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Maitra PK, Bhattacharyya S, Hickey N, Mukherjee PS. Self-Assembly of a Water-Soluble Pd 16 Square Bicupola Architecture and Its Use in Aerobic Oxidation in Aqueous Medium. J Am Chem Soc 2024. [PMID: 38785321 DOI: 10.1021/jacs.4c02956] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/25/2024]
Abstract
Designing supramolecular architectures with uncommon geometries has always been a key goal in the field of metal-ligand coordination-driven self-assembly. It acquires added significance if functional building units are employed in constructing such architectures for fruitful applications. In this report, we address both these aspects by developing a water-soluble Pd16L8 coordination cage 1 with an unusual square orthobicupola geometry, which was used for selective aerobic oxidation of aryl sulfides. Self-assembly of a benzothiadiazole-based tetra-pyridyl donor L with a ditopic cis-[(tmeda)Pd(NO3)2] acceptor [tmeda = N,N,N',N'-tetramethylethane-1,2-diamine] produced 1, and the geometry was determined by single-crystal X-ray diffraction study. Unlike the typically observed tri- or tetrafacial barrel, the present Pd16L8 coordination assembly features a distinctive structural topology and is a unique example of a water-soluble molecular architecture with a square orthobicupola geometry. Efficient and selective aerobic oxidation of sulfides to sulfoxides is an important challenge as conventional oxidation generally leads to the formation of sulfoxide along with toxic sulfone. Cage 1, designed with a ligand containing a benzothiadiazole moiety, demonstrates an ability to photogenerate reactive oxygen species (ROS) in water, thus enabling it to serve as a potential photocatalyst. The cage showed excellent catalytic efficiency for highly selective conversion of alkyl and aryl sulfides to their corresponding sulfoxides, therefore without the formation of toxic sulfones and other byproducts, under visible light in aqueous medium.
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Affiliation(s)
- Pranay Kumar Maitra
- Department of Inorganic and Physical Chemistry, Indian Institute of Science, Bangalore 560012, India
| | - Soumalya Bhattacharyya
- Department of Inorganic and Physical Chemistry, Indian Institute of Science, Bangalore 560012, India
| | - Neal Hickey
- Department of Chemical and Pharmaceutical Sciences, University of Trieste, Trieste 34127, Italy
| | - Partha Sarathi Mukherjee
- Department of Inorganic and Physical Chemistry, Indian Institute of Science, Bangalore 560012, India
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2
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Chetty LC, Kruger HG, Arvidsson PI, Naicker T, Govender T. Investigating the efficacy of green solvents and solvent-free conditions in hydrogen-bonding mediated organocatalyzed model reactions. RSC Adv 2024; 14:7992-7998. [PMID: 38454950 PMCID: PMC10918449 DOI: 10.1039/d4ra00679h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2024] [Accepted: 02/25/2024] [Indexed: 03/09/2024] Open
Abstract
In this study, we have delved into various reactions conducted using green solvents or under solvent-free conditions, employing hydrogen bonding organocatalysis to advance more sustainable practices in chemical synthesis. The outcomes suggest that cyclopentyl methyl ether could potentially replace non-polar organic solvents such as hexane and toluene with comparable enantioselectivity and yields. The non-polar nature of liquefied or supercritical CO2 restricts its application to reactions that require non-polar solvents. Furthermore, pursuing solvent-free conditions, even without liquid substrates, might result in similar conversion rates with reduced catalyst loading. These findings highlight the potential of exploring solvent-free conditions when enantioselectivity is not of concern. Based on the results, solvent-free conditions and bio-based solvents can serve as viable alternatives to conventional organic solvents without compromising performance. This is expected to influence the way chemists approach reaction optimisation within method development in the field, fostering a broader adoption of environmentally friendly approaches.
