1
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Chen W, Hou X, Mao X, Jiao S, Wei L, Wang Y, Liu J, Jiang G. Biotic and Abiotic Transformation Pathways of a Short-Chain Chlorinated Paraffin Congener, 1,2,5,6,9,10-C 10H 16Cl 6, in a Rice Seedling Hydroponic Exposure System. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2022; 56:9486-9496. [PMID: 35622943 DOI: 10.1021/acs.est.2c01119] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
In this work, a typical congener of short-chain chlorinated paraffins (SCCPs) with six chlorine atoms (CP-4, 1,2,5,6,9,10-C10H16Cl6, 250 ng/mL) was selected to elaborate the comprehensive environmental transformation of SCCPs in rice seedling exposure system. CP-4 was quickly absorbed, translocated, and phytovolatilized by seedlings with a small quality of CP-4 (5.81-36.5 ng) being detected in the gas phase. Only 21.4 ± 1.6% of an initial amount (10,000 ng) of CP-4 remained in the exposure system at the end of exposure. Among the transformed CP-4, some were attributed to the degradation of the rhizosphere microorganism (9.1 ± 5.8%), root exudates (2.2 ± 4.2%), and abiotic transformation (3.0 ± 2.8%) that were proved by several transformation products found in the root exudate exposure groups and unplanted controls, and a majority was phytotransformed by rice seedlings. Here, 61 products were determined through complex transformation pathways, including multihydroxylation, -HCl elimination, dechlorination, acetylation, sulfation, glycosylation, and amide acid conjugation. The acetylated and amide acid conjugates of CPs were first observed. Phase I and Phase II phytometabolic reactions of CPs were found intertwining. These findings demonstrate that multiactive transformation reactions contribute to the overlook of CPs accumulated in plants and are helpful for the environmental and health risk assessments of SCCPs in agricultural plants.
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Affiliation(s)
- Weifang Chen
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
- College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xingwang Hou
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
- College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xiaowei Mao
- School of Environment and Health, Jianghan University, Wuhan 430056, China
| | - Suning Jiao
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
- College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Linfeng Wei
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
- College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yaotian Wang
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
- College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China
- Research Center for Analytical Sciences, Department of Chemistry, College of Sciences, Northeastern University, Shenyang 110819, China
| | - Jiyan Liu
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
- College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China
- School of Environment, Hangzhou Institute for Advanced Study, UCAS, Hangzhou 310000, China
| | - Guibin Jiang
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
- College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China
- School of Environment, Hangzhou Institute for Advanced Study, UCAS, Hangzhou 310000, China
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2
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Hoang D, Ha A, Dobson TJ, Lear ME, McLoughlin CP, Phan NA, Valente EJ, Urnezius E. 2,5-Dihydroxy-1,4-quinones appended with two phosphinyl groups: syntheses, structures, and redox properties. ZEITSCHRIFT FUR NATURFORSCHUNG SECTION B-A JOURNAL OF CHEMICAL SCIENCES 2022. [DOI: 10.1515/znb-2022-0021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
Low temperature reactions of 1,4-dichloro-2,5-dimethoxybenzene with two equivalents of lithium diisopropylamide (LDA) followed by quenches with chlorophosphines ClPR2 (R = Ph or iPr) yielded 1,4-bis(diphenylphosphino)-2,5-dichloro-3,6-dimethoxy-benzene (1a) and 1,4-bis(diisopropylphosphino)-2,5-dichloro-3,6-dimethoxy-benzene (1b). Reactions of 1a-b with 30% hydrogen peroxide yielded 1,4-bis(diphenylphosphinyl)-2,5-dichloro-3,6-dimethoxybenzene (2a) and 1,4-bis(diisopropylphosphinyl)-2,5-dichloro-3,6-dimethoxybenzene (2b). Subjecting compounds 2a-b to BBr3/CH3OH resulted in 2,5-bis(diphenylphosphinyl)-3,6-dichlorohydroquinone 3a and 2,5-bis(diisopropylphosphinyl)-3,6-dichlorohydroquinone 3b. Reactions of 3a-b with K2S2O8 under basic conditions followed by acidification allowed for isolation of 2,5-bis(diphenylphosphinyl)-3,6-dihydroxy-quinone (4a) and 2,5-bis(diisopropylphosphinyl)-3,6-dihydroxy-quinone (4b). Compounds 1a-b – 4a-b were fully characterized by spectroscopic methods (nuclear magnetic resonance [FT-NMR] spectroscopy, infrared [FT-IR] spectroscopy, and high resolution mass spectrometry [HRMS]); 3a-b and 4a-b were also investigated by cyclic voltammetry. Compounds 1a-b , 2a , and 4a-b were also characterized by single-crystal X-ray diffraction methods.
