1
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Cherkasov SA, Semikina AD, Kaletina PM, Polienko YF, Morozov DA, Maksimov AM, Kirilyuk IA, Bagryanskaya EG, Parkhomenko DA. The Kinetics of 1,3-Dipolar Cycloaddition of Vinyl Monomers to 2,2,5,5-Tetramethyl-3-imidazoline-3-oxides. Chempluschem 2021; 86:1080-1086. [PMID: 34402220 DOI: 10.1002/cplu.202100266] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2021] [Revised: 07/22/2021] [Indexed: 11/08/2022]
Abstract
In our previous work [Edeleva et al. Chem. Commun. 2019, 55, 190-193], we proposed a versatile approach to the activation of the homolysis of an aldonitrone group-containing alkoxyamine by 1,3-dipolar cycloaddition to a vinyl monomer. Both nitroxide- and alkoxyamine-containing aldonitrones were found to be capable of reacting with the activated alkenes. In the present study, the kinetics of these reactions with 11 different vinyl monomers were investigated using EPR and NMR spectroscopy, and apparent activation energies as well as pre-exponential factors were determined. The influence of monomer structure on the rate of the 1,3-dipolar cycloaddition is discussed. For the vinyl monomers typically used in nitroxide mediated polymerization (styrene, methyl methacrylate) the rate coefficient of cycloaddition to the nitroxide is around k(353 K) ∼4 ⋅ 10-4 L mol-1 s-1 , whereas for n-butyl acrylate and methyl vinyl ketone we observed the fastest cycloaddition reaction with k(353 K)=8 ⋅ 10-3 and 4 ⋅ 10-2 L mol-1 s-1 respectively.
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Affiliation(s)
- Sergey A Cherkasov
- N.N. Vorozhtsov Novosibirsk Institute of Organic Chemistry SB RAS, 9 Lavrentiev Ave., Novosibirsk, 630090, Russia
- Novosibirsk State University, 1 Pirogova str., Novosibirsk, 630090, Russia
| | - Anastasiya D Semikina
- N.N. Vorozhtsov Novosibirsk Institute of Organic Chemistry SB RAS, 9 Lavrentiev Ave., Novosibirsk, 630090, Russia
- Novosibirsk State University, 1 Pirogova str., Novosibirsk, 630090, Russia
| | - Polina M Kaletina
- N.N. Vorozhtsov Novosibirsk Institute of Organic Chemistry SB RAS, 9 Lavrentiev Ave., Novosibirsk, 630090, Russia
- Novosibirsk State University, 1 Pirogova str., Novosibirsk, 630090, Russia
| | - Yulia F Polienko
- N.N. Vorozhtsov Novosibirsk Institute of Organic Chemistry SB RAS, 9 Lavrentiev Ave., Novosibirsk, 630090, Russia
| | - Denis A Morozov
- N.N. Vorozhtsov Novosibirsk Institute of Organic Chemistry SB RAS, 9 Lavrentiev Ave., Novosibirsk, 630090, Russia
| | - Alexander M Maksimov
- N.N. Vorozhtsov Novosibirsk Institute of Organic Chemistry SB RAS, 9 Lavrentiev Ave., Novosibirsk, 630090, Russia
| | - Igor A Kirilyuk
- N.N. Vorozhtsov Novosibirsk Institute of Organic Chemistry SB RAS, 9 Lavrentiev Ave., Novosibirsk, 630090, Russia
| | - Elena G Bagryanskaya
- N.N. Vorozhtsov Novosibirsk Institute of Organic Chemistry SB RAS, 9 Lavrentiev Ave., Novosibirsk, 630090, Russia
| | - Dmitriy A Parkhomenko
- N.N. Vorozhtsov Novosibirsk Institute of Organic Chemistry SB RAS, 9 Lavrentiev Ave., Novosibirsk, 630090, Russia
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2
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He CT, Han XL, Zhang YX, Du ZT, Si CM, Wei BG. Sc(OTf) 3-catalyzed [3 + 2]-cycloaddition of nitrones with ynones. Org Biomol Chem 2021; 19:457-466. [PMID: 33336677 DOI: 10.1039/d0ob02158j] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An efficient approach to access functionalized (2,3-dihydroisoxazol-4-yl) ketones has been developed by reacting nitrones 4 with ynones 7 or terminal ynones 10 in a one-pot fashion. The reaction went through a formal Sc(OTf)3-catalyzed [3 + 2]-cycloaddition process to generate a number of functionalized (2,3-dihydroisoxazol-4-yl) ketones 11aa-11aw, 11ba-11la and 12aa-12ae in moderate to good yields.
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Affiliation(s)
- Chun-Ting He
- Department of Natural Medicine, School of Pharmacy, Fudan University, 826 Zhangheng Road, Shanghai 201203, China. and College of Science, Northwest A&F University, 22 Xinong Road, Shaanxi, Yangling 712100, China
| | - Xiao-Li Han
- Department of Natural Medicine, School of Pharmacy, Fudan University, 826 Zhangheng Road, Shanghai 201203, China.
| | - Yan-Xue Zhang
- Department of Natural Medicine, School of Pharmacy, Fudan University, 826 Zhangheng Road, Shanghai 201203, China.
| | - Zhen-Ting Du
- College of Science, Northwest A&F University, 22 Xinong Road, Shaanxi, Yangling 712100, China
| | - Chang-Mei Si
- Department of Natural Medicine, School of Pharmacy, Fudan University, 826 Zhangheng Road, Shanghai 201203, China.
| | - Bang-Guo Wei
- Department of Natural Medicine, School of Pharmacy, Fudan University, 826 Zhangheng Road, Shanghai 201203, China.
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3
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Insights into the mechanism and regioselectivity of the [3 + 2] cycloaddition reactions of cyclic nitrone to nitrile functions with a molecular electron density theory perspective. Theor Chem Acc 2021. [DOI: 10.1007/s00214-020-02703-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
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4
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Zou N, Qin X, Wang Z, Shi W, Mo D. Advances on the Synthesis and Application of α,β-Unsaturated Nitrones. CHINESE J ORG CHEM 2021. [DOI: 10.6023/cjoc202109007] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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5
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Casella G, Carlotto S, Mozzon M, Sgarbossa P, Bertani R, Casarin M. A DFT mechanistic study of the synthesis of trans-Z,Z-[PtIICl(NH3){HN = C(NH2)Me}2]Cl from addition of NH3 to trans-[PtIICl2(N CMe)2]. Inorganica Chim Acta 2020. [DOI: 10.1016/j.ica.2020.119847] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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6
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Novel heterocyclic chitosan derivatives and their derived nanoparticles: Catalytic and antibacterial properties. Int J Biol Macromol 2020; 149:682-692. [DOI: 10.1016/j.ijbiomac.2019.12.277] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2019] [Revised: 12/09/2019] [Accepted: 12/15/2019] [Indexed: 12/26/2022]
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7
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Gonçalves ACR, Rettondin AR, Oliveira CG, Patrocinio AOT, Machado AEH, Deflon VM, Abram U, Maia PIS. Intramolecular C(sp 2)–C (sp 2) bond formation between phenanthroline and β-diketone thiosemicarbazones in Pt II complexes: crystal structures and computational studies. Dalton Trans 2020; 49:9564-9567. [DOI: 10.1039/d0dt00367k] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
[PtCl2(phen)] reacts with β-diketone derived thiosemicarbazones leading to an intramolecular C–C coupling and formation of tetracoordinated N,N,N,S-chelates [PtII(phenLR)].
