1
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Roy A, Duari S, Maity S, Biswas S, Mishra AK, Biswas S. Regioselective Brønsted acid catalyzed ring opening of aziridines by phenols and thiophenols; a gateway to access functionalized indolines, indoles, benzothiazines, dihydrobenzo-thiazines, benzo-oxazines and benzochromenes. Org Biomol Chem 2024; 22:5653-5664. [PMID: 38919997 DOI: 10.1039/d4ob00196f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/27/2024]
Abstract
Brønsted acid catalyzed regioselective ring opening of aziridines by phenols and thiophenols have been reported. Involvement of a series of aziridines with a range of phenols and thiophenols offer the generality of the reported protocol. Completion of the reaction at room temperature within very short time brings the uniqueness of the developed technique. To emphasis on the application of the developed methodology, the products have been used for the further synthesis of a range of useful and novel heterocyclic molecules such as indolines, indoles, benzothiazines, dihydrobenzothiazines, benzo-oxazines and benzochromenes.
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Affiliation(s)
- Arnab Roy
- Department of Chemistry, University of Calcutta, 92, A. P. C. Road, Kolkata - 700 009, West Bengal, India.
| | - Surajit Duari
- Department of Chemistry, University of Calcutta, 92, A. P. C. Road, Kolkata - 700 009, West Bengal, India.
| | - Srabani Maity
- Department of Chemistry, University of Calcutta, 92, A. P. C. Road, Kolkata - 700 009, West Bengal, India.
| | - Subrata Biswas
- Department of Chemistry, University of Calcutta, 92, A. P. C. Road, Kolkata - 700 009, West Bengal, India.
| | - Abhishek Kumar Mishra
- Department of Medicinal and Process Chemistry, CSIR-Central Drug Research Institute, Lucknow - 226031, U. P., India
| | - Srijit Biswas
- Department of Chemistry, University of Calcutta, 92, A. P. C. Road, Kolkata - 700 009, West Bengal, India.
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2
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Peng H, Shahidi F. Metabolic, toxicological, chemical, and commercial perspectives on esterification of dietary polyphenols: a review. Crit Rev Food Sci Nutr 2024; 64:7465-7504. [PMID: 36908213 DOI: 10.1080/10408398.2023.2185589] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/14/2023]
Abstract
Molecular modifications have been practiced for more than a century and nowadays they are widely applied in food, pharmaceutical, or other industries to manipulate the physicochemical, bioactivity, metabolic/catabolic, and pharmacokinetic properties. Among various structural modifications, the esterification/O-acylation has been well-established in altering lipophilicity and bioactivity of parent bioactive compounds, especially natural polyphenolics, while maintaining their high biocompatibility. Meanwhile, various classic chemical and enzymatic protocols and other recently emerged cell factory technology are being employed as viable esterification strategies. In this contribution, the main motivations of phenolic esterification, including the tendency to replace synthetic alkyl phenolics with safer alternatives in the food industry to improve the bioavailability of phenolics as dietary supplements/pharmaceuticals, are discussed. In addition, the toxicity, metabolism, and commercial application of synthetic and natural phenolics are briefly introduced. Under these contexts, the mechanisms and reaction features of several most prevalent chemical and enzymatic esterification pathways are demonstrated. In addition, insights into the studies of esterification modification of natural phenolic compounds and specific pros/cons of various reaction systems with regard to their practical application are provided.
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Affiliation(s)
- Han Peng
- Department of Biochemistry, Memorial University of Newfoundland, St. John's, Newfoundland and Labrador, Canada
| | - Fereidoon Shahidi
- Department of Biochemistry, Memorial University of Newfoundland, St. John's, Newfoundland and Labrador, Canada
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3
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Nikseresht A, Mehravar R, Mohammadi M. RSM optimization of Friedel-Crafts C-acylation of para-fluorophenol over the catalysis of phosphomolybdic acid encapsulated in MIL-53 (Fe) metal organic frameworks. NANOSCALE ADVANCES 2024; 6:3158-3168. [PMID: 38868818 PMCID: PMC11166116 DOI: 10.1039/d3na01126g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/17/2023] [Accepted: 04/10/2024] [Indexed: 06/14/2024]
Abstract
In this research, a heterogeneous acid catalyst was synthesized by room temperature encapsulation of phosphomolybdic acid (PMA) in the pores of the MIL-53 (Fe) metal organic framework (MOF) under ultrasonic conditions. Then the catalytic activity of PMA@MIL-53 (Fe) was investigated in Friedel-Crafts C-acylation of para-fluorophenol, and this procedure was optimized using response surface methodology based on central composite design (RSM-CCD). The impact of critical reaction parameters including reaction duration, catalyst dosage, and PMA amount in the catalyst was optimized, leading to the formation of the target product in excellent yield at a short reaction time.
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Affiliation(s)
- Ahmad Nikseresht
- Department of Chemistry, Payame Noor University PO BOX 19395-4697 Tehran Iran
| | - Reza Mehravar
- Department of Chemistry, Payame Noor University PO BOX 19395-4697 Tehran Iran
| | - Masoud Mohammadi
- Department of Chemistry, Faculty of Science, Ilam University P.O. Box 69315516 Ilam Iran +98-918-8418754
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4
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Das KK, Aich D, Dey S, Panda S. One pot conversion of phenols and anilines to aldehydes and ketones exploiting α gem boryl carbanions. Nat Commun 2024; 15:3794. [PMID: 38714666 PMCID: PMC11076505 DOI: 10.1038/s41467-024-47156-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2023] [Accepted: 03/22/2024] [Indexed: 05/10/2024] Open
Abstract
Functional group interconversion is an important asset in organic synthesis. Phenols/anilines being naturally abundant and the carbonyl being the most common in a wide range of bioactive molecules, an efficient conversion is of prime interest. The reported methods require transition metal catalyzed cross coupling which limits its applicability. Here we have described a method for synthesizing various aldehydes and ketones, starting from phenol and protected anilines via Csp2-O/N bond cleavage in a one-pot/stepwise manner. Our synthetic method is found to be compatible with a diverse range of phenols and anilines carrying sensitive functional groups including halides, esters, ketal, hydroxyl, alkenes, and terminal alkynes as well as the substitution on the aryl cores. A short-step synthesis of bioactive molecules and their functionalization have been executed. Starting from BINOL, a photocatalyst has been designed. Here, we have developed a transition metal-free protocol for the conversion of phenols and anilines to aldehydes and ketones.
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Affiliation(s)
- Kanak Kanti Das
- Department of Chemistry, Indian Institute of Technology Kharagpur, Kharagpur, 721302, India
| | - Debasis Aich
- Department of Chemistry, Indian Institute of Technology Kharagpur, Kharagpur, 721302, India
| | - Sutapa Dey
- School of Energy Science & Engineering, Indian Institute of Technology Kharagpur, Kharagpur, 721302, India
| | - Santanu Panda
- Department of Chemistry, Indian Institute of Technology Kharagpur, Kharagpur, 721302, India.
