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Bornadiego A, Díaz J, Marcos CF. Tandem synthesis of 4-aminoxanthones is controlled by a water-assisted tautomerization: a general straightforward reaction. Org Biomol Chem 2019; 17:1410-1422. [DOI: 10.1039/c8ob02527d] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Iminolactone-aminofuran tautomerization is the rate-determining step in the multicomponent synthesis of xanthones from 3-carbonylchromones, isocyanides and dienophiles.
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Affiliation(s)
- Ana Bornadiego
- Laboratory of Bioorganic Chemistry & Membrane Biophysics (L.O.B.O.)
- School of Veterinary Sciences
- University of Extremadura
- 10071 Cáceres
- Spain
| | - Jesús Díaz
- Laboratory of Bioorganic Chemistry & Membrane Biophysics (L.O.B.O.)
- School of Veterinary Sciences
- University of Extremadura
- 10071 Cáceres
- Spain
| | - Carlos F. Marcos
- Laboratory of Bioorganic Chemistry & Membrane Biophysics (L.O.B.O.)
- School of Veterinary Sciences
- University of Extremadura
- 10071 Cáceres
- Spain
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2
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Liu B, Guo CL, Liu WX, Guo ME, Yan F, Xue LS, Wang H, Liu CL, Jin S. Syntheses, structural characterisation and electronic structures of ferrocenyl-osmafuran heterobinuclear organometallic complexes. Dalton Trans 2017; 46:15803-15811. [DOI: 10.1039/c7dt03145a] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
The electron transfer through the backbone of metallafurans was studied by spectroelectrochemistry and theoretical calculation.
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Affiliation(s)
- Bin Liu
- Key Laboratory of Pesticide and Chemical Biology
- Ministry of Education
- College of Chemistry
- Central China Normal University
- Wuhan 430079
| | - Chun-Lan Guo
- Key Laboratory of Pesticide and Chemical Biology
- Ministry of Education
- College of Chemistry
- Central China Normal University
- Wuhan 430079
| | - Wen-Xia Liu
- Key Laboratory of Pesticide and Chemical Biology
- Ministry of Education
- College of Chemistry
- Central China Normal University
- Wuhan 430079
| | - Ming-E. Guo
- Key Laboratory of Pesticide and Chemical Biology
- Ministry of Education
- College of Chemistry
- Central China Normal University
- Wuhan 430079
| | - Feng Yan
- Key Laboratory of Pesticide and Chemical Biology
- Ministry of Education
- College of Chemistry
- Central China Normal University
- Wuhan 430079
| | - Lu-Sha Xue
- Key Laboratory of Pesticide and Chemical Biology
- Ministry of Education
- College of Chemistry
- Central China Normal University
- Wuhan 430079
| | - Huijuan Wang
- Wuhan Institute of Physics and Mathematics
- Chinese Academy of Sciences
- Wuhan 430079
- P.R. China
| | - Chang-Lin Liu
- Key Laboratory of Pesticide and Chemical Biology
- Ministry of Education
- College of Chemistry
- Central China Normal University
- Wuhan 430079
| | - Shan Jin
- Key Laboratory of Pesticide and Chemical Biology
- Ministry of Education
- College of Chemistry
- Central China Normal University
- Wuhan 430079
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3
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El-Bayouki KAM, Basyouni WM, Khatab TK, Kandel EM, Badawy DS, Abdel-Galil E, El-Henawy AA. Efficient One-pot Synthesis, Antimicrobial and Docking Studies of Some Newer Tetrahydro-4H-benzo [1,3-e]oxazines and Related β-Acylamino Ketone Derivatives. J Heterocycl Chem 2016. [DOI: 10.1002/jhet.2674] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Khairy A. M. El-Bayouki
- Organometallic and Organometalloid Chemistry Department; National Research Centre; Dokki Cairo Egypt
| | - Wahid M. Basyouni
- Organometallic and Organometalloid Chemistry Department; National Research Centre; Dokki Cairo Egypt
| | - Tamer K. Khatab
- Organometallic and Organometalloid Chemistry Department; National Research Centre; Dokki Cairo Egypt
