1
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Kuczmera TJ, Puylaert P, Nachtsheim BJ. Oxidation of benzylic alcohols to carbonyls using N-heterocyclic stabilized λ 3-iodanes. Beilstein J Org Chem 2024; 20:1677-1683. [PMID: 39076300 PMCID: PMC11285054 DOI: 10.3762/bjoc.20.149] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2024] [Accepted: 07/12/2024] [Indexed: 07/31/2024] Open
Abstract
We present N-heterocycle-stabilized iodanes (NHIs) as suitable reagents for the mild oxidation of activated alcohols. Two different protocols, both involving activation by chloride additives, were used to synthesize benzylic ketones and aldehydes without overoxidation in up to 97% yield. Based on MS experiments an activated hydroxy(chloro)iodane is proposed as the reactive intermediate.
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Affiliation(s)
- Thomas J Kuczmera
- Institute for Organic and Analytical Chemistry, University of Bremen, Bremen, Germany
| | - Pim Puylaert
- Institute for Inorganic Chemistry and Crystallography, University of Bremen, Bremen, Germany
| | - Boris J Nachtsheim
- Institute for Organic and Analytical Chemistry, University of Bremen, Bremen, Germany
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2
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Maioli C, Amin HI, Chianese G, Minassi A, Reddell PW, Gaeta S, Taglialatela-Scafati O, Appendino G. Novel Skeletal Rearrangements of the Tigliane Diterpenoid Core. JOURNAL OF NATURAL PRODUCTS 2023; 86:2685-2690. [PMID: 37991924 PMCID: PMC10749460 DOI: 10.1021/acs.jnatprod.3c00834] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/08/2023] [Revised: 11/02/2023] [Accepted: 11/08/2023] [Indexed: 11/24/2023]
Abstract
To investigate the role of the secondary 5-hydroxy group in the activity of the anticancer drug tigilanol tiglate (2b) (Stelfonta), oxidation of this epoxytigliane diterpenoid from the Australian rainforest plant Fontainea picrosperma was attempted. Eventually, 5-dehydrotigilanol tiglate (3a) proved too unstable to be characterized in terms of biological activity and, therefore, was not a suitable tool compound for bioactivity studies. On the other hand, a series of remarkable skeletal rearrangements associated with the presence of a 5-keto group were discovered during its synthesis, including a dismutative ring expansion of ring A and a mechanistically unprecedented dyotropic substituent swap around the C-4/C-10 bond. Taken together, these observations highlight the propensity of the α-hydroxy-β-diketone system to trigger complex skeletal rearrangements and pave the way to new areas of the natural products chemical space.
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Affiliation(s)
- Chiara Maioli
- Dipartimento
di Scienze del Farmaco, Università
degli Studi del Piemonte Orientale Amedeo Avogadro, Largo Donegani 2, 28100 Novara, Italy
| | - Hawraz Ibrahim
M. Amin
- Dipartimento
di Scienze del Farmaco, Università
degli Studi del Piemonte Orientale Amedeo Avogadro, Largo Donegani 2, 28100 Novara, Italy
| | - Giuseppina Chianese
- Dipartimento
di Farmacia, Università di Napoli
Federico II, Via Montesano
49, 80131 Napoli, Italy
| | - Alberto Minassi
- Dipartimento
di Scienze del Farmaco, Università
degli Studi del Piemonte Orientale Amedeo Avogadro, Largo Donegani 2, 28100 Novara, Italy
| | - Paul W. Reddell
- QBiotics
Group Limited, 165, Moggill
Road, 4068, Taringa, Brisbane, QLD, Australia
| | - Simone Gaeta
- Dipartimento
di Scienze del Farmaco, Università
degli Studi del Piemonte Orientale Amedeo Avogadro, Largo Donegani 2, 28100 Novara, Italy
- QBiotics
Group Limited, 165, Moggill
Road, 4068, Taringa, Brisbane, QLD, Australia
| | | | - Giovanni Appendino
- Dipartimento
di Scienze del Farmaco, Università
degli Studi del Piemonte Orientale Amedeo Avogadro, Largo Donegani 2, 28100 Novara, Italy
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3
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Kubota R, Fujimoto I. Synthesis, Characterization, and Potential Application of Cyclodextrin-Based Polyrotaxanes for Reinforced Atelocollagen Threads. Polymers (Basel) 2023; 15:3325. [PMID: 37571219 PMCID: PMC10422439 DOI: 10.3390/polym15153325] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Revised: 07/18/2023] [Accepted: 07/24/2023] [Indexed: 08/13/2023] Open
Abstract
Preparing strong and flexible atelocollagen-based materials for biomedical applications is still a challenging task. To address this challenge, this study describes the synthesis and characterization of water-soluble polyrotaxanes (PRs) with different coverage ratios and molecular weights of axle polymers, and their potential applications for PR-reinforced atelocollagen threads (PRATs). A novel method was established for the syntheses of PRs with relatively low coverage ratio at the sub-gram scale, in which the aldehyde groups were employed as crosslinking sites for preparing the PRATs via reductive amination. The aldehyde groups were successfully quantified by 1H nuclear magnetic resonance spectroscopy using 1,1-dimethylhydrazine as an aldehyde marker. Fourier-transform infrared and thermogravimetric analysis measurements supported the characterization of the PRs. Interestingly, tensile testing demonstrated that coverage ratio affected the mechanical properties of the PRATs more strongly than molecular weight. The insights obtained in this study would facilitate the development of soft materials based on atelocollagens and PRs.