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5
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Lu CH, Chang C, Huang YC, You JX, Liang M. Synthesis and Characterization of DOPO-Containing Poly(2,6-dimethyl-1,4-phenylene oxide)s by Oxidative Coupling Polymerization. Polymers (Basel) 2024; 16:303. [PMID: 38276710 PMCID: PMC10818327 DOI: 10.3390/polym16020303] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2023] [Revised: 01/12/2024] [Accepted: 01/12/2024] [Indexed: 01/27/2024] Open
Abstract
A set of polyphenylene oxides incorporating DOPO (9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide) functionality, denoted as DOPO-R-PPO, was synthesized by copolymerization of 2,6-dimethylphenol (2,6-DMP) with various DOPO-substituted tetramethyl bisphenol monomers. In the initial step, a Friedel-Crafts acylation reaction was employed to react 2,6-DMP with different acyl chlorides, leading to the formation of ketone derivatives substituted with 2,6-dimethylphenyl groups. Subsequently, the ketones, along with DOPO and 2,6-DMP, underwent a condensation reaction to yield a series of DOPO-substituted bisphenol derivatives. Finally, polymerizations of 2,6-dimethylphenol with these DOPO-substituted bisphenols were carried out in organic solvents using copper(I) bromide/N-butyldimethylamine catalysts (CuBr/DMBA) under a continuous flow of oxygen, yielding telechelic PPO oligomers with DOPO moieties incorporated into the polymer backbone. The chemical structures of the synthesized compounds were characterized using various analytical techniques, including Fourier transform infrared spectroscopy (FTIR), proton nuclear magnetic resonance (1H NMR), phosphorus nuclear magnetic resonance (31P NMR), differential scanning calorimetry (DSC), and thermogravimetric analysis (TGA). When compared to conventional poly(2,6-dimethyl-1,4-phenylene oxide)s with a similar molecular weight range, all DOPO-PPOs exhibited higher glass transition temperatures, enhanced thermal degradability, and increased char yield formation at 800 °C without compromising solubility in organic solvents.
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Affiliation(s)
| | | | | | | | - Mong Liang
- Department of Applied Chemistry, National Chia-Yi University, Chia-Yi 600, Taiwan; (C.-H.L.); (C.C.); (Y.-C.H.); (J.-X.Y.)
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6
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van Wilderen LJGW, Kern-Michler D, Neumann C, Reinfelds M, von Cosel J, Horz M, Burghardt I, Heckel A, Bredenbeck J. Choose your leaving group: selective photodeprotection in a mixture of pHP-caged compounds by VIPER excitation. Chem Sci 2023; 14:2624-2630. [PMID: 36908963 PMCID: PMC9993852 DOI: 10.1039/d2sc06259c] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2022] [Accepted: 02/07/2023] [Indexed: 02/11/2023] Open
Abstract
Photocages are light-triggerable molecular moieties that can locally release a pre-determined leaving group (LG). Finding a suitable photocage for a particular application may be challenging, as the choice may be limited by for instance the optical or physicochemical properties of the system. Using more than one photocage to release different LGs in a reaction mixture may even be more difficult. In this work an experimental strategy is presented that allows us to hand-pick the release of different LGs, and to do so in any order. This is achieved by using isotopologue photocage-LG mixtures in combination with ultrafast VIbrationally Promoted Electronic Resonance (VIPER) excitation. The latter provides the required molecular selectivity simply by tuning the wavenumber of the used IR pulses to the resonance of a specific photocage isotopologue, as is demonstrated here for the para-hydroxyphenacyl (pHP) photocage. For spectroscopic convenience, we use isotopologues of the infrared (IR) spectroscopic marker -SCN as different LGs. Especially for applications where fast LG release is required, pHP is found to be an excellent candidate, as free LG formation is observed to occur with a 10 ps lifetime. The devised strategy may open up new complex uncaging applications, where multiple LGs can be formed locally on a short time scale and in any sequence.
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Affiliation(s)
- Luuk J G W van Wilderen
- Johann Wolfgang Goethe-University, Institute of Biophysics Max-von-Laue-Str. 1 60438 Frankfurt am Main Germany
| | - Daniela Kern-Michler
- Johann Wolfgang Goethe-University, Institute of Biophysics Max-von-Laue-Str. 1 60438 Frankfurt am Main Germany
| | - Carsten Neumann
- Johann Wolfgang Goethe-University, Institute of Biophysics Max-von-Laue-Str. 1 60438 Frankfurt am Main Germany
| | - Matiss Reinfelds
- Johann Wolfgang Goethe-University, Institute of Organic Chemistry and Chemical Biology Max-von-Laue-Str. 7 60438 Frankfurt am Main Germany
| | - Jan von Cosel
- Johann Wolfgang Goethe-University, Institute of Physical and Theoretical Chemistry Max-von-Laue-Str. 7 60438 Frankfurt am Main Germany
| | - Maximiliane Horz
- Johann Wolfgang Goethe-University, Institute of Physical and Theoretical Chemistry Max-von-Laue-Str. 7 60438 Frankfurt am Main Germany
| | - Irene Burghardt
- Johann Wolfgang Goethe-University, Institute of Physical and Theoretical Chemistry Max-von-Laue-Str. 7 60438 Frankfurt am Main Germany
| | - Alexander Heckel
- Johann Wolfgang Goethe-University, Institute of Organic Chemistry and Chemical Biology Max-von-Laue-Str. 7 60438 Frankfurt am Main Germany
| | - Jens Bredenbeck
- Johann Wolfgang Goethe-University, Institute of Biophysics Max-von-Laue-Str. 1 60438 Frankfurt am Main Germany
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7
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Murphy RB, Staton J, Rawal A, Darwish TA. The effect of deuteration on the keto-enol equilibrium and photostability of the sunscreen agent avobenzone. Photochem Photobiol Sci 2020; 19:1410-1422. [PMID: 32966538 DOI: 10.1039/d0pp00265h] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The remarkable properties of deuterium have led to many exciting and favourable results in enhancing material properties, for applications in the physical, medical, and biological sciences. Deuterated isotopologues of avobenzone, a sunscreen active ingredient, were synthesised to examine for any changes to the equilibrium between the diketone and enol isomers, as well as their UV photostability and photoprotective properties. Prior to UV irradiation, deuteration of the diketone methylene/enol moiety (i.e. avobenzone-d2) led to an increase in the % diketone compared to non-deuterated, determined by 1H NMR experiments in CDCl3 and C6D12. This can be rationalised from two angles; mechanistically by a deuterium kinetic isotope effect for the CH vs. CD abstraction step during tautomerisation from the diketone to the enol, and a weaker chelating hydrogen bond for the enol when deuterated allowing increased equilibration to the diketone. Avobenzone-d2 was further examined by solid state 13C NMR. The higher % diketone for avobenzone-d2 was postulated to favour increased photodegradation by a non-reversible pathway. This was investigated by UV irradiation of the avobenzone isotopologues in C6D12, both in real time in situ within the NMR by fibre optic cable as well as ex situ using sunlight. An increase in the relative amount of photoproducts for avobenzone-d2 compared to non-deuterated was observed by 1H NMR upon UV irradiation ex situ. Overall, the study demonstrates that deuteration can be applied to alter complex equilibria, and has potential to be manifested as changes to the properties and behaviour of materials.
