1
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Gharpure SJ, Pal J, Pansuriya KC. Leveraging Alkyne-Oximium Cyclization for the Stereoselective Synthesis of Isoxazolidine. Org Lett 2022; 24:8769-8773. [PMID: 36441517 DOI: 10.1021/acs.orglett.2c03483] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A TMSOTf-mediated highly diastereoselective synthesis of isoxazolidine bearing three contiguous stereocenters is described. This method utilizes O-propargyl hydroxylamines as a novel building block for the rapid assembly of the isoxazolidines via alkyne-oximium cyclization. The strategy could be used in the synthesis of enantiomerically enriched isoxazolidines. Reductive cleavage of the N-O bond efficiently gives the corresponding 1,3-aminodiols with precise control over all stereocenters formed.
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Affiliation(s)
- Santosh J Gharpure
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai-400076, India
| | - Juhi Pal
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai-400076, India
| | - Kaushik C Pansuriya
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai-400076, India
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2
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Nakamura I, Terada M. Gold-Catalyzed Skeletal Rearrangement Reactions of O-Propargylic and O-Homopropargylic Oximes. HETEROCYCLES 2022. [DOI: 10.3987/rev-22-984] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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3
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Tashiro H, Terada M, Nakamura I. Consecutive O-S/N-S Bond Cleavage in Gold-Catalyzed Rearrangement Reactions of Alkynyl N-Sulfinylimines. Angew Chem Int Ed Engl 2021; 60:12248-12252. [PMID: 33590966 DOI: 10.1002/anie.202100207] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2021] [Indexed: 12/16/2022]
Abstract
Gold-catalyzed reactions of alkynyl N-sulfinylimines were used to produce the corresponding 2H-azirines possessing sulfenyl and acyl groups at the 3-position of the azirine ring in good to excellent yields. These reactions involved internal transfer of the sulfinyl oxygen atom to form a thiooxime intermediate tethered to an α-oxo gold carbene moiety. Subsequent insertion of the carbene into the N-S bond resulted in ring construction.
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Affiliation(s)
- Hiroki Tashiro
- Department of Chemistry, Graduate School of Science, Tohoku University, 6-3 Aramaki Aza Aoba, Aoba-ku, Sendai, 980-8578, Japan
| | - Masahiro Terada
- Department of Chemistry, Graduate School of Science, Tohoku University, 6-3 Aramaki Aza Aoba, Aoba-ku, Sendai, 980-8578, Japan
| | - Itaru Nakamura
- Research and Analytical Center for Giant Molecules, Graduate School of Science, Tohoku University, 6-3 Aramaki Aza Aoba, Aoba-ku, Sendai, 980-8578, Japan
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4
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Nikbakht A, Amiri K, Khosravi H, Zhou Y, Balalaie S, Breit B. Copper-Catalyzed Cycloisomerization of Unactivated Allene-Tethered O-Propargyl Oximes: A Domino Reaction Sequence toward the Synthesis of Hexahydropyrrolo[3,4- b]azepin-5(4 H)-ones. Org Lett 2021; 23:3343-3348. [PMID: 33843238 DOI: 10.1021/acs.orglett.1c00837] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A novel copper-catalyzed cycloisomerization of unactivated allene-tethered O-propargyl oximes has been developed for the synthesis of hexahydropyrrolo[3,4-b]azepin-5(4H)-ones. This one-pot domino reaction proceeds via a [2,3]-sigmatropic rearrangement, a [3 + 2] cycloaddition, and another [3,3]-sigmatropic rearrangement. The methodology offers a practical and straightforward route for the rapid assembly of both ring components of the fused bicyclic motifs from acyclic precursors by simultaneously forming four new bonds (a C═O, a C═N, and two C-C bonds) in a single step.
