1
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Fang W, Sun BB, Qin SC, Fang LP, Yu XR, Jiang HJ, Yu J. Enantioselective Access to Chiral 2,5-Diketopiperazines via Stereogenic-at-Cobalt(III)-Catalyzed Ugi-4CRs/Cyclization Sequences. J Org Chem 2023; 88:16024-16037. [PMID: 37917565 DOI: 10.1021/acs.joc.3c02013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2023]
Abstract
An asymmetric synthesis of chiral 2,5-diketopiperazines by the Ugi-4CR/cyclization is exhibited. The employment of catalytic anionic chiral Co(III) complexes delivered α-propiolyl aminoamides in high yields with excellent enantioselectivities (31 examples, up to 95% ee). The following treatment of Ugi-adducts with PPh3 leads to chiral 2,5-DKPs without significant loss of enantioselectivities (26 examples, up to 91% ee).
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Affiliation(s)
- Wei Fang
- Department of Applied Chemistry, Anhui Province Engineering Laboratory for Green Pesticide Development and Application, and Anhui Province Key Laboratory of Crop Integrated Pest Management, Anhui Agricultural University, Hefei 230036, P. R. China
| | - Bing-Bing Sun
- Department of Applied Chemistry, Anhui Province Engineering Laboratory for Green Pesticide Development and Application, and Anhui Province Key Laboratory of Crop Integrated Pest Management, Anhui Agricultural University, Hefei 230036, P. R. China
| | - Shi-Cheng Qin
- Department of Applied Chemistry, Anhui Province Engineering Laboratory for Green Pesticide Development and Application, and Anhui Province Key Laboratory of Crop Integrated Pest Management, Anhui Agricultural University, Hefei 230036, P. R. China
| | - Li-Ping Fang
- Department of Applied Chemistry, Anhui Province Engineering Laboratory for Green Pesticide Development and Application, and Anhui Province Key Laboratory of Crop Integrated Pest Management, Anhui Agricultural University, Hefei 230036, P. R. China
| | - Xin-Ran Yu
- Department of Applied Chemistry, Anhui Province Engineering Laboratory for Green Pesticide Development and Application, and Anhui Province Key Laboratory of Crop Integrated Pest Management, Anhui Agricultural University, Hefei 230036, P. R. China
| | - Hua-Jie Jiang
- Department of Applied Chemistry, Anhui Province Engineering Laboratory for Green Pesticide Development and Application, and Anhui Province Key Laboratory of Crop Integrated Pest Management, Anhui Agricultural University, Hefei 230036, P. R. China
| | - Jie Yu
- Department of Applied Chemistry, Anhui Province Engineering Laboratory for Green Pesticide Development and Application, and Anhui Province Key Laboratory of Crop Integrated Pest Management, Anhui Agricultural University, Hefei 230036, P. R. China
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2
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Lian SY, Li N, Tian Y, Peng C, Xie MS, Guo HM. Reversal of Enantioselectivity for the Desymmetrization of meso-1,2-Diols Catalyzed by Pyridine- N-oxides. J Org Chem 2023; 88:13771-13781. [PMID: 37695889 DOI: 10.1021/acs.joc.3c01410] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/13/2023]
Abstract
The desymmetrization of meso-vic-diols with a reversal of enantioselectivity catalyzed by chiral pyridine-N-oxides with l-proline as a single source of chirality is reported. With chiral 3-substituted ArPNO C2c and 2-substituted 4-(dimethylamino)pyridine-N-oxide C3b as catalysts, a wide range of monoesters were obtained with satisfactory results with a complete and controlled switch in stereoselectivity (up to 97:3 and 1:99 er). Chiral six-membered carbocyclic uracil nucleosides were generated with excellent enantioselectivities after derivatization. A series of control experiments and density functional theory (DFT) calculations supported that the reaction proceeded in a bifunctional activated manner, where the N-oxide groups and N-H proton of the amides were vital for catalytic reactivity and stereocontrol. The DFT calculation also supported the distance-directed switching of enantioselectivity, in which the l-prolinamide moiety moved from the C3 to C2 position on the pyridine ring, resulting in the H-bond interaction between the amide N-H and OH group of meso-vic-diol also shifted from one hydroxyl group to another.
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Affiliation(s)
- Sai-Ya Lian
- State Key Laboratory of Antiviral Drugs, Pingyuan Laboratory, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China
| | - Ning Li
- State Key Laboratory of Antiviral Drugs, Pingyuan Laboratory, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China
| | - Yin Tian
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| | - Cheng Peng
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| | - Ming-Sheng Xie
- State Key Laboratory of Antiviral Drugs, Pingyuan Laboratory, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China
| | - Hai-Ming Guo
- State Key Laboratory of Antiviral Drugs, Pingyuan Laboratory, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China
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3
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Yang T, Yang K, Zhang Y, Zhou R, Zhang F, Zhan G, Guo Z. Metabolites with antioxidant and α-glucosidase inhibitory activities produced by the endophytic fungi Aspergillus niger from Pachysandra terminalis. Biosci Biotechnol Biochem 2022; 86:1343-1348. [PMID: 35973685 DOI: 10.1093/bbb/zbac137] [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: 06/21/2022] [Accepted: 08/06/2022] [Indexed: 11/13/2022]
Abstract
One new compound and 13 known compounds were isolated from Aspergillus niger, a plant endophytic fungus of Pachysandra terminalis collected from Qinling Mountains, Xi'an, China. The structure of new compound 1 was classically determined by extensive spectroscopic analysis. Compounds 5, 6, 8, and 14 were firstly reported from Aspergillus, while compound 2 was isolated from A. niger for the first time. All isolated compounds were further evaluated for their antioxidant and α-glucosidase inhibitory activities. Compounds 2 and 3 exhibited significant antioxidant activities with IC50 values of 31.64 μm and 24.32 μm, respectively, similar to the positive control ascorbic acid. Additionally, compound 1 displayed remarkable inhibitory activity against α-glucosidase with an IC50 value of 96.25 μm, which was 3.4-fold more potent than that of the positive control acarbose. Compound 1 has great potential for development as a new lead compound owing to its simple structure and remarkable biological activity.
