1
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Chicas-Baños DF, López-Rivas M, González-Bravo FJ, Sartillo-Piscil F, Frontana-Uribe BA. Access to carbonyl compounds via the electroreduction of N-benzyloxyphthalimides: Mechanism confirmation and preparative applications. Heliyon 2024; 10:e23808. [PMID: 38226225 PMCID: PMC10788431 DOI: 10.1016/j.heliyon.2023.e23808] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2023] [Revised: 12/10/2023] [Accepted: 12/13/2023] [Indexed: 01/17/2024] Open
Abstract
A method to access carbonyl compounds using reductive conditions was evaluated via electrochemical reduction of their corresponding N-benzyloxyphthalimide derivatives (NBOPIs). The mechanism of this originally reported electrochemical reaction was proposed based on DFT calculation and is experimentally confirmed herein, contrasting simulated and experimental cyclic voltammetry data. The reaction scope studied in a preparative scale and using redox sensitive functional groups showed good selectivity and tolerance toward oxidation under the reaction conditions with a moderate to good yield (50-71%). Nevertheless, some restrictions with reducible functional groups, like benzyl-brominated and nitro-aromatic derivatives, were observed. The present approach can be considered a self-sustainable electrochemical catalysis for the synthesis of aromatic carbonylic compounds passing through anion radical intermediates produced by a cathodic reaction.
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Affiliation(s)
- Diego Francisco Chicas-Baños
- Universidad de El Salvador (UES), Facultad de Ciencias Naturales y Matemática, Escuela de Química, Final 25 Av. Nte, 1101, San Salvador, El Salvador
- Universidad Nacional Autónoma de México, Instituto de Química, Ciudad Universitaria, Mexico City, 04510, Mexico
| | - Mariely López-Rivas
- Centro Conjunto Química Sustentable UAEMéx-UNAM, Km 14.5 Carretera Toluca-Ixtlahuaca, Toluca, 50200, Estado de México, Mexico
| | - Felipe J. González-Bravo
- Departamento de Química, Centro de Investigación y Estudios Avanzados, Av. Instituto Politécnico Nacional 2508, 07360, Mexico City, Mexico
| | - Fernando Sartillo-Piscil
- Centro de Investigación de la Facultad de Ciencias Químicas, Benemérita Universidad Autónoma de Puebla (BUAP), 14 Sur Esq. San Claudio, Col. San Manuel, 72570, Puebla, Mexico
| | - Bernardo Antonio Frontana-Uribe
- Universidad Nacional Autónoma de México, Instituto de Química, Ciudad Universitaria, Mexico City, 04510, Mexico
- Centro Conjunto Química Sustentable UAEMéx-UNAM, Km 14.5 Carretera Toluca-Ixtlahuaca, Toluca, 50200, Estado de México, Mexico
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2
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Cai X, Song X, Zhu Q, Zhang X, Fan X. Concise Synthesis of Spirocyclic Dihydrophthalazines through Spiroannulation Reactions of Aryl Azomethine Imines with Cyclic Diazo Compounds. J Org Chem 2022; 87:11048-11062. [PMID: 35921479 DOI: 10.1021/acs.joc.2c01312] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Spiroannulation reactions are fundamental and invaluable for the synthesis of spirocyclic compounds. Presented herein are novel cascade reactions of aryl azomethine imines with cyclic diazo compounds leading to the formation of spirocyclic dihydrophthalazine derivatives. Based on experimental mechanistic studies, the formation of the title products is believed to go through azomethine imine-assisted cylcometalation, Rh-carbene formation through dediazonization, and migratory insertion followed by reductive elimination and azomethine imine ring opening. Control experiments revealed that air acts as an effective and sustainable co-oxidant to facilitate the cascade reaction. In general, this concise synthesis of the unprecedented spirocyclic dihydrophthalazine derivatives has advantages such as easily accessible substrates, good functional group compatibility, mild reaction conditions, high efficiency and selectivity, and excellent atom-economy. In addition, the value of this protocol is underlined by its ready scalability and divergent derivation of products.
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Affiliation(s)
- Xinyuan Cai
- Henan Key Laboratory of Organic Functional Molecules and Drug Innovation, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China
| | - Xia Song
- Henan Key Laboratory of Organic Functional Molecules and Drug Innovation, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China
| | - Qiuhui Zhu
- Henan Key Laboratory of Organic Functional Molecules and Drug Innovation, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China
| | - Xinying Zhang
- Henan Key Laboratory of Organic Functional Molecules and Drug Innovation, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China
| | - Xuesen Fan
- Henan Key Laboratory of Organic Functional Molecules and Drug Innovation, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China
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3
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Kong Y, Wei K, Yan G. Radical coupling reactions of hydrazines via photochemical and electrochemical strategies. Org Chem Front 2022. [DOI: 10.1039/d2qo01348g] [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
Hydrazines are versatile building blocks in organic synthesis.