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Affiliation(s)
- Ana C. R. Gonçalves
- Núcleo de Desenvolvimento de Compostos Bioativos (NDCBio)
- Universidade Federal do Triângulo Mineiro
- Uberaba
- Brazil
| | - Andressa R. Rettondin
- Núcleo de Desenvolvimento de Compostos Bioativos (NDCBio)
- Universidade Federal do Triângulo Mineiro
- Uberaba
- Brazil
| | - Carolina G. Oliveira
- Laboratório de Fotoquímica e Ciência dos Materiais (LAFOT-CM)
- Instituto de Química
- Universidade Federal de Uberlândia
- Uberlândia
- Brazil
| | - Antonio O. T. Patrocinio
- Laboratório de Fotoquímica e Ciência dos Materiais (LAFOT-CM)
- Instituto de Química
- Universidade Federal de Uberlândia
- Uberlândia
- Brazil
| | - Antonio E. H. Machado
- Laboratório de Fotoquímica e Ciência dos Materiais (LAFOT-CM)
- Instituto de Química
- Universidade Federal de Uberlândia
- Uberlândia
- Brazil
| | - Victor M. Deflon
- Instituto de Química de São Carlos
- Universidade de São Paulo
- São Carlos
- Brazil
| | - Ulrich Abram
- Freie Universität Berlin
- Institute of Chemistry and Biochemistry
- D-14195 Berlin
- Germany
| | - Pedro I. S. Maia
- Núcleo de Desenvolvimento de Compostos Bioativos (NDCBio)
- Universidade Federal do Triângulo Mineiro
- Uberaba
- Brazil
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8
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Zelenkov LE, Kuznetsov ML, Andrusenko EV, Avdontceva MS, Starova GL, Bokach NA, Kukushkin VY. Nickel( ii)-mediated cyanamide–pyrazole coupling highlights distinct reactivity of NCNR 2 and NCR nitrile ligands. NEW J CHEM 2020. [DOI: 10.1039/d0nj00704h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The nickel(ii) center efficiently promotes the cyanamide–pyrazole coupling to give bis-chelate and tris-chelate products. The formation of the tris-chelate product for dialkylcyanamides is thermodynamically favorable.
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Affiliation(s)
- Lev E. Zelenkov
- Institute of Chemistry
- Saint Petersburg State University
- Saint Petersburg
- Russian Federation
| | - Maxim L. Kuznetsov
- Institute of Chemistry
- Saint Petersburg State University
- Saint Petersburg
- Russian Federation
- Centro de Química Estrutural
| | - Elena V. Andrusenko
- Institute of Chemistry
- Saint Petersburg State University
- Saint Petersburg
- Russian Federation
| | - Margarita S. Avdontceva
- Institute of Earth Sciences
- Saint Petersburg State University
- Saint Petersburg
- Russian Federation
| | - Galina L. Starova
- Institute of Chemistry
- Saint Petersburg State University
- Saint Petersburg
- Russian Federation
| | - Nadezhda A. Bokach
- Institute of Chemistry
- Saint Petersburg State University
- Saint Petersburg
- Russian Federation
| | - Vadim Yu. Kukushkin
- Institute of Chemistry
- Saint Petersburg State University
- Saint Petersburg
- Russian Federation
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9
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Casella G, Fonseca Guerra C, Carlotto S, Sgarbossa P, Bertani R, Casarin M. New light on an old debate: does the RCN-PtCl 2 bond include any back-donation? RCN←PtCl 2 backbonding vs. the IR ν C[triple bond, length as m-dash]N blue-shift dichotomy in organonitriles-platinum(ii) complexes. A thorough density functional theory - energy decomposition analysis study. Dalton Trans 2019; 48:12974-12985. [PMID: 31397469 DOI: 10.1039/c9dt02440a] [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
For a series of organonitrile [RCN (R = Me, CF3, Ph, CH3Ph, CF3Ph)] ligands, the nature of the N-Pt bond in the related cis-/trans-(RCN)2PtCl2 complexes has been computationally investigated by Density Functional Theory. A fragment based bond analysis has been performed in the canonical Kohn-Sham molecular orbitals framework, and it has been ultimately assessed that this bond is characterized both by N→Pt σ and by N←Pt π contributions. Voronoi Deformation Density charges further confirms the occurrence of N←Pt π interactions. Moreover, the Energy Decomposition Analysis-Natural Orbital for Chemical Valence (EDA-NOCV) method shows that the strength of the N←Pt π interaction is not negligible by contributing to about 30-40% of the total orbital interaction. Finally, the well-known νC[triple bond, length as m-dash]N blue-shift occurring upon coordination to PtII, has been thoroughly investigated by exploiting the EDA-NOCV and by evaluating νC[triple bond, length as m-dash]N and force constants. The origin of the νC[triple bond, length as m-dash]N blue-shift in these systems has been discussed on the basis of the CN bond polarization. N←Pt π backbonding causes only a systematic decrease of the observed νC[triple bond, length as m-dash]N blue-shift when compared to the one calculated for RCN-X (X = H+, alkaline, Lewis acids) herein reported (X = purely σ acceptors).
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Affiliation(s)
- Girolamo Casella
- Dipartimento di Scienze della Terra e del Mare, Università degli Studi di Palermo, Via Archirafi, 22, 90123 Palermo, Italy. and Consorzio Interuniversitario di Ricerca in Chimica dei Metalli nei Sistemi Biologici (C.I.R.C.M.S.B.) - Piazza Umberto I, 70121 Bari, Italy
| | - Célia Fonseca Guerra
- Department of Theoretical Chemistry and Amsterdam Center for Multiscale Modeling, Vrije Universiteit Amsterdam, De Boelelaan 1083, 1081 HV Amsterdam, The Netherlands and Leiden Institute of Chemistry, Gorlaeus Laboratories, Leiden University, Einsteinweg 55, 2333 CC Leiden, The Netherlands
| | - Silvia Carlotto
- Dipartimento di Scienze Chimiche, Università degli Studi di Padova, via F. Marzolo 1, 35131 Padova, Italy
| | - Paolo Sgarbossa
- Dipartimento di Ingegneria Industriale, Università degli Studi di Padova, via F. Marzolo 9, 35131 Padova, Italy
| | - Roberta Bertani
- Dipartimento di Ingegneria Industriale, Università degli Studi di Padova, via F. Marzolo 9, 35131 Padova, Italy
| | - Maurizio Casarin
- Dipartimento di Scienze Chimiche, Università degli Studi di Padova, via F. Marzolo 1, 35131 Padova, Italy
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10
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Golushko AA, Khoroshilova OV, Vasilyev AV. Synthesis of 1,2,4-Oxadiazoles by Tandem Reaction of Nitroalkenes with Arenes and Nitriles in the Superacid TfOH. J Org Chem 2019; 84:7495-7500. [PMID: 31117566 DOI: 10.1021/acs.joc.9b00812] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
The tandem reaction of nitroalkenes with arenes and nitriles in the superacid CF3SO3H (TfOH) results in the formation of 1,2,4-oxadiazole derivatives in yields up to 96%. This reaction proceeds via the consequent interaction of arenes and nitriles, as nucleophiles, with intermediate cationic species derived by the protonation of nitroalkenes in TfOH. This is novel and general synthesis of 1,2,4-oxadiazoles, which are very important compounds for medicinal chemistry.
