1
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Li Z, Wen Y, Wang N, Han F, Li Y, Zhuang H, Miao C. Ionic Liquids with Multi‐Active Sites Synergistically Catalyzed Metal‐Free Transformation of Alcohols Using Dimethyl Carbonate as an Environmental Solvent. European J Org Chem 2021. [DOI: 10.1002/ejoc.202100564] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Zengmin Li
- College of Chemistry and Material Science Shandong Agricultural University Daizong Road No. 61 Tai'an 271018 China
| | - Yating Wen
- College of Chemistry and Material Science Shandong Agricultural University Daizong Road No. 61 Tai'an 271018 China
| | - Ning Wang
- College of Chemistry and Material Science Shandong Agricultural University Daizong Road No. 61 Tai'an 271018 China
| | - Feng Han
- College of Chemistry and Material Science Shandong Agricultural University Daizong Road No. 61 Tai'an 271018 China
| | - Ying Li
- College of Chemistry and Material Science Shandong Agricultural University Daizong Road No. 61 Tai'an 271018 China
| | - Hongfeng Zhuang
- College of Chemistry and Material Science Shandong Agricultural University Daizong Road No. 61 Tai'an 271018 China
| | - Chengxia Miao
- College of Chemistry and Material Science Shandong Agricultural University Daizong Road No. 61 Tai'an 271018 China
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2
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Chinnaraja E, Arunachalam R, Samanta K, Natarajan R, Subramanian PS. Enantioselective Michael Addition Reaction Catalysed by Enantiopure Binuclear Nickel(II) Close‐Ended Helicates. Adv Synth Catal 2020. [DOI: 10.1002/adsc.201901350] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Eswaran Chinnaraja
- Inorganic Materials and Catalysis DivisionCSIR-Central Salt and Marine Chemicals Research Institute (CSIR-CSMCRI) Bhavnagar 364 002, Gujarat India
- Academy of Scientific and Innovative Research (AcSIR) Ghaziabad 201002 India
| | - Rajendran Arunachalam
- Inorganic Materials and Catalysis DivisionCSIR-Central Salt and Marine Chemicals Research Institute (CSIR-CSMCRI) Bhavnagar 364 002, Gujarat India
- Academy of Scientific and Innovative Research (AcSIR) Ghaziabad 201002 India
| | - Krishanu Samanta
- Academy of Scientific and Innovative Research (AcSIR) Ghaziabad 201002 India
- Organic & Medicinal Chemistry DivisionCSIR-Indian Institute of Chemical Biology Kolkata India
| | - Ramalingam Natarajan
- Academy of Scientific and Innovative Research (AcSIR) Ghaziabad 201002 India
- Organic & Medicinal Chemistry DivisionCSIR-Indian Institute of Chemical Biology Kolkata India
| | - Palani S. Subramanian
- Inorganic Materials and Catalysis DivisionCSIR-Central Salt and Marine Chemicals Research Institute (CSIR-CSMCRI) Bhavnagar 364 002, Gujarat India
- Academy of Scientific and Innovative Research (AcSIR) Ghaziabad 201002 India
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3
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Fu Q, Lu HD, Xie YF, Liu JY, Han Y, Gong NB, Guo F. Salt formation of two BCS II drugs (indomethacin and naproxen) with (1R, 2R)-1,2-diphenylethylenediamine: Crystal structures, solubility and thermodynamics analysis. J Mol Struct 2019. [DOI: 10.1016/j.molstruc.2019.02.104] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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4
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Han Y, Fu Q, Zhang P, Guan H, Guo F. Acid-ammonium heterodimer and N (ammonium)-H...N (pyridine) synthon preference in three salts of nicotinic acid with (1R,2R)-1,2-diphenylethylenediamine. ACTA CRYSTALLOGRAPHICA SECTION B, STRUCTURAL SCIENCE, CRYSTAL ENGINEERING AND MATERIALS 2019; 75:219-226. [PMID: 32830747 DOI: 10.1107/s2052520619000477] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/16/2018] [Accepted: 01/09/2019] [Indexed: 06/11/2023]
Abstract
Nicotinic acid (NA), known as vitamin B3, has been widely studied in pharmaceutical science. Herein, three salts derived from NA and (1R,2R)-1,2-diphenylethylenediamine (DPEN), including one solvent-free salt (DPEN)(NA)2 and two solvated salts, (DPEN)(NA)2(EA) and (DPEN)(NA)2(ACN) (EA: ethyl acetate, ACN: acetonitrile), have been obtained and characterized by solid-state techniques. By the investigation of single-crystal structures, the synthons, acid-ammonium heterodimer and Nammonium-H...Npyridine between functional groups of 1,2-diphenylethylenediammonium and NA are revealed and further identified using Hirshfeld surface analysis. The utility of the synthons is further demonstrated by making salts with the NA isomer, isonicotinic acid. Here the synthon occurrences in cocrystals/salts of NA (including NA derivatives) and diamine coformers reported in the Cambridge Structure Database (CSD) are compared. The robustness of acid-ammonium heterodimer and Nammonium-H...Npyridine is investigated by a search of the CSD. The NA salts also show their improved solubility in pH 1.2, 4.5 and 6.8 buffer mediums compared with pure NA material.
