1
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Ren H, Ma M, Huang Y. Progress in Synthesis of Nitrogen Heterocycles Catalyzed by Chiral Phosphine. CHINESE J ORG CHEM 2022. [DOI: 10.6023/cjoc202208024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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2
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Parida C, Mondal B, Ghosh A, Pan SC. Organocatalytic Asymmetric Synthesis of Spirooxindole Embedded Oxazolidines. J Org Chem 2021; 86:13082-13091. [PMID: 34448585 DOI: 10.1021/acs.joc.1c00644] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
The first organocatalytic asymmetric synthesis of spirooxindole embedded oxazolidines has been developed via a domino reaction involving hemiaminal formation, followed by an unprecedented aza-Michael reaction between isatin derived N-Boc ketimines and γ-hydroxy enones. A quinine derived bifunctional squaramide catalyst was found to be efficient for this reaction, and the products were obtained in good diastereoselectivity and with high enantioselectivity.
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Affiliation(s)
- Chandrakanta Parida
- Department of Chemistry, Indian Institute of Technology Guwahati, North Guwahati, Assam 781039, India
| | - Buddhadeb Mondal
- Department of Chemistry, Indian Institute of Technology Guwahati, North Guwahati, Assam 781039, India
| | - Animesh Ghosh
- Department of Chemistry, Indian Institute of Technology Guwahati, North Guwahati, Assam 781039, India
| | - Subhas Chandra Pan
- Department of Chemistry, Indian Institute of Technology Guwahati, North Guwahati, Assam 781039, India
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3
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Tang X, Ni H, Lu Y. Phosphine-catalyzed enantioselective [4 + 1] annulation of oxindoles with allenic ketones for the construction of spirocyclopentene oxindoles. Org Chem Front 2021. [DOI: 10.1039/d1qo00669j] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
A phosphine-catalyzed enantioselective [4 + 1] annulation between allenic ketones and oxindoles has been developed.
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Affiliation(s)
- Xiaodong Tang
- Department of Chemistry
- National University of Singapore
- Singapore
- National University of Singapore (Suzhou) Research Institute
- Suzhou
| | - Huanzhen Ni
- Department of Chemistry
- National University of Singapore
- Singapore
| | - Yixin Lu
- Department of Chemistry
- National University of Singapore
- Singapore
- National University of Singapore (Suzhou) Research Institute
- Suzhou
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4
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Huang Y, Liao J, Wang W, Liu H, Guo H. Synthesis of heterocyclic compounds through nucleophilic phosphine catalysis. Chem Commun (Camb) 2020; 56:15235-15281. [PMID: 33320123 DOI: 10.1039/d0cc05699e] [Citation(s) in RCA: 52] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Nucleophilic phosphine catalysis is a practical and powerful tool for the synthesis of various heterocyclic compounds with the advantages of environmentally friendly, metal-free, and mild reaction conditions. The present report summarizes the construction of four to eight-membered heterocyclic compounds containing nitrogen, oxygen and sulphur atoms through phosphine-catalyzed intramolecular annulations and intermolecular [2+2], [3+2], [4+1], [3+1+1], [5+1], [4+2], [2+2+2], [3+3], [4+3] and [3+2+3] annulations of electron-deficient alkenes, allenes, alkynes and Morita-Baylis-Hillman carbonates.
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Affiliation(s)
- Yifan Huang
- Department of Chemistry and Innovation Center of Pesticide Research, China Agricultural University, Beijing 100193, China.
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5
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Blank BR, Andrews IP, Kwon O. Phosphine-Catalyzed (4+1) Annulation: Rearrangement of Allenylic Carbamates to 3-Pyrrolines through Phosphonium Diene Intermediates. ChemCatChem 2020; 12:4352-4372. [PMID: 34447481 PMCID: PMC8386297 DOI: 10.1002/cctc.202000626] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2020] [Indexed: 01/02/2023]
Abstract
We have developed a phosphine-catalyzed (4+1) annulative rearrangement for the preparation of 3-pyrrolines from allenylic carbamates via phosphonium diene intermediates. We employed this methodology to synthesize an array of 1,3-disubstituted- and 1,2,3-trisubstituted-3-pyrrolines, including the often difficult to prepare 2-alkyl variants. A mechanistic investigation employing allenylic acetates and mononucleophiles unexpectedly unveiled that a phosphine-catalyzed (4+1) reaction for the construction of cyclopentene products, previously reported by Tong, might not occur through a phosphonium diene, as had been proposed, but rather through multiple mechanisms working in concert. Consequently, our phosphine-catalyzed rearrangement is most likely the first transformation to involve the unequivocal formation of a phosphonium diene intermediate along the reaction pathway. To demonstrate the synthetic utility of this newly developed reaction, we have completed concise formal syntheses of the pyrrolizidine alkaloids (±)-trachelanthamidine and (±)-supinidine.
