1
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Mei P, Ma Z, Chen Y, Wu Y, Hao W, Fan QH, Zhang WX. Chiral bisphosphine Ph-BPE ligand: a rising star in asymmetric synthesis. Chem Soc Rev 2024; 53:6735-6778. [PMID: 38826108 DOI: 10.1039/d3cs00028a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/04/2024]
Abstract
Chiral 1,2-bis(2,5-diphenylphospholano)ethane (Ph-BPE) is a class of optimal organic bisphosphine ligands with C2-symmetry. Ph-BPE with its excellent catalytic performance in asymmetric synthesis has attracted much attention of chemists with increasing popularity and is growing into one of the most commonly used organophosphorus ligands, especially in asymmetric catalysis. Over two hundred examples have been reported since 2012. This review presents how Ph-BPE is utilized in asymmetric synthesis and how powerful it is as a chiral ligand or even a catalyst in a wide range of reactions including applications in the total synthesis of bioactive molecules.
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Affiliation(s)
- Peifeng Mei
- Beijing National Laboratory for Molecular Sciences (BNLMS), State Key Laboratory of Rare-Earth Materials Chemistry and Applications & Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China.
| | - Zibin Ma
- Beijing National Laboratory for Molecular Sciences (BNLMS), State Key Laboratory of Rare-Earth Materials Chemistry and Applications & Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China.
| | - Yu Chen
- Beijing National Laboratory for Molecular Sciences (BNLMS), State Key Laboratory of Rare-Earth Materials Chemistry and Applications & Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China.
| | - Yue Wu
- Beijing National Laboratory for Molecular Sciences (BNLMS), State Key Laboratory of Rare-Earth Materials Chemistry and Applications & Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China.
| | - Wei Hao
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Qing-Hua Fan
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Wen-Xiong Zhang
- Beijing National Laboratory for Molecular Sciences (BNLMS), State Key Laboratory of Rare-Earth Materials Chemistry and Applications & Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China.
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2
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Yuan T, Radefeld K, Shan C, Wegner C, Nichols E, Ye X, Tang Q, Wojtas L, Shi X. Asymmetric Hydrative Aldol Reaction (HAR) via Vinyl-Gold Promoted Intermolecular Ynamide Addition to Aldehydes. Angew Chem Int Ed Engl 2023; 62:e202305810. [PMID: 37276357 PMCID: PMC10527335 DOI: 10.1002/anie.202305810] [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: 04/25/2023] [Revised: 06/03/2023] [Accepted: 06/05/2023] [Indexed: 06/07/2023]
Abstract
Herein, we reported an intermolecular asymmetric hydrative aldol reaction through vinyl-gold intermediate under ambient conditions. This tandem alkyne hydration and sequential nucleophilic addition afforded a "base-free" approach to β-hydroxy amides with high efficiency (up to 95 % yields, >50 examples). Vinyl gold intermediate was applied as reactive nucleophile and Fe(acac)3 was used as the critical co-catalyst to prevent undesired protodeauration, allowing this transformation to proceed under mild conditions with good functional group tolerance and excellent stereoselectivity (>20 : 1 d.r. and up to 99 % ee).
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Affiliation(s)
- Teng Yuan
- Department of Chemistry, University of South Florida, FL 33620, Tampa, USA
| | - Kelton Radefeld
- Department of Chemistry, University of South Florida, FL 33620, Tampa, USA
| | - Chuan Shan
- Department of Chemistry, University of South Florida, FL 33620, Tampa, USA
| | - Carter Wegner
- Department of Chemistry, University of South Florida, FL 33620, Tampa, USA
| | - Erin Nichols
- Department of Chemistry, University of South Florida, FL 33620, Tampa, USA
| | - Xiaohan Ye
- Department of Chemistry, University of South Florida, FL 33620, Tampa, USA
| | - Qi Tang
- Department of Chemistry, University of South Florida, FL 33620, Tampa, USA
| | - Lukasz Wojtas
- Department of Chemistry, University of South Florida, FL 33620, Tampa, USA
| | - Xiaodong Shi
- Department of Chemistry, University of South Florida, FL 33620, Tampa, USA
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3
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Rahman MA, Cellnik T, Ahuja BB, Li L, Healy AR. A catalytic enantioselective stereodivergent aldol reaction. SCIENCE ADVANCES 2023; 9:eadg8776. [PMID: 36921040 PMCID: PMC10017038 DOI: 10.1126/sciadv.adg8776] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/27/2023] [Accepted: 02/13/2023] [Indexed: 06/18/2023]
Abstract
The aldol reaction is among the most powerful and strategically important carbon-carbon bond-forming transformations in organic chemistry. The importance of the aldol reaction in constructing chiral building blocks for complex small-molecule synthesis has spurred continuous efforts toward the development of direct catalytic variants. The realization of a general catalytic aldol reaction with control over both the relative and absolute configurations of the newly formed stereogenic centers has been a longstanding goal in the field. Here, we report a decarboxylative aldol reaction that provides access to all four possible stereoisomers of the aldol product in one step from identical reactants. The mild reaction can be carried out on a large scale in an open flask, and generates CO2 as the only by-product. The method tolerates a broad substrate scope and generates chiral β-hydroxy thioester products with substantial downstream utility.