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Affiliation(s)
- Tao Yang
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, Xi'an 710061, P. R. China
| | - Kailing Yang
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, Xi'an 710061, P. R. China
| | - Yu Zhang
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, Xi'an 710061, P. R. China
| | - Ruixi Zhou
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, Xi'an 710061, P. R. China
| | - Fuxin Zhang
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, Xi'an 710061, P. R. China
| | - Guanqun Zhan
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, Xi'an 710061, P. R. China
| | - Zengjun Guo
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, Xi'an 710061, P. R. China
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4
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Fu X, Yan Y, Sun H, Li S, Huang J. Natural Product-Inspired Chiral Ligand Design: Aloperine and N-Substituted Aloperines-Induced Pd-Catalyzed Asymmetric Hydroarylation of Ketimines. J Org Chem 2022; 87:9565-9575. [PMID: 35834751 DOI: 10.1021/acs.joc.2c00554] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A naturally occurring alkaloid aloperine was utilized as a chiral skeleton for the development of new ligands/catalysts in asymmetric synthesis. A number of N-substituted aloperines have been prepared, and a Pd-catalyzed asymmetric hydroarylation of ketimines using these chiral 1,3-diamine ligands was reported. A range of chiral sulfonyl amides were prepared in high yields and enantioselectivities. The stereoselectivity and structure relationships of aloperines have been studied. In addition, preliminary studies on the desymmetrization of meso-anhydride have also shown that these diamines have good potential in organocatalysis. These discoveries would provide a new future development for natural product-inspired chiral ligand design and developments.
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Affiliation(s)
- Xuegang Fu
- School of Pharmaceutical Science and Technology, Tianjin University, 92 Weijin Road, Nankai District, Tianjin 300072, P. R. China.,Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, P. R. China.,Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, P. R. China
| | - Yuting Yan
- School of Pharmaceutical Science and Technology, Tianjin University, 92 Weijin Road, Nankai District, Tianjin 300072, P. R. China.,Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, P. R. China.,Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, P. R. China
| | - Hexin Sun
- School of Pharmaceutical Science and Technology, Tianjin University, 92 Weijin Road, Nankai District, Tianjin 300072, P. R. China.,Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, P. R. China.,Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, P. R. China
| | - Siying Li
- School of Pharmaceutical Science and Technology, Tianjin University, 92 Weijin Road, Nankai District, Tianjin 300072, P. R. China.,Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, P. R. China.,Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, P. R. China
| | - Jianhui Huang
- School of Pharmaceutical Science and Technology, Tianjin University, 92 Weijin Road, Nankai District, Tianjin 300072, P. R. China.,Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, P. R. China.,Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, P. R. China
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5
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Mansawat W, Yukhet P, Bhanthumnavin W, Reiser O, Vilaivan T. Kinetic Resolution of dl-Hydrobenzoins Catalyzed by Copper(II) Complexes of C2-Symmetric Thiophene-Derived Ligands. Synlett 2022. [DOI: 10.1055/a-1815-7091] [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
C2 symmetrical chiral amino alcohol ligands with a central thiophene moiety have shown to be effective in combination with CuCl2 in the asymmetric acylation of dl-hydrobenzoins. In contrast to previously developed chiral ligands, readily available acetyl chloride and acetic anhydride can be used as reagents in addition to the benzoyl chloride giving rise to the corresponding monoacylated products in up to 99 %ee (S = 532).
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Affiliation(s)
- Woraluk Mansawat
- Department of Chemistry, Chulalongkorn University, Bangkok, Thailand
| | - Phanomsak Yukhet
- Department of Chemistry, Chulalongkorn University, Bangkok, Thailand
| | | | - Oliver Reiser
- Organische Chemie, Universität Regensburg, Regensburg, Germany
| | - Tirayut Vilaivan
- Department of Chemistry, Chulalongkorn University, Bangkok, Thailand
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6
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Yang JS, Lu K, Li CX, Zhao ZH, Zhang XM, Zhang FM, Tu YQ. Chiral 1,2,3-Triazolium Salt Catalyzed Asymmetric Mono- and Dialkylation of 2,5-Diketopiperazines with the Construction of Tetrasubstituted Carbon Centers. Angew Chem Int Ed Engl 2022; 61:e202114129. [PMID: 34981881 DOI: 10.1002/anie.202114129] [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: 10/08/2021] [Indexed: 11/07/2022]
Abstract
Novel asymmetric mono- and dialkylation reactions of α-substituted 2,5-diketopiperazines catalyzed by new chiral spirocyclic-amide-derived triazolium organocatalysts have been developed, resulting in a range of enantioenriched 2,5-diketopiperazine derivatives containing one or two tetrasubstituted carbon stereocenters. The reactions feature high yields (up to 98%), and excellent cis-diastereo- and enantioselectivities (up to >20:1 dr, >99 % ee), and they provide a new asymmetric synthetic approach to important functionalized 2,5-diketopiperazine skeletons. Furthermore, a possible reaction mechanism was proposed based on both control experiments and extensive DFT calculations.
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Affiliation(s)
- Ju-Song Yang
- State Key Laboratory of Applied Organic Chemistry and College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, P. R. China
| | - Ka Lu
- State Key Laboratory of Applied Organic Chemistry and College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, P. R. China
| | - Chen-Xiao Li
- State Key Laboratory of Applied Organic Chemistry and College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, P. R. China
| | - Zu-Hang Zhao
- State Key Laboratory of Applied Organic Chemistry and College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, P. R. China
| | - Xiao-Ming Zhang
- State Key Laboratory of Applied Organic Chemistry and College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, P. R. China
| | - Fu-Min Zhang
- State Key Laboratory of Applied Organic Chemistry and College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, P. R. China
| | - Yong-Qiang Tu
- State Key Laboratory of Applied Organic Chemistry and College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, P. R. China.,School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, Shanghai Jiao Tong University, Shanghai, 200240, P. R. China
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7
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Yang J, Lu K, Li C, Zhao Z, Zhang X, Zhang F, Tu Y. Chiral 1,2,3‐Triazolium Salt Catalyzed Asymmetric Mono‐ and Dialkylation of 2,5‐Diketopiperazines with the Construction of Tetrasubstituted Carbon Centers. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202114129] [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)
- Ju‐Song Yang
- State Key Laboratory of Applied Organic Chemistry and College of Chemistry and Chemical Engineering Lanzhou University Lanzhou 730000 P. R. China
| | - Ka Lu
- State Key Laboratory of Applied Organic Chemistry and College of Chemistry and Chemical Engineering Lanzhou University Lanzhou 730000 P. R. China
| | - Chen‐Xiao Li
- State Key Laboratory of Applied Organic Chemistry and College of Chemistry and Chemical Engineering Lanzhou University Lanzhou 730000 P. R. China
| | - Zu‐Hang Zhao
- State Key Laboratory of Applied Organic Chemistry and College of Chemistry and Chemical Engineering Lanzhou University Lanzhou 730000 P. R. China
| | - Xiao‐Ming Zhang
- State Key Laboratory of Applied Organic Chemistry and College of Chemistry and Chemical Engineering Lanzhou University Lanzhou 730000 P. R. China
| | - Fu‐Min Zhang
- State Key Laboratory of Applied Organic Chemistry and College of Chemistry and Chemical Engineering Lanzhou University Lanzhou 730000 P. R. China
| | - Yong‐Qiang Tu
- State Key Laboratory of Applied Organic Chemistry and College of Chemistry and Chemical Engineering Lanzhou University Lanzhou 730000 P. R. China
- School of Chemistry and Chemical Engineering Frontiers Science Center for Transformative Molecules Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs Shanghai Jiao Tong University Shanghai 200240 P. R. China
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8
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Mostinski Y, Lankri D, Konovalov Y, Nataf R, Tsvelikhovsky D. Proline-promoted dehydroxylation of α-ketols. Chem Sci 2019; 10:9345-9350. [PMID: 32110298 PMCID: PMC7006627 DOI: 10.1039/c9sc02543j] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2019] [Accepted: 08/17/2019] [Indexed: 11/24/2022] Open
Abstract
A new single-step proline-potassium acetate promoted reductive dehydroxylation of α-ketols is reported. We introduce the unexplored reactivity of proline and, for the first time, reveal its ability to function as a reducing agent. The developed metal-free and open-flask operation generally results in good yields. Our protocol allows the challenging selective dehydroxylation of hydroxyketones without affecting other functional groups.