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Affiliation(s)
- Ali Nikbakht
- Institut fur Organische Chemie, Albert-Ludwigs-Universitat Freiburg Albertstrasse 21, 79104 Freiburg im Breisgau, Germany.,Peptide Chemistry Research Center, K. N. Toosi University of Technology, Tehran 15875-4416, Iran
| | - Kamran Amiri
- Institut fur Organische Chemie, Albert-Ludwigs-Universitat Freiburg Albertstrasse 21, 79104 Freiburg im Breisgau, Germany.,Peptide Chemistry Research Center, K. N. Toosi University of Technology, Tehran 15875-4416, Iran
| | - Hormoz Khosravi
- Institut fur Organische Chemie, Albert-Ludwigs-Universitat Freiburg Albertstrasse 21, 79104 Freiburg im Breisgau, Germany.,Peptide Chemistry Research Center, K. N. Toosi University of Technology, Tehran 15875-4416, Iran
| | - Yirong Zhou
- Institut fur Organische Chemie, Albert-Ludwigs-Universitat Freiburg Albertstrasse 21, 79104 Freiburg im Breisgau, Germany
| | - Saeed Balalaie
- Peptide Chemistry Research Center, K. N. Toosi University of Technology, Tehran 15875-4416, Iran.,Medical Biology Research Center, Kermanshah University of Medical Sciences, Kermanshah 6714415185, Iran
| | - Bernhard Breit
- Institut fur Organische Chemie, Albert-Ludwigs-Universitat Freiburg Albertstrasse 21, 79104 Freiburg im Breisgau, Germany
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5
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Tashiro H, Terada M, Nakamura I. Consecutive O−S/N−S Bond Cleavage in Gold‐Catalyzed Rearrangement Reactions of Alkynyl
N
‐Sulfinylimines. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202100207] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Hiroki Tashiro
- Department of Chemistry Graduate School of Science Tohoku University 6-3 Aramaki Aza Aoba, Aoba-ku Sendai 980-8578 Japan
| | - Masahiro Terada
- Department of Chemistry Graduate School of Science Tohoku University 6-3 Aramaki Aza Aoba, Aoba-ku Sendai 980-8578 Japan
| | - Itaru Nakamura
- Research and Analytical Center for Giant Molecules Graduate School of Science Tohoku University 6-3 Aramaki Aza Aoba, Aoba-ku Sendai 980-8578 Japan
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6
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Chintawar CC, Yadav AK, Kumar A, Sancheti SP, Patil NT. Divergent Gold Catalysis: Unlocking Molecular Diversity through Catalyst Control. Chem Rev 2021; 121:8478-8558. [PMID: 33555193 DOI: 10.1021/acs.chemrev.0c00903] [Citation(s) in RCA: 140] [Impact Index Per Article: 46.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
The catalyst-directed divergent synthesis, commonly termed as "divergent catalysis", has emerged as a promising technique as it allows chartering of structurally distinct products from common substrates simply by modulating the catalyst system. In this regard, gold complexes emerged as powerful catalysts as they offer unique reactivity profiles as compared to various other transition metal catalysts, primarily due to their salient electronic and geometrical features. Owing to the tunable soft π-acidic nature, gold catalysts not only evolved as superior contenders for catalyzing the reactions of alkynes, alkenes, and allenes but also, more intriguingly, have been found to provide divergent reaction pathways over other π-acid catalysts such as Ag, Pt, Pd, Rh, Cu, In, Sc, Hg, Zn, etc. The recent past has witnessed a renaissance in such examples wherein, by choosing gold catalysts over other transition metal catalysts or by fine-tuning the ligands, counteranions or oxidation states of the gold catalyst itself, a complete reactivity switch was observed. However, reviews documenting such examples are sporadic; as a result, most of the reports of this kind remained scattered in the literature, thereby hampering further development of this burgeoning field. By conceptualizing the idea of "Divergent Gold Catalysis (DGC)", this review aims to consolidate all such reports and provide a unified approach necessary to pave the way for further advancement of this exciting area. Based on the factors governing the divergence in product formation, an explicit classification of DGC has been provided. To gain a fundamental understanding of the divergence in observed reactivities and selectivities, the review is accompanied by mechanistic insights at appropriate places.