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Affiliation(s)
- Yang Han
- College of Chemistry, Liaoning University, Chongshan Middle Road No. 66, Shenyang, Liaoning 110036, People's Republic of China
| | - Qiang Fu
- College of Chemistry, Liaoning University, Chongshan Middle Road No. 66, Shenyang, Liaoning 110036, People's Republic of China
| | - Peng Zhang
- College of Chemistry, Liaoning University, Chongshan Middle Road No. 66, Shenyang, Liaoning 110036, People's Republic of China
| | - Hongyu Guan
- College of Chemistry, Liaoning University, Chongshan Middle Road No. 66, Shenyang, Liaoning 110036, People's Republic of China
| | - Fang Guo
- College of Chemistry, Liaoning University, Chongshan Middle Road No. 66, Shenyang, Liaoning 110036, People's Republic of China
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5
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Sonsona IG, Marqués-López E, Gimeno MC, Herrera RP. First aromatic amine organocatalysed activation of α,β-unsaturated ketones. NEW J CHEM 2019. [DOI: 10.1039/c9nj02392e] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The first example of a chiral aromatic amine used to activate α,β-unsaturated ketones in aminocatalysis.
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Affiliation(s)
- Isaac G. Sonsona
- Departamento de Química Orgánica
- Laboratorio de Organocatálisis Asimétrica
- Instituto de Síntesis Química y Catálisis Homogénea (ISQCH)
- (CSIC-Universidad de Zaragoza)
- E-50009 Zaragoza
| | - Eugenia Marqués-López
- Departamento de Química Orgánica
- Laboratorio de Organocatálisis Asimétrica
- Instituto de Síntesis Química y Catálisis Homogénea (ISQCH)
- (CSIC-Universidad de Zaragoza)
- E-50009 Zaragoza
| | - M. Concepción Gimeno
- Departamento de Química Inorgánica Instituto de Síntesis Química y Catálisis Homogénea (ISQCH) (CSIC-Universidad de Zaragoza)
- E-50009 Zaragoza
- Spain
| | - Raquel P. Herrera
- Departamento de Química Orgánica
- Laboratorio de Organocatálisis Asimétrica
- Instituto de Síntesis Química y Catálisis Homogénea (ISQCH)
- (CSIC-Universidad de Zaragoza)
- E-50009 Zaragoza
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6
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Wang W, Ye L, Shi Z, Zhao Z, Li X. Enantioselective Michael addition of malonates to α,β-unsaturated ketones catalyzed by 1,2-diphenylethanediamine. RSC Adv 2018; 8:41699-41704. [PMID: 35558786 PMCID: PMC9091971 DOI: 10.1039/c8ra07809b] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2018] [Accepted: 12/03/2018] [Indexed: 11/21/2022] Open
Abstract
A general and highly enantioselective Michael addition of malonates to cinnamones and chalcones has been developed. The commercially available 1,2-diphenylethanediamine could be directly utilized as the organocatalyst to furnish the desired adducts in satisfactory yield (61–99%) and moderate to excellent enantiopurity (65 to >99% ee). β-Ketoester was also a competent donor and was employed to construct densely functionalized cyclohexenones via a tandem Michael-aldol condensation process. 1,2-Diphenylethanediamine could be directly utilized to promote the Michael addition of malonates and β-ketoesters to various α,β-unsaturated ketones.![]()
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Affiliation(s)
- Wei Wang
- College of Chemistry and Environment Protection Engineering, Southwest Minzu University Chengdu 610041 China
| | - Ling Ye
- Faculty of Geosciences and Environmental Engineering, Southwest Jiaotong University Chengdu 610031 China
| | - Zhichuan Shi
- College of Chemistry and Environment Protection Engineering, Southwest Minzu University Chengdu 610041 China
