1
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Balakrishnan MH, Sureshbabu P, Korivi R, Mannathan S. Regioselective Synthesis of 3-Substituted Isocoumarin-1-imines via Palladium-Catalyzed Denitrogenative Transannulation of 1,2,3-Benzotriazin-4(3H)-ones and Terminal Alkynes. Chem Asian J 2023; 18:e202300726. [PMID: 37711073 DOI: 10.1002/asia.202300726] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2023] [Revised: 09/13/2023] [Accepted: 09/14/2023] [Indexed: 09/16/2023]
Abstract
A palladium-catalyzed denitrogenative transannulation strategy to access various 3-substituted isocoumarin-1-imine frameworks using 1,2,3-benzotriazin-4(3H)-ones and terminal alkynes is described. The reaction is highly regioselective and tolerates a wide range of functional groups. The reaction is believed to proceed via a five-membered palladacycle intermediate extruding environmentally benign molecular nitrogen as a by-product. The utility of this method was showcased through the one-pot synthesis of biologically relevant 3-substituted isocoumarin scaffolds.
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Affiliation(s)
- Madasamy Hari Balakrishnan
- Department of Chemistry, SRM Institute of Science and Technology, Kattankulathur, Chennai, 603203, India
| | - Popuri Sureshbabu
- Department of Chemistry, SRM University AP, Amaravati, Andhra Pradesh, 522502, India
| | - Ramaraju Korivi
- Department of Chemistry, SRM University AP, Amaravati, Andhra Pradesh, 522502, India
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2
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Arooj A, Tahir K, Ullah Khan A, Khan A, Jevtovic V, El-Zahhar AA, Alghamdi MM, Al-Shehri HS, Abdu Musad Saleh E, Asghar BH. One-step fabrication of surfactant mediated Pd/SiO2, A prospect toward therapeutic and photocatalytic applications. INORG CHEM COMMUN 2022. [DOI: 10.1016/j.inoche.2022.109692] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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3
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Hu Z, Ma P, Ma N, Wang J. FeCl 3-Catalyzed Synthesis of Tanshinlactone Analogues from 1 H-Indene-1,2,3-triones and Alkynes. J Org Chem 2022; 87:10982-10989. [PMID: 35914246 DOI: 10.1021/acs.joc.2c01254] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Tanshinlactone has been found in several natural products and biologically active compounds. Herein, a new FeCl3-catalyzed strategy using 1H-indene-1,2,3-triones and alkynes as starting materials is reported to obtain various tanshinlactone derivatives. This protocol has the advantages of involving low cost, environmentally benign catalysts, simple reaction conditions, and a broad range of substrates.
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Affiliation(s)
- Zhenzhu Hu
- Department of Chemistry, College of Science, Tianjin University, Tianjin 300350, P. R. China
| | - Peng Ma
- Department of Chemistry, College of Science, Tianjin University, Tianjin 300350, P. R. China
| | - Ning Ma
- Department of Chemistry, College of Science, Tianjin University, Tianjin 300350, P. R. China
| | - Jianhui Wang
- Department of Chemistry, College of Science, Tianjin University, Tianjin 300350, P. R. China.,Collaborative Innovation Center of Chemical Science and Engineering, Tianjin 30072, P. R. China
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4
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Rehman KU, Gouda M, Zaman U, Tahir K, Khan SU, Saeed S, Khojah E, El-Beltagy A, Zaky AA, Naeem M, Khan MI, Khattak NS. Optimization of Platinum Nanoparticles (PtNPs) Synthesis by Acid Phosphatase Mediated Eco-Benign Combined with Photocatalytic and Bioactivity Assessments. NANOMATERIALS 2022; 12:nano12071079. [PMID: 35407197 PMCID: PMC9000267 DOI: 10.3390/nano12071079] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/06/2022] [Revised: 03/03/2022] [Accepted: 03/18/2022] [Indexed: 12/17/2022]
Abstract
Noble metal nanoparticles (NMNPs) are viable alternative green sources compared to the chemical available methods in several approach like Food, medical, biotechnology, and textile industries. The biological synthesis of platinum nanoparticles (PtNPs), as a strong photocatalytic agent, has proved as more effective and safer method. In this study, PtNPs were synthesized at four different temperatures (25 °C, 50 °C, 70 °C, and 100 °C). PtNPs synthesized at 100 °C were smaller and exhibited spherical morphology with a high degree of dispersion. A series of physicochemical characterizations were applied to investigate the synthesis, particle size, crystalline nature, and surface morphology of PtNPs. The biosynthesized PtNPs were tested for the photodegradation of methylene blue (MB) under visible light irradiations. The results showed that PtNPs exhibited remarkable photocatalytic activity by degrading 98% of MB only in 40 min. The acid phosphatase mediated PtNPs showed strong bacterial inhibition efficiency against S. aureus and E. coli. Furthermore, it showed high antioxidant activity (88%) against 1,1-diphenyl-2-picryl-hydrazil (DPPH). In conclusion, this study provided an overview of the applications of PtNPs in food chemistry, biotechnology, and textile industries for the deterioration of the natural and synthetic dyes and its potential application in the suppression of pathogenic microbes of the biological systems. Thus, it could be used as a novel approach in the food microbiology, biomedical and environmental applications.