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Affiliation(s)
- Chetan C Chintawar
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhauri, Bhopal 462 066, India
| | - Amit K Yadav
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhauri, Bhopal 462 066, India
| | - Anil Kumar
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhauri, Bhopal 462 066, India
| | - Shashank P Sancheti
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhauri, Bhopal 462 066, India
| | - Nitin T Patil
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhauri, Bhopal 462 066, India
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7
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Nakamura I, Hirayama A, Gima S, Terada M. Exo-Cyclization: Intermolecular Methylene Transfer Sequence in Au-Catalyzed Reactions of O-Homopropargylic Oximes. Chemistry 2020; 26:15816-15820. [PMID: 32618375 DOI: 10.1002/chem.202002764] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2020] [Indexed: 02/02/2023]
Abstract
The Au-catalyzed reactions of O-homopropaylic oximes afforded the 3-alkenylated isoxazolines in good to high yields. The mechanistic studies suggest that the reaction proceeds through an exo-cyclization followed by intermolecular methylene group transfer. In addition, oligomeric species of the starting material were observed in the reaction mixture by mass spectra, supporting our proposed mechanism, which proceeds through a repeated intermolecular C-C bond forming process.
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Affiliation(s)
- Itaru Nakamura
- Research and Analytical Center for Giant Molecules, Graduate School of Science, Tohoku University, 6-3 Aramaki Aza Aoba, Aoba-ku, Sendai, 9808578, Japan
| | - Arinobu Hirayama
- Department of Chemistry, Graduate School of Science, Tohoku University, 6-3 Aramaki Aza Aoba, Aoba-ku, Sendai, 9808578, Japan
| | - Shinya Gima
- Department of Chemistry, Graduate School of Science, Tohoku University, 6-3 Aramaki Aza Aoba, Aoba-ku, Sendai, 9808578, Japan
| | - Masahiro Terada
- Department of Chemistry, Graduate School of Science, Tohoku University, 6-3 Aramaki Aza Aoba, Aoba-ku, Sendai, 9808578, Japan
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8
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Ge J, Ding Q, Long X, Liu X, Peng Y. Copper(II)-Catalyzed Domino Synthesis of 4-Benzenesulfonyl Isoxazoles from 2-Nitro-1,3-enynes, Amines, and Sodium Benzenesulfinate. J Org Chem 2020; 85:13886-13894. [PMID: 33084339 DOI: 10.1021/acs.joc.0c01964] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
A simple and effective method for the synthesis of fully substituted 4-benzenesulfonyl isoxazoles through a copper(II)-catalyzed three-component reaction of 2-nitro-1,3-enynes, amines, and sodium benzenesulfinate is described. The reaction proceeds smoothly under mild conditions and provides the benzenesulfonyl isoxazoles with high chemoselectivity.