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Affiliation(s)
- Andrei A Golushko
- Department of Organic Chemistry, Institute of Chemistry , Saint Petersburg State University , Universitetskaya nab., 7/9 , Saint Petersburg 199034 , Russia
| | - Olesya V Khoroshilova
- Center for X-ray Diffraction Studies, Research Park , Saint Petersburg State University , Universitetskiy pr., 26 , Saint Petersburg , Petrodvoretz 198504 , Russia
| | - Aleksander V Vasilyev
- Department of Organic Chemistry, Institute of Chemistry , Saint Petersburg State University , Universitetskaya nab., 7/9 , Saint Petersburg 199034 , Russia.,Department of Chemistry , Saint Petersburg State Forest Technical University , Institutsky per., 5 , Saint Petersburg 194021 , Russia
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11
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Zhong J, He H, Gao S. Exploration of 1,3-dipolar cycloaddition reactions to construct the core skeleton of Calyciphylline A-type alkaloids. Org Chem Front 2019. [DOI: 10.1039/c9qo01111k] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Nitrone induced 1,3-dipolar [3 + 2] cycloadditions were studied to construct the core structure of Calyciphylline A-type Daphniphyllum alkaloids.
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Affiliation(s)
- Jiaxin Zhong
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes
- School of Chemistry and Molecular Engineering
- East China Normal University
- Shanghai 200062
- China
| | - Haibing He
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development
- East China Normal University
- Shanghai 200062
- China
| | - Shuanhu Gao
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes
- School of Chemistry and Molecular Engineering
- East China Normal University
- Shanghai 200062
- China
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12
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PtII versus PdII-assisted [2 + 3] cycloadditions of nitriles and nitrone. Synthesis of nitrile-derived arylamido platinum(II) and Δ4-1,2,4-oxadiazoline palladium(II) complexes. Polyhedron 2019. [DOI: 10.1016/j.poly.2018.10.057] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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13
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Chen Y, Fuyue L, Wang G, Wang H, Lu C, Guo H, St. Amant C, Sun S, Xing Y. Synthesis of 1,2,4-oxadiazolidines via [3+2] cycloaddition of nitrones with carbodiimides. NEW J CHEM 2019. [DOI: 10.1039/c9nj00030e] [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
An efficient [3+2] cycloaddition of nitrones and carbodiimides has been developed.
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Affiliation(s)
- Yuan Chen
- Non-power Nuclear Technology Collaborative Innovation Center
- School of Nuclear Technology and Chemistry & Biology
- Hubei University of Science and Technology
- Xianning 437100
- China
| | - Liuting Fuyue
- Non-power Nuclear Technology Collaborative Innovation Center
- School of Nuclear Technology and Chemistry & Biology
- Hubei University of Science and Technology
- Xianning 437100
- China
| | - Gangqiang Wang
- Non-power Nuclear Technology Collaborative Innovation Center
- School of Nuclear Technology and Chemistry & Biology
- Hubei University of Science and Technology
- Xianning 437100
- China
| | - Hang Wang
- Non-power Nuclear Technology Collaborative Innovation Center
- School of Nuclear Technology and Chemistry & Biology
- Hubei University of Science and Technology
- Xianning 437100
- China
| | - Chun Lu
- Non-power Nuclear Technology Collaborative Innovation Center
- School of Nuclear Technology and Chemistry & Biology
- Hubei University of Science and Technology
- Xianning 437100
- China
| | - Haibing Guo
- Non-power Nuclear Technology Collaborative Innovation Center
- School of Nuclear Technology and Chemistry & Biology
- Hubei University of Science and Technology
- Xianning 437100
- China
| | - Chiara St. Amant
- Department of Chemistry
- William Paterson University of New Jersey
- Wayne
- USA
| | - Shaofa Sun
- Non-power Nuclear Technology Collaborative Innovation Center
- School of Nuclear Technology and Chemistry & Biology
- Hubei University of Science and Technology
- Xianning 437100
- China
| | - Yalan Xing
- Department of Chemistry
- William Paterson University of New Jersey
- Wayne
- USA
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15
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Novikov AS. Theoretical Studies of Cycloaddition to Metal-Activated Substrates with Isocyanide Ligands. RUSS J COORD CHEM+ 2018. [DOI: 10.1134/s1070328418040073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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16
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Il’in MV, Bolotin DS, Suslonov VV, Kukushkin VY. Facile selective synthesis of 2-methyl-5-amino-1,2,4-oxadiazolium bromides as further targets for nucleophilic additions. NEW J CHEM 2018. [DOI: 10.1039/c8nj01682h] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
The reaction of aminonitrones with isocyanides and Br2 gives 2-methyl-5-amino-1,2,4-oxadiazolium bromides, which are convenient precursors for other heterocycles and ureides.
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Affiliation(s)
- Mikhail V. Il’in
- Institute of Chemistry, Saint Petersburg State University
- Saint Petersburg
- Russian Federation
| | - Dmitrii S. Bolotin
- Institute of Chemistry, Saint Petersburg State University
- Saint Petersburg
- Russian Federation
| | - Vitalii V. Suslonov
- Center for X-ray Diffraction Studies
- Saint Petersburg State University
- Saint Petersburg
- Russian Federation
| | - Vadim Yu. Kukushkin
- Institute of Chemistry, Saint Petersburg State University
- Saint Petersburg
- Russian Federation
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18
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Zalivatskaya AS, Ryabukhin DS, Tarasenko MV, Ivanov AY, Boyarskaya IA, Grinenko EV, Osetrova LV, Kofanov ER, Vasilyev AV. Metal-free hydroarylation of the side chain carbon-carbon double bond of 5-(2-arylethenyl)-3-aryl-1,2,4-oxadiazoles in triflic acid. Beilstein J Org Chem 2017; 13:883-894. [PMID: 28546846 PMCID: PMC5433146 DOI: 10.3762/bjoc.13.89] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2017] [Accepted: 05/03/2017] [Indexed: 12/31/2022] Open
Abstract
The metal-free reaction of 5-(2-arylethenyl)-3-aryl-1,2,4-oxadiazoles with arenes in neat triflic acid (TfOH, CF3SO3H), both under thermal and microwave conditions, leads to 5-(2,2-diarylethyl)-3-aryl-1,2,4-oxadiazoles. The products are formed through the regioselective hydroarylation of the side chain carbon-carbon double bond of the starting oxadiazoles in yields up to 97%. According to NMR data and DFT calculations, N4,C-diprotonated forms of oxadiazoles are the electrophilic intermediates in this reaction.
