1
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Aarsen C, Liguori A, Mattsson R, Sipponen MH, Hakkarainen M. Designed to Degrade: Tailoring Polyesters for Circularity. Chem Rev 2024; 124:8473-8515. [PMID: 38936815 PMCID: PMC11240263 DOI: 10.1021/acs.chemrev.4c00032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2024] [Revised: 04/30/2024] [Accepted: 06/11/2024] [Indexed: 06/29/2024]
Abstract
A powerful toolbox is needed to turn the linear plastic economy into circular. Development of materials designed for mechanical recycling, chemical recycling, and/or biodegradation in targeted end-of-life environment are all necessary puzzle pieces in this process. Polyesters, with reversible ester bonds, are already forerunners in plastic circularity: poly(ethylene terephthalate) (PET) is the most recycled plastic material suitable for mechanical and chemical recycling, while common aliphatic polyesters are biodegradable under favorable conditions, such as industrial compost. However, this circular design needs to be further tailored for different end-of-life options to enable chemical recycling under greener conditions and/or rapid enough biodegradation even under less favorable environmental conditions. Here, we discuss molecular design of the polyester chain targeting enhancement of circularity by incorporation of more easily hydrolyzable ester bonds, additional dynamic bonds, or degradation catalyzing functional groups as part of the polyester chain. The utilization of polyester circularity to design replacement materials for current volume plastics is also reviewed as well as embedment of green catalysts, such as enzymes in biodegradable polyester matrices to facilitate the degradation process.
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Affiliation(s)
- Celine
V. Aarsen
- Department
of Fibre and Polymer Technology, KTH Royal
Institute of Technology, Teknikringen 58, 100 44 Stockholm, Sweden
| | - Anna Liguori
- Department
of Fibre and Polymer Technology, KTH Royal
Institute of Technology, Teknikringen 58, 100 44 Stockholm, Sweden
- Department
of Chemistry “G. Ciamician”, University of Bologna, Via Selmi 2, 40126 Bologna, Italy
| | - Rebecca Mattsson
- Department
of Fibre and Polymer Technology, KTH Royal
Institute of Technology, Teknikringen 58, 100 44 Stockholm, Sweden
| | - Mika H. Sipponen
- Department
of Materials and Environmental Chemistry, Stockholm University, Svante Arrhenius väg 16C, 106
91 Stockholm, Sweden
| | - Minna Hakkarainen
- Department
of Fibre and Polymer Technology, KTH Royal
Institute of Technology, Teknikringen 58, 100 44 Stockholm, Sweden
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2
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Wei XP, Wang XC, Ma T, Qiao XX, Li G, He Y, Zhao XJ. B(C 6F 5) 3/CPA-Catalyzed Aza-Diels-Alder Reaction of 3,3-Difluoro-2-Aryl-3H-indoles and Unactivated Dienes. Chemistry 2024; 30:e202401008. [PMID: 38624085 DOI: 10.1002/chem.202401008] [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: 03/12/2024] [Revised: 04/15/2024] [Accepted: 04/16/2024] [Indexed: 04/17/2024]
Abstract
Here we report B(C6F5)3/CPA-catalyzed enantioselective aza-Diels-Alder reaction of 3,3-difluoro-2-Aryl-3H-indoles with unactivated dienes to access chiral 10,10-difluoro-tetrahydropyrido[1,2-a]indoles. This protocol allows the formation of pyrazole-based C2-quaternary indolin-3-ones with high enantioselectivities and regioselectivities. Moreover, gram-scale synthesis of the 10,10-difluoro-tetrahydropyrido[1,2-a]indole skeleton was successfully achieved without any reduction in both yield and enantioselectivity.