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Affiliation(s)
- Khalil ur Rehman
- Institute of Chemical Sciences, Gomal University, Dera Ismail Khan 29050, Pakistan; (K.u.R.); (U.Z.); (K.T.)
| | - Mostafa Gouda
- College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou 310058, China
- Department of Nutrition and Food Science, Food Industries and Nutrition Research Institute, National Research Centre, Giza 12422, Egypt
- Correspondence: or (M.G.); (S.U.K.)
| | - Umber Zaman
- Institute of Chemical Sciences, Gomal University, Dera Ismail Khan 29050, Pakistan; (K.u.R.); (U.Z.); (K.T.)
| | - Kamran Tahir
- Institute of Chemical Sciences, Gomal University, Dera Ismail Khan 29050, Pakistan; (K.u.R.); (U.Z.); (K.T.)
| | - Shahid Ullah Khan
- Department of Biochemistry, Women Medical and Dental College, Abbottabad 22080, Pakistan
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan 430070, China;
- Correspondence: or (M.G.); (S.U.K.)
| | - Sumbul Saeed
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan 430070, China;
| | - Ebtihal Khojah
- Department of Food Science and Nutrition, College of Science, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia; (E.K.); (A.E.-B.)
| | - Alaa El-Beltagy
- Department of Food Science and Nutrition, College of Science, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia; (E.K.); (A.E.-B.)
| | - Ahmed A. Zaky
- Department of Food Technology, Food Industries and Nutrition Research Institute, National Research Centre, Giza 12422, Egypt;
| | - Mohamed Naeem
- Nutrition and Food Science of Ain Shams University Specialized Hospital, Ain Shams University, Cairo 11566, Egypt;
| | - Muhammad Imran Khan
- Department of Biomedical Sciences, Pak-Austria Fachhochschule, Institute of Applied Sciences and Technology, Mang Haripur 22620, Pakistan;
| | - Noor Saeed Khattak
- Center for Materials Science, Islamia College University, Peshawar 25120, Pakistan;
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5
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Yanai H, Kawazoe T, Ishii N, Witulski B, Matsumoto T. Regioselective Synthesis of 4-Aryl-1,3-dihydroxy-2-naphthoates through 1,2-Aryl-Migrative Ring Rearrangement Reaction and their Photoluminescence Properties. Chemistry 2021; 27:11442-11449. [PMID: 34018653 DOI: 10.1002/chem.202101459] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2021] [Indexed: 11/08/2022]
Abstract
4-Aryl-1,3-dihydroxy-2-naphthoates having the less accessible 1,2,3,4-tetrasubstituted naphthalene scaffold and that show photoluminescence emission from solid state as well as in solutions, were selectively synthesized from brominated lactol silyl ethers through the 1,2-aryl-migrative ring rearrangement reaction.