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Affiliation(s)
- Md. Ataur Rahman
- Chemistry Program, New York University Abu Dhabi (NYUAD), Saadiyat Island, Abu Dhabi, United Arab Emirates (UAE)
| | - Torsten Cellnik
- Chemistry Program, New York University Abu Dhabi (NYUAD), Saadiyat Island, Abu Dhabi, United Arab Emirates (UAE)
| | - Brij Bhushan Ahuja
- Chemistry Program, New York University Abu Dhabi (NYUAD), Saadiyat Island, Abu Dhabi, United Arab Emirates (UAE)
| | - Liang Li
- Chemistry Program, New York University Abu Dhabi (NYUAD), Saadiyat Island, Abu Dhabi, United Arab Emirates (UAE)
- Department of Sciences and Engineering, Sorbonne University Abu Dhabi, Abu Dhabi, United Arab Emirates (UAE)
| | - Alan R. Healy
- Chemistry Program, New York University Abu Dhabi (NYUAD), Saadiyat Island, Abu Dhabi, United Arab Emirates (UAE)
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4
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Zhen G, Zeng G, Jiang K, Wang F, Cao X, Yin B. Visible-Light-Induced Diradical-Mediated ipso-Cyclization towards Double Dearomative [2+2]-Cycloaddition or Smiles-Type Rearrangement. Chemistry 2023; 29:e202203217. [PMID: 36460618 DOI: 10.1002/chem.202203217] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2022] [Revised: 12/01/2022] [Accepted: 12/02/2022] [Indexed: 12/05/2022]
Abstract
When mono-radical ipso-cyclization of aryl sulfonamides tend to undergo Smiles-type rearrangement through aromatization-driven C-S bond cleavage, diradical-mediated cyclization must perform in a distinct reaction pathway. It is interesting meanwhile challenging to tune the rate of C-S bond cleavage to achieve a chemically divergent reaction of (hetero) aryl sulfonamides in a visible-light induced energy transfer (EnT) reaction pathway involving diradical species. Herein a chemically divergent reaction based on the designed indole-tethered (hetero)arylsulfonamides is reported which involves a diradical-mediated ipso-cyclization and a controllable cleavage of an inherent C-S bond. The combined experimental and computational results have revealed that the cleavage of the C-S bond in these substrates can be controlled by tuning the heteroaryl moieties: a) If the (hetero)aryl is thienyl, furyl, phenanthryl, etc., the radical coupling of double dearomative diradicals (DDDR) precedes over C-S bond cleavage to afford cyclobutene fused indolines by double dearomative [2+2]-cycloaddition; b) if the (hetero)aryl is phenyl, naphthyl, pyridyl, indolyl etc., the cleavage of C-S bond in DDDR is favored over radical coupling to afford biaryl products.
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Affiliation(s)
- Guangjin Zhen
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology (SCUT), State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou, 510640, P. R. China
| | - Guohui Zeng
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology (SCUT), State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou, 510640, P. R. China
| | - Kai Jiang
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology (SCUT), State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou, 510640, P. R. China
| | - Furong Wang
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology (SCUT), State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou, 510640, P. R. China
| | - Xiaohui Cao
- School of Pharmacy, Guangdong Pharmaceutical University, Pharmaceutical University, Guangzhou, 510006, P. R. China
| | - Biaolin Yin
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology (SCUT), State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou, 510640, P. R. China
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5
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Green and Efficient Acquirement of Unsaturated Ether from Direct and Selective Hydrogenation Coupling Unsaturated Aldehyde with Alcohol by Bi-Functional Al-Ni-P Heterogeneous Catalysts. Catalysts 2023. [DOI: 10.3390/catal13020439] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/22/2023] Open
Abstract
In view of the industrial importance of high-grade unsaturated ether (UE) and the inconvenience of acquiring the compound, herein, a series of low-cost Al-Ni-P catalysts in robust AlPO4/Ni2P structure possessing novel bi-functional catalytic features (hydrogenation activation and acid catalysis) were innovated, and testified to be efficient for directly synthesizing UE with a superior yield up to 97% from the selective hydrogenation coupling carbonyl of unsaturated aldehyde (cinnamaldehyde or citral) with C1–C5 primary or secondary alcohol under 0.1 MPa H2 and 393 K. The integrated advantages of high efficiency, green manner and convenient operation of the present heterogeneous catalytic system gave the system potential for feasibly harvesting high-grade unsaturated ether in related fine chemical synthesis networks.
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6
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Mellado-Hidalgo M, Romero-Cavagnaro EA, Nageswaran S, Puddu S, Kennington SCD, Costa AM, Romea P, Urpí F, Aullón G, Font-Bardia M. Protected syn-Aldol Compounds from Direct, Catalytic, and Enantioselective Reactions of N-Acyl-1,3-oxazinane-2-thiones with Aromatic Acetals. Org Lett 2023; 25:659-664. [PMID: 36700336 PMCID: PMC9903318 DOI: 10.1021/acs.orglett.2c04254] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
A direct and asymmetric syn-aldol reaction of N-acyl-1,3-oxazinane-2-thiones with dialkyl acetals from aromatic acetals in the presence of 2-5 mol % [DTBM-SEGPHOS]NiCl2, TMSOTf, and lutidine has been developed. It has been established that the oxazinanethione heterocycle, used for the first time as a scaffold in asymmetric carbon-carbon bond-forming reactions, can be smoothly removed to give access to a variety of enantiomerically pure compounds with high synthetic value.
