1
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Mamontov A, Chang L, Dossmann H, Bertrand B, Dechoux L, Thorimbert S. Iron Catalyzed Dearomatization of Pyridines into Annelated Azepine Derivatives in a One-Step, Three-Component Reaction. Org Lett 2023; 25:256-260. [PMID: 36580358 DOI: 10.1021/acs.orglett.2c04088] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Commercially available Fe(TTP)Cl catalyzes three-component dearomative formal cycloaddition reactions between pyridines, diazo compounds, and coumalates. Diversely substituted annelated seven-membered N-heterocycles could be generated in less than 10 min in one step at room temperature. The reaction is compatible to gram scale. The extension to benzimidazoles in place of pyridines has been successfully demonstrated. The mechanism of this reaction has been carefully examined by computational studies that corroborate the observed regioselectivities.
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Affiliation(s)
- Alexander Mamontov
- Sorbonne Université, CNRS, Institut Parisien de Chimie Moléculaire (IPCM), F-75005 Paris, France
| | - Liang Chang
- Sorbonne Université, CNRS, Institut Parisien de Chimie Moléculaire (IPCM), F-75005 Paris, France
| | - Héloïse Dossmann
- Sorbonne Université, CNRS, Institut Parisien de Chimie Moléculaire (IPCM), F-75005 Paris, France
| | - Benoît Bertrand
- Sorbonne Université, CNRS, Institut Parisien de Chimie Moléculaire (IPCM), F-75005 Paris, France
| | - Luc Dechoux
- Sorbonne Université, CNRS, Institut Parisien de Chimie Moléculaire (IPCM), F-75005 Paris, France
| | - Serge Thorimbert
- Sorbonne Université, CNRS, Institut Parisien de Chimie Moléculaire (IPCM), F-75005 Paris, France
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2
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Romaniszyn M, Skrzyńska A, Dybowska J, Albrecht Ł. Organocatalytic Asymmetric Approach to γ,δ-Functionalization of 3-Cyano-4-styrylcoumarins via Bifunctional Catalysis. Org Lett 2022; 24:7722-7726. [PMID: 36252955 DOI: 10.1021/acs.orglett.2c02836] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A novel organocatalytic reaction cascade between 3-cyano-4-styrylcoumarins and 2-mercaptoacetophenones is described. It is based on stereocontrolled functionalization of cyanocoumarins proceeding in a sequence of thia-Michael/aldol/annulation reactions. This highly diastereo- and enantioselective reaction is realized by employing enantioselective bifunctional catalysis and exhibits a broad substrate scope and excellent functional group tolerance. The synthetic application involves the transformation of the imidoester group, thus opening access to biologically relevant coumarin and δ-lactone-fused products.
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Affiliation(s)
- Marta Romaniszyn
- Institute of Organic Chemistry, Lodz University of Technology, Żeromskiego 116, 90-924 Łódź, Poland
| | - Anna Skrzyńska
- Institute of Organic Chemistry, Lodz University of Technology, Żeromskiego 116, 90-924 Łódź, Poland
| | | | - Łukasz Albrecht
- Institute of Organic Chemistry, Lodz University of Technology, Żeromskiego 116, 90-924 Łódź, Poland
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3
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Omar YM, Santucci G, Afarinkia K. tert-Butyl(2-oxo-2 H-pyran-5-yl)carbamate as the First Chameleon Diene Bearing an Electron-Donating Substituent. Molecules 2022; 27:molecules27175666. [PMID: 36080432 PMCID: PMC9458009 DOI: 10.3390/molecules27175666] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2022] [Revised: 08/10/2022] [Accepted: 08/29/2022] [Indexed: 11/16/2022] Open
Abstract
The 2(H)-pyran-2-one bearing electron-donating tert-butylcarbamate (BocNH-) group at the 5- position is a “chameleon” diene and undergoes efficient Diels–Alder cycloadditions with alkene dienophiles with both electron-rich and electron-deficient substituents. Cycloadditions afford the 5-substituted bicyclic lactone cycloadducts regardless of the electronic nature of the dienophile. However, cycloadditions with electronically matched electron-deficient dienophiles proceed faster than those with electronically mismatched electron-rich dienophiles.
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Affiliation(s)
- Yasser M. Omar
- Institute of Cancer Therapeutics, University of Bradford, Bradford BD7 1DP, UK
- Department Pharmaceutical Organic Chemistry, Faculty of Pharmacy, Assiut University, Assiut 71526, Egypt
| | - Giulia Santucci
- Department Pharmaceutical Organic Chemistry, Faculty of Pharmacy, Assiut University, Assiut 71526, Egypt
| | - Kamyar Afarinkia
- Institute of Cancer Therapeutics, University of Bradford, Bradford BD7 1DP, UK
- School of Biomedical Sciences, University of West London, London W5 5RF, UK
- Correspondence:
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4
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Copper Catalyzed Inverse Electron Demand [4+2] Cycloaddition for the Synthesis of Oxazines. Catalysts 2022. [DOI: 10.3390/catal12050526] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
A copper catalyzed tandem CuAAC/ring cleavage/[4+2] annulation reaction of terminal ynones, sulfonyl azides, and imines has been developed to synthesize the functionalized oxazines under mild conditions. Particularly, the intermediate N-sulfonyl acylketenimines undergo cycloaddition of an inverse electron demand Diels–Alder reaction with imines and a series of 1,3-oxazine derivatives were obtained successfully in good yields.