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Affiliation(s)
- Hikaru Yanai
- School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, 1432-1 Horinouchi, Hachioji, Tokyo, 192-0392, Japan
| | - Teru Kawazoe
- School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, 1432-1 Horinouchi, Hachioji, Tokyo, 192-0392, Japan
| | - Nobuyuki Ishii
- School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, 1432-1 Horinouchi, Hachioji, Tokyo, 192-0392, Japan
| | - Bernhard Witulski
- Laboratoire de Chimie Moléculaire et Thio-organique, CNRS UMR 6507, ENSICAEN & UNICaen, Normandie Univ., 6 Bvd Maréchal Juin, Caen, 14050, France
| | - Takashi Matsumoto
- School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, 1432-1 Horinouchi, Hachioji, Tokyo, 192-0392, Japan
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6
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Habert L, Diachenko I, Retailleau P, Gillaizeau I. Electrophile promoted cyclization of ortho-aryl substituted ynamides: construction of 3-amino-4-halo- or 4 seleno-isocoumarin derivatives. Org Biomol Chem 2021; 19:6623-6627. [PMID: 34282818 DOI: 10.1039/d1ob01075a] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Isocoumarins are important building blocks in medicinal chemistry. They are widespread in the core structure of biologically active compounds. Here we report the development of an efficient and highly reactive electrophilic cyclization of ortho-ynamidyl benzoate esters providing access to 3-amino-4-halo- or 4-seleno-isocoumarins in a short time (<1 min) with good yields.
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Affiliation(s)
- Loïc Habert
- Institute of Organic and Analytical Chemistry, ICOA UMR 7311 CNRS, Université d'Orléans, Pôle de chimie, Rue de Chartres, 45100 Orléans, France.
| | - Iryna Diachenko
- Institute of Organic and Analytical Chemistry, ICOA UMR 7311 CNRS, Université d'Orléans, Pôle de chimie, Rue de Chartres, 45100 Orléans, France.
| | - Pascal Retailleau
- Institut de Chimie des Substances Naturelles, UPR 2301, CNRS, Gif-sur-Yvette, France
| | - Isabelle Gillaizeau
- Institute of Organic and Analytical Chemistry, ICOA UMR 7311 CNRS, Université d'Orléans, Pôle de chimie, Rue de Chartres, 45100 Orléans, France.
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7
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Shinde MH, Ramana CV. An Apparent Umpolung Reactivity of Indole through [Au]-Catalysed Cyclisation and Lewis-Acid-Mediated Allylation. Chemistry 2020; 26:17171-17175. [PMID: 32970893 DOI: 10.1002/chem.202003441] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2020] [Revised: 09/07/2020] [Indexed: 11/10/2022]
Abstract
The sequential functionalization of indole C2 and C3 in an umpolung fashion was executed with a predesigned substrate and choice of reagents. The developed method comprises gold-catalysed alkynol cycloisomerisation/intramolecular addition of C2 of indole and subsequent BF3 ⋅OEt2 -mediated regioselective C3 allylation, resulting in the synthesis of the functionalized indoloisoquinolinone scaffold. The reaction involves 5-endo-alkynol cycloisomerisation and the dearomative addition of indole C2 to the intermediate oxocarbenium cation, which results in two equilibrating fused and spiropentacyclic intermediates, which upon treatment with allyl silane in the presence of BF3 ⋅OEt2 , undergo selective indole C3 allylation. Other nucleophiles, such as hydride, azide and indole, were also found to be compatible with this process.
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Affiliation(s)
- Mahesh H Shinde
- Division of Organic Chemistry, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune, 411008, India.,Academy of Scientific and Innovative Research (AcSIR), Anusandhan Bhawan, 2 Rafi Marg, New Delhi, 110002, India
| | - Chepuri V Ramana
- Division of Organic Chemistry, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune, 411008, India.,Academy of Scientific and Innovative Research (AcSIR), Anusandhan Bhawan, 2 Rafi Marg, New Delhi, 110002, India
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8
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A facile fabrication of silver/copper oxide nanocomposite: An innovative entry in photocatalytic and biomedical materials. Photodiagnosis Photodyn Ther 2020; 31:101814. [DOI: 10.1016/j.pdpdt.2020.101814] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2020] [Revised: 04/27/2020] [Accepted: 05/04/2020] [Indexed: 11/22/2022]