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Affiliation(s)
- Riku Kubota
- Koken Research Institute, Koken Co., Ltd., 1-18-36 Takarada, Tsuruoka-shi, Yamagata 997-0011, Japan
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4
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Kleoff M, Voßnacker P, Riedel S. The Rise of Trichlorides Enabling an Improved Chlorine Technology. Angew Chem Int Ed Engl 2023; 62:e202216586. [PMID: 36622244 DOI: 10.1002/anie.202216586] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2022] [Revised: 01/06/2023] [Accepted: 01/09/2023] [Indexed: 01/10/2023]
Abstract
Chlorine plays a central role for the industrial production of numerous materials with global relevance. More recently, polychlorides have been evolved from an area of academic interest to a research topic with enormous industrial potential. In this minireview, the value of trichlorides for chlorine storage and chlorination reactions are outlined. Particularly, the inexpensive ionic liquid [NEt3 Me][Cl3 ] shows a similar and sometimes even advantageous reactivity compared to chlorine gas, while offering a superior safety profile. Used as a chlorine storage, [NEt3 Me][Cl3 ] could help to overcome the current limitations of storing and transporting chlorine in larger quantities. Thus, trichlorides could become a key technique for the flexibilization of the chlorine production enabling an exploitation of renewable, yet fluctuating, electrical energy. As the loaded storage, [NEt3 Me][Cl3 ], is a proven chlorination reagent, it could directly be employed for downstream processes, paving the path to a more practical and safer chlorine industry.
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Affiliation(s)
- Merlin Kleoff
- Fachbereich Biologie, Chemie, Pharmazie, Institut für Chemie und Biochemie-Anorganische Chemie, Fabeckstr. 34/36, 14195, Berlin, Germany
| | - Patrick Voßnacker
- Fachbereich Biologie, Chemie, Pharmazie, Institut für Chemie und Biochemie-Anorganische Chemie, Fabeckstr. 34/36, 14195, Berlin, Germany
| | - Sebastian Riedel
- Fachbereich Biologie, Chemie, Pharmazie, Institut für Chemie und Biochemie-Anorganische Chemie, Fabeckstr. 34/36, 14195, Berlin, Germany
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5
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He C, Ma F, Zhang W, Tong R. Reinvestigating FeBr 3-Catalyzed Alcohol Oxidation with H 2O 2: Is a High-Valent Iron Species (HIS) or a Reactive Brominating Species (RBS) Responsible for Alcohol Oxidation? Org Lett 2022; 24:3499-3503. [PMID: 35522028 DOI: 10.1021/acs.orglett.2c01133] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
In 2003, Martı́n et al. reported a green alcohol oxidation with FeBr3(cat.)/H2O2 and proposed a high-valent iron species (HIS) responsible for the alcohol oxidation. Reinvestigating this FeBr3(cat.)/H2O2 method led us to propose a different mechanism that involves a reactive brominating species (RBS) for the oxidation of alcohols. The evidence to support this RBS-based mechanism includes (1) our recent findings of in situ-generated RBS from the related FeBr2/H2O2 or CeBr3/H2O2 systems, (2) our results of a series of controlled experiments, and (3) some related RBS-based precedents (NBS, NBA, or Br2) showing similar high oxidation selectivity of secondary over primary alcohols. These studies enable us to discover that a RBS from CeBr3/H2O2 is much more efficient for the oxidation of secondary and benzylic alcohols, which represents a new green protocol for selective oxidation of alcohols to carbonyls.
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Affiliation(s)
- Chenxi He
- Department of Chemistry and Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), The Hong Kong University of Science and Technology, Clearwater Bay, Kowloon, 999077 Hong Kong, China
| | - Foqing Ma
- Department of Chemistry and Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), The Hong Kong University of Science and Technology, Clearwater Bay, Kowloon, 999077 Hong Kong, China
| | - Wei Zhang
- Department of Chemistry and Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), The Hong Kong University of Science and Technology, Clearwater Bay, Kowloon, 999077 Hong Kong, China
| | - Rongbiao Tong
- Department of Chemistry and Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), The Hong Kong University of Science and Technology, Clearwater Bay, Kowloon, 999077 Hong Kong, China
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6
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Tedder ML, Dzeagu FO, Mason MM, Dixon DA, Carrick JD. Microwave-assisted C–H oxidation of methylpyridylheteroarenes via a Kornblum-Type reaction. Tetrahedron 2022. [DOI: 10.1016/j.tet.2022.132805] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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7
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Abednatanzi S, Najafi M, Gohari Derakhshandeh P, Van Der Voort P. Metal- and covalent organic frameworks as catalyst for organic transformation: Comparative overview and future perspectives. Coord Chem Rev 2022. [DOI: 10.1016/j.ccr.2021.214259] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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8
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Maity S, Gupta SK, Panda N. Iron(II)‐catalyzed Oxidative Coupling of Vicinal Diols and 2‐Amino‐1,4‐naphthoquinone for the Synthesis of Pyrrolonaphthoquinones and Furanonaphthoquinones. ASIAN J ORG CHEM 2021. [DOI: 10.1002/ajoc.202100580] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Sujit Maity
- Department of Chemistry National Institute of Technology, Rourkela Rourkela-769008, Odisha India
| | - Sandip Kumar Gupta
- Department of Chemistry National Institute of Technology, Rourkela Rourkela-769008, Odisha India
| | - Niranjan Panda
- Department of Chemistry National Institute of Technology, Rourkela Rourkela-769008, Odisha India
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9
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Liu XJ, Zhou SY, Xiao Y, Sun Q, Lu X, Li Y, Li JH. Photocatalytic Decarboxylative [3 + 2] and [4 + 2] Annulation of Enynals and γ,σ-Unsaturated N-(Acyloxy)phthalimides by NaI/PPh 3 Catalysis. Org Lett 2021; 23:7839-7844. [PMID: 34581593 DOI: 10.1021/acs.orglett.1c02858] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A practical and eco-friendly strategy for the radical-mediated decarboxylative [3 + 2] and [4 + 2] annulation of enynals and γ,σ-unsaturated N-(acyloxy)phthalimides through the photoactivation of an electron donor-acceptor (EDA) complex has been developed. A wide range of primary, secondary, and tertiary alkyl N-hydroxyphthalimide (NHP) esters can be used as suitable substrates for the synthesis of fused ketones without any transition-metal catalysts or oxidants. This protocol features a broad substrate scope, excellent selectivity, and clean reaction conditions.