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Affiliation(s)
- Miguel Mellado-Hidalgo
- †Department
of Inorganic and Organic Chemistry, Section of Organic
Chemistry and ‡Institut de Biomedicina de la Universitat de Barcelona (IBUB), Universitat de Barcelona, Carrer Martí i Franqués 1-11, 08028 Barcelona, Spain
| | - Elias A. Romero-Cavagnaro
- †Department
of Inorganic and Organic Chemistry, Section of Organic
Chemistry and ‡Institut de Biomedicina de la Universitat de Barcelona (IBUB), Universitat de Barcelona, Carrer Martí i Franqués 1-11, 08028 Barcelona, Spain
| | - Sajanthanaa Nageswaran
- †Department
of Inorganic and Organic Chemistry, Section of Organic
Chemistry and ‡Institut de Biomedicina de la Universitat de Barcelona (IBUB), Universitat de Barcelona, Carrer Martí i Franqués 1-11, 08028 Barcelona, Spain
| | - Sabrina Puddu
- †Department
of Inorganic and Organic Chemistry, Section of Organic
Chemistry and ‡Institut de Biomedicina de la Universitat de Barcelona (IBUB), Universitat de Barcelona, Carrer Martí i Franqués 1-11, 08028 Barcelona, Spain
| | - Stuart C. D. Kennington
- †Department
of Inorganic and Organic Chemistry, Section of Organic
Chemistry and ‡Institut de Biomedicina de la Universitat de Barcelona (IBUB), Universitat de Barcelona, Carrer Martí i Franqués 1-11, 08028 Barcelona, Spain
| | - Anna M. Costa
- †Department
of Inorganic and Organic Chemistry, Section of Organic
Chemistry and ‡Institut de Biomedicina de la Universitat de Barcelona (IBUB), Universitat de Barcelona, Carrer Martí i Franqués 1-11, 08028 Barcelona, Spain,
| | - Pedro Romea
- †Department
of Inorganic and Organic Chemistry, Section of Organic
Chemistry and ‡Institut de Biomedicina de la Universitat de Barcelona (IBUB), Universitat de Barcelona, Carrer Martí i Franqués 1-11, 08028 Barcelona, Spain,
| | - Fèlix Urpí
- †Department
of Inorganic and Organic Chemistry, Section of Organic
Chemistry and ‡Institut de Biomedicina de la Universitat de Barcelona (IBUB), Universitat de Barcelona, Carrer Martí i Franqués 1-11, 08028 Barcelona, Spain,
| | - Gabriel Aullón
- Department
of Inorganic and Organic Chemistry, Section of Inorganic Chemistry
and Institut de Química Teòrica i Computacional de la
Universitat de Barcelona, Universitat de
Barcelona, Carrer Martí i Franqués 1-11, 08028 Barcelona, Spain
| | - Mercè Font-Bardia
- X-Ray
Diffraction Unity, CCiTUB, Universitat de
Barcelona, Carrer Solé i Sabarís 1-3, 08028 Barcelona, Spain
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7
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Yan HH, Sha F, Wu XY. Copper-catalyzed enantioselective 1,4-hydroboration of α,β-unsaturated amides. Tetrahedron Lett 2023. [DOI: 10.1016/j.tetlet.2023.154364] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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8
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Shukla MS, Hande PE, Chandra S. Porous Silica Support for Immobilizing Chiral Metal Catalyst: Unravelling the Activity of Catalyst on Asymmetric Organic Transformations. ChemistrySelect 2022. [DOI: 10.1002/slct.202200549] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Meenakshi S. Shukla
- Department of Chemistry Sunandan Divatia School of Science SVKM's NMIMS (Deemed to be) University, Vile Parle (W) Mumbai 400056 India
| | - Pankaj E. Hande
- Department of Chemistry Indian Institute of Technology Bombay, Powai Mumbai 400076 India
| | - Sudeshna Chandra
- Department of Chemistry Sunandan Divatia School of Science SVKM's NMIMS (Deemed to be) University, Vile Parle (W) Mumbai 400056 India
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9
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Kennington SCD, Teloxa SF, Mellado-Hidalgo M, Galeote O, Puddu S, Bellido M, Romea P, Urpí F, Aullón G, Font-Bardia M. Direct and Enantioselective Aldol Reactions Catalyzed by Chiral Nickel(II) Complexes. Angew Chem Int Ed Engl 2021; 60:15307-15312. [PMID: 33872449 PMCID: PMC8362213 DOI: 10.1002/anie.202104352] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2021] [Revised: 04/12/2021] [Indexed: 01/07/2023]
Abstract
A direct and asymmetric aldol reaction of N‐acyl thiazinanethiones with aromatic aldehydes catalyzed by chiral nickel(II) complexes is reported. The reaction gives the corresponding O‐TIPS‐protected anti‐aldol adducts in high yields and with remarkable stereocontrol and atom economy. Furthermore, the straightforward removal of the achiral scaffold provides enantiomerically pure intermediates of synthetic interest, which involve precursors for anti‐α‐amino‐β‐hydroxy and α,β‐dihydroxy carboxylic derivatives. Theoretical calculations explain the observed high stereocontrol.
