1
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Liu C, Van der Eycken J, Van der Eycken EV. Transition Metal-Free N-S Bond Cleavage and C-N Bond Activation of Ugi-Adducts for Rapid Preparation of Primary Amides and α-Ketoamides. Chemistry 2023; 29:e202301541. [PMID: 37410246 DOI: 10.1002/chem.202301541] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2023] [Revised: 07/05/2023] [Accepted: 07/06/2023] [Indexed: 07/07/2023]
Abstract
A novel method of transition metal-free N-S bond cleavage and subsequent C-N bond activation of Ugi-adducts was developed. Diverse primary amides and α-ketoamides were prepared in a rapid, step-economical and highly efficient manner in two steps. This strategy features excellent chemoselectivity, high yield and functional-group tolerance. Primary amides derived from the pharmaceuticals probenecid and febuxostat were prepared. This method opens a new pathway for the simultaneous synthesis of primary amides and α-ketoamides in an environmentally friendly manner.
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Affiliation(s)
- Chao Liu
- Laboratory for Organic & Microwave-Assisted Chemistry (LOMAC), Department of Chemistry, University of Leuven (KU Leuven), Celestijnenlaan 200F, 3001, Leuven, Belgium
| | - Johan Van der Eycken
- Laboratory for Organic and Bio-Organic Synthesis, Department of Organic and Macromolecular Chemistry, Ghent University, Krijgslaan 281 (S.4), Ghent, 9000, Belgium
| | - Erik V Van der Eycken
- Laboratory for Organic & Microwave-Assisted Chemistry (LOMAC), Department of Chemistry, University of Leuven (KU Leuven), Celestijnenlaan 200F, 3001, Leuven, Belgium
- Peoples' Friendship University of Russia (RUDN University), Miklukho-Maklaya street 6, Moskva, RU-117198, Moscow, Russia
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2
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Zhang J, Zhu Y, Cai J, Jia J, Liu G, Dang Y, Wang X, Zhang Y. Copper‐Catalyzed Oxidative Amidation for the Synthesis of α‐Ketoamides from α‐Diazoketones with Amines Using Oxygen as Oxidant. ASIAN J ORG CHEM 2022. [DOI: 10.1002/ajoc.202200264] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Jianlan Zhang
- Xi'an University of Science and Technology College of Chemistry and Chemical Engineering No.58, Yanta Road 710054 Xi'an CHINA
| | - Youyu Zhu
- Xi'an University of Science and Technology College of Chemistry and Chemical Engineering CHINA
| | - Jiangtao Cai
- Xi'an University of Science and Technology College of Chemistry and Chemical Engineering CHINA
| | - Jia Jia
- Xi'an University of Science and Technology College of Chemistry and Chemical Engineering CHINA
| | - Guoyang Liu
- Xi'an University of Science and Technology College of Chemistry and Chemical Engineering CHINA
| | - Yongqiang Dang
- Xi'an University of Science and Technology College of Chemistry and Chemical Engineering CHINA
| | - Xuesong Wang
- Hainan Medical University School of Pharmacy CHINA
| | - Yating Zhang
- Xi'an University of Science and Technology College of Chemistry and Chemical Engineering CHINA
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3
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Andres R, Wang Q, Zhu J. Catalytic Enantioselective Pictet-Spengler Reaction of α-Ketoamides Catalyzed by a Single H-Bond Donor Organocatalyst. Angew Chem Int Ed Engl 2022; 61:e202201788. [PMID: 35225416 PMCID: PMC9313548 DOI: 10.1002/anie.202201788] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2022] [Indexed: 01/17/2023]
Abstract
The asymmetric Pictet-Spengler reaction (PSR) with aldehydes is well known. However, PSR involving ketones as electrophilic partners is far-less developed. We report herein the first examples of catalytic enantioselective PSR of tryptamines with α-ketoamides. A new class of easily accessible prolyl-urea organocatalysts bearing a single H-bond donor function catalyzes the title reaction to afford 1,1-disubstituted tetrahydro-β-carbolines in excellent yields and enantioselectivities. The kinetic isotope effect using C2-deuterium-labelled tryptamine indicates that the rearomatization of the pentahydro-β-carbolinium ion intermediate might be the rate- and the enantioselectivity-determining step.