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Affiliation(s)
- Brian R Blank
- Department of Chemistry and Biochemistry, University of California, Los Angeles, 607 Charles E. Young Drive East, Los Angeles, California, 90095-1569 (USA)
| | - Ian P Andrews
- Department of Chemistry and Biochemistry, University of California, Los Angeles, 607 Charles E. Young Drive East, Los Angeles, California, 90095-1569 (USA)
| | - Ohyun Kwon
- Department of Chemistry and Biochemistry, University of California, Los Angeles, 607 Charles E. Young Drive East, Los Angeles, California, 90095-1569 (USA)
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6
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Affiliation(s)
- Yin Wei
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, University of Chinese Academy of Sciences, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences 345 Lingling Road Shanghai 200032 China
| | - Min Shi
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, University of Chinese Academy of Sciences, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences 345 Lingling Road Shanghai 200032 China
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7
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Abstract
The 1,3-dipolar cycloaddition reaction is a powerful and versatile strategy for
the synthesis of carbocyclic and heterocyclic five-membered rings. Herein, the most recent
developments on the [3+2] cycloaddition reactions using allenes acting either as dipolarophiles
or 1,3-dipole precursors, are highlighted. The recent contributions on the
phosphine- and transition metal-catalyzed [3+2] annulations involving allenes as substrates
are also covered, with the exception of those in which the formation of a 1,3-dipole
(or synthetic equivalent) is not invoked.
This review summarizes the most relevant research in which allenes are used as building
blocks for the construction of structurally diverse five-membered rings via [3+2] annulation
reactions.
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Affiliation(s)
- Ana L. Cardoso
- CQC and Department of Chemistry, University of Coimbra, 3004-535 Coimbra, Portugal
| | - Maria I.L. Soares
- CQC and Department of Chemistry, University of Coimbra, 3004-535 Coimbra, Portugal
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8
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Abstract
The hallmark of nucleophilic phosphine catalysis is the initial nucleophilic addition of a phosphine to an electrophilic starting material, producing a reactive zwitterionic intermediate, generally under mild conditions. In this Review, we classify nucleophilic phosphine catalysis reactions in terms of their electrophilic components. In the majority of cases, these electrophiles possess carbon-carbon multiple bonds: alkenes (section 2), allenes (section 3), alkynes (section 4), and Morita-Baylis-Hillman (MBH) alcohol derivatives (MBHADs; section 5). Within each of these sections, the reactions are compiled based on the nature of the second starting material-nucleophiles, dinucleophiles, electrophiles, and electrophile-nucleophiles. Nucleophilic phosphine catalysis reactions that occur via the initial addition to starting materials that do not possess carbon-carbon multiple bonds are collated in section 6. Although not catalytic in the phosphine, the formation of ylides through the nucleophilic addition of phosphines to carbon-carbon multiple bond-containing compounds is intimately related to the catalysis and is discussed in section 7. Finally, section 8 compiles miscellaneous topics, including annulations of the Hüisgen zwitterion, phosphine-mediated reductions, iminophosphorane organocatalysis, and catalytic variants of classical phosphine oxide-generating reactions.
