1
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Bigdelo M, Nemati F, Rangraz Y. Organoselenium functionalized SBA-15 as a new catalyst for the cyanide-free conversion of oximes to nitriles. BMC Chem 2022; 16:99. [PMID: 36414989 PMCID: PMC9682781 DOI: 10.1186/s13065-022-00899-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2022] [Accepted: 11/08/2022] [Indexed: 11/24/2022] Open
Abstract
BACKGROUND Here we report a new selenium-based heterogeneous catalyst, which was prepared from the immobilization of diphenyl diselenide on amine-functionalized Santa Barbara Amorphous-15 (SBA-15). The catalyst characterization study has been confirmed by different analysis methods including Fourier transform infrared spectroscopy (FT-IR), thermogravimetric analysis (TGA), energy-dispersive X-ray spectroscopy (EDX), X-ray diffraction patterns (XRD), field-emission scanning electron microscopy (FE-SEM), and Brunauer-Emmett-Teller (BET) surface area analysis. RESULTS The newly designed catalyst was successfully applied in the green dehydration reaction of oximes to corresponding nitriles in the presence of hydrogen peroxide/air. To demonstrate the role of the catalyst in this study, the model reaction was also carried out in the absence of the catalyst and a trace yield of the relevant product was achieved. CONCLUSION In this way, a series of nitrile derivatives were obtained with 72-96% yields, also, the catalyst could be separated easily and recycled for four consecutive runs with no obvious drop in catalytic activity.
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Affiliation(s)
- Maryam Bigdelo
- Department of Chemistry, Semnan University, Semnan, 35131-19111, Iran
| | - Firouzeh Nemati
- Department of Chemistry, Semnan University, Semnan, 35131-19111, Iran.
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2
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Abstract
Cyclopropenium ions are the smallest class of aromatic compounds, satisfying Hückel's rules of aromaticity with two π electrons within a three-membered ring. First prepared by Breslow in 1957, cyclopropenium ions have been found to possess extraordinary stability despite being both cationic and highly strained. In the 65 years since their first preparation, cyclopropenium ions have been the subject of innumerable studies concerning their synthesis, physical properties, and reactivity. However, prior to our work, the reactivity of these unique carbocations had not been exploited for reaction promotion or catalysis.Over the past 13 years, we have been exploring aromatic ions as unique and versatile building blocks for the development of catalysts for organic chemistry. A major portion of this work has been focused on leveraging the remarkable properties of the smallest of the aromatic ions─cyclopropeniums─as a design element in the invention of highly reactive catalysts. Indeed, because of its unique profile of hydrolytic stability, compact geometry, and relatively easy oxidizability, the cyclopropenium ring has proven to be a highly advantageous construction module for catalyst invention.In this Account, we describe some of our work using cyclopropenium ions as a key element in the design of novel catalysts. First, we discuss our early work aimed at promoting dehydrative reactions, starting with Appel-type chlorodehydrations of alcohols and carboxylic acids, cyclic ether formations, and Beckmann rearrangements and culminating in the realization of catalytic chlorodehydrations of alcohols and a catalytic Mitsunobu-type reaction. Next, we describe the development of cyclopropenimines as strong, neutral organic Brønsted bases and, in particular, the use of chiral cyclopropenimines for enantioselective Brønsted catalysis. We also describe the development of higher-order cyclopropenimine superbases. The use of tris(amino)cyclopropenium (TAC) ions as a novel class of phase-transfer catalysts is discussed for the reaction of epoxides with carbon dioxide. Next, we describe the formation of a cyclopropenone radical cation that has a portion of its spin density on the oxygen atom, leading to some peculiar metal ligand behavior. Finally, we discuss recent work that employs TAC electrophotocatalysts for oxidation reactions. The key intermediate for this chemistry is a TAC radical dication, which as an open-shell photocatalyst has remarkably strong excited-state oxidizing power. We describe the application of this strategy to transformations ranging from the oxidative functionalization of unactivated arenes to the regioselective derivatization of ethers, C-H aminations, vicinal C-H diaminations, and finally aryl olefin dioxygenations. Collectively, these catalytic platforms demonstrate the utility of charged aromatic rings, and cyclopropenium ions in particular, to enable unique advances in catalysis.
