1
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Paroi B, Pegu C, Mane MV, Patil NT. Gold-Catalyzed Arylative Cope Rearrangement. Angew Chem Int Ed Engl 2024:e202406936. [PMID: 38769939 DOI: 10.1002/anie.202406936] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2024] [Revised: 05/14/2024] [Accepted: 05/20/2024] [Indexed: 05/22/2024]
Abstract
Cope rearrangements have garnered significant attention owing to their ability to undergo structural reorganization in stereoselective manner. While substantial advances have been achieved over decades, these rearrangements remained applicable exclusively to parent 1,5-hexadienes. Herein, we disclose the gold-catalyzed arylative Cope rearrangement of 1,6-heptadienes via a cyclization-induced [3,3]-rearrangement employing ligand-enabled gold redox catalysis. Detailed mechanistic investigations including several control experiments, cross-over experiment, HRMS analysis, 31P NMR and DFT studies have been performed to underpin the mechanism.
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Affiliation(s)
- Bidisha Paroi
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhopal Bypass Road, Bhauri, Bhopal-, 462 066, India
| | - Chayanika Pegu
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhopal Bypass Road, Bhauri, Bhopal-, 462 066, India
| | - Manoj V Mane
- Centre for Nano and Material Science, Jain (Deemed-to-be University), Jain Global Campus Kanakapura, Bangalore, Karnataka-, 562112, India
| | - Nitin T Patil
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhopal Bypass Road, Bhauri, Bhopal-, 462 066, India
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2
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Yu N, Lv JF, He SM, He KC, Zheng WH, Zhou YQ, Jiang K, Pan XC, Wei Y. Modular Assembly of 2-Aminoaniline Derivatives by Merging Hydroxylamine-Passerini and Hetero-Cope Rearrangement. Org Lett 2024; 26:1358-1363. [PMID: 38345019 DOI: 10.1021/acs.orglett.3c04270] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/24/2024]
Abstract
A metal-free three-component protocol that combines a hydroxylamine-Passerini reaction and hetero-Cope rearrangement was realized, which enables the modular assembly of a wide range of structurally new and interesting 2-aminoanilines bearing an α-hydroxyamide substructure.
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Affiliation(s)
- Ning Yu
- Key Laboratory of Applied Chemistry of Chongqing Municipality, School of Chemistry and Chemical Engineering, Southwest University, Chongqing, 400715, China
| | - Jing-Fang Lv
- Key Laboratory of Applied Chemistry of Chongqing Municipality, School of Chemistry and Chemical Engineering, Southwest University, Chongqing, 400715, China
| | - Shi-Mei He
- Key Laboratory of Applied Chemistry of Chongqing Municipality, School of Chemistry and Chemical Engineering, Southwest University, Chongqing, 400715, China
| | - Kui-Cheng He
- Key Laboratory of Applied Chemistry of Chongqing Municipality, School of Chemistry and Chemical Engineering, Southwest University, Chongqing, 400715, China
| | - Wei-Hao Zheng
- Key Laboratory of Applied Chemistry of Chongqing Municipality, School of Chemistry and Chemical Engineering, Southwest University, Chongqing, 400715, China
| | - Yu-Qiang Zhou
- Key Laboratory of Applied Chemistry of Chongqing Municipality, School of Chemistry and Chemical Engineering, Southwest University, Chongqing, 400715, China
| | - Kun Jiang
- Key Laboratory of Applied Chemistry of Chongqing Municipality, School of Chemistry and Chemical Engineering, Southwest University, Chongqing, 400715, China
| | - Xi-Chun Pan
- College of Pharmacy, Army Medical University, Chongqing, 400038, China
| | - Ye Wei
- Key Laboratory of Applied Chemistry of Chongqing Municipality, School of Chemistry and Chemical Engineering, Southwest University, Chongqing, 400715, China
- College of Chemistry and Chemical Engineering, Neijiang Normal University, Neijiang, 641112, China
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3
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Obydennik AY, Titov AA, Listratova AV, Borisova TN, Sokolova IL, Rybakov VB, Van der Eycken EV, Voskressensky LG, Varlamov AV. Divergent and Nucleophile-Assisted Rearrangement in the Construction of Pyrrolo[2,1-b][3]benzazepine and Pyrido[2,1-a]isoquinoline Scaffolds. Chemistry 2024; 30:e202302919. [PMID: 37864779 DOI: 10.1002/chem.202302919] [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: 09/07/2023] [Revised: 10/12/2023] [Accepted: 10/20/2023] [Indexed: 10/23/2023]
Abstract
Under microwave (MW) irradiation at 150 °C in toluene and in the presence of nucleophiles (DMAP, triphenylphosphine and tetrahydrothiophene) 1-substituted 1-ethynyl-2-vinyldi- and tetrahydroisoquinolines undergo [3,3]-sigmatropic rearrangement providing pyrrolo[2,1-b][3]benzazepines in good yields. The replacement of toluene with acetonitrile directs the rearrangement towards the formation of 7,11b-dihydro-6H-pyrido[2,1-a]isoquinolines.
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Affiliation(s)
- Arina Y Obydennik
- Organic Chemistry Department, Science Faculty, Рeoples' Friendship University of Russia (RUDN University), 6 Miklukho-Maklaya St, Moscow, 117198, Russian Federation
| | - Alexander A Titov
- Organic Chemistry Department, Science Faculty, Рeoples' Friendship University of Russia (RUDN University), 6 Miklukho-Maklaya St, Moscow, 117198, Russian Federation
| | - Anna V Listratova
- Organic Chemistry Department, Science Faculty, Рeoples' Friendship University of Russia (RUDN University), 6 Miklukho-Maklaya St, Moscow, 117198, Russian Federation
| | - Tatiana N Borisova
- Organic Chemistry Department, Science Faculty, Рeoples' Friendship University of Russia (RUDN University), 6 Miklukho-Maklaya St, Moscow, 117198, Russian Federation
| | - Irina L Sokolova
- Organic Chemistry Department, Science Faculty, Рeoples' Friendship University of Russia (RUDN University), 6 Miklukho-Maklaya St, Moscow, 117198, Russian Federation
| | - Victor B Rybakov
- Department of Chemistry, Lomonosov Moscow State University, Leninskie Gory, 1-3, Moscow, 119991, Russian Federation
| | - Erik V Van der Eycken
- Organic Chemistry Department, Science Faculty, Рeoples' Friendship University of Russia (RUDN University), 6 Miklukho-Maklaya St, Moscow, 117198, Russian Federation
- Laboratory for Organic & Microwave-Assisted Chemistry (LOMAC), Department of Chemistry, University of Leuven (KU Leuven), Celestijnenlaan 200F, Leuven, 3001, Belgium
| | - Leonid G Voskressensky
- Organic Chemistry Department, Science Faculty, Рeoples' Friendship University of Russia (RUDN University), 6 Miklukho-Maklaya St, Moscow, 117198, Russian Federation
| | - Alexey V Varlamov
- Organic Chemistry Department, Science Faculty, Рeoples' Friendship University of Russia (RUDN University), 6 Miklukho-Maklaya St, Moscow, 117198, Russian Federation
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4
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Badmus F, Thombal RS, Philkhana SC, Malone JA, Bailey CE, Armendariz-Gonzalez E, Mureka EW, Locicero CM, Fronczek FR, Kartika R. Directing the Stereoselectivity of the Claisen Rearrangement to Form Cyclic Ketones with Full Substitution at the α-Positions. Org Lett 2023; 25:7622-7627. [PMID: 37830497 PMCID: PMC10616857 DOI: 10.1021/acs.orglett.3c02752] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2023] [Indexed: 10/14/2023]
Abstract
We report an enantioselective synthesis of cyclic ketones with full substitutions at the α-positions in a highly diastereoselective manner. Our method is achieved by subjecting substrate motifs in 2-allyloxyenones to chiral organomagnesium reagents, which trigger the Claisen rearrangement upon direct 1,2-carbonyl addition. The observed diastereoselectivity of the allyl migration is proposed to originate from the intramolecular chelation of the magnesium alkoxide to the allyloxy moiety.
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Affiliation(s)
- Fatimat
O. Badmus
- Department of Chemistry, Louisiana State University, 232 Choppin Hall, Baton
Rouge, Louisiana 70803, United States
| | | | | | - Joshua A. Malone
- Department of Chemistry, Louisiana State University, 232 Choppin Hall, Baton
Rouge, Louisiana 70803, United States
| | - Christian E. Bailey
- Department of Chemistry, Louisiana State University, 232 Choppin Hall, Baton
Rouge, Louisiana 70803, United States
| | | | - Edward W. Mureka
- Department of Chemistry, Louisiana State University, 232 Choppin Hall, Baton
Rouge, Louisiana 70803, United States
| | - Cale M. Locicero
- Department of Chemistry, Louisiana State University, 232 Choppin Hall, Baton
Rouge, Louisiana 70803, United States
| | - Frank R. Fronczek
- Department of Chemistry, Louisiana State University, 232 Choppin Hall, Baton
Rouge, Louisiana 70803, United States
| | - Rendy Kartika
- Department of Chemistry, Louisiana State University, 232 Choppin Hall, Baton
Rouge, Louisiana 70803, United States
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5
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Eronen A, Nieger M, Kajander TA, Repo T. Stereospecific Synthesis of Cyclohexenone Acids by [3,3]-Sigmatropic Rearrangement Route. J Org Chem 2023; 88:12914-12923. [PMID: 37656942 PMCID: PMC10507681 DOI: 10.1021/acs.joc.3c00757] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Indexed: 09/03/2023]
Abstract
Herein we report a modular synthetic method for the preparation of diaryl-substituted cyclohexenone acids starting from phenyl pyruvate and suitable enones. When the reaction is carried out in alkaline tert-butanol or toluene solutions in microwave-assisted conditions mainly anti configuration products are obtained with up to 86% isolated yield. However, when the reaction is carried out in alkaline water, a mixture of products with anti and syn conformations is obtained with up to 98% overall isolated yield. Mechanistically the product with anti conformation forms by a hemiketal-oxy-Cope type [3,3]-sigmatropic rearrangement-intramolecular aldol condensation route and syn product by an intermolecular aldol condensation-electrocyclization (disrotatory type) route.