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Affiliation(s)
- Rhys B Murphy
- Australian Nuclear Science and Technology Organisation, Locked Bag 2001, Kirrawee DC, NSW 2232, Australia.
| | - John Staton
- Eurofins Dermatest, 20 King Street, Rockdale, New South Wales 2216, Australia
| | - Aditya Rawal
- Nuclear Magnetic Resonance Facility, Mark Wainwright Analytical Centre, University of New South Wales, Sydney, Australia
| | - Tamim A Darwish
- Australian Nuclear Science and Technology Organisation, Locked Bag 2001, Kirrawee DC, NSW 2232, Australia.
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8
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Castro H, Cruz T, de Aguiar Amaral P, da Silva Cardoso P, Alsaffar A, Farrell P, Tomás AM, Barlow JW. Synthesis and evaluation of novel chromanone and quinolinone analogues of uniflorol as anti-leishmanial agents. Heliyon 2020; 6:e03614. [PMID: 32258470 PMCID: PMC7096758 DOI: 10.1016/j.heliyon.2020.e03614] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2019] [Revised: 01/10/2020] [Accepted: 03/13/2020] [Indexed: 01/22/2023] Open
Abstract
Within this work, we describe the design and synthesis of a range of novel chromanones and quinolinones, based on natural products reported to possess anti-leishmanial action. The core heterocycles were obtained either via classical or ionic liquid mediated Kabbe condensation in the case of chromanones, or aqueous Sonogashira based alkynylation followed by acid-catalysed cyclisation in the case of quinolinones. Upon testing in promastigotes, axenic amastigotes and Leishmania-infected macrophages, compound 13c was identified as displaying interesting activity, inhibiting axenic amastigotes and intracellular amastigotes with IC50s of 25.3 and 24.6μM respectively.
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Affiliation(s)
- Helena Castro
- i3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Rua Alfredo Allen 208, 4200-135 Porto, Portugal.,IBMC - Instituto de Biologia Molecular e Celular, Universidade do Porto, Rua Alfredo Allen, 208, 4200-135 Porto, Portugal
| | - Tânia Cruz
- i3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Rua Alfredo Allen 208, 4200-135 Porto, Portugal.,IBMC - Instituto de Biologia Molecular e Celular, Universidade do Porto, Rua Alfredo Allen, 208, 4200-135 Porto, Portugal
| | - Patrícia de Aguiar Amaral
- Laboratory of Medicinal Plants (LaPlaM/ PPGCA), Universidade do Extremo Sul Catarinense (UNESC), Avenida Universitária 1105, Bairro Universitário, 88806-000 Criciúma, SC, Brazil
| | - Paula da Silva Cardoso
- Laboratory of Medicinal Plants (LaPlaM/ PPGCA), Universidade do Extremo Sul Catarinense (UNESC), Avenida Universitária 1105, Bairro Universitário, 88806-000 Criciúma, SC, Brazil.,Department of Chemistry, RCSI, 123 St. Stephen's Green, Dublin 2, Ireland
| | - Ahmed Alsaffar
- Department of Chemistry, RCSI, 123 St. Stephen's Green, Dublin 2, Ireland
| | - Patrick Farrell
- Department of Chemistry, RCSI, 123 St. Stephen's Green, Dublin 2, Ireland
| | - Ana M Tomás
- i3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Rua Alfredo Allen 208, 4200-135 Porto, Portugal.,IBMC - Instituto de Biologia Molecular e Celular, Universidade do Porto, Rua Alfredo Allen, 208, 4200-135 Porto, Portugal.,ICBAS - Instituto de Ciências Biomédicas Abel Salazar, Universidade do Porto, Rua de Jorge Viterbo Ferreira 228, 4050-313 Porto, Portugal
| | - James W Barlow
- Department of Chemistry, RCSI, 123 St. Stephen's Green, Dublin 2, Ireland
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9
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Zakharov AV, Yadykov AV, Lvov AG, Mitina EA, Shirinian VZ. Photochemical rearrangement of diarylethenes: synthesis of functionalized phenanthrenes. Org Biomol Chem 2020; 18:3098-3103. [PMID: 32253418 DOI: 10.1039/d0ob00296h] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
A novel protocol for the synthesis of functionalized phenanthrenes through photocyclization of diarylethenes (DAE) under UV irradiation is proposed. The reaction proceeds through 6π-electrocyclization with the formation of a cyclic (closed) intermediate that undergoes a rearrangement affording unsymmetrical phenanthrenes in good yields. However, in contrast to benzene derivatives, the photocyclization of naphthalene diarylethenes proceeds more slowly, which is confirmed by DFT calculations. The transformation was performed on a 1 mmol scale. The scalability showed that the diarylethenes bearing oxazole, thiazole, pyrazole and imidazole as aryl moieties are more prone to photorearrangement and can be used in preparative organic synthesis.
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Affiliation(s)
- A V Zakharov
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 47 Leninsky prosp., 119991 Moscow, Russia.
| | - A V Yadykov
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 47 Leninsky prosp., 119991 Moscow, Russia.
| | - A G Lvov
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 47 Leninsky prosp., 119991 Moscow, Russia.
| | - E A Mitina
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 47 Leninsky prosp., 119991 Moscow, Russia.
| | - V Z Shirinian
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 47 Leninsky prosp., 119991 Moscow, Russia.