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Affiliation(s)
- David Hoang
- Department of Chemistry , University of Portland , Portland , OR 97203 , USA
| | - Alea Ha
- Department of Chemistry , University of Portland , Portland , OR 97203 , USA
| | - Timothy J. Dobson
- Department of Chemistry , University of Portland , Portland , OR 97203 , USA
| | - Madison E. Lear
- Department of Chemistry , University of Portland , Portland , OR 97203 , USA
| | | | - Nathan A. Phan
- Department of Chemistry , University of Portland , Portland , OR 97203 , USA
| | - Edward J. Valente
- Department of Chemistry , University of Portland , Portland , OR 97203 , USA
| | - Eugenijus Urnezius
- Department of Chemistry , University of Portland , Portland , OR 97203 , USA
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3
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Van Kerrebroeck R, Horsten T, Stevens CV. BROMIDE OXIDATION: A SAFE STRATEGY FOR ELECTROPHILIC BROMINATIONS. European J Org Chem 2022. [DOI: 10.1002/ejoc.202200310] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
| | - Tomas Horsten
- Ghent University: Universiteit Gent Green Chemistry and Technology BELGIUM
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4
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Iordanidis NS, Zografos AL, Gallos JK, Koftis TV, Stathakis CI. Continuous Flow Organocatalytic Chlorination of Alkenes. European J Org Chem 2021. [DOI: 10.1002/ejoc.202100912] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Nicolaos S. Iordanidis
- Department of Chemistry Aristotle University of Thessaloniki University Campus Thessaloniki 541 24 Greece
| | - Alexandros L. Zografos
- Department of Chemistry Aristotle University of Thessaloniki University Campus Thessaloniki 541 24 Greece
| | - John K. Gallos
- Department of Chemistry Aristotle University of Thessaloniki University Campus Thessaloniki 541 24 Greece
| | - Theocharis V. Koftis
- API Research and Development Operations Pharmathen S.A. 9th km Thessaloniki-Thermi Thessaloniki 570 01 Greece
| | - Christos I. Stathakis
- Department of Chemistry Aristotle University of Thessaloniki University Campus Thessaloniki 541 24 Greece
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5
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Rai V, Sorabad GS, Maddani MR. Facile and direct halogenation of 1,2,3-triazoles promoted by a KX–oxone system under transition metal free conditions. NEW J CHEM 2021. [DOI: 10.1039/d0nj05170e] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
A convenient and efficient oxidative halogenation of 4-aryl 1,2,3-triazoles is realized at ambient temperature under transition metal free conditions.
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Affiliation(s)
- Vishakha Rai
- Department of Chemistry
- Mangalore University
- Mangalore
- India
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6
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Rai V, Sorabad GS, Maddani MR. Transition metal free, green and facile halogenation of ketene dithioacetals using a KX–oxidant system. NEW J CHEM 2021. [DOI: 10.1039/d0nj03737k] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
A facile oxidative halogenation of α-oxo ketene dithioacetals is achieved by using a potassium halide and an oxidant combination under transition metal free conditions at ambient temperature.
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Affiliation(s)
- Vishakha Rai
- Department of Chemistry
- Mangalore University
- 574199 Mangalore
- India
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7
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Hasan S, Rauf A. The development of a multifunctional 9,10-dibromooctadecanoic acid-encapsulated heterostructure (Ag@Ag 2O) as a nanocatalyst against water toxicity. NEW J CHEM 2021. [DOI: 10.1039/d1nj01013a] [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
Fatty acid derivatives capped Ag@Ag2O CSN have been easily synthesized. Comparative catalytic degradation studies against various water contaminants, MB, MO and Cr(vi) have been performed. The experimental results are in favor of CSN, compared to simple fatty acid-coated nanoparticles.
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Affiliation(s)
- Shazia Hasan
- Department of Chemistry
- Aligarh Muslim University
- Aligarh 202002
- India
| | - Abdul Rauf
- Department of Chemistry
- Aligarh Muslim University
- Aligarh 202002
- India
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8
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Nikishin GI, Kapustina NI, Sokova LL, Bityukov OV, Terent'ev AO. H2O2/HCl system: Oxidation-chlorination of secondary alcohols to α,α′-dichloro ketones. Tetrahedron Lett 2020. [DOI: 10.1016/j.tetlet.2020.152154] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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9
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Ding R, Huang S, Wang Q, Liu Y, Sun B, Tian H. Dichlorination of olefins with diphenyl sulfoxide/oxalyl chloride. SYNTHETIC COMMUN 2020. [DOI: 10.1080/00397911.2020.1774901] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Rui Ding
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Key Laboratory of Flavor Chemistry, Beijing Technology and Business University, Beijing, China
| | - Shuai Huang
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Key Laboratory of Flavor Chemistry, Beijing Technology and Business University, Beijing, China
| | - Qiyi Wang
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Key Laboratory of Flavor Chemistry, Beijing Technology and Business University, Beijing, China
| | - Yongguo Liu
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Key Laboratory of Flavor Chemistry, Beijing Technology and Business University, Beijing, China
| | - Baoguo Sun
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Key Laboratory of Flavor Chemistry, Beijing Technology and Business University, Beijing, China
| | - Hongyu Tian
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Key Laboratory of Flavor Chemistry, Beijing Technology and Business University, Beijing, China
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10
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Wang L, Feng C, Zhang Y, Hu J. Regioselective Monobromination of Phenols with KBr and ZnAl-BrO 3--Layered Double Hydroxides. Molecules 2020; 25:E914. [PMID: 32085603 PMCID: PMC7070364 DOI: 10.3390/molecules25040914] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2020] [Revised: 02/15/2020] [Accepted: 02/16/2020] [Indexed: 11/19/2022] Open
Abstract
The regioselective mono-bromination of phenols has been successfully developed with KBr and ZnAl-BrO3--layered double hydroxides (abbreviated as ZnAl-BrO3--LDHs) as brominating reagents. The para site is much favorable and the ortho site takes the priority if para site is occupied. This reaction featured with excellent regioselectivity, cheap brominating reagents, mild reaction condition, high atom economy, broad substrate scope, and provided an efficient method to synthesize bromophenols.
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Affiliation(s)
- Ligeng Wang
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310004, China; (C.F.); (Y.Z.)
| | | | | | - Jun Hu
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310004, China; (C.F.); (Y.Z.)