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Affiliation(s)
- Rebecca M Wilson
- Department of Chemistry and Chemical Biology, Cornell University, Ithaca, New York 14853, United States
| | - Tristan H Lambert
- Department of Chemistry and Chemical Biology, Cornell University, Ithaca, New York 14853, United States
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3
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Aly AA, Hassan AA, Mostafa SM, Mohamed AH, Osman EM, Nayl AA. Heterocycles from cyclopropenones. RSC Adv 2022; 12:18615-18645. [PMID: 35873324 PMCID: PMC9229296 DOI: 10.1039/d2ra03011j] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Accepted: 06/02/2022] [Indexed: 11/21/2022] Open
Abstract
Great attention has been paid to cyclopropenones as they are present in many natural sources. Various synthesized cyclopropenone derivatives also show a wide range of biological activities. The cyclopropenone derivatives undergo a variety of reactions such as ring-opening reactions, isomerization reactions, C-C coupling reactions, C-H activation, cycloaddition reactions, thermal and photo-irradiation reactions, and acid-base-catalyzed reactions under the influence of various chemical reagents (electrophiles, nucleophiles, radicals, and organometallics) and external forces (heat and light). Many previous reviews have dealt with the chemistry and reactions of cyclopropenones. However and to the best of our knowledge, the utility of cyclopropenones in the synthesis of heterocycles has not been reported before. Therefore, it would be interesting to shed light on this new topic. The present review article provides, for the first time, a comprehensive compilation of synthetic methods for the synthesis of various heterocyclic ring systems, as a significant family in the field of organic chemistry.
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Affiliation(s)
- Ashraf A Aly
- Chemistry Department, Faculty of Science, Minia University El-Minia 61519 Egypt
| | - Alaa A Hassan
- Chemistry Department, Faculty of Science, Minia University El-Minia 61519 Egypt
| | - Sara M Mostafa
- Chemistry Department, Faculty of Science, Minia University El-Minia 61519 Egypt
| | - Asmaa H Mohamed
- Chemistry Department, Faculty of Science, Minia University El-Minia 61519 Egypt
| | - Esraa M Osman
- Chemistry Department, Faculty of Science, Minia University El-Minia 61519 Egypt
| | - AbdElAziz A Nayl
- Department of Chemistry, College of Science, Jouf University P. O. Box 2014 Sakaka Aljouf Saudi Arabia
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4
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Wang L, Li K, Zhang W. Organoselenium-Catalyzed Conversion of Oximes to Nitriles or Ketones. CHINESE J ORG CHEM 2022. [DOI: 10.6023/cjoc202109036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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5
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Ranga PK, Ahmad F, Singh G, Tyagi A, Vijaya Anand R. Recent advances in the organocatalytic applications of cyclopropene- and cyclopropenium-based small molecules. Org Biomol Chem 2021; 19:9541-9564. [PMID: 34704583 DOI: 10.1039/d1ob01549d] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The development of novel small molecule-based catalysts for organic transformations has increased noticeably in the last two decades. A very recent addition to this particular research area is cyclopropene- and cyclopropenium-based catalysts. At one point in time, particularly in the mid-20th century, much attention was focused on the structural aspects and physical properties of cyclopropene-based compounds. However, a paradigm shift was observed in the late 20th century, and the focus shifted to the synthetic utility of these compounds. In fact, a wide range of cyclopropene derivatives have been found serving as valuable synthons for the construction of carbocycles, heterocycles and other useful organic compounds. In the last few years, the catalytic applications of cyclopropene/cyclopropenium-based compounds have been uncovered and many synthetic protocols have been developed using cyclopropene-based compounds as organocatalysts. Therefore, the main objective of this review is to highlight recent developments in the catalytic applications of cyclopropene-based small molecules in different areas of organocatalysis such as phase-transfer catalysis (PTC), Brønsted base catalysis, hydrogen-bond donor catalysis, nucleophilic carbene catalysis, and electrophotocatalysis developed within the past two decades.
