1
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Zhang WW, Sha Q. B(C 6F 5) 3-Catalyzed Multicomponent Reactions of 2,3-Diketoesters, Amines, Allenes, and Nucleophiles: Synthesis of 2α-Functionalized Pyrroles. J Org Chem 2024; 89:12286-12297. [PMID: 39146254 DOI: 10.1021/acs.joc.4c01221] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/17/2024]
Abstract
An efficient B(C6F5)3-catalyzed multicomponent reaction of 2,3-diketoesters, amines, allenes, and nucleophiles was reported, which afforded 2α-functionalized pyrroles in moderate to good yields. The reaction features low catalyst loading, usage of a small amount of solvent, high atom economy, tunable installation of diverse functional groups at 2α-position, and water being formed as the byproduct. This is the first multicomponent reaction that combines vicinal tricarbonyl compounds with allenes.
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Affiliation(s)
- Wei-Wei Zhang
- Jiangsu Key Laboratory of Pesticide Science and Department of Chemistry, College of Sciences, Nanjing Agricultural University, 1 Weigang Road, Xuanwu, Nanjing 210095, P. R. China
| | - Qiang Sha
- Jiangsu Key Laboratory of Pesticide Science and Department of Chemistry, College of Sciences, Nanjing Agricultural University, 1 Weigang Road, Xuanwu, Nanjing 210095, P. R. China
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2
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Lu D, Lu S, Ding CH, Li X, Xu B. Synthesis of β-Carbonyl α-Iminoamides by Double Insertion of Isocyanides into Aldehydes. Org Lett 2024; 26:6335-6340. [PMID: 39046225 DOI: 10.1021/acs.orglett.4c01871] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/25/2024]
Abstract
An unprecedented trimethylsilyl trifluoromethanesulfonate (TMSOTf)-promoted selective double insertion of isocyanides into aldehydes was developed, providing an efficient protocol for synthetically challenging β-carbonyl α-iminoamides. The given approach is applicable for a diverse selection of readily accessible aldehydes, along with isocyanides serving as essential precursors for "amide" and "imine" scaffolds. The versatile transformations of the given products were demonstrated, and the pivotal intermediates for the plausible mechanism were identified.
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Affiliation(s)
- Di Lu
- Department of Chemistry, Shanghai University, Shanghai 200444, People's Republic of China
| | - Shaohang Lu
- Department of Chemistry, Shanghai University, Shanghai 200444, People's Republic of China
| | - Chang-Hua Ding
- Department of Chemistry, Shanghai Engineering Research Center of Organ Repair, Innovative Drug Research Center, Shanghai University, Shanghai 200444, People's Republic of China
| | - Xinyao Li
- Department of Chemistry, Shanghai University, Shanghai 200444, People's Republic of China
| | - Bin Xu
- Department of Chemistry, Affiliated Nantong Hospital of Shanghai University, Shanghai Engineering Research Center of Organ Repair, Innovative Drug Research Center, School of Medicine, Shanghai University, Shanghai 200444, People's Republic of China
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, People's Republic of China
- Joint International Research Laboratory of Biomaterials and Biotechnology in Organ Repair (Ministry of Education), Shanghai University, Shanghai 200444, People's Republic of China
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3
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Quan R, Li X, Wang Z, He Y, Wu H. Catalytic Asymmetric Cyclizative Rearrangement of Anilines and Vicinal Diketones to Access 2,2-Disubstituted Indolin-3-ones. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2402532. [PMID: 38655846 PMCID: PMC11220653 DOI: 10.1002/advs.202402532] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/11/2024] [Revised: 04/12/2024] [Indexed: 04/26/2024]
Abstract
The efficient synthesis of chiral 2,2-disubstituted indolin-3-ones is of great importance due to its significant synthetic and biological applications. However, catalytic enantioselective methods for de novo synthesis of such heterocycles remain scarce. Herein, a novel cyclizative rearrangement of readily available anilines and vicinal diketones for the one-step construction of enantioenriched 2,2-disubstituted indolin-3-ones is presented. The reaction proceeds through a self-sorted [3+2] heteroannulation/regioselective dehydration/1,2-ester shift process. Only chiral phosphoric acid is employed to promote the entire sequence and simplify the manipulation of this protocol. Various common aniline derivatives are successfully applied to asymmetric synthesis as 1,3-binuclephiles for the first time. Remarkably, the observed stereoselectivity is proposed to originate from an amine-directed regio- and enantioselective ortho-Csp2-H addition of the anilines to the ketones. A range of synthetic transformations of the resulting products are demonstrated as well.
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Affiliation(s)
- Rui Quan
- Shanghai Frontiers Science Center for Drug Target Identification and DeliveryNational Key Laboratory of Innovative Immunotherapy, and Shanghai Key Laboratory for Molecular Engineering of Chiral DrugsSchool of Pharmaceutical SciencesShanghai Jiao Tong University800 Dongchuan Road, MinhangShanghai200240China
| | - Xing‐Zi Li
- Shanghai Frontiers Science Center for Drug Target Identification and DeliveryNational Key Laboratory of Innovative Immunotherapy, and Shanghai Key Laboratory for Molecular Engineering of Chiral DrugsSchool of Pharmaceutical SciencesShanghai Jiao Tong University800 Dongchuan Road, MinhangShanghai200240China
| | - Zi‐Qi Wang
- Shanghai Frontiers Science Center for Drug Target Identification and DeliveryNational Key Laboratory of Innovative Immunotherapy, and Shanghai Key Laboratory for Molecular Engineering of Chiral DrugsSchool of Pharmaceutical SciencesShanghai Jiao Tong University800 Dongchuan Road, MinhangShanghai200240China
| | - Yu‐Ping He
- Shanghai Frontiers Science Center for Drug Target Identification and DeliveryNational Key Laboratory of Innovative Immunotherapy, and Shanghai Key Laboratory for Molecular Engineering of Chiral DrugsSchool of Pharmaceutical SciencesShanghai Jiao Tong University800 Dongchuan Road, MinhangShanghai200240China
- Department of ChemistryCollege of SciencesShanghai UniversityShanghai200444China
| | - Hua Wu
- Shanghai Frontiers Science Center for Drug Target Identification and DeliveryNational Key Laboratory of Innovative Immunotherapy, and Shanghai Key Laboratory for Molecular Engineering of Chiral DrugsSchool of Pharmaceutical SciencesShanghai Jiao Tong University800 Dongchuan Road, MinhangShanghai200240China
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4
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Li XZ, He YP, Wu H. Multicomponent Cyclizative 1,2-Rearrangement Enabled Enantioselective Construction of 2,2-Disubstituted Pyrrolinones. Angew Chem Int Ed Engl 2024; 63:e202317182. [PMID: 38150406 DOI: 10.1002/anie.202317182] [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: 11/12/2023] [Revised: 12/21/2023] [Accepted: 12/27/2023] [Indexed: 12/29/2023]
Abstract
The 1,2-rearrangement reaction is one of the most important approaches to construct carbon-carbon bonds in organic synthesis. However, the development of catalytic asymmetric 1,2-rearrangements is still far from mature and often suffers from problems such as complex substrates, single product structure, and lack of synthetic application. Multicomponent reaction has been recognized as a robust tool for the synthesis of diverse and tunable products from readily available starting material. Conceptionally and practically, the development of multicomponent asymmetric 1,2-rearrangements is highly desirable. In this regard, we report herein a three-component benzilic acid-type rearrangement of 2,3-diketoesters, aromatic amines and aldehydes for the asymmetric construction of synthetically challenging pyrrolinones bearing aza-quaternary stereocenters. To the best of our knowledge, this reaction represents the first example of organocatalyzed multicomponent asymmetric 1,2-rearrangements.