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11
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Fomenko IS, Vincendeau S, Manoury E, Poli R, Abramov PA, Nadolinny VA, Sokolov MN, Gushchin AL. An oxidovanadium(IV) complex with 4,4′-di-tert-butyl-2,2′-bipyridine ligand: Synthesis, structure and catalyzed cyclooctene epoxidation. Polyhedron 2020. [DOI: 10.1016/j.poly.2019.114305] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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12
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Hasan S, Rauf A, Saleem S. Nanoformulation of C-18 long fatty acid-capped silver nanoparticles with exploration of photocatalytic and antibacterial activities. NEW J CHEM 2020. [DOI: 10.1039/d0nj02796k] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
C-18 fatty acid-coated silver nanoparticles are synthesized using a facile and worthwhile chemical method.
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Affiliation(s)
- Shazia Hasan
- Department of Chemistry
- Aligarh Muslim University
- Aligarh 202002
- India
| | - Abdul Rauf
- Department of Chemistry
- Aligarh Muslim University
- Aligarh 202002
- India
| | - Samia Saleem
- Department of Agricultural Microbiology
- Aligarh Muslim University
- Aligarh 202002
- India
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13
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Ángel AYB, Bragança EF, Alberto EE. Dichlorination of Alkenes Using 1,3‐Dichloro‐5,5‐Dimethylhydantoin and ZnCl
2. ChemistrySelect 2019. [DOI: 10.1002/slct.201902568] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Alix Y. Bastidas Ángel
- Department of ChemistryFederal University of Minas Gerais, Belo Horizonte 31.270-901 MG Brazil
| | - Emanuella F. Bragança
- Department of ChemistryFederal University of Minas Gerais, Belo Horizonte 31.270-901 MG Brazil
| | - Eduardo E. Alberto
- Department of ChemistryFederal University of Minas Gerais, Belo Horizonte 31.270-901 MG Brazil
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14
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15
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Van Kerrebroeck R, Naert P, Heugebaert TSA, D'hooghe M, Stevens CV. Electrophilic Bromination in Flow: A Safe and Sustainable Alternative to the Use of Molecular Bromine in Batch. Molecules 2019; 24:E2116. [PMID: 31167456 PMCID: PMC6600453 DOI: 10.3390/molecules24112116] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2019] [Revised: 05/30/2019] [Accepted: 06/01/2019] [Indexed: 11/26/2022] Open
Abstract
Bromination reactions are crucial in today's chemical industry since the versatility of the formed organobromides makes them suitable building blocks for numerous syntheses. However, the use of the toxic and highly reactive molecular bromine (Br2) makes these brominations very challenging and hazardous. We describe here a safe and straightforward protocol for bromination in continuous flow. The hazardous Br2 or KOBr is generated in situ by reacting an oxidant (NaOCl) with HBr or KBr, respectively, which is directly coupled to the bromination reaction and a quench of residual bromine. This protocol was demonstrated by polybrominating both alkenes and aromatic substrates in a wide variety of solvents, with yields ranging from 78% to 99%. The protocol can easily be adapted for the bromination of other substrates in an academic and industrial environment.
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Affiliation(s)
- Reinout Van Kerrebroeck
- SynBioC research Group, Department of Green Chemistry and Technology, Ghent University, Coupure Links 653, 9000 Ghent, Belgium.
| | - Pieter Naert
- SynBioC research Group, Department of Green Chemistry and Technology, Ghent University, Coupure Links 653, 9000 Ghent, Belgium.
| | - Thomas S A Heugebaert
- SynBioC research Group, Department of Green Chemistry and Technology, Ghent University, Coupure Links 653, 9000 Ghent, Belgium.
| | - Matthias D'hooghe
- SynBioC research Group, Department of Green Chemistry and Technology, Ghent University, Coupure Links 653, 9000 Ghent, Belgium.
| | - Christian V Stevens
- SynBioC research Group, Department of Green Chemistry and Technology, Ghent University, Coupure Links 653, 9000 Ghent, Belgium.
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16
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Yuanita E, Pranowo HD, Mustofa M, Swasono RT, Syahri J, Jumina J. Synthesis, Characterization and Molecular Docking of Chloro-substituted Hydroxyxanthone Derivatives. CHEMISTRY JOURNAL OF MOLDOVA 2019. [DOI: 10.19261/cjm.2018.520] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
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17
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Ganguly NC, Datta M. Mild and Eco-friendly oXidative Cleavage of 1,3-dithianes and 1,3-dithiolanes with a Catalytic Amount of Hydrobromic Acid and Hydrogen Peroxide: Synergetic Effect of Bromonium Ion Equivalent and Hydrogen Peroxide. JOURNAL OF CHEMICAL RESEARCH 2019. [DOI: 10.3184/0308234054213555] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
A combination of a catalytic amount hydrobromic acid (10 mol%) and an excess of hydrogen peroxide is found to be an effective reagent for expeditious regeneration of carbonyl compounds from their 1,3-dithiane as well as 1,3–dithiolane derivatives. Absence of nuclear bromination of aromatic substrates and overoxidation of regenerated oxidation–prone aromatic aldehydes, compatibility with a number of functional groups, such as amino, hydroxy, acetoxy, methylenedioxy and useful phenol-protecting allyl, benzyl and TBDMS ethers, benzoate esters and amino-protecting Cbz carbamate and N-benzylamine (NHBn) moieties are the advantageous features of this protocol.