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10
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Lima DB, Santos PHV, Fiori P, Badshah G, Luz EQ, Seckler D, Rampon DS. Base‐Promoted Direct Chalcogenylation of 2‐Naphthols. ChemistrySelect 2019. [DOI: 10.1002/slct.201903251] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Affiliation(s)
- David B. Lima
- Laboratory of Polymers and Molecular Catalysis (LAPOCA)Department of ChemistryFederal University of Paraná-UFPR P. O. Box 19032 Curitiba, PR,81531-990 Brazil
| | - Pedro H. V. Santos
- Laboratory of Polymers and Molecular Catalysis (LAPOCA)Department of ChemistryFederal University of Paraná-UFPR P. O. Box 19032 Curitiba, PR,81531-990 Brazil
| | - Priscila Fiori
- Laboratory of Polymers and Molecular Catalysis (LAPOCA)Department of ChemistryFederal University of Paraná-UFPR P. O. Box 19032 Curitiba, PR,81531-990 Brazil
| | - Gul Badshah
- Laboratory of Polymers and Molecular Catalysis (LAPOCA)Department of ChemistryFederal University of Paraná-UFPR P. O. Box 19032 Curitiba, PR,81531-990 Brazil
| | - Eduardo Q. Luz
- Laboratory of Polymers and Molecular Catalysis (LAPOCA)Department of ChemistryFederal University of Paraná-UFPR P. O. Box 19032 Curitiba, PR,81531-990 Brazil
| | - Diego Seckler
- Laboratory of Polymers and Molecular Catalysis (LAPOCA)Department of ChemistryFederal University of Paraná-UFPR P. O. Box 19032 Curitiba, PR,81531-990 Brazil
| | - Daniel S. Rampon
- Laboratory of Polymers and Molecular Catalysis (LAPOCA)Department of ChemistryFederal University of Paraná-UFPR P. O. Box 19032 Curitiba, PR,81531-990 Brazil
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11
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Milišiūnaitė V, Kadlecová A, Žukauskaitė A, Doležal K, Strnad M, Voller J, Arbačiauskienė E, Holzer W, Šačkus A. Synthesis and anthelmintic activity of benzopyrano[2,3-c]pyrazol-4(2H)-one derivatives. Mol Divers 2019; 24:1025-1042. [DOI: 10.1007/s11030-019-10010-3] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2019] [Accepted: 10/21/2019] [Indexed: 12/18/2022]
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12
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Muto T, Iida K, Noguchi K, Yonezawa N, Okamoto A. Crystal structure and Hirshfeld surface analysis of 2-hy-droxy-7-meth-oxy-1,8-bis-(2,4,6-tri-chloro-benzo-yl)naphthalene. Acta Crystallogr E Crystallogr Commun 2019; 75:1418-1422. [PMID: 31636968 PMCID: PMC6775736 DOI: 10.1107/s2056989019012118] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2019] [Accepted: 09/02/2019] [Indexed: 12/02/2022]
Abstract
In the title compound, C25H12Cl6O4, the two carbonyl groups are oriented in a same direction with respect to the naphthalene ring system and are situated roughly parallel to each other, while the two 2,4,6-tri-chloro-benzene rings are orientated in opposite directions with respect to the naphthalene ring system: the carbonyl C-(C=O)-C planes subtend dihedral angles of 45.54 (15) and 30.02 (15)° to the naphthalene ring system are. The dihedral angles formed by the carbonyl groups and the benzene rings show larger differences, the C=O vectors being inclined to the benzene rings by 46.39 (16) and 79.78 (16)°. An intra-molecular O-H⋯O=C hydrogen bond forms an S(6) ring motif. In the crystal, no effective inter-molecular hydrogen bonds are found; instead, O⋯Cl and C⋯Cl close contacts are observed along the 21 helical-axis direction. The Hirshfeld surface analysis reveals several weak interactions, the major contributor being Cl⋯H/H⋯Cl contacts.
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Affiliation(s)
- Toyokazu Muto
- Department of Organic and Polymer Materials Chemistry, Tokyo University of Agriculture and Technology, Koganei, Tokyo 184-8588, Japan
| | - Kikuko Iida
- Department of Organic and Polymer Materials Chemistry, Tokyo University of Agriculture and Technology, Koganei, Tokyo 184-8588, Japan
| | - Keiichi Noguchi
- Instrumentation Analysis Center, Tokyo University of Agriculture and Technology, Koganei, Tokyo 184-8588, Japan
| | - Noriyuki Yonezawa
- Department of Organic and Polymer Materials Chemistry, Tokyo University of Agriculture and Technology, Koganei, Tokyo 184-8588, Japan
| | - Akiko Okamoto
- Department of Organic and Polymer Materials Chemistry, Tokyo University of Agriculture and Technology, Koganei, Tokyo 184-8588, Japan
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13
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Sultan S, Bhat MUS, Rizvi MA, Shah BA. Visible Light-Mediated [2 + 2] Cycloaddition Reactions of 1,4-Quinones and Terminal Alkynes. J Org Chem 2019; 84:8948-8958. [PMID: 31251064 DOI: 10.1021/acs.joc.9b00855] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A single-step synthesis of 4-hydroxy-functionalized bi-aryl and aryl/alkyl ketones via oxidative coupling of terminal alkynes with benzoquinones is reported. Furthermore, with naphthoquinones, owing to the cross-resonance of carbonyl with the aromatic ring, alkene-alkyne cycloaddition is more favored to give four-membered carbocyclic adducts, thereby precluding the requirement of preactivated alkynes.
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Affiliation(s)
- Shaista Sultan
- AcSIR and Natural Product Microbes , CSIR-Indian Institute of Integrative Medicine , Jammu 180001 , India
| | - Muneer-Ul-Shafi Bhat
- AcSIR and Natural Product Microbes , CSIR-Indian Institute of Integrative Medicine , Jammu 180001 , India
| | - Masood Ahmad Rizvi
- Department of Chemistry , University of Kashmir , Srinagar 190006 , India
| | - Bhahwal Ali Shah
- AcSIR and Natural Product Microbes , CSIR-Indian Institute of Integrative Medicine , Jammu 180001 , India
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14
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Xu X, Feng H, Li H, Huang L. Enol Ester Intermediate Induced Metal-Free Oxidative Coupling of Carboxylic Acids and Arylboronic Acids. European J Org Chem 2019. [DOI: 10.1002/ejoc.201900137] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Xianjun Xu
- College of Chemistry and Chemical Engineering; Shanghai University of Engineering Science; 333 Longteng Road 201620 Shanghai China
| | - Huangdi Feng
- College of Chemistry and Chemical Engineering; Shanghai University of Engineering Science; 333 Longteng Road 201620 Shanghai China
| | - Huiqiong Li
- College of Chemistry and Chemical Engineering; Shanghai University of Engineering Science; 333 Longteng Road 201620 Shanghai China
| | - Liliang Huang
- College of Chemistry and Chemical Engineering; Shanghai University of Engineering Science; 333 Longteng Road 201620 Shanghai China
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15
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Wang A, Li P, Han P, Gu G, Shan T, Lai D, Zhou L. New nitrogen-containing metabolites from cultures of rice false smut pathogen Villosiclava virens. Nat Prod Res 2019; 35:272-281. [PMID: 31180238 DOI: 10.1080/14786419.2019.1627354] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
Two new nitrogen-containing metabolites methyl N-acetyl-O-(4-acetylphenyl)-L-homoserinate (1), dimethyl (1H-indole-3-carbonyl)-D-glutamate (2), and two new natural products, 1,2-O-isopropylidene-D-mannitol (3), N-acetyl-β-methyl-L-phenylalanine (4), along with five known compounds (5-9) were isolated from the rice false smut pathogen Villosiclava virens UV-8b cultured in the solid rice medium. The structures were elucidated by spectroscopic analysis and by comparison of their physical and spectroscopic data with the literature. These metabolites were evaluated for their antibacterial and phytotoxic activities. Compounds 5-7 showed weak inhibition against the tested bacteria, while compounds 4-6 and 9 displayed inhibitory activity against the radicle elongation of rice seeds.