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Affiliation(s)
- Xiao-Jie Liu
- Key Laboratory of Jiangxi Province for Persistent Pollutant Control and Resource Recycling, Nanchang Hangkong University, Nanchang 330063, China.,State Key Laboratory of Physical Chemistry of Solid Surface and Fujian Provincial Key Laboratory for Theoretical and Computational Chemistry, Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Sheng-Yun Zhou
- Key Laboratory of Jiangxi Province for Persistent Pollutant Control and Resource Recycling, Nanchang Hangkong University, Nanchang 330063, China.,State Key Laboratory of Physical Chemistry of Solid Surface and Fujian Provincial Key Laboratory for Theoretical and Computational Chemistry, Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Yuting Xiao
- Key Laboratory of Jiangxi Province for Persistent Pollutant Control and Resource Recycling, Nanchang Hangkong University, Nanchang 330063, China.,State Key Laboratory of Physical Chemistry of Solid Surface and Fujian Provincial Key Laboratory for Theoretical and Computational Chemistry, Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Qing Sun
- Key Laboratory of Jiangxi Province for Persistent Pollutant Control and Resource Recycling, Nanchang Hangkong University, Nanchang 330063, China.,State Key Laboratory of Physical Chemistry of Solid Surface and Fujian Provincial Key Laboratory for Theoretical and Computational Chemistry, Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Xin Lu
- Key Laboratory of Jiangxi Province for Persistent Pollutant Control and Resource Recycling, Nanchang Hangkong University, Nanchang 330063, China.,State Key Laboratory of Physical Chemistry of Solid Surface and Fujian Provincial Key Laboratory for Theoretical and Computational Chemistry, Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Yang Li
- Key Laboratory of Jiangxi Province for Persistent Pollutant Control and Resource Recycling, Nanchang Hangkong University, Nanchang 330063, China.,State Key Laboratory of Physical Chemistry of Solid Surface and Fujian Provincial Key Laboratory for Theoretical and Computational Chemistry, Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Jin-Heng Li
- Key Laboratory of Jiangxi Province for Persistent Pollutant Control and Resource Recycling, Nanchang Hangkong University, Nanchang 330063, China.,State Key Laboratory of Physical Chemistry of Solid Surface and Fujian Provincial Key Laboratory for Theoretical and Computational Chemistry, Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
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10
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11
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Sun Y, Ni L, Papadaki M, Jiao Z, Zhu W, Jiang J, Mashuga C, Mannan MS, Wilhite B. Reaction hazard and mechanism study of H2O2 oxidation of 2-butanol to methyl ethyl ketone using DSC, Phi-TEC II and GC-MS. J Loss Prev Process Ind 2020. [DOI: 10.1016/j.jlp.2020.104177] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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12
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Sulfur-mediated difunctionalization of internal and terminal alkynes for the synthesis of α-acetoxy ketones. Tetrahedron Lett 2020. [DOI: 10.1016/j.tetlet.2020.151707] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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13
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Huang BS, Lowary TL. β-Selective xylulofuranosylation via a conformationally-restricted glycosyl donor. Org Biomol Chem 2020; 18:2264-2273. [PMID: 32150203 DOI: 10.1039/d0ob00260g] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Reported is the first stereoselective method for β-xylulofuranosylation, which employs 3,4-O-xylylene-protected thioglycoside donors. For most acceptors, the best results were observed with a donor (8) that possesses both the xylylene group and a benzoate ester at O-1. To demonstrate its utility, the methodology was applied to the first synthesis of the pentasaccharide repeating unit from the lipopolysaccharide O-antigen of Yersinia enterocolitica serovars O:5/O:5,27, a structure containing two β-xylulofuranose residues.
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Affiliation(s)
- Bo-Shun Huang
- Department of Chemistry, University of Alberta, Edmonton, Alberta, CanadaT6G 2G2.
| | - Todd L Lowary
- Department of Chemistry, University of Alberta, Edmonton, Alberta, CanadaT6G 2G2.
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14
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Tang Y, Meador RIL, Malinchak CT, Harrison EE, McCaskey KA, Hempel MC, Funk TW. (Cyclopentadienone)iron-Catalyzed Transfer Dehydrogenation of Symmetrical and Unsymmetrical Diols to Lactones. J Org Chem 2020; 85:1823-1834. [PMID: 31880449 DOI: 10.1021/acs.joc.9b01884] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Air-stable iron carbonyl compounds bearing cyclopentadienone ligands with varying substitution were explored as catalysts in dehydrogenative diol lactonization reactions using acetone as both the solvent and hydrogen acceptor. Two catalysts with trimethylsilyl groups in the 2- and 5-positions, [2,5-(SiMe3)2-3,4-(CH2)4(η4-C4C═O)]Fe(CO)3 (1) and [2,5-(SiMe3)2-3,4-(CH2)3(η4-C4C═O)]Fe(CO)3 (2), were found to be the most active, with 2 being the most selective in the lactonization of diols containing both primary and secondary alcohols. Lactones containing five-, six-, and seven-membered rings were successfully synthesized, and no over-oxidations to carboxylic acids were detected. The lactonization of unsymmetrical diols containing two primary alcohols occurred with catalyst 1, but selectivity was low based on alcohol electronics and modest based on alcohol sterics. Evidence for a transfer dehydrogenation mechanism was found, and insight into the origin of selectivity in the lactonization of 1°/2° diols was obtained. Additionally, spectroscopic evidence for a trimethylamine-ligated iron species formed in solution during the reaction was discovered.