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Affiliation(s)
- Hongchao Guo
- Department of Applied Chemistry, China Agricultural University, Beijing 100193, P. R. China
| | - Yi Chiao Fan
- Department of Chemistry and Biochemistry, University of California, Los Angeles, 607 Charles E. Young Drive East, Los Angeles, CA 90095-1569, USA
| | - Zhanhu Sun
- Department of Applied Chemistry, China Agricultural University, Beijing 100193, P. R. China
| | - Yang Wu
- Department of Applied Chemistry, China Agricultural University, Beijing 100193, P. R. China
| | - Ohyun Kwon
- Department of Chemistry and Biochemistry, University of California, Los Angeles, 607 Charles E. Young Drive East, Los Angeles, CA 90095-1569, USA
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9
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Affiliation(s)
- Huanzhen Ni
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore, 117543 Singapore
| | - Wai-Lun Chan
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore, 117543 Singapore
| | - Yixin Lu
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore, 117543 Singapore
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10
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Wang D, Liu W, Hong Y, Tong X. Phosphine-Catalyzed (3 + 2) Annulation of δ-Acetoxy Allenoates with 2-Sulfonamidomalonate: Synthesis of Highly Substituted 3-Pyrrolines and Mechanistic Insight. Org Lett 2018; 20:5002-5005. [DOI: 10.1021/acs.orglett.8b02156] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Dong Wang
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Petrochemical Engineering, Changzhou University, 1 Gehu Road, Changzhou, 213164, China
| | - Wei Liu
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Petrochemical Engineering, Changzhou University, 1 Gehu Road, Changzhou, 213164, China
| | - Yang Hong
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Petrochemical Engineering, Changzhou University, 1 Gehu Road, Changzhou, 213164, China
| | - Xiaofeng Tong
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Petrochemical Engineering, Changzhou University, 1 Gehu Road, Changzhou, 213164, China
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12
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Dan HG, Rao GW. Recent Advances in Amino Acid-Based Phosphine Catalysts and Their Applications in Asymmetric Reactions. RUSSIAN JOURNAL OF ORGANIC CHEMISTRY 2018. [DOI: 10.1134/s1070428018060015] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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13
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Xing JJ, Gao YN, Shi M. Phosphine-Initiated Cascade Annulation of β′-Acetoxy Allenoate and p
-Quinols: Access to Ring Fused Hexahydroindeno Furan Derivatives. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201800319] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Jiao-Jiao Xing
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals, School of Chemistry & Molecular Engineering; East China University of Science and Technology; 130 Mei Long Road Shanghai 200237 People's Republic of China
| | - Yu-Ning Gao
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals, School of Chemistry & Molecular Engineering; East China University of Science and Technology; 130 Mei Long Road Shanghai 200237 People's Republic of China
| | - Min Shi
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals, School of Chemistry & Molecular Engineering; East China University of Science and Technology; 130 Mei Long Road Shanghai 200237 People's Republic of China
- State Key Laboratory and Institute of Elemento-organic Chemistry; Nankai University; Tianjin 300071 People's Republic of China
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry; Chinese Academy of Sciences; 354 Fenglin Lu Shanghai 200032 People's Republic of China
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14
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Mohammadi Ziarani G, Moradi R, Lashgari N. Asymmetric synthesis of chiral oxindoles using isatin as starting material. Tetrahedron 2018. [DOI: 10.1016/j.tet.2018.01.025] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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15
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Wang C, Gao Z, Zhou L, Wang Q, Wu Y, Yuan C, Liao J, Xiao Y, Guo H. Multifunctional chiral phosphine-catalyzed [3+2] annulation of Morita-Baylis-Hillman carbonates with cyclopentenones: asymmetric synthesis of 4-oxo-hexahydropentalenes. Chem Commun (Camb) 2018; 54:279-282. [PMID: 29231934 DOI: 10.1039/c7cc08380g] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
A multifunctional chiral phosphine-catalyzed enantioselective [3+2] annulation of Morita-Baylis-Hillman carbonates with cyclopentenones provides a direct approach to access functional 4-oxo-1,3a,4,5,6,6a-hexahydropentalene compounds. Moderate to good yields and excellent enantioselectivities (>90% ee) were obtained for a series of substrates under mild reaction conditions.
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Affiliation(s)
- Chang Wang
- Department of Applied Chemistry, China Agricultural University, Beijing 100193, China.
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16
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Kaur J, Chimni SS. Catalytic synthesis of 3-aminooxindoles via addition to isatin imine: an update. Org Biomol Chem 2018; 16:3328-3347. [DOI: 10.1039/c7ob03002a] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
3-Substituted-3-aminooxindoles have attracted the attention of organic chemist to develop different synthetic methodologies for their synthesis using catalysts. This review covers the recent developments.