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5
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Dobler D, Leitner M, Moor N, Reiser O. 2‐Pyrone – A Privileged Heterocycle and Widespread Motif in Nature. European J Org Chem 2021. [DOI: 10.1002/ejoc.202101112] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Daniel Dobler
- Institut für Organische Chemie Universität Regensburg Universitätsstr. 31 93053 Regensburg Germany
| | - Michael Leitner
- Institut für Organische Chemie Universität Regensburg Universitätsstr. 31 93053 Regensburg Germany
| | - Natalija Moor
- Institut für Organische Chemie Universität Regensburg Universitätsstr. 31 93053 Regensburg Germany
| | - Oliver Reiser
- Institut für Organische Chemie Universität Regensburg Universitätsstr. 31 93053 Regensburg Germany
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6
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Krieg SC, Grimmer J, Kramer P, Bolte M, Kelm H, Manolikakes G. Oxyenamides as Versatile Building Blocks for a Highly Stereoselective One-Pot Synthesis of the 1,3-Diamino-2-ol-Scaffold Containing Three Continuous Stereocenters. Angew Chem Int Ed Engl 2021; 60:23667-23671. [PMID: 34463410 PMCID: PMC8597051 DOI: 10.1002/anie.202109752] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2021] [Revised: 08/22/2021] [Indexed: 12/15/2022]
Abstract
A highly diastereoselective one-pot synthesis of the 1,3-diamino-2-alcohol unit bearing three continuous stereocenters is described. This method utilizes 2-oxyenamides as a novel type of building block for the rapid assembly of the 1,3-diamine scaffold containing an additional stereogenic oxygen functionality at the C2 position. A stereoselective preparation of the required (Z)-oxyenamides is reported as well.
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Affiliation(s)
- Sara-Cathrin Krieg
- Department of Chemistry, Technical University Kaiserslautern, Erwin-Schrödinger-Strasse Geb. 54, 67663, Kaiserslautern, Germany
| | - Jennifer Grimmer
- Department of Chemistry, Technical University Kaiserslautern, Erwin-Schrödinger-Strasse Geb. 54, 67663, Kaiserslautern, Germany
| | - Philipp Kramer
- Department of Chemistry, Technical University Kaiserslautern, Erwin-Schrödinger-Strasse Geb. 54, 67663, Kaiserslautern, Germany
| | - Michael Bolte
- Institute of Inorganic and Analytical Chemistry, Goethe University Frankfurt am Main, Max-von-Laue-Strasse 7, 60438, Frankfurt am Main, Germany
| | - Harald Kelm
- Department of Chemistry, Technical University Kaiserslautern, Erwin-Schrödinger-Strasse Geb. 54, 67663, Kaiserslautern, Germany
| | - Georg Manolikakes
- Department of Chemistry, Technical University Kaiserslautern, Erwin-Schrödinger-Strasse Geb. 54, 67663, Kaiserslautern, Germany
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7
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Krieg S, Grimmer J, Kramer P, Bolte M, Kelm H, Manolikakes G. Oxyenamide als vielseitige Bausteine für eine hochgradig stereoselektive Eintopf‐Synthese der 1,3‐Diamino‐2‐ol‐Einheit mit drei fortlaufenden Stereozentren. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202109752] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Sara‐Cathrin Krieg
- Fachbereich Chemie Technische Universität Kaiserslautern Erwin-Schrödinger-Straße, Geb. 54 67663 Kaiserslautern Deutschland
| | - Jennifer Grimmer
- Fachbereich Chemie Technische Universität Kaiserslautern Erwin-Schrödinger-Straße, Geb. 54 67663 Kaiserslautern Deutschland
| | - Philipp Kramer
- Fachbereich Chemie Technische Universität Kaiserslautern Erwin-Schrödinger-Straße, Geb. 54 67663 Kaiserslautern Deutschland
| | - Michael Bolte
- Institut für Anorganische und Analytische Chemie Goethe Universität Frankfurt am Main Max-von-Laue-Straße 7 60438 Frankfurt am Main Deutschland
| | - Harald Kelm
- Fachbereich Chemie Technische Universität Kaiserslautern Erwin-Schrödinger-Straße, Geb. 54 67663 Kaiserslautern Deutschland
| | - Georg Manolikakes
- Fachbereich Chemie Technische Universität Kaiserslautern Erwin-Schrödinger-Straße, Geb. 54 67663 Kaiserslautern Deutschland