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Affiliation(s)
- Anna S Zalivatskaya
- Department of Chemistry, Saint Petersburg State Forest Technical University, Institutsky per., 5, Saint Petersburg, 194021, Russia
| | - Dmitry S Ryabukhin
- Department of Chemistry, Saint Petersburg State Forest Technical University, Institutsky per., 5, Saint Petersburg, 194021, Russia
| | - Marina V Tarasenko
- Yaroslavl State Technical University, Moskovskiy pr., 88, Yaroslavl, 150023, Russia
| | - Alexander Yu Ivanov
- Center for Magnetic Resonance, Research park, Saint Petersburg State University, Universitetskiy pr., 26, Saint Petersburg, Petrodvoretz, 198504, Russia
| | - Irina A Boyarskaya
- Institute of Chemistry, Saint Petersburg State University, Universitetskaya nab., 7/9, Saint Petersburg, 199034, Russia
| | - Elena V Grinenko
- Department of Chemistry, Saint Petersburg State Forest Technical University, Institutsky per., 5, Saint Petersburg, 194021, Russia
| | - Ludmila V Osetrova
- Institute of Synthetic Rubber, Gapsalskaya str., 1, Saint Petersburg, 198035, Russia
| | - Eugeniy R Kofanov
- Yaroslavl State Technical University, Moskovskiy pr., 88, Yaroslavl, 150023, Russia
| | - Aleksander V Vasilyev
- Department of Chemistry, Saint Petersburg State Forest Technical University, Institutsky per., 5, Saint Petersburg, 194021, Russia
- Institute of Chemistry, Saint Petersburg State University, Universitetskaya nab., 7/9, Saint Petersburg, 199034, Russia
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19
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Melekhova AA, Novikov AS, Rostovskii NV, Sakharov PA, Panikorovskii TL, Bokach NA. Open-chain hemiketal is stabilized by coordination to a copper (II). INORG CHEM COMMUN 2017. [DOI: 10.1016/j.inoche.2017.03.024] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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20
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Melekhova AA, Smirnov AS, Novikov AS, Panikorovskii TL, Bokach NA, Kukushkin VY. Copper(I)-Catalyzed 1,3-Dipolar Cycloaddition of Ketonitrones to Dialkylcyanamides: A Step toward Sustainable Generation of 2,3-Dihydro-1,2,4-oxadiazoles. ACS OMEGA 2017; 2:1380-1391. [PMID: 31457510 PMCID: PMC6641119 DOI: 10.1021/acsomega.7b00130] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2017] [Accepted: 03/24/2017] [Indexed: 05/03/2023]
Abstract
CuI-catalyzed cycloaddition (CA) of the ketonitrones, Ph2C=N+(R')O- (R' = Me, CH2Ph), to the disubstituted cyanamides, NCNR2 (R = Me2, Et2, (CH2)4, (CH2)5, (CH2)4O, C9H10, (CH2Ph)2, Ph(Me)), gives the corresponding 5-amino-substituted 2,3-dihydro-1,2,4-oxadiazoles (15 examples) in good to moderate yields. The reaction proceeds under mild conditions (CH2Cl2, RT or 45 °C) and requires 10 mol % of [Cu(NCMe)4](BF4) as the catalyst. The somewhat reduced yields are due to the individual properties of 2,3-dihydro-1,2,4-oxadiazoles, which easily undergo ring opening via N-O bond splitting. Results of density functional theory calculations reveal that the CA of ketonitrones to CuI-bound cyanamides is a concerted process, and the copper-catalyzed reaction is controlled by the predominant contribution of the HOMOdipole-LUMOdipolarophile interaction (group I by Sustmann's classification). The metal-involving process is much more asynchronous and profitable from both kinetic and thermodynamic viewpoints than the hypothetical metal-free reaction.
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21
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Lasri J, Eltayeb NE, Haukka M, Babgi BA. Crystal structure of trans-di-chloridobis-[ N-(5,5-di-methyl-4,5-di-hydro-3 H-pyrrol-2-yl-κ N)acetamide]palladium(II) dihydrate. Acta Crystallogr E Crystallogr Commun 2017; 73:528-530. [PMID: 28435713 PMCID: PMC5382614 DOI: 10.1107/s2056989017003929] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2017] [Accepted: 03/10/2017] [Indexed: 11/25/2022]
Abstract
The title complex, [PdCl2(C8H14N2O)2]·2H2O, was obtained by N-O bond cleavage of the oxa-diazo-line rings of the trans-[di-chlorido-bis-(2,5,5-trimethyl-5,6,7,7a-tetra-hydro-pyrrolo-[1,2-b][1,2,4]oxa-diazole-N1)]palladium(II) complex. The palladium(II) atom exhibits an almost square-planar coordination provided by two trans-arranged chloride anions and a nitro-gen atom from each of the two neutral organic ligands. In the crystal, N-H⋯O, O-H⋯O and O-H⋯Cl hydrogen bonds link complex mol-ecules into double layers parallel to the bc plane.
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Affiliation(s)
- Jamal Lasri
- Department of Chemistry, Rabigh College of Science and Arts, PO Box 344, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Naser Eltaher Eltayeb
- Department of Chemistry, Rabigh College of Science and Arts, PO Box 344, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Matti Haukka
- University of Jyväskylä, Department of Chemistry, University of Jyväskylä, PO Box 35, FI-40014, Finland
| | - Bandar A. Babgi
- Department of Chemistry, Rabigh College of Science and Arts, PO Box 344, King Abdulaziz University, Jeddah, Saudi Arabia
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22
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Rabasa-Alcañiz F, Asensio A, Sánchez-Roselló M, Escolano M, del Pozo C, Fustero S. Intramolecular Nitrone Cycloaddition of α-(Trifluoromethyl)styrenes. Role of the CF3 Group in the Regioselectivity. J Org Chem 2017; 82:2505-2514. [DOI: 10.1021/acs.joc.6b02880] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
| | - Amparo Asensio
- Departamento
de Química Orgánica, Universidad de Valencia, 46100 Burjassot, Spain
| | | | - Marcos Escolano
- Departamento
de Química Orgánica, Universidad de Valencia, 46100 Burjassot, Spain
| | - Carlos del Pozo
- Departamento
de Química Orgánica, Universidad de Valencia, 46100 Burjassot, Spain
| | - Santos Fustero
- Departamento
de Química Orgánica, Universidad de Valencia, 46100 Burjassot, Spain
- Laboratorio
de Moléculas Orgánicas, Centro de Investigación Príncipe Felipe, 46012 Valencia, Spain
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23
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Kuznetsov ML, Kukushkin VY. Diversity of reactivity modes upon interplay between Au(iii)-bound isocyanides and cyclic nitrones: a theoretical consideration. Dalton Trans 2017; 46:786-802. [PMID: 28001162 DOI: 10.1039/c6dt03840a] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Metal-bound isocyanides demonstrate a very rich chemistry towards 1,3-dipoles of the allyl anion type such as nitrones. Depending on the metal centre, dipole nature and substituent in isocyanides, cycloadducts, imine + isocyanates or metallacycles may be formed. In this work, the reasons for such diversity, intimate details of the reaction mechanism and main factors determining the chemoselectivity in the reaction between Au(iii)-bound isocyanides ([AuCl3(C[triple bond, length as m-dash]NR)]) and cyclic nitrones -O-N[combining low line]+[double bond, length as m-dash]C(H)XXX[combining low line] (XXX = CH2CH2CMe2, CH2CH2CH2, OCH2CMe2, CH2OCMe2 and CH2CH2O) are analysed in detail by theoretical (DFT) methods. The formation of cycloadducts is controlled by the LUMOπ*(C[triple bond, length as m-dash]N) of isocyanides and it occurs in a stepwise manner via the initial nucleophilic addition of nitrone at the C atom of C[triple bond, length as m-dash]NR (except for nitronate -O-N[combining low line]+[double bond, length as m-dash]C(H)CH2CH2O[combining low line]). The imine + isocyanate products are formed upon oxygen transfer from nitrones to isocyanides, and N-O bond cleavage is the main factor determining this process. A metallacycle is formed upon decomposition of the cycloadduct, and this process includes deprotonation of the oxadiazoline CH group/N-O bond cleavage and Cl- elimination/cyclization. The main factor controlling the metallacycle formation is the acidity of the endocyclic CH group in the cycloadduct. Effects of the substituent R in C[triple bond, length as m-dash]NR and the nitrone nature on the reactivity are analysed.