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Affiliation(s)
- Rémi Andres
- Laboratory of Synthesis and Natural ProductsInstitute of Chemical Sciences and EngineeringEcole Polytechnique Fédérale de Lausanne, EPFL-SB-ISIC-LSPN, BCH5304, 1015LausanneSwitzerland
| | - Qian Wang
- Laboratory of Synthesis and Natural ProductsInstitute of Chemical Sciences and EngineeringEcole Polytechnique Fédérale de Lausanne, EPFL-SB-ISIC-LSPN, BCH5304, 1015LausanneSwitzerland
| | - Jieping Zhu
- Laboratory of Synthesis and Natural ProductsInstitute of Chemical Sciences and EngineeringEcole Polytechnique Fédérale de Lausanne, EPFL-SB-ISIC-LSPN, BCH5304, 1015LausanneSwitzerland
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4
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Andres R, Wang Q, Zhu J. Catalytic Enantioselective Pictet–Spengler Reaction of α‐Ketoamides Catalyzed by a Single H‐Bond Donor Organocatalyst. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202201788] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Rémi Andres
- Laboratory of Synthesis and Natural Products Institute of Chemical Sciences and Engineering Ecole Polytechnique Fédérale de Lausanne, EPFL-SB-ISIC-LSPN, BCH 5304, 1015 Lausanne Switzerland
| | - Qian Wang
- Laboratory of Synthesis and Natural Products Institute of Chemical Sciences and Engineering Ecole Polytechnique Fédérale de Lausanne, EPFL-SB-ISIC-LSPN, BCH 5304, 1015 Lausanne Switzerland
| | - Jieping Zhu
- Laboratory of Synthesis and Natural Products Institute of Chemical Sciences and Engineering Ecole Polytechnique Fédérale de Lausanne, EPFL-SB-ISIC-LSPN, BCH 5304, 1015 Lausanne Switzerland
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5
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Lv L, Chen Y, Shatskiy A, Liu J, Liu X, Kärkäs MD, Wang X. Silver‐Catalyzed [3+1+1] Annulation of Nitrones with Isocyanoacetates as an Approach to 1,4,5‐Trisubstituted Imidazoles. European J Org Chem 2020. [DOI: 10.1002/ejoc.202001536] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Lanlan Lv
- School of Chemistry and Materials Science Jiangsu Key Laboratory of Green Synthesis for Functional Materials Jiangsu Normal University Xuzhou Jiangsu 221116 China
| | - Yan Chen
- School of Chemistry and Materials Science Jiangsu Key Laboratory of Green Synthesis for Functional Materials Jiangsu Normal University Xuzhou Jiangsu 221116 China
| | - Andrey Shatskiy
- Department of Chemistry KTH Royal Institute of Technology 100 44 Stockholm Sweden
| | - Jian‐Quan Liu
- School of Chemistry and Materials Science Jiangsu Key Laboratory of Green Synthesis for Functional Materials Jiangsu Normal University Xuzhou Jiangsu 221116 China
- Department of Chemistry KTH Royal Institute of Technology 100 44 Stockholm Sweden
| | - Xiaoyi Liu
- School of Chemistry and Materials Science Jiangsu Key Laboratory of Green Synthesis for Functional Materials Jiangsu Normal University Xuzhou Jiangsu 221116 China
| | - Markus D. Kärkäs
- Department of Chemistry KTH Royal Institute of Technology 100 44 Stockholm Sweden
| | - Xiang‐Shan Wang
- School of Chemistry and Materials Science Jiangsu Key Laboratory of Green Synthesis for Functional Materials Jiangsu Normal University Xuzhou Jiangsu 221116 China
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6
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Cao W, Li S, Xu M, Li H, Xu X, Lan Y, Ji S. Hydrogen‐Bonding‐Promoted Cascade Rearrangement Involving the Enlargement of Two Rings: Efficient Access to Polycyclic Quinoline Derivatives. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202008110] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Wen‐Bin Cao
- Key Laboratory of Organic Synthesis of Jiangsu Province College of Chemistry, Chemical Engineering and Materials Science & Collaborative Innovation Center of Suzhou Nano Science and Technology Soochow University Suzhou 215123 China
| | - Shijun Li
- College of Chemistry, and Institute of Green Catalysis Zhengzhou University Zhengzhou Henan 450001 China