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8
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Xavier T, Pichon C, Presset M, Le Gall E, Condon S. Efficient Preparation of Methyl 2‐Oxo‐3‐aryl (heteroaryl)‐2
H
‐pyran‐5‐carboxylate via Pd‐Catalyzed Negishi Coupling. European J Org Chem 2021. [DOI: 10.1002/ejoc.202100608] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Tania Xavier
- Université Paris-Est Créteil, CNRS Institut de Chimie et des Matériaux Paris-Est, UMR 7182 2-8 rue Henri Dunant 94320 Thiais France
| | - Christophe Pichon
- Université Paris-Est Créteil, CNRS Institut de Chimie et des Matériaux Paris-Est, UMR 7182 2-8 rue Henri Dunant 94320 Thiais France
| | - Marc Presset
- Université Paris-Est Créteil, CNRS Institut de Chimie et des Matériaux Paris-Est, UMR 7182 2-8 rue Henri Dunant 94320 Thiais France
| | - Erwan Le Gall
- Université Paris-Est Créteil, CNRS Institut de Chimie et des Matériaux Paris-Est, UMR 7182 2-8 rue Henri Dunant 94320 Thiais France
| | - Sylvie Condon
- Université Paris-Est Créteil, CNRS Institut de Chimie et des Matériaux Paris-Est, UMR 7182 2-8 rue Henri Dunant 94320 Thiais France
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9
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Shen LW, Li TT, You Y, Zhao JQ, Wang ZH, Yuan WC. Inverse Electron-Demand Aza-Diels-Alder Reaction of Cyclic Enamides with 1,2-Diaza-1,3-dienes in Situ Generated from α-Halogeno Hydrazones: Access to Fused Polycyclic Tetrahydropyridazine Derivatives. J Org Chem 2021; 86:11472-11481. [PMID: 34343003 DOI: 10.1021/acs.joc.1c00993] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
An efficient inverse electron-demand aza-Diels-Alder reaction of cyclic enamides and 1,2-diaza-1,3-dienes, which could be readily formed in situ from α-halogeno hydrazones and a base, has been successfully developed. With the developed approach, a wide range of fused polycyclic tetrahydropyridazines were smoothly obtained in up to 99% yield under benign reaction conditions. This reaction concept was also extended to acyclic enamide substrates for accessing 1,4,5,6-tetrahydropyridazines. A gram-scale experiment and further derivatizations of the polycyclic tetrahydropyridazine products were also conducted to verify the practicability of the methodology.
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Affiliation(s)
- Li-Wen Shen
- National Engineering Research Center of Chiral Drugs, Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu, 610041, China.,Institute for Advanced Study, Chengdu University, Chengdu 610106, China.,University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Ting-Ting Li
- National Engineering Research Center of Chiral Drugs, Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu, 610041, China.,Institute for Advanced Study, Chengdu University, Chengdu 610106, 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
| | - Zhen-Hua Wang
- Institute for Advanced Study, Chengdu University, Chengdu 610106, China
| | - Wei-Cheng Yuan
- Institute for Advanced Study, Chengdu University, Chengdu 610106, China
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10
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Sarkar R, Mukherjee S. Iridium-catalyzed enantioselective olefinic C(sp 2)-H allylic alkylation. Chem Sci 2021; 12:3070-3075. [PMID: 34164076 PMCID: PMC8179414 DOI: 10.1039/d0sc06208a] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2020] [Revised: 02/11/2021] [Accepted: 01/14/2021] [Indexed: 12/14/2022] Open
Abstract
The first iridium-catalyzed enantioselective olefinic C(sp2)-H allylic alkylation is developed in cooperation with Lewis base catalysis. This reaction, catalyzed by cinchonidine and an in situ generated cyclometalated Ir(i)/phosphoramidite complex, makes use of the latent enolate character of an α,β-unsaturated carbonyl compound, namely coumalate ester, to introduce an allyl group at its α-position in a branched-selective manner in moderate to good yield with good to excellent enantioselectivities (up to 98 : 2 er).