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Affiliation(s)
- Lloyd C Chetty
- Catalysis and Peptide Research Unit, University of KwaZulu Natal Durban 4001 South Africa
| | - Hendrik G Kruger
- Catalysis and Peptide Research Unit, University of KwaZulu Natal Durban 4001 South Africa
| | - Per I Arvidsson
- Catalysis and Peptide Research Unit, University of KwaZulu Natal Durban 4001 South Africa
- Science for Life Laboratory, Drug Discovery & Development Platform & Division of Translational Medicine and Chemical Biology, Department of Medical Biochemistry and Biophysics, Karolinska Institutet Stockholm Sweden
| | - Tricia Naicker
- Catalysis and Peptide Research Unit, University of KwaZulu Natal Durban 4001 South Africa
| | - Thavendran Govender
- Department of Chemistry, University of Zululand Private Bag X1001 KwaDlangezwa 3886 South Africa
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3
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Testen Ž, Jereb M. Oxidation of N-trifluoromethylthio sulfoximines using NaOCl·5H 2O. Org Biomol Chem 2024; 22:2012-2020. [PMID: 38240529 DOI: 10.1039/d3ob02033a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/07/2024]
Abstract
N-Trifluoromethylthio sulfoximines are biologically interesting compounds, but their potential is still poorly understood. The oxidation of N-trifluoromethylthio sulfoximines led to their corresponding sulfoxide derivatives as a new class of compounds, when using sodium hypochlorite pentahydrate (NaOCl·5H2O) as a green and relatively unexplored reagent. The reactions took place with a small excess of oxidant under environmentally friendly conditions in EtOAc for 16 h at room temperature. Noteworthy distinctions of this transformation are the simplicity, high selectivity, energy and cost efficiency, minimal amounts of non-hazardous waste, isolation of most of the products without the additional need for chromatographic purification, and simple scalability to gram reactions without deterioration of the yield. The reaction exhibited excellent green chemistry metrics with high atom economy (82.0%), actual atom economy (79.5%), reaction mass efficiency (79.7%), E-factor (16.48) and a very high EcoScale score (84.5). Competitive experiments demonstrated that electron-rich substrates are more reactive than their electron-poor counterparts. Furthermore, the Suzuki-Miyaura functionalization of N-trifluoromethylsulfaneylidene sulfoximine could be achieved depending on the conditions, resulting in coupling products with or without an introduced sulfoxide moiety. Sonogashira coupling of N-trifluoromethylsulfaneylidene sulfoximine furnished the expected acetylene derivative in high yield, and the reaction conditions are compatible with the newly introduced sulfaneylidene functionality. Bromine and nickel catalysts were also shown to be deprotecting agents of the sulfoxide group. A selected N-trifluoromethylsulfaneylidene sulfoximine demonstrated its stability in water in the presence of air and in dilute hydrochloric acid, while it converted back to the parent sulfoximine under basic conditions.
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Affiliation(s)
- Žan Testen
- University of Ljubljana, Faculty of Chemistry and Chemical Technology, Večna pot 113, 1000 Ljubljana, Slovenia.
| | - Marjan Jereb
- University of Ljubljana, Faculty of Chemistry and Chemical Technology, Večna pot 113, 1000 Ljubljana, Slovenia.
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4
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Skolia E, Gkizis PL, Kokotos CG. Aerobic Photocatalysis: Oxidation of Sulfides to Sulfoxides. Chempluschem 2022; 87:e202200008. [PMID: 35199489 DOI: 10.1002/cplu.202200008] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2022] [Revised: 02/14/2022] [Indexed: 12/19/2022]
Abstract
Sulfoxides constitute one of the most important functional groups in organic chemistry found in numerous pharmaceuticals and natural products. Sulfoxides are usually obtained from the oxidation of the corresponding sulfides. Among various oxidants, oxygen or air are considered the greenest and most sustainable reagent. Photochemistry and photocatalysis is increasingly applied in new, as well as traditional, yet demanding, reaction, like the aerobic oxidation of sulfides to sulfoxides, since photocatalysis has provided the means to access them in mild and effective ways. In this review, we will summarize the photochemical protocols that have been developed for the oxidation of sulfides to sulfoxides, employing air or oxygen as the oxidant. The aim of this review is to present: i) a historical overview, ii) the key mechanistic studies and proposed mechanisms and iii) categorize the different catalytic systems in literature.