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9
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Kaur N, Ahlawat N, Verma Y, Grewal P, Bhardwaj P, Jangid NK. Cu-assisted C–N bond formations in six-membered N-heterocycle synthesis. SYNTHETIC COMMUN 2020. [DOI: 10.1080/00397911.2019.1695278] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Navjeet Kaur
- Department of Chemistry, Banasthali Vidyapith, Banasthali, India
| | - Neha Ahlawat
- Department of Chemistry, Banasthali Vidyapith, Banasthali, India
| | - Yamini Verma
- Department of Chemistry, Banasthali Vidyapith, Banasthali, India
| | - Pooja Grewal
- Department of Chemistry, Banasthali Vidyapith, Banasthali, India
| | - Pranshu Bhardwaj
- Department of Chemistry, Banasthali Vidyapith, Banasthali, India
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10
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Santhi J, Baire B. An Unusual Conversion of 2‐(Alkynonyl)Alkynylbenzenes to Isocoumarins by a Retro‐Favorskii‐like Degradation. Chem Asian J 2019; 14:3161-3165. [DOI: 10.1002/asia.201900745] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2019] [Revised: 07/23/2019] [Indexed: 12/25/2022]
Affiliation(s)
- Jampani Santhi
- Department of ChemistryIndian Institute of Technology Madras Chennai Tamilnadu 600036 India
| | - Beeraiah Baire
- Department of ChemistryIndian Institute of Technology Madras Chennai Tamilnadu 600036 India
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11
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Luo MJ, Zhang TT, Cai FJ, Li JH, He DL. Decarboxylative [4+2] annulation of arylglyoxylic acids with internal alkynes using the anodic ruthenium catalysis. Chem Commun (Camb) 2019; 55:7251-7254. [PMID: 31168528 DOI: 10.1039/c9cc03210j] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
A new electrochemical decarboxylative [4+2] annulation of arylglyoxylic acids with internal alkynes involving C-H functionalization by means of a cooperative anode and ruthenium catalysis is presented. This reaction represents a mechanistically novel strategy as an ideal supplement to the decarboxylative [4+2] annulation methodology by employing an electrooxidative process to avoid the use of an additional external oxidizing reagent and utilizing H2O as the carboxyl oxygen atom source to be engaged in the synthesis of 1H-isochromen-1-ones.
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Affiliation(s)
- Mu-Jia Luo
- State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University, Changsha 410082, China. and Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang 330063, China
| | - Ting-Ting Zhang
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang 330063, China
| | - Fang-Jun Cai
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang 330063, China
| | - Jin-Heng Li
- State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University, Changsha 410082, China. and Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang 330063, China and State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, China
| | - De-Liang He
- State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University, Changsha 410082, China.
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12
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Liu G, Kuang G, Zhang X, Lu N, Fu Y, Peng Y, Zhou Y. Iridium-Catalyzed Regioselective Synthesis of Trifluoromethylated Isocoumarins through Annulation of Benzoic Acids with Trifluoromethylated Alkynes. Org Lett 2019; 21:3043-3047. [PMID: 30912433 DOI: 10.1021/acs.orglett.9b00572] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
An unprecedented Ir-catalyzed oxidative coupling of benzoic acids with trifluoromethylated alkynes was successfully developed to provide diverse trifluoromethylated isocoumarins in moderate to good yields. This new practical procedure was highlighted by mild reaction conditions, broad substrate scope, good regioselectivity, high efficiency, and easy operation.
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Affiliation(s)
- Guangyuan Liu
- Key Laboratory of Fuctional Small Organic Molecule, Ministry of Education, College of Chemistry and Chemical Engineering , Jiangxi Normal University , No. 99 Ziyang Road , Nanchang 330022 , China
| | - Guanghua Kuang
- Key Laboratory of Fuctional Small Organic Molecule, Ministry of Education, College of Chemistry and Chemical Engineering , Jiangxi Normal University , No. 99 Ziyang Road , Nanchang 330022 , China