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Affiliation(s)
- Aleksi Eronen
- Department
of Chemistry, University of Helsinki, PO Box 55 (A. I. Virtasen aukio
1), 00014, Helsinki, Finland
| | - Martin Nieger
- Department
of Chemistry, University of Helsinki, PO Box 55 (A. I. Virtasen aukio
1), 00014, Helsinki, Finland
| | - Tommi A. Kajander
- Institute
of Biotechnology, University of Helsinki, PO Box 65 (Viikinkaari 1), 00014, Helsinki, Finland
| | - Timo Repo
- Department
of Chemistry, University of Helsinki, PO Box 55 (A. I. Virtasen aukio
1), 00014, Helsinki, Finland
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6
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Paola EL, Borum A, Podunavac M, Zakarian A. Stereoselective Synthesis of α-Fluoro Carboxylic Acids by Ireland-Claisen Rearrangement. Org Lett 2023; 25:6167-6171. [PMID: 37590527 DOI: 10.1021/acs.orglett.3c01276] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/19/2023]
Abstract
Stereoselective synthesis of α-fluoro carboxylic acids by the Ireland-Claisen rearrangement can provide a straightforward approach to this class of compounds. We report a systematic investigation of base-dependent stereocontrol in the Ireland-Claisen rearrangement of α-fluoro esters. For substrates with various substitution patterns, the use of KN(SiMe3)2 in toluene afforded rearrangement products corresponding to the (Z)-enolate intermediate with a practically useful diastereoselectivity and yield. In contrast, lower yields and diastereoselectivity were consistently observed with the use of lithium diisopropylamide (LDA) in tetrahydrofuran (THF).
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Affiliation(s)
- Elena L Paola
- Department of Chemistry and Biochemistry, University of California, Santa Barbara, California 93106, United States
| | - Alana Borum
- Department of Chemistry and Biochemistry, University of California, Santa Barbara, California 93106, United States
| | - Maša Podunavac
- Department of Chemistry and Biochemistry, University of California, Santa Barbara, California 93106, United States
| | - Armen Zakarian
- Department of Chemistry and Biochemistry, University of California, Santa Barbara, California 93106, United States
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7
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Barrett RRG, Campbell DA, Gleason JL. An Organocatalytic Oxy-Cope/Michael Cascade Reaction. Org Lett 2023; 25:777-781. [PMID: 36701675 DOI: 10.1021/acs.orglett.2c04269] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Ethyl diazepane carboxylate catalyzes the oxy-Cope rearrangement of 4-hydroxy- and 4-alkoxy-1,5-hexadiene-2-carboxaldehydes via iminium ion activation. The resulting intermediate undergoes an intramolecular Michael reaction to furnish cyclopentane-containing products. The reaction proceeds with a range of substrates, including both cyclic and acyclic substrates, and tolerates substitution on the vinyl substituent. Substrates fused on a cycloalkane framework undergo net ring expansion/cyclopentannulation with a high degree of stereocontrol via chairlike transition states. The reaction extends iminium organocatalysis to the oxy-Cope rearrangement, embedded within a complexity-generating cascade transformation.
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Affiliation(s)
- Ryan R G Barrett
- Department of Chemistry, McGill University, 801 Sherbrooke West, Montreal, QC H3A 0B8, Canada
| | - Donald A Campbell
- Department of Chemistry, McGill University, 801 Sherbrooke West, Montreal, QC H3A 0B8, Canada
| | - James L Gleason
- Department of Chemistry, McGill University, 801 Sherbrooke West, Montreal, QC H3A 0B8, Canada
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8
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Reshuffle Bonds by Ball Milling: A Mechanochemical Protocol for Charge-Accelerated Aza-Claisen Rearrangements. Molecules 2023; 28:molecules28020807. [PMID: 36677865 PMCID: PMC9860570 DOI: 10.3390/molecules28020807] [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: 12/09/2022] [Revised: 01/02/2023] [Accepted: 01/07/2023] [Indexed: 01/15/2023] Open
Abstract
This study presents the development of a mechanochemical protocol for a charge-accelerated aza-Claisen rearrangement. The protocol waives the use of commonly applied transition metals, ligands, or pyrophoric Lewis acids, e.g., AlMe3. Based on (heterocyclic) tertiary allylamines and acyl chlorides, the desired tertiary amides were prepared in yields ranging from 17% to 84%. Moreover, the same protocol was applied for a Belluš-Claisen-type rearrangement resulting in the synthesis of a 9-membered lactam without further optimization.
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9
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Wang L, Zhou Y, Su Z, Zhang F, Cao W, Liu X, Feng X. [3,3]-Sigmatropic Rearrangements of Naphthyl 1-Propargyl Ethers: para-Propargylation and Catalytic Asymmetric Dearomatization. Angew Chem Int Ed Engl 2022; 61:e202211785. [PMID: 36317655 DOI: 10.1002/anie.202211785] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2022] [Indexed: 11/06/2022]
Abstract
The para-Claisen rearrangement of aryl 1-propargyl ethers involves two-step [3,3]-sigmatropic rearrangements and dearomatization process, which has high activation barriers and is of challenge. Here we discovered thermal para-Claisen rearrangement of naphthyl 1-propargyl ethers, and it enabled the formation of formal para-C-H propargylation products upon rearomatization. Chirality transfer occurred if optically active propargyl ethers were employed, leading to the construction of aryl/propargyl-containing stereogenic centers. Moreover, catalytic asymmetric dearomatization of naphthyl 1-propargyl ethers with different substitution at para-position gave access to benzocyclohexenones bearing all-carbon quaternary stereocenters. The reaction was accelerated by a chiral N,N'-dioxide/Co(OTf)2 complex catalyst to achieve high yields (up to 98 %) and high enantioselectivities (up to 93 % ee). The DFT calculations and experimental results provided important clues to clarify the para-Claisen rearrangement process as well as the chiral induction and remote delivery.
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Affiliation(s)
- Lifeng Wang
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, 610064, China
| | - Yuqiao Zhou
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, 610064, China
| | - Zhishan Su
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, 610064, China
| | - Fengcai Zhang
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, 610064, China
| | - Weidi Cao
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, 610064, China
| | - Xiaohua Liu
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, 610064, China
| | - Xiaoming Feng
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, 610064, China
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10
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Wang L, Zhou Y, Su Z, Zhang F, Cao W, Liu X, Feng X. [3,3]‐Sigmatropic Rearrangements of Naphthyl 1‐Propargyl Ethers:
para
‐Propargylation and Catalytic Asymmetric Dearomatization. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202211785] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/05/2022]
Affiliation(s)
- Lifeng Wang
- Key Laboratory of Green Chemistry & Technology Ministry of Education College of Chemistry Sichuan University Chengdu 610064 China
| | - Yuqiao Zhou
- Key Laboratory of Green Chemistry & Technology Ministry of Education College of Chemistry Sichuan University Chengdu 610064 China
| | - Zhishan Su
- Key Laboratory of Green Chemistry & Technology Ministry of Education College of Chemistry Sichuan University Chengdu 610064 China
| | - Fengcai Zhang
- Key Laboratory of Green Chemistry & Technology Ministry of Education College of Chemistry Sichuan University Chengdu 610064 China
| | - Weidi Cao
- Key Laboratory of Green Chemistry & Technology Ministry of Education College of Chemistry Sichuan University Chengdu 610064 China
| | - Xiaohua Liu
- Key Laboratory of Green Chemistry & Technology Ministry of Education College of Chemistry Sichuan University Chengdu 610064 China
| | - Xiaoming Feng
- Key Laboratory of Green Chemistry & Technology Ministry of Education College of Chemistry Sichuan University Chengdu 610064 China
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11
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Liu Y, Liu X, Feng X. Recent advances in metal-catalysed asymmetric sigmatropic rearrangements. Chem Sci 2022; 13:12290-12308. [PMID: 36382273 PMCID: PMC9629009 DOI: 10.1039/d2sc03806d] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2022] [Accepted: 09/22/2022] [Indexed: 09/22/2023] Open
Abstract
Asymmetric sigmatropic rearrangement is a powerful organic transformation via substrate-reorganization to efficiently increase molecular complexity from readily accessible starting materials. In particular, a high level of diastereo- and enantioselectivity can be readily accessed through well-defined and predictable transition states in [3,3], [2,3]-sigmatropic rearrangements, which have been widely applied in the synthesis of various chiral building blocks, natural products, and pharmaceuticals. In recent years, catalytic asymmetric sigmatropic rearrangements involving chiral metal complexes to induce stereocontrol have been intensively studied. This review presents an overview of metal-catalysed enantioselective versions of sigmatropic rearrangements in the past two decades, mainly focusing on [3,3], [2,3], and [1,3]-rearrangements, to show the development of substrate design, new catalyst exploitation, and novel cascade processes. In addition, their application in the asymmetric synthesis of complex natural products is also exemplified.