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Affiliation(s)
- Xing-Pin Wei
- Key Laboratory of Chemistry in Ethnic Medicinal Resources, Key Laboratory of Natural Products Synthetic Biology of Ethnic Medicinal, Endophytes, State Ethnic Affairs Commission & Ministry of Education, School of Ethnic Medicine, Yunnan Minzu University, Kunming, 650500, China
| | - Xin-Chun Wang
- Key Laboratory of Chemistry in Ethnic Medicinal Resources, Key Laboratory of Natural Products Synthetic Biology of Ethnic Medicinal, Endophytes, State Ethnic Affairs Commission & Ministry of Education, School of Ethnic Medicine, Yunnan Minzu University, Kunming, 650500, China
| | - Tao Ma
- Key Laboratory of Chemistry in Ethnic Medicinal Resources, Key Laboratory of Natural Products Synthetic Biology of Ethnic Medicinal, Endophytes, State Ethnic Affairs Commission & Ministry of Education, School of Ethnic Medicine, Yunnan Minzu University, Kunming, 650500, China
| | - Xiu-Xiu Qiao
- Key Laboratory of Chemistry in Ethnic Medicinal Resources, Key Laboratory of Natural Products Synthetic Biology of Ethnic Medicinal, Endophytes, State Ethnic Affairs Commission & Ministry of Education, School of Ethnic Medicine, Yunnan Minzu University, Kunming, 650500, China
| | - Ganpeng Li
- Key Laboratory of Chemistry in Ethnic Medicinal Resources, Key Laboratory of Natural Products Synthetic Biology of Ethnic Medicinal, Endophytes, State Ethnic Affairs Commission & Ministry of Education, School of Ethnic Medicine, Yunnan Minzu University, Kunming, 650500, China
| | - Yonghui He
- Key Laboratory of Chemistry in Ethnic Medicinal Resources, Key Laboratory of Natural Products Synthetic Biology of Ethnic Medicinal, Endophytes, State Ethnic Affairs Commission & Ministry of Education, School of Ethnic Medicine, Yunnan Minzu University, Kunming, 650500, China
| | - Xiao-Jing Zhao
- Key Laboratory of Chemistry in Ethnic Medicinal Resources, Key Laboratory of Natural Products Synthetic Biology of Ethnic Medicinal, Endophytes, State Ethnic Affairs Commission & Ministry of Education, School of Ethnic Medicine, Yunnan Minzu University, Kunming, 650500, China
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3
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Pan J, Ho TO, Chen YC, Yang BM, Zhao Y. Enantioselective Construction of Eight-Membered N-Heterocycles from Simple 1,3-Dienes via Pd(0) Lewis Base Catalysis. Angew Chem Int Ed Engl 2024; 63:e202317703. [PMID: 38100515 DOI: 10.1002/anie.202317703] [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: 11/20/2023] [Revised: 12/14/2023] [Accepted: 12/15/2023] [Indexed: 12/17/2023]
Abstract
We report herein an unprecedented enantioselective (4+4) cycloaddition of simple 1,3-dienes with azadienes for the construction of fused eight-membered N-heterocycles. In this transformation, the π-Lewis basic Pd(0) catalyst achieves activation of 1,3-dienes to induce nucleophilic addition to azadienes followed by ring cyclization via a selective terminal allylic substitution. Furthermore, highly efficient and diastereoselective derivatizations of the eight-membered rings provide a facile access to diverse enantiopure fused tetra- to hexacyclic compounds with potential application in medicinal chemistry.