| | - Ezzat M. Kandel
- Chemistry Department, Faculty of Science; Mansoura University; Mansoura Egypt
| | - Doria S. Badawy
- Chemistry Department, Faculty of Science; Mansoura University; Mansoura Egypt
| | - Ebrahim Abdel-Galil
- Chemistry Department, Faculty of Science; Mansoura University; Mansoura Egypt
| | - Ahmed A. El-Henawy
- Chemistry Department, Faculty of Science; Al-Azhar University; Cairo Egypt
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4
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Wichmann A, Schnurpfeil G, Backenköhler J, Kolke L, Azov VA, Wöhrle D, Bäumer M, Wittstock A. A versatile synthetic strategy for nanoporous gold–organic hybrid materials for electrochemistry and photocatalysis. Tetrahedron 2014. [DOI: 10.1016/j.tet.2014.03.091] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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5
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Zhang X, Zou X, Yan H. Synthesis of Boron-Fused 1,4-Dithiin via Cobalt-Mediated Disulfuration of Alkyne at the o-Carborane-9,12-dithiolate Unit. Organometallics 2014. [DOI: 10.1021/om500411b] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Xiaolei Zhang
- State Key Laboratory
of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, Jiangsu 210093, China
| | - Xiaodong Zou
- State Key Laboratory
of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, Jiangsu 210093, China
| | - Hong Yan
- State Key Laboratory
of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, Jiangsu 210093, China
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6
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Li S, Wang Z, Wei Y, Wu C, Gao S, Jiang H, Zhao X, Yan H, Wang X. Antimicrobial activity of a ferrocene-substituted carborane derivative targeting multidrug-resistant infection. Biomaterials 2013; 34:902-11. [DOI: 10.1016/j.biomaterials.2012.10.069] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2012] [Accepted: 10/30/2012] [Indexed: 11/25/2022]
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7
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Ye H, Bai W, Xie M, Li Y, Yan H. Reactivity of a 16‐Electron CpCo Half‐Sandwich Complex Containing a Chelating 1,2‐Dicarba‐
closo
‐dodecaborane‐1,2‐diselenolate Ligand towards FcC(O)C≡CH. Eur J Inorg Chem 2011. [DOI: 10.1002/ejic.201100159] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Hongde Ye
- State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, Jiangsu 210093, China, Fax: +86‐25‐83314502
- Department of Chemistry, Shangrao Normal University, Jiangxi 334001, China
| | - Wenjun Bai
- State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, Jiangsu 210093, China, Fax: +86‐25‐83314502
| | - Mingshi Xie
- State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, Jiangsu 210093, China, Fax: +86‐25‐83314502
| | - Yizhi Li
- State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, Jiangsu 210093, China, Fax: +86‐25‐83314502
| | - Hong Yan
- State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, Jiangsu 210093, China, Fax: +86‐25‐83314502
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Arezki A, Chabot G, Quentin L, Scherman D, Jaouen G, Brulé E. Synthesis and biological evaluation of novel ferrocenyl curcuminoid derivatives. MEDCHEMCOMM 2011; 2:190-195. [PMID: 23967373 DOI: 10.1039/c0md00231c] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
With the purpose to improve the biological activities of curcumin, eight novel ferrocenyl curcuminoids were synthesized by covalent anchorage of three different ferrocenyl ligands. We evaluated their cytotoxicity on B16 melanoma cells and normal NIH 3T3 cells, their inhibition of tubulin polymerization and their effect on the morphology of endothelial cells. The presence of a ferrocenyl side chain was clearly shown to improve the biological activity of most of their corresponding organic curcuminoid analogues.