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Affiliation(s)
- Stuart C D Kennington
- Department of Inorganic and Organic Chemistry, Section of Organic Chemistry, Universitat de Barcelona, Carrer Martí i Franqués 1-11, 08028, Barcelona, Spain
| | - Saul F Teloxa
- Department of Inorganic and Organic Chemistry, Section of Organic Chemistry, Universitat de Barcelona, Carrer Martí i Franqués 1-11, 08028, Barcelona, Spain
| | - Miguel Mellado-Hidalgo
- Department of Inorganic and Organic Chemistry, Section of Organic Chemistry, Universitat de Barcelona, Carrer Martí i Franqués 1-11, 08028, Barcelona, Spain
| | - Oriol Galeote
- Department of Inorganic and Organic Chemistry, Section of Organic Chemistry, Universitat de Barcelona, Carrer Martí i Franqués 1-11, 08028, Barcelona, Spain
| | - Sabrina Puddu
- Department of Inorganic and Organic Chemistry, Section of Organic Chemistry, Universitat de Barcelona, Carrer Martí i Franqués 1-11, 08028, Barcelona, Spain
| | - Marina Bellido
- Department of Inorganic and Organic Chemistry, Section of Organic Chemistry, Universitat de Barcelona, Carrer Martí i Franqués 1-11, 08028, Barcelona, Spain
| | - Pedro Romea
- Department of Inorganic and Organic Chemistry, Section of Organic Chemistry, Universitat de Barcelona, Carrer Martí i Franqués 1-11, 08028, Barcelona, Spain
| | - Fèlix Urpí
- Department of Inorganic and Organic Chemistry, Section of Organic Chemistry, Universitat de Barcelona, Carrer Martí i Franqués 1-11, 08028, Barcelona, Spain
| | - Gabriel Aullón
- Department of Inorganic and Organic Chemistry, Section of Inorganic Chemistry, Universitat de Barcelona, Carrer Martí i Franqués 1-11, 08028, Barcelona, Spain
| | - Mercè Font-Bardia
- X-ray Diffraction Unity, CCiTUB, Universitat de Barcelona, Carrer Solé i Sabarís 1-3, 08028, Barcelona, Spain
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10
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Kennington SCD, Teloxa SF, Mellado‐Hidalgo M, Galeote O, Puddu S, Bellido M, Romea P, Urpí F, Aullón G, Font‐Bardia M. Direct and Enantioselective Aldol Reactions Catalyzed by Chiral Nickel(II) Complexes. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202104352] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Stuart C. D. Kennington
- Department of Inorganic and Organic Chemistry Section of Organic Chemistry Universitat de Barcelona Carrer Martí i Franqués 1–11 08028 Barcelona Spain
| | - Saul F. Teloxa
- Department of Inorganic and Organic Chemistry Section of Organic Chemistry Universitat de Barcelona Carrer Martí i Franqués 1–11 08028 Barcelona Spain
| | - Miguel Mellado‐Hidalgo
- Department of Inorganic and Organic Chemistry Section of Organic Chemistry Universitat de Barcelona Carrer Martí i Franqués 1–11 08028 Barcelona Spain
| | - Oriol Galeote
- Department of Inorganic and Organic Chemistry Section of Organic Chemistry Universitat de Barcelona Carrer Martí i Franqués 1–11 08028 Barcelona Spain
| | - Sabrina Puddu
- Department of Inorganic and Organic Chemistry Section of Organic Chemistry Universitat de Barcelona Carrer Martí i Franqués 1–11 08028 Barcelona Spain
| | - Marina Bellido
- Department of Inorganic and Organic Chemistry Section of Organic Chemistry Universitat de Barcelona Carrer Martí i Franqués 1–11 08028 Barcelona Spain
| | - Pedro Romea
- Department of Inorganic and Organic Chemistry Section of Organic Chemistry Universitat de Barcelona Carrer Martí i Franqués 1–11 08028 Barcelona Spain
| | - Fèlix Urpí
- Department of Inorganic and Organic Chemistry Section of Organic Chemistry Universitat de Barcelona Carrer Martí i Franqués 1–11 08028 Barcelona Spain
| | - Gabriel Aullón
- Department of Inorganic and Organic Chemistry Section of Inorganic Chemistry Universitat de Barcelona Carrer Martí i Franqués 1–11 08028 Barcelona Spain
| | - Mercè Font‐Bardia
- X-ray Diffraction Unity CCiTUB Universitat de Barcelona Carrer Solé i Sabarís 1–3 08028 Barcelona Spain
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11
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Noda H, Shibasaki M, Kumagai N. Design, Synthesis, and Application of Multiboron Heterocycle to Direct Amidation Catalyst. J SYN ORG CHEM JPN 2020. [DOI: 10.5059/yukigoseikyokaishi.78.971] [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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12
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Cui J, Kumagai N, Watanabe T, Shibasaki M. Direct catalytic asymmetric and anti-selective vinylogous addition of butenolides to chromones. Chem Sci 2020; 11:7170-7176. [PMID: 34123001 PMCID: PMC8159409 DOI: 10.1039/d0sc01914c] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
Abstract
An anti-selective catalytic asymmetric Michael-type vinylogous addition of β,γ-butenolides to chromones was developed. The catalyst system developed herein is characterized by tuning of the steric and electronic effects using a proper Biphep-type chiral ligand to invert the diastereoselection, and improvement of the catalyst turnover by a coordinative phenolic additive. The catalytic protocol renders potentially biologically active natural product analogs accessible in good yield with moderate diastereoselectivity and high enantiomeric purity, mostly greater than 99% ee.
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Affiliation(s)
- Jin Cui
- Institute of Microbial Chemistry (BIKAKEN) Tokyo 141-0021 Japan
| | - Naoya Kumagai
- Institute of Microbial Chemistry (BIKAKEN) Tokyo 141-0021 Japan
| | - Takumi Watanabe
- Institute of Microbial Chemistry (BIKAKEN) Tokyo 141-0021 Japan
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13
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Fang Z, Yin H, Lin L, Wen S, Xie L, Huang Y, Weng Z. Collaborative Activation of Trifluoroacetyl Diazoester by a Lewis Acid and Base for the Synthesis of Polysubstituted 4-Trifluoromethylpyrazoles. J Org Chem 2020; 85:8714-8722. [DOI: 10.1021/acs.joc.0c00737] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Zheng Fang
- State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fujian 350108, China
| | - Hongshan Yin
- State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fujian 350108, China
| | - Lu Lin
- State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fujian 350108, China
| | - Shunli Wen
- State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fujian 350108, China
| | - Lili Xie
- State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fujian 350108, China
| | - Yangjie Huang
- State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fujian 350108, China
| | - Zhiqiang Weng
- State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fujian 350108, China
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14
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Pluta R, Li Z, Kumagai N, Shibasaki M. Z-Enolate Geometry in the Thioamide Aldol Reaction Illuminated by the 7-Azaindoline Auxiliary. Org Lett 2020; 22:791-794. [PMID: 31829612 DOI: 10.1021/acs.orglett.9b04120] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Z or E enolate geometry is the primary determinant of diastereoselectivity in the aldol reaction. Although amide and thioamide enolates are anticipated to have predominantly the E geometry because of the intrinsic steric demand, spectroscopic confirmation of the geometry in solution has remained elusive, particularly in the realm of highly stereoselective catalytic asymmetric aldol reactions. Herein we demonstrate that the 7-azaindoline auxiliary enables direct observation of the exclusive formation of the Z-enolate of the thioamide en route to a highly syn-selective aldol reaction.