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Affiliation(s)
- Jiaoting Pan
- Joint School of National University of Singapore and Tianjin University, International Campus of Tianjin University Binhai New City, Fuzhou, 350207, China
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore, 117543, Singapore
| | - Takumi Ogawa Ho
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore, 117543, Singapore
| | - Ying-Chun Chen
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Ministry of Education and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu, 610041, P. R. China
| | - Bin-Miao Yang
- Joint School of National University of Singapore and Tianjin University, International Campus of Tianjin University Binhai New City, Fuzhou, 350207, China
| | - Yu Zhao
- Joint School of National University of Singapore and Tianjin University, International Campus of Tianjin University Binhai New City, Fuzhou, 350207, China
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore, 117543, Singapore
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4
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Faraz S, Ali A, Taleb Khan A. FeCl 3-catalyzed regioselective ring-opening of aryl oxirane with 4-hydroxycoumarin for the synthesis of furo[3,2- c]coumarins. Org Biomol Chem 2023; 22:95-105. [PMID: 38050428 DOI: 10.1039/d3ob01721d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/06/2023]
Abstract
The regioselective ring-opening of aryl oxiranes was investigated with various 4-hydroxycoumarins in dimethyl sulfoxide in the presence of 20 mol% FeCl3 as a catalyst at 110 °C. This approach provided a short and concise synthetic route for the regioselective synthesis of 2-aryl-4H-furo[3,2-c] coumarin derivatives. Product formation occurred through regioselective ring-opening of the aryl oxirane at a less hindered site, followed by dehydration and concomitant cyclization. The salient features of our protocol were: cost-effectiveness; short reaction time; step- and atom economy; easy handling; broad scope of substrates; regioselectivity; good-to-excellent yields; non-requirement of dry solvents, co-catalysts, ligands, or any other additives; inert atmospheric conditions.
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Affiliation(s)
- Simra Faraz
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati-781039, India.
| | - Ahmad Ali
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati-781039, India.
| | - Abu Taleb Khan
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati-781039, India.
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5
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LU CC, LI X, SHEN WL, LIU HM, WANG XD. Studies on the highly efficient catalyzation of sesamin to asarinin by phosphotungstic acid. FOOD SCIENCE AND TECHNOLOGY 2023. [DOI: 10.1590/fst.112922] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
| | - Xin LI
- Henan University of Technology, China
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6
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Irie Y, Chen H, Fuse H, Mitsunuma H, Kanai M. Linear‐Selective Allylation of Aldehydes with Simple Alkenes Mediated by Quadruple Hybrid Catalysis. Adv Synth Catal 2022. [DOI: 10.1002/adsc.202200704] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Yu Irie
- The University of Tokyo JAPAN
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7
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Jia S, Ye H, You L. Interplay between chalcogen bonds and dynamic covalent bonds. Org Chem Front 2022. [DOI: 10.1039/d2qo00684g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A combination of chalcogen bonds, one type of emerging non-covalent bonding force, and imine bonds, allow the control of the dynamic covalent chemistry with orbital interactions and the reversal of kinetic and thermodynamic selectivity.
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Affiliation(s)
- Shuaipeng Jia
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Hebo Ye
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, China
| | - Lei You
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, China
- University of Chinese Academy of Sciences, Beijing 100049, China
- Fujian Science & Technology Innovation Laboratory for Optoelectronic Information of China, Fuzhou 350108, China
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8