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Affiliation(s)
- Pavit K Ranga
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Mohali, Sector 81, Knowledge City, S.A.S Nagar, Manauli (PO), Punjab - 140306, India.
| | - Feroz Ahmad
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Mohali, Sector 81, Knowledge City, S.A.S Nagar, Manauli (PO), Punjab - 140306, India.
| | - Gurdeep Singh
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Mohali, Sector 81, Knowledge City, S.A.S Nagar, Manauli (PO), Punjab - 140306, India.
| | - Akshi Tyagi
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Mohali, Sector 81, Knowledge City, S.A.S Nagar, Manauli (PO), Punjab - 140306, India.
| | - Ramasamy Vijaya Anand
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Mohali, Sector 81, Knowledge City, S.A.S Nagar, Manauli (PO), Punjab - 140306, India.
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6
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Zhou HQ, Gu XW, Zhou XH, Li L, Ye F, Yin GW, Xu Z, Xu LW. Enantioselective palladium-catalyzed C(sp 2)-C(sp 2) σ bond activation of cyclopropenones by merging desymmetrization and (3 + 2) spiroannulation with cyclic 1,3-diketones. Chem Sci 2021; 12:13737-13743. [PMID: 34760158 PMCID: PMC8549799 DOI: 10.1039/d1sc04558j] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2021] [Accepted: 09/19/2021] [Indexed: 11/21/2022] Open
Abstract
Catalytic asymmetric variants for functional group transformations based on carbon–carbon bond activation still remain elusive. Herein we present an unprecedented palladium-catalyzed (3 + 2) spiro-annulation merging C(sp2)–C(sp2) σ bond activation and click desymmetrization to form synthetically versatile and value-added oxaspiro products. The operationally straightforward and enantioselective palladium-catalyzed atom-economic annulation process exploits a TADDOL-derived bulky P-ligand bearing a large cavity to control enantioselective spiro-annulation that converts cyclopropenones and cyclic 1,3-diketones into chiral oxaspiro cyclopentenone–lactone scaffolds with good diastereo- and enantio-selectivity. The click-like reaction is a successful methodology with a facile construction of two vicinal carbon quaternary stereocenters and can be used to deliver additional stereocenters during late-state functionalization for the synthesis of highly functionalized or more complex molecules. An unprecedented palladium-catalyzed (3 + 2) spiro-annulation merging C–C bond activation and desymmetrization was developed for the enantioselective construction of synthetically versatile and value-added oxaspiro products with up to 95% ee.![]()
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Affiliation(s)
- Han-Qi Zhou
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education, Key Laboratory of Organosilicon Material Technology of Zhejiang Province, Hangzhou Normal University No. 2318, Yuhangtang Road Hangzhou 311121 P. R. China
| | - Xing-Wei Gu
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education, Key Laboratory of Organosilicon Material Technology of Zhejiang Province, Hangzhou Normal University No. 2318, Yuhangtang Road Hangzhou 311121 P. R. China
| | - Xiao-Hua Zhou
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education, Key Laboratory of Organosilicon Material Technology of Zhejiang Province, Hangzhou Normal University No. 2318, Yuhangtang Road Hangzhou 311121 P. R. China
| | - Li Li
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education, Key Laboratory of Organosilicon Material Technology of Zhejiang Province, Hangzhou Normal University No. 2318, Yuhangtang Road Hangzhou 311121 P. R. China
| | - Fei Ye
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education, Key Laboratory of Organosilicon Material Technology of Zhejiang Province, Hangzhou Normal University No. 2318, Yuhangtang Road Hangzhou 311121 P. R. China
| | - Guan-Wu Yin
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education, Key Laboratory of Organosilicon Material Technology of Zhejiang Province, Hangzhou Normal University No. 2318, Yuhangtang Road Hangzhou 311121 P. R. China
| | - Zheng Xu
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education, Key Laboratory of Organosilicon Material Technology of Zhejiang Province, Hangzhou Normal University No. 2318, Yuhangtang Road Hangzhou 311121 P. R. China
| | - Li-Wen Xu
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education, Key Laboratory of Organosilicon Material Technology of Zhejiang Province, Hangzhou Normal University No. 2318, Yuhangtang Road Hangzhou 311121 P. R. China .,State Key Laboratory for Oxo Synthesis and Selective Oxidation, Suzhou Research Institute and Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences P. R. China