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Affiliation(s)
- Yangbin Liu
- Institute of Chemical Biology, Shenzhen Bay Laboratory Shenzhen 518132 China
| | - Xiaohua Liu
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University Chengdu 610064 China
| | - Xiaoming Feng
- Institute of Chemical Biology, Shenzhen Bay Laboratory Shenzhen 518132 China
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University Chengdu 610064 China
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12
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Zhang X, Tong Y, Li G, Zhao H, Chen G, Yao H, Tong R. 1,5-Allyl Shift by a Sequential Achmatowicz/Oxonia-Cope/Retro-Achmatowicz Rearrangement. Angew Chem Int Ed Engl 2022; 61:e202205919. [PMID: 35670657 DOI: 10.1002/anie.202205919] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2022] [Indexed: 12/12/2022]
Abstract
1,3-Allyl and 1,2-allyl shifts through [3,3]- and [2,3]-sigmatropic rearrangements are well-established and widely used in organic synthesis. In contrast, 1,5-allyl shift through related [3,5]-sigmatropic rearrangement is unknown because [3,5]-sigmatropic rearrangement is thermally Woodward-Hoffmann forbidden. Herein, we report an unexpected discovery of a formal 1,5-allyl shift of allyl furfuryl alcohol through a 2-step sequential rearrangement. Mechanistically, this formal 1,5-allyl shift is achieved through a sequential ring expansion/contraction rearrangement: 1) Achmatowicz rearrangement (ring expansion), and 2) cascade oxonia-Cope rearrangement/retro-Achmatowicz rearrangement (ring contraction). This new 1,5-allyl shift method is demonstrated with >20 examples and expected to find applications in organic synthesis and materials chemistry.
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Affiliation(s)
- Xiayan Zhang
- Department of Chemistry, The Hong Kong University of Science and Technology, Clearwater Bay, Kowloon, Hong Kong, China.,Hong Kong Branch of the Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), The Hong Kong University of Science and Technology, Clearwater Bay, Kowloon, Hong Kong, China
| | - Yi Tong
- Department of Chemistry, The Hong Kong University of Science and Technology, Clearwater Bay, Kowloon, Hong Kong, China
| | - Gang Li
- Guangdong Key Laboratory of Animal Conservation and Resource Utilization, Guangdong Public Laboratory of Wild Animal Conservation and Utilization, Institute of Zoology, Guangdong Academy of Sciences, Guangzhou, Guangdong, 510260, China
| | - Hao Zhao
- Guangdong Key Laboratory of Animal Conservation and Resource Utilization, Guangdong Public Laboratory of Wild Animal Conservation and Utilization, Institute of Zoology, Guangdong Academy of Sciences, Guangzhou, Guangdong, 510260, China
| | - Guanye Chen
- Guangdong Key Laboratory of Animal Conservation and Resource Utilization, Guangdong Public Laboratory of Wild Animal Conservation and Utilization, Institute of Zoology, Guangdong Academy of Sciences, Guangzhou, Guangdong, 510260, China
| | - Hongliang Yao
- Guangdong Key Laboratory of Animal Conservation and Resource Utilization, Guangdong Public Laboratory of Wild Animal Conservation and Utilization, Institute of Zoology, Guangdong Academy of Sciences, Guangzhou, Guangdong, 510260, China
| | - Rongbiao Tong
- Department of Chemistry, The Hong Kong University of Science and Technology, Clearwater Bay, Kowloon, Hong Kong, China.,Hong Kong Branch of the Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), The Hong Kong University of Science and Technology, Clearwater Bay, Kowloon, Hong Kong, China.,Guangdong Key Laboratory of Animal Conservation and Resource Utilization, Guangdong Public Laboratory of Wild Animal Conservation and Utilization, Institute of Zoology, Guangdong Academy of Sciences, Guangzhou, Guangdong, 510260, China
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13
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Wicker G, Zhou R, Schoch R, Paradies J. Sigmatropic [1,5] Carbon Shift of Transient C3 Ammonium Enolates. Angew Chem Int Ed Engl 2022; 61:e202204378. [PMID: 35535567 PMCID: PMC9401041 DOI: 10.1002/anie.202204378] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2022] [Indexed: 11/22/2022]
Abstract
The stereospecific sigmatropic [1,5] carbon shift of C3 ammonium enolates is discovered. According to mechanistic, kinetic and computational experiments, this new rearrangement proceeds via the catalytic generation of a transient C3 ammonium enolate by intramolecular aza‐Michael addition. This intermediate rapidly undergoes [1,5] sigmatropic carbon migration to furnish the respective tetrahydroquinoline‐4‐ones with excellent diastereoselectivities of d.r. >99 : 1 and in 61–98 % yield.
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Affiliation(s)
- Garrit Wicker
- Department of Chemistry Paderborn University Warburger Strasse 100 33098 Paderborn Germany
| | - Rundong Zhou
- Department of Chemistry Paderborn University Warburger Strasse 100 33098 Paderborn Germany
| | - Roland Schoch
- Department of Chemistry Paderborn University Warburger Strasse 100 33098 Paderborn Germany
| | - Jan Paradies
- Department of Chemistry Paderborn University Warburger Strasse 100 33098 Paderborn Germany
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14
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Zhang XY, Tong Y, Li G, Zhao H, Chen G, Yao H, Tong R. 1,5‐Allyl Shift by a Sequential Achmatowicz/Oxonia‐Cope/Retro‐Achmatowicz Rearrangement. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202205919] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Xiayan Y. Zhang
- Department of Chemistry The Hong Kong University of Science and Technology Clearwater Bay, Kowloon, Hong Kong China
- Hong Kong Branch of the Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou) The Hong Kong University of Science and Technology Clearwater Bay, Kowloon, Hong Kong China
| | - Yi Tong
- Department of Chemistry The Hong Kong University of Science and Technology Clearwater Bay, Kowloon, Hong Kong China
| | - Gang Li
- Guangdong Key Laboratory of Animal Conservation and Resource Utilization Guangdong Public Laboratory of Wild Animal Conservation and Utilization Institute of Zoology Guangdong Academy of Sciences Guangzhou Guangdong, 510260 China
| | - Hao Zhao
- Guangdong Key Laboratory of Animal Conservation and Resource Utilization Guangdong Public Laboratory of Wild Animal Conservation and Utilization Institute of Zoology Guangdong Academy of Sciences Guangzhou Guangdong, 510260 China
| | - Guanye Chen
- Guangdong Key Laboratory of Animal Conservation and Resource Utilization Guangdong Public Laboratory of Wild Animal Conservation and Utilization Institute of Zoology Guangdong Academy of Sciences Guangzhou Guangdong, 510260 China
| | - Hongliang Yao
- Guangdong Key Laboratory of Animal Conservation and Resource Utilization Guangdong Public Laboratory of Wild Animal Conservation and Utilization Institute of Zoology Guangdong Academy of Sciences Guangzhou Guangdong, 510260 China
| | - Rongbiao Tong
- Department of Chemistry The Hong Kong University of Science and Technology Clearwater Bay, Kowloon, Hong Kong China
- Hong Kong Branch of the Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou) The Hong Kong University of Science and Technology Clearwater Bay, Kowloon, Hong Kong China
- Guangdong Key Laboratory of Animal Conservation and Resource Utilization Guangdong Public Laboratory of Wild Animal Conservation and Utilization Institute of Zoology Guangdong Academy of Sciences Guangzhou Guangdong, 510260 China
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15
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Wicker G, Zhou R, Schoch R, Paradies J. Sigmatrope [1,5]‐Kohlenstoffverschiebung transienter C3‐Ammoniumenolate. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202204378] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Garrit Wicker
- Department Chemie Universität Paderborn Warburger Strasse 100 33098 Paderborn Deutschland
| | - Rundong Zhou
- Department Chemie Universität Paderborn Warburger Strasse 100 33098 Paderborn Deutschland
| | - Roland Schoch
- Department Chemie Universität Paderborn Warburger Strasse 100 33098 Paderborn Deutschland
| | - Jan Paradies
- Department Chemie Universität Paderborn Warburger Strasse 100 33098 Paderborn Deutschland
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16
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Zhukhovitskiy AV, Ratushnyy M, Ditzler RAJ. Advancing the Logic of Polymer Synthesis via Skeletal Rearrangements. Synlett 2022. [DOI: 10.1055/s-0041-1737456] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
AbstractPolymers are ubiquitous materials that have driven technological innovation since the middle of the 20th century. As such, the logic that guides polymer synthesis merit considerable attention. Thus far, this logic has often been ‘forward-synthetic’, which constrains the accessible structures of polymer materials. In this article, we emphasize the benefits of ‘retrosynthetic’ logic and posit that the development of skeletal rearrangements of polymer backbones is central to the realization of this logic. To illustrate this point, we discuss two recent examples from our laboratory – Brook and Ireland–Claisen rearrangements of polymer backbones – and contextualize them in prior reports of sigmatropic rearrangements and skeletal rearrangements of polymers. We envision that further development of skeletal rearrangements of polymers will enable advances in not only the chemistry of such rearrangements and the logic of polymer synthesis, but also polymer re- and upcycling.