| | - Xingxing Zhang
- Key Laboratory of Fuctional Small Organic Molecule, Ministry of Education, College of Chemistry and Chemical Engineering , Jiangxi Normal University , No. 99 Ziyang Road , Nanchang 330022 , China
| | - Naihao Lu
- Key Laboratory of Fuctional Small Organic Molecule, Ministry of Education, College of Chemistry and Chemical Engineering , Jiangxi Normal University , No. 99 Ziyang Road , Nanchang 330022 , China
| | - Yang Fu
- Key Laboratory of Fuctional Small Organic Molecule, Ministry of Education, College of Chemistry and Chemical Engineering , Jiangxi Normal University , No. 99 Ziyang Road , Nanchang 330022 , China
| | - Yiyuan Peng
- Key Laboratory of Fuctional Small Organic Molecule, Ministry of Education, College of Chemistry and Chemical Engineering , Jiangxi Normal University , No. 99 Ziyang Road , Nanchang 330022 , China
| | - Yirong Zhou
- Key Laboratory of Fuctional Small Organic Molecule, Ministry of Education, College of Chemistry and Chemical Engineering , Jiangxi Normal University , No. 99 Ziyang Road , Nanchang 330022 , China.,Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, School of Pharmacy, Tongji Medical College , Huazhong University of Science and Technology , No. 13 Hangkong Road , Wuhan 430030 , China
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13
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Saikia P, Gogoi S. Isocoumarins: General Aspects and Recent Advances in their Synthesis. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201800019] [Citation(s) in RCA: 55] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Pallabi Saikia
- Department of Chemistry; Assam Kaziranga University; Jorhat - 785006 Assam India
| | - Sanjib Gogoi
- Chemical Sciences & Technology Division, CSIR - North East Institute of Science and Technology; AcSIR; Jorhat - 785006 Assam India
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14
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Chen Y, Liu Z, Liu H, Pan Y, Li J, Liu L, She Z. Dichloroisocoumarins with Potential Anti-Inflammatory Activity from the Mangrove Endophytic Fungus Ascomycota sp. CYSK-4. Mar Drugs 2018; 16:md16020054. [PMID: 29425114 PMCID: PMC5852482 DOI: 10.3390/md16020054] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2017] [Revised: 01/26/2018] [Accepted: 02/02/2018] [Indexed: 02/02/2023] Open
Abstract
Three new isocoumarins—dichlorodiaportintone (1), desmethyldichlorodiaportintone (2) and desmethyldichlorodiaportinol (3)—as well as six known analogues (4–9) were isolated from the culture of the mangrove endophytic fungus Ascomycota sp. CYSK-4 from Pluchea indica. Their structures were elucidated by analysis of spectroscopic data. The absolute configuration of compounds 1 and 2 were determined by the modified Mosher’s method. Compound 2 showed significant anti-inflammatory activity by inhibiting the production of NO in LPS-induced RAW 264.7 cells with IC50 value of 15.8 μM, while compounds 1, 5, and 6 exhibited weak activities with IC50 values of 41.5, 33.6, and 67.2 μM, respectively. In addition, compounds 1, 5, and 6 showed antibacterial effects against Staphylococcus aureus, Bacillus subtilis, Escherichia coli, Klebsiella pneumoniae, and Acinetobacter calcoaceticus with the MIC values in the range of 25–50 μg·mL−1.
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Affiliation(s)
- Yan Chen
- School of Marine Sciences, Sun Yat-sen University, Guangzhou 510006, China.
| | - Zhaoming Liu
- School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, China.
| | - Hongju Liu
- School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, China.
- School of Pharmacy, Guangdong Medical University, Dongguan 523808, China.
| | - Yahong Pan
- School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, China.
| | - Jing Li
- School of Pharmacy, Guangdong Medical University, Dongguan 523808, China.
| | - Lan Liu
- School of Marine Sciences, Sun Yat-sen University, Guangzhou 510006, China.
- South China Sea Bio-Resource Exploitation and Utilization Collaborative Innovation Center, Sun Yat-Sen University, Guangzhou 510275, China.
| | - Zhigang She
- School of Marine Sciences, Sun Yat-sen University, Guangzhou 510006, China.
- School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, China.
- South China Sea Bio-Resource Exploitation and Utilization Collaborative Innovation Center, Sun Yat-Sen University, Guangzhou 510275, China.