| | - Zhigang Zhao
- College of Chemistry and Environment Protection Engineering, Southwest Minzu University Chengdu 610041 China
| | - Xuefeng Li
- College of Chemistry and Environment Protection Engineering, Southwest Minzu University Chengdu 610041 China
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7
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Modrocká V, Veverková E, Mečiarová M, Šebesta R. Bifunctional Amine-Squaramides as Organocatalysts in Michael/Hemiketalization Reactions of β,γ-Unsaturated α-Ketoesters and α,β-Unsaturated Ketones with 4-Hydroxycoumarins. J Org Chem 2018; 83:13111-13120. [PMID: 30277392 DOI: 10.1021/acs.joc.8b01847] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
The catalytic efficiency of various amine-squaramides was tested in Michael/hemiketalization reactions of 4-hydroxycoumarines with two types of enones. Tertiary amine-squaramide organocatalysts afforded the best results regarding both activity and enantioselectivity when β,γ-unsaturated α-ketoesters were used as the Michael acceptors (yields up to 98%, enantioselectivities up to 90% ee). On the other hand, the primary amine-squaramides are the best choice for related reactions of 4-hydroxycoumarins with enones. The corresponding pyrano[3,2- c]chromen-5-on products were obtained in high enantiomeric purities (up to 96%). The Michael addition of 4-hydroxycoumarin to 4-phenylbut-3-en-2-on directly produced chiral anticoagulant drug ( S)-warfarin in 92% ee when green solvent 2-MeTHF and catalyst ( S, S)-C8 were used. Moreover, an enantiomeric catalyst ( R, R)-C8 gave ( R)-warfarin in >99% ee.
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Affiliation(s)
- Viktória Modrocká
- Faculty of Natural Sciences, Department of Organic Chemistry , Comenius University in Bratislava , Mlynska dolina, Ilkovičova 6 , SK-84215 Bratislava , Slovakia
| | - Eva Veverková
- Faculty of Natural Sciences, Department of Organic Chemistry , Comenius University in Bratislava , Mlynska dolina, Ilkovičova 6 , SK-84215 Bratislava , Slovakia
| | - Mária Mečiarová
- Faculty of Natural Sciences, Department of Organic Chemistry , Comenius University in Bratislava , Mlynska dolina, Ilkovičova 6 , SK-84215 Bratislava , Slovakia
| | - Radovan Šebesta
- Faculty of Natural Sciences, Department of Organic Chemistry , Comenius University in Bratislava , Mlynska dolina, Ilkovičova 6 , SK-84215 Bratislava , Slovakia
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8
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Kochetkov SV, Kucherenko AS, Zlotin SG. Asymmetric synthesis of warfarin and its analogs catalyzed by C 2-symmetric squaramide-based primary diamines. Org Biomol Chem 2018; 16:6423-6429. [PMID: 30047554 DOI: 10.1039/c8ob01576g] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Novel C2-symmetric N,N'-bis(2-amino-1,2-diphenylethyl)squaramides with 1,2-di(pyridin-2-yl)ethane and 1,2-diphenylethane spacer groups were designed and applied as organocatalysts in asymmetric additions of 4-hydroxycoumarin and 4-hydroxy-6-methyl-2H-pyran-2-one to α,β-unsaturated ketones. Both enantiomers of the anticoagulant warfarin and its analogs were prepared in up to 96% yield and with 96% ee. Recyclability of the developed catalysts and synthetic utility of the prepared Michael adducts for asymmetric synthesis of potential chiral medications via acylation reactions were demonstrated.
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Affiliation(s)
- Sergei V Kochetkov
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 119991 Moscow, Russia.