| | - Meng‐Meng Xu
- Key Laboratory of Organic Synthesis of Jiangsu Province College of Chemistry, Chemical Engineering and Materials Science & Collaborative Innovation Center of Suzhou Nano Science and Technology Soochow University Suzhou 215123 China
| | - Haiyan Li
- Analysis and Testing Center Soochow University Suzhou 215123 China
| | - Xiao‐Ping Xu
- Key Laboratory of Organic Synthesis of Jiangsu Province College of Chemistry, Chemical Engineering and Materials Science & Collaborative Innovation Center of Suzhou Nano Science and Technology Soochow University Suzhou 215123 China
| | - Yu Lan
- College of Chemistry, and Institute of Green Catalysis Zhengzhou University Zhengzhou Henan 450001 China
- School of Chemistry and Chemical Engineering Chongqing University Chongqing 400030 China
| | - Shun‐Jun Ji
- Key Laboratory of Organic Synthesis of Jiangsu Province College of Chemistry, Chemical Engineering and Materials Science & Collaborative Innovation Center of Suzhou Nano Science and Technology Soochow University Suzhou 215123 China
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7
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Cao W, Li S, Xu M, Li H, Xu X, Lan Y, Ji S. Hydrogen‐Bonding‐Promoted Cascade Rearrangement Involving the Enlargement of Two Rings: Efficient Access to Polycyclic Quinoline Derivatives. Angew Chem Int Ed Engl 2020; 59:21425-21430. [DOI: 10.1002/anie.202008110] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2020] [Revised: 07/13/2020] [Indexed: 12/15/2022]
Affiliation(s)
- Wen‐Bin Cao
- Key Laboratory of Organic Synthesis of Jiangsu Province College of Chemistry, Chemical Engineering and Materials Science & Collaborative Innovation Center of Suzhou Nano Science and Technology Soochow University Suzhou 215123 China
| | - Shijun Li
- College of Chemistry, and Institute of Green Catalysis Zhengzhou University Zhengzhou Henan 450001 China
| | - Meng‐Meng Xu
- Key Laboratory of Organic Synthesis of Jiangsu Province College of Chemistry, Chemical Engineering and Materials Science & Collaborative Innovation Center of Suzhou Nano Science and Technology Soochow University Suzhou 215123 China
| | - Haiyan Li
- Analysis and Testing Center Soochow University Suzhou 215123 China
| | - Xiao‐Ping Xu
- Key Laboratory of Organic Synthesis of Jiangsu Province College of Chemistry, Chemical Engineering and Materials Science & Collaborative Innovation Center of Suzhou Nano Science and Technology Soochow University Suzhou 215123 China
| | - Yu Lan
- College of Chemistry, and Institute of Green Catalysis Zhengzhou University Zhengzhou Henan 450001 China
- School of Chemistry and Chemical Engineering Chongqing University Chongqing 400030 China
| | - Shun‐Jun Ji
- Key Laboratory of Organic Synthesis of Jiangsu Province College of Chemistry, Chemical Engineering and Materials Science & Collaborative Innovation Center of Suzhou Nano Science and Technology Soochow University Suzhou 215123 China
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8
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Chen Y, Wu Y, Shatskiy A, Kan Y, Kärkäs MD, Liu JQ, Wang XS. Cooperative Silver- and Base-Catalyzed Diastereoselective Cycloaddition of Nitrones with Methylene Isocyanides: Access to 2-Imidazolinones. European J Org Chem 2020. [DOI: 10.1002/ejoc.202000437] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Yan Chen
- School of Chemistry and Materials Science; Jiangsu Key Laboratory of Green Synthesis for Functional Materials Jiangsu Normal University; 221116 Xuzhou Jiangsu China
| | - Yijing Wu
- School of Chemistry and Materials Science; Jiangsu Key Laboratory of Green Synthesis for Functional Materials Jiangsu Normal University; 221116 Xuzhou Jiangsu China
| | - Andrey Shatskiy
- Department of Chemistry; KTH Royal Institute of Technology; 100 44 Stockholm Sweden
| | - Yuhe Kan
- Jiangsu Key Laboratory for Chemistry of Low-Dimensional Materials; School of Chemistry and Chemical Engineering; Huaiyin Normal University; 223300 Huaian PR China