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Affiliation(s)
- Jasneet Kaur
- Department of Chemistry
- U.G.C. Centre of Advance Study-II
- Guru Nanak Dev University
- Amritsar
- India
| | - Swapandeep Singh Chimni
- Department of Chemistry
- U.G.C. Centre of Advance Study-II
- Guru Nanak Dev University
- Amritsar
- India
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17
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Mei GJ, Shi F. Catalytic asymmetric synthesis of spirooxindoles: recent developments. Chem Commun (Camb) 2018; 54:6607-6621. [DOI: 10.1039/c8cc02364f] [Citation(s) in RCA: 286] [Impact Index Per Article: 47.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
The past four years have witnessed significant developments in the field of the catalytic asymmetric synthesis of spirooxindoles, and this feature article outlines the recent progress in this area, including the contributions of our group. This article is divided into sections according to the size and type of the generated spiro-ring fused at the C3-position of the oxindole core.
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Affiliation(s)
- Guang-Jian Mei
- School of Chemistry and Materials Science
- Jiangsu Normal University
- Xuzhou
- China
| | - Feng Shi
- School of Chemistry and Materials Science
- Jiangsu Normal University
- Xuzhou
- China
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18
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Kitagaki S, Nakamura K, Kawabata C, Ishikawa A, Takenaga N, Yoshida K. Planar chiral [2.2]paracyclophane-based phosphine–phenols: use in enantioselective [3 + 2] annulations of allenoates and N-tosylimines. Org Biomol Chem 2018; 16:1770-1778. [DOI: 10.1039/c8ob00248g] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Planar chiral [2.2]paracyclophane-based phosphine–phenols efficiently catalyze the [3 + 2] annulation of N-tosylimines and allenoate.
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19
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Arai T, Tosaka T, Kuwano S. Catalytic Asymmetric Mannich Reaction of Isatin-derivedN-Boc Imines with Malononitrile by Bis(imidazolidine)-derived Pincer Rh Complex. ChemistrySelect 2017. [DOI: 10.1002/slct.201701444] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Takayoshi Arai
- Soft Molecular Activation Research Center (SMARC); Molecular Chirality Research Center (MCRC), and Department of Chemistry; Graduate School of Science; Chiba University, 1-33 Yayoi, Inage; Chiba 263-8522 Japan
| | - Takuya Tosaka
- Soft Molecular Activation Research Center (SMARC); Molecular Chirality Research Center (MCRC), and Department of Chemistry; Graduate School of Science; Chiba University, 1-33 Yayoi, Inage; Chiba 263-8522 Japan
| | - Satoru Kuwano
- Soft Molecular Activation Research Center (SMARC); Molecular Chirality Research Center (MCRC), and Department of Chemistry; Graduate School of Science; Chiba University, 1-33 Yayoi, Inage; Chiba 263-8522 Japan
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20
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Kondo M, Omori M, Hatanaka T, Funahashi Y, Nakamura S. Catalytic Enantioselective Reaction of Allenylnitriles with Imines Using Chiral Bis(imidazoline)s Palladium(II) Pincer Complexes. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201702429] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Masaru Kondo
- Department of Life Science and Applied Chemistry; Graduate School of Engineering; Nagoya Institute of Technology; Gokiso, Showa-ku Nagoya 466-8555 Japan
- Frontier Research Institute for Material Science; Nagoya Institute of Technology; Gokiso, Showa-ku Nagoya 466-8555 Japan
| | - Masashi Omori
- Department of Life Science and Applied Chemistry; Graduate School of Engineering; Nagoya Institute of Technology; Gokiso, Showa-ku Nagoya 466-8555 Japan
| | - Tsubasa Hatanaka
- Department of Chemistry; Graduate School of Science; Osaka University; 1-1 Machikaneyama, Toyonaka Osaka 560-0043 Japan
| | - Yasuhiro Funahashi
- Department of Chemistry; Graduate School of Science; Osaka University; 1-1 Machikaneyama, Toyonaka Osaka 560-0043 Japan
| | - Shuichi Nakamura
- Department of Life Science and Applied Chemistry; Graduate School of Engineering; Nagoya Institute of Technology; Gokiso, Showa-ku Nagoya 466-8555 Japan
- Frontier Research Institute for Material Science; Nagoya Institute of Technology; Gokiso, Showa-ku Nagoya 466-8555 Japan
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21
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Kondo M, Omori M, Hatanaka T, Funahashi Y, Nakamura S. Catalytic Enantioselective Reaction of Allenylnitriles with Imines Using Chiral Bis(imidazoline)s Palladium(II) Pincer Complexes. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/anie.201702429] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Masaru Kondo