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Affiliation(s)
- Anusch Arezki
- Laboratoire Charles Friedel Chimie ParisTech CNRS : UMR7223 Université Paris VI - Pierre et Marie Curie 11 rue Pierre et Marie Curie 72531 Paris Cedex 05, FR
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9
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Ye H, Xu B, Xie M, Li Y, Yan H. Disulfuration and hydrosulfuration of an alkyne at a 1,2-dicarba-closo-dodecaborane-thiolate ligand. Dalton Trans 2011; 40:6541-6. [DOI: 10.1039/c1dt10315f] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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10
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Ye HD, Ding GY, Xie MS, Li YZ, Yan H. Reactivity of the 16eCp*Co half-sandwich complex containing a chelating 1,2-dicarba-closo-dodecaborane-1,2-dithiolate ligand towards alkynes. Dalton Trans 2011; 40:2306-13. [DOI: 10.1039/c0dt00933d] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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11
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Andrada DM, Granados AM, Solà M, Fernández I. DFT Study of Thermal 1,3-Dipolar Cycloaddition Reactions between Alkynyl Metal(0) Fischer Carbene Complexes and 3H-1,2-Dithiole-3-thione Derivatives. Organometallics 2010. [DOI: 10.1021/om1007105] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Diego M. Andrada
- Instituto de Investigaciones en Fisicoquímica de Córdoba, Departamento de Química Orgánica, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Ciudad Universitaria 5016, Córdoba, Argentina
| | - Alejandro M. Granados
- Instituto de Investigaciones en Fisicoquímica de Córdoba, Departamento de Química Orgánica, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Ciudad Universitaria 5016, Córdoba, Argentina
| | - Miquel Solà
- Institut de Química Computacional and Departament de Química, Universitat de Girona, Campus Montilivi 17071 Girona, Catalonia, Spain
| | - Israel Fernández
- Departamento de Química Orgánica, Facultad de Química, Universidad Complutense, 28040 Madrid, Spain
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Mamane V. The diastereoselective ortho-lithiation of Kagan’s ferrocenyl acetal. Generation and reactivity of chiral 2-substituted ferrocenecarboxaldehydes. ACTA ACUST UNITED AC 2010. [DOI: 10.1016/j.tetasy.2010.03.012] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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13
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14
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Ismaili H, Alizadeh A, Snell KE, Workentin MS. Remarkable high-yielding chemical modification of gold nanoparticles using uncatalyzed click-type 1,3-dipolar cycloaddition chemistry and hyperbaric conditions. CAN J CHEM 2009. [DOI: 10.1139/v09-138] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Azide-terminated alkyl thiolate monolayer-protected gold nanoparticles (1-C12MPN) with a core size of 1.8 ± 0.2 nm were prepared. 1-C12MPN was modified in high yields via an uncatalyzed 1,3-dipolar cycloaddition (click-type reaction) with a variety of terminal acyl–alkynes under hyperbaric conditions at 11 000 atm. The resulting 1,2,3-triazole modified MPNs (2-C12MPN) were characterized using 1H NMR spectroscopy and were verified by comparison of the spectra to those obtained for the products of the model reactions of 1-azidododecane with the same alkynes. TEM analysis showed that the high-pressure conditions did not affect the size of the gold core, suggesting that the only effect is to facilitate the chemical reaction on the particles.
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Affiliation(s)
- Hossein Ismaili
- Department of Chemistry, The University of Western Ontario, London, ON N6A 5B7
| | - Abdolhamid Alizadeh
- Department of Chemistry, The University of Western Ontario, London, ON N6A 5B7
| | - Kristen E. Snell
- Department of Chemistry, The University of Western Ontario, London, ON N6A 5B7
| | - Mark S. Workentin
- Department of Chemistry, The University of Western Ontario, London, ON N6A 5B7
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16
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Role of a distal pocket in the catalytic O2 reduction by cytochrome c oxidase models immobilized on interdigitated array electrodes. Proc Natl Acad Sci U S A 2009; 106:7320-3. [PMID: 19380725 DOI: 10.1073/pnas.0902285106] [Citation(s) in RCA: 52] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Five iron porphyrins with different superstructures were immobilized on self-assembled-monolayer (SAM)-coated interdigitated-array (IDAs) gold-platinum electrodes. The selectivity of the catalysts i.e., limited formation of partially reduced oxygen species (PROS) in the electrocatalytic reduction of dioxygen, is a function of 2 rates: (i) the rate of electron transfer from the electrode to the catalyst, which is controlled by the length, and conjugation of the linker from the catalyst to the electrode and (ii) the rate of bound oxygen (superoxide) hydrolysis, which correlates with the presence of a water cluster in the gas-binding pocket influencing the rate of oxygen binding; these factors are controlled by the nature of the porphyrin superstructure. The structurally biomimetic Tris-imidazole model is the most selective.
