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Carceller JM, Arias KS, Climent MJ, Iborra S, Corma A. One-pot chemo- and photo-enzymatic linear cascade processes. Chem Soc Rev 2024; 53:7875-7938. [PMID: 38965865 DOI: 10.1039/d3cs00595j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/06/2024]
Abstract
The combination of chemo- and photocatalyses with biocatalysis, which couples the flexible reactivity of the photo- and chemocatalysts with the highly selective and environmentally friendly nature of enzymes in one-pot linear cascades, represents a powerful tool in organic synthesis. However, the combination of photo-, chemo- and biocatalysts in one-pot is challenging because the optimal operating conditions of the involved catalyst types may be rather different, and the different stabilities of catalysts and their mutual deactivation are additional problems often encountered in one-pot cascade processes. This review explores a large number of transformations and approaches adopted for combining enzymes and chemo- and photocatalytic processes in a successful way to achieve valuable chemicals and valorisation of biomass. Moreover, the strategies for solving incompatibility issues in chemo-enzymatic reactions are analysed, introducing recent examples of the application of non-conventional solvents, enzyme-metal hybrid catalysts, and spatial compartmentalization strategies to implement chemo-enzymatic cascade processes.
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Affiliation(s)
- J M Carceller
- Instituto de Tecnología Química (Universitat Politècnica de València-Agencia Estatal Consejo Superior de Investigaciones Científicas), Avda dels Tarongers s/n, 46022, Valencia, Spain.
| | - K S Arias
- Instituto de Tecnología Química (Universitat Politècnica de València-Agencia Estatal Consejo Superior de Investigaciones Científicas), Avda dels Tarongers s/n, 46022, Valencia, Spain.
| | - M J Climent
- Instituto de Tecnología Química (Universitat Politècnica de València-Agencia Estatal Consejo Superior de Investigaciones Científicas), Avda dels Tarongers s/n, 46022, Valencia, Spain.
| | - S Iborra
- Instituto de Tecnología Química (Universitat Politècnica de València-Agencia Estatal Consejo Superior de Investigaciones Científicas), Avda dels Tarongers s/n, 46022, Valencia, Spain.
| | - A Corma
- Instituto de Tecnología Química (Universitat Politècnica de València-Agencia Estatal Consejo Superior de Investigaciones Científicas), Avda dels Tarongers s/n, 46022, Valencia, Spain.
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2
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Bakulina O, Sapegin A, Bunev AS, Krasavin M. Synthetic approaches to constructing proteolysis targeting chimeras (PROTACs). MENDELEEV COMMUNICATIONS 2022. [DOI: 10.1016/j.mencom.2022.07.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
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3
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Selective Aerobic Oxidation of P-Methoxytoluene by Co(II)-Promoted NHPI Incorporated into Cross-Linked Copolymer Structure. Catalysts 2021. [DOI: 10.3390/catal11121474] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
A wide series of copolymer materials with various contents of 4-vinyl-diisopropyl-phtalate ester (10–90 mol%), divinylbenzene (1–11 mol%) and styrene, as monomers, were obtained by radical copolymerization. In the last steps of the synthesis, diisopropyl ester functionalities were converted into the form of N-hydroxyphthalimide (NHPI) rings. The obtained materials with the NHPI groups immobilized in the copolymer structure were studied by various physicochemical techniques, including FT-IR, UV-Vis-DR, XPS, elemental analysis, and tested as catalysts in aerobic oxidation of p-methoxytoluene in the presence of Co(II) acetate co-catalyst. Conversion of the aromatic substrate was correlated with the NHPI content and cross-linking degree. The best catalytic performance (conversions higher than 23%) was achieved for the copolymer catalysts containing 60% and 30% of 4-vinyl-diisopropyl-phtalate ester. At too high concentrations of NHPI and DVB, some of the NHPI groups were transformed into inactive (C=O)-N=O species or not available due to embedding inside the copolymer structure. The mechanism of the process involving both NHPI centers, forming phthalimide N-oxyl (PINO) radicals, and Co(II) cations was discussed. Stability of the developed catalysts was also tested. The opening of imide rings took place during the catalytic process, resulting in the formation of carboxyl groups and the release of hydroxylamine molecules. The deactivated catalyst could be easily regenerated by repeating two last steps of closing imide ring.