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Affiliation(s)
- Elpida Skolia
- Laboratory of Organic Chemistry, Department of Chemistry, National and Kapodistrian University of Athens, Panepistimioupolis 15771, Athens, Greece
| | - Petros L Gkizis
- Laboratory of Organic Chemistry, Department of Chemistry, National and Kapodistrian University of Athens, Panepistimioupolis 15771, Athens, Greece
| | - Chistoforos G Kokotos
- Laboratory of Organic Chemistry, Department of Chemistry, National and Kapodistrian University of Athens, Panepistimioupolis 15771, Athens, Greece
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5
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Zhang X, Zhou R, Qi Z, Chen L, Yu L. PhSe(O)OH/Al(NO 3) 3-Catalyzed selectivity controllable oxidation of sulphide owing to the synergistic effect of Se, Al 3+ and nitrate. REACT CHEM ENG 2022. [DOI: 10.1039/d2re00190j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Catalyzed by PhSe(O)OH/Al(NO3)3, selective oxidation of sulphides to produce sulfoxides or sulphones could be achieved under mild conditions. The synergistic effect of Se, Al3+ and nitrate is the key factor for the reaction.
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Affiliation(s)
- Xu Zhang
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, 225002, China
| | - Rui Zhou
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, 225002, China
| | - Zhengyuan Qi
- College of Information Science and Technology, Gansu Agricultural University, Lanzhou, Gansu, 730070, China
| | - Liping Chen
- College of Chemical Engineering, Yangzhou Polytechnic Institute, Yangzhou 225127, China
| | - Lei Yu
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, 225002, China
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6
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Kotha S, Gupta NK, Ansari S. One-pot thiol-free synthetic approach to sulfides, and sulfoxides selectively. RSC Adv 2022; 12:25154-25162. [PMID: 36199306 PMCID: PMC9443682 DOI: 10.1039/d2ra04872h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2022] [Accepted: 08/25/2022] [Indexed: 11/21/2022] Open
Abstract
A facile and efficient thiol-free one-pot method for direct synthesis of sulfides and sulfoxides under green conditions without using any metal catalyst is reported. For this purpose, we used benzyl bromides as starting materials in the presence of potassium thioacetate (PTA) and Oxone® which are low-cost, and readily accessible chemicals. This method is highly compatible with a variety of functional groups and delivered a series of sulfides, bis-sulfides, and sulfoxides in good yields. The selective formation of sulfoxides over sulfones is discussed via a mechanism. A facile and efficient thiol-free one-pot method for direct synthesis of sulfides and sulfoxides under green conditions without using any metal catalyst is reported.![]()
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Affiliation(s)
- Sambasivarao Kotha
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - Naveen Kumar Gupta
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - Saima Ansari
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
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7
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Bresciani G, Gemmiti M, Ciancaleoni G, Pampaloni G, Marchetti F, Crucianelli M. Niobium(V) oxido tris-carbamate as easily available and robust catalytic precursor for the selective sulfide to sulfone oxidation. MOLECULAR CATALYSIS 2021. [DOI: 10.1016/j.mcat.2021.111972] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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8
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Park JK, Lee S. Sulfoxide and Sulfone Synthesis via Electrochemical Oxidation of Sulfides. J Org Chem 2021; 86:13790-13799. [PMID: 34549959 DOI: 10.1021/acs.joc.1c01657] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The oxidation of diaryl sulfides and aryl alkyl sulfides to the corresponding sulfoxides and sulfones under electrochemical conditions is reported. Sulfoxides are selectively obtained in good yield under a constant current of 5 mA for 10 h in DMF, while sulfones are formed as the major product under a constant current of 10 or 20 mA for 10 h in MeOH. The oxygen of both the sulfoxide and sulfone function is derived from water.
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Affiliation(s)
- Jin Kyu Park
- Department of Chemistry, Chonnam National University, Gwangju, 61186, Republic of Korea
| | - Sunwoo Lee
- Department of Chemistry, Chonnam National University, Gwangju, 61186, Republic of Korea
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9
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Anselmi S, Liu S, Kim SH, Barry SM, Moody TS, Castagnolo D. A mild and chemoselective CALB biocatalysed synthesis of sulfoxides exploiting the dual role of AcOEt as solvent and reagent. Org Biomol Chem 2021; 19:156-161. [PMID: 33179689 DOI: 10.1039/d0ob01966f] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
A mild, chemoselective and sustainable biocatalysed synthesis of sulfoxides has been developed exploiting CALB and using AcOEt with a dual role of more environmentally friendly reaction solvent and enzyme substrate. A series of sulfoxides, including the drug omeprazole, have been synthesised in high yields and with excellent E-factors.
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Affiliation(s)
- Silvia Anselmi
- School of Cancer and Pharmaceutical Sciences, King's College London, 150 Stamford Street, SE1 9NH, London, UK.