- Department of Life Science and Applied Chemistry; Graduate School of Engineering; Nagoya Institute of Technology; Gokiso, Showa-ku Nagoya 466-8555 Japan
- Frontier Research Institute for Material Science; Nagoya Institute of Technology; Gokiso, Showa-ku Nagoya 466-8555 Japan
| | - Masashi Omori
- Department of Life Science and Applied Chemistry; Graduate School of Engineering; Nagoya Institute of Technology; Gokiso, Showa-ku Nagoya 466-8555 Japan
| | - Tsubasa Hatanaka
- Department of Chemistry; Graduate School of Science; Osaka University; 1-1 Machikaneyama, Toyonaka Osaka 560-0043 Japan
| | - Yasuhiro Funahashi
- Department of Chemistry; Graduate School of Science; Osaka University; 1-1 Machikaneyama, Toyonaka Osaka 560-0043 Japan
| | - Shuichi Nakamura
- Department of Life Science and Applied Chemistry; Graduate School of Engineering; Nagoya Institute of Technology; Gokiso, Showa-ku Nagoya 466-8555 Japan
- Frontier Research Institute for Material Science; Nagoya Institute of Technology; Gokiso, Showa-ku Nagoya 466-8555 Japan
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22
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Gao YN, Xu Q, Wei Y, Shi M. Exploration of A New Zwitterion: Phosphine-Catalyzed [2+1+2] Cycloaddition Reaction. Adv Synth Catal 2017. [DOI: 10.1002/adsc.201700242] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Yu-Ning Gao
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals, School of Chemistry & Molecular Engineering; East China University of Science and Technology; 130 Mei Long Road Shanghai 200237 People's Republic of China
| | - Qin Xu
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals, School of Chemistry & Molecular Engineering; East China University of Science and Technology; 130 Mei Long Road Shanghai 200237 People's Republic of China
| | - Yin Wei
- State Key Laboratory of Organometallic Chemistry; University of Chinese Academy of Sciences; Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences; 354 Fenglin Lu Shanghai 200032 People's Republic of China
| | - Min Shi
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals, School of Chemistry & Molecular Engineering; East China University of Science and Technology; 130 Mei Long Road Shanghai 200237 People's Republic of China
- State Key Laboratory and Institute of Elemento-organic Chemistry; Nankai University; Tianjin 300071 People's Republic of China
- State Key Laboratory of Organometallic Chemistry; University of Chinese Academy of Sciences; Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences; 354 Fenglin Lu Shanghai 200032 People's Republic of China
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23
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24
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Cheng C, Lu X, Ge L, Chen J, Cao W, Wu X, Zhao G. Effective asymmetric vinylogous Mannich reaction of isatin imines with α,α-dicyanoolefins in the presence of a simple chiral amide phosphonium bifunctional phase transfer catalyst. Org Chem Front 2017. [DOI: 10.1039/c6qo00546b] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
A Mannich reaction between N-Boc isatin imine and α,α-dicyanoolefin as well as subsequent oxidative cleavage of the malonic nitrile moiety were described.
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Affiliation(s)
- Cang Cheng
- Department of Chemistry
- Shanghai University
- Shanghai 200444
- China
| | - Xuehe Lu
- Department of Chemistry
- Shanghai University
- Shanghai 200444
- China
| | - Luo Ge
- Department of Chemistry
- Shanghai University
- Shanghai 200444
- China
| | - Jie Chen
- Department of Chemistry
- Shanghai University
- Shanghai 200444
- China
| | - Weiguo Cao
- Department of Chemistry
- Shanghai University
- Shanghai 200444
- China
| | - Xiaoyu Wu
- Department of Chemistry
- Shanghai University
- Shanghai 200444
- China
- Key Laboratory of Synthetic Chemistry of Natural Substances
| | - Gang Zhao
- Key Laboratory of Synthetic Chemistry of Natural Substances
- Shanghai Institute of Organic Chemistry
- Chinese Academy of Sciences
- Shanghai 200032
- China
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25
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Marcantoni E, Petrini M. Recent Developments in the Stereoselective Synthesis of Nitrogen-Containing Heterocycles usingN-Acylimines as Reactive Substrates. Adv Synth Catal 2016. [DOI: 10.1002/adsc.201600644] [Citation(s) in RCA: 52] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Enrico Marcantoni
- School of Science and Technology; Chemistry Division; Università di Camerino; via S. Agostino 1 62032 Camerino Italy
| | - Marino Petrini
- School of Science and Technology; Chemistry Division; Università di Camerino; via S. Agostino 1 62032 Camerino Italy
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