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17
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Abstract
Carbon–carbon bond formation by [3,3]-sigmatropic rearrangement is a fundamental and powerful method that has been used to build organic molecules for a long time. Initially, Claisen and Cope rearrangements proceeded at high temperatures with limited scopes. By introducing catalytic systems, highly functionalized substrates have become accessible for forming complex structures under mild conditions, and asymmetric synthesis can be achieved by using chiral catalytic systems. This review describes recent breakthroughs in catalytic [3,3]-sigmatropic rearrangements since 2016. Detailed reaction mechanisms are discussed to enable an understanding of the reactivity and selectivity of the reactions. Finally, this review is inspires the development of new cascade reaction pathways employing catalytic [3,3]-sigmatropic rearrangement as related methodologies for the synthesis of complex functional molecules.
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18
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Bilska‐Markowska M, Patyk‐Kaźmierczak E, Lusina A. Synthesis of Fluorinated Amides Starting from Carbohydrates Based on the Claisen Rearrangement. European J Org Chem 2022. [DOI: 10.1002/ejoc.202101378] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Monika Bilska‐Markowska
- Faculty of Chemistry Adam Mickiewicz University in Poznań Uniwersytetu Poznańskiego 8 61-614 Poznań Poland
| | - Ewa Patyk‐Kaźmierczak
- Faculty of Chemistry Adam Mickiewicz University in Poznań Uniwersytetu Poznańskiego 8 61-614 Poznań Poland
| | - Aleksandra Lusina
- Faculty of Chemistry Adam Mickiewicz University in Poznań Uniwersytetu Poznańskiego 8 61-614 Poznań Poland
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19
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Bou Zeid S, Eid S, Najjar F, Macé A, Rivilla I, Cossío FP, Dorcet V, Roisnel T, Carreaux F. Microwave‐Assisted 1,3‐Dioxa‐[3,3]‐Sigmatropic Rearrangement of Substituted Allylic Carbamates: Application to the Synthesis of Novel 1,3‐Oxazine‐2,4‐dione Derivatives. European J Org Chem 2022. [DOI: 10.1002/ejoc.202101100] [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]
Affiliation(s)
- Samar Bou Zeid
- Univ Rennes CNRS ISCR (Institut des Sciences Chimiques de Rennes)-UMR 6226 35000 Rennes France
- Department of Biologychemistry and Biochemistry Laboratoire d'innovation Thérapeutique Lebanese University faculty of Sciences II Fanar Lebanon
| | - Samar Eid
- Department of Biologychemistry and Biochemistry Laboratoire d'innovation Thérapeutique Lebanese University faculty of Sciences II Fanar Lebanon
| | - Fadia Najjar
- Department of Biologychemistry and Biochemistry Laboratoire d'innovation Thérapeutique Lebanese University faculty of Sciences II Fanar Lebanon
| | - Aurélie Macé
- Univ Rennes CNRS ISCR (Institut des Sciences Chimiques de Rennes)-UMR 6226 35000 Rennes France
| | - Ivan Rivilla
- Departamento de Química Orgánica I Centro de Innovación en Química Avanzada (ORFEO-CINQA) Facultad de Química Universidad del País Vasco/Euskal Herriko Unibertsitatea (UPV/EHU) and Donostia International Physics Center (DIPC) P° Manuel Lardizabal 3 20018 San Sebastián/Donostia Spain
- Ikerbasque Basque Fundation for Science 48009 Bilbao Spain
| | - Fernando P. Cossío
- Departamento de Química Orgánica I Centro de Innovación en Química Avanzada (ORFEO-CINQA) Facultad de Química Universidad del País Vasco/Euskal Herriko Unibertsitatea (UPV/EHU) and Donostia International Physics Center (DIPC) P° Manuel Lardizabal 3 20018 San Sebastián/Donostia Spain
| | - Vincent Dorcet
- Univ Rennes CNRS ISCR (Institut des Sciences Chimiques de Rennes)-UMR 6226 35000 Rennes France
| | - Thierry Roisnel
- Univ Rennes CNRS ISCR (Institut des Sciences Chimiques de Rennes)-UMR 6226 35000 Rennes France
| | - François Carreaux
- Univ Rennes CNRS ISCR (Institut des Sciences Chimiques de Rennes)-UMR 6226 35000 Rennes France
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20
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Affiliation(s)
- Shaomin Fu
- Key Laboratory of Green Chemistry & Technology of Ministry of Education, College of Chemistry, Sichuan University 29 Wangjiang Rd Chengdu Sichuan 610064 China
| | - Bo Liu
- Key Laboratory of Green Chemistry & Technology of Ministry of Education, College of Chemistry, Sichuan University 29 Wangjiang Rd Chengdu Sichuan 610064 China
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21
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Shi CY, Li L, Kang W, Zheng YX, Ye LW. Claisen rearrangement triggered by transition metal-catalyzed alkyne alkoxylation. Coord Chem Rev 2021. [DOI: 10.1016/j.ccr.2021.214131] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
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22
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Yang L, Zhang S, Zeng G. Mechanistic Insight into the 1,3,2-Diazaphospholene-Catalyzed Reductant (HBpin/NH 3BH 3)-Controlled Reaction of Allyl 2-Phenylacrylate: Claisen Rearrangement or Hydrogenation? J Phys Chem A 2021; 125:8658-8667. [PMID: 34582211 DOI: 10.1021/acs.jpca.1c06828] [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
Mechanistic study on the 1,3,2-diazaphospholene (1)-catalyzed reduction reaction of allyl 2-phenylacrylate 4 with HBpin or ammonia borane (AB) was systematically performed by the density functional theory (DFT) method. When HBpin is employed as the reductant, the reductive Ireland-Claisen (IC) rearrangement reaction occurs. First, the active species P-hydrido-1,3,2-diazaphospholene 3 is generated through the metathesis reaction of 1 with HBpin. Next, the terminal C═C double bond of 4 is inserted into the P-H bond of 3 to produce 6a through the 1,2-addition (Markovnikov) step, which is followed by the pinB-H bond activation to afford key boron enolate 8. Then, 8 undergoes the [3,3] rearrangement that is followed by the alcoholysis reaction with methanol leading to the final product γ,δ-unsaturated carboxylic acid. The [3,3] rearrangement step is the rate-determining step with the Gibbs energy barrier (ΔG≠) and Gibbs reaction energy (ΔG) of 23.9 and -27.5 kcal/mol, respectively. When AB is employed as the reductant, the transfer hydrogenation reaction occurs through two comparable pathways, 1,2- and 1,4-transfer hydrogenation pathways. The former pathway directly leads to the hydrogenation product with the ΔG≠ and ΔG values of 22.4 and -27.7 kcal/mol, respectively. The latter pathway produces an enolate intermediate (rate-determining step, ΔG≠/ΔG = 24.1/-0.3 kcal/mol) first, which then prefers to undergo the enol-keto tautomerism instead of the [3,3] rearrangement to afford the hydrogenation product. Obviously, the generation of the boron enolate plays a crucial role in the reductive IC rearrangement reaction because it prevents the enol-keto tautomerism.
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Affiliation(s)
- Linlin Yang
- Kuang Yaming Honors School, Institute for Brain Sciences, Nanjing University, Nanjing 210023, China
| | - Shuoqi Zhang
- Kuang Yaming Honors School, Institute for Brain Sciences, Nanjing University, Nanjing 210023, China
| | - Guixiang Zeng
- Kuang Yaming Honors School, Institute for Brain Sciences, Nanjing University, Nanjing 210023, China
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23
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2,2-Bis(phenylselanyl)-1-(p-tolyl)vinyl 2-Oxo-2-(p-tolyl)acetate. MOLBANK 2021. [DOI: 10.3390/m1283] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
2,2-Bis(phenylselanyl)-1-(p-tolyl)vinyl 2-oxo-2-(p-tolyl)acetate was synthesized via the reaction of p-tolylacetylene with diphenyl diselenide and benzoyl peroxide in benzene under atmospheric conditions. The molecular structure of the synthesized compound was evaluated using single-crystal X-ray analysis and spectral analyses. The process reported here provides a rare example of the direct and selective transformation of a terminal alkyne to the corresponding geminal diseleno-substituted alkene.
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24
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Nair VN, Kojasoy V, Laconsay CJ, Kong WY, Tantillo DJ, Tambar UK. Catalyst-Controlled Regiodivergence in Rearrangements of Indole-Based Onium Ylides. J Am Chem Soc 2021; 143:9016-9025. [PMID: 34124896 PMCID: PMC8650141 DOI: 10.1021/jacs.1c00283] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
We have developed catalyst-controlled regiodivergent rearrangements of onium-ylides derived from indole substrates. Oxonium ylides formed in situ from substituted indoles selectively undergo [2,3]- and [1,2]-rearrangements in the presence of a rhodium and a copper catalyst, respectively. The combined experimental and density functional theory (DFT) computational studies indicate divergent mechanistic pathways involving a metal-free ylide in the rhodium catalyzed reaction favoring [2,3]-rearrangement, and a metal-coordinated ion-pair in the copper catalyzed [1,2]-rearrangement that recombines in the solvent-cage. The application of our methodology was demonstrated in the first total synthesis of the indole alkaloid (±)-sorazolon B, which enabled the stereochemical reassignment of the natural product. Further functional group transformations of the rearrangement products to generate valuable synthetic intermediates were also demonstrated.