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9
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Sano K, Kohari Y, Nakano H, Seki C, Takeshita M, Tokiwa M, Hirose Y, Uwai K. Lipase-catalyzed domino Michael–aldol reaction of 2-methyl-1,3-cycloalkanedione and methyl vinyl ketone for the synthesis of bicyclic compounds. SYNTHETIC COMMUN 2015. [DOI: 10.1080/00397911.2015.1116584] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- Kaoru Sano
- Division of Applied Sciences, Muroran Institute of Technology, Muroran, Japan
| | - Yoshihito Kohari
- Division of Applied Sciences, Muroran Institute of Technology, Muroran, Japan
| | - Hiroto Nakano
- Division of Applied Sciences, Muroran Institute of Technology, Muroran, Japan
| | - Chigusa Seki
- Division of Applied Sciences, Muroran Institute of Technology, Muroran, Japan
| | | | | | - Yoshihiko Hirose
- Amano Enzyme Inc., Gifu Research and Development Center, Gifu, Japan
| | - Koji Uwai
- Division of Applied Sciences, Muroran Institute of Technology, Muroran, Japan
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10
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Zlotin SG, Kochetkov SV. C2-Symmetric diamines and their derivatives as promising organocatalysts for asymmetric synthesis. RUSSIAN CHEMICAL REVIEWS 2015. [DOI: 10.1070/rcr4562] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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11
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Nakano H, Kumagai J, Kohari Y, Seki C, Uwai K, Okuyama Y, Kwon E. Chiral Primary Amino Amide Alcohol Organocatalyst for the Asymmetric Michael Addition of 4-Hydroxycoumarin with α,β-Unsaturated Ketones. HETEROCYCLES 2015. [DOI: 10.3987/com-14-s(k)83] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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12
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Kucherenko AS, Lisnyak VG, Chizhov AO, Zlotin SG. Primary Amine Attached to anN-(Carboxyalkyl)imidazolium Cation: A Recyclable Organocatalyst for the Asymmetric Michael Reaction. European J Org Chem 2014. [DOI: 10.1002/ejoc.201400045] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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13
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Rogozińska-Szymczak M, Mlynarski J. Asymmetric synthesis of warfarin and its analogues on water. ACTA ACUST UNITED AC 2014. [DOI: 10.1016/j.tetasy.2014.04.008] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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14
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Ricci A. Asymmetric organocatalysis at the service of medicinal chemistry. ISRN ORGANIC CHEMISTRY 2014; 2014:531695. [PMID: 24971178 PMCID: PMC4041019 DOI: 10.1155/2014/531695] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/04/2013] [Accepted: 12/30/2013] [Indexed: 11/17/2022]
Abstract
The application of the most representative and up-to-date examples of homogeneous asymmetric organocatalysis to the synthesis of molecules of interest in medicinal chemistry is reported. The use of different types of organocatalysts operative via noncovalent and covalent interactions is critically reviewed and the possibility of running some of these reactions on large or industrial scale is described. A comparison between the organo- and metal-catalysed methodologies is offered in several cases, thus highlighting the merits and drawbacks of these two complementary approaches to the obtainment of very popular on market drugs or of related key scaffolds.
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Affiliation(s)
- Alfredo Ricci
- Department of Industrial Chemistry “Toso Montanari”, School of Science, University of Bologna, V. Risorgimento 4, 40136 Bologna, Italy
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15
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Shang JY, Li L, Lu Y, Yang KF, Xu LW. Enantioselective Fluorination Reaction of β-Ketoester–Catalyzed Chiral Primary Amine–Based Multifunctional Catalyst Systems. SYNTHETIC COMMUN 2013. [DOI: 10.1080/00397911.2013.791697] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- Jun-Yan Shang
- a Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education , Hangzhou Normal University , Hangzhou , China
| | - Li Li
- a Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education , Hangzhou Normal University , Hangzhou , China
| | - Yixin Lu
- b Department of Chemistry and Medicinal Chemistry Program, Life Sciences Institute, National University of Singapore , Singapore
| | - Ke-Fang Yang
- a Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education , Hangzhou Normal University , Hangzhou , China
| | - Li-Wen Xu
- a Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education , Hangzhou Normal University , Hangzhou , China
- c State Key Laboratory for Oxo Synthesis and Selective Oxidation , Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences , Lanzhou , China
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16
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Yang W, Jiang KZ, Lu X, Yang HM, Li L, Lu Y, Xu LW. Molecular assembly of an achiral phosphine and a chiral primary amine: a highly efficient supramolecular catalyst for the enantioselective Michael reaction of aldehydes with maleimides. Chem Asian J 2013; 8:1182-90. [PMID: 23554319 DOI: 10.1002/asia.201300141] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2013] [Revised: 02/20/2013] [Indexed: 12/27/2022]
Abstract
A combined catalyst system of a cinchonidine-derived primary amine and triphenylphosphine (CD-NH2 /PPh3 ) exhibited high catalytic performance in the Michael reaction of aldehydes with maleimides, thereby affording the corresponding functionalized aldehydes in excellent yields (up to 99 %) and enantioselectivities (>99 % ee). More interestingly, the significance of the phosphine in enhancing the enantioselectivities in the chiral-primary-amine-catalyzed Michael reaction was revealed. Furthermore, we explored the origin of the reaction mechanism in the Michael addition promoted by the dual organocatalytic system. On the basis of experimental results and spectroscopic analysis, such as UV/Vis, fluorescence emission (FL), NMR, and circular dichroism (CD) spectroscopy, as well as ESI-MS, we found that the molecular assembly of phosphine and primary amine played a crucial role in this enantioselective reaction, in which a possible supramolecular complex was formed as an effective chiral catalyst through noncovalent molecular interactions of a cinchona alkaloid-derived primary amine with triphenylphosphine.