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Affiliation(s)
- Yilin Kong
- College of Jiyang, Zhejiang A&F University, Zhuji 311800, China
| | - Kangning Wei
- College of Jiyang, Zhejiang A&F University, Zhuji 311800, China
| | - Guobing Yan
- College of Jiyang, Zhejiang A&F University, Zhuji 311800, China
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4
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Pitsanuwong C, Boonwan J, Chomngam S, Wechakorn K, Kanjanasirirat P, Pewkliang Y, Borwornpinyo S, Kongsaeree P. A Rhodamine-based Fluorescent Chemodosimeter for Au 3+ in Aqueous Solution and Living Cells. J Fluoresc 2021; 31:1211-1218. [PMID: 34046770 DOI: 10.1007/s10895-021-02725-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2020] [Accepted: 03/17/2021] [Indexed: 01/06/2023]
Abstract
A highly selective rhodamine hydrazide-based fluorescent chemosensor for Au3+ detection was developed. The aqueous solution of rhodamine N-hydroxysemicarbazide (RHS), in the presence of Au3+, exhibited a significant 55-fold turn-on fluorescence response at 591 nm and a colorimetric change from colorless to pink. Other interested ions including Li+, Na+, K+, Cs+, Mg2+, Ca2+, Ba2+, Pb2+, Mn2+, Co2+, Ni2+, Ag+, Cd2+, Cu2+, Hg2+, Zn2+, Sn2+, Fe2+, Fe3+, Cr3+, Ce3+ did not induce any distinct color/spectral changes. The irreversible detection mechanism occurred via Au3+-promoted 5-exo-trig ring closure to yield 1,3,4-oxadiazole-2-one product. The RHS probe is non-responsive to other biologically relevant metal ions and the limit of detection for Au3+ was calculated to be 0.5 µM with a linear range of 0 to 90 µM. Fluorescence bioimaging of Au3+ in HepG2 cells was also successfully demonstrated.
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Affiliation(s)
- Chariwat Pitsanuwong
- Department of Chemistry, Faculty of Science and Technology, Suan Sunandha Rajabhat University, Bangkok, 10400, Thailand.
| | - Juthamanee Boonwan
- Department of Chemistry, Faculty of Science and Technology, Suan Sunandha Rajabhat University, Bangkok, 10400, Thailand
| | - Sinchai Chomngam
- Department of Chemistry, Center of Excellence for Innovation in Chemistry, Faculty of Science, Mahidol University, 10400, Bangkok, Thailand
- Center for Excellence in Protein and Enzyme Technology, Faculty of Science, Mahidol University, 10400, Bangkok, Thailand
| | - Kanokorn Wechakorn
- Department of Chemistry, Faculty of Science and Technology, Rajamangala University of Technology Thanyaburi, 12110, Pathumthani, Thailand
| | - Phongthon Kanjanasirirat
- Excellent Center for Drug Discovery, Faculty of Science, Mahidol University, 10400, Bangkok, Thailand
| | - Yongyut Pewkliang
- Excellent Center for Drug Discovery, Faculty of Science, Mahidol University, 10400, Bangkok, Thailand
| | - Suparerk Borwornpinyo
- Excellent Center for Drug Discovery, Faculty of Science, Mahidol University, 10400, Bangkok, Thailand
- Department of Biotechnology, Faculty of Science, Mahidol University, 10400, Bangkok, Thailand
| | - Palangpon Kongsaeree
- Department of Chemistry, Center of Excellence for Innovation in Chemistry, Faculty of Science, Mahidol University, 10400, Bangkok, Thailand.
- Center for Excellence in Protein and Enzyme Technology, Faculty of Science, Mahidol University, 10400, Bangkok, Thailand.