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15
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Copper-catalyzed annulation of 2-bromobenzoic esters with terminal alkynes towards 3-substituted isocoumarins. Tetrahedron Lett 2017. [DOI: 10.1016/j.tetlet.2017.05.019] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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16
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Antibacterial activity of biochemically capped iron oxide nanoparticles: A view towards green chemistry. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2017; 170:241-246. [DOI: 10.1016/j.jphotobiol.2017.04.020] [Citation(s) in RCA: 74] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/29/2016] [Revised: 04/12/2017] [Accepted: 04/17/2017] [Indexed: 11/24/2022]
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17
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Saeed A, Haroon M, Muhammad F, Larik FA, Hesham ES, Channar PA. Advances in transition-metal-catalyzed synthesis of 3-substituted isocoumarins. J Organomet Chem 2017. [DOI: 10.1016/j.jorganchem.2017.02.016] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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18
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Neog K, Dutta D, Das B, Gogoi P. Coumarin to Isocoumarin: One-Pot Synthesis of 3-Substituted Isocoumarins from 4-Hydroxycoumarins and Benzyne Precursors. Org Lett 2017; 19:730-733. [DOI: 10.1021/acs.orglett.7b00027] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Kashmiri Neog
- Applied Organic
Chemistry Group, Chemical Science and Technology Division, CSIR-North East Institute of Science and Technology, Jorhat 785006, India
| | - Dhiraj Dutta
- Applied Organic
Chemistry Group, Chemical Science and Technology Division, CSIR-North East Institute of Science and Technology, Jorhat 785006, India
| | - Babulal Das
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati 781039, India
| | - Pranjal Gogoi
- Applied Organic
Chemistry Group, Chemical Science and Technology Division, CSIR-North East Institute of Science and Technology, Jorhat 785006, India
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19
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Tahir K, Nazir S, Ahmad A, Li B, Khan AU, Khan ZUH, Khan FU, Khan QU, Khan A, Rahman AU. Facile and green synthesis of phytochemicals capped platinum nanoparticles and in vitro their superior antibacterial activity. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2017; 166:246-251. [DOI: 10.1016/j.jphotobiol.2016.12.016] [Citation(s) in RCA: 100] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/28/2016] [Revised: 12/05/2016] [Accepted: 12/10/2016] [Indexed: 11/25/2022]
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20
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Tahir K, Nazir S, Li B, Ahmad A, Nasir T, Khan AU, Shah SAA, Khan ZUH, Yasin G, Hameed MU. Sapium sebiferum leaf extract mediated synthesis of palladium nanoparticles and in vitro investigation of their bacterial and photocatalytic activities. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2016; 164:164-173. [PMID: 27689741 DOI: 10.1016/j.jphotobiol.2016.09.030] [Citation(s) in RCA: 65] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/30/2016] [Accepted: 09/22/2016] [Indexed: 11/30/2022]
Abstract
There is a growing need to introduce eco-friendly and sustainable procedures for the synthesis of metal nanoparticles that include a mild reaction conditions, simple reaction setup, use of nontoxic medium such as water and plant extract, cost effectiveness as well as greater efficiency for biomedical and catalytic applications. For this purpose, small and highly dispersed palladium nanoparticles (PdNPs) were prepared by eco-friendly and cost effective green method using water soluble leaf extract of Sapium sebiferum as a reducing and capping agent. The formation of PdNPs was optimized at various temperatures i.e. (30°C, 60°C and 90°C) and different leaves extract (5mL and 10mL) in order to control their size and shape. The results indicated that PdNPs synthesized at 10mL leaf extract concentration and 60°C temperature have small sized (5nm) and spherical shape. The nanoparticles formation, their dispersion, size and shape were confirmed by various characterization techniques i.e. UV-Vis spectroscopy, Fourier-transform infrared (FT-IR) spectroscopy, X-ray diffraction (XRD), scanning electron microscopy (SEM), high resolution transmission electron microscopy (HRTEM), thermo gravimetric analysis (TGA) and Dynamic light scattering technique (DLS) analysis. The biologically synthesized PdNPs were tested for size dependent photo degradation of methylene blue and inactivation of bacteria. The PdNPs synthesized at optimized condition (10mL extract concentration and 60°C) have strong photo catalytic activity and reduced 90% methylene blue in 70min. The optimized PdNPs also showed strong bacterial inhibition against Staphylococcus aureus 29(±0.8mm), Bacillus subtilis 19(±0.6mm) and pseudomonas aeruginosa 11(±0.6mm). The results of this examination demonstrate effective applications of extremely active PdNPs.