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Affiliation(s)
- Xing-Zi Li
- Shanghai Frontiers Science Center for Drug Target Identification and Delivery, and Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Pharmaceutical Sciences, Shanghai Jiao Tong University, 800 Dongchuan Road, Minhang District, Shanghai, 200240, China
| | - Yu-Ping He
- Shanghai Frontiers Science Center for Drug Target Identification and Delivery, and Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Pharmaceutical Sciences, Shanghai Jiao Tong University, 800 Dongchuan Road, Minhang District, Shanghai, 200240, China
| | - Hua Wu
- Shanghai Frontiers Science Center for Drug Target Identification and Delivery, and Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Pharmaceutical Sciences, Shanghai Jiao Tong University, 800 Dongchuan Road, Minhang District, Shanghai, 200240, China
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5
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Tian D, Li ZC, Sun ZH, He YP, Xu LP, Wu H. Catalytic Enantioselective Biltz Synthesis. Angew Chem Int Ed Engl 2023; 62:e202313797. [PMID: 37814442 DOI: 10.1002/anie.202313797] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2023] [Revised: 10/07/2023] [Accepted: 10/09/2023] [Indexed: 10/11/2023]
Abstract
The Biltz synthesis establishes straightforward access to 5,5-disubstituted (thio)hydantoins by combining a 1,2-diketone and a (thio)urea. Its appealing features include inherent atom and step economy together with the potential to generate structurally diverse products. However, control of the stereochemistry of this reaction has proven to be a daunting challenge. Herein, we describe the first example of enantioselective catalytic Biltz synthesis which affords more than 40 thiohydantoins with high stereo- and regio-control, irrespective of the symmetry of thiourea structure. A one pot synthesis of corresponding hydantoins is also documented. Remarkably, experimental studies and DFT calculations establish the reaction pathway and origin of stereoselectivity.
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Affiliation(s)
- Di Tian
- Shanghai Frontiers Science Center for Drug Target Identification and Delivery, Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Pharmaceutical Sciences, Shanghai Jiao Tong University, 800 Dongchuan Road, Minhang District, Shanghai, 200240, China
| | - Zhuo-Chen Li
- Shanghai Frontiers Science Center for Drug Target Identification and Delivery, Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Pharmaceutical Sciences, Shanghai Jiao Tong University, 800 Dongchuan Road, Minhang District, Shanghai, 200240, China
| | - Ze-Hua Sun
- School of Chemistry and Chemical Engineering, Shandong University of Technology, Zibo, 255000, Shandong, China
| | - Yu-Ping He
- Shanghai Frontiers Science Center for Drug Target Identification and Delivery, Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Pharmaceutical Sciences, Shanghai Jiao Tong University, 800 Dongchuan Road, Minhang District, Shanghai, 200240, China
| | - Li-Ping Xu
- School of Chemistry and Chemical Engineering, Shandong University, Jinan, 250100, Shandong, China
| | - Hua Wu
- Shanghai Frontiers Science Center for Drug Target Identification and Delivery, Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Pharmaceutical Sciences, Shanghai Jiao Tong University, 800 Dongchuan Road, Minhang District, Shanghai, 200240, China
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6
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Li XZ, He YP, Wu H. Zinc chloride-catalyzed cyclizative 1,2-rearrangement enables facile access to morpholinones bearing aza-quaternary carbons. Commun Chem 2023; 6:216. [PMID: 37805578 PMCID: PMC10560277 DOI: 10.1038/s42004-023-01016-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2023] [Accepted: 09/29/2023] [Indexed: 10/09/2023] Open
Abstract
Morpholines and morpholinones are important building blocks in organic synthesis and pharmacophores in medicinal chemistry, however, C3-disubstituted morpholines/morpholinones are extremely difficult to access. Here we show the ZnCl2-catalyzed cyclizative 1,2-rearrangement for the efficient synthesis of morpholinones bearing aza-quaternary stereocenters. A series of structurally diverse C3-disubstituted morpholin-2-ones which are difficultly accessible by existing methods were efficiently constructed from readily available two achiral linear compounds. Notably, mechanistic studies reveal that this reaction proceeds via an unusual sequence of direct formal [4 + 2] heteroannulation regioselectively delivering specific α-iminium/imine hemiacetals followed by a 1,2-esters or amides shift process, which is different from the reported mechanism of the aza-benzilic ester rearrangements.
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Affiliation(s)
- Xing-Zi Li
- Shanghai Frontiers Science Center for Drug Target Identification and Delivery, and Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Pharmaceutical Sciences, Shanghai Jiao Tong University, 800 Dongchuan Road, Minhang District, Shanghai, 200240, China
| | - Yu-Ping He
- Shanghai Frontiers Science Center for Drug Target Identification and Delivery, and Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Pharmaceutical Sciences, Shanghai Jiao Tong University, 800 Dongchuan Road, Minhang District, Shanghai, 200240, China
| | - Hua Wu
- Shanghai Frontiers Science Center for Drug Target Identification and Delivery, and Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Pharmaceutical Sciences, Shanghai Jiao Tong University, 800 Dongchuan Road, Minhang District, Shanghai, 200240, China.
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7
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De Angelis L, Pei C, Narro AL, Wherritt D, Koenigs RM, Doyle MP. Polyfunctionalization of vicinal carbon centers and synthesis of unsymmetric 1,2,3,4-tetracarbonyl compounds. Nat Commun 2023; 14:1109. [PMID: 36849502 PMCID: PMC9971237 DOI: 10.1038/s41467-023-36757-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Accepted: 02/14/2023] [Indexed: 03/01/2023] Open
Abstract
The synthesis and characterization of organic compounds with unusual atom or functional group connectivity is one of the main driving forces in the discovery of new synthetic methods that has raised the interest of chemists for many years. Polycarbonyl compounds are such compounds wherein multiple carbonyl groups are directly juxtaposed and influence each other's chemical reactivity. While 1,2-dicarbonyl or 1,2,3-tricarbonyl compounds are well-known in organic chemistry, the 1,2,3,4-tetracarbonyl motif remains barely explored. Herein, we report on the synthesis of such 1,2,3,4-tetracarbonyl compounds employing a synthetic strategy that involves C-nitrosation of enoldiazoacetates, while the diazo functional group remains untouched. This strategy not only leverages the synthesis of 1,2,3,4-tetracarbonyl compounds to an unprecedented level, it also accomplishes the synthesis of 1,2,3,4-tetracarbonyl compounds, wherein each carbonyl group is orthogonally masked. Combined experimental and theoretical studies provide an understanding of the reaction mechanism and rationalize the formation of such 1,2,3,4-tetracarbonyl compounds.