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Affiliation(s)
- Yidan Tang
- Department of Chemistry , Gettysburg College , Gettysburg , Pennsylvania 17325 , United States
| | - Rowan I L Meador
- Department of Chemistry , Gettysburg College , Gettysburg , Pennsylvania 17325 , United States
| | - Casina T Malinchak
- Department of Chemistry , Gettysburg College , Gettysburg , Pennsylvania 17325 , United States
| | - Emily E Harrison
- Department of Chemistry , Gettysburg College , Gettysburg , Pennsylvania 17325 , United States
| | - Kimberly A McCaskey
- Department of Chemistry , Gettysburg College , Gettysburg , Pennsylvania 17325 , United States
| | - Melanie C Hempel
- Department of Chemistry , Gettysburg College , Gettysburg , Pennsylvania 17325 , United States
| | - Timothy W Funk
- Department of Chemistry , Gettysburg College , Gettysburg , Pennsylvania 17325 , United States
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15
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Možina Š, Iskra J. Aerobic Oxidation of Secondary Alcohols with Nitric Acid and Iron(III) Chloride as Catalysts in Fluorinated Alcohol. J Org Chem 2019; 84:14579-14586. [PMID: 31642683 DOI: 10.1021/acs.joc.9b02109] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Fluorinated alcohols as solvents strongly influence and direct chemical reaction through donation of strong hydrogen bonds while being weak acceptors. We used 1,1,1,3,3,3-hexafluoro-2-propanol (HFIP) as the activating solvent for a nitric acid and FeCl3-catalyzed aerobic oxidation of secondary alcohols to ketones. Reaction proceeded selectively with excellent yields with no reaction on the primary alcohol group. Oxidation of benzyl alcohols proceeds selectively to aldehydes with only HNO3 as the catalyst, while reaction on tertiary alcohols proceeds through dehydration and dimerization. A mechanistic study showed in situ formation of NOCl that converts alcohol into alkyl nitrite, which in the presence of Fe3+ ions and fluorinated alcohol decomposes into ketone. The study indicates that iron(III) acts also as the single-electron transfer catalyst in regeneration of NOCl reactive species.
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Affiliation(s)
- Štefan Možina
- Centre of Excellence for Integrated Approaches in Chemistry and Biology of Proteins , Jamova Cesta 39 , 1000 Ljubljana , Slovenia.,Jožef Stefan International Postgraduate School , Jamova Cesta 39 , 1000 Ljubljana , Slovenia
| | - Jernej Iskra
- Department of Physical and Organic Chemistry , Jožef Stefan Institute , Jamova Cesta 39 , 1000 Ljubljana , Slovenia.,Faculty of Chemistry and Chemical Technology , University of Ljubljana , Večna Pot 113 , 1000 Ljubljana , Slovenia
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16
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Jung B, Lee JK, Kim J, Kang EK, Han SY, Lee HY, Choi IS. Synthetic Strategies for (-)-Cannabidiol and Its Structural Analogs. Chem Asian J 2019; 14:3749-3762. [PMID: 31529613 DOI: 10.1002/asia.201901179] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2019] [Revised: 09/13/2019] [Indexed: 12/14/2022]
Abstract
(-)-Cannabidiol ((-)-CBD), a non-psychoactive phytocannabinoid from Cannabis, and its structural analogs have received growing attention in recent years because of their potential therapeutic benefits, including neuroprotective, anti-epileptic, anti-inflammatory, anxiolytic, and anti-cancer properties. (-)-CBD and its analogs have been obtained mainly based on extraction from the natural source; however, the conventional extraction-based methods have some drawbacks, such as poor quality control along with purification difficulty. Chemical-synthetic strategies for (-)-CBD could tackle these issues, and, additionally, generate novel (-)-CBD analogs that exhibit advanced biological activities. This review concisely summarizes the historic and recent milestones in the synthetic strategies for (-)-CBD and its analogs.