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Findrik Blažević Z, Milčić N, Sudar M, Majerić Elenkov M. Halohydrin Dehalogenases and Their Potential in Industrial Application – A Viewpoint of Enzyme Reaction Engineering. Adv Synth Catal 2020. [DOI: 10.1002/adsc.202000984] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Zvjezdana Findrik Blažević
- University of Zagreb Faculty of Chemical Engineering and Technology Savska c. 16 HR-10000 Zagreb Croatia
| | - Nevena Milčić
- University of Zagreb Faculty of Chemical Engineering and Technology Savska c. 16 HR-10000 Zagreb Croatia
| | - Martina Sudar
- University of Zagreb Faculty of Chemical Engineering and Technology Savska c. 16 HR-10000 Zagreb Croatia
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Hosseinzadeh R, Mavvaji M, Tajbakhsh M, Lasemi Z, Aghili N. Selective Oxidation of Hydrocarbons and Alcohols Using Phen-MCM-41 as an Efficient Co-Catalyst in Combination with NHPI-Based Nano-Magnetic Catalyst. ORG PREP PROCED INT 2020. [DOI: 10.1080/00304948.2020.1716434] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Rahman Hosseinzadeh
- Department of Organic Chemistry, Faculty of Chemistry, University of Mazandaran, Babolsar, Iran
| | - Mohammad Mavvaji
- Department of Organic Chemistry, Faculty of Chemistry, University of Mazandaran, Babolsar, Iran
| | - Mahmood Tajbakhsh
- Department of Organic Chemistry, Faculty of Chemistry, University of Mazandaran, Babolsar, Iran
| | - Zahra Lasemi
- Department of Chemistry, Firoozkooh Branch, Islamic Azad University, Firoozkooh, Iran
| | - Nora Aghili
- Department of Organic Chemistry, Faculty of Chemistry, University of Mazandaran, Babolsar, Iran
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Aguirre-Pranzoni C, Tosso RD, Bisogno FR, Kurina-Sanz M, Orden AA. Preparation of chiral β-hydroxytriazoles in one-pot chemoenzymatic bioprocesses catalyzed by Rhodotorula mucilaginosa. Process Biochem 2019. [DOI: 10.1016/j.procbio.2018.12.011] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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7
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Synthesis and characterization of N-hydroxyphthalimide immobilized on NaY nano-zeolite as a novel and efficient catalyst for the selective oxidation of hydrocarbons and benzyl alcohols. REACTION KINETICS MECHANISMS AND CATALYSIS 2018. [DOI: 10.1007/s11144-018-1354-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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8
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Synthesis and characterization of N-hydroxyphthalimide immobilized on SiO2-coated Fe3O4 nanoparticles as magnetic catalyst for oxidation of benzyl alcohols and hydrocarbons. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY 2018. [DOI: 10.1007/s13738-017-1288-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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9
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Roohi H, Rajabi M. Noncatalytic Liquid Phase Air Oxidation of Ethylbenzene to 1-Phenyl Ethyl Hydroperoxide in Low Oxygen Volume Fraction. Org Process Res Dev 2018. [DOI: 10.1021/acs.oprd.7b00284] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Hossein Roohi
- Department
of Chemistry, Faculty of Science, University of Guilan, Rasht, Iran
| | - Mehrdad Rajabi
- Department
of Chemistry, University Campus 2, University of Guilan, Rasht, Iran
- Research Department, National Petrochemical Co., Research & Technology, Arak, Iran
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Chen K, Xie H. Selective aerobic oxidation promoted by highly efficient multi-nitroxy organocatalysts. CHINESE JOURNAL OF CATALYSIS 2017. [DOI: 10.1016/s1872-2067(17)62777-3] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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11
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Wang HY, Huang K, De Jesús M, Espinosa S, Piñero-Santiago LE, Barnes CL, Ortiz-Marciales M. Synthesis of enantiopure 1,2-azido and 1,2-amino alcohols via regio- and stereoselective ring-opening of enantiopure epoxides by sodium azide in hot water. TETRAHEDRON, ASYMMETRY 2016; 27:91-100. [PMID: 26843787 PMCID: PMC4733893 DOI: 10.1016/j.tetasy.2015.12.002] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
A practical and convenient method for the efficient and regio- and stereoselective ring-opening of enantiopure monosubstituted epoxides by sodium azide under hydrolytic conditions is reported. The ring-opening of enantiopure styryl and pyridyl (S)-epoxides by N3- in hot water takes place preferentially at the internal position with complete inversion of configuration to produce (R)-2-azido ethanols with up to 99% enantio- and regioselectivity, while the (S)-adamantyl oxirane provides mainly the (S)-1-adamantyl-2-azido ethanol in excellent yield. In general, 1,2-amino ethanols were obtained in high yield and excellent enantiopurity by the reduction of the chiral 1,2-azido ethanols with PPh3 in water/THF, and then converted into the Boc or acetamide derivatives.