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7
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Shukla P, Asati A, Bhardiya SR, Singh M, Rai VK, Rai A. Metal-free C-H Activation over Graphene Oxide toward Direct Syntheses of Structurally Different Amines and Amides in Water. J Org Chem 2020; 85:15552-15561. [PMID: 33146530 DOI: 10.1021/acs.joc.0c02219] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Unprecedented metal-free synthesis of a variety of amines and amides is reported via amination of C(sp3)-H and C(sp2)-H bonds. The strategy involves graphene-oxide/I2-catalyzed nitrene insertion using PhINTs as a nitrene (NT) source in water at room temperature. A wide range of structurally different substrates, viz., cyclohexane, cyclic ethers, arenes, alkyl aromatic systems, and aldehydes/ketones, having an α-phenyl ring have been employed successfully to afford the corresponding nitrene insertion product in good yield, albeit low in few cases. The envisaged method has superiority over others in terms of its operational simplicity, metal-free catalysis, use of water as a solvent, ambient reaction conditions, and reusability of the catalyst.
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Affiliation(s)
- Prashant Shukla
- School of Physical Sciences, Jawaharlal Nehru University, New Delhi 110 067, India
| | - Ambika Asati
- Department of Chemistry, Guru Ghasidas Vishwavidyalaya, Bilaspur, Chhattisgarh 495 009, India
| | - Smita R Bhardiya
- Department of Chemistry, Guru Ghasidas Vishwavidyalaya, Bilaspur, Chhattisgarh 495 009, India
| | - Manorama Singh
- Department of Chemistry, Guru Ghasidas Vishwavidyalaya, Bilaspur, Chhattisgarh 495 009, India
| | - Vijai K Rai
- Department of Chemistry, Guru Ghasidas Vishwavidyalaya, Bilaspur, Chhattisgarh 495 009, India
| | - Ankita Rai
- School of Physical Sciences, Jawaharlal Nehru University, New Delhi 110 067, India
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8
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Shekharappa, Roopesh Kumar L, Srinivasulu C, Sureshbabu VV. Dehydration of Chiral α-Amides to Chiral α-Nitriles Under the Appel Reaction Conditions. Int J Pept Res Ther 2020. [DOI: 10.1007/s10989-020-10101-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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9
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Shukla P, Asati A, Bhardiya SR, Singh M, Rai VK, Rai A. Cu(I)-Induced Activation of Furan for Inverse Electron Demand ADAR with Alkenes toward Regioselective Synthesis of Tetrahydropyridine. J Org Chem 2020; 85:7772-7780. [PMID: 32479077 DOI: 10.1021/acs.joc.0c00279] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The aza-Diels-Alder reaction of various alkenes and in situ formed 1-aza-1,3-dienes from the reaction of furan/pyrrole/thiophene and PhINTs for the regioselective synthesis of tetrahydropyridine (THP) derivatives was realized. The reaction was catalyzed by TpMe2Cu as a catalyst under very mild reaction conditions. Structurally different alkenes, along with an alkyne, have been utilized as dienophiles to afford a wide range of different THP derivatives up to 70% yield. The potential application of the envisaged method was also investigated by a gram-scale synthesis.
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Affiliation(s)
- Prashant Shukla
- School of Physical Sciences, Jawaharlal Nehru University, New Delhi 110067, India
| | - Ambika Asati
- Department of Chemistry, Guru Ghasidas Vishwavidyalaya, Bilaspur, Chhattisgarh 495009, India
| | - Smita R Bhardiya
- Department of Chemistry, Guru Ghasidas Vishwavidyalaya, Bilaspur, Chhattisgarh 495009, India
| | - Manorama Singh
- Department of Chemistry, Guru Ghasidas Vishwavidyalaya, Bilaspur, Chhattisgarh 495009, India
| | - Vijai K Rai
- Department of Chemistry, Guru Ghasidas Vishwavidyalaya, Bilaspur, Chhattisgarh 495009, India
| | - Ankita Rai
- School of Physical Sciences, Jawaharlal Nehru University, New Delhi 110067, India
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10
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Ganesan M, Nagaraaj P. Recent developments in dehydration of primary amides to nitriles. Org Chem Front 2020. [DOI: 10.1039/d0qo00843e] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Various dehydration methods available for the direct conversion of amides to the corresponding nitriles have been reviewed.