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Affiliation(s)
- Junying Ge
- Key Laboratory of Functional Small Organic Molecules, Ministry of Education, Jiangxi Key Laboratory of Green Chemistry, and College of Chemistry & Chemical Engineering, Jiangxi Normal University, Nanchang, Jiangxi 330022, China.,Institute of Coordination Catalysis, Engineering Center of Jiangxi, University for Lithium Energy and Key Laboratory of Jiangxi University for Applied Chemistry and Chemical Biology, Yichun University, Yichun, Jiangxi 336000, China
| | - Qiuping Ding
- Key Laboratory of Functional Small Organic Molecules, Ministry of Education, Jiangxi Key Laboratory of Green Chemistry, and College of Chemistry & Chemical Engineering, Jiangxi Normal University, Nanchang, Jiangxi 330022, China
| | - Xujing Long
- Key Laboratory of Functional Small Organic Molecules, Ministry of Education, Jiangxi Key Laboratory of Green Chemistry, and College of Chemistry & Chemical Engineering, Jiangxi Normal University, Nanchang, Jiangxi 330022, China
| | - Xuan Liu
- Key Laboratory of Functional Small Organic Molecules, Ministry of Education, Jiangxi Key Laboratory of Green Chemistry, and College of Chemistry & Chemical Engineering, Jiangxi Normal University, Nanchang, Jiangxi 330022, China
| | - Yiyuan Peng
- Key Laboratory of Functional Small Organic Molecules, Ministry of Education, Jiangxi Key Laboratory of Green Chemistry, and College of Chemistry & Chemical Engineering, Jiangxi Normal University, Nanchang, Jiangxi 330022, China
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9
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Nakamura I, Terada M. π-Lewis Acidic Metal-Catalyzed Skeletal Rearrangement Reactions of <i>O</i>-Propargylic Oximes. J SYN ORG CHEM JPN 2019. [DOI: 10.5059/yukigoseikyokaishi.77.971] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Itaru Nakamura
- Research and Analytical Center for Giant Molecules, Graduate School of Science, Tohoku University
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10
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Fu M, Li H, Su M, Cao Z, Liu Y, Liu Q, Guo C. Synthesis of 3‐Nitroisoxazoles via Copper Acetate‐Mediated Reaction of Benzaldehydes with Nitromethane. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201900323] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Meiqiang Fu
- College of Chemistry and Chemical Engineering, Advanced Catalytic Engineering Research Center of the Ministry of EducationHunan University Changsha 410082 People's Republic of China
| | - Hui Li
- College of Chemistry and Chemical Engineering, Advanced Catalytic Engineering Research Center of the Ministry of EducationHunan University Changsha 410082 People's Republic of China
| | - Miaodong Su
- College of Chemistry and Chemical Engineering, Advanced Catalytic Engineering Research Center of the Ministry of EducationHunan University Changsha 410082 People's Republic of China
| | - Zhongzhong Cao
- College of Chemistry and Chemical Engineering, Advanced Catalytic Engineering Research Center of the Ministry of EducationHunan University Changsha 410082 People's Republic of China
| | - Yufeng Liu
- College of Chemistry and Chemical Engineering, Advanced Catalytic Engineering Research Center of the Ministry of EducationHunan University Changsha 410082 People's Republic of China
| | - Qiang Liu
- College of Chemistry and Chemical Engineering, Advanced Catalytic Engineering Research Center of the Ministry of EducationHunan University Changsha 410082 People's Republic of China
| | - Cancheng Guo
- College of Chemistry and Chemical Engineering, Advanced Catalytic Engineering Research Center of the Ministry of EducationHunan University Changsha 410082 People's Republic of China
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11
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Shiga K, Gridnev ID, Terada M, Nakamura I. Au-catalyzed skeletal rearrangement of O-propargylic oximes via N-O bond cleavage with the aid of a Brønsted base cocatalyst. Chem Sci 2019; 10:5283-5289. [PMID: 31191884 PMCID: PMC6540908 DOI: 10.1039/c9sc00501c] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2019] [Accepted: 04/16/2019] [Indexed: 12/24/2022] Open
Abstract
Au-catalyzed skeletal rearrangement reaction of O-propargylic oxime proceeded via N–O bond cleavage with the aid of a Brønsted base cocatalyst.
O-Propargylic oximes that possess an electron-withdrawing aryl group on the oxime moiety undergo Au-catalyzed skeletal rearrangements via N–O bond cleavage to afford the corresponding 2H-1,3-oxazine derivatives. Our studies show that the inclusion of a Brønsted base cocatalyst not only accelerates the reaction but also switches pathways of the skeletal rearrangement reaction, realizing divergent synthesis of heterocyclic compounds. Computational studies indicate that the elimination of propargylic proton in the cyclized vinylgold intermediate is rate-determining and both electron-withdrawing substituents at the oxime moiety and base cocatalyst facilitate the proton elimination. Moreover, the protodeauration process proceeds stepwise involving N–O bond cleavage followed by recyclization to construct the oxazine core.