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Affiliation(s)
- Nemai C. Ganguly
- Department of Chemistry, University of Kalyani, Kalyani – 741 235, India
| | - Mrityunjoy Datta
- Department of Chemistry, University of Kalyani, Kalyani – 741 235, India
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18
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Ying T, Bao W, Zhang Y. Bromination of carbon–carbon double bonds involving oxidation of NaBr in an ionic liquid. JOURNAL OF CHEMICAL RESEARCH 2019. [DOI: 10.3184/0308234043431393] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Bromination of alkenes has been conducted in a room temperature ionic liquid {[bmim]+ CCl3COO– (1–butyl–3–methylimidazolium trichloroacetate)} involving the oxidation of NaBr by hydrogen peroxide with no catalyst. Comparatively fast reactions, good yields and the atom economic nature make this environmentally benign reaction an appealing procedure for alkene and alkyne bromination.
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Affiliation(s)
- Taokei Ying
- Zhejiang Normal University, College of Chemistry and life Science, Jinghua, Zhejiang 321004, P. R. China
| | - Weiliang Bao
- Zhejiang University, Xixi Campus, Department of Chemistry, Hangzhou, Zhejiang 310028, P. R. China
| | - Yongmin Zhang
- Zhejiang University, Xixi Campus, Department of Chemistry, Hangzhou, Zhejiang 310028, P. R. China
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19
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Lakouraj MM, Tajbakhsh M, Mokhtary M. Poly(vinylpyrrolidone)-bromine Complex; a Mild and Efficient Reagent for Selective Bromination of Alkenes and Oxidation of Alcohols. JOURNAL OF CHEMICAL RESEARCH 2019. [DOI: 10.3184/030823405774663246] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Poly(vinylpyrrolidone)-bromine complex (PVP–Br2) is easily prepared and used as a mild and convenient reagent for selective bromination of alkenes and at the position α-hydrogen of active carbonyl compounds. Selective oxidation of benzylic alcohols in the presence of aliphatic alcohols were also achieved at room temperature.
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Affiliation(s)
| | - Mahmood Tajbakhsh
- Department of Chemistry, Mazandaran University, Babolsar, 47415, Iran
| | - Masoud Mokhtary
- Department of Chemistry, Mazandaran University, Babolsar, 47415, Iran
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20
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Narender N, Mohan KK, Kulkarni S, Raghavan K. Mild and Regioselective Oxidative Bromination of Aromatic Compounds Using Ammonium Bromide and Oxone®. JOURNAL OF CHEMICAL RESEARCH 2019. [DOI: 10.3184/030823403322597775] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The selective mono-bromination of various activated aromatic compounds is reported using in situ generated bromine from NH4Br as a bromine source and oxone® as an oxidant for the first time.
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Affiliation(s)
- N. Narender
- Catalysis Group, Indian Institute of Chemical Technology, Hyderabad – 500 007, India
| | - K.V.V. Krishna Mohan
- Catalysis Group, Indian Institute of Chemical Technology, Hyderabad – 500 007, India
| | - S.J. Kulkarni
- Catalysis Group, Indian Institute of Chemical Technology, Hyderabad – 500 007, India
| | - K.V. Raghavan
- Catalysis Group, Indian Institute of Chemical Technology, Hyderabad – 500 007, India
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21
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Tomizuka A, Moriyama K. Bromoetherification of Alkenyl Alcohols by Aerobic Oxidation of Bromide: Asymmetric Synthesis of 2‐Bromomethyl 5‐Substituted Tetrahydrofurans. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201801557] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Akihiko Tomizuka
- Department of Chemistry, Graduate School of Science, and Molecular Chirality Research CenterChiba University 1-33 Yayoi-cho, Inage-ku Chiba 263-8522 Japan
| | - Katsuhiko Moriyama
- Department of Chemistry, Graduate School of Science, and Molecular Chirality Research CenterChiba University 1-33 Yayoi-cho, Inage-ku Chiba 263-8522 Japan
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22
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Zhou Y, Chen X, Yin D, Ling Y, Wang S, Zhang X, Rao W. Gold-Catalyzed Cycloisomerization-Halogenation Sequence of 1,3-Enyne Esters with NXS: Efficient Synthesis of 5-Bromo/Iodo Cyclopentenones. European J Org Chem 2019. [DOI: 10.1002/ejoc.201801530] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Yuanyuan Zhou
- Jiangsu Key Lab of Biomass-based Green Fuels and Chemicals; College of Chemical Engineering; Nanjing Forestry University; 210037 Nanjing P. R. China
| | - Xianxiao Chen
- Jiangsu Key Lab of Biomass-based Green Fuels and Chemicals; College of Chemical Engineering; Nanjing Forestry University; 210037 Nanjing P. R. China
| | - Dongliang Yin
- Jiangsu Key Lab of Biomass-based Green Fuels and Chemicals; College of Chemical Engineering; Nanjing Forestry University; 210037 Nanjing P. R. China
| | - Yuan Ling
- Jiangsu Key Lab of Biomass-based Green Fuels and Chemicals; College of Chemical Engineering; Nanjing Forestry University; 210037 Nanjing P. R. China
| | - Shifa Wang
- Jiangsu Key Lab of Biomass-based Green Fuels and Chemicals; College of Chemical Engineering; Nanjing Forestry University; 210037 Nanjing P. R. China
| | - Xiaoxiang Zhang
- Jiangsu Key Lab of Biomass-based Green Fuels and Chemicals; College of Chemical Engineering; Nanjing Forestry University; 210037 Nanjing P. R. China
| | - Weidong Rao
- Jiangsu Key Lab of Biomass-based Green Fuels and Chemicals; College of Chemical Engineering; Nanjing Forestry University; 210037 Nanjing P. R. China
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23
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Sorabad GS, Maddani MR. Metal-free, green and efficient oxidative α halogenation of enaminones by halo acid and DMSO. NEW J CHEM 2019. [DOI: 10.1039/c8nj06412a] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Metal free oxidative halogenation of N-aryl enaminones has been demonstrated using a DMSO–halo acid combination under mild reaction conditions. The present method is a straightforward approach and is also applied for the synthesis of chromenone derivatives in excellent yields.