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Affiliation(s)
- Wei Yang
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education, Hangzhou Normal University, Hangzhou 310012, PR China
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17
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Yin G, Ren T, Rao Y, Zhou Y, Li Z, Shu W, Wu A. Stereoselective Synthesis of 2,8-Dioxabicyclo[3.3.1]nonane Derivatives via a Sequential Michael Addition/Bicyclization Reaction. J Org Chem 2013; 78:3132-41. [DOI: 10.1021/jo400081q] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- Guodong Yin
- Hubei Key Laboratory of Pollutant Analysis & Reuse Technology, College of Chemistry and Environmental Engineering, Hubei Normal University, Huangshi 435002, PR China
| | - Tianbing Ren
- Hubei Key Laboratory of Pollutant Analysis & Reuse Technology, College of Chemistry and Environmental Engineering, Hubei Normal University, Huangshi 435002, PR China
| | - Yin Rao
- Hubei Key Laboratory of Pollutant Analysis & Reuse Technology, College of Chemistry and Environmental Engineering, Hubei Normal University, Huangshi 435002, PR China
| | - Yifan Zhou
- Hubei Key Laboratory of Pollutant Analysis & Reuse Technology, College of Chemistry and Environmental Engineering, Hubei Normal University, Huangshi 435002, PR China
| | - Zhexian Li
- Hubei Key Laboratory of Pollutant Analysis & Reuse Technology, College of Chemistry and Environmental Engineering, Hubei Normal University, Huangshi 435002, PR China
| | - Wenming Shu
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, Central China Normal University, Wuhan 430079, PR China
| | - Anxin Wu
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, Central China Normal University, Wuhan 430079, PR China
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18
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Bai JF, Guo YL, Peng L, Jia LN, Xu XY, Wang LX. Enantioselective Diels–Alder reaction of anthrone and maleimide catalyzed by a simple chiral tertiary amine. Tetrahedron 2013. [DOI: 10.1016/j.tet.2012.11.011] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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19
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Kucherenko AS, Siyutkin DE, Nigmatov AG, Chizhov AO, Zlotin SG. Chiral Primary Amine Tagged to Ionic Group as Reusable Organocatalyst for Asymmetric Michael Reactions of C-Nucleophiles with α,β-Unsaturated Ketones. Adv Synth Catal 2012. [DOI: 10.1002/adsc.201200338] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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20
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Zhang J, Chai Y, Jiang K, Yang H, Pan Y, Sun C. Gas phase retro-Michael reaction resulting from dissociative protonation: fragmentation of protonated warfarin in mass spectrometry. JOURNAL OF MASS SPECTROMETRY : JMS 2012; 47:1059-1064. [PMID: 22899515 DOI: 10.1002/jms.3055] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
A mass spectrometric study of protonated warfarin and its derivatives (compounds 1 to 5) has been performed. Losses of a substituted benzylideneacetone and a 4-hydroxycoumarin have been observed as a result of retro-Michael reaction. The added proton is initially localized between the two carbonyl oxygens through hydrogen bonding in the most thermodynamically favorable tautomer. Upon collisional activation, the added proton migrates to the C-3 of 4-hydroxycoumarin, which is called the dissociative protonation site, leading to the formation of the intermediate ion-neutral complex (INC). Within the INC, further proton transfer gives rise to a proton-bound complex. The cleavage of one hydrogen bond of the proton-bound complex produces the protonated 4-hydroxycoumarin, while the separation of the other hydrogen bond gives rise to the protonated benzylideneacetone. Theoretical calculations indicate that the 1, 5-proton transfer pathway is most thermodynamically favorable and support the existence of the INC. Both substituent effect and the kinetic method were utilized for explaining the relative abundances of protonated 4-hydroxycoumarin and protonated benzylideneacetone derivative. For monosubstituted warfarins, the electron-donating substituents favor the generation of protonated substituted benzylideneacetone, whereas the electron-withdrawing groups favor the formation of protonated 4-hydroxycoumarin.