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Shurupova OV, Rzhevskiy SA, Minaeva LI, Topchiy MA, Asachenko AF. Highly efficient synthesis of 3,4-diarylbutadiene sulfones using Heck–Matsuda reaction. RSC Adv 2022; 12:5517-5521. [PMID: 35425582 PMCID: PMC8981374 DOI: 10.1039/d2ra00078d] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2022] [Accepted: 02/06/2022] [Indexed: 02/02/2023] Open
Abstract
For the first time we describe a general method for the synthesis of previously not synthesized unsymmetrical 3,4-diarylbutadiene sulfones which can be stable convenient precursors for 2,3-diaryl-1,3-butadienes. Our method for arylation of butadiene sulfones via Heck–Matsuda reaction allows to obtain unsymmetrical 3,4-diarylbutadiene sulfones with a variety of alkyl, alkoxy, nitro, ethoxycarbonyl, perfluoroalkyl and halogen substituents (30 examples) in very good yields using readily available reagents and catalysts. An efficient and facile Pd-catalyzed synthesis of 3,4-diarylbutadiene sulfones with high regioselectivity from aryldiazonium salts and butadiene sulfone was developed.![]()
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Affiliation(s)
- Olga V. Shurupova
- A.V. Topchiev Institute of Petrochemical Synthesis, Russian Academy of Sciences, Leninsky Prospect 29, Moscow, 119991, Russia
| | - Sergey A. Rzhevskiy
- A.V. Topchiev Institute of Petrochemical Synthesis, Russian Academy of Sciences, Leninsky Prospect 29, Moscow, 119991, Russia
| | - Lidiya I. Minaeva
- A.V. Topchiev Institute of Petrochemical Synthesis, Russian Academy of Sciences, Leninsky Prospect 29, Moscow, 119991, Russia
| | - Maxim A. Topchiy
- A.V. Topchiev Institute of Petrochemical Synthesis, Russian Academy of Sciences, Leninsky Prospect 29, Moscow, 119991, Russia
| | - Andrey F. Asachenko
- A.V. Topchiev Institute of Petrochemical Synthesis, Russian Academy of Sciences, Leninsky Prospect 29, Moscow, 119991, Russia
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9
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Tomifuji R, Murano S, Kurahashi T, Matsubara S. FeBr3-catalyzed Fully Intermolecular [2+2+2] Cycloaddition of Alkenes. CHEM LETT 2021. [DOI: 10.1246/cl.210552] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Rei Tomifuji
- Department of Material Chemistry, Graduate School of Engineering, Kyoto University, Kyoto 615-8510, Japan
| | - Shunpei Murano
- Department of Material Chemistry, Graduate School of Engineering, Kyoto University, Kyoto 615-8510, Japan
| | - Takuya Kurahashi
- Department of Material Chemistry, Graduate School of Engineering, Kyoto University, Kyoto 615-8510, Japan
| | - Seijiro Matsubara
- Department of Material Chemistry, Graduate School of Engineering, Kyoto University, Kyoto 615-8510, Japan
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10
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Yang F, Hou W, Zhu D, Tang Y, Yu B. A Stereoselective Glycosylation Approach to the Construction of 1,2-trans-β-d-Glycosidic Linkages and Convergent Synthesis of Saponins. Chemistry 2021; 28:e202104002. [PMID: 34859514 DOI: 10.1002/chem.202104002] [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: 11/06/2021] [Indexed: 11/09/2022]
Abstract
Conventional syntheses of 1,2-trans-β-d- or α-l-glycosidic linkages rely mainly on neighboring group participation in the glycosylation reactions. The requirement for a neighboring participation group (NPG) excludes direct glycosylation with (1→2)-linked glycan donors, thus only allowing stepwise assembly of glycans and glycoconjugates containing this type of common motif. Here, a robust glycosylation protocol for the synthesis of 1,2-trans-β-d- or α-l-glycosidic linkages without resorting to NPG is disclosed; it employs an optimal combination of glycosyl N-phenyltrifluroacetimidates as donors, FeCl3 as promoter, and CH2 Cl2 /nitrile as solvent. A broad substrate scope has been demonstrated by glycosylations with 12 (1→2)-linked di- and trisaccharide donors and 13 alcoholic acceptors including eight complex triterpene derivatives. Most of the glycosylation reactions are high yielding and exclusively 1,2-trans selective. Ten representative, naturally occurring triterpene saponins were thus synthesized in a convergent manner after deprotection of the coupled glycosides. Intensive mechanistic studies indicated that this glycosylation proceeds by SN 2-type substitution of the glycosyl α-nitrilium intermediates. Importantly, FeCl3 dissociates and coordinates with nitrile into [Fe(RCN)n Cl2 ]+ and [FeCl4 ]- , and the ferric cationic species coordinates with the alcoholic acceptor to provide a protic species that activates the imidate, meanwhile the poor nucleophilicity of [FeCl4 ]- ensures an uninterruptive role for the glycosidation.