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Affiliation(s)
- Hai-Yang Wang
- Department of Chemistry, University of Puerto Rico-Humacao, CALL BOX 860, Humacao, PR 00792, USA
| | - Kun Huang
- Department of Chemistry, University of Puerto Rico-Humacao, CALL BOX 860, Humacao, PR 00792, USA
| | - Melvin De Jesús
- Department of Chemistry, University of Puerto Rico-Humacao, CALL BOX 860, Humacao, PR 00792, USA
| | - Sandraliz Espinosa
- Department of Chemistry, University of Puerto Rico-Humacao, CALL BOX 860, Humacao, PR 00792, USA
| | - Luis E. Piñero-Santiago
- Department of Chemistry, University of Puerto Rico-Humacao, CALL BOX 860, Humacao, PR 00792, USA
| | - Charles L. Barnes
- Department of Chemistry, University of Missouri, Columbia, MO 65211, USA
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Gao B, Meng S, Yang X. Synchronously Synthesizing and Immobilizing N-Hydroxyphthalimide on Polymer Microspheres and Catalytic Performance of Solid Catalyst in Oxidation of Ethylbenzene by Molecular Oxygen. Org Process Res Dev 2015. [DOI: 10.1021/acs.oprd.5b00108] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Baojiao Gao
- Department of Chemical Engineering, North University of China, Taiyuan 030051, People’s Republic of China
| | - Suqing Meng
- Department of Chemical Engineering, North University of China, Taiyuan 030051, People’s Republic of China
| | - Xiaolin Yang
- Department of Chemical Engineering, North University of China, Taiyuan 030051, People’s Republic of China
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13
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Polymer-Supported N-Hydroxyphthalimide as Catalyst for Toluene and p-Methoxytoluene Aerobic Oxidation. Catal Letters 2015. [DOI: 10.1007/s10562-015-1578-4] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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14
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Galenko AV, Khlebnikov AF, Novikov MS, Pakalnis VV, Rostovskii NV. Recent advances in isoxazole chemistry. RUSSIAN CHEMICAL REVIEWS 2015. [DOI: 10.1070/rcr4503] [Citation(s) in RCA: 66] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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15
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K. Snyder J, Cai C, A. Audet M. N,N-Bond Formation in Intramolecular Cobalt-Catalyzed [2+2+2] Cyclizations of Alkynyl-Linked Bisnitriles, and the Preparation of Annulated Pyridazines. HETEROCYCLES 2014. [DOI: 10.3987/com-13-s(s)30] [Citation(s) in RCA: 8] [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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Berg R, Straub BF. Advancements in the mechanistic understanding of the copper-catalyzed azide-alkyne cycloaddition. Beilstein J Org Chem 2013; 9:2715-50. [PMID: 24367437 PMCID: PMC3869285 DOI: 10.3762/bjoc.9.308] [Citation(s) in RCA: 169] [Impact Index Per Article: 15.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2013] [Accepted: 10/30/2013] [Indexed: 12/21/2022] Open
Abstract
The copper-catalyzed azide-alkyne cycloaddition (CuAAC) is one of the most broadly applicable and easy-to-handle reactions in the arsenal of organic chemistry. However, the mechanistic understanding of this reaction has lagged behind the plethora of its applications for a long time. As reagent mixtures of copper salts and additives are commonly used in CuAAC reactions, the structure of the catalytically active species itself has remained subject to speculation, which can be attributed to the multifaceted aggregation chemistry of copper(I) alkyne and acetylide complexes. Following an introductory section on common catalyst systems in CuAAC reactions, this review will highlight experimental and computational studies from early proposals to very recent and more sophisticated investigations, which deliver more detailed insights into the CuAAC's catalytic cycle and the species involved. As diverging mechanistic views are presented in articles, books and online resources, we intend to present the research efforts in this field during the past decade and finally give an up-to-date picture of the currently accepted dinuclear mechanism of CuAAC. Additionally, we hope to inspire research efforts on the development of molecularly defined copper(I) catalysts with defined structural characteristics, whose main advantage in contrast to the regularly used precatalyst reagent mixtures is twofold: on the one hand, the characteristics of molecularly defined, well soluble catalysts can be tuned according to the particular requirements of the experiment; on the other hand, the understanding of the CuAAC reaction mechanism can be further advanced by kinetic studies and the isolation and characterization of key intermediates.