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Affiliation(s)
- Jia Zhang
- Department of Chemistry, Zhejiang University, Hangzhou, 310027, China
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21
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Fedorov AY, Nyuchev AV, Beletskaya IP. Catalytic methods of creation and functionalization of the coumarin skeleton. Chem Heterocycl Compd (N Y) 2012. [DOI: 10.1007/s10593-012-0980-8] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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22
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Shang JY, Li F, Bai XF, Jiang JX, Yang KF, Lai GQ, Xu LW. Malononitrile-Assisted Highly Chemoselective Bismuth Triflate Catalyzed Conjugate Reduction of α,β-Unsaturated Ketones. European J Org Chem 2012. [DOI: 10.1002/ejoc.201200020] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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23
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Zheng ZJ, Liu LX, Gao G, Dong H, Jiang JX, Lai GQ, Xu LW. Amine-functional polysiloxanes (AFPs) as efficient polymeric organocatalyst for amino catalysis: efficient multicomponent Gewald reaction, α-allylic alkylation of aldehydes, and Knoevenagel condensation. RSC Adv 2012. [DOI: 10.1039/c2ra00029f] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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24
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Dong J, Du DM. Highly enantioselective synthesis of Warfarin and its analogs catalysed by primary amine–phosphinamide bifunctional catalysts. Org Biomol Chem 2012; 10:8125-31. [DOI: 10.1039/c2ob26334c] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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25
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Yang HM, Li L, Li F, Jiang KZ, Shang JY, Lai GQ, Xu LW. Silicon-Based Lewis Acid Assisted Cinchona Alkaloid Catalysis: Highly Enantioselective Aza-Michael Reaction under Solvent-Free Conditions. Org Lett 2011; 13:6508-11. [DOI: 10.1021/ol202803b] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Hua-Meng Yang
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education, Hangzhou Normal University, Hangzhou 310012, P. R. China
| | - Li Li
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education, Hangzhou Normal University, Hangzhou 310012, P. R. China
| | - Fei Li
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education, Hangzhou Normal University, Hangzhou 310012, P. R. China
| | - Ke-Zhi Jiang
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education, Hangzhou Normal University, Hangzhou 310012, P. R. China
| | - Jun-Yan Shang
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education, Hangzhou Normal University, Hangzhou 310012, P. R. China
| | - Guo-Qiao Lai
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education, Hangzhou Normal University, Hangzhou 310012, P. R. China
| | - Li-Wen Xu
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education, Hangzhou Normal University, Hangzhou 310012, P. R. China
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Byeon SR, Park H, Kim H, Hong J. Stereoselective Synthesis of 2,6-trans-Tetrahydropyran via Primary Diamine-Catalyzed Oxa-Conjugate Addition Reaction of α,β-Unsaturated Ketone: Total Synthesis of Psymberin. Org Lett 2011; 13:5816-9. [DOI: 10.1021/ol2024289] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Seong Rim Byeon
- Department of Chemistry, Duke University, Durham, North Carolina 27708, United States, and College of Pharmacy, Ajou University, Suwon 443-749, Korea
| | - Heekwang Park
- Department of Chemistry, Duke University, Durham, North Carolina 27708, United States, and College of Pharmacy, Ajou University, Suwon 443-749, Korea
| | - Hyoungsu Kim
- Department of Chemistry, Duke University, Durham, North Carolina 27708, United States, and College of Pharmacy, Ajou University, Suwon 443-749, Korea
| | - Jiyong Hong
- Department of Chemistry, Duke University, Durham, North Carolina 27708, United States, and College of Pharmacy, Ajou University, Suwon 443-749, Korea
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27
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Zhou J, Wang L, Chen Q, Wang Y, Fu Y. Selective response of antigen-antibody reactions on chiral surfaces modified with 1,2-diphenylethylenediamine enantiomers. SURF INTERFACE ANAL 2011. [DOI: 10.1002/sia.3789] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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28
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Barange DK, Kavala V, Kuo CW, Lei PM, Yao CF. Synthesis of C3-nitroalkylated-4-hydroxycoumarin and hydroxyiminodihydrofuroquinolinone derivatives via the Michael addition of cyclic 1,3-dicarbonyl compounds to β-nitrostyrenes. Tetrahedron 2011. [DOI: 10.1016/j.tet.2011.02.062] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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