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Affiliation(s)
- Fuzhu Yang
- School of Physical Science and Technology, ShanghaiTech University, 100 Haike Road, Shanghai, 201210, P. R. China.,School of Chemistry and Materials Science, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, 1 Sub-lane Xiangshan, Hangzhou, 310024, P. R. China
| | - Wu Hou
- School of Physical Science and Technology, ShanghaiTech University, 100 Haike Road, Shanghai, 201210, P. R. China
| | - Dapeng Zhu
- State Key Laboratory of Bioorganic and Natural Products Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai, 200032, P. R. China
| | - Yu Tang
- State Key Laboratory of Bioorganic and Natural Products Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai, 200032, P. R. China
| | - Biao Yu
- State Key Laboratory of Bioorganic and Natural Products Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai, 200032, P. R. China.,School of Chemistry and Materials Science, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, 1 Sub-lane Xiangshan, Hangzhou, 310024, P. R. China
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11
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Mari G, Corrieri M, De Crescentini L, Favi G, Santeusanio S, Mantellini F. FeCl
3
‐Catalyzed Formal [3+2] Cyclodimerization of 4‐Carbonyl‐1,2‐diaza‐1,3‐dienes. European J Org Chem 2021. [DOI: 10.1002/ejoc.202101046] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Giacomo Mari
- Department of Biomolecular Sciences Section of Chemistry and Pharmaceutical Technologies University of Urbino “Carlo Bo” Via I Maggetti 24 61029 Urbino (PU) Italy
| | - Matteo Corrieri
- Department of Biomolecular Sciences Section of Chemistry and Pharmaceutical Technologies University of Urbino “Carlo Bo” Via I Maggetti 24 61029 Urbino (PU) Italy
| | - Lucia De Crescentini
- Department of Biomolecular Sciences Section of Chemistry and Pharmaceutical Technologies University of Urbino “Carlo Bo” Via I Maggetti 24 61029 Urbino (PU) Italy
| | - Gianfranco Favi
- Department of Biomolecular Sciences Section of Chemistry and Pharmaceutical Technologies University of Urbino “Carlo Bo” Via I Maggetti 24 61029 Urbino (PU) Italy
| | - Stefania Santeusanio
- Department of Biomolecular Sciences Section of Chemistry and Pharmaceutical Technologies University of Urbino “Carlo Bo” Via I Maggetti 24 61029 Urbino (PU) Italy
| | - Fabio Mantellini
- Department of Biomolecular Sciences Section of Chemistry and Pharmaceutical Technologies University of Urbino “Carlo Bo” Via I Maggetti 24 61029 Urbino (PU) Italy
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12
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Hewitt KA, Herbert CA, Matus AC, Jarvo ER. Nickel-Catalyzed Kumada Cross-Coupling Reactions of Benzylic Sulfonamides. Molecules 2021; 26:5947. [PMID: 34641491 PMCID: PMC8512530 DOI: 10.3390/molecules26195947] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2021] [Revised: 09/22/2021] [Accepted: 09/25/2021] [Indexed: 11/29/2022] Open
Abstract
Herein, we report a Kumada cross-coupling reaction of benzylic sulfonamides. The scope of the transformation includes acyclic and cyclic sulfonamide precursors that cleanly produce highly substituted acyclic fragments. Preliminary data are consistent with a stereospecific mechanism that allows for a diastereoselective reaction.
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Affiliation(s)
| | | | | | - Elizabeth R. Jarvo
- Department of Chemistry, University of California, Irvine, CA 92697-2025, USA; (K.A.H.); (C.A.H.); (A.C.M.)