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Affiliation(s)
- Regina Berg
- Organisch-Chemisches Institut, Ruprecht-Karls-Universität Heidelberg, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany
| | - Bernd F Straub
- Organisch-Chemisches Institut, Ruprecht-Karls-Universität Heidelberg, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany
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Cornier PG, Boggián DB, Mata EG, Delpiccolo CM. Solid-phase based synthesis of biologically promising triazolyl aminoacyl (peptidyl) penicillins. Tetrahedron Lett 2012. [DOI: 10.1016/j.tetlet.2011.11.113] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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18
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Gaucher-Wieczorek FS, Maillard LT, Badet B, Durand P. Fluorous tagged N-hydroxy phthalimide for the parallel synthesis of O-aryloxyamines. ACTA ACUST UNITED AC 2010; 12:655-8. [PMID: 20831264 DOI: 10.1021/cc100098v] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The parallel synthesis of O-aryloxyamines remains an unfulfilled need in the field of medicinal chemistry and fragment-based approaches. To fill this gap a solution-phase two-step process based on (1) a copper-catalyzed cross-coupling of aryl boronic acids with a fluorous tagged N-hydroxyphthalimide, and (2) a supported aminolysis was designed and optimized using Taguchi's method. A library of O-aryloxyamines was synthesized in high yields with high purity and diversity.
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Affiliation(s)
- Florence S Gaucher-Wieczorek
- Centre de recherches de Gif, Institut de Chimie des Substances Naturelles, UPR 2301-CNRS, Avenue de la Terrasse, 91198 Gif-sur-Yvette, France
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Szymanski W, Postema CP, Tarabiono C, Berthiol F, Campbell-Verduyn L, de Wildeman S, de Vries JG, Feringa BL, Janssen DB. Combining Designer Cells and Click Chemistry for a One-Pot Four-Step Preparation of Enantiopure β-Hydroxytriazoles. Adv Synth Catal 2010. [DOI: 10.1002/adsc.201000502] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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20
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Odell LR, Howan D, Gordon CP, Robertson MJ, Chau N, Mariana A, Whiting AE, Abagyan R, Daniel JA, Gorgani NN, Robinson PJ, McCluskey A. The pthaladyns: GTP competitive inhibitors of dynamin I and II GTPase derived from virtual screening. J Med Chem 2010; 53:5267-80. [PMID: 20575553 DOI: 10.1021/jm100442u] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
We report the development of a homology model for the GTP binding domain of human dynamin I based on the corresponding crystal structure of Dictyostelium discoidum dynamin A. Virtual screening identified 2-[(2-biphenyl-2-yl-1,3-dioxo-2,3-dihydro-1H-isoindole-5-carbonyl)amino]-4-chlorobenzoic acid (1) as a approximately 170 microM potent inhibitor. Homology modeling- and focused library-led synthesis resulted in development of a series of active compounds (the "pthaladyns") with 4-chloro-2-(2-(4-(hydroxymethyl)phenyl)-1,3-dioxoisoindoline-5-carboxamido)benzoic acid (29), a 4.58 +/- 0.06 microM dynamin I GTPase inhibitor. Pthaladyn-29 displays borderline selectivity for dynamin I relative to dynamin II ( approximately 5-10 fold). Only pthaladyn-23 (dynamin I IC(50) 17.4 +/- 5.8 microM) was an effective inhibitor of dynamin I mediated synaptic vesicle endocytosis in brain synaptosomes with an IC(50) of 12.9 +/- 5.9 microM. This compound was also competitive with respect to Mg(2+).GTP. Thus the pthaladyns are the first GTP competitive inhibitors of dynamin I and II GTPase and may be effective new tools for the study of neuronal endocytosis.