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Affiliation(s)
- Keigo Shiga
- Department of Chemistry , Graduate School of Science , Tohoku University , Sendai , 980-8578 , Japan
| | - Ilya D Gridnev
- Department of Chemistry , Graduate School of Science , Tohoku University , Sendai , 980-8578 , Japan
| | - Masahiro Terada
- Department of Chemistry , Graduate School of Science , Tohoku University , Sendai , 980-8578 , Japan
| | - Itaru Nakamura
- Research and Analytical Center for Giant Molecules , Graduate School of Science , Tohoku University , Sendai , 980-8578 , Japan .
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12
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Nakamura I, Terada M. Recent progress on catalytic [1,3]-oxygen rearrangement reactions from nitrogen to carbon atoms. Tetrahedron Lett 2019. [DOI: 10.1016/j.tetlet.2019.01.057] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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13
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Morita T, Yugandar S, Fuse S, Nakamura H. Recent progresses in the synthesis of functionalized isoxazoles. Tetrahedron Lett 2018. [DOI: 10.1016/j.tetlet.2018.02.020] [Citation(s) in RCA: 58] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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14
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Kong XF, Zhan F, He GX, Pan CX, Gu CX, Lu K, Mo DL, Su GF. Gold-Catalyzed Selective 6-exo-dig and 7-endo-dig Cyclizations of Alkyn-Tethered Indoles To Prepare Rutaecarpine Derivatives. J Org Chem 2018; 83:2006-2017. [DOI: 10.1021/acs.joc.7b02956] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Xiang-Fei Kong
- State
Key Laboratory for Chemistry and Molecular Engineering of Medicinal
Resources, Ministry of Science and Technology of China, School of
Chemistry and Pharmaceutical Sciences, Guangxi Normal University, 15 Yu Cai Road, Guilin 541004, China
- College
of Chemistry and Bioengineering, Guilin University of Technology, 12 Jian Gan Road, Guilin 541004, China
| | - Feng Zhan
- State
Key Laboratory for Chemistry and Molecular Engineering of Medicinal
Resources, Ministry of Science and Technology of China, School of
Chemistry and Pharmaceutical Sciences, Guangxi Normal University, 15 Yu Cai Road, Guilin 541004, China
| | - Guo-Xue He
- State
Key Laboratory for Chemistry and Molecular Engineering of Medicinal
Resources, Ministry of Science and Technology of China, School of
Chemistry and Pharmaceutical Sciences, Guangxi Normal University, 15 Yu Cai Road, Guilin 541004, China
| | - Cheng-Xue Pan
- State
Key Laboratory for Chemistry and Molecular Engineering of Medicinal
Resources, Ministry of Science and Technology of China, School of
Chemistry and Pharmaceutical Sciences, Guangxi Normal University, 15 Yu Cai Road, Guilin 541004, China
| | - Chen-Xi Gu
- State
Key Laboratory for Chemistry and Molecular Engineering of Medicinal
Resources, Ministry of Science and Technology of China, School of
Chemistry and Pharmaceutical Sciences, Guangxi Normal University, 15 Yu Cai Road, Guilin 541004, China
| | - Ke Lu
- State
Key Laboratory for Chemistry and Molecular Engineering of Medicinal
Resources, Ministry of Science and Technology of China, School of
Chemistry and Pharmaceutical Sciences, Guangxi Normal University, 15 Yu Cai Road, Guilin 541004, China
| | - Dong-Liang Mo
- State
Key Laboratory for Chemistry and Molecular Engineering of Medicinal
Resources, Ministry of Science and Technology of China, School of
Chemistry and Pharmaceutical Sciences, Guangxi Normal University, 15 Yu Cai Road, Guilin 541004, China
| | - Gui-Fa Su
- State
Key Laboratory for Chemistry and Molecular Engineering of Medicinal
Resources, Ministry of Science and Technology of China, School of
Chemistry and Pharmaceutical Sciences, Guangxi Normal University, 15 Yu Cai Road, Guilin 541004, China
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15