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Affiliation(s)
- Yelena Mostinski
- The Institute for Drug Research , Faculty of Medicine , The Hebrew University of Jerusalem , Jerusalem 9112102 , Israel .
| | - David Lankri
- The Institute for Drug Research , Faculty of Medicine , The Hebrew University of Jerusalem , Jerusalem 9112102 , Israel .
| | - Yana Konovalov
- The Institute for Drug Research , Faculty of Medicine , The Hebrew University of Jerusalem , Jerusalem 9112102 , Israel .
| | - Riva Nataf
- The Institute for Drug Research , Faculty of Medicine , The Hebrew University of Jerusalem , Jerusalem 9112102 , Israel .
| | - Dmitry Tsvelikhovsky
- The Institute for Drug Research , Faculty of Medicine , The Hebrew University of Jerusalem , Jerusalem 9112102 , Israel .
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9
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Hashimoto Y, Michimuko C, Yamaguchi K, Nakajima M, Sugiura M. Selective Monoacylation of Diols and Asymmetric Desymmetrization of Dialkyl meso-Tartrates Using 2-Pyridyl Esters as Acylating Agents and Metal Carboxylates as Catalysts. J Org Chem 2019; 84:9313-9321. [PMID: 31199140 DOI: 10.1021/acs.joc.9b00827] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
With 2-pyridyl benzoates as acylating agents and Zn(OAc)2 as a catalyst, 1,2-diols, 1,3-diols, and catechol were selectively monoacylated. Furthermore, the highly enantioselective desymmetrization of meso-tartrates was achieved for the first time, utilizing 2-pyridyl esters and NiBr2/AgOPiv/Ph-BOX in CH3CN or CuCl2/AgOPiv/Ph-BOX in EtOAc catalyst systems (up to 96% ee). The latter catalyst system was also effective for the kinetic resolution of dibenzyl dl-tartrate.
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Affiliation(s)
- Yuki Hashimoto
- Faculty of Pharmaceutical Sciences , Sojo University , 4-22-1 Ikeda , Nishi-ku, Kumamoto 860-0082 , Japan.,Graduate School of Pharmaceutical Sciences , Kumamoto University , 5-1 Oe-honmachi , Chuo-ku, Kumamoto 862-0973 , Japan
| | - Chiaki Michimuko
- Graduate School of Pharmaceutical Sciences , Kumamoto University , 5-1 Oe-honmachi , Chuo-ku, Kumamoto 862-0973 , Japan
| | - Koki Yamaguchi
- Faculty of Pharmaceutical Sciences , Sojo University , 4-22-1 Ikeda , Nishi-ku, Kumamoto 860-0082 , Japan
| | - Makoto Nakajima
- Graduate School of Pharmaceutical Sciences , Kumamoto University , 5-1 Oe-honmachi , Chuo-ku, Kumamoto 862-0973 , Japan
| | - Masaharu Sugiura
- Faculty of Pharmaceutical Sciences , Sojo University , 4-22-1 Ikeda , Nishi-ku, Kumamoto 860-0082 , Japan
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10
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Hu X, Yin Z, Guo J, Borovkov V, Shan Z. An Efficient Method for Long‐Term Configurational Stabilization of Chiral Tricyclic Dipeptide via Heterocomplexation Approach. ChemistrySelect 2019. [DOI: 10.1002/slct.201900099] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Xiaoyun Hu
- College of Chemistry and MaterialsSouth-Central University for Nationalities Wuhan China
| | - Zhongyou Yin
- College of Chemistry and MaterialsSouth-Central University for Nationalities Wuhan China
| | - Jianxin Guo
- College of Chemistry and MaterialsSouth-Central University for Nationalities Wuhan China
| | - Victor Borovkov
- College of Chemistry and MaterialsSouth-Central University for Nationalities Wuhan China
| | - Zixing Shan
- College of Chemistry and Molecular SciencesWuhan University Wuhan China
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11
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Chinnaraja E, Arunachalam R, Suresh E, Sen SK, Natarajan R, Subramanian PS. Binuclear Double-Stranded Helicates and Their Catalytic Applications in Desymmetrization of Mesodiols. Inorg Chem 2019; 58:4465-4479. [PMID: 30929448 DOI: 10.1021/acs.inorgchem.8b03643] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
The ligand L1 of 4-methyl-2,6-diformylphenol and L2 of 4- tert-butyl-2,6-diformylphenol are synthesized through Schiff base condensation with rac-, ( R)-(+), or ( S)-(-)-1,1'-binaphthyl-2,2'-diamine (BNDA). As a result, the racemic L1rac, L2rac, and enantiopure L1RR, L1SS, L2RR, and L2SS ligands are obtained incorporating Cu(II) and Zn(II) salts by a simple one-pot metal template method. The series of dinuclear complexes of [M2LX2] (here, M = Cu2+, Zn2+; X = acetate ion, chloride ion; L = L1RR, L1SS, L1rac, L2RR, L2SS, L2rac) formulas are obtained in common. Among them, the single crystal X-ray structures for [Zn2L1rac(OAc)2] and [Zn2L1SSCl2] complexes are obtained. The detailed crystal structure and the chiroptical studies performed on these complexes dictates a self-sorting behavior in their self-assembly process and illustrate a chirality transfer from the ligand to the metal center on the complexes. The enantiopure dinuclear complexes [M2LRRX2] and [M2LSSX2] generate enantiopure ΛΛ and ΔΔ isomers, respectively, but the racemic complexes produce only homochiral ΛΛ and ΔΔ assemblies. The detailed studies based on UFLC (Ultra Fast Liquid Chromatography), CD, and single crystal X-ray structure together show the absence of heterochiral ΛΔ mesocate. All these complexes are adapted as catalysts for desymmetrization of various mesodiols, and the enantiopure complexes are found to give efficient enantioselectivity in desymmetrization of mesodiols with benzoyl chloride to monobenzoylated ester providing 98% yield and 92% ee.