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Affiliation(s)
- Kamran Tahir
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, PR China; Institute of Chemical Sciences, Gomal University, D. I. Khan, KP, Pakistan
| | - Sadia Nazir
- Institute of Chemical Sciences, Gomal University, D. I. Khan, KP, Pakistan
| | - Baoshan Li
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, PR China.
| | - Aftab Ahmad
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, PR China
| | - Tabassum Nasir
- Department of Physics, Gomal University, D. I. Khan, KP, Pakistan
| | - Arif Ullah Khan
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, PR China
| | - Sayyed Asim Ali Shah
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, PR China
| | - Zia Ul Haq Khan
- Department of Chemistry, University of Science and Technology, Bannu 28100, KP, Pakistan
| | - Ghulam Yasin
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, PR China
| | - Muhammad Usman Hameed
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, PR China
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21
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Lahyani A, Trabelsi M. Ultrasonic-assisted synthesis of flavones by oxidative cyclization of 2'-hydroxychalcones using iodine monochloride. ULTRASONICS SONOCHEMISTRY 2016; 31:626-630. [PMID: 26964989 DOI: 10.1016/j.ultsonch.2016.02.018] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/08/2016] [Revised: 02/10/2016] [Accepted: 02/10/2016] [Indexed: 06/05/2023]
Abstract
This paper presents an efficient methodology for the synthesis of flavones via the oxidative cyclization of 2'-hydroxychalcones in the presence of iodine monochloride with DMSO under ultrasound irradiation. Ultrasonic irradiation enhances the cyclization reaction and leads to reduced reaction time at lower reaction temperatures while generating flavones with high yields.
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Affiliation(s)
- Achraf Lahyani
- Laboratory of Natural Substances, Faculty of Sciences, University of Sfax, Route de Soukra km 3.5, 3038 Sfax, Tunisia
| | - Mahmoud Trabelsi
- Laboratory of Natural Substances, Faculty of Sciences, University of Sfax, Route de Soukra km 3.5, 3038 Sfax, Tunisia.
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22
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Praveen C, Ananth DB. Design, synthesis and cytotoxicity of pyrano[4,3-b]indol-1(5H)-ones: A hybrid pharmacophore approach via gold catalyzed cyclization. Bioorg Med Chem Lett 2016; 26:2507-2512. [DOI: 10.1016/j.bmcl.2016.03.087] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2016] [Revised: 03/16/2016] [Accepted: 03/25/2016] [Indexed: 01/29/2023]
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23
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Faizi D, Issaian A, Davis AJ, Blum SA. Catalyst-Free Synthesis of Borylated Lactones from Esters via Electrophilic Oxyboration. J Am Chem Soc 2016; 138:2126-9. [PMID: 26849770 PMCID: PMC4768685 DOI: 10.1021/jacs.5b12989] [Citation(s) in RCA: 93] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2015] [Indexed: 11/29/2022]
Abstract
A catalyst-free oxyboration reaction of alkynes is developed. The resulting borylated isocoumarins and 2-pyrones are isolated as boronic acids, pinacolboronate esters, or potassium organotrifluoroborate salts, providing a variety of bench-stable organoboron building blocks for downstream functionalization. This method has functional group compatibility, is scalable, and proceeds with readily available materials: B-chlorocatecholborane and methyl esters. Mechanistic studies indicate that the B-chlorocatecholborane acts as a carbophilic Lewis acid toward the alkyne, providing a mechanistically distinct pathway for oxyboration that avoids B-O σ bond formation and enables this catalyst-free route.
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Affiliation(s)
- Darius
J. Faizi
- Department of Chemistry, University of California, Irvine, California 92617-2025, United States
| | - Adena Issaian
- Department of Chemistry, University of California, Irvine, California 92617-2025, United States
| | - Ashlee J. Davis
- Department of Chemistry, University of California, Irvine, California 92617-2025, United States
| | - Suzanne A. Blum
- Department of Chemistry, University of California, Irvine, California 92617-2025, United States
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24
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Panda N, Mishra P, Mattan I. Synthesis of Isocoumarins via Silver(I)-Mediated Annulation of Enol Esters. J Org Chem 2016; 81:1047-56. [DOI: 10.1021/acs.joc.5b02602] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Niranjan Panda
- Department of Chemistry, National Institute of Technology Rourkela, Rourkela-769008, Odisha, India
| | - Priyadarshini Mishra
- Department of Chemistry, National Institute of Technology Rourkela, Rourkela-769008, Odisha, India
| | - Irshad Mattan
- Department of Chemistry, National Institute of Technology Rourkela, Rourkela-769008, Odisha, India
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25
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Aggarwal T, Kumar S, Verma AK. Iodine-mediated synthesis of heterocycles via electrophilic cyclization of alkynes. Org Biomol Chem 2016; 14:7639-53. [DOI: 10.1039/c6ob01054g] [Citation(s) in RCA: 96] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Syntheses of heterocyclesvia5-exoor 6-endo-digiodocyclizations from alkynes.