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Gima S, Nakamura I, Terada M. Efficient Synthesis of Enantioenriched Isoxazoles by Chirality Transfer in Gold-Catalyzed Cyclization/Methylene-Group Transfer Followed by Carbonyl Ene Reaction. European J Org Chem 2017. [DOI: 10.1002/ejoc.201700708] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Shinya Gima
- Department of Chemistry; Graduate School of Science; Tohoku University; 6-3 Aramaki Aza Aoba, Aoba-ku 980-8578 Sendai Japan
| | - Itaru Nakamura
- Research and Analytical Center for Giant Molecules; Graduate School of Science; Tohoku University; 6-3 Aramaki Aza Aoba, Aoba-ku 980-8578 Sendai Japan
| | - Masahiro Terada
- Department of Chemistry; Graduate School of Science; Tohoku University; 6-3 Aramaki Aza Aoba, Aoba-ku 980-8578 Sendai Japan
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16
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Peng S, Cao S, Sun J. Gold-Catalyzed Regiodivergent [2 + 2 + 2]-Cycloadditions of Allenes with Triazines. Org Lett 2017; 19:524-527. [PMID: 28079381 DOI: 10.1021/acs.orglett.6b03691] [Citation(s) in RCA: 61] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Gold-catalyzed regiodivergent cycloadditions of functionalized allenes with 1,3,5-triazines, providing diverse N-heterocycles in moderate to excellent yields under mild reaction conditions, are reported. Importantly, different types of allenes exhibit distinct selectivity and reactivity for the reactions. Mechanistic investigations reveal that all of the cycloadditions proceed through a stepwise [2 + 2 + 2]-cycloaddition process.
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Affiliation(s)
- Shiyong Peng
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology and School of Pharmaceutical Engineering & Life Science, Changzhou University , Changzhou 213164, P. R. China
| | - Shengyu Cao
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology and School of Pharmaceutical Engineering & Life Science, Changzhou University , Changzhou 213164, P. R. China
| | - Jiangtao Sun
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology and School of Pharmaceutical Engineering & Life Science, Changzhou University , Changzhou 213164, P. R. China
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17
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The chemistry of the carbon-transition metal double and triple bond: Annual survey covering the year 2015. Coord Chem Rev 2016. [DOI: 10.1016/j.ccr.2016.08.007] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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18
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Matsuda T, Matsuda Y. Rhodium-Catalyzed Cycloisomerization of 2-Alkynyl-N′-arylidenebenzohydrazides throughexo-Carboamination. ASIAN J ORG CHEM 2016. [DOI: 10.1002/ajoc.201600155] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Takanori Matsuda
- Department of Applied Chemistry; Tokyo University of Science; 1-3 Kagurazaka, Shinjuku-ku Tokyo 162-8601 Japan
| | - Yoshiya Matsuda
- Department of Applied Chemistry; Tokyo University of Science; 1-3 Kagurazaka, Shinjuku-ku Tokyo 162-8601 Japan
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19
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Ho HE, Oniwa K, Yamamoto Y, Jin T. N-Methyl Transfer Induced Copper-Mediated Oxidative Diamination of Alkynes. Org Lett 2016; 18:2487-90. [PMID: 27153403 DOI: 10.1021/acs.orglett.6b01067] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
A novel intramolecular oxidative diamination of bis(2-aminophenyl)acetylene for the synthesis of the structurally intriguing π-conjugated polyheterocyclic scaffold, 5,10-dihydroindolo[3,2-b]indole (DHII), has been developed under Cu(hfacac)2/O2 oxidation systems. The structure design of bis(2-aminophenyl)acetylene bearing both N,N-dimethylamine and primary amine groups is crucial for constructing the corresponding DHII scaffold. Notably, an intermolecular N-methyl transfer from the nitrogen atom of N,N-dimethylamine to the primary amine takes place, which is a critical step for the successful implementation of the present annulation process.