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Affiliation(s)
| | - Jungkyu K Lee
- Department of Chemistry, Green-Nano Materials Research Center, Kyungpook National University, Daegu, 41566, Korea
| | - Jungnam Kim
- Department of Chemistry, KAIST, Daejeon, 34141, Korea
| | - Eunhye K Kang
- Department of Chemistry, KAIST, Daejeon, 34141, Korea
| | | | - Hee-Yoon Lee
- Department of Chemistry, KAIST, Daejeon, 34141, Korea
| | - Insung S Choi
- Department of Chemistry, KAIST, Daejeon, 34141, Korea
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17
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Borreguero AM, Rodríguez JF, Velencoso MM, Serrano Á, Ramos MJ. DMSO as solvent on the synthesis of flame-retardant polyether polyols. J Appl Polym Sci 2019. [DOI: 10.1002/app.47042] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Ana M. Borreguero
- Department of Chemical Engineering, Institute of Chemical and Environmental Technology (ITQUIMA); University of Castilla-La Mancha; Avd. Camilo José Cela 1A, Ciudad Real 13005 Spain
| | - Juan F. Rodríguez
- Department of Chemical Engineering, Institute of Chemical and Environmental Technology (ITQUIMA); University of Castilla-La Mancha; Avd. Camilo José Cela 1A, Ciudad Real 13005 Spain
| | - María M. Velencoso
- Department of Chemical Engineering, Institute of Chemical and Environmental Technology (ITQUIMA); University of Castilla-La Mancha; Avd. Camilo José Cela 1A, Ciudad Real 13005 Spain
| | - Ángel Serrano
- Department of Chemical Engineering, Institute of Chemical and Environmental Technology (ITQUIMA); University of Castilla-La Mancha; Avd. Camilo José Cela 1A, Ciudad Real 13005 Spain
| | - María J. Ramos
- Department of Chemical Engineering, Institute of Chemical and Environmental Technology (ITQUIMA); University of Castilla-La Mancha; Avd. Camilo José Cela 1A, Ciudad Real 13005 Spain
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18
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Ulgheri F, Spanu P. An Efficient Chemical Conversion of Glycerol to Dihydroxyacetone. ChemistrySelect 2018. [DOI: 10.1002/slct.201802841] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Fausta Ulgheri
- Istituto di Chimica Biomolecolare; Consiglio Nazionale delle Ricerche (CNR); Trav. La Crucca 3 - 07100 - Sassari (Italy)
| | - Pietro Spanu
- Istituto di Chimica Biomolecolare; Consiglio Nazionale delle Ricerche (CNR); Trav. La Crucca 3 - 07100 - Sassari (Italy)
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19
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Membrat R, Vasseur A, Martinez A, Giordano L, Nuel D. Phosphinous Acid Platinum Complex as Robust Catalyst for Oxidation: Comparison with Palladium and Mechanistic Investigations. European J Org Chem 2018. [DOI: 10.1002/ejoc.201801040] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Romain Membrat
- Aix-Marseille Univ, Centrale Marseille; CNRS; CNRS, iSm2 UMR 7313 13397 Marseille France
| | - Alexandre Vasseur
- Aix-Marseille Univ, Centrale Marseille; CNRS; CNRS, iSm2 UMR 7313 13397 Marseille France
| | - Alexandre Martinez
- Aix-Marseille Univ, Centrale Marseille; CNRS; CNRS, iSm2 UMR 7313 13397 Marseille France
| | - Laurent Giordano
- Aix-Marseille Univ, Centrale Marseille; CNRS; CNRS, iSm2 UMR 7313 13397 Marseille France
| | - Didier Nuel
- Aix-Marseille Univ, Centrale Marseille; CNRS; CNRS, iSm2 UMR 7313 13397 Marseille France
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20
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Malinowski Z, Fornal E, Warpas A, Nowak M. Synthesis of benzoquinoline derivatives from formyl naphthylamines via Friedländer annulation under metal-free conditions. MONATSHEFTE FUR CHEMIE 2018. [DOI: 10.1007/s00706-018-2268-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
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21
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Enhanced selective oxidation of trimethylolpropane to 2,2-bis(hydroxymethyl)butyric acid using Corynebacterium sp. ATCC 21245. Process Biochem 2017. [DOI: 10.1016/j.procbio.2017.08.007] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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22
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Dip I, Gethers C, Rice T, Straub TS. A rapid and convenient oxidation of secondary alcohols. Tetrahedron Lett 2017. [DOI: 10.1016/j.tetlet.2017.05.085] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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23
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24
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Barragan E, Bugarin A. π-Conjugated Triazenes: Intermediates That Undergo Oxidation and Substitution Reactions. J Org Chem 2017; 82:1499-1506. [DOI: 10.1021/acs.joc.6b02705] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Enrique Barragan
- Department of Chemistry and
Biochemistry, University of Texas, Arlington, Texas 76019, United States
| | - Alejandro Bugarin
- Department of Chemistry and
Biochemistry, University of Texas, Arlington, Texas 76019, United States
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25
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Carbó López M, Chavant PY, Molton F, Royal G, Blandin V. Chiral Nitroxide/Copper-Catalyzed Aerobic Oxidation of Alcohols: Atroposelective Oxidative Desymmetrization. ChemistrySelect 2017. [DOI: 10.1002/slct.201601993] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Marta Carbó López
- Univ. Grenoble Alpes; DCM UMR-5250; F-38000 Grenoble France
- CNRS; DCM UMR-5250; F-38000 Grenoble France
| | - Pierre Y. Chavant
- Univ. Grenoble Alpes; DCM UMR-5250; F-38000 Grenoble France
- CNRS; DCM UMR-5250; F-38000 Grenoble France
| | - Florian Molton
- Univ. Grenoble Alpes; DCM UMR-5250; F-38000 Grenoble France
- CNRS; DCM UMR-5250; F-38000 Grenoble France
| | - Guy Royal
- Univ. Grenoble Alpes; DCM UMR-5250; F-38000 Grenoble France
- CNRS; DCM UMR-5250; F-38000 Grenoble France
| | - Véronique Blandin
- Univ. Grenoble Alpes; DCM UMR-5250; F-38000 Grenoble France
- CNRS; DCM UMR-5250; F-38000 Grenoble France
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26
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Eftekhari-Sis B, Akbari M, Amini M, Ashouri F, Bagherzadeh M. Oxoperoxo tungsten(VI) complex immobilized on Schiff base-modified Fe3O4 magnetic nanoparticles as a heterogeneous catalyst for oxidation of alcohols with hydrogen peroxide. J COORD CHEM 2016. [DOI: 10.1080/00958972.2016.1251588] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