| | - Markus D. Kärkäs
- Department of Chemistry; KTH Royal Institute of Technology; 100 44 Stockholm Sweden
| | - Jian-Quan Liu
- School of Chemistry and Materials Science; Jiangsu Key Laboratory of Green Synthesis for Functional Materials Jiangsu Normal University; 221116 Xuzhou Jiangsu China
- Department of Chemistry; KTH Royal Institute of Technology; 100 44 Stockholm Sweden
| | - Xiang-Shan Wang
- School of Chemistry and Materials Science; Jiangsu Key Laboratory of Green Synthesis for Functional Materials Jiangsu Normal University; 221116 Xuzhou Jiangsu China
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9
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Qiu G, Mamboury M, Wang Q, Zhu J. Ketenimines from Isocyanides and Allyl Carbonates: Palladium-Catalyzed Synthesis of β,γ-Unsaturated Amides and Tetrazoles. Angew Chem Int Ed Engl 2016; 55:15377-15381. [PMID: 27862731 DOI: 10.1002/anie.201609034] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2016] [Indexed: 01/10/2023]
Abstract
The reaction of allyl ethyl carbonates with isocyanides in the presence of a catalytic amount of Pd(OAc)2 provided ketenimines through β-hydride elimination of the allyl imidoylpalladium intermediates. The insertion of the isocyanide into the π-allyl Pd complex proceeded via an unusual η1 -allyl Pd species. The resulting ketenimines were hydrolyzed to β,γ-unsaturated carboxamides during purification by flash column chromatography on silica gel or converted in situ into 1,5-disubstituted tetrazoles by [3+2] cycloaddition with hydrazoic acid or trimethylsilyl azide.
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Affiliation(s)
- Guanyinsheng Qiu
- Laboratory of Synthesis and Natural Products, Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne, EPFL-SB-ISIC-LSPN, BCH 5304, 1015, Lausanne, Switzerland
| | - Mathias Mamboury
- Laboratory of Synthesis and Natural Products, Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne, EPFL-SB-ISIC-LSPN, BCH 5304, 1015, Lausanne, Switzerland
| | - Qian Wang
- Laboratory of Synthesis and Natural Products, Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne, EPFL-SB-ISIC-LSPN, BCH 5304, 1015, Lausanne, Switzerland
| | - Jieping Zhu
- Laboratory of Synthesis and Natural Products, Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne, EPFL-SB-ISIC-LSPN, BCH 5304, 1015, Lausanne, Switzerland
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10
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Qiu G, Mamboury M, Wang Q, Zhu J. Ketenimines from Isocyanides and Allyl Carbonates: Palladium-Catalyzed Synthesis of β,γ-Unsaturated Amides and Tetrazoles. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201609034] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Guanyinsheng Qiu
- Laboratory of Synthesis and Natural Products; Institute of Chemical Sciences and Engineering; Ecole Polytechnique Fédérale de Lausanne; EPFL-SB-ISIC-LSPN, BCH 5304 1015 Lausanne Switzerland
| | - Mathias Mamboury
- Laboratory of Synthesis and Natural Products; Institute of Chemical Sciences and Engineering; Ecole Polytechnique Fédérale de Lausanne; EPFL-SB-ISIC-LSPN, BCH 5304 1015 Lausanne Switzerland
| | - Qian Wang
- Laboratory of Synthesis and Natural Products; Institute of Chemical Sciences and Engineering; Ecole Polytechnique Fédérale de Lausanne; EPFL-SB-ISIC-LSPN, BCH 5304 1015 Lausanne Switzerland
| | - Jieping Zhu
- Laboratory of Synthesis and Natural Products; Institute of Chemical Sciences and Engineering; Ecole Polytechnique Fédérale de Lausanne; EPFL-SB-ISIC-LSPN, BCH 5304 1015 Lausanne Switzerland
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11
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Wang Y, Yang X, Zhang C, Yu J, Liu J, Xia C. Phosphine-Free, Efficient Double Carbonylation of Aryl Iodides with Amines Catalyzed by Water-Insoluble and Water-Soluble N-Heterocyclic Carbene-Amine Palladium Complexes. Adv Synth Catal 2014. [DOI: 10.1002/adsc.201400040] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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12