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Affiliation(s)
- Luca De Angelis
- grid.215352.20000000121845633Department of Chemistry, The University of Texas at San Antonio, San Antonio, TX USA
| | - Chao Pei
- grid.1957.a0000 0001 0728 696XRWTH Aachen University, Institute of Organic Chemistry, Landoltweg 1, 52074 Aachen, Germany
| | - Ana L. Narro
- grid.215352.20000000121845633Department of Chemistry, The University of Texas at San Antonio, San Antonio, TX USA
| | - Daniel Wherritt
- grid.215352.20000000121845633Department of Chemistry, The University of Texas at San Antonio, San Antonio, TX USA
| | - Rene M. Koenigs
- grid.1957.a0000 0001 0728 696XRWTH Aachen University, Institute of Organic Chemistry, Landoltweg 1, 52074 Aachen, Germany
| | - Michael P. Doyle
- grid.215352.20000000121845633Department of Chemistry, The University of Texas at San Antonio, San Antonio, TX USA
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8
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Wang B, Zhang GM, Zhang H, Wang JY. B(C 6F 5) 3-catalyzed oxidation of α-diazoesters using DMF and molecular oxygen as oxygen sources. RSC Adv 2022; 12:33584-33588. [PMID: 36505720 PMCID: PMC9682326 DOI: 10.1039/d2ra05739e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2022] [Accepted: 11/09/2022] [Indexed: 11/24/2022] Open
Abstract
A metal-free catalytic oxidation of α-diazoesters via a green environmental-friendly route was developed. The α-diazoesters were converted to α-ketoesters using DMF and molecular oxygen as oxygen sources and B(C6F5)3 as the catalyst, without any additives. This protocol has a broad adaptability of substrates and good compatibility with a range of functional groups, and it offers new insight into reactions catalyzed by B(C6F5)3.
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Affiliation(s)
- Bei Wang
- Department of Chemistry, Asymmetric Synthesis and Chiral Technology Key Laboratory of Sichuan Province, Xihua UniversityChengdu 610041P. R. China,Chengdu Institute of Organic Chemistry, Chinese Academy of SciencesChengdu 610041P. R. China,University of Chinese Academy of SciencesBeijing 100049P. R. China
| | - Guo-Min Zhang
- Department of Chemistry, Asymmetric Synthesis and Chiral Technology Key Laboratory of Sichuan Province, Xihua UniversityChengdu 610041P. R. China,Chengdu Institute of Organic Chemistry, Chinese Academy of SciencesChengdu 610041P. R. China,University of Chinese Academy of SciencesBeijing 100049P. R. China
| | - Hua Zhang
- Department of Chemistry, Asymmetric Synthesis and Chiral Technology Key Laboratory of Sichuan Province, Xihua UniversityChengdu 610041P. R. China,Chengdu Institute of Organic Chemistry, Chinese Academy of SciencesChengdu 610041P. R. China,University of Chinese Academy of SciencesBeijing 100049P. R. China
| | - Ji-Yu Wang
- Department of Chemistry, Asymmetric Synthesis and Chiral Technology Key Laboratory of Sichuan Province, Xihua UniversityChengdu 610041P. R. China,Chengdu Institute of Organic Chemistry, Chinese Academy of SciencesChengdu 610041P. R. China
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9
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Hooper AR, Oštrek A, Milian‐Lopez A, Sarlah D. Bioinspired Total Synthesis of Pyritide A2 through Pyridine Ring Synthesis. Angew Chem Int Ed Engl 2022; 61:e202212299. [PMID: 36123301 PMCID: PMC9827874 DOI: 10.1002/anie.202212299] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2022] [Indexed: 01/12/2023]
Abstract
Pyritides belong to the ribosomally synthesized and post-translationally modified peptide class of natural products that were recently genome-predicted and are structurally defined by unique pyridine-containing macrocycles. Inspired by their biosynthesis, proceeding through peptide modification and cycloaddition to form the heterocyclic core, we report the chemical synthesis of pyritide A2 involving pyridine ring synthesis from an amino acid precursor through aza-Diels-Alder reaction. This strategy permitted the preparation of the decorated pyridine core with an appended amino acid residue in two steps from a commercially available arginine derivative and secured pyritide A2 in ten steps. Moreover, the synthetic logic enables efficient preparation of different pyridine subunits associated with pyritides, allowing rapid and convergent access to this new class of natural products and analogues thereof.
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Affiliation(s)
- Annie R. Hooper
- Department of Chemistry and Carl R. Woese Institute for Genomic BiologyUniversity of Illinois at Urbana-ChampaignUrbanaIL 61801USA
| | - Andraž Oštrek
- Department of Chemistry and Carl R. Woese Institute for Genomic BiologyUniversity of Illinois at Urbana-ChampaignUrbanaIL 61801USA
- Department of ChemistryUniversity of PaviaViale Taramelli 1227100PaviaItaly
| | - Ana Milian‐Lopez
- Department of Chemistry and Carl R. Woese Institute for Genomic BiologyUniversity of Illinois at Urbana-ChampaignUrbanaIL 61801USA
| | - David Sarlah
- Department of Chemistry and Carl R. Woese Institute for Genomic BiologyUniversity of Illinois at Urbana-ChampaignUrbanaIL 61801USA
- Department of ChemistryUniversity of PaviaViale Taramelli 1227100PaviaItaly
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10
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Rhodium-Catalyzed Aerobic Conversion of 2-Diazo-1,3-dicarbonyls to Vicinal Tricarbonyl Compounds and Their In-Situ Stability Toward Oxidative Degradation. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.134521] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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11
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Beller MP, Koert U. Vicinal ketoesters – key intermediates in the total synthesis of natural products. Beilstein J Org Chem 2022; 18:1236-1248. [PMID: 36158171 PMCID: PMC9490073 DOI: 10.3762/bjoc.18.129] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2022] [Accepted: 08/30/2022] [Indexed: 11/23/2022] Open
Abstract
This review summarizes examples for the application of vicinal ketoesters such as α-ketoesters, mesoxalic esters, and α,β-diketoesters as key intermediates in the total synthesis of natural products utilizing their electrophilic keto group as reactive site. Suitable key reactions are, e.g., aldol additions, carbonyl ene reactions, Mannich reactions, and additions of organometallic reagents. The vicinal arrangement of carbonyl groups allows the stabilization of reactive conformations by chelation or dipole control.
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Affiliation(s)
- Marc Paul Beller
- Fachbereich Chemie, Philipps-Universität Marburg, Hans-Meerwein-Straße 4, 35032 Marburg, Germany
| | - Ulrich Koert
- Fachbereich Chemie, Philipps-Universität Marburg, Hans-Meerwein-Straße 4, 35032 Marburg, Germany
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12
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Facile three-component reactions for the synthesis of N-unsubstituted 1H-pyrrol-3(2H)-ones and base induced divergent N–H and C–C bond derivatizations. Tetrahedron 2022. [DOI: 10.1016/j.tet.2022.133038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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13
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Chen B, Crespi VH, Hoffmann R. Theoretical Studies of Furan and Thiophene Nanothreads: Structures, Cycloaddition Barriers, and Activation Volumes. J Am Chem Soc 2022; 144:9044-9056. [PMID: 35549167 DOI: 10.1021/jacs.2c01720] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
This theoretical study examines the formation, structure, and stability of two of the most ordered nanothreads produced yet, those derived from furan and thiophene. The energetic consequences and activation barriers of the first two steps of oligomerization via a Diels-Alder mechanism were examined. The ca. 20 GPa difference in the synthetic pressures (lower for furan) is explainable in terms of the greater loss of aromaticity by the thiophene. The effects of pressure on the reaction profiles, operating through a volume decrease along the reaction coordinate, are illustrated. The interesting option of polymerization proceeding in one or two directions opens up the possibility of polymers with opposing, cumulative dipole moments. The computed activation volumes are consistently more negative for furan, in accordance with the lower onset pressure of furan polymerization. The energetics of three ordered polymer structures were examined. The syn polymer, with all O/S atoms on the same side, if not allowed to distort, is at a high energy relative to the other two due to the O/S lone pair repulsion, understandably greater for S than for O at the 2.8/2.6 Å separation. Set free, the syn isomers curve or arch in two- or three-dimensional (helical) ways, whose energetics are traced in detail. The syn polymer can also stabilize itself by twisting into zig-zag or helical energy minima. The release of strain in a linear thread as the pressure is relaxed to 1 atm, with consequent thread curving, is a likely mechanism for the observed loss of the crystalline order in the polymer as it is returned to ambient pressure.