| | - Masoud Akbari
- Department of Chemistry, University of Maragheh, Maragheh, Iran
| | - Mojtaba Amini
- Department of Chemistry, University of Maragheh, Maragheh, Iran
| | - Fatemeh Ashouri
- Pharmaceutical Sciences Branch, Faculty of Pharmaceutical Chemistry, Department of Applied Chemistry, Islamic Azad University (IAUPS), Tehran, Iran
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27
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Sayed M, Dishisha T, Sayed WF, Salem WM, Temerk HA, Pyo SH. Selective oxidation of trimethylolpropane to 2,2-bis(hydroxymethyl)butyric acid using growing cells of Corynebacterium sp. ATCC 21245. J Biotechnol 2016; 221:62-9. [PMID: 26804932 DOI: 10.1016/j.jbiotec.2016.01.022] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2015] [Revised: 01/04/2016] [Accepted: 01/19/2016] [Indexed: 11/27/2022]
Abstract
Multifunctional chemicals including hydroxycarboxylic acids are gaining increasing interest due to their growing applications in the polymer industry. One approach for their production is a biological selective oxidation of polyols, which is difficult to achieve by conventional chemical catalysis. In the present study, trimethylolpropane (TMP), a trihydric alcohol, was subjected to selective oxidation using growing cells of Corynebacterium sp. ATCC 21245 as a biocatalyst and yielding the dihydroxy-monocarboxylic acid, 2,2-bis(hydroxymethyl)butyric acid (BHMB). The study revealed that co-substrates are crucial for this reaction. Among the different evaluated co-substrates, a mixture of glucose, xylose and acetate at a ratio of 5:5:2 was found optimum. The optimal conditions for biotransformation were pH 8, 1v/v/m airflow and 500rpm stirring speed. In batch mode of operation, 70.6% of 5g/l TMP was converted to BHMB in 10 days. For recovery of the product the adsorption pattern of BHMB to the anion exchange resin, Ambersep(®) 900 (OH(-)), was investigated in batch and column experiments giving maximum static and dynamic binding capacities of 135 and 144mg/g resin, respectively. BHMB was separated with 89.7% of recovery yield from the fermentation broth. The approach is applicable for selective oxidation of other highly branched polyols by biotransformation.
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Affiliation(s)
- Mahmoud Sayed
- Biotechnology, Department of Chemistry, Center for Chemistry and Chemical Engineering, Lund University, Box 124, SE-221 00 Lund, Sweden; Department of Botany, Faculty of Science, South Valley University, Qena, Egypt
| | - Tarek Dishisha
- Biotechnology, Department of Chemistry, Center for Chemistry and Chemical Engineering, Lund University, Box 124, SE-221 00 Lund, Sweden; Department of Microbiology and Immunology, Faculty of Pharmacy, Beni-Suef University, Egypt
| | - Waiel F Sayed
- Department of Botany, Faculty of Science, South Valley University, Qena, Egypt
| | - Wesam M Salem
- Department of Botany, Faculty of Science, South Valley University, Qena, Egypt
| | - Hanan A Temerk
- Department of Botany, Faculty of Science, South Valley University, Qena, Egypt
| | - Sang-Hyun Pyo
- Biotechnology, Department of Chemistry, Center for Chemistry and Chemical Engineering, Lund University, Box 124, SE-221 00 Lund, Sweden; Department of Food Bioscience and Technology, College of Life Sciences and Biotechnology, Korea University, Seoul 136-713, Republic of Korea.
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29
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Shibuya M. Development of Efficient Nitroxyl Radical-Catalyzed Oxidation Systems —Selective Oxidation from Primary Alcohols to Carboxylic Acids—. J SYN ORG CHEM JPN 2016. [DOI: 10.5059/yukigoseikyokaishi.74.965] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Masatoshi Shibuya
- Department of Basic Medicinal Sciences, Graduate School of Pharmaceutical Sciences, Nagoya University
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30
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Herter S, McKenna SM, Frazer AR, Leimkühler S, Carnell AJ, Turner NJ. Galactose Oxidase Variants for the Oxidation of Amino Alcohols in Enzyme Cascade Synthesis. ChemCatChem 2015. [DOI: 10.1002/cctc.201500218] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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31
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Christmann M, Hu J, Kitamura M, Stoltz B. Tetrahedron reports on organic chemistry. Tetrahedron 2015. [DOI: 10.1016/s0040-4020(15)00744-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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32
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Panwar V, Kumar P, Ray SS, Jain SL. Organic inorganic hybrid cobalt phthalocyanine/polyaniline as efficient catalyst for aerobic oxidation of alcohols in liquid phase. Tetrahedron Lett 2015. [DOI: 10.1016/j.tetlet.2015.05.003] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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33
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Güclü D, Rale M, Fessner WD. Modular Synthesis of Dihydroxyacetone Monoalkyl Ethers and Isosteric 1-Hydroxy-2-alkanones. European J Org Chem 2015. [DOI: 10.1002/ejoc.201403695] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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34
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Xu B, Lumb JP, Arndtsen BA. A TEMPO-Free Copper-Catalyzed Aerobic Oxidation of Alcohols. Angew Chem Int Ed Engl 2015; 54:4208-11. [DOI: 10.1002/anie.201411483] [Citation(s) in RCA: 106] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2014] [Indexed: 11/08/2022]
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35
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Xu B, Lumb JP, Arndtsen BA. A TEMPO-Free Copper-Catalyzed Aerobic Oxidation of Alcohols. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201411483] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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36
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Shaabani A, Hezarkhani Z, Badali E. Wool supported manganese dioxide nano-scale dispersion: a biopolymer based catalyst for the aerobic oxidation of organic compounds. RSC Adv 2015. [DOI: 10.1039/c5ra10522f] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A wool supported manganese dioxide nano-scale dispersion was synthesized by soaking wool in a potassium permanganate solution and characterized by X-ray diffraction (XRD), thermogravimetric analysis (TGA), and scanning electron microscopy (SEM).