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5
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Ma H, Liu S, Zhu L, Ma C, Han X, He C, Zhao B. Vibrational spectroscopy and DFT analysis of 4-cyanophenylhydrazine: A potential SERS probe. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2021; 253:119574. [PMID: 33640624 DOI: 10.1016/j.saa.2021.119574] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/09/2020] [Revised: 01/05/2021] [Accepted: 01/29/2021] [Indexed: 06/12/2023]
Abstract
4-Cyanophenylhydrazine (4-CPH) is an organic synthesis intermediate. To date, several products derived from 4-CPH have been well studied; however, 4-CPH itself has not been extensively investigated. Herein, we performed vibrational and theoretical analyses of 4-CPH. Density functional theory (DFT) calculations were applied to predict the IR and Raman spectra of 4-CPH, which were compared with the experimental spectra. The calculated and experimental spectral results were in good agreement, except for an abnormal transformation of the protonated 4-CPH cyano group (C≡N), which was observed in the theoretical IR spectrum. Several wavefunction analyses revealed that this transformation was due to the protonation-induced depolarization of the molecule. Moreover, we verified the applicability of 4-CPH as a probe for surface-enhanced Raman spectroscopy (SERS). We observed a pH-dependent shift in the cyano bond frequency within the silent region and determined, as a novel discovery, that this shift was induced by 4-CPH protonation. Our results provide considerable, fundamental information that confirms the potential of 4-CPH as a SERS probe.
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Affiliation(s)
- Hao Ma
- State Key Laboratory of Supramolecular Structure and Materials, Jilin University, Changchun 130012, PR China
| | - Songlin Liu
- State Key Laboratory of Supramolecular Structure and Materials, Jilin University, Changchun 130012, PR China
| | - Lin Zhu
- State Key Laboratory of Supramolecular Structure and Materials, Jilin University, Changchun 130012, PR China
| | - Chao Ma
- State Key Laboratory of Supramolecular Structure and Materials, Jilin University, Changchun 130012, PR China
| | - Xiaoxia Han
- State Key Laboratory of Supramolecular Structure and Materials, Jilin University, Changchun 130012, PR China
| | - Chengyan He
- China-Japan Union Hospital of Jilin University, Changchun 130033, PR China
| | - Bing Zhao
- State Key Laboratory of Supramolecular Structure and Materials, Jilin University, Changchun 130012, PR China.
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6
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Zaib S, Khan I. Synthetic and medicinal chemistry of phthalazines: Recent developments, opportunities and challenges. Bioorg Chem 2020; 105:104425. [PMID: 33157344 DOI: 10.1016/j.bioorg.2020.104425] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2020] [Revised: 09/22/2020] [Accepted: 10/20/2020] [Indexed: 12/14/2022]
Abstract
Fused diaza-heterocycles constitute the core structure of numerous bioactive natural products and effective therapeutic drugs. Among them, phthalazines have been recognized as remarkable structural leads in medicinal chemistry due to their wide application in pharmaceutical and agrochemical industries. Accessing such challenging pharmaceutical agents/drug candidates with high chemical complexity through synthetically efficient approaches remains an attractive goal in the contemporary medicinal chemistry and drug discovery arena. In this review, we focus on the recent developments in the synthetic routes towards the generation of phthalazine-based active pharmaceutical ingredients and their biological potential against various targets. The general reaction scope of these innovative and easily accessible strategies was emphasized focusing on the functional group tolerance, substrate and coupling partner compatibility/limitation, the choice of catalyst, and product diversification. These processes were also accompanied by the mechanistic insights where deemed appropriate to demonstrate meaningful information. Moreover, the rapid examination of the structure-activity relationship analyses around the phthalazine core enabled by the pharmacophore replacement/integration revealed the generation of robust, efficient, and more selective compounds with pronounced biological effects. A large variety of in silico methods and ADME profiling tools were also employed to provide a global appraisal of the pharmacokinetics profile of diaza-heterocycles. Thus, the discovery of new structural leads offers the promise of improving treatments for various tropical diseases such as tuberculosis, leishmaniasis, malaria, Chagas disease, among many others including various cancers, atherosclerosis, HIV, inflammatory, and cardiovascular diseases. We hope this review would serve as an informative collection of structurally diverse molecules enabling the generation of mature, high-quality, and innovative routes to support the drug discovery endeavors.
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Affiliation(s)
- Sumera Zaib
- Department of Biochemistry, Faculty of Life Sciences, University of Central Punjab, Lahore 54590, Pakistan
| | - Imtiaz Khan
- Department of Chemistry and Manchester Institute of Biotechnology, The University of Manchester, 131 Princess Street, Manchester M1 7DN, United Kingdom.