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Affiliation(s)
- Hon Eong Ho
- WPI-Advanced Institute for Materials Research (WPI-AIMR), Tohoku University , Sendai, 980-8577, Japan
| | - Kazuaki Oniwa
- WPI-Advanced Institute for Materials Research (WPI-AIMR), Tohoku University , Sendai, 980-8577, Japan
| | - Yoshinori Yamamoto
- WPI-Advanced Institute for Materials Research (WPI-AIMR), Tohoku University , Sendai, 980-8577, Japan.,State Key Laboratory of Fine Chemicals, Dalian University of Technology , Dalian, 116012, China
| | - Tienan Jin
- WPI-Advanced Institute for Materials Research (WPI-AIMR), Tohoku University , Sendai, 980-8577, Japan
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20
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Gao YN, Shi FC, Xu Q, Shi M. Enantioselective Synthesis of Isoquinolines: Merging Chiral-Phosphine and Gold Catalysis. Chemistry 2016; 22:6803-7. [DOI: 10.1002/chem.201601129] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2016] [Indexed: 11/05/2022]
Affiliation(s)
- Yu-Ning Gao
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals; East China University of Science and Technology; Meilong Road No. 130 Shanghai 200237 P. R. China
| | - Feng-Chen Shi
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals; East China University of Science and Technology; Meilong Road No. 130 Shanghai 200237 P. R. China
| | - Qin Xu
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals; East China University of Science and Technology; Meilong Road No. 130 Shanghai 200237 P. R. China
| | - Min Shi
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals; East China University of Science and Technology; Meilong Road No. 130 Shanghai 200237 P. R. China
- State Key Laboratory of Organometallic Chemistry; Shanghai Institute of Organic Chemistry; Chinese Academy of Sciences; 345 Lingling Road Shanghai 200032 P. R. China
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21
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Trofimov BA, Andriyankova LV, Nikitina LP, Belyaeva KV, Mal'kina AG, Bagryanskaya IY, Afonin AV, Ushakov IA. (Imidazol-2-yl)methyl-1,3-propanediones: Regioselective C-H Functionalization of the Imidazole Ring by Acylacetylene/Aldehyde Pairs. European J Org Chem 2016. [DOI: 10.1002/ejoc.201501617] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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22
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Cao G, Wang Y, Cui T, Huang L, Teng D. Synthesis of 3,4,5-trisubstituted isoxazoles via 1,3-dipolar cycloaddition/SO2 extrusion of benzoisothiazole-2,2-dioxide-3-ylidenes with nitrile oxides. RSC Adv 2016. [DOI: 10.1039/c5ra26718h] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
An straightforward synthesis of 3,4,5-trisubstituted isoxazole derivatives via 1,3-dipolar cycloaddtion/SO2 extrusion of benzoisothiazole-2,2-dioxide-3-ylidenes with nitrile oxides is reported using 4 Å molecular sieves as dehydrochlorinating agent.