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13
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Sai Allaka B, Basavoju S, Rama Krishna G. A Green Catalyst Fe(OTs)
3
/SiO
2
for theSynthesis of 4‐Pyrrolo‐12‐oxoquinazolines. ChemistrySelect 2020. [DOI: 10.1002/slct.202004012] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Bhargava Sai Allaka
- Department of Chemistry National Institute of Technology Warangal 506 004, Telangana India
| | - Srinivas Basavoju
- Department of Chemistry National Institute of Technology Warangal 506 004, Telangana India
| | - Gamidi Rama Krishna
- Organic Chemistry Division CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune Maharashtra 411 008 India
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14
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Davis AJ, Watson RB, Nasrallah DJ, Gomez-Lopez JL, Schindler CS. Superelectrophilic aluminium(iii)–ion pairs promote a distinct reaction path for carbonyl–olefin ring-closing metathesis. Nat Catal 2020. [DOI: 10.1038/s41929-020-00499-5] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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15
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Krusenbaum A, Grätz S, Bimmermann S, Hutsch S, Borchardt L. The mechanochemical Scholl reaction as a versatile synthesis tool for the solvent-free generation of microporous polymers. RSC Adv 2020; 10:25509-25516. [PMID: 35518582 PMCID: PMC9055252 DOI: 10.1039/d0ra05279e] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2020] [Accepted: 06/22/2020] [Indexed: 11/21/2022] Open
Abstract
Herein we report the mechanochemical Scholl polymerization of 1,3,5-triphenylbenzene in a high speed ball mill. The reaction is conducted solvent-free, solely using solid FeCl3. The resulting porous polymer was obtained in >99% yield after very short reaction times of only 5 minutes and exhibits a high specific surface area of 658 m2 g-1, which could be further enhanced up to 990 m2 g-1 by liquid assisted grinding. Within this study we illuminate the origin of porosity by investigating the impact of various milling parameters and milling materials, temperature and pressure, and different liquids for LAG as well as post polymer milling. Finally we expand the procedure to different monomers and mills, to present the mechanochemical Scholl reaction as a versatile synthesis tool for porous polymers.
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Affiliation(s)
- Annika Krusenbaum
- Anorganische Chemie I, Ruhr-Universität Bochum Universitätsstraße 150 44801 Bochum Germany
| | - Sven Grätz
- Anorganische Chemie I, Ruhr-Universität Bochum Universitätsstraße 150 44801 Bochum Germany
| | - Sarah Bimmermann
- Anorganische Chemie I, Ruhr-Universität Bochum Universitätsstraße 150 44801 Bochum Germany
| | - Stefanie Hutsch
- Anorganische Chemie I, Ruhr-Universität Bochum Universitätsstraße 150 44801 Bochum Germany
| | - Lars Borchardt
- Anorganische Chemie I, Ruhr-Universität Bochum Universitätsstraße 150 44801 Bochum Germany
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16
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Tsuji T, Tanaka T, Tanaka T, Yazaki R, Ohshima T. Catalytic Aerobic Cross-Dehydrogenative Coupling of Azlactones en Route to α,α-Disubstituted α-Amino Acids. Org Lett 2020; 22:4164-4170. [PMID: 32396012 DOI: 10.1021/acs.orglett.0c01248] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
We developed a catalytic aerobic method to synthesize α,α-disubstituted α-amino acids through cross-dehydrogenative coupling of azlactones. Combining an iron catalyst with a bisoxazolidine ligand resulted in high catalytic performance, and cross-coupling with an indole proceeded smoothly under aerobic conditions. A wide variety of α-aryl and aliphatic amino acid derived azlactones were applied to the present catalysis. In addition, a quaternary carbon could be constructed using oxindole and benzofuranone under aerobic conditions.