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Affiliation(s)
- Bo Chen
- Donostia International Physics Center, Paseo Manuel de Lardizabal, 4, Donostia-San Sebastian 20018, Spain.,Ikerbasque, Basque Foundation for Science, Plaza Euskadi 5, Bilbao 48009, Spain
| | - Vincent H Crespi
- Department of Chemistry, The Pennsylvania State University, University Park, Pennsylvania 16802, United States.,Department of Physics, The Pennsylvania State University, University Park, Pennsylvania 16802, United States.,Materials Research Institute, The Pennsylvania State University, University Park, Pennsylvania 16802, United States.,Department of Materials Science and Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
| | - Roald Hoffmann
- Baker Laboratory, Department of Chemistry and Chemical Biology, Cornell University, Ithaca, New York 14853, United States
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14
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Endo T, Yonekawa M, Sudo A. Synthesis of polymers containing vicinal tricarbonyl moiety and construction of reversible crosslinking–decrosslinking polymer system. POLYM INT 2021. [DOI: 10.1002/pi.6222] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Takeshi Endo
- Molecular Engineering Institute Kyushu Institute of Technology Fukuoka Japan
| | - Morio Yonekawa
- Research Division of Organic Materials Osaka Research Institute of Industrial Science and Technology Osaka Japan
| | - Atsushi Sudo
- Department of Applied Chemistry, Faculty of Science and Engineering Kindai University Osaka Japan
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15
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Wang Y, Cao X, Ji J, Cui X, Pi C, Zhao L, Wu Y. Water and fluorinated alcohol mediated/promoted tandem insertion/aerobic oxidation/bisindolylation under metal-free conditions: Easy access to bis(indolyl)methanes. CHINESE CHEM LETT 2021. [DOI: 10.1016/j.cclet.2020.12.026] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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16
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Kovač L, Črnugelj M, Roškar R, Trdan Lušin T, Časar Z. Understanding of cabotegravir degradation through isolation and characterization of key degradation products and kinetic studies. J Pharm Biomed Anal 2021; 201:114096. [PMID: 33957367 DOI: 10.1016/j.jpba.2021.114096] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2021] [Revised: 04/18/2021] [Accepted: 04/19/2021] [Indexed: 10/21/2022]
Abstract
Cabotegravir is a novel human immunodeficiency virus integrase enzyme inhibitor used for prevention and treatment of HIV infection. The combinational final dosage form, as extended release injection suspension in combination with rilpivirine and as cabotegravir tablets (for lead-in therapy), was recently approved in Canada, EU and in USA and is currently seeking approval also in other countries. The subject of this investigation was to study the degradation of cabotegravir under different stress conditions as per the International Council for Harmonization (ICH) guidelines. The drug substance was found to be stable in thermal, photolytic and basic stress conditions, but degraded under acidic and oxidative stress conditions. It was determined that four main degradation products of cabotegravir are formed in forced degradation studies. All four main degradation products were isolated using preparative chromatography and subjected to NMR and HRMS analysis in order to determine their structure. We proposed degradation pathways of cabotegravir under acidic stress conditions in solution based on the structure of isolated degradation products, cabotegravir degradation kinetic studies and degradation studies on two isolated key degradation products. Moreover, degradation pathway to predominant oxidation degradation product is proposed based on the adduct of cabotegravir and peroxide species, which was identified by LC-HRMS analysis. This is the first report to the best of our knowledge that describes characterized cabotegravir forced degradation impurities and provides insights into its degradation pathways.
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Affiliation(s)
- Lidija Kovač
- University of Ljubljana, Faculty of Pharmacy, Aškerčeva c. 7, SI-1000, Ljubljana, Slovenia; Lek Pharmaceuticals d.d., Sandoz Development Center Slovenia, Analytics Department, Verovškova ulica 57, SI-1526, Ljubljana, Slovenia
| | - Martin Črnugelj
- Lek Pharmaceuticals d.d., Sandoz Development Center Slovenia, Analytics Department, Verovškova ulica 57, SI-1526, Ljubljana, Slovenia
| | - Robert Roškar
- University of Ljubljana, Faculty of Pharmacy, Aškerčeva c. 7, SI-1000, Ljubljana, Slovenia
| | - Tina Trdan Lušin
- University of Ljubljana, Faculty of Pharmacy, Aškerčeva c. 7, SI-1000, Ljubljana, Slovenia; Lek Pharmaceuticals d.d., Sandoz Development Center Slovenia, Analytics Department, Verovškova ulica 57, SI-1526, Ljubljana, Slovenia
| | - Zdenko Časar
- University of Ljubljana, Faculty of Pharmacy, Aškerčeva c. 7, SI-1000, Ljubljana, Slovenia; Lek Pharmaceuticals d.d., Sandoz Development Center Slovenia, Analytics Department, Verovškova ulica 57, SI-1526, Ljubljana, Slovenia.
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17
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Hu W, Huang B, Niu B, Cai M. Recyclable heterogeneous gold(I)-catalyzed oxidation of internal acylalkynes: Practical access to vicinal tricarbonyls. Tetrahedron Lett 2021. [DOI: 10.1016/j.tetlet.2021.152953] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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18
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Liu HX, Ji F, Chen Y, Gao Y, Wang JK, Zhang MZ, Liu F, Sha Q. De Novo and Divergent Synthesis of Highly Functionalized Furans by Cascade Reactions of 2-Hydroxy-1,4-diones with Nucleophiles. Chemistry 2021; 27:5225-5229. [PMID: 33427337 DOI: 10.1002/chem.202005098] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2020] [Revised: 12/17/2020] [Indexed: 11/10/2022]
Abstract
Herein, a divergent synthesis of a variety of 2α- and 5α-substituted furan derivatives from 2-hydroxy-1,4-diones is reported. By using appropriate substrates and an acid catalyst, the reactions occurred selectively through cyclization/1,6-conjugate addition or cyclization/Friedel-Crafts-type cascade reactions. A broad range of nucleophilic reagents (>10 types for the 1,6-conjugate addition for 5α substitution and >20 types for the Friedel-Crafts-type cascade reaction for 2α substitution), including alcohols, amides, furan, thiophene, pyrrole, indole, phenols, and many others, can successfully participate in the reactions, providing a universal strategy for a diversity-oriented synthesis of α-substituted furan derivatives. Deuteriation experiments and DFT calculations were carried out to support the proposed reaction mechanisms. Antifungal activity experiments revealed that products with an indole or 4-hydroxycoumarin core substituted at the 2α position showed moderate activities against Rhizoctorzia solani and Botrytis cinerea, respectively.