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10
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Horvat M, Kodrič G, Jereb M, Iskra J. One pot synthesis of trifluoromethyl aryl sulfoxides by trifluoromethylthiolation of arenes and subsequent oxidation with hydrogen peroxide. RSC Adv 2020; 10:34534-34540. [PMID: 35514387 PMCID: PMC9056837 DOI: 10.1039/d0ra04621c] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2020] [Accepted: 09/05/2020] [Indexed: 11/21/2022] Open
Abstract
Hydrogen peroxide was used for oxidation of various aryl trifluoromethyl sulfides. Trifluoroacetic acid was used as an activating solvent that enables non-catalyzed oxidation and increases selectivity for sulfoxide formation. As shown by oxidation of thianthrene TFA enhances electrophilic character of the oxidant and further oxidation of sulfoxide group is blocked. We have joined trifluoromethylthiolation of arenes using a modified Billard reagent (p-ClPhNHSCF3) with oxidation of aryl trifluoromethyl sulfides using 1.2 equiv. of 30% aqueous hydrogen peroxide and this one-pot process has superior yields than would have been obtained in a two step process.
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Affiliation(s)
- Monika Horvat
- Faculty of Chemistry and Chemical Technology, University of Ljubljana Večna pot 113 1000 Ljubljana Slovenia
| | - Gregor Kodrič
- Faculty of Chemistry and Chemical Technology, University of Ljubljana Večna pot 113 1000 Ljubljana Slovenia
| | - Marjan Jereb
- Faculty of Chemistry and Chemical Technology, University of Ljubljana Večna pot 113 1000 Ljubljana Slovenia
| | - Jernej Iskra
- Faculty of Chemistry and Chemical Technology, University of Ljubljana Večna pot 113 1000 Ljubljana Slovenia
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11
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Dutta A, Chetia M, Ali AA, Bordoloi A, Gehlot PS, Kumar A, Sarma D. Copper Nanoparticles Immobilized on Nanocellulose: A Novel and Efficient Heterogeneous Catalyst for Controlled and Selective Oxidation of Sulfides and Alcohols. Catal Letters 2018. [DOI: 10.1007/s10562-018-2615-x] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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12
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Chen M, Jin Y, Li J, Zhang Y, Li X. Mechanism and Kinetic Model for Autocatalysis in Liquid–Liquid System: Oxidation of Dibutyl Sulfide with Aqueous Hydrogen Peroxide. Ind Eng Chem Res 2017. [DOI: 10.1021/acs.iecr.7b01416] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Ming Chen
- Department of Chemical Engineering, Sichuan University, Chengdu, Sichuan 610065, P. R. China
| | - Yang Jin
- Department of Chemical Engineering, Sichuan University, Chengdu, Sichuan 610065, P. R. China
| | - Jun Li
- Department of Chemical Engineering, Sichuan University, Chengdu, Sichuan 610065, P. R. China
| | - Yuqiang Zhang
- Department of Chemical Engineering, Sichuan University, Chengdu, Sichuan 610065, P. R. China
| | - Xing Li
- Department of Chemical Engineering, Sichuan University, Chengdu, Sichuan 610065, P. R. China
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13
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Khosravi K, Naserifar S, Mahmoudi B, Khalaji K. 1,1,2,2-Tetrahydroperoxy-1,2-diphenylethane as new oxidant for chemoselective and catalyst free oxidation of sulfides to sulfoxides and sulfones. PHOSPHORUS SULFUR 2016. [DOI: 10.1080/10426507.2016.1237951] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Kaveh Khosravi
- Department of Chemistry, Faculty of Science, Arak University, Arak, Iran
| | - Shirin Naserifar
- Department of Chemistry, Faculty of Science, Arak University, Arak, Iran
| | - Boshra Mahmoudi
- Chemical Engineering Department, Faculty of Engineering, Soran University, Erbil/Soran, Iraq-Kurdistan Region
| | - Kobra Khalaji