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Affiliation(s)
- Ali Wang
- Department of Plant Pathology, College of Plant Protection, China Agricultural University, Beijing, China
| | - Peng Li
- Department of Plant Pathology, College of Plant Protection, China Agricultural University, Beijing, China
| | - Peipei Han
- Department of Plant Pathology, College of Plant Protection, China Agricultural University, Beijing, China
| | - Gan Gu
- Department of Plant Pathology, College of Plant Protection, China Agricultural University, Beijing, China
| | - Tijiang Shan
- Department of Plant Pathology, College of Plant Protection, China Agricultural University, Beijing, China
| | - Daowan Lai
- Department of Plant Pathology, College of Plant Protection, China Agricultural University, Beijing, China
| | - Ligang Zhou
- Department of Plant Pathology, College of Plant Protection, China Agricultural University, Beijing, China
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16
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Kinney RG, Arndtsen BA. Decarboxylation with Carbon Monoxide: The Direct Conversion of Carboxylic Acids into Potent Acid Triflate Electrophiles. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201814660] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- R. Garrison Kinney
- Department of ChemistryMcGill University 801 Sherbrooke Street West Montreal QC H3A 0B8 Canada
| | - Bruce A. Arndtsen
- Department of ChemistryMcGill University 801 Sherbrooke Street West Montreal QC H3A 0B8 Canada
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17
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Kinney RG, Arndtsen BA. Decarboxylation with Carbon Monoxide: The Direct Conversion of Carboxylic Acids into Potent Acid Triflate Electrophiles. Angew Chem Int Ed Engl 2019; 58:5085-5089. [PMID: 30776306 DOI: 10.1002/anie.201814660] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2018] [Revised: 02/13/2019] [Indexed: 01/07/2023]
Abstract
We report a new strategy for the conversion of carboxylic acids into potent acid triflate electrophiles. The reaction involves oxidative carbonylation of carboxylic acids with I2 in the presence of AgOTf, and is postulated to proceed via acyl hypoiodites that react with CO to form acid triflates. Coupling this chemistry with subsequent trapping with arenes offers a mild, room temperature approach to generate ketones directly from broadly available carboxylic acids without the use of corrosive and reactive Lewis or Bronsted acid additives, and instead from compounds that are readily available, stable, and functional group compatible.
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Affiliation(s)
- R Garrison Kinney
- Department of Chemistry, McGill University, 801 Sherbrooke Street West, Montreal, QC, H3A 0B8, Canada
| | - Bruce A Arndtsen
- Department of Chemistry, McGill University, 801 Sherbrooke Street West, Montreal, QC, H3A 0B8, Canada
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18
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Du F, Zhou Q, Shi Y, Yu M, Sun W, Chen G. A new pathway via intermediate 4-amino-3-fluorophenol for the synthesis of regorafenib. SYNTHETIC COMMUN 2019. [DOI: 10.1080/00397911.2018.1564832] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Fangyu Du
- Key Laboratory of Structure-Based Drugs Design and Discovery of Ministry of Education, Shenyang Pharmaceutical University , Shenyang , P. R. China
| | - Qifan Zhou
- Key Laboratory of Structure-Based Drugs Design and Discovery of Ministry of Education, Shenyang Pharmaceutical University , Shenyang , P. R. China
| | - Yajie Shi
- Key Laboratory of Structure-Based Drugs Design and Discovery of Ministry of Education, Shenyang Pharmaceutical University , Shenyang , P. R. China
| | - Miao Yu
- Key Laboratory of Structure-Based Drugs Design and Discovery of Ministry of Education, Shenyang Pharmaceutical University , Shenyang , P. R. China
| | - Wenjiao Sun
- Key Laboratory of Structure-Based Drugs Design and Discovery of Ministry of Education, Shenyang Pharmaceutical University , Shenyang , P. R. China
| | - Guoliang Chen
- Key Laboratory of Structure-Based Drugs Design and Discovery of Ministry of Education, Shenyang Pharmaceutical University , Shenyang , P. R. China
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19
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Gaikwad VV, Bhanage BM. Oxime palladacycle in PEG as a highly efficient and recyclable catalytic system for phenoxycarbonylation of aryl iodides with phenols. Appl Organomet Chem 2019. [DOI: 10.1002/aoc.4741] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Vinayak V. Gaikwad
- Department of Chemistry; Institute of Chemical Technology; N. Parekh Marg, Matunga Mumbai 400 019 Maharashtra India
| | - Bhalchandra M. Bhanage
- Department of Chemistry; Institute of Chemical Technology; N. Parekh Marg, Matunga Mumbai 400 019 Maharashtra India
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20
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Żądło‐Dobrowolska A, Schmidt NG, Kroutil W. Thioesters as Acyl Donors in Biocatalytic Friedel-Crafts-type Acylation Catalyzed by Acyltransferase from Pseudomonas Protegens. ChemCatChem 2019; 11:1064-1068. [PMID: 31423289 PMCID: PMC6686624 DOI: 10.1002/cctc.201801856] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2018] [Revised: 12/05/2018] [Indexed: 11/06/2022]
Abstract
Functionalization of aromatic compounds by acylation has considerable significance in synthetic organic chemistry. As an alternative to chemical Friedel-Crafts acylation, the C-acyltransferase from Pseudomonas protegens has been found to catalyze C-C bond formation with non-natural resorcinol substrates. Extending the scope of acyl donors, it is now shown that the enzyme is also able to catalyze C-S bond cleavage prior to C-C bond formation, thus aliphatic and aromatic thioesters can be used as acyl donors. It is worth to mention that this reaction can be performed in aqueous buffer. Identifying ethyl thioacetate as the most suitable acetyl donor, the products were obtained with up to >99 % conversion and up to 88 % isolated yield without using additional base additives; this represents a significant advancement to prior protocols.
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Affiliation(s)
| | - Nina G. Schmidt
- Institute of ChemistryUniversity of GrazNAWI Graz, BioTechMed GrazGraz8010Austria
- ACIB GmbHGraz8010Austria
| | - Wolfgang Kroutil
- Institute of ChemistryUniversity of GrazNAWI Graz, BioTechMed GrazGraz8010Austria
- ACIB GmbHGraz8010Austria
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21
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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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22
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Hashimoto M, Puteri Tachrim Z, Nakagawa S, Nakamura T, Ohashi F, Kurokawa N, Wakasa H, Tokoro Y, Sakihama Y, Hashidoko Y, Suzuki T. Synthesis of Deuterated CycloDOPA with Hydrogen/Deuterium Exchange. HETEROCYCLES 2019. [DOI: 10.3987/com-18-s(f)33] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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23
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Das M, Bhattacharjee S, Fronczek FR, Bazan NG, Trudell ML. Synthesis, hepatotoxic evaluation and antipyretic activity of nitrate ester analogs of the acetaminophen derivative SCP-1. Bioorg Med Chem Lett 2018; 28:3798-3801. [PMID: 30327145 DOI: 10.1016/j.bmcl.2018.09.020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2018] [Revised: 09/10/2018] [Accepted: 09/15/2018] [Indexed: 11/25/2022]
Abstract
A series of nitrate ester analogues of the acetaminophen derivative SCP-1 were prepared by triflic acid catalyzed O-acylation of SCP-1 with chloroalkanoyl chlorides followed by nitration with silver nitrate. The chloroesters and corresponding nitrate esters were obtained in high yields. Preliminary hepatotoxicity studies revealed nitrate esters 5b (MD-38) and 5c (MD-39) to be well tolerated by human hepatocytes and had little effect on the three cytochrome P450 enzymes tested (CYP3A4, CYP2E1 and CYP2D6). In addition, the nitrate ester 5c (MD-39) exhibited antipyretic activity similar to acetaminophen.