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7
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Balgotra S, Verma PK, Vishwakarma RA, Sawant SD. Catalytic advances in direct functionalizations using arylated hydrazines as the building blocks. CATALYSIS REVIEWS 2019. [DOI: 10.1080/01614940.2019.1702191] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- Shilpi Balgotra
- Medicinal Chemistry Division, CSIR-Indian Institute of Integrative Medicine, Jammu, India
- Academy of Scientific and Innovative Research, New Delhi, India
| | - Praveen Kumar Verma
- Medicinal Chemistry Division, CSIR-Indian Institute of Integrative Medicine, Jammu, India
| | - Ram A. Vishwakarma
- Medicinal Chemistry Division, CSIR-Indian Institute of Integrative Medicine, Jammu, India
| | - Sanghapal D. Sawant
- Medicinal Chemistry Division, CSIR-Indian Institute of Integrative Medicine, Jammu, India
- Academy of Scientific and Innovative Research, New Delhi, India
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8
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Fu R, Li M, Zhou P, Hao W, Tu S, Jiang B. Synthesis of 3,4‐Dihydrobenzo[
f
]phthalazines
via
Iodine/
tert
‐Butyl Hydroperoxide‐Mediated Annulation Cascade of Yne‐Allenones. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201900063] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Rong Fu
- School of Chemistry & Materials ScienceJiangsu Key Laboratory of Green Synthetic Chemistry for Functional MaterialsJiangsu Normal University Xuzhou 211116 People's Republic of China
| | - Meng‐Fan Li
- School of Chemistry & Materials ScienceJiangsu Key Laboratory of Green Synthetic Chemistry for Functional MaterialsJiangsu Normal University Xuzhou 211116 People's Republic of China
| | - Peng Zhou
- School of Chemistry & Materials ScienceJiangsu Key Laboratory of Green Synthetic Chemistry for Functional MaterialsJiangsu Normal University Xuzhou 211116 People's Republic of China
| | - Wen‐Juan Hao
- School of Chemistry & Materials ScienceJiangsu Key Laboratory of Green Synthetic Chemistry for Functional MaterialsJiangsu Normal University Xuzhou 211116 People's Republic of China
| | - Shu‐Jiang Tu
- School of Chemistry & Materials ScienceJiangsu Key Laboratory of Green Synthetic Chemistry for Functional MaterialsJiangsu Normal University Xuzhou 211116 People's Republic of China
| | - Bo Jiang
- School of Chemistry & Materials ScienceJiangsu Key Laboratory of Green Synthetic Chemistry for Functional MaterialsJiangsu Normal University Xuzhou 211116 People's Republic of China
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9
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Callebaut B, Hullaert J, Van Hecke K, Winne JM. An Intramolecular Cycloaddition Approach to the Kauranoid Family of Diterpene Metabolites. Org Lett 2019; 21:310-314. [PMID: 30571133 DOI: 10.1021/acs.orglett.8b03810] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Synthetic studies toward the ent-kauranoid family of diterpene natural products are reported. An intramolecular (4 + 3) cycloaddition allows the direct elaboration of diverse natural product frameworks, encompassing a challenging bicyclo[3.2.1]octane core. The established routes comprise only a few synthetic operations (3-5 steps), transforming a range of simple starting materials into the tetracyclic scaffolds that are commonly found in many ent-kaurene metabolites.
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Affiliation(s)
- Brenda Callebaut
- Department of Organic and Macromolecular Chemistry , Ghent University , Krijgslaan 281 S4 , 9000 Gent , Belgium
| | - Jan Hullaert
- Department of Organic and Macromolecular Chemistry , Ghent University , Krijgslaan 281 S4 , 9000 Gent , Belgium
| | - Kristof Van Hecke
- XStruct, Department of Chemistry , Ghent University , Krijgslaan 281 S3 , 9000 Ghent , Belgium
| | - Johan M Winne
- Department of Organic and Macromolecular Chemistry , Ghent University , Krijgslaan 281 S4 , 9000 Gent , Belgium
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10
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Guo R, Zhang Z, Shi F, Tang P. Tunable Cascade Reaction of Aryl Diazonium Salts and Trialkylamine: Synthesis of Monofluorinated Arylhydrazones and gem-Difluorinated Azo Compounds. Org Lett 2016; 18:1008-11. [DOI: 10.1021/acs.orglett.6b00130] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
- Rui Guo
- State
Key Laboratory and Institute of Elemento-Organic Chemistry, Nankai Unviersity, Tianjin 300071, China
| | - Zhengjuan Zhang
- Key
Laboratory of Natural Medicine and Immuno-Engineering of Henan Province, Henan University, Kaifeng 475004, China