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Affiliation(s)
- Roman Pluta
- Institute of Microbial Chemistry , 3-14-23 Kamiosaki , Shinagawa-ku , Tokyo 141-0021 , Japan
| | - Zhao Li
- Institute of Microbial Chemistry , 3-14-23 Kamiosaki , Shinagawa-ku , Tokyo 141-0021 , Japan
| | - Naoya Kumagai
- Institute of Microbial Chemistry , 3-14-23 Kamiosaki , Shinagawa-ku , Tokyo 141-0021 , Japan
| | - Masakatsu Shibasaki
- Institute of Microbial Chemistry , 3-14-23 Kamiosaki , Shinagawa-ku , Tokyo 141-0021 , Japan
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15
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Liu YW, Mao ZY, Nie XD, Si CM, Wei BG, Lin GQ. Approach to Tertiary-Type β-Hydroxyl Carboxamides Through Sc(OTf)3-Catalyzed Addition of Ynamides and Ketones. J Org Chem 2019; 84:16254-16261. [DOI: 10.1021/acs.joc.9b02854] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Yi-Wen Liu
- Institutes of Biomedical Sciences and School of Pharmacy, Fudan University, 220 Handan Road, Shanghai 200433, China
| | - Zhuo-Ya Mao
- Institutes of Biomedical Sciences and School of Pharmacy, Fudan University, 220 Handan Road, Shanghai 200433, China
| | - Xiao-Di Nie
- Institutes of Biomedical Sciences and School of Pharmacy, Fudan University, 220 Handan Road, Shanghai 200433, China
| | - Chang-Mei Si
- Institutes of Biomedical Sciences and School of Pharmacy, Fudan University, 220 Handan Road, Shanghai 200433, China
| | - Bang-Guo Wei
- Institutes of Biomedical Sciences and School of Pharmacy, Fudan University, 220 Handan Road, Shanghai 200433, China
| | - Guo-Qiang Lin
- Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
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16
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Zhang YP, You Y, Zhao JQ, Zhang XM, Xu XY, Yuan WC. Chiral Bifunctional Amine-Squaramide-Catalyzed Highly Diastereo- and Enantioselective Michael/Aldol Cascade Reaction of 2-Mercaptobenzaldehyde and α,β-Unsaturated 7-Azaindoline Amides. J Org Chem 2019; 84:7984-7994. [DOI: 10.1021/acs.joc.9b00837] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Yan-Ping Zhang
- National Engineering Research Center of Chiral Drugs, Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu 610041, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yong You
- Institute for Advanced Study, Chengdu University, Chengdu 610106, China
| | - Jian-Qiang Zhao
- Institute for Advanced Study, Chengdu University, Chengdu 610106, China
| | - Xiao-Mei Zhang
- National Engineering Research Center of Chiral Drugs, Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu 610041, China
| | - Xiao-Ying Xu
- National Engineering Research Center of Chiral Drugs, Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu 610041, China
| | - Wei-Cheng Yuan
- National Engineering Research Center of Chiral Drugs, Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu 610041, China
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17
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Méndez‐Sánchez D, Mourelle‐Insua Á, Gotor‐Fernández V, Lavandera I. Synthesis of α‐Alkyl‐β‐Hydroxy Amides through Biocatalytic Dynamic Kinetic Resolution Employing Alcohol Dehydrogenases. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201900317] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Daniel Méndez‐Sánchez
- Department of Organic and Inorganic ChemistryUniversity of Oviedo Avenida Julián Clavería 8 33006 Oviedo Spain
- Current address: Department of ChemistryUniversity College London 20 Gordon Street London WC1H 0AJ UK
| | - Ángela Mourelle‐Insua
- Department of Organic and Inorganic ChemistryUniversity of Oviedo Avenida Julián Clavería 8 33006 Oviedo Spain
| | - Vicente Gotor‐Fernández
- Department of Organic and Inorganic ChemistryUniversity of Oviedo Avenida Julián Clavería 8 33006 Oviedo Spain
| | - Iván Lavandera
- Department of Organic and Inorganic ChemistryUniversity of Oviedo Avenida Julián Clavería 8 33006 Oviedo Spain
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18
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Pluta R, Kumagai N, Shibasaki M. Direct Catalytic Asymmetric Aldol Reaction of α‐Alkoxyamides to α‐Fluorinated Ketones. Angew Chem Int Ed Engl 2019; 58:2459-2463. [PMID: 30652398 DOI: 10.1002/anie.201814607] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2018] [Indexed: 11/11/2022]
Affiliation(s)
- Roman Pluta