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Affiliation(s)
- Hai-Xuan Liu
- Jiangsu Key Laboratory of Pesticide Science, and Department of, Chemistry, College of Sciences, Nanjing Agricultural University, 1 Weigang Road, Xuanwu District, Nanjing, 210095, P.R. China
| | - Fei Ji
- Department of Pharmaceutical Engineering, China Pharmaceutical University, 639 Longmian Avenue, Jiangning District, Nanjing, 211198, P.R. China
| | - Yu Chen
- School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, P.R. China
| | - Ya Gao
- Jiangsu Key Laboratory of Pesticide Science, and Department of, Chemistry, College of Sciences, Nanjing Agricultural University, 1 Weigang Road, Xuanwu District, Nanjing, 210095, P.R. China
| | - Jun-Ke Wang
- Jiangsu Key Laboratory of Pesticide Science, and Department of, Chemistry, College of Sciences, Nanjing Agricultural University, 1 Weigang Road, Xuanwu District, Nanjing, 210095, P.R. China
| | - Ming-Zhi Zhang
- Jiangsu Key Laboratory of Pesticide Science, and Department of, Chemistry, College of Sciences, Nanjing Agricultural University, 1 Weigang Road, Xuanwu District, Nanjing, 210095, P.R. China
| | - Fang Liu
- Jiangsu Key Laboratory of Pesticide Science, and Department of, Chemistry, College of Sciences, Nanjing Agricultural University, 1 Weigang Road, Xuanwu District, Nanjing, 210095, P.R. China
| | - Qiang Sha
- Jiangsu Key Laboratory of Pesticide Science, and Department of, Chemistry, College of Sciences, Nanjing Agricultural University, 1 Weigang Road, Xuanwu District, Nanjing, 210095, P.R. China
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19
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Liu R, Liu Q, Meng H, Ding H, Hao J, Ji Z, Yue H, Wei W. Metal-free visible-light-induced aerobic oxidation of α-diazoesters leading to α-ketoesters in air. Org Chem Front 2021. [DOI: 10.1039/d0qo01587c] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
A metal-free and visible-light-induced strategy has been established for the construction of α-ketoesters via aerobic oxidation of α-diazoesters with dioxygen in air at room temperature.
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Affiliation(s)
- Ruisheng Liu
- School of Chemistry and Chemical Engineering
- Qufu Normal University
- Qufu 273165
- China
| | - Qishun Liu
- School of Chemistry and Chemical Engineering
- Qufu Normal University
- Qufu 273165
- China
| | - Haoran Meng
- School of Chemistry and Chemical Engineering
- Qufu Normal University
- Qufu 273165
- China
| | - Hongyu Ding
- School of Chemistry and Chemical Engineering
- Qufu Normal University
- Qufu 273165
- China
| | - Jindong Hao
- School of Chemistry and Chemical Engineering
- Qufu Normal University
- Qufu 273165
- China
| | - Zhongyin Ji
- School of Chemistry and Chemical Engineering
- Qufu Normal University
- Qufu 273165
- China
| | - Huilan Yue
- Qinghai Provincial Key Laboratory of Tibetan Medicine Research and Key Laboratory of Tibetan Medicine Research
- Northwest Institute of Plateau Biology
- Chinese Academy of Sciences
- Qinghai 810008
- China
| | - Wei Wei
- School of Chemistry and Chemical Engineering
- Qufu Normal University
- Qufu 273165
- China
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20
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Yu T, Ji F, Huang D, Gao Y, Shi Z, Sha X, Xu J, You S, Zhang M, Sha Q. Facile synthesis of penta-substituted pyrroles and pyrrole-fused piperidin-4-ones via four component reactions of 2,3-diketoesters, anilines and enaminones. Org Chem Front 2021. [DOI: 10.1039/d1qo00921d] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Novel and facile multicomponent reactions of 2,3-diketoesters, anilines and enaminones were developed. A variety of penta-substituted pyrroles and pyrrole-fused piperidin-4-ones can be easily accessed via interception of cationic intermediates.
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Affiliation(s)
- Tongyan Yu
- Jiangsu Key Laboratory of Pesticide Science and Department of Chemistry, College of Sciences, Nanjing Agricultural University, 1 Weigang Road, Xuanwu District, Nanjing 210095, P. R. China
| | - Fei Ji
- Department of Pharmaceutical Engineering, China Pharmaceutical University, 639 Longmian Avenue, Jiangning District, Nanjing, 211198, P. R. China
| | - Daichuan Huang
- Jiangsu Key Laboratory of Pesticide Science and Department of Chemistry, College of Sciences, Nanjing Agricultural University, 1 Weigang Road, Xuanwu District, Nanjing 210095, P. R. China
| | - Ya Gao
- Jiangsu Key Laboratory of Pesticide Science and Department of Chemistry, College of Sciences, Nanjing Agricultural University, 1 Weigang Road, Xuanwu District, Nanjing 210095, P. R. China
| | - Zhaoping Shi
- Jiangsu Key Laboratory of Pesticide Science and Department of Chemistry, College of Sciences, Nanjing Agricultural University, 1 Weigang Road, Xuanwu District, Nanjing 210095, P. R. China
| | - Xuan Sha
- Department of Pharmaceutical Engineering, China Pharmaceutical University, 639 Longmian Avenue, Jiangning District, Nanjing, 211198, P. R. China
| | - Jiangyan Xu
- Jiangsu Key Laboratory of Pesticide Science and Department of Chemistry, College of Sciences, Nanjing Agricultural University, 1 Weigang Road, Xuanwu District, Nanjing 210095, P. R. China
| | - Siliang You
- State Key laboratory of Crop Genetics and Germplasm Enhancement, College of Agriculture, Nanjing Agricultural University, 1 Weigang Road, Xuanwu District, Nanjing 210095, P. R. China
| | - Mingzhi Zhang
- Jiangsu Key Laboratory of Pesticide Science and Department of Chemistry, College of Sciences, Nanjing Agricultural University, 1 Weigang Road, Xuanwu District, Nanjing 210095, P. R. China
| | - Qiang Sha
- Jiangsu Key Laboratory of Pesticide Science and Department of Chemistry, College of Sciences, Nanjing Agricultural University, 1 Weigang Road, Xuanwu District, Nanjing 210095, P. R. China
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21
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Kiyotaki K, Kayukawa T, Imayoshi A, Tsubaki K. Total Syntheses of FR-901235, Auxarthrones A-D, and Lamellicolic Anhydride. Org Lett 2020; 22:9220-9224. [PMID: 33196202 DOI: 10.1021/acs.orglett.0c03401] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
In our previous study, an unusual rearrangement reaction was discovered whereby dinaphthyl ketones with three hydroxy groups at restricted positions were transformed into a phenalenone ring and a benzene ring. Using the rearrangement as a key reaction, the first total syntheses of FR-901235 and auxarthrones A-D from an unstable triketone common intermediate are described. Furthermore, lamellicolic anhydride was synthesized from the triketone. This conversion is part of the putative biosynthetic pathway and was achieved experimentally for the first time.
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Affiliation(s)
- Kotaro Kiyotaki
- Graduate School for Life and Environmental Sciences, Kyoto Prefectural University 1-5 Shimogamo Hangi-cho, Sakyo-ku, Kyoto 606-8522 Japan
| | - Takuto Kayukawa
- Graduate School for Life and Environmental Sciences, Kyoto Prefectural University 1-5 Shimogamo Hangi-cho, Sakyo-ku, Kyoto 606-8522 Japan
| | - Ayumi Imayoshi
- Graduate School for Life and Environmental Sciences, Kyoto Prefectural University 1-5 Shimogamo Hangi-cho, Sakyo-ku, Kyoto 606-8522 Japan
| | - Kazunori Tsubaki
- Graduate School for Life and Environmental Sciences, Kyoto Prefectural University 1-5 Shimogamo Hangi-cho, Sakyo-ku, Kyoto 606-8522 Japan
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22
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Abstract
A practical Cu-catalyzed oxidation of α-diazoesters to α-ketoesters using molecular oxygen as an oxidant has been developed. Both electron-poor and electron-rich aryl α-diazoesters are suitable substrates and provide the α-ketoesters in good yields. In this oxidative system, α-diazo-β-ketoesters are also compatible as substrates but unexpectedly furnish α-ketoesters via C-C bond cleavage, rather than the vicinal tricarbonyl products.