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Affiliation(s)
- Vaishnavi N Nair
- Department of Biochemistry, The University of Texas Southwestern Medical Center, 5323 Harry Hines Boulevard, Dallas, Texas 75390-9038, United States
| | - Volga Kojasoy
- Department of Chemistry, University of California, Davis, One Shields Avenue, Davis, California 95616, United States
| | - Croix J Laconsay
- Department of Chemistry, University of California, Davis, One Shields Avenue, Davis, California 95616, United States
| | - Wang Yeuk Kong
- Department of Chemistry, University of California, Davis, One Shields Avenue, Davis, California 95616, United States
| | - Dean J Tantillo
- Department of Chemistry, University of California, Davis, One Shields Avenue, Davis, California 95616, United States
| | - Uttam K Tambar
- Department of Biochemistry, The University of Texas Southwestern Medical Center, 5323 Harry Hines Boulevard, Dallas, Texas 75390-9038, United States
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25
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Abstract
It has been proposed that biosyntheses of many natural products involve pericyclic reactions, including Diels-Alder (DA) reaction. However, only a small set of enzymes have been proposed to catalyze pericyclic reactions. Most surprisingly, there has been no formal identification of natural enzymes that can be defined to catalyze DA reactions (DAases), despite the wide application of the reaction in chemical syntheses of complex organic compounds. However, recent studies began to accumulate a growing body of evidence that supports the notion that enzymes that formally catalyze DA reactions, in fact exist. In this review, I will begin by describing a short history behind the discovery and characterization of macrophomate synthase, one of the earliest enzymes that was proposed to catalyze an intermolecular DA reaction during the biosynthesis of a substituted benzoic acid in a phytopathogenic fungus Macrophoma commelinae. Then, I will discuss representative enzymes that have been chemically authenticated to catalyze DA reactions, with emphasis on more recent discoveries of DAases involved mainly in fungal secondary metabolite biosynthesis except for one example from a marine streptomycete. The current success in identification of a series of DAases and enzymes that catalyze other pericyclic reactions owes to the combined efforts from both the experimental and theoretical approaches in discovering natural products. Such efforts typically involve identifying the chemical features derived from cycloaddition reactions, isolating the biosynthetic genes that encode enzymes that generate such chemical features and deciphering the reaction mechanisms for the enzyme-catalyzed pericyclic reactions.
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Affiliation(s)
- Kenji Watanabe
- Department of Pharmaceutical Sciences, University of Shizuoka, Shizuoka, 422-8526, Japan.
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26
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Podunavac M, Mailyan AK, Jackson JJ, Lovy A, Farias P, Huerta H, Molgó J, Cardenas C, Zakarian A. Scalable Total Synthesis, IP3R Inhibitory Activity of Desmethylxestospongin B, and Effect on Mitochondrial Function and Cancer Cell Survival. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202102259] [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)
- Maša Podunavac
- Department of Chemistry and Biochemistry University of California Santa Barbara Santa Barbara CA 93106 USA
| | - Artur K. Mailyan
- Department of Chemistry and Biochemistry University of California Santa Barbara Santa Barbara CA 93106 USA
| | - Jeffrey J. Jackson
- Department of Chemistry and Biochemistry University of California Santa Barbara Santa Barbara CA 93106 USA
| | - Alenka Lovy
- Center for Integrative Biology Faculty of Sciences Geroscience Center for Brain Health and Metabolism Universidad Mayor Santiago Chile
| | - Paula Farias
- Center for Integrative Biology Faculty of Sciences Geroscience Center for Brain Health and Metabolism Universidad Mayor Santiago Chile
| | - Hernan Huerta
- Center for Integrative Biology Faculty of Sciences Geroscience Center for Brain Health and Metabolism Universidad Mayor Santiago Chile
| | - Jordi Molgó
- Université Paris-Saclay CEA Institut des Sciences du Vivant Frédéric Joliot ERL CNRS n 9004 Département Médicaments et Technologies pour la Santé Service d'Ingéniere Moléculaire pour Santé (SIMoS) Batiment 152, Point courrier 24 91191 Gif-sur-Yvette France
| | - Cesar Cardenas
- Department of Chemistry and Biochemistry University of California Santa Barbara Santa Barbara CA 93106 USA
- Center for Integrative Biology Faculty of Sciences Geroscience Center for Brain Health and Metabolism Universidad Mayor Santiago Chile
- The Buck Institute for Research on Aging Novato CA USA
| | - Armen Zakarian
- Department of Chemistry and Biochemistry University of California Santa Barbara Santa Barbara CA 93106 USA
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27
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Podunavac M, Mailyan AK, Jackson JJ, Lovy A, Farias P, Huerta H, Molgó J, Cardenas C, Zakarian A. Scalable Total Synthesis, IP3R Inhibitory Activity of Desmethylxestospongin B, and Effect on Mitochondrial Function and Cancer Cell Survival. Angew Chem Int Ed Engl 2021; 60:11278-11282. [PMID: 33751770 DOI: 10.1002/anie.202102259] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2021] [Indexed: 11/05/2022]
Abstract
The scalable synthesis of the oxaquinolizidine marine natural product desmethylxestospongin B is based on the early application of Ireland-Claisen rearrangement, macrolactamization, and a late-stage installation of the oxaquinolizidine units by lactam reduction. The synthesis serves as the source of material to investigate calcium signaling and its effect on mitochondrial metabolism in various cell types, including cancer cells.
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Affiliation(s)
- Maša Podunavac
- Department of Chemistry and Biochemistry, University of California Santa Barbara, Santa Barbara, CA, 93106, USA
| | - Artur K Mailyan
- Department of Chemistry and Biochemistry, University of California Santa Barbara, Santa Barbara, CA, 93106, USA
| | - Jeffrey J Jackson
- Department of Chemistry and Biochemistry, University of California Santa Barbara, Santa Barbara, CA, 93106, USA
| | - Alenka Lovy
- Center for Integrative Biology, Faculty of Sciences, Geroscience Center for Brain Health and Metabolism, Universidad Mayor, Santiago, Chile
| | - Paula Farias
- Center for Integrative Biology, Faculty of Sciences, Geroscience Center for Brain Health and Metabolism, Universidad Mayor, Santiago, Chile
| | - Hernan Huerta
- Center for Integrative Biology, Faculty of Sciences, Geroscience Center for Brain Health and Metabolism, Universidad Mayor, Santiago, Chile
| | - Jordi Molgó
- Université Paris-Saclay, CEA, Institut des Sciences du Vivant Frédéric Joliot, ERL CNRS n 9004, Département Médicaments et Technologies pour la Santé, Service d'Ingéniere Moléculaire pour Santé (SIMoS), Batiment 152, Point courrier 24, 91191, Gif-sur-Yvette, France
| | - Cesar Cardenas
- Department of Chemistry and Biochemistry, University of California Santa Barbara, Santa Barbara, CA, 93106, USA.,Center for Integrative Biology, Faculty of Sciences, Geroscience Center for Brain Health and Metabolism, Universidad Mayor, Santiago, Chile.,The Buck Institute for Research on Aging, Novato, CA, USA
| | - Armen Zakarian
- Department of Chemistry and Biochemistry, University of California Santa Barbara, Santa Barbara, CA, 93106, USA
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28
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Delayre B, Wang Q, Zhu J. Natural Product Synthesis Enabled by Domino Processes Incorporating a 1,2-Rearrangement Step. ACS CENTRAL SCIENCE 2021; 7:559-569. [PMID: 34056086 PMCID: PMC8155462 DOI: 10.1021/acscentsci.1c00075] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/18/2021] [Indexed: 05/07/2023]
Abstract
The art of natural product total synthesis is closely associated with two major determinants: the development/application of novel chemical reactions and the innovation in strategic use of classic organic reactions. While purposely seeking/applying a new synthetic methodology allowing nonconventional bond disconnections could shorten the synthetic route, the development of domino processes composed of a series of well-established reactions could also lead to a concise, practical, and aesthetically appealing synthesis. As an important class of textbook reactions, the 1,2-anionotropic rearrangements discovered at the dawn of modern organic chemistry have important bearings not only on chemical synthesis but also on the conceptual breakthroughs in the field. In its basic form, the 1,2-shift affords nothing but a constitutional isomer of the starting material and is therefore not a complexity-generating transformation. However, such a simple 1,2-shift could in fact change the molecular topology if the precursor is cleverly designed. More dramatically, it can metamorphosize the structure of the substrate when it is combined with other transformations in a domino sequence. In this Outlook, we highlight recent examples of natural product synthesis featuring a key domino process incorporating a 1,2-anionotropic rearrangement. Specifically, domino reactions integrating Wagner-Meerwein, pinacol, α-ketol, α-aminoketone, α-iminol, or benzilic acid rearrangements will be discussed.
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29
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Abstract
Reviewed herein is the aromatic Cope rearrangement, a Cope rearrangement where one (or both) of the alkenes of the 1,5-diene are part of a greater aromatic system. While the Cope rearrangement of 1,5-dienes has seen wide utility, variation, and application in chemical synthesis, the aromatic Cope rearrangement, comparatively, has not. This review summarizes the ∼40 papers dating back to 1956 on this topic and is divided into the following sections: (1) introduction, including kinetic and thermodynamic challenges of the aromatic Cope rearrangement, and (2) key substrate features, of which there are four general types: (i) α-allyl-α-aryl malonates (and related substrates), (ii) 1-aryl-2-vinylcyclopropanes, and (iii) anion-accelerated aromatic oxy-Cope substrates, and (iv) the concept of synchronized aromaticity. Ultimately, we hope this review will draw attention to a potentially valuable transformation for arene functionalization that warrants further studies and development.