- Institute of Microbial Chemistry (BIKAKEN) 3-14-23 Kamiosaki, Shinagawa-ku Tokyo 141-0021 Japan
| | - Naoya Kumagai
- Institute of Microbial Chemistry (BIKAKEN) 3-14-23 Kamiosaki, Shinagawa-ku Tokyo 141-0021 Japan
| | - Masakatsu Shibasaki
- Institute of Microbial Chemistry (BIKAKEN) 3-14-23 Kamiosaki, Shinagawa-ku Tokyo 141-0021 Japan
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19
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Pluta R, Kumagai N, Shibasaki M. Direct Catalytic Asymmetric Aldol Reaction of α‐Alkoxyamides to α‐Fluorinated Ketones. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201814607] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Roman Pluta
- Institute of Microbial Chemistry (BIKAKEN) 3-14-23 Kamiosaki, Shinagawa-ku Tokyo 141-0021 Japan
| | - Naoya Kumagai
- Institute of Microbial Chemistry (BIKAKEN) 3-14-23 Kamiosaki, Shinagawa-ku Tokyo 141-0021 Japan
| | - Masakatsu Shibasaki
- Institute of Microbial Chemistry (BIKAKEN) 3-14-23 Kamiosaki, Shinagawa-ku Tokyo 141-0021 Japan
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20
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Kennington SCD, Taylor AJ, Romea P, Urpí F, Aullón G, Font-Bardia M, Ferré L, Rodrigalvarez J. Direct and Asymmetric Nickel(II)-Catalyzed Construction of Carbon-Carbon Bonds from N-Acyl Thiazinanethiones. Org Lett 2019; 21:305-309. [PMID: 30582705 DOI: 10.1021/acs.orglett.8b03757] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A wide array of new N-acyl thiazinanethiones are employed in a number of direct and enantioselective carbon-carbon-bond-forming reactions catalyzed by nickel(II) complexes. The electrophilic species are mostly prepared in situ from ortho esters, methyl ethers, acetals, and ketals, which makes the overall process highly efficient and experimentally straightforward. Theoretical calculations indicate that the reactions proceed through an open transition state in a SN1-like mechanism. The utility of this novel procedure has been demonstrated by the asymmetric preparation of synthetically useful intermediates and the total synthesis of peperomin D.
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Affiliation(s)
- Stuart C D Kennington
- Department of Inorganic and Organic Chemistry, Section of Organic Chemistry, and Institute of Biomedicine (IBUB) , University of Barcelona , Carrer Martí i Franqués 1-11 , 08028 Barcelona , Catalonia , Spain
| | - Adam J Taylor
- Department of Inorganic and Organic Chemistry, Section of Organic Chemistry, and Institute of Biomedicine (IBUB) , University of Barcelona , Carrer Martí i Franqués 1-11 , 08028 Barcelona , Catalonia , Spain
| | - Pedro Romea
- Department of Inorganic and Organic Chemistry, Section of Organic Chemistry, and Institute of Biomedicine (IBUB) , University of Barcelona , Carrer Martí i Franqués 1-11 , 08028 Barcelona , Catalonia , Spain
| | - Fèlix Urpí
- Department of Inorganic and Organic Chemistry, Section of Organic Chemistry, and Institute of Biomedicine (IBUB) , University of Barcelona , Carrer Martí i Franqués 1-11 , 08028 Barcelona , Catalonia , Spain
| | - Gabriel Aullón
- Department of Inorganic and Organic Chemistry, Section of Inorganic Chemistry , University of Barcelona , Carrer Martí i Franqués 1-11 , 08028 Barcelona , Catalonia , Spain
| | - Mercè Font-Bardia
- Unitat de Difracció de RX, CCiTUB, Universitat de Barcelona , Carrer Solé i Sabarís 1-3 , 08028 Barcelona , Catalonia , Spain
| | - Laura Ferré
- Department of Inorganic and Organic Chemistry, Section of Organic Chemistry, and Institute of Biomedicine (IBUB) , University of Barcelona , Carrer Martí i Franqués 1-11 , 08028 Barcelona , Catalonia , Spain
| | - Jesus Rodrigalvarez
- Department of Inorganic and Organic Chemistry, Section of Organic Chemistry, and Institute of Biomedicine (IBUB) , University of Barcelona , Carrer Martí i Franqués 1-11 , 08028 Barcelona , Catalonia , Spain
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21
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Zhang YP, You Y, Zhao JQ, Zhou XJ, Zhang XM, Xu XY, Yuan WC. A AgOAc/quinine-derived aminophosphine complex as an efficient catalyst for diastereo- and enantioselective 1,3-dipolar cycloaddition of α,β-unsaturated 7-azaindoline amides and azomethine ylides. Org Chem Front 2019. [DOI: 10.1039/c9qo00347a] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
The Dixon’s catalyst system is effective for the asymmetric 1,3-dipolar cycloaddition.