- Department of Chemistry, Faculty of Science, Arak University, Arak, Iran
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14
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La Sorella G, Sperni L, Strukul G, Scarso A. Supramolecular Activation of Hydrogen Peroxide in the Selective Sulfoxidation of Thioethers by a Self-Assembled Hexameric Capsule. Adv Synth Catal 2016. [DOI: 10.1002/adsc.201600430] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Giorgio La Sorella
- Dipartimento di Scienze Molecolari e Nanosistemi; Università Ca' Foscari di Venezia; via Torino 155 30172 Mestre (VE) Italy
| | - Laura Sperni
- Dipartimento di Scienze Molecolari e Nanosistemi; Università Ca' Foscari di Venezia; via Torino 155 30172 Mestre (VE) Italy
| | - Giorgio Strukul
- Dipartimento di Scienze Molecolari e Nanosistemi; Università Ca' Foscari di Venezia; via Torino 155 30172 Mestre (VE) Italy
| | - Alessandro Scarso
- Dipartimento di Scienze Molecolari e Nanosistemi; Università Ca' Foscari di Venezia; via Torino 155 30172 Mestre (VE) Italy
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15
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Kuciński K, Pawluć P, Hreczycho G. Scandium(III) Triflate-Catalyzedanti-Markovnikov Hydrothiolation of Functionalized Olefins. Adv Synth Catal 2015. [DOI: 10.1002/adsc.201500720] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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16
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Karimi B, Khorasani M, Bakhshandeh Rostami F, Elhamifar D, Vali H. Tungstate Supported on Periodic Mesoporous Organosilica with Imidazolium Framework as an Efficient and Recyclable Catalyst for the Selective Oxidation of Sulfides. Chempluschem 2015; 80:990-999. [DOI: 10.1002/cplu.201500010] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2015] [Indexed: 12/20/2022]
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17
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Huang Y, Tong Y, Wang C, Tang K, Yang Y. Solvent extraction of palladium(ii) with newly synthesized asymmetric branched alkyl sulfoxides from hydrochloric acid. RSC Adv 2015. [DOI: 10.1039/c5ra09166g] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A group of new asymmetric branched alkyl sulfoxides was synthesized and applied in palladium(ii) extraction for the first time.
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Affiliation(s)
- Yixian Huang
- Key Laboratory for Special Functional Aggregated Materials of Education Ministry
- School of Chemistry and Chemical Engineering
- Shandong University
- Jinan 250100
- China
| | - Yu Tong
- Key Laboratory for Special Functional Aggregated Materials of Education Ministry
- School of Chemistry and Chemical Engineering
- Shandong University
- Jinan 250100
- China
| | - Chen Wang
- Key Laboratory for Special Functional Aggregated Materials of Education Ministry
- School of Chemistry and Chemical Engineering
- Shandong University
- Jinan 250100
- China
| | - Ke Tang
- Key Laboratory for Special Functional Aggregated Materials of Education Ministry
- School of Chemistry and Chemical Engineering
- Shandong University
- Jinan 250100
- China
| | - Yanzhao Yang
- Key Laboratory for Special Functional Aggregated Materials of Education Ministry
- School of Chemistry and Chemical Engineering
- Shandong University
- Jinan 250100
- China
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18
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Mandal M, Chakraborty D. Kinetic investigation on the highly efficient and selective oxidation of sulfides to sulfoxides and sulfones with t-BuOOH catalyzed by La2O3. RSC Adv 2015. [DOI: 10.1039/c4ra14391d] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
An efficient and highly selective methodology for the oxidation of various sulfides with 70% t-BuOOH as oxidant in the presence of catalytic amounts of La2O3 is described.