| | - Feng Shi
- Key
Laboratory of Natural Medicine and Immuno-Engineering of Henan Province, Henan University, Kaifeng 475004, China
| | - Pingping Tang
- State
Key Laboratory and Institute of Elemento-Organic Chemistry, Nankai Unviersity, Tianjin 300071, China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300071, China
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11
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Li DY, Wei Y, Shi M. Iron(III)-Catalyzed 1,3-Functional Group Transposition Reactions: Synthetic Protocol to Access 3-Substituted Indoles. ASIAN J ORG CHEM 2016. [DOI: 10.1002/ajoc.201600037] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- De-Yao Li
- State Key Laboratory of Organometallic Chemistry; Shanghai Institute of Organic Chemistry; Chinese Academy of Sciences; 345 Ling-Ling Lu Shanghai 200032 China), Fax: (+86) 21-64166128
| | - Yin Wei
- State Key Laboratory of Organometallic Chemistry; Shanghai Institute of Organic Chemistry; Chinese Academy of Sciences; 345 Ling-Ling Lu Shanghai 200032 China), Fax: (+86) 21-64166128
| | - Min Shi
- State Key Laboratory of Organometallic Chemistry; Shanghai Institute of Organic Chemistry; Chinese Academy of Sciences; 345 Ling-Ling Lu Shanghai 200032 China), Fax: (+86) 21-64166128
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12
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Gu M, Yan X, Cheng Z. Hybrid catalytic effects of K2CO3 on the synthesis of salicylic acid from carboxylation of phenol with CO2. RESEARCH ON CHEMICAL INTERMEDIATES 2015. [DOI: 10.1007/s11164-015-2025-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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13
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Mantenuto S, Mantellini F, Favi G, Attanasi OA. Divergent Construction of Pyrazoles via Michael Addition of N-Arylhydrazones to 1,2-Diaza-1,3-dienes. Org Lett 2015; 17:2014-7. [DOI: 10.1021/acs.orglett.5b00776] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Serena Mantenuto
- Department of Biomolecular
Sciences, Section of Organic Chemistry and Organic Natural Compounds, University of Urbino “Carlo Bo”, Via I Maggetti 24, 61029 Urbino PU, Italy
| | - Fabio Mantellini
- Department of Biomolecular
Sciences, Section of Organic Chemistry and Organic Natural Compounds, University of Urbino “Carlo Bo”, Via I Maggetti 24, 61029 Urbino PU, Italy
| | - Gianfranco Favi
- Department of Biomolecular
Sciences, Section of Organic Chemistry and Organic Natural Compounds, University of Urbino “Carlo Bo”, Via I Maggetti 24, 61029 Urbino PU, Italy
| | - Orazio A. Attanasi
- Department of Biomolecular
Sciences, Section of Organic Chemistry and Organic Natural Compounds, University of Urbino “Carlo Bo”, Via I Maggetti 24, 61029 Urbino PU, Italy
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14
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Brahmayya M, Dai SA, Suen SY. Synthesis of 5-substituted-3H-[1,3,4]-oxadiazol-2-one derivatives: a carbon dioxide route (CDR). RSC Adv 2015. [DOI: 10.1039/c5ra08910g] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Access to a series of 5-substituted-3(H)-1,3,4-oxadiazole-2-one derivatives is described directly using the greenhouse gas CO2.
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Affiliation(s)
- M. Brahmayya
- Department of Chemical Engineering
- National Chung Hsing University
- Taichung-402
- Republic of China
| | - Shenghong A. Dai
- Department of Chemical Engineering
- National Chung Hsing University
- Taichung-402
- Republic of China
| | - S.-Y. Suen
- Department of Chemical Engineering
- National Chung Hsing University
- Taichung-402
- Republic of China
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15
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Li F, Sun C, Wang N. Catalytic Acceptorless Dehydrogenative Coupling of Arylhydrazines and Alcohols for the Synthesis of Arylhydrazones. J Org Chem 2014; 79:8031-9. [DOI: 10.1021/jo501161u] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Feng Li
- Key Laboratory for Soft Chemistry
and Functional Materials, Ministry of Education, Nanjing University of Science and Technology, Nanjing 210094, People’s Republic of China
| | - Chunlou Sun
- Key Laboratory for Soft Chemistry
and Functional Materials, Ministry of Education, Nanjing University of Science and Technology, Nanjing 210094, People’s Republic of China
| | - Nana Wang
- Key Laboratory for Soft Chemistry
and Functional Materials, Ministry of Education, Nanjing University of Science and Technology, Nanjing 210094, People’s Republic of China
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