
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Gupta AK, Mukherjee M, Hu G, Wulff WD. BOROX catalysis: self-assembled amino-BOROX and imino-BOROX chiral Brønsted acids in a five component catalyst assembly/catalytic asymmetric aziridination. J Org Chem 2012; 77:7932-44. [PMID: 22947019 DOI: 10.1021/jo301064u] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A five-component catalyst assembly/aziridination reaction is described starting from an aldehyde, an amine, ethyl diazoacetate, B(OPh)(3), and a molecule of a vaulted biaryl ligand (VAPOL or VANOL). A remarkable level of chemo-selectivity was observed since, while 10 different products could have resulted from various reactions between the five components, an aziridine was formed in 85% yield and 98% ee and only two other products could be detected in 3% yield. Studies reveal that the first in a sequence of three reactions is an exceedingly rapid amine-induced assembly of an amino-BOROX chiral Brønsted acid species from VAPOL and B(OPh)(3), which is followed by imine formation from the amine and aldehyde and the concomitant formation of an imino-BOROX chiral Brønsted acid and finally the reaction of the imine with ethyl diazoacetate mediated by the imino-BOROX catalyst to give aziridine-2-carboxylic esters with very high diastereo- and enantioselectivity.
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Affiliation(s)
- Anil K Gupta
- Department of Chemistry, Michigan State University, East Lansing, Michigan 48824, USA
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Sephton SM, Wang C, Zakharov LN, Blakemore PR. Silylcyanation of Aldehydes, Ketones, and Imines Catalyzed by a 6,6′-Bis-sulfonamide Derivative of 7,7′-Dihydroxy-8,8′-biquinolyl (azaBINOL). European J Org Chem 2012. [DOI: 10.1002/ejoc.201200333] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Huang L, Zhang Y, Staples RJ, Huang RH, Wulff WD. Double Stereodifferentiation in the Catalytic Asymmetric Aziridination of Imines Prepared from α-Chiral Amines. Chemistry 2012; 18:5302-13. [PMID: 22434622 DOI: 10.1002/chem.201102520] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2011] [Indexed: 11/10/2022]
Affiliation(s)
- Li Huang
- Department of Chemistry, Michigan State University, East Lansing, MI 48824, USA
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