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Affiliation(s)
- Luke R Odell
- Chemistry, The University of Newcastle, University Drive, Callaghan, NSW 2308, Australia
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Campbell-Verduyn LS, Szymański W, Postema CP, Dierckx RA, Elsinga PH, Janssen DB, Feringa BL. One pot 'click' reactions: tandem enantioselective biocatalytic epoxide ring opening and [3+2] azide alkyne cycloaddition. Chem Commun (Camb) 2010; 46:898-900. [PMID: 20107643 DOI: 10.1039/b919434g] [Citation(s) in RCA: 92] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Halohydrin dehalogenase (HheC) can perform enantioselective azidolysis of aromatic epoxides to 1,2-azido alcohols which are subsequently ligated to alkynes producing chiral hydroxy triazoles in a one-pot procedure with excellent enantiomeric excess.
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Affiliation(s)
- Morten Meldal
- Carlsberg Laboratory, Gamle Carlsberg Vej 10, DK-2500 Valby, Denmark, and H. Lundbeck A/S, Ottiliavej 9, DK-2500 Valby, Denmark
| | - Christian Wenzel Tornøe
- Carlsberg Laboratory, Gamle Carlsberg Vej 10, DK-2500 Valby, Denmark, and H. Lundbeck A/S, Ottiliavej 9, DK-2500 Valby, Denmark
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Ankati H, Yang Y, Zhu D, Biehl ER, Hua L. Synthesis of Optically Pure 2-Azido-1-arylethanols with Isolated Enzymes and Conversion to Triazole-Containing β-Blocker Analogues Employing Click Chemistry. J Org Chem 2008; 73:6433-6. [DOI: 10.1021/jo8009616] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Haribabu Ankati
- Department of Chemistry, Southern Methodist University, Dallas, Texas 75275
| | - Yan Yang
- Department of Chemistry, Southern Methodist University, Dallas, Texas 75275
| | - Dunming Zhu
- Department of Chemistry, Southern Methodist University, Dallas, Texas 75275
| | - Edward R. Biehl
- Department of Chemistry, Southern Methodist University, Dallas, Texas 75275
| | - Ling Hua
- Department of Chemistry, Southern Methodist University, Dallas, Texas 75275
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25
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Zhou Y, Beeler AB, Cho S, Wang Y, Franzblau SG, Snyder JK. Library Synthesis Using 5,6,7,8-Tetrahydro-1,6-naphthyridines as Scaffolds. ACTA ACUST UNITED AC 2008; 10:534-40. [DOI: 10.1021/cc800038r] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Ya Zhou
- Department of Chemistry and the Center for Chemical Methodology and Library Development (CMLD-BU), Boston University, 590 Commonwealth Avenue, Boston, Massachusetts 02215, and Institute for Tuberculosis Research, College of Pharmacy, University of Illinois, 833 South Wood Street, MC964, Room 412, Chicago, Illinois 60612
| | - Aaron B. Beeler
- Department of Chemistry and the Center for Chemical Methodology and Library Development (CMLD-BU), Boston University, 590 Commonwealth Avenue, Boston, Massachusetts 02215, and Institute for Tuberculosis Research, College of Pharmacy, University of Illinois, 833 South Wood Street, MC964, Room 412, Chicago, Illinois 60612
| | - Sanghyun Cho
- Department of Chemistry and the Center for Chemical Methodology and Library Development (CMLD-BU), Boston University, 590 Commonwealth Avenue, Boston, Massachusetts 02215, and Institute for Tuberculosis Research, College of Pharmacy, University of Illinois, 833 South Wood Street, MC964, Room 412, Chicago, Illinois 60612
| | - Yuehong Wang