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Affiliation(s)
- Eswaran Chinnaraja
- Academy of Scientific and Innovative Research (AcSIR) , Chennai 600113 , Tamil Nadu , India
| | - Rajendran Arunachalam
- Academy of Scientific and Innovative Research (AcSIR) , Chennai 600113 , Tamil Nadu , India
| | - Eringathodi Suresh
- Academy of Scientific and Innovative Research (AcSIR) , Chennai 600113 , Tamil Nadu , India
| | - Shovan K Sen
- Academy of Scientific and Innovative Research (AcSIR) , Chennai 600113 , Tamil Nadu , India.,Organic & Medicinal Chemistry Division , CSIR-Indian Institute of Chemical Biology , Kolkata 700032 , West Bengal , India
| | - Ramalingam Natarajan
- Academy of Scientific and Innovative Research (AcSIR) , Chennai 600113 , Tamil Nadu , India.,Organic & Medicinal Chemistry Division , CSIR-Indian Institute of Chemical Biology , Kolkata 700032 , West Bengal , India
| | - Palani S Subramanian
- Academy of Scientific and Innovative Research (AcSIR) , Chennai 600113 , Tamil Nadu , India
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12
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Abstract
A simple total synthesis of herqulines B and C is reported, modeled on the reductive biosynthesis reported previously by other researchers. Commencing from tyrosine, these alkaloids were fashioned through a dimerization, macrocyclization, and four consecutive reductions. Emerging from these studies are strategic insights on the synthesis of these strained alkaloids, as well as mild conditions for the exhaustive reduction of diketopiperizines.
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Affiliation(s)
- Chi He
- Department of Chemistry , The Scripps Research Institute , 10550 North Torrey Pines Road , La Jolla , California 92037 , United States
| | - Thomas P Stratton
- Department of Chemistry , The Scripps Research Institute , 10550 North Torrey Pines Road , La Jolla , California 92037 , United States
| | - Phil S Baran
- Department of Chemistry , The Scripps Research Institute , 10550 North Torrey Pines Road , La Jolla , California 92037 , United States
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13
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Chauhan N, Pradhan S, Ghorai MK. Stereospecific Synthesis of Highly Substituted Piperazines via an One-Pot Three Component Ring-Opening Cyclization from N-Activated Aziridines, Anilines, and Propargyl Carbonates. J Org Chem 2018; 84:1757-1765. [DOI: 10.1021/acs.joc.8b02259] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Navya Chauhan
- Department of Chemistry, Indian Institute of Technology, Kanpur 208016, India
| | - Sajan Pradhan
- Department of Chemistry, Indian Institute of Technology, Kanpur 208016, India
| | - Manas K Ghorai
- Department of Chemistry, Indian Institute of Technology, Kanpur 208016, India
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14
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Lembke C, Stettin D, Speck F, Ueberschaar N, De Decker S, Vyverman W, Pohnert G. Attraction Pheromone of The Benthic Diatom Seminavis robusta: Studies on Structure-Activity Relationships. J Chem Ecol 2018. [PMID: 29536294 DOI: 10.1007/s10886-018-0944-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Abstract
Recently the first pheromone of a marine diatom was identified to be the diketopiperazine (S,S)-diproline. This compound facilitates attraction between mating partners in the benthic diatom Seminavis robusta. Interestingly, sexualized S. robusta cells are attracted to both the natural pheromone (S,S)-diproline as well as to its enantiomer (R,R)-diproline. Usually stereospecificity is a prerequisite for successful substrate-receptor interactions, and especially pheromone perception is often highly enantioselective. Here we introduce a structure-activity relationship study, to learn more about the principles of pheromone reception in diatoms. We analyzed the activity of nine different diketopiperazines in attraction and interference assays. The pheromone diproline itself, as well as a pipecolic acid derived diketopiperazine with two expanded aliphatic ring systems, showed the highest attractivity. Hydroxylatoin of the aliphatic rings abolished any bioactivity. Diketopiperazines derived from acyclic amino acids were not attrative as well. All stereoisomers of both the diproline and the pipecolic acid derived diketopiperazine were purified by enantioselective high-performance liquid chromatography, and application in bioactivity tests confirmed that attraction pheromone perception in this diatom is indeed not stereospecific. However, the lack of activity of diketopiperazines derived from acyclic amino acids suggests a specificity that prevents misguidance to sources of other naturally occurring diketopiperazines.
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Affiliation(s)
- Christine Lembke
- Institute for Inorganic and Analytical Chemistry, Bioorganic Analytics, Friedrich-Schiller-Universität Jena, Lessingstrasse 8, D-07743, Jena, Germany
| | - Daniel Stettin
- Institute for Inorganic and Analytical Chemistry, Bioorganic Analytics, Friedrich-Schiller-Universität Jena, Lessingstrasse 8, D-07743, Jena, Germany
| | - Franziska Speck
- Institute for Inorganic and Analytical Chemistry, Bioorganic Analytics, Friedrich-Schiller-Universität Jena, Lessingstrasse 8, D-07743, Jena, Germany
| | - Nico Ueberschaar
- Institute for Inorganic and Analytical Chemistry, Bioorganic Analytics, Friedrich-Schiller-Universität Jena, Lessingstrasse 8, D-07743, Jena, Germany
| | - Sam De Decker
- Laboratory of Protistology and Aquatic Ecology, Department of Biology, University Gent, Krijgslaan 281 S8, 9000, Gent, Belgium
| | - Wim Vyverman
- Laboratory of Protistology and Aquatic Ecology, Department of Biology, University Gent, Krijgslaan 281 S8, 9000, Gent, Belgium
| | - Georg Pohnert
- Institute for Inorganic and Analytical Chemistry, Bioorganic Analytics, Friedrich-Schiller-Universität Jena, Lessingstrasse 8, D-07743, Jena, Germany. .,Max Planck Institute for Chemical Ecology, Hans-Knöll-Str. 8, D-07745, Jena, Germany.