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Affiliation(s)
- Guorui Cao
- College of Chemical Engineering
- Qingdao University of Science and Technology
- Qingdao 266042
- China
| | - Yu Wang
- College of Chemical Engineering
- Qingdao University of Science and Technology
- Qingdao 266042
- China
| | - Tao Cui
- College of Chemical Engineering
- Qingdao University of Science and Technology
- Qingdao 266042
- China
| | - Longjiang Huang
- College of Chemical Engineering
- Qingdao University of Science and Technology
- Qingdao 266042
- China
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines
| | - Dawei Teng
- College of Chemical Engineering
- Qingdao University of Science and Technology
- Qingdao 266042
- China
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23
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Debrouwer W, Heugebaert TSA, Roman BI, Stevens CV. Homogeneous Gold-Catalyzed Cyclization Reactions of Alkynes withN- andS-Nucleophiles. Adv Synth Catal 2015. [DOI: 10.1002/adsc.201500520] [Citation(s) in RCA: 56] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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24
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Urbanaitė A, Jonušis M, Bukšnaitienė R, Balkaitis S, Čikotienė I. Electrophile-Mediated Reactions of Functionalized Propargylic Substrates. European J Org Chem 2015. [DOI: 10.1002/ejoc.201501063] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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25
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Dighe SU, Mukhopadhyay S, Kolle S, Kanojiya S, Batra S. Synthesis of 3,4,5-Trisubstituted Isoxazoles from Morita-Baylis-Hillman Acetates by an NaNO2 /I2 -Mediated Domino Reaction. Angew Chem Int Ed Engl 2015. [PMID: 26215456 DOI: 10.1002/anie.201504529] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
An efficient NaNO2 /I2 -mediated one-pot transformation of Morita-Baylis-Hillman (MBH) acetates into alkyl 3-nitro-5-(aryl/alkyl)isoxazole-4-carboxylates is described. In a cascade event, initial Michael addition of NaNO2 to the MBH acetate furnishes the allylnitro intermediate which undergoes I2 -catalyzed oxidative α-CH nitration of the nitromethyl subunit followed by [3+2] cycloaddition to afford the title compounds. Structural elaborations of these highly substituted isoxazoles by SN Ar reactions and hydrogenolysis allows access to useful products.
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Affiliation(s)
- Shashikant U Dighe
- Medicinal and Process Chemistry Division, CSIR-Central Drug Research Institute, Sector 10, Jankipuram Extension, Sitapur Road, Lucknow 226031 (India)
| | - Sushobhan Mukhopadhyay
- Medicinal and Process Chemistry Division, CSIR-Central Drug Research Institute, Sector 10, Jankipuram Extension, Sitapur Road, Lucknow 226031 (India)
| | - Shivalinga Kolle
- Medicinal and Process Chemistry Division, CSIR-Central Drug Research Institute, Sector 10, Jankipuram Extension, Sitapur Road, Lucknow 226031 (India)
| | - Sanjeev Kanojiya
- Sophisticated Analytical Instrumentation Facility, CSIR, Central Drug Research Institute (India).,Academy of Scientific and Innovative Research, New Delhi (India)
| | - Sanjay Batra
- Medicinal and Process Chemistry Division, CSIR-Central Drug Research Institute, Sector 10, Jankipuram Extension, Sitapur Road, Lucknow 226031 (India). , .,Academy of Scientific and Innovative Research, New Delhi (India). ,
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26
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Ding ZC, Tang HT, Li RH, Ju LC, Zhan ZP. Synthesis of 4-Arylidenepyrazolones by a Gold-Catalyzed Cyclization/Arylidene Group Transfer Cascade of N-Propioloyl Hydrazones. J Org Chem 2015; 80:9307-13. [DOI: 10.1021/acs.joc.5b01366] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Zong-Cang Ding
- Department of Chemistry,
College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, Fujian, P. R. China
| | - Hai-Tao Tang
- Department of Chemistry,
College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, Fujian, P. R. China
| | - Ren-Hao Li
- Department of Chemistry,
College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, Fujian, P. R. China
| | - Lu-Chuan Ju
- Department of Chemistry,
College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, Fujian, P. R. China
| | - Zhuang-Ping Zhan
- Department of Chemistry,
College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, Fujian, P. R. China
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27
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Dighe SU, Mukhopadhyay S, Kolle S, Kanojiya S, Batra S. Synthesis of 3,4,5-Trisubstituted Isoxazoles from Morita-Baylis-Hillman Acetates by an NaNO2/I2-Mediated Domino Reaction. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201504529] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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