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Affiliation(s)
- Madhurima Das
- Department of Chemistry, University of New Orleans, New Orleans, LA 71048 USA
| | - Surjyadipta Bhattacharjee
- Neuroscience Center of Excellence, Louisiana State University Health Science Center, New Orleans, LA 70112, USA
| | - Frank R Fronczek
- Department of Chemistry, Louisiana State University, Baton Rouge, LA 70803, USA
| | - Nicolas G Bazan
- Neuroscience Center of Excellence, Louisiana State University Health Science Center, New Orleans, LA 70112, USA
| | - Mark L Trudell
- Department of Chemistry, University of New Orleans, New Orleans, LA 71048 USA.
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24
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Arcadia CE, Tann H, Dombroski A, Ferguson K, Chen SL, Kim E, Rose C, Rubenstein BM, Reda S, Rosenstein JK. Parallelized Linear Classification with Volumetric Chemical Perceptrons. 2018 IEEE INTERNATIONAL CONFERENCE ON REBOOTING COMPUTING (ICRC) 2018. [DOI: 10.1109/icrc.2018.8638627] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/01/2023]
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25
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Geng K, Xia Z, Ji Y, Zhang R(R, Sun D, Ai J, Song Z, Geng M, Zhang A. Discovery of 2,4-diarylaminopyrimidines bearing a resorcinol motif as novel ALK inhibitors to overcome the G1202R resistant mutation. Eur J Med Chem 2018; 144:386-397. [DOI: 10.1016/j.ejmech.2017.12.060] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2017] [Revised: 12/15/2017] [Accepted: 12/16/2017] [Indexed: 11/28/2022]
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26
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Llopis Q, Guillamot G, Phansavath P, Ratovelomanana-Vidal V. Enantioselective Synthesis of α-Acetal-β'-Amino Ketone Derivatives by Rhodium-Catalyzed Asymmetric Hydrogenation. Org Lett 2017; 19:6428-6431. [PMID: 29152979 DOI: 10.1021/acs.orglett.7b03332] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A range of β-keto-γ-acetal enamides has been synthesized and transformed into the corresponding enantioenriched α-acetal-β'-amino ketones with enantioinductions of up to 99% by using rhodium/QuinoxP*-catalyzed enantioselective hydrogenation under mild conditions. This method also proved to be highly chemoselective toward the reduction of the C-C double bond.
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Affiliation(s)
- Quentin Llopis
- PSL Research University, Chimie ParisTech-CNRS, Institut de Recherche de Chimie Paris , 11 rue Pierre et Marie Curie, 75005 Paris, France.,PCAS , 2-8 rue de Rouen, ZI de Limay-Porcheville, 78440 Porcheville, France
| | - Gérard Guillamot
- PCAS , 2-8 rue de Rouen, ZI de Limay-Porcheville, 78440 Porcheville, France
| | - Phannarath Phansavath
- PSL Research University, Chimie ParisTech-CNRS, Institut de Recherche de Chimie Paris , 11 rue Pierre et Marie Curie, 75005 Paris, France
| | - Virginie Ratovelomanana-Vidal
- PSL Research University, Chimie ParisTech-CNRS, Institut de Recherche de Chimie Paris , 11 rue Pierre et Marie Curie, 75005 Paris, France
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27
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Nickmans K, Leclère P, Lub J, Broer DJ, Schenning APHJ. Reactive oligo(dimethylsiloxane) mesogens and their nanostructured thin films. SOFT MATTER 2017; 13:4357-4362. [PMID: 28504794 DOI: 10.1039/c7sm00673j] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Oligo(dimethylsiloxane)-based reactive mesogens were prepared and shown to form room-temperature smectic phases which were 'frozen-in' by photopolymerization. Homeotropically aligned, nanostructured thin films were obtained by spincoating, and micropatterning was demonstrated. These hybrid reactive mesogens are suitable for the preparation of aligned nanostructured polymer thin films with potential applications ranging from stimuli responsive coatings to nanoporous membranes.
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Affiliation(s)
- K Nickmans
- Laboratory of Functional Organic Materials and Devices, Department of Chemical Engineering and Chemistry, Eindhoven University of Technology, P.O. Box 513, 5600 MB, Eindhoven, The Netherlands.
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28
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Kazakova AN, Vasilyev AV. Trifluoromethanesulfonic acid in organic synthesis. RUSSIAN JOURNAL OF ORGANIC CHEMISTRY 2017. [DOI: 10.1134/s1070428017040017] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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29
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Trifluoromethanesulfonic Acid as Acylation Catalyst: Special Feature for C- and/or O-Acylation Reactions. Catalysts 2017. [DOI: 10.3390/catal7020040] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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30
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Venkanna A, Goud PVK, Prasad PV, Shanker M, Rao PV. One-Step Synthesis of Xanthones and Thio-Xanthones by Using Magnetically Separable Copper ferrite Nanoparticles as a Catalyst under Ligand Free Conditions. ChemistrySelect 2016. [DOI: 10.1002/slct.201600170] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Avudoddi Venkanna
- Department of Chemistry; Osmania University; Tarnaka Hyderabad Telangana State India 500007
| | - Palle Vinod Kumar Goud
- Department of Chemistry; Osmania University; Tarnaka Hyderabad Telangana State India 500007
| | | | - Medi Shanker
- Department of Chemistry; Osmania University; Tarnaka Hyderabad Telangana State India 500007
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31
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Do Q, Nguyen GT, Phillips RS. Inhibition of tyrosine phenol-lyase by tyrosine homologues. Amino Acids 2016; 48:2243-51. [DOI: 10.1007/s00726-016-2263-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2015] [Accepted: 05/20/2016] [Indexed: 11/28/2022]
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32
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Cao Y, Deng D, Sun A, Zhang Y, Hu Y. Functional Characterization of a Novel Marine Microbial Esterase and its Utilization in the Enantioselective Preparation of (R)-Methyl 2-Chloropropionate. Appl Biochem Biotechnol 2016; 180:210-27. [PMID: 27118550 DOI: 10.1007/s12010-016-2094-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2016] [Accepted: 04/20/2016] [Indexed: 11/30/2022]
Abstract
Chiral 2-chloropropanoic acids and their ester derivatives are crucial intermediates in the synthesis of many chemicals, especially herbicides. The enzymatic synthesis of chiral 2-chloropropanoic acids and their ester derivatives by esterases was not easily achieved, because the structural difference between the two enantiomers was too small to be recognized by esterases. Herein, we report the expression and functional characterization of one novel low temperature-resistant esterase EST12-7 identified from the genome of Pseudonocardia antitumoralis SCSIO 01299 isolated from the sediments of the South China Sea. Biocatalyst EST12-7 could hydrolyze racemic methyl 2-chloropropinate and generate optically pure (R)-methyl 2-chloropropinate with high enantiomeric excess (>99 %) and conversion (>49 %) after process optimization. Notably, the addition of different surfactants and using surfactants of different concentrations in the kinetic resolution catalyzed by EST12-7 could greatly affect the enantiomeric excess and conversion rate of product (R)-methyl 2-chloropropinate.