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Affiliation(s)
- Rahul Sarkar
- Department of Organic Chemistry, Indian Institute of Science Bangalore 560 012 India +91-80-2360-0529 +91-80-2293-2850
| | - Santanu Mukherjee
- Department of Organic Chemistry, Indian Institute of Science Bangalore 560 012 India +91-80-2360-0529 +91-80-2293-2850
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11
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Huang G, Kouklovsky C, Torre A. Inverse‐Electron‐Demand Diels–Alder Reactions of 2‐Pyrones: Bridged Lactones and Beyond. Chemistry 2021; 27:4760-4788. [DOI: 10.1002/chem.202003980] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Indexed: 12/12/2022]
Affiliation(s)
- Guanghao Huang
- Université Paris-Saclay CNRS Institut de Chimie Moléculaire et des Matériaux d'Orsay (ICMMO) 15, rue Georges Clémenceau 91405 Orsay Cedex France
| | - Cyrille Kouklovsky
- Université Paris-Saclay CNRS Institut de Chimie Moléculaire et des Matériaux d'Orsay (ICMMO) 15, rue Georges Clémenceau 91405 Orsay Cedex France
| | - Aurélien Torre
- Université Paris-Saclay CNRS Institut de Chimie Moléculaire et des Matériaux d'Orsay (ICMMO) 15, rue Georges Clémenceau 91405 Orsay Cedex France
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12
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Li NK, Sun BB, Chen JB, Yang HD, Wang BL, Yu JQ, Wang XW, Wang Z. Box-copper catalyzed asymmetric inverse-electron-demand oxa-hetero-Diels–Alder reaction for efficient synthesis of spiro pyranyl-oxindole derivatives. Org Chem Front 2021. [DOI: 10.1039/d0qo01407a] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
A chiral Box/Cu catalyzed asymmetric IEDDA reaction between isatin-derived β,γ-unsaturated α-ketoesters and electron-rich olefins was developed, which provided chiral spiro oxindole-pyrans in excellent yields with excellent stereoselectivities.
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Affiliation(s)
- Nai-Kai Li
- Key Laboratory of Organic Synthesis of Jiangsu Province
- College of Chemistry
- Chemical Engineering and Materials Science Soochow University
- Suzhou 215123
- China
| | - Bing-Bing Sun
- Key Laboratory of Organic Synthesis of Jiangsu Province
- College of Chemistry
- Chemical Engineering and Materials Science Soochow University
- Suzhou 215123
- China
| | - Jun-Bo Chen
- Key Laboratory of Organic Synthesis of Jiangsu Province
- College of Chemistry
- Chemical Engineering and Materials Science Soochow University
- Suzhou 215123
- China
| | - Hao-Di Yang
- Key Laboratory of Organic Synthesis of Jiangsu Province
- College of Chemistry
- Chemical Engineering and Materials Science Soochow University
- Suzhou 215123
- China
| | - Bai-Lin Wang
- Key Laboratory of Organic Synthesis of Jiangsu Province
- College of Chemistry
- Chemical Engineering and Materials Science Soochow University
- Suzhou 215123
- China
| | - Jie-Qiang Yu
- Key Laboratory of Organic Synthesis of Jiangsu Province
- College of Chemistry
- Chemical Engineering and Materials Science Soochow University
- Suzhou 215123
- China
| | - Xing-Wang Wang
- Key Laboratory of Organic Synthesis of Jiangsu Province
- College of Chemistry
- Chemical Engineering and Materials Science Soochow University
- Suzhou 215123
- China
| | - Zheng Wang
- State Key Laboratory of Organometallic Chemistry
- Center for Excellence in Molecular Synthesis
- Shanghai Institute of Organic Chemistry
- Chinese Academy of Sciences
- Shanghai 200032
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13
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Albrecht Ł, Saktura M, Frankowski S, Joachim B. Aminocatalytic Synthesis of Uracil Derivatives Bearing a Bicyclo[2.2.2]octane Scaffold via a Doubly Cycloadditive Reaction Cascade. SYNTHESIS-STUTTGART 2020. [DOI: 10.1055/s-0040-1707313] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
AbstractAminocatalytic synthesis of highly enantiomerically enriched uracil derivatives bearing a bicyclo[2.2.2]octane scaffold is described. The developed strategy utilizes 1,3,6-trimethyl-5-formyluracil and α,β-unsaturated aldehydes as starting materials and has been realized employing various aminocatalytic activation strategies operating in a synergistic manner. The reaction cascade can be described as doubly cycloadditive as it consists of two consecutive Diels–Alder cycloadditions allowing for a facile construction of the bicyclo[2.2.2]octane scaffold. Notably, both steps proceed with dearomatization of the partially aromatic uracil moiety. Excellent stereoselectivity of the reaction cascade is ensured by the use of 2-(diphenylmethyl)pyrrolidine as aminocatalyst.
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14
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Kaur J, Kaur BP, Chimni SS. Recent advances in the catalytic synthesis of 3-aminooxindoles: an update. Org Biomol Chem 2020; 18:4692-4708. [DOI: 10.1039/d0ob00777c] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
3-Substituted-3-aminooxindoles are versatile scaffolds and these motifs constitute the core structure of number of natural products and biologically active compounds.
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Affiliation(s)
- Jasneet Kaur
- Post-Graduate Department of Chemistry
- Khalsa College Amritsar
- India
| | - Banni Preet 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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