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Affiliation(s)
- Changming Xu
- School of Chemical and Biological Engineering, Lanzhou Jiaotong University, Lanzhou 730070, China
| | - Yongchang Wang
- School of Chemical and Biological Engineering, Lanzhou Jiaotong University, Lanzhou 730070, China
| | - Lei Bai
- College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, China
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23
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Inokuma Y, Yoneda T, Ide Y, Yoshioka S. Aliphatic polyketones as classic yet new molecular ropes for structural diversity in organic synthesis. Chem Commun (Camb) 2020; 56:9079-9093. [PMID: 32602484 DOI: 10.1039/d0cc02977g] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Polyketone compounds play an important role in organic chemistry as a prominent source of reactivity and functionality. Their chemical properties vary widely depending on the ketone sequence in carbon chains. Although vicinal and β-polyketones have been used for more than 150 years, the recent development of new ketone sequences composed of alternating 1,3- and 1,4-diketones has demonstrated the further potential of polyketones as structurally flexible molecular ropes capable of derivatization to π-conjugated chromophores and molecular assemblies. In this Feature Article, we review the synthetic strategies and reactivities of polyketones with respect to their ketone sequence. Furthermore, recent research on polyketones with hybrid ketone sequences is also discussed, focussing on their structural diversity in chemical transformations including intramolecular cyclization and stereoselective oxidation.
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Affiliation(s)
- Yasuhide Inokuma
- Division of Applied Chemistry, Faculty of Engineering, Hokkaido University, Kita 13, Nishi 8 Kita-ku, Sapporo, Hokkaido 060-8628, Japan.
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24
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Affiliation(s)
- Hua Wu
- 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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25
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Lee K, Lee RS, Lee JS. Modified and environmentally friendly oxidation of phosphorane ylides to vicinal tricarbonyls using unsupported moist Oxone in dichloromethane. SYNTHETIC COMMUN 2020. [DOI: 10.1080/00397911.2020.1719422] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Kieseung Lee
- Department of Applied Chemistry & Department of Pharmaceutical Engineering, Woosuk University, Chonbuk, Republic of Korea
| | - Richard S. Lee
- School of Pharmacy, University of Southern California, Los Angeles, CA, USA
| | - Joanne S. Lee
- School of Pharmacy, University of the Pacific, Stockton, CA, USA
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26
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Wu H, Wang Q, Zhu J. Catalytic Enantioselective Benzilic Ester Rearrangement. Angew Chem Int Ed Engl 2020; 59:7261-7265. [PMID: 32078228 DOI: 10.1002/anie.202001258] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2020] [Indexed: 12/29/2022]
Abstract
We report the first examples of catalytic enantioselective benzilic ester rearrangement reaction. In the presence of a catalytic amount of Cu(OTf)2 and a chiral box ligand under mild conditions, reaction of 2,3-diketoesters with alcohols afforded structurally diverse α-aryl(alkyl) substituted-α-hydroxy malonates (tartronic esters) in good to excellent yields with high enantioselectivities. Preliminary mechanistic studies indicated that hemiketalization, rather than the dynamic kinetic resolution of hemiketal, was the enantiodetermining step under our reaction conditions.
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Affiliation(s)
- Hua Wu
- 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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27
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Zhang S, Li G, Li L, Deng X, Zhao G, Cui X, Tang Z. Alloxan-Catalyzed Biomimetic Oxidations with Hydrogen Peroxide or Molecular Oxygen. ACS Catal 2019. [DOI: 10.1021/acscatal.9b04508] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Shiqi Zhang
- Natural Products Research Center, Chengdu Institution of Biology, Chinese Academy of Science, Chengdu, Sichuan 610041, China
- School of Chemical Engineering, Sichuan University, Chengdu, Sichuan 610065, China
| | - Guangxun Li
- Natural Products Research Center, Chengdu Institution of Biology, Chinese Academy of Science, Chengdu, Sichuan 610041, China
| | - Ling Li
- Natural Products Research Center, Chengdu Institution of Biology, Chinese Academy of Science, Chengdu, Sichuan 610041, China
- School of Chemical Engineering, Sichuan University, Chengdu, Sichuan 610065, China
| | - Xiongfei Deng
- Natural Products Research Center, Chengdu Institution of Biology, Chinese Academy of Science, Chengdu, Sichuan 610041, China
- School of Chemical Engineering, Sichuan University, Chengdu, Sichuan 610065, China
| | - Gang Zhao
- School of Chemical Engineering, Sichuan University, Chengdu, Sichuan 610065, China
| | - Xin Cui
- Natural Products Research Center, Chengdu Institution of Biology, Chinese Academy of Science, Chengdu, Sichuan 610041, China
| | - Zhuo Tang
- Natural Products Research Center, Chengdu Institution of Biology, Chinese Academy of Science, Chengdu, Sichuan 610041, China
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28
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Affiliation(s)
- Yasuhide Inokuma
- Division of Applied Chemistry, Faculty of Engineering, Hokkaido University
- Institute for Chemical Reaction Design and Discovery (WPI-ICReDD), Hokkaido University
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29
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Manabe Y, Uesaka M, Yoneda T, Inokuma Y. Two-Step Transformation of Aliphatic Polyketones into π-Conjugated Polyimines. J Org Chem 2019; 84:9957-9964. [DOI: 10.1021/acs.joc.9b01119] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yumehiro Manabe
- Division of Applied Chemistry, Faculty of Engineering, Hokkaido University, Kita 13, Nishi 8, Kita-ku, Sapporo, Hokkaido 060-8628, Japan
| | - Mitsuharu Uesaka
- Division of Applied Chemistry, Faculty of Engineering, Hokkaido University, Kita 13, Nishi 8, Kita-ku, Sapporo, Hokkaido 060-8628, Japan
| | - Tomoki Yoneda
- Division of Applied Chemistry, Faculty of Engineering, Hokkaido University, Kita 13, Nishi 8, Kita-ku, Sapporo, Hokkaido 060-8628, Japan
| | - Yasuhide Inokuma
- Division of Applied Chemistry, Faculty of Engineering, Hokkaido University, Kita 13, Nishi 8, Kita-ku, Sapporo, Hokkaido 060-8628, Japan
- Institute for Chemical Reaction Design and Discovery (WPI-ICReDD), Hokkaido University, Kita 21, Nishi 10, Kita-ku, Sapporo, Hokkaido 001-0021, Japan
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30
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Dubovtsev AY, Dar’in DV, Kukushkin VY. Gold(I)-Catalyzed Oxidation of Acyl Acetylenes to Vicinal Tricarbonyls. Org Lett 2019; 21:4116-4119. [DOI: 10.1021/acs.orglett.9b01297] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Alexey Yu. Dubovtsev
- Institute of Chemistry, Saint Petersburg State University, Universitetskaya Nab. 7/9, 199034 Saint Petersburg, Russian Federation
| | - Dmitry V. Dar’in
- Institute of Chemistry, Saint Petersburg State University, Universitetskaya Nab. 7/9, 199034 Saint Petersburg, Russian Federation
| | - Vadim Yu. Kukushkin
- Institute of Chemistry, Saint Petersburg State University, Universitetskaya Nab. 7/9, 199034 Saint Petersburg, Russian Federation
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31
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Xin JF, Han XR, He FF, Ding YH. Global Isomeric Survey of Elusive Cyclopropanetrione: Unknown but Viable Isomers. Front Chem 2019; 7:193. [PMID: 31001519 PMCID: PMC6456661 DOI: 10.3389/fchem.2019.00193] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2019] [Accepted: 03/14/2019] [Indexed: 11/13/2022] Open
Abstract
Despite the great interest in energy storage application, stable neutral CnOn (n > 1) structures either in thermodynamics or kinetics have yet been largely limited due to the rather high tendency to release the very stable CO molecule. The neutral cyclopropanetrione (C3O3) cluster has long remained elusive since no isomer with sufficient kinetic stability has been found either experimentally or theoretically. In this work, we constructed the first global potential energy surface of singlet C3O3 at the CCSD(T)/aug-cc-pVTZ//B3LYP/aug-cc-pVTZ level, from which the kinetic stability of a wide range of C3O3 isomers can be determined by investigating their isomerization and fragmentation pathways. Amongst, a three-membered ring structure 01 is the global C3O3 isomer with a barrier of 10.6 kcal/mol at the sophisticated W1BD level. In particular, two carbene-type isomers 02 and 04 possess appreciable destruction barriers of 20.3 and 24.7 kcal/mol at W1BD, respectively. Thus, 02 and 04 can be useful building blocks for constructing larger high-energy density carbon-oxygen clusters. Moreover, with the carbene center, both might effectively functionalize various nano-materials while retaining the electrochemical active carbonyl and epoxyl moieties that are very desirable in alkali metal-ion batteries.