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Collman JP, Devaraj NK, Eberspacher TPA, Chidsey CED. Mixed azide-terminated monolayers: a platform for modifying electrode surfaces. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2006; 22:2457-64. [PMID: 16519441 PMCID: PMC1513191 DOI: 10.1021/la052947q] [Citation(s) in RCA: 271] [Impact Index Per Article: 15.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/07/2023]
Abstract
We have prepared and characterized mixed self-assembled monolayers (SAM) on gold electrodes from azido alkane thiols and various omega-functionalized alkane thiols. In the presence of copper(I) catalysts, these azide-modified surfaces are shown to react rapidly and quantitatively with terminal acetylenes forming 1,2,3-triazoles, via "click" chemistry. The initial azide substituents can be identified and monitored using both grazing-angle infrared (IR) and X-ray photoelectron spectrosopies. Acetylenes possessing redox-active ferrocene substituents react with the azide-terminated mixed SAMs and electrochemical measurements of the ferrocene-modified SAM electrodes have been used to quantify the redox centers attached to these platforms. Time-resolved electrochemical measurements have enabled us to follow the formation of these ferrocene centers and thus to measure the rate of the surface "click" reaction. Under optimal conditions this well-behaved second-order reaction takes place with a rate constant of 1 x 10(3) M(-)(1) s(-)(1). Typical reaction times of several minutes were realized using micromolar concentrations of acetylene. These techniques have been used to construct well-characterized, covalently modified monolayers that can be employed as functional electrode surfaces.
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Affiliation(s)
- James P Collman
- Department of Chemistry, Stanford University, Stanford, California 94305, USA.
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García‐Valverde M, Torroba T. Heterocyclic Chemistry of Sulfur Chlorides – Fast Ways to Complex Heterocycles. European J Org Chem 2006. [DOI: 10.1002/ejoc.200500786] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- María García‐Valverde
- Química Orgánica, Facultad de Ciencias, Universidad de Burgos, 09001 Burgos, Spain, Fax: +34‐947‐258087
| | - Tomás Torroba
- Química Orgánica, Facultad de Ciencias, Universidad de Burgos, 09001 Burgos, Spain, Fax: +34‐947‐258087
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20
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Sarhan AEWA. Synthesis and applications of tetrathiafulvalenes and ferrocene-tetrathiafulvalenes and related compounds. Tetrahedron 2005. [DOI: 10.1016/j.tet.2005.02.028] [Citation(s) in RCA: 48] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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21
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Neo AG, Delgado J, Polo C, Marcaccini S, Marcos CF. A new synthesis of β-keto amides by reduction of Passerini adducts. Tetrahedron Lett 2005. [DOI: 10.1016/j.tetlet.2004.11.041] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Barriga S, Fuertes P, Marcos CF, Torroba T. Synthesis of highly branched sulfur-nitrogen heterocycles by cascade cycloadditions of [1,2]dithiolo[1,4]thiazines and [1,2]dithiolopyrroles. J Org Chem 2004; 69:3672-82. [PMID: 15152996 DOI: 10.1021/jo035748p] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
We report the synthesis of some new polysulfur-nitrogen heterocycles by cascade cycloadditions to readily available polycyclic 1,2-dithiole-3-thiones. Thus, treatment of bis[1,2]dithiolopyrrole dithione 1 with dimethyl acetylenedicarboxylate (DMAD) or dibenzoylacetylene (DBA) gave the 1:4 adducts 2a,b and 3a. On the other hand, cycloaddition of bis[1,2]dithiolo[1,4]thiazine dithiones 4a-d with the same dipolarophiles gave the 1:2, 1:3, or 1:4 adducts 5a-c, 6a, 7a, 8a, 9a, and 10a,c,d selectively in fair to high yields. Reaction conditions were crucial for achievement of selectivity in thermal reactions. Catalysis by scandium triflate was used in the reaction of 4a and 2 equiv of DMAD. Treatment of the [1,2]dithiolo[1,4]thiazine dithione 11 with DBA gave the 1:2, 1:3 (two isomers), and 1:4 adducts 12-14 and 15a-d selectively. Cyclic voltammetry of selected examples showed irreversible processes that were not influenced by peripheral groups bonded to the heterocyclic system.
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Affiliation(s)
- Susana Barriga
- Departamento de Química, Facultad de Ciencias, Universidad de Burgos, 09001 Burgos, Spain
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