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Affiliation(s)
- Maxim L Kuznetsov
- Centro de Química Estrutural, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisbon, Portugal. and International Group on Organometallic Chemistry, Institute of Chemistry, Saint Petersburg State University, 199034, Universitetskaya Nab., 7/9, Saint Petersburg, Russian Federation
| | - Vadim Yu Kukushkin
- International Group on Organometallic Chemistry, Institute of Chemistry, Saint Petersburg State University, 199034, Universitetskaya Nab., 7/9, Saint Petersburg, Russian Federation
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24
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Andrusenko EV, Kabin EV, Novikov AS, Bokach NA, Starova GL, Kukushkin VY. Metal-mediated generation of triazapentadienate-terminated di- and trinuclear μ2-pyrazolate NiIIspecies and control of their nuclearity. NEW J CHEM 2017. [DOI: 10.1039/c6nj02962k] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Nuclearity control of nickel(ii)–azole systems for the generation of well-defined (azolate)2NiIIspecies.
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Affiliation(s)
- Elena V. Andrusenko
- Institute of Chemistry
- Saint Petersburg State University
- Universitetskaya Nab. 7/9
- 199034
- Saint Petersburg
| | - Evgeniy V. Kabin
- Institute of Chemistry
- Saint Petersburg State University
- Universitetskaya Nab. 7/9
- 199034
- Saint Petersburg
| | - Alexander S. Novikov
- Institute of Chemistry
- Saint Petersburg State University
- Universitetskaya Nab. 7/9
- 199034
- Saint Petersburg
| | - Nadezhda A. Bokach
- Institute of Chemistry
- Saint Petersburg State University
- Universitetskaya Nab. 7/9
- 199034
- Saint Petersburg
| | - Galina L. Starova
- Institute of Chemistry
- Saint Petersburg State University
- Universitetskaya Nab. 7/9
- 199034
- Saint Petersburg
| | - Vadim Yu. Kukushkin
- Institute of Chemistry
- Saint Petersburg State University
- Universitetskaya Nab. 7/9
- 199034
- Saint Petersburg
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25
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Melekhova AA, Novikov AS, Panikorovskii TL, Bokach NA, Kukushkin VY. A novel family of homoleptic copper(i) complexes featuring disubstituted cyanamides: a combined synthetic, structural, and theoretical study. NEW J CHEM 2017. [DOI: 10.1039/c7nj02798b] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Homoleptic copper(i) complexes featuring disubstituted cyanamides were obtained and characterized using experimental methods and their properties were studied theoretically.
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Affiliation(s)
- Anna A. Melekhova
- Saint Petersburg State University
- 199034 Saint Petersburg
- Russian Federation
| | | | | | - Nadezhda A. Bokach
- Saint Petersburg State University
- 199034 Saint Petersburg
- Russian Federation
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26
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Bolotin DS, Il'in MV, Novikov AS, Bokach NA, Suslonov VV, Kukushkin VY. Trinuclear (aminonitrone)ZnII complexes as key intermediates in zinc(ii)-mediated generation of 1,2,4-oxadiazoles from amidoximes and nitriles. NEW J CHEM 2017. [DOI: 10.1039/c6nj03508f] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Amidoximes react with zinc salts in undried EtOAc furnishing the trinuclear species, where amidoximes are stabilized in the aminonitrone form.
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Affiliation(s)
- Dmitrii S. Bolotin
- Institute of Chemistry
- Saint Petersburg State University
- Saint Petersburg
- Russian Federation
| | - Mikhail V. Il'in
- Institute of Chemistry
- Saint Petersburg State University
- Saint Petersburg
- Russian Federation
| | - Alexander S. Novikov
- Institute of Chemistry
- Saint Petersburg State University
- Saint Petersburg
- Russian Federation
| | - Nadezhda A. Bokach
- Institute of Chemistry
- Saint Petersburg State University
- Saint Petersburg
- Russian Federation
| | - Vitalii V. Suslonov
- Center for X-ray Diffraction Studies
- Saint Petersburg State University
- Saint Petersburg
- Russian Federation
| | - Vadim Yu. Kukushkin
- Institute of Chemistry
- Saint Petersburg State University
- Saint Petersburg
- Russian Federation
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27
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Metal-involving generation of aminoheterocycles from N-substituted cyanamides: Toward sustainable chemistry (a Minireview). Inorganica Chim Acta 2017. [DOI: 10.1016/j.ica.2016.02.025] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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28
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Liu Y, Ao J, Paladhi S, Song CE, Yan H. Organocatalytic Asymmetric Synthesis of Chiral Dioxazinanes and Dioxazepanes with in Situ Generated Nitrones via a Tandem Reaction Pathway Using a Cooperative Cation Binding Catalyst. J Am Chem Soc 2016; 138:16486-16492. [DOI: 10.1021/jacs.6b10660] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yidong Liu
- Innovative
Drug Research Centre (IDRC), School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, China
| | - Jun Ao
- Innovative
Drug Research Centre (IDRC), School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, China
| | - Sushovan Paladhi
- Department
of Chemistry, Sungkyunkwan University, Suwon 440-746, Korea
| | - Choong Eui Song
- Department
of Chemistry, Sungkyunkwan University, Suwon 440-746, Korea
| | - Hailong Yan
- Innovative
Drug Research Centre (IDRC), School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, China
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29
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Kulish KI, Novikov AS, Tolstoy PM, Bolotin DS, Bokach NA, Zolotarev AA, Kukushkin VY. Solid state and dynamic solution structures of O-carbamidine amidoximes gives further insight into the mechanism of zinc(II)-mediated generation of 1,2,4-oxadiazoles. J Mol Struct 2016. [DOI: 10.1016/j.molstruc.2016.01.038] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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30
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Kinzhalov MA, Novikov AS, Luzyanin KV, Haukka M, Pombeiro AJL, Kukushkin VY. PdII-mediated integration of isocyanides and azide ions might proceed via formal 1,3-dipolar cycloaddition between RNC ligands and uncomplexed azide. NEW J CHEM 2016. [DOI: 10.1039/c5nj02564h] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The generation of (tetrazolate)PdII complexes via the integration of (isocyanide)PdII precursors with uncomplexed azides and the verification of plausible reaction mechanisms.