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Affiliation(s)
- Ahmad Shaabani
- Faculty of Chemistry
- Shahid Beheshti University, G. C
- Tehran
- Iran
| | | | - Elham Badali
- Faculty of Chemistry
- Shahid Beheshti University, G. C
- Tehran
- Iran
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37
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Bayat A, Shakourian-Fard M, Ehyaei N, Mahmoodi Hashemi M. Silver nanoparticles supported on silica-coated ferrite as magnetic and reusable catalysts for oxidant-free alcohol dehydrogenation. RSC Adv 2015. [DOI: 10.1039/c4ra15498c] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The oxidant-free dehydrogenation of alcohols to corresponding carbonyl compounds has been performed by using silver (0) nanoparticles supported on silica-coated ferrite as an efficient and recyclable heterogeneous catalyst.
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Affiliation(s)
- Ahmad Bayat
- Department of Chemistry
- Sharif University of Technology
- Tehran
- Iran
| | | | - Nona Ehyaei
- Department of Chemistry
- Sharif University of Technology
- Tehran
- Iran
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38
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Doi R, Shibuya M, Murayama T, Yamamoto Y, Iwabuchi Y. Development of an Azanoradamantane-Type Nitroxyl Radical Catalyst for Class-Selective Oxidation of Alcohols. J Org Chem 2014; 80:401-13. [DOI: 10.1021/jo502426p] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Ryusuke Doi
- Department
of Organic Chemistry, Graduate School of Pharmaceutical Sciences, Tohoku University, Aobayama
6-3, Sendai 980-8578, Japan
| | - Masatoshi Shibuya
- Department
of Basic Medicinal Sciences, Graduate School of Pharmaceutical Sciences, Nagoya University, Chikusa, Nagoya 464-8601, Japan
| | - Tsukasa Murayama
- Department
of Basic Medicinal Sciences, Graduate School of Pharmaceutical Sciences, Nagoya University, Chikusa, Nagoya 464-8601, Japan
| | - Yoshihiko Yamamoto
- Department
of Basic Medicinal Sciences, Graduate School of Pharmaceutical Sciences, Nagoya University, Chikusa, Nagoya 464-8601, Japan
| | - Yoshiharu Iwabuchi
- Department
of Organic Chemistry, Graduate School of Pharmaceutical Sciences, Tohoku University, Aobayama
6-3, Sendai 980-8578, Japan
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39
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Azizi N, Khajeh M, Alipour M. Rapid and Selective Oxidation of Alcohols in Deep Eutectic Solvent. Ind Eng Chem Res 2014. [DOI: 10.1021/ie502019z] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Najmedin Azizi
- Chemistry and Chemical Engineering Research Center of Iran, P.O. Box 14335-186, Tehran, Iran
| | - Meysam Khajeh
- Chemistry and Chemical Engineering Research Center of Iran, P.O. Box 14335-186, Tehran, Iran
| | - Masoumeh Alipour
- Chemistry and Chemical Engineering Research Center of Iran, P.O. Box 14335-186, Tehran, Iran
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40
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Abstract
A concise approach to access functionalized benzocyclobutenones from 3-halophenol derivatives is described. This modified synthesis employs a [2+2] cycloaddition between benzynes generated from dehydrohalogenation of aryl halides using LiTMP and acetaldehyde enolate generated from n-BuLi and THF, followed by oxidation of the benzocyclobutenol intermediates to provide benzocyclobutenones. The [2+2] reaction can be run on a 10-gram scale with an increased yield. A number of functional groups including alkenes and alkynes are tolerated. Coupling of benzynes with ketene silyl acetals to give 8-substituted benzocyclobutenones is also demonstrated.
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Affiliation(s)
- Peng-Hao Chen
- Department of Chemistry, University of Texas at Austin, Austin, Texas 78712, United States
| | - Nikolas A Savage
- Department of Chemistry, University of Texas at Austin, Austin, Texas 78712, United States
| | - Guangbin Dong
- Department of Chemistry, University of Texas at Austin, Austin, Texas 78712, United States
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41
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Burange AS, Kale SR, Zboril R, Gawande MB, Jayaram RV. Magnetically retrievable MFe2O4 spinel (M = Mn, Co, Cu, Ni, Zn) catalysts for oxidation of benzylic alcohols to carbonyls. RSC Adv 2014. [DOI: 10.1039/c3ra45327h] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
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42
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Screening for pharmaceutical transformation products formed in river sediment by combining ultrahigh performance liquid chromatography/high resolution mass spectrometry with a rapid data-processing method. Anal Chim Acta 2013; 810:61-70. [PMID: 24439506 DOI: 10.1016/j.aca.2013.12.012] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2013] [Revised: 11/29/2013] [Accepted: 12/05/2013] [Indexed: 11/24/2022]
Abstract
While the occurrence of pharmaceuticals in the aquatic environment has been extensively investigated, their environmental fate is less thoroughly explored. Scarce information on their transformation pathways and transformation products (TPs) limits conventional target analytical approaches. In this study, samples from water/sediment tests were analyzed by ultrahigh performance liquid chromatography interfaced with quadrupole time-of-flight mass spectrometry (UHPLC/QToF-MS). A data processing method based on peak detection, time-trend filtration and structure assignment was established to provide an efficient way for identifying the key TPs in terms of persistence; all software used for the individual steps of this method is freely available. The accurate mass and meaningful time-trends were major contributors in facilitating the isolation of plausible TP peaks. In total, 16 TPs from 9 parent pharmaceuticals were identified. Eleven out of the 16 TPs were confirmed by corresponding reference standards; no standards were available for the remaining TPs. For additional 6 potential TPs, a molecular formula was suggested but no additional structural information could be generated. Among the TPs identified in the water/sediment tests, carbamazepine-10,11-epoxide (parent: carbamazepine), saluamine (parent: furosemide), chlorothiazide and 4-amino-6-chloro-1,3-benzenedisulfonamide (parent of both: hydrochlorothiazide), and 1-naphthol (parent: propranolol) accumulated over the entire incubation period of 35 days.