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Affiliation(s)
- Mrinmay Mandal
- Department of Chemistry
- Indian Institute of Technology Patna
- Patna-800 013
- India
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19
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Kon Y, Yokoi T, Yoshioka M, Tanaka S, Uesaka Y, Mochizuki T, Sato K, Tatsumi T. Selective hydrogen peroxide oxidation of sulfides to sulfoxides or sulfones with MWW-type titanosilicate zeolite catalyst under organic solvent-free conditions. Tetrahedron 2014. [DOI: 10.1016/j.tet.2014.07.091] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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20
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Heikkilä T, Sillanpää R, Lehtonen A. Oxomolybdenum(VI) complexes with glycine bisphenol [O,N,O,O′] ligand: synthesis and catalytic studies. J COORD CHEM 2014. [DOI: 10.1080/00958972.2014.928287] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- Tero Heikkilä
- Laboratory of Materials Chemistry and Chemical Analysis, Department of Chemistry, University of Turku, Turku, Finland
| | - Reijo Sillanpää
- Laboratory of Inorganic Chemistry, Department of Chemistry, University of Jyväskylä, Jyväskylä, Finland
| | - Ari Lehtonen
- Laboratory of Materials Chemistry and Chemical Analysis, Department of Chemistry, University of Turku, Turku, Finland
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21
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Secci F, Arca M, Frongia A, Piras PP. New aminotetrazole derivatives as hydrogen bonding catalysts. A green and selective oxidation of organosulphides with H2O2in H2O. NEW J CHEM 2014. [DOI: 10.1039/c4nj00530a] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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22
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Jindal G, Sunoj RB. Axially Chiral Imidodiphosphoric Acid Catalyst for Asymmetric Sulfoxidation Reaction: Insights on Asymmetric Induction. Angew Chem Int Ed Engl 2014; 53:4432-6. [DOI: 10.1002/anie.201309532] [Citation(s) in RCA: 69] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2013] [Revised: 01/12/2014] [Indexed: 11/08/2022]
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23
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Jindal G, Sunoj RB. Axially Chiral Imidodiphosphoric Acid Catalyst for Asymmetric Sulfoxidation Reaction: Insights on Asymmetric Induction. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201309532] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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24
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Yu B, Guo CX, Zhong CL, Diao ZF, He LN. Metal-free chemoselective oxidation of sulfides by in situ generated Koser’s reagent in aqueous media. Tetrahedron Lett 2014. [DOI: 10.1016/j.tetlet.2014.01.116] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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25
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Khanfar MA, Quinti L, Wang H, Choi SH, Kazantsev AG, Silverman RB. Development and characterization of 3-(benzylsulfonamido)benzamides as potent and selective SIRT2 inhibitors. Eur J Med Chem 2014; 76:414-26. [PMID: 24602787 DOI: 10.1016/j.ejmech.2014.02.003] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2013] [Revised: 01/23/2014] [Accepted: 02/05/2014] [Indexed: 10/25/2022]
Abstract
Inhibitors of sirtuin-2 deacetylase (SIRT2) have been shown to be protective in various models of Huntington's disease (HD) by decreasing polyglutamine aggregation, a hallmark of HD pathology. The present study was directed at optimizing the potency of SIRT2 inhibitors containing the neuroprotective sulfobenzoic acid scaffold and improving their pharmacology. To achieve that goal, 176 analogues were designed, synthesized, and tested in deacetylation assays against the activities of major human sirtuins SIRT1-3. This screen yielded 15 compounds with enhanced potency for SIRT2 inhibition and 11 compounds having SIRT2 inhibition equal to reference compound AK-1. The newly synthesized compounds also demonstrated higher SIRT2 selectivity over SIRT1 and SIRT3. These candidates were subjected to a dose-response bioactivity assay, measuring an increase in α-tubulin K40 acetylation in two neuronal cell lines, which yielded five compounds bioactive in both cell lines and eight compounds bioactive in at least one of the cell lines tested. These bioactive compounds were subsequently tested in a tertiary polyglutamine aggregation assay, which identified five inhibitors. ADME properties of the bioactive SIRT2 inhibitors were assessed, which revealed a significant improvement of the pharmacological properties of the new entities, reaching closer to the goal of a clinically-viable candidate.
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Affiliation(s)
- Mohammad A Khanfar
- Department of Chemistry, Department of Molecular Biosciences, Chemistry of Life Processes Institute, Center for Molecular Innovation and Drug Discovery, Northwestern University, 2145 Sheridan Road, Evanston, IL 60208-3113, USA; Department of Pharmaceutical Sciences, The University of Jordan, Amman, Jordan
| | - Luisa Quinti
- Department of Neurology, Harvard Medical School and Massachusetts General Hospital, Charlestown, MA 02129-4404, USA
| | - Hua Wang
- Department of Chemistry, Department of Molecular Biosciences, Chemistry of Life Processes Institute, Center for Molecular Innovation and Drug Discovery, Northwestern University, 2145 Sheridan Road, Evanston, IL 60208-3113, USA
| | - Soo Hyuk Choi
- Department of Chemistry, Department of Molecular Biosciences, Chemistry of Life Processes Institute, Center for Molecular Innovation and Drug Discovery, Northwestern University, 2145 Sheridan Road, Evanston, IL 60208-3113, USA
| | - Aleksey G Kazantsev
- Department of Neurology, Harvard Medical School and Massachusetts General Hospital, Charlestown, MA 02129-4404, USA.
| | - Richard B Silverman
- Department of Chemistry, Department of Molecular Biosciences, Chemistry of Life Processes Institute, Center for Molecular Innovation and Drug Discovery, Northwestern University, 2145 Sheridan Road, Evanston, IL 60208-3113, USA.