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Affiliation(s)
- Breanna M Tomiczek
- Department of Chemistry, University of Florida, PO Box 117200, Gainesville, FL, USA.
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30
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Semenova E, Lahtigui O, Ghiviriga I, Grenning AJ. [3,3] Ring Rearrangement of Oxo- or Aza-Bridged Bicyclo[3.2.1]octene-Based 1,5-Dienes. Org Lett 2021; 23:2263-2267. [PMID: 33689388 DOI: 10.1021/acs.orglett.1c00388] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
We report that oxo- or aza-bridged alkylidenemalononitrile-cycloheptenes undergo a [3,3] ring rearrangement to yield cyclopenta-fused dihydro-furans or pyrroles. Described herein are the origins of the serendipitous discovery, scope studies, and representative functional group interconversion chemistry.
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Affiliation(s)
- Evgeniya Semenova
- Department of Chemistry, University of Florida, P.O. Box 117200, Gainesville, Florida 32611, United States
| | - Ouidad Lahtigui
- Department of Chemistry, University of Florida, P.O. Box 117200, Gainesville, Florida 32611, United States
| | - Ion Ghiviriga
- Department of Chemistry, University of Florida, P.O. Box 117200, Gainesville, Florida 32611, United States
| | - Alexander J Grenning
- Department of Chemistry, University of Florida, P.O. Box 117200, Gainesville, Florida 32611, United States
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31
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Okuyama Y, Kidena M, Kato E, Kawano S, Ishii K, Maie K, Miura K, Simizu S, Sato T, Chida N. Seven-Step Synthesis of All-Nitrogenated Sugar Derivatives Using Sequential Overman Rearrangements. Angew Chem Int Ed Engl 2021; 60:5193-5198. [PMID: 33252821 DOI: 10.1002/anie.202015141] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2020] [Indexed: 11/10/2022]
Abstract
All-nitrogenated sugars (ANSs), in which all hydroxy groups in a carbohydrate are replaced with amino groups, are anticipated to be privileged structures with useful biological activities. However, ANS synthesis has been challenging due to the difficulty in the installation of multi-amino groups. We report herein the development of a concise synthetic route to peracetylated ANSs in seven steps from commercially available monosaccharides. The key to success is the use of the sequential Overman rearrangement, which enables formal simultaneous substitution of four or five hydroxy groups in monosaccharides with amino groups. A variety of ANSs are available through the same reaction sequence starting from different initial monosaccharides by chirality transfer of secondary alcohols. Transformations of the resulting peracetylated ANSs such as glycosylation and deacetylation are also demonstrated. Biological studies reveal that ANS-modified cholesterol show cytotoxicity against human cancer cell lines, whereas each ANS and cholesterol have no cytotoxicity.
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Affiliation(s)
- Yuya Okuyama
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University, 3-14-1, Hiyoshi, Kohoku-ku, Yokohama, 223-8522, Japan
| | - Mayu Kidena
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University, 3-14-1, Hiyoshi, Kohoku-ku, Yokohama, 223-8522, Japan
| | - Erina Kato
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University, 3-14-1, Hiyoshi, Kohoku-ku, Yokohama, 223-8522, Japan
| | - Sayaka Kawano
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University, 3-14-1, Hiyoshi, Kohoku-ku, Yokohama, 223-8522, Japan
| | - Koki Ishii
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University, 3-14-1, Hiyoshi, Kohoku-ku, Yokohama, 223-8522, Japan
| | - Kenta Maie
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University, 3-14-1, Hiyoshi, Kohoku-ku, Yokohama, 223-8522, Japan
| | - Kazuki Miura
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University, 3-14-1, Hiyoshi, Kohoku-ku, Yokohama, 223-8522, Japan
| | - Siro Simizu
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University, 3-14-1, Hiyoshi, Kohoku-ku, Yokohama, 223-8522, Japan
| | - Takaaki Sato
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University, 3-14-1, Hiyoshi, Kohoku-ku, Yokohama, 223-8522, Japan
| | - Noritaka Chida
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University, 3-14-1, Hiyoshi, Kohoku-ku, Yokohama, 223-8522, Japan
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32
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Okuyama Y, Kidena M, Kato E, Kawano S, Ishii K, Maie K, Miura K, Simizu S, Sato T, Chida N. Seven‐Step Synthesis of All‐Nitrogenated Sugar Derivatives Using Sequential Overman Rearrangements. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202015141] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Yuya Okuyama
- Department of Applied Chemistry Faculty of Science and Technology Keio University 3-14-1, Hiyoshi, Kohoku-ku Yokohama 223-8522 Japan
| | - Mayu Kidena
- Department of Applied Chemistry Faculty of Science and Technology Keio University 3-14-1, Hiyoshi, Kohoku-ku Yokohama 223-8522 Japan
| | - Erina Kato
- Department of Applied Chemistry Faculty of Science and Technology Keio University 3-14-1, Hiyoshi, Kohoku-ku Yokohama 223-8522 Japan
| | - Sayaka Kawano
- Department of Applied Chemistry Faculty of Science and Technology Keio University 3-14-1, Hiyoshi, Kohoku-ku Yokohama 223-8522 Japan
| | - Koki Ishii
- Department of Applied Chemistry Faculty of Science and Technology Keio University 3-14-1, Hiyoshi, Kohoku-ku Yokohama 223-8522 Japan
| | - Kenta Maie
- Department of Applied Chemistry Faculty of Science and Technology Keio University 3-14-1, Hiyoshi, Kohoku-ku Yokohama 223-8522 Japan
| | - Kazuki Miura
- Department of Applied Chemistry Faculty of Science and Technology Keio University 3-14-1, Hiyoshi, Kohoku-ku Yokohama 223-8522 Japan
| | - Siro Simizu
- Department of Applied Chemistry Faculty of Science and Technology Keio University 3-14-1, Hiyoshi, Kohoku-ku Yokohama 223-8522 Japan
| | - Takaaki Sato
- Department of Applied Chemistry Faculty of Science and Technology Keio University 3-14-1, Hiyoshi, Kohoku-ku Yokohama 223-8522 Japan
| | - Noritaka Chida
- Department of Applied Chemistry Faculty of Science and Technology Keio University 3-14-1, Hiyoshi, Kohoku-ku Yokohama 223-8522 Japan
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33
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Jana S, Guo Y, Koenigs RM. Recent Perspectives on Rearrangement Reactions of Ylides via Carbene Transfer Reactions. Chemistry 2021; 27:1270-1281. [PMID: 32754993 PMCID: PMC7894496 DOI: 10.1002/chem.202002556] [Citation(s) in RCA: 71] [Impact Index Per Article: 23.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2020] [Revised: 07/29/2020] [Indexed: 01/24/2023]
Abstract
Among the available methods to increase the molecular complexity, sigmatropic rearrangements occupy a distinct position in organic synthesis. Despite being known for over a century sigmatropic rearrangement reactions of ylides via carbene transfer reaction have only recently come of age. Most of the ylide mediated rearrangement processes involve rupture of a σ-bond and formation of a new bond between π-bond and negatively charged atom followed by simultaneous redistribution of π-electrons. This minireview describes the advances in this research area made in recent years, which now opens up metal-catalyzed enantioselective sigmatropic rearrangement reactions, metal-free photochemical rearrangement reactions and novel reaction pathways that can be accessed via ylide intermediates.
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Affiliation(s)
- Sripati Jana
- Institute of Organic ChemistryRWTH Aachen UniversityLandoltweg 152074AachenGermany
| | - Yujing Guo
- Institute of Organic ChemistryRWTH Aachen UniversityLandoltweg 152074AachenGermany
| | - Rene M. Koenigs
- Institute of Organic ChemistryRWTH Aachen UniversityLandoltweg 152074AachenGermany
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34
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Alam MN, Dash SR, Mukherjee A, Pandole S, Marelli UK, Vanka K, Maity P. [1,3]-Claisen Rearrangement via Removable Functional Group Mediated Radical Stabilization. Org Lett 2021; 23:890-895. [PMID: 33443431 DOI: 10.1021/acs.orglett.0c04109] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A thermal O-to-C [1,3]-rearrangement of α-hydroxy acid derived enol ethers was achieved under mild conditions. The 2-aminothiophenol protection of carboxylic acids facilitates formation of the [1,3] precursor and its thermal rearrangement via stabilization of a radical intermediate. Experimental and theoretical evidence for dissociative radical pair formation, its captodative stability via aminothiophenol, and a unique solvent effect are presented. The aminothiophenol was deprotected from rearrangement products as well as after derivatization to useful synthons.