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Affiliation(s)
- Jing-Fan Xin
- Laboratory of Theoretical and Computational Chemistry, Institute of Theoretical Chemistry, Jilin University, Changchun, China.,Inner Mongolia Key Laboratory of Photoelectric Functional Materials, College of Chemistry and Chemical Engineering, Chifeng University, Chifeng, China
| | - Xiao-Ru Han
- Laboratory of Theoretical and Computational Chemistry, Institute of Theoretical Chemistry, Jilin University, Changchun, China
| | - Fei-Fei He
- Laboratory of Theoretical and Computational Chemistry, Institute of Theoretical Chemistry, Jilin University, Changchun, China
| | - Yi-Hong Ding
- Laboratory of Theoretical and Computational Chemistry, Institute of Theoretical Chemistry, Jilin University, Changchun, China
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32
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Sha Q, Liu H, Li Y. Trifluoroacetic Acid Catalyzed Cascade Reactions of 2,3‐Diketoesters with Cyclohexane‐1,3‐diones: Strategy Towards 4‐Hydroxybenzofuran Derivatives. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201900056] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Qiang Sha
- Jiangsu Key Laboratory of Pesticide Science and Department of Chemistry, College of SciencesNanjing Agricultural University Nanjing 210095 People's Republic of China
| | - Haixuan Liu
- Sanhome R&D CentreNanjing Sanhome Pharmaceutical Co., Ltd. Nanjing 211135 People's Republic of China
| | - Yuan Li
- Jiangsu Key Laboratory of Pesticide Science and Department of Chemistry, College of SciencesNanjing Agricultural University Nanjing 210095 People's Republic of China
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33
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Iyoda M, Ishita M, Ohkoshi M, Kuwatani Y, Otani H, Nishinaga T. Synthesis and Properties of a Tricyclic Hexaketone Monohydrate with Hexabutyl Side Chain. HETEROCYCLES 2019. [DOI: 10.3987/com-18-s(f)85] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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34
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Sha Q, Wang J, Doyle MP. Synthesis of 1 H-Pyrrol-3(2 H)-ones via Three-Component Reactions of 2,3-Diketo Esters, Amines, and Ketones. J Org Chem 2018; 83:11288-11297. [PMID: 30141636 DOI: 10.1021/acs.joc.8b01887] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
An efficient one-pot, three-component reaction of 2,3-diketo esters with amines and ketones has been developed for the synthesis of 1 H-pyrrol-3(2 H)-ones. By using trifluoroacetic acid (TFA) as the additive and acetonitrile (MeCN) as the solvent, this convenient method provides a library of 1 H-pyrrol-3(2 H)-ones in moderate to good yields. The simple protocol features readily available starting materials, a straightforward process, good functional group tolerance, and broad substrate scope.
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Affiliation(s)
- Qiang Sha
- Department of Chemistry, College of Sciences , Nanjing Agricultural University , Nanjing 210095 , P. R. China
| | - Junke Wang
- Department of Chemistry, College of Sciences , Nanjing Agricultural University , Nanjing 210095 , P. R. China
| | - Michael P Doyle
- Department of Chemistry , The University of Texas at San Antonio , San Antonio , Texas 78249 , United States
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35
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Zhang J, Wu YH, Wang JC, Du FS, Li ZC. Functional Poly(ester–amide)s with Tertiary Ester Linkages via the Passerini Multicomponent Polymerization of a Dicarboxylic Acid and a Diisocyanide with Different Electron-Deficient Ketones. Macromolecules 2018. [DOI: 10.1021/acs.macromol.8b01168] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Jian Zhang
- Beijing National Laboratory for Molecular Sciences (BNLMS), Key Laboratory of Polymer Chemistry & Physics of Ministry of Education, Department of Polymer Science & Engineering, College of Chemistry and Molecular Engineering, Center for Soft Matter Science and Engineering, Peking University, Beijing 100871, China
| | - Yu-Huan Wu
- Beijing National Laboratory for Molecular Sciences (BNLMS), Key Laboratory of Polymer Chemistry & Physics of Ministry of Education, Department of Polymer Science & Engineering, College of Chemistry and Molecular Engineering, Center for Soft Matter Science and Engineering, Peking University, Beijing 100871, China
| | - Jia-Chen Wang
- Beijing National Laboratory for Molecular Sciences (BNLMS), Key Laboratory of Polymer Chemistry & Physics of Ministry of Education, Department of Polymer Science & Engineering, College of Chemistry and Molecular Engineering, Center for Soft Matter Science and Engineering, Peking University, Beijing 100871, China
| | - Fu-Sheng Du
- Beijing National Laboratory for Molecular Sciences (BNLMS), Key Laboratory of Polymer Chemistry & Physics of Ministry of Education, Department of Polymer Science & Engineering, College of Chemistry and Molecular Engineering, Center for Soft Matter Science and Engineering, Peking University, Beijing 100871, China
| | - Zi-Chen Li
- Beijing National Laboratory for Molecular Sciences (BNLMS), Key Laboratory of Polymer Chemistry & Physics of Ministry of Education, Department of Polymer Science & Engineering, College of Chemistry and Molecular Engineering, Center for Soft Matter Science and Engineering, Peking University, Beijing 100871, China
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36
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37
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Foley C, Shaw A, Hulme C. Aza-Riley Oxidation of Ugi-Azide and Ugi-3CR Products toward Vicinal Tricarbonyl Amides: Two-Step MCR-Oxidation Methodology Accessing Functionalized α,β-Diketoamides and α,β-Diketotetrazoles. Org Lett 2018; 20:1275-1278. [PMID: 29466017 PMCID: PMC6424580 DOI: 10.1021/acs.orglett.7b03977] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
Direct oxidative deamination of glyoxal-derived Ugi-azide and Ugi three-component reaction products readily affords vicinal tricarbonyls (α,β-diketoamides) and α,β-diketotetrazoles with two diversity elements. This significant extension of our previously described multicomponent reaction-oxidative deamination methodology is proposed to proceed through a mechanistically distinct SeO2-mediated C-N oxidation derived from an active enol of α-amino-β-ketone systems, effectively an aza-Riley oxidation. This methodology accesses diverse VTC systems from prototypical amines, glyoxaldehydes, and isocyanide building blocks in a mere two steps.