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Guin S, Rout SK, Gogoi A, Ali W, Patel BK. A Palladium(II)-Catalyzed Synthesis of α-KetoamidesviaChemoselective Aroyl Addition to Cyanamides. Adv Synth Catal 2014. [DOI: 10.1002/adsc.201400011] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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13
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Li D, Yu W. Oxygen‐Involved Oxidative Deacetylation of α‐Substituted β‐Acetyl Amides – Synthesis of α‐Keto Amides. Adv Synth Catal 2013. [DOI: 10.1002/adsc.201300660] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Dianjun Li
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, People's Republic of China, Fax: (+86)‐931‐891‐2582
| | - Wei Yu
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, People's Republic of China, Fax: (+86)‐931‐891‐2582
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14
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Drouet F, Zhu J, Masson G. Iron Chloride‐Catalyzed Three‐Component Domino Sequences: Syntheses of Functionalized α‐Oxy‐N‐acylhemiaminals and α‐Oxyimides. Adv Synth Catal 2013. [DOI: 10.1002/adsc.201300847] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Fleur Drouet
- Centre de Recherche de Gif, Institut de Chimie des Substances Naturelles, CNRS, 91198 Gif‐sur‐Yvette Cedex, France, homepage: http://www.icsn.cnrs‐gif.fr/spip.php?article225
| | - Jieping Zhu
- Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne (EPFL), EPFL‐SB‐ISIC LSPN, CH‐1015 Lausanne, Switzerland
| | - Géraldine Masson
- Centre de Recherche de Gif, Institut de Chimie des Substances Naturelles, CNRS, 91198 Gif‐sur‐Yvette Cedex, France, homepage: http://www.icsn.cnrs‐gif.fr/spip.php?article225
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15
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Odabachian Y, Tong S, Wang Q, Wang MX, Zhu J. Zinc Bromide Promoted Coupling of Isonitriles with Carboxylic Acids To Form 2,4,5-Trisubstituted Oxazoles. Angew Chem Int Ed Engl 2013; 52:10878-82. [DOI: 10.1002/anie.201305506] [Citation(s) in RCA: 78] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2013] [Indexed: 12/19/2022]
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16
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Odabachian Y, Tong S, Wang Q, Wang MX, Zhu J. Zinc Bromide Promoted Coupling of Isonitriles with Carboxylic Acids To Form 2,4,5-Trisubstituted Oxazoles. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201305506] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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17
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Gualtierotti JB, Schumacher X, Fontaine P, Masson G, Wang Q, Zhu J. Amidation of aldehydes and alcohols through α-iminonitriles and a sequential oxidative three-component Strecker reaction/thio-Michael addition/alumina-promoted hydrolysis process to access β-mercaptoamides from aldehydes, amines, and thiols. Chemistry 2012; 18:14812-9. [PMID: 23019046 DOI: 10.1002/chem.201202291] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2012] [Indexed: 12/27/2022]
Abstract
Mild and general alumina-promoted hydrolysis conditions for converting α-iminonitriles into carboxamides have been developed. In combination with the oxidative three-component Strecker reaction, the one-pot direct amidation of aldehydes and alcohols is reported. Subsequently, an Yb(OTf)(3)-catalyzed Michael addition of thiols to α,β-unsaturated α-iminonitriles is reported for the synthesis of β-mercapto-α-iminonitriles. The successful integration of an oxidative Strecker reaction, thio-Michael addition, and neutral-alumina-promoted hydrolysis of β-mercapto-α-iminonitriles into a three-component one-pot process allowed us to develop the direct conversion of amines, aldehydes, and thiols into β-mercaptoamides. All of these procedures were applicable to aromatic and aliphatic amines and aldehydes.