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Affiliation(s)
| | | | - Konstantin V. Luzyanin
- St. Petersburg State University
- St. Petersburg
- Russia
- Department of Chemistry
- University of Liverpool
| | - Matti Haukka
- Department of Chemistry
- University of Jyväskylä
- Finland
| | - Armando J. L. Pombeiro
- Centro de Química Estrutural
- Instituto Superior Técnico
- Universidade de Lisboa
- 1049-001 Lisbon
- Portugal
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31
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Smirnov AS, Kritchenkov AS, Bokach NA, Kuznetsov ML, Selivanov SI, Gurzhiy VV, Roodt A, Kukushkin VY. Regio- and Stereoselective 1,3-Dipolar Cycloaddition of Cyclic Azomethine Imines to Platinum(IV)-Bound Nitriles Giving Δ(2)-1,2,4-Triazoline Species. Inorg Chem 2015; 54:11018-30. [PMID: 26536298 DOI: 10.1021/acs.inorgchem.5b02246] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The complex trans-[PtCl4(EtCN)2] (14) reacts smoothly at 25 °C with the stable cyclic azomethine imines R(1)CH═N(a)NC(O)CH(NHC(O)C6H4R(3))C(b)H(C6H4R(2))((a-b)) [R(1)/R(2)/R(3) = p-Me/H/H (8); p-Me/p-Me/H (9); p-Me/p-MeO/H (10); p-Me/p-Cl/p-Cl (11); p-MeO/p-Me/H (12); p-MeO/p-Cl/m-Me (13)], and the reaction proceeds as stereoselective 1,3-dipolar cycloaddition to one of the EtCN ligands accomplishing the monocycloadducts trans-[PtCl4(EtCN){N(a)═C(Et)N(b)C(O)CH(NHC(O)C6H4R(3))CH(C6H4R(2))N(c)C(d)HR(1)}])((a-d;b-c)) [R(1)/R(2)/R(3) = p-Me/H/H (15); p-Me/p-Me/H (16); p-Me/p-MeO/H (17); p-Me/p-Cl/p-Cl (18); p-MeO/p-Me/H (19); p-MeO/p-Cl/m-Me (20)]. Inspection of the obtained and literature data indicate that the cycloaddition of the azomethine imines to the C≡N bonds of HCN and of Pt(IV)-bound EtCN has different regioselectivity leading to Δ(2)-1,2,3-triazolines and Δ(2)-1,2,4-triazolines, respectively. Platinum(II) species trans-[PtCl2(EtCN){N(a)═C(Et)N(b)C(O)CH(NHC(O)C6H4R(3))CH(C6H4R(2))N(c)C(d)HR(1)}]((a-d;b-c)) [R(1)/R(2)/R(3) = p-Me/H/H (21); p-Me/p-Me/H (22); p-Me/p-MeO/H (23); p-Me/p-Cl/p-Cl (24); p-MeO/p-Me/H (25); p-MeO/p-Cl/m-Me (26)] were obtained by a one-pot procedure from 14 and 8-13 followed by addition of the phosphorus ylide Ph3P═CHCO2Me. Δ(2)-1,2,4-Triazolines N(a)═C(Et)N(b)C(O)CH(NHC(O)C6H4R(3))CH(C6H4R(2))N(c)C(d)HR(1(a-d;b-c)) [R(1)/R(2)/R(3) = p-Me/H/H (27); p-Me/p-Me/H (28); p-Me/p-MeO/H (29); p-Me/p-Cl/p-Cl (30); p-MeO/p-Me/H (31); p-MeO/p-Cl/m-Me (32)] were liberated from 21-26 by the treatment with bis(diphenylphosphyno)ethane (dppe). Platinum(II) complexes 21-26 were characterized by elemental analyses (C, H, N), high-resolution electrospray ionization mass spectrometry (ESI-MS), and IR and (1)H and (13)C{(1)H} NMR spectroscopies and single crystal X-ray diffraction in the solid state for 25·CH3OH, 26·(CHCl3)0.84. The structure of 26 was also determined by COSY-90 and NOESY NMR methods in solution. Quantitative evaluation of several pairs of interproton distances obtained by NMR and X-ray diffraction agrees well with each other and with those obtained by the MM+ calculation method. Platinum(IV) complexes 15-20 were characterized by (1)H NMR spectroscopy. Metal-free 6,7-dihydropyrazolo[1,2-a][1,2,4]triazoles (27-32) were characterized by high-resolution ESI-MS and IR and (1)H and (13)C{(1)H} NMR spectroscopies and single crystal X-ray diffraction for 29·CDCl3. Theoretical density functional theory calculations were carried out for the investigation of the reaction mechanism, interpretation of the reactivity of Pt-bound and free nitriles toward azomethine imines and analysis of the regio- and stereoselectivity origin.
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Affiliation(s)
- Andrey S Smirnov
- Saint Petersburg State University , Universitetskaya nab. 7/9, 199034, Saint Petersburg, Russian Federation
| | - Andreii S Kritchenkov
- Saint Petersburg State University , Universitetskaya nab. 7/9, 199034, Saint Petersburg, Russian Federation
| | - Nadezhda A Bokach
- Saint Petersburg State University , Universitetskaya nab. 7/9, 199034, Saint Petersburg, Russian Federation
| | - Maxim L Kuznetsov
- Centro de Química Estrutural, Instituto Superior Técnico, Universidade de Lisboa , Av. Rovisco Pais, 1049-001 Lisbon, Portugal
| | - Stanislav I Selivanov
- Saint Petersburg State University , Universitetskaya nab. 7/9, 199034, Saint Petersburg, Russian Federation
| | - Vladislav V Gurzhiy
- Saint Petersburg State University , Universitetskaya nab. 7/9, 199034, Saint Petersburg, Russian Federation
| | - Andreas Roodt
- Department of Chemistry, University of the Free State , P.O. Box 339, Bloemfontein 9300, South Africa
| | - Vadim Yu Kukushkin
- Saint Petersburg State University , Universitetskaya nab. 7/9, 199034, Saint Petersburg, Russian Federation.,Institute of Macromolecular Compounds of Russian Academy of Sciences , V.O. Bolshoii Pr. 31, 199004 Saint Petersburg, Russian Federation
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32
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Zhao D, Zhang J, Xie Z. An Unprecedented Formal [5 + 2] Cycloaddition of Nitrones with o-Carboryne via Tandem [3 + 2] Cycloaddition/Oxygen Migration/Aromatization Sequence. J Am Chem Soc 2015; 137:13938-42. [DOI: 10.1021/jacs.5b09074] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Da Zhao
- Department of Chemistry and
State Key Laboratory of Synthetic Chemistry, The Chinese University of Hong Kong,
Shatin, N. T., Hong Kong, Hong Kong, China
| | - Jiji Zhang
- Department of Chemistry and
State Key Laboratory of Synthetic Chemistry, The Chinese University of Hong Kong,
Shatin, N. T., Hong Kong, Hong Kong, China
| | - Zuowei Xie
- Department of Chemistry and
State Key Laboratory of Synthetic Chemistry, The Chinese University of Hong Kong,
Shatin, N. T., Hong Kong, Hong Kong, China
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33
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LIC-KOR promoted nitrone reactivity: stereoselective synthesis of highly conjugated imines and secondary amines. Tetrahedron Lett 2015. [DOI: 10.1016/j.tetlet.2015.08.087] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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34
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Andrusenko EV, Kabin EV, Novikov AS, Bokach NA, Starova GL, Zolotarev AA, Kukushkin VY. Highly Reactive NiII-Bound Nitrile-Oxime Coupling Intermediates Stabilized by Substituting Conventional Nitriles with a Dialkylcyanamide. Eur J Inorg Chem 2015. [DOI: 10.1002/ejic.201500693] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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35
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Lasri J, Soliman SM, Januário Charmier MA, Ríos-Gutiérrez M, Domingo LR. Synthesis, molecular structure and stability of fused bicyclic Δ4-1,2,4-oxadiazoline Pt(II) complexes. Polyhedron 2015. [DOI: 10.1016/j.poly.2015.05.039] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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36
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Fehlhammer WP, Beck W. Azide Chemistry - An Inorganic Perspective, Part II[‡][3+2]-Cycloaddition Reactions of Metal Azides and Related Systems. Z Anorg Allg Chem 2015. [DOI: 10.1002/zaac.201500165] [Citation(s) in RCA: 59] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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37