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Secci F, Arca M, Frongia A, Piras PP. Tetrazole amides as hydrogen-bonding donor catalysts in the chemoselective oxidation of sulphides and disulphides. Catal Sci Technol 2014. [DOI: 10.1039/c4cy00086b] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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27
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Rennison D, Conole D, Tingle MD, Yang J, Eason CT, Brimble MA. Synthesis and methemoglobinemia-inducing properties of analogues of para-aminopropiophenone designed as humane rodenticides. Bioorg Med Chem Lett 2013; 23:6629-35. [DOI: 10.1016/j.bmcl.2013.10.046] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2013] [Revised: 10/22/2013] [Accepted: 10/23/2013] [Indexed: 10/26/2022]
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29
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Ghorbani-Choghamarani A, Goudarziafshar H, Hajjami M, Soltani J. Aluminium Nitrate/Silica Sulfuric Acid/Bromide Ion: As an Effective and Catalytic Oxidizing Media for the Selective Oxidation of Sulfides to Sulfoxides. J CHIN CHEM SOC-TAIP 2013. [DOI: 10.1002/jccs.200800176] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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30
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Kon Y, Yokoi T, Yoshioka M, Uesaka Y, Kujira H, Sato K, Tatsumi T. Selective oxidation of bulky sulfides to sulfoxides over titanosilicates having an MWW structure in the presence of H2O2 under organic solvent-free conditions. Tetrahedron Lett 2013. [DOI: 10.1016/j.tetlet.2013.07.006] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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31
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Karimi B, Khorasani M. Selectivity Adjustment of SBA-15 Based Tungstate Catalyst in Oxidation of Sulfides by Incorporating a Hydrophobic Organic Group inside the Mesochannels. ACS Catal 2013. [DOI: 10.1021/cs4003029] [Citation(s) in RCA: 70] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Babak Karimi
- Department of Chemistry, Institute for Advanced Studies
in Basic Sciences (IASBS), P.O. Box 45195-1159, Gava-zang, Zanjan
45137-6731, Iran
| | - Mojtaba Khorasani
- Department of Chemistry, Institute for Advanced Studies
in Basic Sciences (IASBS), P.O. Box 45195-1159, Gava-zang, Zanjan
45137-6731, Iran
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32
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Wu XF, Petrosyan A, Ghochikyan TV, Saghyan AS, Langer P. Metal-free oxidation of benzyl amines to imines. Tetrahedron Lett 2013. [DOI: 10.1016/j.tetlet.2013.04.018] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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33
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Catalytic Epoxidations with Pyridinebis(oxazoline)–Methyltrioxorhenium Complexes and Nitrogen‐Containing Catalyst Systems. Eur J Inorg Chem 2012. [DOI: 10.1002/ejic.201200736] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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35
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36
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Oxidomolybdenum(VI) complexes with aminoalcohol bis(phenolate) [O,N,O,O′] ligands: Synthesis and catalytic studies. INORG CHEM COMMUN 2012. [DOI: 10.1016/j.inoche.2012.03.043] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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37
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Thiourea dioxide (TUD): a robust organocatalyst for oxidation of sulfides to sulfoxides with TBHP under mild reaction conditions. Tetrahedron Lett 2011. [DOI: 10.1016/j.tetlet.2011.04.088] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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38
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Möller K, Wienhöfer G, Schröder K, Join B, Junge K, Beller M. Selective iron-catalyzed oxidation of phenols and arenes with hydrogen peroxide: synthesis of vitamin e intermediates and vitamin K(3). Chemistry 2010; 16:10300-3. [PMID: 20661966 DOI: 10.1002/chem.201001429] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Konstanze Möller
- Leibniz-Institut für Katalyse e.V. an der Universität Rostock, Albert-Einstein-Straße 29a, 18059 Rostock, Germany
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Jakob F, Herdtweck E, Bach T. Synthesis and Properties of Chiral Pyrazolidines Derived from (+)-Pulegone. Chemistry 2010; 16:7537-46. [PMID: 20496356 DOI: 10.1002/chem.201000219] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Florian Jakob