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15
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Jida M, Ballet S. An Efficient One-Pot Synthesis of Chiral N-Protected 3-Substituted (Diketo)piperazines via Ugi-4CR/De-Boc/Cyclization Process. ChemistrySelect 2018. [DOI: 10.1002/slct.201702943] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Mouhamad Jida
- Research Group of Organic Chemistry; Departments of Chemistry and Bioengineering Sciences; Vrije Universiteit Brussel; Pleinlaan 2 B-1050 Brussels Belgium
| | - Steven Ballet
- Research Group of Organic Chemistry; Departments of Chemistry and Bioengineering Sciences; Vrije Universiteit Brussel; Pleinlaan 2 B-1050 Brussels Belgium
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16
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Jida M, Ballet S. Efficient one-pot synthesis of enantiomerically pure N-protected-α-substituted piperazines from readily available α-amino acids. NEW J CHEM 2018. [DOI: 10.1039/c7nj04039c] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new pathway towards enantiomerically pure 3-substituted piperazines, bearing a benzyl protecting group, has been developed in good overall yields (83–92%), starting from commercially available N-protected amino acids.
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Affiliation(s)
- Mouhamad Jida
- Research Group of Organic Chemistry
- Departments of Chemistry and Bioengineering Sciences
- Vrije Universiteit Brussel
- Brussels
- Belgium
| | - Steven Ballet
- Research Group of Organic Chemistry
- Departments of Chemistry and Bioengineering Sciences
- Vrije Universiteit Brussel
- Brussels
- Belgium
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17
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Pétry N, Benakki H, Clot E, Retailleau P, Guenoun F, Asserar F, Sekkat C, Métro TX, Martinez J, Lamaty F. A mechanochemical approach to access the proline-proline diketopiperazine framework. Beilstein J Org Chem 2017; 13:2169-2178. [PMID: 29114324 PMCID: PMC5669228 DOI: 10.3762/bjoc.13.217] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2017] [Accepted: 09/21/2017] [Indexed: 12/15/2022] Open
Abstract
Ball milling was exploited to prepare a substituted proline building block by mechanochemical nucleophilic substitution. Subsequently, the mechanocoupling of hindered proline amino acid derivatives was developed to provide proline-proline dipeptides under solvent-free conditions. A deprotection-cyclization sequence yielded the corresponding diketopiperazines that were obtained with a high stereoselectivity which could be explained by DFT calculations. Using this method, an enantiopure disubstituted Pro-Pro diketopiperazine was synthesized in 4 steps, making 5 new bonds using a ball mill.
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Affiliation(s)
- Nicolas Pétry
- Institut des Biomolécules Max Mousseron (IBMM), UMR 5247, CNRS, Université de Montpellier, ENSCM, Campus Triolet, Place Eugène Bataillon, 34095 Montpellier Cedex 5, France
| | - Hafid Benakki
- Institut des Biomolécules Max Mousseron (IBMM), UMR 5247, CNRS, Université de Montpellier, ENSCM, Campus Triolet, Place Eugène Bataillon, 34095 Montpellier Cedex 5, France.,Laboratory of Chemistry Biology Applied to the Environment, Faculty of Sciences, Moulay Ismail University BP: 11201 Zitoune Meknès, Morocco
| | - Eric Clot
- Institut Charles Gerhardt, UMR 5253 CNRS-UM-ENSCM, Université de Montpellier, Place Eugène Bataillon, cc 1501, 34095 Montpellier Cedex 5, France
| | - Pascal Retailleau
- Institut de Chimie des Substances Naturelles, CNRS UPR 2301, Université Paris-Saclay, 1 Avenue de la Terrasse, 91198 Gif-sur-Yvette, France
| | - Farhate Guenoun
- Laboratory of Chemistry Biology Applied to the Environment, Faculty of Sciences, Moulay Ismail University BP: 11201 Zitoune Meknès, Morocco
| | - Fatima Asserar
- Laboratory of Chemistry Biology Applied to the Environment, Faculty of Sciences, Moulay Ismail University BP: 11201 Zitoune Meknès, Morocco
| | - Chakib Sekkat
- Laboratory of Chemistry Biology Applied to the Environment, Faculty of Sciences, Moulay Ismail University BP: 11201 Zitoune Meknès, Morocco
| | - Thomas-Xavier Métro
- Institut des Biomolécules Max Mousseron (IBMM), UMR 5247, CNRS, Université de Montpellier, ENSCM, Campus Triolet, Place Eugène Bataillon, 34095 Montpellier Cedex 5, France
| | - Jean Martinez
- Institut des Biomolécules Max Mousseron (IBMM), UMR 5247, CNRS, Université de Montpellier, ENSCM, Campus Triolet, Place Eugène Bataillon, 34095 Montpellier Cedex 5, France
| | - Frédéric Lamaty
- Institut des Biomolécules Max Mousseron (IBMM), UMR 5247, CNRS, Université de Montpellier, ENSCM, Campus Triolet, Place Eugène Bataillon, 34095 Montpellier Cedex 5, France
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18
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Mandai H, Yasuhara H, Fujii K, Shimomura Y, Mitsudo K, Suga S. Desymmetrization of meso-1,2-Diols by a Chiral N,N-4-Dimethylaminopyridine Derivative Containing a 1,1′-Binaphthyl Unit: Importance of the Hydroxy Groups. J Org Chem 2017; 82:6846-6856. [DOI: 10.1021/acs.joc.7b00992] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Hiroki Mandai
- Division of Applied
Chemistry,
Graduate School of Natural Science and Technology, Okayama University, 3-1-1 Tsushima-naka, Kita-ku, Okayama 700-8530, Japan
| | - Hiroshi Yasuhara
- Division of Applied
Chemistry,
Graduate School of Natural Science and Technology, Okayama University, 3-1-1 Tsushima-naka, Kita-ku, Okayama 700-8530, Japan
| | - Kazuki Fujii
- Division of Applied
Chemistry,
Graduate School of Natural Science and Technology, Okayama University, 3-1-1 Tsushima-naka, Kita-ku, Okayama 700-8530, Japan
| | - Yukihito Shimomura
- Division of Applied
Chemistry,
Graduate School of Natural Science and Technology, Okayama University, 3-1-1 Tsushima-naka, Kita-ku, Okayama 700-8530, Japan
| | - Koichi Mitsudo
- Division of Applied
Chemistry,
Graduate School of Natural Science and Technology, Okayama University, 3-1-1 Tsushima-naka, Kita-ku, Okayama 700-8530, Japan