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Affiliation(s)
- Taro Tsuji
- Graduate School of Pharmaceutical Sciences, Kyushu University, Maidashi, Higashi-ku, Fukuoka 812-8582, Japan
| | - Takafumi Tanaka
- Graduate School of Pharmaceutical Sciences, Kyushu University, Maidashi, Higashi-ku, Fukuoka 812-8582, Japan
| | - Tsukushi Tanaka
- Graduate School of Pharmaceutical Sciences, Kyushu University, Maidashi, Higashi-ku, Fukuoka 812-8582, Japan
| | - Ryo Yazaki
- Graduate School of Pharmaceutical Sciences, Kyushu University, Maidashi, Higashi-ku, Fukuoka 812-8582, Japan
| | - Takashi Ohshima
- Graduate School of Pharmaceutical Sciences, Kyushu University, Maidashi, Higashi-ku, Fukuoka 812-8582, Japan
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17
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Mishra M, Mohapatra S, Mishra NP, Jena BK, Panda P, Nayak S. Recent advances in iron(III) chloride catalyzed synthesis of heterocycles. Tetrahedron Lett 2019. [DOI: 10.1016/j.tetlet.2019.07.016] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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18
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Ren Z, Su L, Cai S, Lu W, Qiao Y, He P, Ding M. Synthesis of Polysubstituted Pyridine Derivatives via Sequential AlCl
3
‐Catalyzed Condensation/Aza‐Wittig/Isomerization Reactions and a Study of their Antifungal Activities. ASIAN J ORG CHEM 2019. [DOI: 10.1002/ajoc.201900291] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Zhi‐Lin Ren
- College of Chemical EngineeringHubei University of Arts and Science Xiangyang 441053, Hubei Province P. R. of China
- Key Laboratory of Pesticide & Chemical Biology of Ministry of EducationCentral China Normal University Wuhan 430079 P. R. China
| | - Lei Su
- College of Chemical EngineeringHubei University of Arts and Science Xiangyang 441053, Hubei Province P. R. of China
| | - Shuang Cai
- College of Chemical EngineeringHubei University of Arts and Science Xiangyang 441053, Hubei Province P. R. of China
| | - Wen‐Ting Lu
- Key Laboratory of Pesticide & Chemical Biology of Ministry of EducationCentral China Normal University Wuhan 430079 P. R. China
| | - Yue Qiao
- College of Chemical EngineeringHubei University of Arts and Science Xiangyang 441053, Hubei Province P. R. of China
| | - Ping He
- College of Chemical EngineeringHubei University of Arts and Science Xiangyang 441053, Hubei Province P. R. of China
| | - Ming‐Wu Ding
- Key Laboratory of Pesticide & Chemical Biology of Ministry of EducationCentral China Normal University Wuhan 430079 P. R. China
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19
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Tomifuji R, Kurahashi T, Matsubara S. Asymmetric Aza‐Diels–Alder Reaction with Ion‐Paired—Iron Lewis Acid—Brønsted Acid Catalyst. Chemistry 2019; 25:8987-8991. [DOI: 10.1002/chem.201901563] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2019] [Revised: 05/07/2019] [Indexed: 11/11/2022]
Affiliation(s)
- Rei Tomifuji
- Department of Material ChemistryGraduate School of EngineeringKyoto University Kyoto 615-8510 Japan
| | - Takuya Kurahashi
- Department of Material ChemistryGraduate School of EngineeringKyoto University Kyoto 615-8510 Japan
| | - Seijiro Matsubara
- Department of Material ChemistryGraduate School of EngineeringKyoto University Kyoto 615-8510 Japan
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20
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Teranishi S, Maeda K, Kurahashi T, Matsubara S. Diastereoselective Synthesis of 1,3-Oxazolidines via Cationic Iron Porphyrin-catalyzed Cycloaddition of Aziridines with Aldehydes. Org Lett 2019; 21:2593-2596. [DOI: 10.1021/acs.orglett.9b00560] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Satoru Teranishi
- Department of Material Chemistry, Graduate School of Engineering, Kyoto University, Kyoto 615-8510, Japan
| | - Kazuki Maeda
- Department of Material Chemistry, Graduate School of Engineering, Kyoto University, Kyoto 615-8510, Japan
| | - Takuya Kurahashi
- Department of Material Chemistry, Graduate School of Engineering, Kyoto University, Kyoto 615-8510, Japan
| | - Seijiro Matsubara
- Department of Material Chemistry, Graduate School of Engineering, Kyoto University, Kyoto 615-8510, Japan
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