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Affiliation(s)
- Ganesh Shivayogappa Sorabad
- Department of Post-Graduate Studies and Research in Chemistry
- Mangalore University
- Mangalagangothri-574199
- India
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24
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Kajorinne JK, Steers JC, Merchant ME, MacKinnon CD. Green halogenation reactions for (hetero)aromatic ring systems in alcohol, water, or no solvent. CAN J CHEM 2018. [DOI: 10.1139/cjc-2018-0259] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
A new method of brominating aromatic and heteroaromatic ring systems is investigated. The combination of hydrobromic acid as the halogen source, hydrogen peroxide as the oxidant, and ethanol, water, or no solvent are evaluated as greener conditions than those that have been previously published. The new conditions give high yields and good regioselectivity for a variety of substrates when the ring is activated by electron-donating groups or heteroatoms. Phenols, anisole, thiophenes, and pyrrole give comparable or superior results when compared to a traditional bromination by N-bromosuccinimide in tetrahydrofuran. Other nitrogen-containing heterocycles do not react under the conditions because they are protonated and hence deactivated; similarly, substrates with electron-withdrawing groups are not brominated. The reaction is very tolerant of a variety of functional groups.
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Affiliation(s)
- Jessie K. Kajorinne
- Department of Chemistry, Lakehead University, 955 Oliver Road, Thunder Bay, ON P7B 5E1 Canada
- Department of Chemistry, Lakehead University, 955 Oliver Road, Thunder Bay, ON P7B 5E1 Canada
| | - Jennifer C.M. Steers
- Department of Chemistry, Lakehead University, 955 Oliver Road, Thunder Bay, ON P7B 5E1 Canada
- Department of Chemistry, Lakehead University, 955 Oliver Road, Thunder Bay, ON P7B 5E1 Canada
| | - Marnie E. Merchant
- Department of Chemistry, Lakehead University, 955 Oliver Road, Thunder Bay, ON P7B 5E1 Canada
- Department of Chemistry, Lakehead University, 955 Oliver Road, Thunder Bay, ON P7B 5E1 Canada
| | - Craig D. MacKinnon
- Department of Chemistry, Lakehead University, 955 Oliver Road, Thunder Bay, ON P7B 5E1 Canada
- Department of Chemistry, Lakehead University, 955 Oliver Road, Thunder Bay, ON P7B 5E1 Canada
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25
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Nikishin GI, Kapustina NI, Sokova LL, Bityukov OV, Terent'ev AO. A H2O2/HBr system – several directions but one choice: oxidation–bromination of secondary alcohols into mono- or dibromo ketones. RSC Adv 2018; 8:28632-28636. [PMID: 35548402 PMCID: PMC9084404 DOI: 10.1039/c8ra04885a] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2018] [Accepted: 08/06/2018] [Indexed: 11/21/2022] Open
Abstract
Convenience of application, multifaceted reactivity, and compliance with green chemistry principles: H2O2–HBr(aq) system for preparation of bromo ketones with yields up to 91%.
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Affiliation(s)
- Gennady I. Nikishin
- N. D. Zelinsky Institute of Organic Chemistry of the Russian Academy of Sciences
- Moscow 119991
- Russian Federation
| | - Nadezhda I. Kapustina
- N. D. Zelinsky Institute of Organic Chemistry of the Russian Academy of Sciences
- Moscow 119991
- Russian Federation
| | - Liubov L. Sokova
- N. D. Zelinsky Institute of Organic Chemistry of the Russian Academy of Sciences
- Moscow 119991
- Russian Federation
| | - Oleg V. Bityukov
- N. D. Zelinsky Institute of Organic Chemistry of the Russian Academy of Sciences
- Moscow 119991
- Russian Federation
| | - Alexander O. Terent'ev
- N. D. Zelinsky Institute of Organic Chemistry of the Russian Academy of Sciences
- Moscow 119991
- Russian Federation
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26
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Abstract
Activation of H2O2 by LiBr and AcOH is efficiently achieved for dibromination of alkenes in high yields and selectivity.
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Affiliation(s)
| | - Eduardo E. Alberto
- Department of Chemistry
- Federal University of Minas Gerais
- Belo Horizonte
- Brazil
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27
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Sengupta G, Pandey P, De S, Ramapanicker R, Bera JK. A bromo-capped diruthenium(i,i) N-heterocyclic carbene compound for in situ bromine generation with NBS: catalytic olefin aziridination reactions. Dalton Trans 2018; 47:11917-11924. [DOI: 10.1039/c8dt01851k] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
A bromo-capped diruthenium(i,i) complex activates NBS to produce bromine in situ, and thus catalyses bromine-mediated olefin aziridination reactions.