| | - Seiji Suga
- Division of Applied
Chemistry,
Graduate School of Natural Science and Technology, Okayama University, 3-1-1 Tsushima-naka, Kita-ku, Okayama 700-8530, Japan
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19
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Prishchenko AA, Livantsov MV, Novikova OP, Livantsova LI, Petrosyan VS. Synthesis of new mono- and bisorganophosphorus proline derivatives with P-C-N moieties. HETEROATOM CHEMISTRY 2016. [DOI: 10.1002/hc.21358] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
| | | | - Olga P. Novikova
- Department of Chemistry; M.V. Lomonosov Moscow State University; Moscow Russia
| | | | - Valery S. Petrosyan
- Department of Chemistry; M.V. Lomonosov Moscow State University; Moscow Russia
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20
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Hu X, Yang Y, Shi S, Shan Z. Effects of solvent on inclusion complexation of a chiral dipeptide toward racemic BINOL. Chirality 2016; 28:784-788. [DOI: 10.1002/chir.22658] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Xiaoyun Hu
- College of Chemistry and Materials; South-Central University for Nationalities; Wuhan Republic of China
| | - Yuyuan Yang
- College of Chemistry and Materials; South-Central University for Nationalities; Wuhan Republic of China
| | - Shuai Shi
- College of Chemistry and Materials; South-Central University for Nationalities; Wuhan Republic of China
| | - Zixing Shan
- College of Chemistry and Molecular Sciences; Wuhan University; Wuhan Republic of China
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21
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Prishchenko AA, Livantsov MV, Novikova OP, Livantsova LI, Petrosyan VS. Synthesis of mono-and diphosphorus-substituted proline derivatives containing P–C–N fragments. Russ Chem Bull 2016. [DOI: 10.1007/s11172-016-1519-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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22
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Huang WX, Liu LJ, Wu B, Feng GS, Wang B, Zhou YG. Synthesis of Chiral Piperazines via Hydrogenation of Pyrazines Activated by Alkyl Halides. Org Lett 2016; 18:3082-5. [PMID: 27295391 DOI: 10.1021/acs.orglett.6b01190] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A facile method has been developed for the synthesis of chiral piperazines through Ir-catalyzed hydrogenation of pyrazines activated by alkyl halides, giving a wide range of chiral piperazines including 3-substituted as well as 2,3- and 3,5-disubstituted ones with up to 96% ee. The high enantioselectivity, easy scalability, and concise drug synthesis demonstrate the practical utility.
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Affiliation(s)
- Wen-Xue Huang
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences , 457 Zhongshan Road, Dalian 116023, P. R. China.,State Key Laboratory of Fine Chemicals, School of Pharmaceutical Science and Technology, Dalian University of Technology , 2 Linggong Road, Dalian 116024, P. R. China
| | - Lian-Jin Liu
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences , 457 Zhongshan Road, Dalian 116023, P. R. China
| | - Bo Wu
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences , 457 Zhongshan Road, Dalian 116023, P. R. China
| | - Guang-Shou Feng
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences , 457 Zhongshan Road, Dalian 116023, P. R. China
| | - Baomin Wang
- State Key Laboratory of Fine Chemicals, School of Pharmaceutical Science and Technology, Dalian University of Technology , 2 Linggong Road, Dalian 116024, P. R. China
| | - Yong-Gui Zhou
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences , 457 Zhongshan Road, Dalian 116023, P. R. China
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23
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Chiral copper-catalyzed asymmetric monoarylation of vicinal diols with diaryliodonium salts. ACTA ACUST UNITED AC 2016. [DOI: 10.1016/j.tetasy.2016.01.007] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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24
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l-Proline derived arylmethanamine ligands and their application in the copper-catalyzed asymmetric Henry reaction: a rare example of a Cu-complex with a dicopper tetraacetate core. ACTA ACUST UNITED AC 2015. [DOI: 10.1016/j.tetasy.2015.08.002] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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25
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Chang MY, Tsai CY, Chan CK. mCPBA-mediated conjugation of dibenzosuberenone and amines or carboxylic acids. Tetrahedron 2015. [DOI: 10.1016/j.tet.2014.12.012] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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26
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Firth JD, O'Brien P, Ferris L. Revisiting the sparteine surrogate: development of a resolution route to the (-)-sparteine surrogate. Org Biomol Chem 2014; 12:9357-65. [PMID: 25297971 DOI: 10.1039/c4ob01694g] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
The improved performance of the sparteine surrogate compared to sparteine in a range of applications has highlighted the need to develop an approach to the (-)-sparteine surrogate, previously inaccessible in gram-quantities. A multi-gram scale, chromatography-free synthesis of the racemic sparteine surrogate and its resolution via diastereomeric salt formation with (-)-O,O'-di-p-toluoyl-l-tartaric acid is reported. Resolution on a 10.0 mmol scale gave the diastereomeric salts in 33% yield from which (-)-sparteine surrogate of 93 : 7 er was generated. This work solves a key limitation: either enantiomer of the sparteine surrogate can now be readily accessed.
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Affiliation(s)
- James D Firth
- Department of Chemistry, University of York, Heslington, York YO10 5DD, UK.