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Affiliation(s)
- Md Nirshad Alam
- Organic Chemistry Division, CSIR-National Chemical Laboratory, Pune 411008, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Soumya Ranjan Dash
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India.,Physical and Material Chemistry Division, CSIR-National Chemical Laboratory, Pune 411008, India
| | - Anirban Mukherjee
- Organic Chemistry Division, CSIR-National Chemical Laboratory, Pune 411008, India
| | - Satish Pandole
- Organic Chemistry Division, CSIR-National Chemical Laboratory, Pune 411008, India
| | - Udaya Kiran Marelli
- Organic Chemistry Division, CSIR-National Chemical Laboratory, Pune 411008, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Kumar Vanka
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India.,Physical and Material Chemistry Division, CSIR-National Chemical Laboratory, Pune 411008, India
| | - Pradip Maity
- Organic Chemistry Division, CSIR-National Chemical Laboratory, Pune 411008, India
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35
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Zhang G, Xu J. [3,3] Sigmatropic Shifts and Applications of Hydroxylamine Derivatives. CHINESE J ORG CHEM 2021. [DOI: 10.6023/cjoc202103022] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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36
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Fulton TJ, Cusumano AQ, Alexy EJ, Du YE, Zhang H, Houk KN, Stoltz BM. Global Diastereoconvergence in the Ireland-Claisen Rearrangement of Isomeric Enolates: Synthesis of Tetrasubstituted α-Amino Acids. J Am Chem Soc 2020; 142:21938-21947. [PMID: 33320668 DOI: 10.1021/jacs.0c11480] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
A dual experimental/theoretical investigation of the Ireland-Claisen rearrangement of tetrasubstituted α-phthalimido ester enolates to afford α-tetrasubstituted, β-trisubstituted α-amino acids (generally >20:1 dr) is described. For trans allylic olefins, the Z- and E-enol ethers proceed through chair and boat transition states, respectively. For cis allylic olefins, the trend is reversed. As a result, the diastereochemical outcome of the reaction is preserved regardless of the geometry of the enolate or the accompanying allylic olefin. We term this unique convergence of all possible olefin isomers global diastereoconvergence. This reaction manifold circumvents limitations in present-day technologies for the stereoselective enolization of α,α-disubstituted allyl esters. Density functional theory paired with state-of-the-art local coupled-cluster theory (DLPNO-CCSD(T)) was employed for the accurate determination of quantum mechanical energies.
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Affiliation(s)
- Tyler J Fulton
- The Warren and Katharine Schlinger Laboratory for Chemistry and Chemical Engineering, Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125, United States
| | - Alexander Q Cusumano
- The Warren and Katharine Schlinger Laboratory for Chemistry and Chemical Engineering, Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125, United States
| | - Eric J Alexy
- The Warren and Katharine Schlinger Laboratory for Chemistry and Chemical Engineering, Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125, United States
| | - Yun E Du
- The Warren and Katharine Schlinger Laboratory for Chemistry and Chemical Engineering, Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125, United States
| | - Haiming Zhang
- Small Molecule Process Chemistry, Genentech, Inc., South San Francisco, California 94080, United States
| | - K N Houk
- Department of Chemistry and Biochemistry, University of California, Los Angeles, California 90095, United States
| | - Brian M Stoltz
- The Warren and Katharine Schlinger Laboratory for Chemistry and Chemical Engineering, Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125, United States
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37
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Hwang SH, Choi TL. Tandem diaza-Cope rearrangement polymerization: turning intramolecular reaction into powerful polymerization to give enantiopure materials for Zn 2+ sensors. Chem Sci 2020; 12:2404-2409. [PMID: 34164005 PMCID: PMC8179250 DOI: 10.1039/d0sc06138g] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
[3,3]-Sigmatropic rearrangement is a powerful reaction to form C–C bonds stereospecifically; however, owing to intrinsic simultaneous bond formation and breakage, this versatile method has not been utilized in polymerization. Herein, we report a new tandem diaza-Cope rearrangement polymerization (DCRP) that can synthesize polymers with defect-free C–C bond formation from easy and efficient imine formation. A mechanistic investigation by in situ1H NMR experiments suggests that this polymerization proceeds by a rapid DCR process, forming an enantiospecific C–C bond that occurs almost simultaneously with imine formation. This polymerization produces not only highly stable polymers against hydrolysis due to resonance-assisted hydrogen bonds (RAHBs) but also chiral polymers containing enantiopure salen moieties, which lead to high-performance Zn2+-selective turn-on chemosensors with up to 73-fold amplification. We also found that their optical activities and sensing performances are heavily dependent on the reaction temperature, which significantly affects the stereoselectivity of DCR. Herein, we report a new tandem diaza-Cope rearrangement polymerization synthesizing enantiopure polymers with defect-free C–C bond formation. Furthermore, these polymers can be applied as high-performance turn-on Zn2+ sensors.![]()
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Affiliation(s)
- Soon-Hyeok Hwang
- Department of Chemistry, Seoul National University Seoul 08826 Korea
| | - Tae-Lim Choi
- Department of Chemistry, Seoul National University Seoul 08826 Korea
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38
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Zia M, Hameed S, Ahmad I, Tabassum N, Yousuf S. Regio-isomeric isoxazole sulfonates: Synthesis, characterization, electrochemical studies and DNA binding activity. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2020.128635] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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39
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Semenova E, Lahtigui O, Scott SK, Albritton M, Abboud KA, Ghiviriga I, Roitberg AE, Grenning AJ. Selective ring-rearrangement or ring-closing metathesis of bicyclo[3.2.1]octenes. Chem Commun (Camb) 2020; 56:11779-11782. [PMID: 32940291 DOI: 10.1039/d0cc04624h] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Explored was the competitive ring-closing metathesis vs. ring-rearrangement metathesis of bicyclo[3.2.1]octenes prepared by a simple and convergent synthesis from bicyclic alkylidenemalono-nitriles and allylic electrophiles. It was uncovered that ring-closing metathesis occurs exclusively on the tetraene-variant, yielding unique, stereochemically and functionally rich polycyclic bridged frameworks, whereas the reduced version (a triene) undergoes ring-rearrangement metathesis to 5-6-5 fused ring systems resembling the isoryanodane core.
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Affiliation(s)
- Evgeniya Semenova
- Department of Chemistry, University of Florida, P. O. Box 117200, Gainesville, FL, USA.
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40
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Leger PR, Kuroda Y, Chang S, Jurczyk J, Sarpong R. C-C Bond Cleavage Approach to Complex Terpenoids: Development of a Unified Total Synthesis of the Phomactins. J Am Chem Soc 2020; 142:15536-15547. [PMID: 32799452 PMCID: PMC7771649 DOI: 10.1021/jacs.0c07316] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
The rearrangement of carbon-carbon (C-C) single bonds in readily available carbocyclic scaffolds can yield uniquely substituted carbocycles that would be challenging to construct otherwise. This is a powerful and often non-intuitive approach for complex molecule synthesis. The transition-metal-mediated cleavage of C-C bonds has the potential to broaden the scope of this type of skeletal remodeling by providing orthogonal selectivities compared to more traditional pericyclic and carbocation-based rearrangements. To highlight this emerging technology, a unified, asymmetric, total synthesis of the phomactin terpenoids was developed, enabled by the selective C-C bond cleavage of hydroxylated pinene derivatives obtained from carvone. In this full account, the challenges, solutions, and intricacies of Rh(I)-catalyzed cyclobutanol C-C cleavage in a complex molecule setting are described. In addition, details of the evolution of strategies that ultimately led to the total synthesis of phomactins A, K, P, R, and T, as well as the synthesis and structural reassignment of Sch 49027, are given.
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Affiliation(s)
- Paul R Leger
- Department of Chemistry, University of California, Berkeley, California 94720, United States
| | - Yusuke Kuroda
- Department of Chemistry, University of California, Berkeley, California 94720, United States
| | - Stanley Chang
- Department of Chemistry, University of California, Berkeley, California 94720, United States
| | - Justin Jurczyk
- Department of Chemistry, University of California, Berkeley, California 94720, United States
| | - Richmond Sarpong
- Department of Chemistry, University of California, Berkeley, California 94720, United States
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41
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Wang L, Zhou P, Lin Q, Dong S, Liu X, Feng X. Chiral Fe(ii) complex catalyzed enantioselective [1,3] O-to-C rearrangement of alkyl vinyl ethers and synthesis of chromanols and beyond. Chem Sci 2020; 11:10101-10106. [PMID: 34094271 PMCID: PMC8162448 DOI: 10.1039/d0sc04340k] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2020] [Accepted: 09/07/2020] [Indexed: 12/28/2022] Open
Abstract
A highly efficient enantioselective [1,3] O-to-C rearrangement of racemic vinyl ethers that operates under mild conditions was developed. This method with chiral ferrous complex catalyst provided an efficient access to a wide range of chromanols with high yields and excellent enantioselectivities. In addition, an important urological drug (R)-tolterodine and others were easily obtained after simple transformations.