- Lehrstuhl für Organische Chemie 1, Technische Universität München, Lichtenbergstrasse 4, 85747 Garching, Germany
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Stingl KA, Tsogoeva SB. Recent advances in sulfoxidation reactions: a metal-free approach. ACTA ACUST UNITED AC 2010. [DOI: 10.1016/j.tetasy.2010.05.020] [Citation(s) in RCA: 67] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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GHORBANI-CHOGHAMARANI A, SARDARI S. Catalytic Oxidation of Sulfides to Sulfoxides by Poly(4-vinyl pyridinium nitrate), Silica Sulfuric Acid and Ammonium Bromide as a Catalyst. CHINESE JOURNAL OF CATALYSIS 2010. [DOI: 10.1016/s1872-2067(10)60124-6] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Jahier C, Felpin FX, Méliet C, Agbossou-Niedercorn F, Hierso JC, Nlate S. 1,1â²-Binaphthyl-2-methylpyridinium-Based Peroxophosphotungstate Salts: Synthesis, Characterization, and Their Use as Oxidation Catalysts. Eur J Inorg Chem 2009. [DOI: 10.1002/ejic.200900682] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Maity P, Mukesh D, Bhaduri S, Lahiri GK. A water soluble heteropolyoxotungstate as a selective, efficient and environment friendly oxidation catalyst. J CHEM SCI 2009. [DOI: 10.1007/s12039-009-0044-5] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Bharadwaj SK, Sharma SN, Hussain S, Chaudhuri MK. Chemoselective sulfoxidation by H2O2 or HNO3 using a phosphate impregnated titania catalyst. Tetrahedron Lett 2009. [DOI: 10.1016/j.tetlet.2009.03.106] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Russo A, Lattanzi A. Hydrogen-Bonding Catalysis: Mild and Highly Chemoselective Oxidation of Sulfides. Adv Synth Catal 2009. [DOI: 10.1002/adsc.200900020] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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48
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Cystathionine gamma-lyase is a component of cystine-mediated oxidative defense in Lactobacillus reuteri BR11. J Bacteriol 2009; 191:1827-37. [PMID: 19124577 DOI: 10.1128/jb.01553-08] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023] Open
Abstract
Lactobacillus reuteri BR11 possesses a novel mechanism of oxidative defense involving an abundant cystine ABC transporter encoded by the cyuABC gene cluster. Large amounts of thiols, including H(2)S, are secreted upon cystine uptake by the CyuC transporter. A cystathionine gamma-lyase (cgl) gene is cotranscribed with the cyu genes in several L. reuteri strains and was hypothesized to participate in cystine-mediated oxidative defense by producing reducing equivalents. This hypothesis was tested with L. reuteri BR11 by constructing a cgl mutant (PNG901) and comparing it to a similarly constructed cyuC mutant (PNG902). Although Cgl was required for H(2)S production from cystine, it was not crucial for oxidative defense in de Mann-Rogosa-Sharpe medium, in contrast to CyuC, whose inactivation resulted in lag-phase arrest in aerated cultures. The importance of Cgl in oxidative defense was seen only in the presence of hemin, which poses severe oxidative stress. The growth defects in aerated cultures of both mutants were alleviated by supplementation with cysteine (and cystine in the cgl mutant) but not methionine, with the cyuC mutant showing a much higher concentration requirement. We conclude that L. reuteri BR11 requires a high concentration of exogenous cysteine/cystine to grow optimally under aerobic conditions. This requirement is fulfilled by the abundant CyuC transporter, which has probably arisen due to the broad substrate specificity of Cgl, resulting in a futile pathway which degrades cystine taken up by the CyuC transporter to H(2)S. Cgl plays a secondary role in oxidative defense by its well-documented function of cysteine biosynthesis.
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Beller M. A personal view on homogeneous catalysis and its perspectives for the use of renewables. EUR J LIPID SCI TECH 2008. [DOI: 10.1002/ejlt.200800062] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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50
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Li HH, Dong DJ, Tian SK. Three-Component Synthesis of Amine Derivatives Using Benzylic and Allylic Alcohols asN-Alkylating Agents in the Absence of External Catalysts and Additives. European J Org Chem 2008. [DOI: 10.1002/ejoc.200800465] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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