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Affiliation(s)
- Yingying Cao
- Key Laboratory of Tropical Marine Bio-resources and Ecology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, 510301, People's Republic of China
- University of Chinese Academy of Sciences, Beijing, 100049, People's Republic of China
- Guangdong Key Laboratory of Marine Materia Medica, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, 510301, People's Republic of China
| | - Dun Deng
- Key Laboratory of Tropical Marine Bio-resources and Ecology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, 510301, People's Republic of China
- University of Chinese Academy of Sciences, Beijing, 100049, People's Republic of China
- Guangdong Key Laboratory of Marine Materia Medica, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, 510301, People's Republic of China
| | - Aijun Sun
- Key Laboratory of Tropical Marine Bio-resources and Ecology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, 510301, People's Republic of China
- Guangdong Key Laboratory of Marine Materia Medica, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, 510301, People's Republic of China
| | - Yun Zhang
- Key Laboratory of Tropical Marine Bio-resources and Ecology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, 510301, People's Republic of China
- Guangdong Key Laboratory of Marine Materia Medica, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, 510301, People's Republic of China
| | - Yunfeng Hu
- Key Laboratory of Tropical Marine Bio-resources and Ecology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, 510301, People's Republic of China.
- Guangdong Key Laboratory of Marine Materia Medica, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, 510301, People's Republic of China.
- South China Sea Bio-Resource Exploitation and Utilization Collaborative Innovation Center, Guangzhou, People's Republic of China.
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33
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Deb ML, Pegu CD, Borpatra PJ, Baruah PK. Copper catalyzed oxidative deamination of Betti bases: an efficient approach for benzoylation/formylation of naphthols and phenols. RSC Adv 2016. [DOI: 10.1039/c6ra04567g] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
Abstract
A copper-catalyzed benzoylation/formylation of naphthols and phenols via oxidative deamination of Betti bases.
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Affiliation(s)
- Mohit L. Deb
- Department of Applied Sciences
- GUIST
- Gauhati University
- Guwahati-781014
- India
| | - Choitanya Dev Pegu
- Department of Applied Sciences
- GUIST
- Gauhati University
- Guwahati-781014
- India
| | - Paran J. Borpatra
- Department of Applied Sciences
- GUIST
- Gauhati University
- Guwahati-781014
- India
| | - Pranjal K. Baruah
- Department of Applied Sciences
- GUIST
- Gauhati University
- Guwahati-781014
- India
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34
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Chen Z, Duan HQ, Jiang X, Zhu YM, Ji SJ, Yang SL. Palladium-Catalyzed Domino Synthesis of 4-Amino-3-acyl-2- naphthols via Isocyanide Chemoselective Insertion. J Org Chem 2015; 80:8183-8. [PMID: 26246028 DOI: 10.1021/acs.joc.5b01269] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
A novel and efficient strategy for the synthesis of sterically hindered 4-amino-3-acyl-2-naphthols through a palladium-catalyzed coupling reaction involving isocyanide chemselective insertion and domino isomerization has been developed. The methodology, which is in accordance with the principle of "atom and step economy", efficiently constructs 4-amino-3-acyl-2-naphthols in moderate to good yields.
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Affiliation(s)
- Zhong Chen
- †College of Pharmaceutical Science and ‡College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123, China
| | - Hua-Qing Duan
- †College of Pharmaceutical Science and ‡College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123, China
| | - Xiao Jiang
- †College of Pharmaceutical Science and ‡College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123, China
| | - Yong-Ming Zhu
- †College of Pharmaceutical Science and ‡College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123, China
| | - Shun-Jun Ji
- †College of Pharmaceutical Science and ‡College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123, China
| | - Shi-Lin Yang
- †College of Pharmaceutical Science and ‡College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123, China
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35
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Bornadiego A, Díaz J, Marcos CF. Regioselective Tandem [4 + 1]–[4 + 2] Synthesis of Amino-Substituted Dihydroxanthones and Xanthones. J Org Chem 2015; 80:6165-72. [DOI: 10.1021/acs.joc.5b00658] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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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36
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Versatile synthesis of 3,4-dihydroisoquinolin-1(2 H )-one derivatives via intra-molecular Friedel–Crafts reaction with trifluoromethanesulfonic acid. Tetrahedron Lett 2015. [DOI: 10.1016/j.tetlet.2015.01.168] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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37
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Zhang Y, Liu Y, Wan JP. Copper-catalyzed three-component reactions of phenols, acyl chlorides and Wittig reagents for the synthesis of β-aryloxyl acrylates. NEW J CHEM 2015. [DOI: 10.1039/c4nj02010c] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
A new protocol towards the diversity-oriented synthesis of β-aryloxyl acrylates has been developed using simple reactants and catalyst.
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Affiliation(s)
- Yi Zhang
- Key Laboratory of Functional Small Organic Molecules
- Ministry of Education
- College of Chemistry and Chemical Engineering
- Jiangxi Normal University
- Nanchang 330022
| | - Yunyun Liu
- Key Laboratory of Functional Small Organic Molecules
- Ministry of Education
- College of Chemistry and Chemical Engineering
- Jiangxi Normal University
- Nanchang 330022
| | - Jie-Ping Wan
- Key Laboratory of Functional Small Organic Molecules
- Ministry of Education
- College of Chemistry and Chemical Engineering
- Jiangxi Normal University
- Nanchang 330022
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38
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4-[2-(Trimethylsilyl)ethynyl]benzoates: Synthesis and evaluation for mesomorphic properties of some novel calamitic molecules. J Organomet Chem 2014. [DOI: 10.1016/j.jorganchem.2014.09.037] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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39
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Effective Friedel-Crafts Acylation of Biotin Acid Chloride in Trifluoromethanesulfonic Acid. Biosci Biotechnol Biochem 2014; 76:2162-4. [DOI: 10.1271/bbb.120553] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Wang L, Murai Y, Yoshida T, Okamoto M, Tachrim ZP, Hashidoko Y, Hashimoto M. Utilization of acidic α-amino acids as acyl donors: an effective stereo-controllable synthesis of aryl-keto α-amino acids and their derivatives. Molecules 2014; 19:6349-67. [PMID: 24840903 PMCID: PMC6271428 DOI: 10.3390/molecules19056349] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2014] [Revised: 05/08/2014] [Accepted: 05/12/2014] [Indexed: 12/03/2022] Open
Abstract
Aryl-keto-containing α-amino acids are of great importance in organic chemistry and biochemistry. They are valuable intermediates for the construction of hydroxyl α-amino acids, nonproteinogenic α-amino acids, as well as other biofunctional components. Friedel-Crafts acylation is an effective method to prepare aryl-keto derivatives. In this review, we summarize the preparation of aryl-keto containing α-amino acids by Friedel-Crafts acylation using acidic α-amino acids as acyl-donors and Lewis acids or Brönsted acids as catalysts.