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Affiliation(s)
- Muthupandian Ganesan
- Toxicology Division
- Regional Forensic Science Laboratory
- Forensic Sciences Department
- Chennai-4
- India
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11
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Affiliation(s)
- Mohammed H. Al‐Huniti
- Research and Development PatheonThermo Fisher Scientific 309 Delaware St. Greenville Sc 29605 USA
| | - Mitchell P. Croatt
- Department of Chemistry and BiochemistryUniversity of North Carolina at Greensboro 435 Sullivan Science Building Greensboro NC 27402 USA
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12
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Meng H, Gao S, Luo M, Zeng X. Iron and Phenol Co-Catalysis for Rapid Synthesis of Nitriles under Mild Conditions. European J Org Chem 2019. [DOI: 10.1002/ejoc.201900831] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Hong Meng
- Key Laboratory of Green Chemistry and Technology (MOE); College of Chemistry; Sichuan University; 610064 Chengdu People's Republic of China
| | - Sen Gao
- Key Laboratory of Green Chemistry and Technology (MOE); College of Chemistry; Sichuan University; 610064 Chengdu People's Republic of China
| | - Meiming Luo
- Key Laboratory of Green Chemistry and Technology (MOE); College of Chemistry; Sichuan University; 610064 Chengdu People's Republic of China
| | - Xiaoming Zeng
- Key Laboratory of Green Chemistry and Technology (MOE); College of Chemistry; Sichuan University; 610064 Chengdu People's Republic of China
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13
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Zhang D, Huang Y, Zhang E, Yi R, Chen C, Yu L, Xu Q. Pd/Mn Bimetallic Relay Catalysis for Aerobic Aldoxime Dehydration to Nitriles. Adv Synth Catal 2017. [DOI: 10.1002/adsc.201701154] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Dongliang Zhang
- School of Chemistry and Chemical Engineering and Institute of Pesticide of School of Horticulture and Plant Protection; Yangzhou University; Yangzhou, Jiangsu 225002 People's Republic of China
| | - Yaping Huang
- School of Chemistry and Chemical Engineering and Institute of Pesticide of School of Horticulture and Plant Protection; Yangzhou University; Yangzhou, Jiangsu 225002 People's Republic of China
| | - Erlei Zhang
- College of Chemistry and Materials Engineering; Wenzhou University; Wenzhou, Zhejiang 325035 People's Republic of China
| | - Rong Yi
- School of Chemistry and Chemical Engineering and Institute of Pesticide of School of Horticulture and Plant Protection; Yangzhou University; Yangzhou, Jiangsu 225002 People's Republic of China
| | - Chao Chen
- School of Chemistry and Chemical Engineering and Institute of Pesticide of School of Horticulture and Plant Protection; Yangzhou University; Yangzhou, Jiangsu 225002 People's Republic of China
| | - Lei Yu
- School of Chemistry and Chemical Engineering and Institute of Pesticide of School of Horticulture and Plant Protection; Yangzhou University; Yangzhou, Jiangsu 225002 People's Republic of China
| | - Qing Xu
- School of Chemistry and Chemical Engineering and Institute of Pesticide of School of Horticulture and Plant Protection; Yangzhou University; Yangzhou, Jiangsu 225002 People's Republic of China
- College of Chemistry and Materials Engineering; Wenzhou University; Wenzhou, Zhejiang 325035 People's Republic of China
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14
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Lyons DJM, Crocker RD, Blümel M, Nguyen TV. Promotion of Organic Reactions by Non‐Benzenoid Carbocyclic Aromatic Ions. Angew Chem Int Ed Engl 2016; 56:1466-1484. [DOI: 10.1002/anie.201605979] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2016] [Indexed: 12/12/2022]
Affiliation(s)
| | - Reece D. Crocker
- School of Chemistry University of New South Wales Sydney Australia
| | - Marcus Blümel
- School of Chemistry University of New South Wales Sydney Australia
- Institute of Organic Chemistry RWTH Aachen University Landoltweg 1 52074 Aachen Germany
| | - Thanh V. Nguyen
- School of Chemistry University of New South Wales Sydney Australia