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Espada MF, López-Serrano J, Poveda ML, Carmona E. Water-Promoted Generation of a Diazairida Homobarrelene by CC Coupling Between an Iridacyclic Alkylidene and Acetonitrile. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201503149] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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38
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Espada MF, López-Serrano J, Poveda ML, Carmona E. Water-Promoted Generation of a Diazairida Homobarrelene by CC Coupling Between an Iridacyclic Alkylidene and Acetonitrile. Angew Chem Int Ed Engl 2015; 54:8751-5. [DOI: 10.1002/anie.201503149] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2015] [Revised: 05/04/2015] [Indexed: 01/15/2023]
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39
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Serebryanskaya TV, Novikov AS, Gushchin PV, Zolotarev AA, Gurzhiy VV, Kukushkin VY. Coupling of platinated triguanides with platinum-activated nitriles as a novel strategy for generation of dimetallic systems. Dalton Trans 2015; 44:6003-11. [PMID: 25720690 DOI: 10.1039/c4dt03870c] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
One of two Pt(IV)-activated propanenitriles in trans-[PtCl4(EtCN)2] is involved in platinum(IV)-mediated nitrile-imine coupling with the platinum(II)-based metallacycles [PtCl2{NH=C(NR2)N(Ph)C(=NH)N(Ph)C(NR2)=NH}] [R2 = Me2 (1a), C5H10 (1b)] yielding diplatinum products, whose structures depend on molar ratios between the reactants. At a 1 : 1 ratio, the mixed-valence platinum(II)/platinum(IV) species [PtCl4{NH=C(NR2)N(Ph)C{=[(N(Et)C=NH)PtCl2(EtCN)]}N(Ph)C(NR2)=NH}] [R2 = Me2 (2a), (CH2)5 (2b)] were generated, whereas at a 1 : 2 ratio the dinuclear platinum(II)/platinum(II) complexes [PtCl2{NH=C(NR2)N(Ph)C{=[(N(Et)C=NH)PtCl2(EtCN)]}N(Ph)C(NR2)=NH}] [R2 = Me2 (3a), (CH2)5 (3b)] were obtained. In contrast to the nitrile-imine coupling observed for the platinum(IV) dinitrile complex, the reaction between the platinum(II) congener trans-[PtCl2(EtCN)2] and any one of 1a,b gives exclusively the substituted dimetallic platinum(II)/platinum(II) products [PtCl2{NH=C(NR2)N(Ph)C{=[(NH)PtCl2(EtCN)]}N(Ph)C(NR2)=NH}] [R2 = Me2 (6a), (CH2)5 (6b)] featuring platinum-containing guanidine 1 as one of the ligands. Complexes 2a,b, 3a,b, and 6a,b were characterized by elemental analyses (C, H, N), HRESI-MS, IR, (1)H NMR spectroscopy, and DTA/TG. The molecular and crystal structure of 2a·2CDCl3 was additionally studied by single-crystal X-ray diffraction. Complexes 2a,b undergo further redox transformation in solutions, and single crystals of [PtCl2{NH=C(NMe2)N(Ph)C{=[(N(Et)C=NH)PtCl2(MeCN)]}N(Ph)C(NMe2)=NH}]·2CH2Cl2 (3'a·2CH2Cl2) were obtained from 2a in a CH2Cl2-MeCN-C2H4Cl2 mixture and studied by X-ray crystallography. The driving forces for the generation of diplatinum products 2 and 3 were elucidated based on a quantum-chemical study.
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Affiliation(s)
- Tatiyana V Serebryanskaya
- Institute of Chemistry, Saint Petersburg State University, Universitetsky Pr. 26, 198504 Stary Petergof, Russian Federation.
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40
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Bolotin DS, Demakova MY, Novikov AS, Avdontceva MS, Kuznetsov ML, Bokach NA, Kukushkin VY. Bifunctional reactivity of amidoximes observed upon nucleophilic addition to metal-activated nitriles. Inorg Chem 2015; 54:4039-46. [PMID: 25822628 DOI: 10.1021/acs.inorgchem.5b00253] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Treatment of the aromatic nitrile complexes trans-[PtCl2(RC6H4CN)2] (R = p-CF3 NC1, H NC2, o-Cl NC3) with the aryl amidoximes p-R'C6H4C(NH2)=NOH (R' = Me AO1, H AO2, Br AO3, CF3 AO4, NO2 AO5) in all combinations, followed by addition of 1 equiv of AgOTf and then 5 equiv of Et3N, leads to the chelates [PtCl{HN=C(RC6H4)ON=C(C6H4R'-p)NC(RC6H4)═NH}] (1-15; 15 examples; yields 71-88% after column chromatography) derived from the platinum(II)-mediated coupling between metal-activated nitriles and amidoximes. The mechanism of this reaction was studied experimentally by trapping and identification of the reaction intermediates, and it was also investigated theoretically at the DFT level of theory. The combined experimental and theoretical results indicate that the coupling with the nitrile ligands involves both the HON and monodeprotonated NH2 groups of the amidoximes, whereas in the absence of the base, the NH2 functionality is inactive toward the coupling. The observed reaction represents the first example of bifunctional nucleophilic behavior of amidoximes. The complexes 1-16 were characterized by elemental analyses (C, H, N), high-resolution ESI(+)-MS, FTIR, and (1)H NMR techniques, whereas unstable 17 was characterized by HRESI(+)-MS and FTIR. In addition, 8·C4H8O2, 12, and 16·CHCl3 were studied by single-crystal X-ray diffraction.
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Affiliation(s)
- Dmitrii S Bolotin
- †Institute of Chemistry, Saint Petersburg State University, Universitetsky Pr. 26, 198504 Stary Petergof, Russian Federation
| | - Marina Ya Demakova
- †Institute of Chemistry, Saint Petersburg State University, Universitetsky Pr. 26, 198504 Stary Petergof, Russian Federation
| | - Alexander S Novikov
- †Institute of Chemistry, Saint Petersburg State University, Universitetsky Pr. 26, 198504 Stary Petergof, Russian Federation
| | - Margarita S Avdontceva
- ‡Institute of Earth Sciences, Saint Petersburg State University, University Emb. 7/9, 199034 Saint Petersburg, Russian Federation
| | - Maxim L Kuznetsov
- §Centro de Química Estrutural, Complexo I, Instituto Superior Técnico, Universidade de Lisboa, Avenida Rovisco Pais, 1049-001 Lisbon, Portugal
| | - Nadezhda A Bokach
- †Institute of Chemistry, Saint Petersburg State University, Universitetsky Pr. 26, 198504 Stary Petergof, Russian Federation
| | - Vadim Yu Kukushkin
- †Institute of Chemistry, Saint Petersburg State University, Universitetsky Pr. 26, 198504 Stary Petergof, Russian Federation.,∥Institute of Macromolecular Compounds of Russian Academy of Sciences, V.O. Bolshoii Pr. 31, 199004 Saint Petersburg, Russian Federation
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41
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Albertin G, Antoniutti S, Caia A, Castro J. Reactivity with Amines of Bis(cyanamide) and Bis(cyanoguanidine) Complexes of the Iron Triad. Z Anorg Allg Chem 2015. [DOI: 10.1002/zaac.201400591] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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42
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Smirnov AS, Yandanova ES, Bokach NA, Starova GL, Gurzhiy VV, Avdontceva MS, Zolotarev AA, Kukushkin VY. Zinc(ii)-mediated generation of 5-amino substituted 2,3-dihydro-1,2,4-oxadiazoles and their further ZnII-catalyzed and O2-involving transformations. NEW J CHEM 2015. [DOI: 10.1039/c5nj02061a] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
ZnII-activated cyanamides NCNR2 react with the acyclic N-alkyl ketonitrones Ph2CN+(O−)R′ achieving uncomplexed 2,3-dihydro-1,2,4-oxadiazoles.