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Affiliation(s)
- Yan-Ping Zhang
- National Engineering Research Center of Chiral Drugs
- Chengdu Institute of Organic Chemistry
- Chinese Academy of Sciences
- Chengdu
- China
| | - Yong You
- Institute for Advanced Study
- Chengdu University
- Chengdu 610106
- China
| | - Jian-Qiang Zhao
- Institute for Advanced Study
- Chengdu University
- Chengdu 610106
- China
| | - Xiao-Jian Zhou
- National Engineering Research Center of Chiral Drugs
- Chengdu Institute of Organic Chemistry
- Chinese Academy of Sciences
- Chengdu
- China
| | - Xiao-Mei Zhang
- National Engineering Research Center of Chiral Drugs
- Chengdu Institute of Organic Chemistry
- Chinese Academy of Sciences
- Chengdu
- China
| | - Xiao-Ying Xu
- National Engineering Research Center of Chiral Drugs
- Chengdu Institute of Organic Chemistry
- Chinese Academy of Sciences
- Chengdu
- China
| | - Wei-Cheng Yuan
- National Engineering Research Center of Chiral Drugs
- Chengdu Institute of Organic Chemistry
- Chinese Academy of Sciences
- Chengdu
- China
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22
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Zhang HJ, Yin L. Asymmetric Synthesis of α,β-Unsaturated δ-Lactones through Copper(I)-Catalyzed Direct Vinylogous Aldol Reaction. J Am Chem Soc 2018; 140:12270-12279. [DOI: 10.1021/jacs.8b07929] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Hai-Jun Zhang
- CAS Key Laboratory of Synthetic Chemistry of Natural Substances, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
| | - Liang Yin
- CAS Key Laboratory of Synthetic Chemistry of Natural Substances, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
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23
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Direct enolization chemistry of 7-azaindoline amides: A case study of bis(tetrahydrophosphole)-type ligands. Tetrahedron 2018. [DOI: 10.1016/j.tet.2018.03.073] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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24
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Sun Z, Sun B, Kumagai N, Shibasaki M. Direct Catalytic Asymmetric 1,6-Conjugate Addition of Amides to p-Quinone Methides. Org Lett 2018; 20:3070-3073. [DOI: 10.1021/acs.orglett.8b01109] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Affiliation(s)
- Zhongdong Sun
- Institute of Microbial Chemistry (BIKAKEN), 3-14-23 Kamiosaki, Shinagawa-ku, Tokyo 141-0021, Japan
| | - Bo Sun
- Institute of Microbial Chemistry (BIKAKEN), 3-14-23 Kamiosaki, Shinagawa-ku, Tokyo 141-0021, Japan
| | - Naoya Kumagai
- Institute of Microbial Chemistry (BIKAKEN), 3-14-23 Kamiosaki, Shinagawa-ku, Tokyo 141-0021, Japan
| | - Masakatsu Shibasaki
- Institute of Microbial Chemistry (BIKAKEN), 3-14-23 Kamiosaki, Shinagawa-ku, Tokyo 141-0021, Japan
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25
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Takeuchi T, Kumagai N, Shibasaki M. Direct Catalytic Asymmetric Aldol Reaction of α-Vinyl Acetamide. J Org Chem 2018; 83:5851-5858. [DOI: 10.1021/acs.joc.8b00743] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Toshifumi Takeuchi
- Institute of Microbial Chemistry (BIKAKEN), Tokyo 3-14-23 Kamiosaki, Shinagawa-ku, Tokyo 141-0021, Japan
| | - Naoya Kumagai
- Institute of Microbial Chemistry (BIKAKEN), Tokyo 3-14-23 Kamiosaki, Shinagawa-ku, Tokyo 141-0021, Japan
| | - Masakatsu Shibasaki
- Institute of Microbial Chemistry (BIKAKEN), Tokyo 3-14-23 Kamiosaki, Shinagawa-ku, Tokyo 141-0021, Japan
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26
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Noda H, Kumagai N, Shibasaki M. Catalytic Asymmetric Synthesis of α‐Trifluoromethylated Carbinols: A Case Study of Tertiary Propargylic Alcohols. ASIAN J ORG CHEM 2018. [DOI: 10.1002/ajoc.201800013] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Hidetoshi Noda
- Institute of Microbial Chemistry (BIKAKEN), Tokyo 3-14-23 Kamiosaki Shinagawa-ku Tokyo 141-0021 Japan
| | - Naoya Kumagai
- Institute of Microbial Chemistry (BIKAKEN), Tokyo 3-14-23 Kamiosaki Shinagawa-ku Tokyo 141-0021 Japan
| | - Masakatsu Shibasaki
- Institute of Microbial Chemistry (BIKAKEN), Tokyo 3-14-23 Kamiosaki Shinagawa-ku Tokyo 141-0021 Japan
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27
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Jiang X, Boehm P, Hartwig JF. Stereodivergent Allylation of Azaaryl Acetamides and Acetates by Synergistic Iridium and Copper Catalysis. J Am Chem Soc 2018; 140:1239-1242. [PMID: 29319306 PMCID: PMC5812688 DOI: 10.1021/jacs.7b12824] [Citation(s) in RCA: 153] [Impact Index Per Article: 25.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
We report stereodivergent allylic substitution reactions of allylic esters with prochiral enolates derived from azaaryl acetamides and acetates to form products from addition of the enolates at the most substituted carbon of an allyl moiety with two catalysts, a chiral metallacyclic iridium complex and a chiral bisphosphine-ligated copper(I) complex, which individually control the configuration of the electrophilic and nucleophilic carbon atoms, respectively. By simple permutations of enantiomers of the two catalysts, all four stereoisomers of products containing two stereogenic centers were synthesized individually with high diastereoselectivity and enantioselectivity. A variety of azaaryl acetamides and acetates bearing pyridyl, benzothiazolyl, benzoxazolyl, pyrazinyl, quinolinyl and isoquinolinyl moieties were all found to be suitable for this transformation.