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Affiliation(s)
- Gargi Sengupta
- Department of Chemistry
- Indian Institute of Technology Kanpur
- Kanpur 208016
- India
| | - Pragati Pandey
- Department of Chemistry
- Indian Institute of Technology Kanpur
- Kanpur 208016
- India
| | - Subhabrata De
- Department of Chemistry
- Indian Institute of Technology Kanpur
- Kanpur 208016
- India
| | - Ramesh Ramapanicker
- Department of Chemistry
- Indian Institute of Technology Kanpur
- Kanpur 208016
- India
- Center for Environmental Sciences and Engineering
| | - Jitendra K. Bera
- Department of Chemistry
- Indian Institute of Technology Kanpur
- Kanpur 208016
- India
- Center for Environmental Sciences and Engineering
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28
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Wang H, Wang Z, Wang YL, Zhou RR, Wu GC, Yin SY, Yan X, Wang B. N-Bromosuccinimide (NBS)-Catalyzed C-H Bond Functionalization: An Annulation of Alkynes with Electron Withdrawing Group (EWG)-Substituted Acetyl Indoles for the Synthesis of Carbazoles. Org Lett 2017; 19:6140-6143. [PMID: 29094599 DOI: 10.1021/acs.orglett.7b03021] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
An N-bromosuccinimide-catalyzed intermolecular annulation of acetyl indoles with alkynes was developed, allowing for regioselective formation of valuable carbazoles through direct C-H bond functionalization. The readily available catalyst, wide substrate scope, gram scale synthesis, and mild conditions make this method practical. Mechanistic investigations indicate that the bromination of acetyl indole takes place to generate a bromide intermediate, followed by coupling with an alkyne and intramolecular cycloaromatization to furnish carbazole products.
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Affiliation(s)
- Han Wang
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy and Tianjin Key Laboratory of Molecular Drug Research, Nankai University , Haihe Education Park, 38 Tongyan Road, Tianjin 300353, People's Republic of China
| | - Zhen Wang
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy and Tianjin Key Laboratory of Molecular Drug Research, Nankai University , Haihe Education Park, 38 Tongyan Road, Tianjin 300353, People's Republic of China
| | - Yi-Long Wang
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy and Tianjin Key Laboratory of Molecular Drug Research, Nankai University , Haihe Education Park, 38 Tongyan Road, Tianjin 300353, People's Republic of China
| | - Rui-Rui Zhou
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy and Tianjin Key Laboratory of Molecular Drug Research, Nankai University , Haihe Education Park, 38 Tongyan Road, Tianjin 300353, People's Republic of China
| | - Guang-Chuan Wu
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy and Tianjin Key Laboratory of Molecular Drug Research, Nankai University , Haihe Education Park, 38 Tongyan Road, Tianjin 300353, People's Republic of China
| | - Si-Yao Yin
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy and Tianjin Key Laboratory of Molecular Drug Research, Nankai University , Haihe Education Park, 38 Tongyan Road, Tianjin 300353, People's Republic of China
| | - Xu Yan
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy and Tianjin Key Laboratory of Molecular Drug Research, Nankai University , Haihe Education Park, 38 Tongyan Road, Tianjin 300353, People's Republic of China
| | - Bin Wang
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy and Tianjin Key Laboratory of Molecular Drug Research, Nankai University , Haihe Education Park, 38 Tongyan Road, Tianjin 300353, People's Republic of China
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29
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Lima HHLB, da Silva GR, Pena JM, Cella R. Ultrasound-Assisted Bromination of Aromatic Rings Using NaBr/H2
O2
System. ChemistrySelect 2017. [DOI: 10.1002/slct.201702023] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Herich H. L. B. Lima
- Department of Chemical Engineering; Centro Universitário FEI; Av. Humberto de A. Castelo Branco, 3972 São Bernardo do Campo - SP - Brazil 09850-901
| | - Gabriel Rufino da Silva
- Department of Chemical Engineering; Centro Universitário FEI; Av. Humberto de A. Castelo Branco, 3972 São Bernardo do Campo - SP - Brazil 09850-901
| | - Jesus M. Pena
- Department of Chemical Engineering; Centro Universitário FEI; Av. Humberto de A. Castelo Branco, 3972 São Bernardo do Campo - SP - Brazil 09850-901
| | - Rodrigo Cella
- Department of Chemical Engineering; Centro Universitário FEI; Av. Humberto de A. Castelo Branco, 3972 São Bernardo do Campo - SP - Brazil 09850-901
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30
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Huang B, Zhao Y, Yang C, Gao Y, Xia W. Combining Eosin Y with Selectfluor: A Regioselective Brominating System for Para-Bromination of Aniline Derivatives. Org Lett 2017; 19:3799-3802. [DOI: 10.1021/acs.orglett.7b01427] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Binbin Huang
- State
Key Lab of Urban Water Resource and Environment, School of Chemistry
and Chemical Engineering, Harbin Institute of Technology (Shenzhen), Shenzhen 518055, China
| | - Yating Zhao
- State
Key Lab of Urban Water Resource and Environment, School of Chemistry
and Chemical Engineering, Harbin Institute of Technology (Shenzhen), Shenzhen 518055, China
| | - Chao Yang
- State
Key Lab of Urban Water Resource and Environment, School of Chemistry
and Chemical Engineering, Harbin Institute of Technology (Shenzhen), Shenzhen 518055, China
| | - Yuan Gao
- School
of Chemistry and Chemical Engineering, Yantai University, 30 Qingquan
Road, Laishan District, Yantai 264005, China
| | - Wujiong Xia
- State
Key Lab of Urban Water Resource and Environment, School of Chemistry
and Chemical Engineering, Harbin Institute of Technology (Shenzhen), Shenzhen 518055, China
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31
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Stoykova B, Chochkova M, Ivanova G, Markova N, Enchev V, Tsvetkova I, Najdenski H, Štícha M, Milkova T. Ultrasound-assisted green bromination of N-cinnamoyl amino acid amides – Structural characterization and antimicrobial evaluation. J Mol Struct 2017. [DOI: 10.1016/j.molstruc.2017.01.056] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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32
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Alom NE, Wu F, Li W. One-Pot Strategy for Thiazoline Synthesis from Alkenes and Thioamides. Org Lett 2017; 19:930-933. [DOI: 10.1021/acs.orglett.7b00079] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Nur-E Alom
- Department of Chemistry and
Biochemistry, School of Green Chemistry and Engineering, The University of Toledo, 2801 West Bancroft Street, Toledo, Ohio 43606, United States
| | - Fan Wu
- Department of Chemistry and
Biochemistry, School of Green Chemistry and Engineering, The University of Toledo, 2801 West Bancroft Street, Toledo, Ohio 43606, United States
| | - Wei Li
- Department of Chemistry and
Biochemistry, School of Green Chemistry and Engineering, The University of Toledo, 2801 West Bancroft Street, Toledo, Ohio 43606, United States
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33
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Xin H, Yang S, An B, An Z. Selective water-based oxychlorination of phenol with hydrogen peroxide catalyzed by manganous sulfate. RSC Adv 2017. [DOI: 10.1039/c7ra00319f] [Citation(s) in RCA: 7] [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, VOC free method for the synthesis of 2,4-dichlorophenol, with simple product separation and a recyclable catalyst is developed.