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27
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Canipa SJ, Stute A, O'Brien P. Use of copper(II)/diamine catalysts in the desymmetrisation of meso-diols and asymmetric Henry reactions: comparison of (−)-sparteine and (+)-sparteine surrogates. Tetrahedron 2014. [DOI: 10.1016/j.tet.2014.06.117] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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28
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Li Y, He Y, Chen F, Fan Q. Asymmetric Hydrogenation of 2-Aryl-5,6-dihydropyrazine Derivatives with Chiral Cationic Ruthenium Diamine Catalysts. CHINESE J CHEM 2014. [DOI: 10.1002/cjoc.201400422] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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29
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Frenkel J, Wess C, Vyverman W, Pohnert G. Chiral separation of a diketopiperazine pheromone from marine diatoms using supercritical fluid chromatography. J Chromatogr B Analyt Technol Biomed Life Sci 2014; 951-952:58-61. [DOI: 10.1016/j.jchromb.2013.12.040] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2013] [Revised: 12/23/2013] [Accepted: 12/28/2013] [Indexed: 11/26/2022]
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30
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M. Beauchemin A, Das Neves N, Raymond M. Expedient Synthesis of 2-Oxopiperazines Using a SN2 / Cope-Type Hydroamination Sequence. HETEROCYCLES 2014. [DOI: 10.3987/com-13-s(s)18] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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31
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Zhang H, Feng D, Sheng H, Ma X, Wan J, Tang Q. Asymmetric transfer hydrogenation of unsymmetrical benzils. RSC Adv 2014. [DOI: 10.1039/c3ra47129b] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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32
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C2-Symmetric hemiaminal ethers and diamines: new ligands for copper-catalyzed desymmetrization of meso-1,2-diols and asymmetric Henry reactions. ACTA ACUST UNITED AC 2013. [DOI: 10.1016/j.tetasy.2013.09.011] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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33
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Enríquez-García A, Kündig EP. Desymmetrisation of meso-diols mediated by non-enzymatic acyl transfer catalysts. Chem Soc Rev 2013; 41:7803-31. [PMID: 23007376 DOI: 10.1039/c2cs35049a] [Citation(s) in RCA: 95] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Complementary to enzymatic methods, catalytic enantioselective desymmetrisation of meso-diols (EDMD) by small molecule catalysts has emerged as a powerful tool that provides highly enantioenriched materials of considerable value in organic synthesis. This review traces the evolution of easily accessible catalysts used in the EDMD and compares their performance with the existing enzymatic methods.
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34
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Gillard J, Frenkel J, Devos V, Sabbe K, Paul C, Rempt M, Inzé D, Pohnert G, Vuylsteke M, Vyverman W. Metabolomik unterstützt die Strukturaufklärung eines Sexualpheromons von Kieselalgen. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201208175] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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35
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Gillard J, Frenkel J, Devos V, Sabbe K, Paul C, Rempt M, Inzé D, Pohnert G, Vuylsteke M, Vyverman W. Metabolomics enables the structure elucidation of a diatom sex pheromone. Angew Chem Int Ed Engl 2012; 52:854-7. [PMID: 23315901 DOI: 10.1002/anie.201208175] [Citation(s) in RCA: 93] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2012] [Indexed: 11/07/2022]
Affiliation(s)
- Jeroen Gillard
- Laboratory of Protistology and Aquatic Ecology, Department of Biology, Ghent University, 9000 Gent, Belgium
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36
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An efficient entry to highly substituted chiral 2-oxopiperazines from α-amino acids via iodocyclization. Tetrahedron 2012. [DOI: 10.1016/j.tet.2012.09.109] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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37
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Díaz-de-Villegas MD, Gálvez JA, Badorrey R, López-Ram-de-Víu MP. Organocatalyzed enantioselective desymmetrization of diols in the preparation of chiral building blocks. Chemistry 2012; 18:13920-35. [PMID: 23033139 DOI: 10.1002/chem.201202264] [Citation(s) in RCA: 74] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Desymmetrization of diols is a powerful tool to the synthesis of chiral building blocks. Among the different approaches to perform discrimination between both enantiotopic hydroxyl groups, the organocatalytic approach has gained importance in the last years. A diverse range of organocatalysts has been used to efficiently promote this enantioselective transformation and this Minireview examines the different contributions in this field.
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Affiliation(s)
- María D Díaz-de-Villegas
- Departamento de Catálisis y Procesos Catalíticos, Instituto de Síntesis Química y Catálisis Homogénea, CSIC - Universidad de Zaragoza, Spain.
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38
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Durini M, Russotto E, Pignataro L, Reiser O, Piarulli U. SupraBox: Chiral Supramolecular Oxazoline Ligands. European J Org Chem 2012. [DOI: 10.1002/ejoc.201200516] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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39
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Chen DYK, Youn SW. C-H activation: a complementary tool in the total synthesis of complex natural products. Chemistry 2012; 18:9452-74. [PMID: 22736530 DOI: 10.1002/chem.201201329] [Citation(s) in RCA: 451] [Impact Index Per Article: 37.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2012] [Indexed: 02/05/2023]
Abstract
The recent advent of transition-metal mediated C-H activation is revolutionizing the synthetic field and gradually infusing a "C-H activation mind-set" in both students and practitioners of organic synthesis. As a powerful testament of this emerging synthetic tool, applications of C-H activation in the context of total synthesis of complex natural products are beginning to blossom. Herein, recently completed total syntheses showcasing creative and ingenious incorporation of C-H activation as a strategic manoeuver are compared with their "non-C-H activation" counterparts, illuminating a new paradigm in strategic synthetic design.
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Affiliation(s)
- David Y-K Chen
- Department of Chemistry, Seoul National University, Gwanak-ro, Gwanak-gu, Seoul 151-742, South Korea.