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Affiliation(s)
- Xingyu Jiang
- Department of Chemistry, University of California , Berkeley, California 94720, United States
| | - Philip Boehm
- Department of Chemistry, University of California , Berkeley, California 94720, United States
| | - John F Hartwig
- Department of Chemistry, University of California , Berkeley, California 94720, United States
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28
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Sun B, Pluta R, Kumagai N, Shibasaki M. Direct Catalytic Asymmetric Mannich-Type Reaction en Route to α-Hydroxy-β-amino Acid Derivatives. Org Lett 2018; 20:526-529. [DOI: 10.1021/acs.orglett.7b03609] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Bo Sun
- Institute of Microbial Chemistry (BIKAKEN), 3-14-23 Kamiosaki, Shinagawa-ku, Tokyo 141-0021, Japan
| | - Roman Pluta
- Institute of Microbial Chemistry (BIKAKEN), 3-14-23 Kamiosaki, Shinagawa-ku, Tokyo 141-0021, Japan
| | - Naoya Kumagai
- Institute of Microbial Chemistry (BIKAKEN), 3-14-23 Kamiosaki, Shinagawa-ku, Tokyo 141-0021, Japan
| | - Masakatsu Shibasaki
- Institute of Microbial Chemistry (BIKAKEN), 3-14-23 Kamiosaki, Shinagawa-ku, Tokyo 141-0021, Japan
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29
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Yamashita Y, Yasukawa T, Yoo WJ, Kitanosono T, Kobayashi S. Catalytic enantioselective aldol reactions. Chem Soc Rev 2018; 47:4388-4480. [DOI: 10.1039/c7cs00824d] [Citation(s) in RCA: 165] [Impact Index Per Article: 27.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Recent developments in catalytic asymmetric aldol reactions have been summarized.
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Affiliation(s)
- Yasuhiro Yamashita
- Department of Chemistry
- School of Science
- The University of Tokyo
- Bunkyo-ku
- Japan
| | - Tomohiro Yasukawa
- Department of Chemistry
- School of Science
- The University of Tokyo
- Bunkyo-ku
- Japan
| | - Woo-Jin Yoo
- Department of Chemistry
- School of Science
- The University of Tokyo
- Bunkyo-ku
- Japan
| | - Taku Kitanosono
- Department of Chemistry
- School of Science
- The University of Tokyo
- Bunkyo-ku
- Japan
| | - Shū Kobayashi
- Department of Chemistry
- School of Science
- The University of Tokyo
- Bunkyo-ku
- Japan
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30
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Li CT, Liu H, Xu YJ, Lu CD. Aldol Reaction of N-tert-Butanesulfinyl Imidates under Basic Conditions for Diastereoselective Synthesis of anti-Aldols. J Org Chem 2017; 82:11253-11261. [PMID: 28926692 DOI: 10.1021/acs.joc.7b01982] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Diastereoselective aldol reaction of N-tert-butanesulfinyl imidates under typical hard enolization conditions is reported. Potassium bis(trimethylsilyl)amide (KHMDS) effectively promotes the aldol reaction of α-aryl- and α-alkyl-substituted imidates, providing anti-aldol adducts in high yields with good to excellent diastereoselectivities. In the case of α-aryl imidates, high conversion depends on adding trimethylsilyl chloride (TMSCl) to the reaction mixture. In the presence of a suitable Lewis acid, cyclohexanone is a good electrophile in the aldol reaction of imidates.
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Affiliation(s)
- Chun-Tian Li
- Key Laboratory of Plant Resources and Chemistry of Arid Zones, Xinjiang Technical Institute of Physics & Chemistry, Chinese Academy of Sciences , Urumqi 830011, China.,University of the Chinese Academy of Sciences , Beijing 100049, China
| | - Hui Liu
- Key Laboratory of Plant Resources and Chemistry of Arid Zones, Xinjiang Technical Institute of Physics & Chemistry, Chinese Academy of Sciences , Urumqi 830011, China
| | - Yan-Jun Xu
- Key Laboratory of Plant Resources and Chemistry of Arid Zones, Xinjiang Technical Institute of Physics & Chemistry, Chinese Academy of Sciences , Urumqi 830011, China
| | - Chong-Dao Lu
- Key Laboratory of Plant Resources and Chemistry of Arid Zones, Xinjiang Technical Institute of Physics & Chemistry, Chinese Academy of Sciences , Urumqi 830011, China
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31
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Matsuzawa A, Noda H, Kumagai N, Shibasaki M. Direct Catalytic Asymmetric Aldol Addition of an α-CF3 Amide to Arylglyoxal Hydrates. J Org Chem 2017; 82:8304-8308. [DOI: 10.1021/acs.joc.7b01381] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Akinobu Matsuzawa
- Institute of Microbial Chemistry (BIKAKEN) 3-14-23 Kamiosaki, Shinagawa-ku, Tokyo 141-0021, Japan
| | - Hidetoshi Noda
- Institute of Microbial Chemistry (BIKAKEN) 3-14-23 Kamiosaki, Shinagawa-ku, Tokyo 141-0021, Japan
| | - Naoya Kumagai
- Institute of Microbial Chemistry (BIKAKEN) 3-14-23 Kamiosaki, Shinagawa-ku, Tokyo 141-0021, Japan
| | - Masakatsu Shibasaki
- Institute of Microbial Chemistry (BIKAKEN) 3-14-23 Kamiosaki, Shinagawa-ku, Tokyo 141-0021, Japan
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32
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Zhang M, Kumagai N, Shibasaki M. α,β‐Unsaturated Amides as Dipolarophiles: Catalytic Asymmetric
exo
‐Selective 1,3‐Dipolar Cycloaddition with Nitrones. Chemistry 2017; 23:12450-12455. [DOI: 10.1002/chem.201702330] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2017] [Indexed: 11/09/2022]
Affiliation(s)
- Ming Zhang
- Institute of Microbial Chemistry (BIKAKEN), Tokyo 3-14-23 Kamiosaki, Shinagawa-ku Tokyo 141-0021 Japan
| | - Naoya Kumagai
- Institute of Microbial Chemistry (BIKAKEN), Tokyo 3-14-23 Kamiosaki, Shinagawa-ku Tokyo 141-0021 Japan
| | - Masakatsu Shibasaki
- Institute of Microbial Chemistry (BIKAKEN), Tokyo 3-14-23 Kamiosaki, Shinagawa-ku Tokyo 141-0021 Japan
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