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Affiliation(s)
- Hongchuan Xin
- Key Laboratory of Biobased Materials
- Qingdao Institute of Bioenergy and Bioprocess Technology
- Chinese Academy of Sciences
- Qingdao 266101
- China
| | - Shilei Yang
- School of Chemical Engineering
- University of Science and Technology Liaoning
- Anshan 114051
- China
| | - Baigang An
- School of Chemical Engineering
- University of Science and Technology Liaoning
- Anshan 114051
- China
| | - Zengjian An
- Key Laboratory of Biobased Materials
- Qingdao Institute of Bioenergy and Bioprocess Technology
- Chinese Academy of Sciences
- Qingdao 266101
- China
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34
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Saikia I, Borah AJ, Phukan P. Use of Bromine and Bromo-Organic Compounds in Organic Synthesis. Chem Rev 2016; 116:6837-7042. [PMID: 27199233 DOI: 10.1021/acs.chemrev.5b00400] [Citation(s) in RCA: 281] [Impact Index Per Article: 35.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Bromination is one of the most important transformations in organic synthesis and can be carried out using bromine and many other bromo compounds. Use of molecular bromine in organic synthesis is well-known. However, due to the hazardous nature of bromine, enormous growth has been witnessed in the past several decades for the development of solid bromine carriers. This review outlines the use of bromine and different bromo-organic compounds in organic synthesis. The applications of bromine, a total of 107 bromo-organic compounds, 11 other brominating agents, and a few natural bromine sources were incorporated. The scope of these reagents for various organic transformations such as bromination, cohalogenation, oxidation, cyclization, ring-opening reactions, substitution, rearrangement, hydrolysis, catalysis, etc. has been described briefly to highlight important aspects of the bromo-organic compounds in organic synthesis.
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Affiliation(s)
| | - Arun Jyoti Borah
- Department of Chemistry, Gauahti University , Guwahati-781014, Assam, India
| | - Prodeep Phukan
- Department of Chemistry, Gauahti University , Guwahati-781014, Assam, India
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35
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Campbell ML, Rackley SA, Giambalvo LN, Whitehead DC. Vanadium (V) oxide mediated bromolactonization of alkenoic acids. Tetrahedron 2015. [DOI: 10.1016/j.tet.2015.04.029] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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36
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Mal K, Kaur A, Haque F, Das I. PPh3·HBr–DMSO: A Reagent System for Diverse Chemoselective Transformations. J Org Chem 2015; 80:6400-10. [DOI: 10.1021/acs.joc.5b00846] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Kanchan Mal
- Chemistry Division, CSIR-Indian Institute of Chemical Biology, 4, Raja S. C. Mullick Road, Jadavpur, Kolkata 700 032, India
| | - Amanpreet Kaur
- Chemistry Division, CSIR-Indian Institute of Chemical Biology, 4, Raja S. C. Mullick Road, Jadavpur, Kolkata 700 032, India
| | - Fazle Haque
- Chemistry Division, CSIR-Indian Institute of Chemical Biology, 4, Raja S. C. Mullick Road, Jadavpur, Kolkata 700 032, India
| | - Indrajit Das
- Chemistry Division, CSIR-Indian Institute of Chemical Biology, 4, Raja S. C. Mullick Road, Jadavpur, Kolkata 700 032, India
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37
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Gurry M, Sweeney M, McArdle P, Aldabbagh F. One-pot hydrogen peroxide and hydrohalic acid induced ring closure and selective aromatic halogenation to give new ring-fused benzimidazoles. Org Lett 2015; 17:2856-9. [PMID: 25988758 DOI: 10.1021/acs.orglett.5b01317] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A new series of selectively dichlorinated and dibrominated five- to eight-membered-ring [1,2-a]-fused benzimidazoles and [1,4]oxazino[4,3-a]benzimidazoles are synthesized in mostly high yields of >80% using the reaction of hydrogen peroxide and hydrohalic acid with commercially available o-cyclic amine substituted anilines. Domestic bleach with HCl can also be used for a one-pot ring closure and chlorination.
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Affiliation(s)
- Michael Gurry
- School of Chemistry, National University of Ireland Galway, University Road, Galway, Ireland
| | - Martin Sweeney
- School of Chemistry, National University of Ireland Galway, University Road, Galway, Ireland
| | - Patrick McArdle
- School of Chemistry, National University of Ireland Galway, University Road, Galway, Ireland
| | - Fawaz Aldabbagh
- School of Chemistry, National University of Ireland Galway, University Road, Galway, Ireland
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38
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Abstract
A simple and inexpensive methodology is reported for the conversion of alkenes to 1,2-dibromo alkanes via oxidative bromination using HBr paired with dimethyl sulfoxide, which serves as the oxidant as well as cosolvent. The substrate scope includes 21 olefins brominated in good to excellent yields. Three of six styrene derivatives yielded bromohydrins under the reaction conditions.