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Affiliation(s)
| | | | | | | | | | | | | | - Vadim Yu. Kukushkin
- Saint Petersburg State University
- 199034 Saint Petersburg
- Russia
- Institute of Macromolecular Compounds of Russian Academy of Sciences
- 199004 Saint Petersburg
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43
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Demakova MY, Bolotin DS, Bokach NA, Starova GL, Kukushkin VY. Metal-mediated cyanamide–hydroxyguanidine coupling. Inorganica Chim Acta 2015. [DOI: 10.1016/j.ica.2014.10.015] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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44
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Wei F, Ren CL, Wang D, Liu L. Highly enantioselective [3+2] cycloaddition of vinylcyclopropane with nitroalkenes catalyzed by palladium(0) with a chiral bis(tert-amine) ligand. Chemistry 2014; 21:2335-8. [PMID: 25504908 DOI: 10.1002/chem.201405407] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2014] [Indexed: 11/09/2022]
Abstract
An enantioselective [3+2] cycloaddition of vinyl cyclopropane derived from 1,3-indanedione with nitroalkenes catalyzed by palladium(0) with a chiral bis(tert-amine) ligand was developed in high yields with good diastereoselectivities and excellent enantioselectivities. The resulting bis(tert-amine)-palladium complex proved to be a highly efficient catalyst for this cycloaddition.
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Affiliation(s)
- Feng Wei
- Beijing National Laboratory for Molecular Sciences (BNLMS), CAS Key Laboratory of Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190 (China), Fax: (+86)-10-62554614; University of Chinese Academy of Sciences, Beijing 100049 (China)
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45
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Nickel(II) complexes featuring dialkylcyanamide ligands: Synthetic and structural studies. Inorganica Chim Acta 2014. [DOI: 10.1016/j.ica.2014.08.022] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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46
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Bolotin DS, Kulish KI, Bokach NA, Starova GL, Gurzhiy VV, Kukushkin VY. Zinc(II)-Mediated Nitrile–Amidoxime Coupling Gives New Insights into H+-Assisted Generation of 1,2,4-Oxadiazoles. Inorg Chem 2014; 53:10312-24. [DOI: 10.1021/ic501333s] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Dmitrii S. Bolotin
- Institute of Chemistry, Saint Petersburg State University, Universitetsky Pr. 26, 198504 Stary Petergof, Russian Federation
| | - Kirill I. Kulish
- Institute of Chemistry, Saint Petersburg State University, Universitetsky Pr. 26, 198504 Stary Petergof, Russian Federation
| | - Nadezhda A. Bokach
- Institute of Chemistry, Saint Petersburg State University, Universitetsky Pr. 26, 198504 Stary Petergof, Russian Federation
| | - Galina L. Starova
- Institute of Chemistry, Saint Petersburg State University, Universitetsky Pr. 26, 198504 Stary Petergof, Russian Federation
| | - Vladislav V. Gurzhiy
- Institute of Earth Sciences, Saint Petersburg State University, University emb. 7/9, 199034 Saint Petersburg, Russian Federation
| | - Vadim Yu. Kukushkin
- Institute of Chemistry, Saint Petersburg State University, Universitetsky Pr. 26, 198504 Stary Petergof, Russian Federation
- Institute
of Macromolecular Compounds of Russian Academy of Sciences, V.O. Bolshoii Pr. 31, 199004 Saint Petersburg, Russian Federation
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47
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48
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Smirnov AS, Butukhanova ES, Bokach NA, Starova GL, Gurzhiy VV, Kuznetsov ML, Kukushkin VY. Novel (cyanamide)ZnIIcomplexes and zinc(ii)-mediated hydration of the cyanamide ligands. Dalton Trans 2014; 43:15798-811. [PMID: 25220287 DOI: 10.1039/c4dt01812e] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The ZnII-mediated hydration of cyanamides does not require any co-catalyst.
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Affiliation(s)
- Andrey S. Smirnov
- Institute of Chemistry
- Saint Petersburg State University
- 198504 Stary Petergof, Russian Federation
| | - Ekaterina S. Butukhanova
- Institute of Chemistry
- Saint Petersburg State University
- 198504 Stary Petergof, Russian Federation
| | - Nadezhda A. Bokach
- Institute of Chemistry
- Saint Petersburg State University
- 198504 Stary Petergof, Russian Federation
| | - Galina L. Starova
- Institute of Chemistry
- Saint Petersburg State University
- 198504 Stary Petergof, Russian Federation
| | - Vladislav V. Gurzhiy
- Institute of Chemistry
- Saint Petersburg State University
- 198504 Stary Petergof, Russian Federation
| | - Maxim L. Kuznetsov
- Centro de Química Estrutural
- Complexo I
- Instituto Superior Técnico
- Universidade de Lisboa
- 1049-001 Lisbon, Portugal
| | - Vadim Yu. Kukushkin
- Institute of Chemistry
- Saint Petersburg State University
- 198504 Stary Petergof, Russian Federation
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49
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Li GH, Zhou W, Li XX, Bi QW, Wang Z, Zhao ZG, Hu WX, Chen Z. Gold catalyzed enantioselective intermolecular [3+2] dipolar cycloaddition of N-allenyl amides with nitrones. Chem Commun (Camb) 2013; 49:4770-2. [PMID: 23589837 DOI: 10.1039/c3cc41769g] [Citation(s) in RCA: 76] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A gold catalyzed enantioselective [3+2] dipolar cycloaddition of N-allenyl amides with nitrones was developed to give chiral 4-alkylidenyl isoxazolidine derivatives in high yields and excellent enantioselectivities by using BINOL derived chiral phosphoramidate Au(I) catalysts.
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Affiliation(s)
- Guo-Hua Li
- Department of Chemistry, Renmin University of China, Beijing 100872, China
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50
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Merino P, Greco G, Tejero T, Hurtado-Guerrero R, Matute R, Chiacchio U, Corsaro A, Pistarà V, Romeo R. Stereoselective 1,3-dipolar cycloadditions of nitrones derived from amino acids. Asymmetric synthesis of N-(alkoxycarbonylmethyl)-3-hydroxypyrrolidin-2-ones. Tetrahedron 2013. [DOI: 10.1016/j.tet.2013.08.084] [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]
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