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Affiliation(s)
- Christopher Foley
- Department of Chemistry & Biochemistry, College of Science, University of Arizona, Tucson, Arizona 85721, United States
| | - Arthur Shaw
- Division of Drug Discovery & Development, College of Pharmacy, University of Arizona, Tucson, Arizona 85721, United States
| | - Christopher Hulme
- Department of Chemistry & Biochemistry, College of Science, University of Arizona, Tucson, Arizona 85721, United States, Division of Drug Discovery & Development, College of Pharmacy, University of Arizona, Tucson, Arizona 85721, United States,Corresponding Author
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Yu Y, Sha Q, Cui H, Chandler KS, Doyle MP. Displacement of Dinitrogen by Oxygen: A Methodology for the Catalytic Conversion of Diazocarbonyl Compounds to Ketocarbonyl Compounds by 2,6-Dichloropyridine-N-oxide. Org Lett 2018; 20:776-779. [DOI: 10.1021/acs.orglett.7b03912] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yang Yu
- Department
of Chemistry, University of Texas at San Antonio, San Antonio, Texas 78249, United States
| | - Qiang Sha
- Department
of Chemistry, College of Sciences, Nanjing Agricultural University, Nanjing, China 210095
| | - Hui Cui
- Department
of Chemistry, University of Texas at San Antonio, San Antonio, Texas 78249, United States
| | - Kory S. Chandler
- Department
of Chemistry, University of Texas at San Antonio, San Antonio, Texas 78249, United States
| | - Michael P. Doyle
- Department
of Chemistry, University of Texas at San Antonio, San Antonio, Texas 78249, United States
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Kitanosono T, Tani S, Kobayashi S. Oxyfunctionalization of Active Methylene Compounds Using Sodium Chlorite in Water. ASIAN J ORG CHEM 2018. [DOI: 10.1002/ajoc.201700646] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Taku Kitanosono
- Department of Chemistry; School of Science; The University of Tokyo; Hongo Bunkyo-ku Tokyo 113-0033 Japan
| | - Shinki Tani
- Manufacturing Process Research Laboratory; Process Chemistry Research Institute, Research & Development Devision, Kumiai Chemical Industry Co., Ltd.; 2256 Nakanogo Fuji Shizuoka 421-3306 Japan
| | - Shū Kobayashi
- Department of Chemistry; School of Science; The University of Tokyo; Hongo Bunkyo-ku Tokyo 113-0033 Japan
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41
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Han X, Lei T, Yang XL, Zhao LM, Chen B, Tung CH, Wu LZ. Aerobic oxidation of β-dicarbonyls into vicinal tricarbonyls by Cu(II) salts for one-pot synthesis of quinoxalines. Tetrahedron Lett 2017. [DOI: 10.1016/j.tetlet.2017.03.071] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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42
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Selter L, Harms K, Koert U. Addition of Mixed (Alkenyl)dialkylzincates to Vicinal Diketo Esters. European J Org Chem 2017. [DOI: 10.1002/ejoc.201601598] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Lars Selter
- Fachbereich Chemie; Philipps-Universität Marburg; Hans-Meerwein-Straße 4 35043 Marburg Germany
| | - Klaus Harms
- Fachbereich Chemie; Philipps-Universität Marburg; Hans-Meerwein-Straße 4 35043 Marburg Germany
| | - Ulrich Koert
- Fachbereich Chemie; Philipps-Universität Marburg; Hans-Meerwein-Straße 4 35043 Marburg Germany
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Obi CD, Okoro CO. Synthesis of 5-(trifluoromethyl)cyclohexane-1,2,3-trione (cVTC): new trifluoromethyl building block. Tetrahedron Lett 2016. [DOI: 10.1016/j.tetlet.2016.10.043] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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44
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Ma F, Liu H, Chen J. Convenient method for the preparation of secondary α-ketoamides via aminocarbonylation of acid chlorides with carbamoylsilane. Tetrahedron Lett 2016. [DOI: 10.1016/j.tetlet.2016.10.040] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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45
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Huck L, González JF, de la Cuesta E, Menéndez JC. Three-component synthesis of highly functionalized aziridines containing a peptide side chain and their one-step transformation into β-functionalized α-ketoamides. Beilstein J Org Chem 2016; 12:1772-7. [PMID: 27559422 PMCID: PMC4979736 DOI: 10.3762/bjoc.12.166] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2016] [Accepted: 07/27/2016] [Indexed: 11/30/2022] Open
Abstract
A sequential three-component process is described, starting from 3-arylmethylene-2,5-piperazinediones and involving a one-pot sequence of reactions achieving regioselective opening of the 2,5-diketopiperazine ring and diastereoselective generation of an aziridine ring. This method allows the preparation of N-unprotected, trisubstituted aziridines bearing a peptide side chain under mild conditions. Their transformation into β-trifluoroacetamido-α-ketoamide and α,β-diketoamide frameworks was also achieved in a single step.
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Affiliation(s)
- Lena Huck
- Departmento de Química Orgánica y Farmacéutica, Facultad de Farmacia, Universidad Complutense, 28040 Madrid, Spain
| | - Juan F González
- Departmento de Química Orgánica y Farmacéutica, Facultad de Farmacia, Universidad Complutense, 28040 Madrid, Spain
| | - Elena de la Cuesta
- Departmento de Química Orgánica y Farmacéutica, Facultad de Farmacia, Universidad Complutense, 28040 Madrid, Spain
| | - J Carlos Menéndez
- Departmento de Química Orgánica y Farmacéutica, Facultad de Farmacia, Universidad Complutense, 28040 Madrid, Spain
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Yuki T, Yonekawa M, Matsumoto K, Sei Y, Tomita I, Endo T. Hemithioketal formation of vicinal tricarbonyl compound with thiols and their recovery. Tetrahedron 2016. [DOI: 10.1016/j.tet.2016.06.034] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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47
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Klose I, Misale A, Maulide N. Synthesis and Photocatalytic Reactivity of Vinylsulfonium Ylides. J Org Chem 2016; 81:7201-10. [PMID: 27398692 DOI: 10.1021/acs.joc.6b01073] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Although sulfur ylides are textbook reagents in organic synthesis, surprisingly little variation of substituents on sulfur is usually observed. In particular, vinylsulfonium ylides have been neglected so far. Herein, we present a study on their synthesis and reactivity, including interesting behavior under photocatalytic conditions.
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Affiliation(s)
- Immo Klose
- Institute of Organic Chemistry, University of Vienna , Währinger Strasse 38, 1090 Vienna, Austria
| | - Antonio Misale
- Institute of Organic Chemistry, University of Vienna , Währinger Strasse 38, 1090 Vienna, Austria
| | - Nuno Maulide
- Institute of Organic Chemistry, University of Vienna , Währinger Strasse 38, 1090 Vienna, Austria
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48
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Yuki T, Yonekawa M, Furusho Y, Sei Y, Tomita I, Endo T. Reversible capture and release of aromatic amines by vicinal tricarbonyl compound. Tetrahedron 2016. [DOI: 10.1016/j.tet.2016.03.093] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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49
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Upadhyaya HP. Dynamics of OH formation in the photodissociation of enolic-acetonylacetone at 193nm. J Photochem Photobiol A Chem 2016. [DOI: 10.1016/j.jphotochem.2015.11.021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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