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43
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Selective liquid phase oxidation of secondary alcohols into ketones by tert-butyl hydroperoxide on nano-fibrous Ag-OMS-2 catalyst. ACTA ACUST UNITED AC 2013. [DOI: 10.1016/j.molcata.2013.09.018] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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44
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Liu J, Ma S. Room temperature Fe(NO3)3·9H2O/TEMPO/NaCl-catalyzed aerobic oxidation of homopropargylic alcohols. Tetrahedron 2013. [DOI: 10.1016/j.tet.2013.08.082] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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45
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Stoltz B, Motherwell W. Tetrahedron reports on organic chemistry. Tetrahedron 2013. [DOI: 10.1016/s0040-4020(13)01252-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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46
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Dey M, Dhar SS, Kalita M. Novel Method of Synthesis of Quaternary Ammonium Tribromides and Investigation of Catalytic Role of Benzyltrimethylammonium Tribromide in Oxidation of Alcohols to Carbonyl Compounds. SYNTHETIC COMMUN 2013. [DOI: 10.1080/00397911.2012.666694] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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47
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One-pot synthesis of (R)-1-(1-naphthyl)ethanol by stereoinversion using Candida parapsilosis. Tetrahedron Lett 2013. [DOI: 10.1016/j.tetlet.2013.04.051] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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48
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Chung K, Banik SM, De Crisci AG, Pearson DM, Blake TR, Olsson JV, Ingram AJ, Zare RN, Waymouth RM. Chemoselective Pd-catalyzed oxidation of polyols: synthetic scope and mechanistic studies. J Am Chem Soc 2013; 135:7593-602. [PMID: 23659308 DOI: 10.1021/ja4008694] [Citation(s) in RCA: 81] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The regio- and chemoselective oxidation of unprotected vicinal polyols with [(neocuproine)Pd(OAc)]2(OTf)2 (1) (neocuproine = 2,9-dimethyl-1,10-phenanthroline) occurs readily under mild reaction conditions to generate α-hydroxy ketones. The oxidation of vicinal diols is both faster and more selective than the oxidation of primary and secondary alcohols; vicinal 1,2-diols are oxidized selectively to hydroxy ketones, whereas primary alcohols are oxidized in preference to secondary alcohols. Oxidative lactonization of 1,5-diols yields cyclic lactones. Catalyst loadings as low as 0.12 mol % in oxidation reactions on a 10 g scale can be used. The exquisite selectivity of this catalyst system is evident in the chemoselective and stereospecific oxidation of the polyol (S,S)-1,2,3,4-tetrahydroxybutane [(S,S)-threitol] to (S)-erythrulose. Mechanistic, kinetic, and theoretical studies revealed that the rate laws for the oxidation of primary and secondary alcohols differ from those of diols. Density functional theory calculations support the conclusion that β-hydride elimination to give hydroxy ketones is product-determining for the oxidation of vicinal diols, whereas for primary and secondary alcohols, pre-equilibria favoring primary alkoxides are product-determining. In situ desorption electrospray ionization mass spectrometry (DESI-MS) revealed several key intermediates in the proposed catalytic cycle.
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Affiliation(s)
- Kevin Chung
- Department of Chemistry, Stanford University, Stanford, California 94306, USA
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49
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Li XA, Wang HL, Yang SD. Sc(OTf)3-Catalyzed Dehydrogenative Cyclization for Synthesis of N-Methylacridones. Org Lett 2013; 15:1794-7. [DOI: 10.1021/ol400371h] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Xi-An Li
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, P. R. China, and State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, Lanzhou 730000, P. R. China
| | - Hong-Li Wang
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, P. R. China, and State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, Lanzhou 730000, P. R. China
| | - Shang-Dong Yang
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, P. R. China, and State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, Lanzhou 730000, P. R. China
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50
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De Crisci AG, Chung K, Oliver AG, Solis-Ibarra D, Waymouth RM. Chemoselective Oxidation of Polyols with Chiral Palladium Catalysts. Organometallics 2013. [DOI: 10.1021/om4001549] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Antonio G. De Crisci
- Department of Chemistry, Stanford University, Stanford, California
94305, United States
| | - Kevin Chung
- Department of Chemistry, Stanford University, Stanford, California
94305, United States
| | - Allen G. Oliver
- Molecular
Structure Facility, Department
of Chemistry and Biochemistry, University of Notre Dame, Notre Dame,
Indiana 46556, United States
| | - Diego Solis-Ibarra
- Department of Chemistry, Stanford University, Stanford, California
94305, United States
| | - Robert M. Waymouth
- Department of Chemistry, Stanford University, Stanford, California
94305, United States
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