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Affiliation(s)
- Jean-Baptiste Gualtierotti
- Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne, EPFL-SB-ISIC-LSPN, BCH, Switzerland
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18
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Bouma MJ, Masson G, Zhu J. Exploiting the Divergent Reactivity of Isocyanoacetates: One-Pot Three-Component Synthesis of Functionalized Angular Furoquinolines. European J Org Chem 2011. [DOI: 10.1002/ejoc.201101567] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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19
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Rotstein BH, Mourtada R, Kelley SO, Yudin AK. Solvatochromic reagents for multicomponent reactions and their utility in the development of cell-permeable macrocyclic peptide vectors. Chemistry 2011; 17:12257-61. [PMID: 21932287 DOI: 10.1002/chem.201102096] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2011] [Indexed: 01/05/2023]
Affiliation(s)
- Benjamin H Rotstein
- Department of Chemistry, University of Toronto, Toronto, ON, M5H 3H5, Canada
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20
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Zhang C, Xu Z, Zhang L, Jiao N. Copper-catalyzed aerobic oxidative coupling of aryl acetaldehydes with anilines leading to α-ketoamides. Angew Chem Int Ed Engl 2011; 50:11088-92. [PMID: 21919176 DOI: 10.1002/anie.201105285] [Citation(s) in RCA: 220] [Impact Index Per Article: 16.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2011] [Indexed: 12/12/2022]
Affiliation(s)
- Chun Zhang
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Xue Yuan Rd. 38, Beijing 100191, China
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21
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Zhang C, Xu Z, Zhang L, Jiao N. Copper-Catalyzed Aerobic Oxidative Coupling of Aryl Acetaldehydes with Anilines Leading to α-Ketoamides. Angew Chem Int Ed Engl 2011. [DOI: 10.1002/ange.201105285] [Citation(s) in RCA: 76] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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22
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Lalli C, Bouma MJ, Bonne D, Masson G, Zhu J. Exploiting the divergent reactivity of α-isocyanoacetate: multicomponent synthesis of 5-alkoxyoxazoles and related heterocycles. Chemistry 2010; 17:880-9. [PMID: 21226103 DOI: 10.1002/chem.201002098] [Citation(s) in RCA: 72] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2010] [Indexed: 11/09/2022]
Abstract
A novel multicomponent synthesis of 5-alkoxyoxazoles, based on a new reactivity profile of α-isocyanoacetates, is described. Thus, simply heating a solution of amine, aldehyde, and α-(EWG-phenyl)-α-isocyanoacetate or α-(4-pyridyl)-α-isocyanoacetate (EWG=electron-withdrawing group) in toluene provided 5-alkoxyoxazoles in good to excellent yields. Reaction of the 5-alkoxyoxazoles with various α,β-unsaturated acyl chlorides led to the formation of epoxytetrahydropyrrolo[3,4-b]pyridin-5-ones by a domino N-acylation/Diels-Alder cycloaddition sequence. Subsequent fragmentation under basic conditions provided 6,7-dihydro-5H-pyrrolo[3,4-b]pyridin-5-ones. A four-component synthesis of the pyridin-5-one compounds, without isolation of the 5-alkoxyoxazole, was subsequently developed.
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Affiliation(s)
- Claudia Lalli
- Centre de Recherche de Gif, Institut de Chimie des Substances Naturelles CNRS, Avenue de la Terrasse, 91198 Gif-sur-Yvette Cedex, France
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23
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Chen Z, Yu X, Su M, Yang X, Wu J. Multicatalytic Tandem Reactions of 2-Alkynylbenzaldoximes with Isocyanides. Adv Synth Catal 2009. [DOI: 10.1002/adsc.200900442] [Citation(s) in RCA: 66] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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24
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Affiliation(s)
- Subhas Chandra Pan
- Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, 45470 Mülheim an der Ruhr, Germany
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25
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