- Department of Chemistry and the Center for Chemical Methodology and Library Development (CMLD-BU), Boston University, 590 Commonwealth Avenue, Boston, Massachusetts 02215, and Institute for Tuberculosis Research, College of Pharmacy, University of Illinois, 833 South Wood Street, MC964, Room 412, Chicago, Illinois 60612
| | - Scott G. Franzblau
- Department of Chemistry and the Center for Chemical Methodology and Library Development (CMLD-BU), Boston University, 590 Commonwealth Avenue, Boston, Massachusetts 02215, and Institute for Tuberculosis Research, College of Pharmacy, University of Illinois, 833 South Wood Street, MC964, Room 412, Chicago, Illinois 60612
| | - John K. Snyder
- Department of Chemistry and the Center for Chemical Methodology and Library Development (CMLD-BU), Boston University, 590 Commonwealth Avenue, Boston, Massachusetts 02215, and Institute for Tuberculosis Research, College of Pharmacy, University of Illinois, 833 South Wood Street, MC964, Room 412, Chicago, Illinois 60612
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Bertrand P, Gesson JP. Click Chemistry withO-Dimethylpropargylcarbamate for Preparation of pH-Sensitive Functional Groups. A Case Study. J Org Chem 2007; 72:3596-9. [PMID: 17385923 DOI: 10.1021/jo070131j] [Citation(s) in RCA: 49] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Click chemistry has became an important tool for molecular constructs such as biopolymers. During the development of biodegradable multifunctional poly(ethylene oxide) (PEO) polymers suitable for click chemistry in water, an unexpected reaction leading to a mixture of triazole cycloadducts was observed. This result was attributed to an intramolecular ligand effect, and alternative conditions were evaluated. An efficient method was then implemented allowing the access in high yields to the expected triazolylcarbamate. pH sensitivity of the obtained isopropyltriazolylcarbamate was demonstrated at acidic pH.
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Affiliation(s)
- Philippe Bertrand
- Laboratoire Synthèse et Réactivité des Substances Naturelles, UMR CNRS 6514, 40 Avenue du Recteur Pineau, 86022 Poitiers Cedex, France.
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27
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Petersson MJ, Marchal C, Loughlin WA, Jenkins ID, Healy PC, Almesåker A. Unexpected regiospecific reactivity of a substituted phthalic anhydride. Tetrahedron 2007. [DOI: 10.1016/j.tet.2006.11.090] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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28
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Zhou Y, Porco JA, Snyder JK. Synthesis of 5,6,7,8-Tetrahydro-1,6-naphthyridines and Related Heterocycles by Cobalt-Catalyzed [2 + 2 + 2] Cyclizations. Org Lett 2007; 9:393-6. [PMID: 17249770 DOI: 10.1021/ol0625280] [Citation(s) in RCA: 100] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
[reaction: see text] Microwave-promoted, cobalt-catalyzed intramolecular [2 + 2 + 2] cyclizations of dialkynylnitriles successfully gave 5,6,7,8-tetrahydro-1,6-naphthyridines. The efficient synthesis of these relatively simple, yet rarely addressed heterocycles enabled the preparation of a collection of these compounds.
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Affiliation(s)
- Ya Zhou
- Department of Chemistry and the Center for Methodology and Library Development, Boston University, Boston, Massachusetts 02215, USA
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