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15
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Lyons DJM, Crocker RD, Blümel M, Nguyen TV. Vermittlung organischer Reaktionen durch nichtbenzoide carbocyclische aromatische Ionen. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201605979] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
| | - Reece D. Crocker
- School of Chemistry University of New South Wales Sydney Australien
| | - Marcus Blümel
- School of Chemistry University of New South Wales Sydney Australien
- Institut für Organische Chemie RWTH Aachen Landoltweg 1 52074 Aachen Deutschland
| | - Thanh V. Nguyen
- School of Chemistry University of New South Wales Sydney Australien
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16
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Rapeyko A, Climent MJ, Corma A, Concepción P, Iborra S. Nanocrystalline CeO2 as a Highly Active and Selective Catalyst for the Dehydration of Aldoximes to Nitriles and One-Pot Synthesis of Amides and Esters. ACS Catal 2016. [DOI: 10.1021/acscatal.6b00272] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Anastasia Rapeyko
- Instituto
de Tecnología Química (UPV-CSIC), Universitat Politécnica de València, Avda dels Tarongers s/n, 46022, Valencia, Spain
| | - Maria J. Climent
- Instituto
de Tecnología Química (UPV-CSIC), Universitat Politécnica de València, Avda dels Tarongers s/n, 46022, Valencia, Spain
| | - Avelino Corma
- Instituto
de Tecnología Química (UPV-CSIC), Universitat Politécnica de València, Avda dels Tarongers s/n, 46022, Valencia, Spain
- King Fahd University of Petroleum and Minerals, P.O. Box 989, Dhahran 31261, Saudi Arabia
| | - Patricia Concepción
- Instituto
de Tecnología Química (UPV-CSIC), Universitat Politécnica de València, Avda dels Tarongers s/n, 46022, Valencia, Spain
| | - Sara Iborra
- Instituto
de Tecnología Química (UPV-CSIC), Universitat Politécnica de València, Avda dels Tarongers s/n, 46022, Valencia, Spain
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17
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Geng H, Huang PQ. Versatile and chemoselective transformation of aliphatic and aromatic secondary amides to nitriles. Tetrahedron 2015. [DOI: 10.1016/j.tet.2015.03.094] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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18
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Li Z, Fang L, Wang J, Dong L, Guo Y, Xie Y. An Improved and Practical Synthesis of Tranexamic Acid. Org Process Res Dev 2015. [DOI: 10.1021/op500395b] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Zhenhua Li
- Collaborative
Innovation Center of Yangtze River Delta Region Green Pharmaceuticals,
College of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou 310014, P. R. China
| | - Li Fang
- Collaborative
Innovation Center of Yangtze River Delta Region Green Pharmaceuticals,
College of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou 310014, P. R. China
| | - Jian Wang
- Engineering
Research
Center of Middle-High Pressure Catalytic Hydrogenation of Zhejiang
Province, Taizhou 317300, P. R. China
| | - Liuhong Dong
- Engineering
Research
Center of Middle-High Pressure Catalytic Hydrogenation of Zhejiang
Province, Taizhou 317300, P. R. China
| | - Yanna Guo
- Engineering
Research
Center of Middle-High Pressure Catalytic Hydrogenation of Zhejiang
Province, Taizhou 317300, P. R. China
| | - Yuanyuan Xie
- Collaborative
Innovation Center of Yangtze River Delta Region Green Pharmaceuticals,
College of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou 310014, P. R. China
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19
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Nguyen TV, Lyons DJM. A novel aromatic carbocation-based coupling reagent for esterification and amidation reactions. Chem Commun (Camb) 2015; 51:3131-4. [DOI: 10.1039/c4cc09539a] [Citation(s) in RCA: 49] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Driven by aromatization: a novel tropylium-based coupling reagent has been developed to facilitate nucleophilic coupling reactions of carboxylic acids.