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Affiliation(s)
- Lei Wang
- Division of Applied Bioscience, Graduate School of Agriculture, Hokkaido University, Kita 9, Nishi 9, Kita-ku, Sapporo 060-8589, Japan
| | - Yuta Murai
- Faculty of Advanced Life Science, Frontier Research Center for Post-Genome Science and Technology, Hokkaido University, Kita 21, Nishi 11, Kita-ku, Sapporo 001-0021, Japan
| | - Takuma Yoshida
- Division of Applied Bioscience, Graduate School of Agriculture, Hokkaido University, Kita 9, Nishi 9, Kita-ku, Sapporo 060-8589, Japan
| | - Masashi Okamoto
- Division of Applied Bioscience, Graduate School of Agriculture, Hokkaido University, Kita 9, Nishi 9, Kita-ku, Sapporo 060-8589, Japan
| | - Zetryana Puteri Tachrim
- Division of Applied Bioscience, Graduate School of Agriculture, Hokkaido University, Kita 9, Nishi 9, Kita-ku, Sapporo 060-8589, Japan
| | - Yasuyuki Hashidoko
- Division of Applied Bioscience, Graduate School of Agriculture, Hokkaido University, Kita 9, Nishi 9, Kita-ku, Sapporo 060-8589, Japan
| | - Makoto Hashimoto
- Division of Applied Bioscience, Graduate School of Agriculture, Hokkaido University, Kita 9, Nishi 9, Kita-ku, Sapporo 060-8589, Japan.
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Prajapti SK, Nagarsenkar A, Babu BN. Tris(pentafluorophenyl)borane catalyzed acylation of alcohols, phenols, amines, and thiophenols under solvent-free condition. Tetrahedron Lett 2014. [DOI: 10.1016/j.tetlet.2014.01.124] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Hashimoto M, Murai Y. Synthesis of Photoreactive Aromatic ^|^alpha;-Amino Acids and Effective Hydrogen-Deuterium Exchange for Aromatic ^|^alpha;-Amino Acids. J SYN ORG CHEM JPN 2014. [DOI: 10.5059/yukigoseikyokaishi.72.360] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Yamaguchi M, Kimura T, Shinohara N, Manabe K. Repetitive two-step method for o,o,p- and o,p-oligophenylene synthesis through Pd-catalyzed cross-coupling of hydroxyterphenylboronic acid. Molecules 2013; 18:15207-19. [PMID: 24335574 PMCID: PMC6270598 DOI: 10.3390/molecules181215207] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2013] [Revised: 11/22/2013] [Accepted: 11/27/2013] [Indexed: 11/17/2022] Open
Abstract
A repetitive two-step method involving the Pd-catalyzed Suzuki-Miyaura coupling of hydroxyterphenylboronic acid and the subsequent nonaflation of the hydroxy group has been developed for the synthesis of oligophenylenes. This method readily afforded o,o,p- and o,p-oligophenylenes with defined chain lengths. X-ray crystallography was employed to obtain the structure of the o,p-oligophenylene 9-mer.
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Affiliation(s)
| | | | | | - Kei Manabe
- School of Pharmaceutical Sciences, University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan.
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He Y, Zhang X, Shen N, Fan X. Tunable Synthesis of 3-Acyl-2-naphthols and 3-Substituted Isocoumarins via Jones Reagent Promoted Cascade Reactions of 2-(4-Hydroxy-but-1-ynyl)benzaldehydes. J Org Chem 2013; 78:10178-91. [DOI: 10.1021/jo401502k] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Yan He
- School of Environment,
Key Laboratory for Yellow River and Huai River Water Environment and
Pollution Control, Ministry of Education, Henan Normal University, Xinxiang, Henan 453007, PR China
- School of Chemistry
and Chemical Engineering, Key Laboratory of Green Chemical Media and
Reactions, Ministry of Education, Henan Normal University, Xinxiang, Henan 453007, PR China
| | - Xinying Zhang
- School of Chemistry
and Chemical Engineering, Key Laboratory of Green Chemical Media and
Reactions, Ministry of Education, Henan Normal University, Xinxiang, Henan 453007, PR China
| | - Nana Shen
- School of Chemistry
and Chemical Engineering, Key Laboratory of Green Chemical Media and
Reactions, Ministry of Education, Henan Normal University, Xinxiang, Henan 453007, PR China
| | - Xuesen Fan
- School of Environment,
Key Laboratory for Yellow River and Huai River Water Environment and
Pollution Control, Ministry of Education, Henan Normal University, Xinxiang, Henan 453007, PR China
- School of Chemistry
and Chemical Engineering, Key Laboratory of Green Chemical Media and
Reactions, Ministry of Education, Henan Normal University, Xinxiang, Henan 453007, PR China
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Ramani T, Umadevi P, Prasanth KL, Sreedhar B. Synthesis ofortho-Hydroxybenzophenones Catalyzed by Magnetically Retrievable Fe3O4Nanoparticles under Ligand-Free Conditions. European J Org Chem 2013. [DOI: 10.1002/ejoc.201300909] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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Murai Y, Wang L, Masuda K, Sakihama Y, Hashidoko Y, Hatanaka Y, Hashimoto M. Rapid and Controllable Hydrogen/Deuterium Exchange on Aromatic Rings of α-Amino Acids and Peptides. European J Org Chem 2013. [DOI: 10.1002/ejoc.201300405] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Le K, Chand LB, Griffin C, Williams AL, Taylor DK. Paraphenylene dimers with diphenylamine donor groups: synthesis and photophysics. Tetrahedron Lett 2013. [DOI: 10.1016/j.tetlet.2013.03.141] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Murai Y, Masuda K, Ogasawara Y, Wang L, Hashidoko Y, Hatanaka Y, Iwata S, Kobayashi T, Hashimoto M. Synthesis of Photoreactive 2-Phenethylamine Derivatives - Synthesis of Adenosine Derivatives Enabling Functional Analysis of Adenosine Receptors by Photoaffinity Labeling. European J Org Chem 2013. [DOI: 10.1002/ejoc.201201657] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Hashimoto M, Murai Y, Wang L, Muto Y, Sakihama Y, Hashidoko Y, Hatanaka Y. Simple and Stereocontrolled Preparation of Benzoylated Phenylalanine Using Friedel–Crafts Reaction in Trifluoromethanesulfonic Acid for Photoaffinity Labeling. HETEROCYCLES 2013. [DOI: 10.3987/com-13-12815] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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