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Affiliation(s)
- Megha Karki
- Department of Chemistry, University of Idaho, Moscow, Idaho 83844, United States
| | - Jakob Magolan
- Department of Chemistry, University of Idaho, Moscow, Idaho 83844, United States
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39
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Çimen Y, Akyüz S, Türk H. Facile, efficient, and environmentally friendly α- and aromatic regioselective chlorination of toluene using KHSO5 and KCl under catalyst-free conditions. NEW J CHEM 2015. [DOI: 10.1039/c5nj00118h] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The nontoxic, green, safe, stable, and inexpensive reagents Oxone and KCl were employed in the non-catalyzed chlorination of toluene at room temperature.
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Affiliation(s)
- Yasemin Çimen
- Department of Chemistry
- Faculty of Sciences
- Anadolu University
- 26470 Eskişehir
- Turkey
| | - Seçkin Akyüz
- Department of Chemistry
- Faculty of Sciences
- Anadolu University
- 26470 Eskişehir
- Turkey
| | - Hayrettin Türk
- Department of Chemistry
- Faculty of Sciences
- Anadolu University
- 26470 Eskişehir
- Turkey
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40
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Xiang J, Yuan R, Wang R, Yi N, Lu L, Zou H, He W. Method for transforming alkynes into (E)-dibromoalkenes. J Org Chem 2014; 79:11378-82. [PMID: 25407142 DOI: 10.1021/jo501776b] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
The highly stereoselective bromination of alkynes has been realized by using copper(II) bromide as both the reacting partner and the catalyst, offering a generally efficient synthesis of (E)-dibromoalkenes. The reaction conditions are exceptionally mild, and a wide range of functional groups are well tolerated.
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Affiliation(s)
- Jiannan Xiang
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University , Changsha, 410082, P. R. China
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41
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Brücher O, Hartung J. Oxidative chlorination of 4-pentenols and other functionalized hydrocarbons. Tetrahedron 2014. [DOI: 10.1016/j.tet.2014.08.052] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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42
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Bromolactonization of alkenoic acids mediated by V2O5 via bromide to bromenium in situ oxidation. Tetrahedron Lett 2014. [DOI: 10.1016/j.tetlet.2014.08.071] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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43
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Kulangiappar K, Anbukulandainathan M, Raju T. Nuclear Versus Side-Chain Bromination of 4-Methoxy Toluene by an Electrochemical Method. SYNTHETIC COMMUN 2014. [DOI: 10.1080/00397911.2014.905599] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- K. Kulangiappar
- a Electroorganic Division, Council of Scientific and Industrial Research , Central Electrochemical Research Institute , Karaikudi , India
| | - M. Anbukulandainathan
- a Electroorganic Division, Council of Scientific and Industrial Research , Central Electrochemical Research Institute , Karaikudi , India
| | - T. Raju
- a Electroorganic Division, Council of Scientific and Industrial Research , Central Electrochemical Research Institute , Karaikudi , India
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44
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A new and efficient synthetic method for the herbicide carfentrazone-ethyl based on the Heck reaction. RESEARCH ON CHEMICAL INTERMEDIATES 2014. [DOI: 10.1007/s11164-014-1702-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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45
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Lai L, Wang H, Wu J. Facile assembly of 1-(4-haloisoquinolin-1-yl)ureas via a reaction of 2-alkynylbenzaldoxime, carbodiimide, and halide in water. Tetrahedron 2014. [DOI: 10.1016/j.tet.2014.02.026] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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46
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Wang Y, Wang J, Xiong Y, Liu ZQ. I2O5-mediated bromohydroxylation and dibromination of olefins using KBr in water. Tetrahedron Lett 2014. [DOI: 10.1016/j.tetlet.2014.03.064] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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47
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48
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Pathak S, Kundu A, Pramanik A. Monobromomalononitrile: an efficient regioselective mono brominating agent towards active methylene compounds and enamines under mild conditions. RSC Adv 2014. [DOI: 10.1039/c3ra46687f] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The potential of monobromomalononitrile (MBM) as a convenient source of cationic bromine in organic bromination reaction has been explored.
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Affiliation(s)
- Sudipta Pathak
- Department of Chemistry
- University of Calcutta
- Kolkata-700 009, India
| | - Ashis Kundu
- Department of Chemistry
- University of Calcutta
- Kolkata-700 009, India
| | - Animesh Pramanik
- Department of Chemistry
- University of Calcutta
- Kolkata-700 009, India
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49
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Ren J, Tong R. Convenient in situ generation of various dichlorinating agents from oxone and chloride: diastereoselective dichlorination of allylic and homoallylic alcohol derivatives. Org Biomol Chem 2013; 11:4312-5. [PMID: 23715511 DOI: 10.1039/c3ob40670a] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A safe and convenient protocol was developed for in situ generation of various dichlorinating agents (cf. Cl2, NCl3, Et4NCl3, ArICl2) from oxone and chloride. The synthetic utility of this protocol was demonstrated by diastereoselective dichlorination of a series of allylic and homoallylic alcohol derivatives with excellent yields and diastereoselectivity.
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Affiliation(s)
- Jingyun Ren
- Department of Chemistry, The Hong Kong University of Science and Technology, Clearwater Bay, Kowloon, Hong Kong, China
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50
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Kamada Y, Kitamura Y, Tanaka T, Yoshimitsu T. Dichlorination of olefins with NCS/Ph3P. Org Biomol Chem 2013; 11:1598-601. [DOI: 10.1039/c3ob27345h] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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