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Affiliation(s)
- Lifeng Wang
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University Chengdu 610064 China
| | - Pengfei Zhou
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University Chengdu 610064 China
| | - Qianchi Lin
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University Chengdu 610064 China
| | - Shunxi Dong
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University Chengdu 610064 China
| | - Xiaohua Liu
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University Chengdu 610064 China
| | - Xiaoming Feng
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University Chengdu 610064 China
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42
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Heerdegen D, Junker J, Dittrich S, Mayer P, Bracher F. Traceless Isoprenylation of Aldehydes via
N
‐Boc‐
N
‐(1,1‐dimethylallyl)hydrazones. European J Org Chem 2020. [DOI: 10.1002/ejoc.202000382] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Desirée Heerdegen
- Department of Pharmacy ‐ Center for Drug Research Ludwig‐Maximilians University Butenandtstr. 5‐13 81377 Munich Germany
| | - Julia Junker
- Department of Pharmacy ‐ Center for Drug Research Ludwig‐Maximilians University Butenandtstr. 5‐13 81377 Munich Germany
| | - Sebastian Dittrich
- Department of Pharmacy ‐ Center for Drug Research Ludwig‐Maximilians University Butenandtstr. 5‐13 81377 Munich Germany
| | - Peter Mayer
- Department of Chemistry Ludwig‐Maximilians University Butenandtstr. 5‐13 81377 Munich Germany
| | - Franz Bracher
- Department of Pharmacy ‐ Center for Drug Research Ludwig‐Maximilians University Butenandtstr. 5‐13 81377 Munich Germany
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43
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Vidhani DV, Gillett JR, Cusido Y, Alabugin IV. [1,5]-Sigmatropic Shifts Regulated by Built-in Frustration. J Phys Chem A 2020; 124:6016-6028. [DOI: 10.1021/acs.jpca.0c03933] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Dinesh V. Vidhani
- Department of Math & Natural Science, Miami Dade College, Miami, Florida, United States
| | - Jared R. Gillett
- Department of Chemistry & Biochemistry, University of Wisconsin, La Crosse, Wisconsin, United States
| | - Yanet Cusido
- Department of Math & Natural Science, Miami Dade College, Miami, Florida, United States
| | - Igor V. Alabugin
- Department of Chemistry & Biochemistry, Florida State University, Tallahassee, Florida, United States
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44
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Xiong F, Zuo Y, Song Y, Zhang L, Zhang X, Xu S, Ren Y. Synthesis of ortho-Phenolic Sulfilimines via an Intermolecular Sulfur Atom Transfer Cascade Reaction. Org Lett 2020; 22:3799-3803. [PMID: 32337987 DOI: 10.1021/acs.orglett.0c01032] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
To expand the toolbox for the synthesis of ortho-phenolic sulfilimines, sigmatropic rearrangements were introduced to the field of sulfilimine chemistry. Herein we report a N-H sulfenylation/[2,3]-sigmatropic rearrangement cascade reaction. This mild reaction enables commercially available thiols to serve as the sulfenylation reagent and generates water as the sole byproduct. Moreover, the reaction has a wide substrate scope and can be conducted on a gram scale with excellent reaction efficiency.
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Affiliation(s)
- Feng Xiong
- School of Life Sciences, Nanjing University, Nanjing 210093, China.,Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong SAR, China
| | - Yingying Zuo
- State Key Laboratory of Chemical Oncogenomics, Peking University Shenzhen Graduate School, Shenzhen 518055, China
| | - Yinan Song
- Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong SAR, China
| | - Linxing Zhang
- State Key Laboratory of Chemical Oncogenomics, Peking University Shenzhen Graduate School, Shenzhen 518055, China
| | - Xinhao Zhang
- State Key Laboratory of Chemical Oncogenomics, Peking University Shenzhen Graduate School, Shenzhen 518055, China
| | - Shaojian Xu
- Hygiene Sector, Joint Laboratory for Infectious Disease Prevention and Control, Longhua District Center for Disease Control and Prevention, Shenzhen 518109, China
| | - Yan Ren
- Hygiene Sector, Joint Laboratory for Infectious Disease Prevention and Control, Longhua District Center for Disease Control and Prevention, Shenzhen 518109, China
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45
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Hou SH, Prichina AY, Zhang M, Dong G. Asymmetric Total Syntheses of Di- and Sesquiterpenoids by Catalytic C-C Activation of Cyclopentanones. Angew Chem Int Ed Engl 2020; 59:7848-7856. [PMID: 32086872 PMCID: PMC7219654 DOI: 10.1002/anie.201915821] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2019] [Indexed: 11/06/2022]
Abstract
To show the synthetic utility of the catalytic C-C activation of less strained substrates, described here are the collective and concise syntheses of the natural products (-)-microthecaline A, (-)-leubehanol, (+)-pseudopteroxazole, (+)-seco-pseudopteroxazole, pseudopterosin A-F and G-J aglycones, and (+)-heritonin. The key step in these syntheses involve a Rh-catalyzed C-C/C-H activation cascade of 3-arylcyclopentanones, which provides a rapid and enantioselective route to access the polysubstituted tetrahydronaphthalene cores presented in these natural products. Other important features include 1) the direct C-H amination of the tetralone substrate in the synthesis of (-)-microthecaline A, 2) the use of phosphoric acid to enhance efficiency and regioselectivity for problematic cyclopentanone substrates in the C-C activation reactions, and 3) the direct conversion of serrulatane into amphilectane diterpenes by an allylic cyclodehydrogenation coupling.
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Affiliation(s)
- Si-Hua Hou
- Department of Chemistry, University of Chicago, Chicago, IL, 60637, USA
| | | | - Mengxi Zhang
- Department of Chemistry, University of Chicago, Chicago, IL, 60637, USA
| | - Guangbin Dong
- Department of Chemistry, University of Chicago, Chicago, IL, 60637, USA
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46
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Klychnikov MK, Pohl R, Císařová I, Jahn U. Application of the Brook Rearrangement in Tandem with Single Electron Transfer Oxidative and Radical Processes. European J Org Chem 2020. [DOI: 10.1002/ejoc.202000126] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Mikhail K. Klychnikov
- Institute of Organic Chemistry and Biochemistry; Czech Academy of Sciences; Flemingovo náměstí 2 16610 Prague 6 Czech Republic
| | - Radek Pohl
- Institute of Organic Chemistry and Biochemistry; Czech Academy of Sciences; Flemingovo náměstí 2 16610 Prague 6 Czech Republic
| | - Ivana Císařová
- Department of Inorganic Chemistry; Faculty of Science; Charles University in Prague; Hlavova 2030/8 12843 Prague 2 Czech Republic
| | - Ullrich Jahn
- Institute of Organic Chemistry and Biochemistry; Czech Academy of Sciences; Flemingovo náměstí 2 16610 Prague 6 Czech Republic
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47
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Chen Y, Liu Y, Li Z, Dong S, Liu X, Feng X. Tandem Insertion–[1,3]‐Rearrangement: Highly Enantioselective Construction of α‐Aminoketones. Angew Chem Int Ed Engl 2020; 59:8052-8056. [DOI: 10.1002/anie.201914645] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2019] [Revised: 02/28/2020] [Indexed: 12/17/2022]
Affiliation(s)
- Yushuang Chen
- Key Laboratory of Green Chemistry & TechnologyMinistry of EducationCollege of ChemistrySichuan University Chengdu 610064 China
| | - Yun Liu
- Key Laboratory of Green Chemistry & TechnologyMinistry of EducationCollege of ChemistrySichuan University Chengdu 610064 China
| | - Zhaojing Li
- Key Laboratory of Green Chemistry & TechnologyMinistry of EducationCollege of ChemistrySichuan University Chengdu 610064 China
| | - Shunxi Dong
- Key Laboratory of Green Chemistry & TechnologyMinistry of EducationCollege of ChemistrySichuan University Chengdu 610064 China
| | - Xiaohua Liu
- Key Laboratory of Green Chemistry & TechnologyMinistry of EducationCollege of ChemistrySichuan University Chengdu 610064 China
| | - Xiaoming Feng
- Key Laboratory of Green Chemistry & TechnologyMinistry of EducationCollege of ChemistrySichuan University Chengdu 610064 China
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48
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Chen Y, Liu Y, Li Z, Dong S, Liu X, Feng X. Tandem Insertion–[1,3]‐Rearrangement: Highly Enantioselective Construction of α‐Aminoketones. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.201914645] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Yushuang Chen
- Key Laboratory of Green Chemistry & TechnologyMinistry of EducationCollege of ChemistrySichuan University Chengdu 610064 China
| | - Yun Liu
- Key Laboratory of Green Chemistry & TechnologyMinistry of EducationCollege of ChemistrySichuan University Chengdu 610064 China
| | - Zhaojing Li
- Key Laboratory of Green Chemistry & TechnologyMinistry of EducationCollege of ChemistrySichuan University Chengdu 610064 China
| | - Shunxi Dong
- Key Laboratory of Green Chemistry & TechnologyMinistry of EducationCollege of ChemistrySichuan University Chengdu 610064 China
| | - Xiaohua Liu
- Key Laboratory of Green Chemistry & TechnologyMinistry of EducationCollege of ChemistrySichuan University Chengdu 610064 China
| | - Xiaoming Feng
- Key Laboratory of Green Chemistry & TechnologyMinistry of EducationCollege of ChemistrySichuan University Chengdu 610064 China
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49
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Hou S, Prichina AY, Zhang M, Dong G. Asymmetric Total Syntheses of Di‐ and Sesquiterpenoids by Catalytic C−C Activation of Cyclopentanones. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.201915821] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Si‐Hua Hou
- Department of Chemistry University of Chicago Chicago IL 60637 USA
| | | | - Mengxi Zhang
- Department of Chemistry University of Chicago Chicago IL 60637 USA
| | - Guangbin Dong
- Department of Chemistry University of Chicago Chicago IL 60637 USA
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50
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Zhang W, Nay B. The Retro‐Claisen Rearrangement of 2‐Vinylcyclopropylcarbonyl Substrates and the Question of its Synthetic Potential. European J Org Chem 2020. [DOI: 10.1002/ejoc.202000136] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Wei Zhang
- Laboratoire de Synthèse Organique Ecole Polytechnique, ENSTA‐ParisTech, CNRS Institut Polytechnique de Paris Route de Saclay 91128 Palaiseau France
| | - Bastien Nay
- Laboratoire de Synthèse Organique Ecole Polytechnique, ENSTA‐ParisTech, CNRS Institut Polytechnique de Paris Route de Saclay 91128 Palaiseau France
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