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20
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Organocatalysis: Key Trends in Green Synthetic Chemistry, Challenges, Scope towards Heterogenization, and Importance from Research and Industrial Point of View. ACTA ACUST UNITED AC 2014. [DOI: 10.1155/2014/402860] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
This paper purports to review catalysis, particularly the organocatalysis and its origin, key trends, challenges, examples, scope, and importance. The definition of organocatalyst corresponds to a low molecular weight organic molecule which in stoichiometric amounts catalyzes a chemical reaction. In this review, the use of the term heterogenized organocatalyst will be exclusively confined to a catalytic system containing an organic molecule immobilized onto some sort of support material and is responsible for accelerating a chemical reaction. Firstly, a brief description of the field is provided putting it in a green and sustainable perspective of chemistry. Next, research findings on the use of organocatalysts on various inorganic supports including nano(porous)materials, nanoparticles, silica, and zeolite/zeolitic materials are scrutinized in brief. Then future scope, research directions, and academic and industrial applications will be outlined. A succinct account will summarize some of the research and developments in the field. This review tries to bring many outstanding researches together and shows the vitality of the organocatalysis through several aspects.
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Zhao WT, Tang XY, Shi M. Phosphane- and Amine-Catalyzed Ring-Opening Reactions of Cyclopropenones with Isatin Derivatives: Synthesis of Carboxylated 1H-Indoles and Multisubstituted 2H-Pyran-2-ones. European J Org Chem 2014. [DOI: 10.1002/ejoc.201400077] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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22
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Nguyen TV, Bekensir A. Aromatic Cation Activation: Nucleophilic Substitution of Alcohols and Carboxylic Acids. Org Lett 2014; 16:1720-3. [DOI: 10.1021/ol5003972] [Citation(s) in RCA: 64] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Thanh V. Nguyen
- Department
of Chemistry, Curtin University, Perth, WA 6102, Australia
| | - Alp Bekensir
- Department
of Chemistry, Curtin University, Perth, WA 6102, Australia
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Yu L, Li H, Zhang X, Ye J, Liu J, Xu Q, Lautens M. Organoselenium-Catalyzed Mild Dehydration of Aldoximes: An Unexpected Practical Method for Organonitrile Synthesis. Org Lett 2014; 16:1346-9. [DOI: 10.1021/ol500075h] [Citation(s) in RCA: 127] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Lei Yu
- Zhejiang
Key Laboratory of Carbon Materials, College of Chemistry and Materials
Engineering, Wenzhou University, Wenzhou, Zhejiang 325035, China
- School
of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, Jiangsu 225002, China
- Davenport
Chemistry Laboratories, Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, ON M5S 3H6, Canada
| | - Hongyan Li
- School
of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, Jiangsu 225002, China
| | - Xu Zhang
- Zhejiang
Key Laboratory of Carbon Materials, College of Chemistry and Materials
Engineering, Wenzhou University, Wenzhou, Zhejiang 325035, China
- School
of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, Jiangsu 225002, China
| | - Jianqing Ye
- School
of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, Jiangsu 225002, China
| | - Jianping Liu
- Zhejiang
Key Laboratory of Carbon Materials, College of Chemistry and Materials
Engineering, Wenzhou University, Wenzhou, Zhejiang 325035, China
| | - Qing Xu
- Zhejiang
Key Laboratory of Carbon Materials, College of Chemistry and Materials
Engineering, Wenzhou University, Wenzhou, Zhejiang 325035, China
- School
of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, Jiangsu 225002, China
| | - Mark Lautens
- Davenport
Chemistry Laboratories, Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, ON M5S 3H6, Canada
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Yadav AK, Srivastava VP, Yadav LDS. Visible-light-mediated efficient conversion of aldoximes and primary amides into nitriles. RSC Adv 2014. [DOI: 10.1039/c3ra46553e] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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