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40
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Borthwick AD. 2,5-Diketopiperazines: synthesis, reactions, medicinal chemistry, and bioactive natural products. Chem Rev 2012; 112:3641-716. [PMID: 22575049 DOI: 10.1021/cr200398y] [Citation(s) in RCA: 606] [Impact Index Per Article: 50.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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41
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Aida H, Mori K, Yamaguchi Y, Mizuta S, Moriyama T, Yamamoto I, Fujimoto T. Enantioselective Acylation of 1,2- and 1,3-Diols Catalyzed by Aminophosphinite Derivatives of (1S,2R)-1-Amino-2-indanol. Org Lett 2012; 14:812-5. [DOI: 10.1021/ol2033459] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Hiroyuki Aida
- Department of Functional Polymer Science and Interdisciplinary Graduate School of Science and Technology, Shinshu University, Ueda, Nagano 386-8567, Japan
| | - Kouhei Mori
- Department of Functional Polymer Science and Interdisciplinary Graduate School of Science and Technology, Shinshu University, Ueda, Nagano 386-8567, Japan
| | - Yasuyuki Yamaguchi
- Department of Functional Polymer Science and Interdisciplinary Graduate School of Science and Technology, Shinshu University, Ueda, Nagano 386-8567, Japan
| | - Shinya Mizuta
- Department of Functional Polymer Science and Interdisciplinary Graduate School of Science and Technology, Shinshu University, Ueda, Nagano 386-8567, Japan
| | - Tomomi Moriyama
- Department of Functional Polymer Science and Interdisciplinary Graduate School of Science and Technology, Shinshu University, Ueda, Nagano 386-8567, Japan
| | - Iwao Yamamoto
- Department of Functional Polymer Science and Interdisciplinary Graduate School of Science and Technology, Shinshu University, Ueda, Nagano 386-8567, Japan
| | - Tetsuya Fujimoto
- Department of Functional Polymer Science and Interdisciplinary Graduate School of Science and Technology, Shinshu University, Ueda, Nagano 386-8567, Japan
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42
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Arai T, Sakagami K. Asymmetric Benzoylation of meso-Hydrobenzoin Using a Reusable Tripodal Imidazoline-Pyridine-Cu Catalyst. European J Org Chem 2012. [DOI: 10.1002/ejoc.201101722] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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43
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Muramatsu W, William JM, Onomura O. Selective Monobenzoylation of 1,2- and 1,3-Diols Catalyzed by Me2SnCl2 in Water (Organic Solvent Free) under Mild Conditions. J Org Chem 2011; 77:754-9. [DOI: 10.1021/jo202136a] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Wataru Muramatsu
- Graduate School of Biomedical Sciences, Nagasaki University, 1-14 Bunkyo-machi, Nagasaki, Nagasaki
852-8521, Japan
| | - Julius M. William
- Graduate School of Biomedical Sciences, Nagasaki University, 1-14 Bunkyo-machi, Nagasaki, Nagasaki
852-8521, Japan
| | - Osamu Onomura
- Graduate School of Biomedical Sciences, Nagasaki University, 1-14 Bunkyo-machi, Nagasaki, Nagasaki
852-8521, Japan
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44
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45
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Phase-Transfer Catalyzed Michael Addition Reaction Using a New C2-Symmetric Quaternary Ammonium Salt Derived From l-Proline. Catal Letters 2011. [DOI: 10.1007/s10562-011-0595-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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46
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Müller CE, Schreiner PR. Organokatalytischer, enantioselektiver Acyltransfer auf racemische sowie meso-Alkohole, -Amine und -Thiole. Angew Chem Int Ed Engl 2011. [DOI: 10.1002/ange.201006128] [Citation(s) in RCA: 106] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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47
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Müller CE, Schreiner PR. Organocatalytic Enantioselective Acyl Transfer onto Racemic as well as meso Alcohols, Amines, and Thiols. Angew Chem Int Ed Engl 2011; 50:6012-42. [DOI: 10.1002/anie.201006128] [Citation(s) in RCA: 315] [Impact Index Per Article: 24.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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48
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Tian H, Ermolenko L, Gabant M, Vergne C, Moriou C, Retailleau P, Al-Mourabit A. Pyrrole-Assisted and Easy Oxidation of Cyclic α-Amino Acid- Derived Diketopiperazines under Mild Conditions. Adv Synth Catal 2011. [DOI: 10.1002/adsc.201100112] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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49
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Spivey AC, Arseniyadis S. Amine, alcohol and phosphine catalysts for acyl transfer reactions. Top Curr Chem (Cham) 2011; 291:233-80. [PMID: 21494952 DOI: 10.1007/978-3-642-02815-1_25] [Citation(s) in RCA: 61] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/04/2023]
Abstract
An overview of the area of organocatalytic asymmetric acyl transfer processes is presented including O- and N-acylation. The material has been ordered according to the structural class of catalyst employed rather than reaction type with the intention to draw mechanistic parallels between the manner in which the various reactions are accelerated by the catalysts and the concepts employed to control transfer of chiral information from the catalyst to the substrates.
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Affiliation(s)
- Alan C Spivey
- Department of Chemistry, South Kensington Campus, Imperial College, London, SW7 2AZ, UK.
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Davari MD, Bahrami H, Zahedi M, Jadidi K. Kinetics and Mechanism of the Kmn04-Oxidative Catalysed Condensation Reaction of L-Proline to a Diketopiperazine: Evidence for Delayed Autocatalytic Behaviour. PROGRESS IN REACTION KINETICS AND MECHANISM 2011. [DOI: 10.3184/146867810x12894108189486] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The kinetics and mechanism of the KMn04-oxidative catalysed condensation reaction of L-proline, as a cyclic secondary amino acid, has been investigated spectrophotometrically. Product analysis has revealed, that in contrast to the usual reaction of α-amino acids, which results in an aldehyde species, a valuable diketopiperazine, namely cyclo(L-pro-L-pro), is obtained as the main product, providing a cheap, simple, efficient, and novel method. Conclusive evidence has demonstrated delayed autocatalytic activity involving Mn2+in this reaction, analogous to that shown by chain primary a-amino acids. It has been revealed that such activity can emerge when a certain concentration of Mn2 +is built up in the medium, to which we refer as the “critical concentration”. Moreover, the “critical concentration” for the appearance of “autocatalytic behaviour” in this oxidative process is affected by the nature of the amino acid used, as reported in previous studies, while the magnitude of the critical concentration depends on the sulfuric acid concentration. In considering “delayed autocatalytic behaviour” of Mn2+ions, rate equations satisfying experimental data for both catalytic and non- catalytic routes have been presented. The reaction shows a first-order dependence on permanganate ion concentration, both in the catalytic and non-catalytic pathways, and an apparent first-order dependence on Mn2 +ions in the catalytic pathway. The correspondence of the pseudo-order rate constants of the catalytic and non-catalytic pathways to the Arrhenius and Eyring laws verified both the “critical concentration” and “delayed autocatalytic behaviour” concepts. The activation parameters associated with the reaction pseudo-rate constants k, and k2are computed and discussed. Proposed mechanisms for both catalytic and non- catalytic routes include a diacyclperoxide intermediate, which leads to a C-2-symmetric chiral product having a diketopiperazine skeleton.
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Affiliation(s)
- Mehdi D. Davari
- Department of Chemistry, Faculty of Sciences, Shahid Beheshti University, Evin, 19839-6313, Tehran, Iran
| | - Homayoon Bahrami
- Department of Chemistry, Faculty of Sciences, Shahid Beheshti University, Evin, 19839-6313, Tehran, Iran
| | - Mansour Zahedi
- Department of Chemistry, Faculty of Sciences, Shahid Beheshti University, Evin, 19839-6313, Tehran, Iran
| | - Khosrow Jadidi
- Department of Chemistry, Faculty of Sciences, Shahid Beheshti University, Evin, 19839-6313, Tehran, Iran
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