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Affiliation(s)
- Trapti Aggarwal
- Synthetic Organic Chemistry Research Laboratory
- Department of Chemistry
- University of Delhi
- Delhi
- India
| | - Sonu Kumar
- Synthetic Organic Chemistry Research Laboratory
- Department of Chemistry
- University of Delhi
- Delhi
- India
| | - Akhilesh K. Verma
- Synthetic Organic Chemistry Research Laboratory
- Department of Chemistry
- University of Delhi
- Delhi
- India
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26
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Liu H, Yang Y, Wu J, Wang XN, Chang J. Regioselective synthesis of 3,4-disubstituted isocoumarins through the Pd-catalyzed annulation of 2-iodoaromatic acids with ynamides. Chem Commun (Camb) 2016; 52:6801-4. [DOI: 10.1039/c6cc01565d] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A Pd(0)-catalyzed annulation of 2-iodoaromatic acids with ynamides is described for the efficient synthesis of 3,4-disubstituted isocoumarins with excellent regioselectivities.
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Affiliation(s)
- Hongxu Liu
- College of Chemistry and Molecular Engineering
- Zhengzhou University
- Zhengzhou
- P. R. China
| | - Yanyan Yang
- College of Chemistry and Molecular Engineering
- Zhengzhou University
- Zhengzhou
- P. R. China
| | - Jie Wu
- College of Chemistry and Molecular Engineering
- Zhengzhou University
- Zhengzhou
- P. R. China
| | - Xiao-Na Wang
- Collaborative Innovation Center of New Drug Research and Safety Evaluation
- Henan Province, and School of Pharmaceutical Sciences
- Zhengzhou University
- Zhengzhou
- P. R. China
| | - Junbiao Chang
- Collaborative Innovation Center of New Drug Research and Safety Evaluation
- Henan Province, and School of Pharmaceutical Sciences
- Zhengzhou University
- Zhengzhou
- P. R. China
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27
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Tahir K, Nazir S, Ahmad A, Li B, Ali Shah SA, Khan AU, Khan GM, Khan QU, Haq Khan ZU, Khan FU. Biodirected synthesis of palladium nanoparticles using Phoenix dactylifera leaves extract and their size dependent biomedical and catalytic applications. RSC Adv 2016. [DOI: 10.1039/c6ra11409a] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Graphical representation of green synthesis of PdNPs and their biological and catalytic applications.
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28
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Chen T, Yeung YY. Trifluoroacetic acid catalyzed highly regioselective bromocyclization of styrene-type carboxylic acid. Org Biomol Chem 2016; 14:4571-5. [DOI: 10.1039/c6ob00756b] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
A trifluoroacetic acid catalyzed highly 6-endo regioselective bromocyclization of styrene-type carboxylic acid has been developed.
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Affiliation(s)
- Tao Chen
- Department of Chemistry
- National University of Singapore
- Singapore 117543
- Singapore
| | - Ying-Yeung Yeung
- Department of Chemistry
- National University of Singapore
- Singapore 117543
- Singapore
- Department of Chemistry
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29
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Danilkina NA, Gurskaya LY, Vasilyev AV, Balova IA. Towards Isocoumarin-Fused Enediyne Systems through the Electrophilic Cyclization of Methylo-(Buta-1,3-diynyl)benzoates. European J Org Chem 2015. [DOI: 10.1002/ejoc.201501262] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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30
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Tahir K, Nazir S, Li B, Khan AU, Khan ZUH, Ahmad A, Khan QU, Zhao Y. Enhanced visible light photocatalytic inactivation of Escherichia coli using silver nanoparticles as photocatalyst. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2015; 153:261-6. [DOI: 10.1016/j.jphotobiol.2015.09.015] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/23/2015] [Revised: 09/11/2015] [Accepted: 09/14/2015] [Indexed: 11/29/2022]
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31
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Pistoia RP, Roehrs JA, Back DF, Zeni G. Synthesis of 2-AcylselenophenesviaIodine-Promoted Nucleophilic Cyclization of [2-(Butylselanyl)phenyl]-propynols. Adv Synth Catal 2015. [DOI: 10.1002/adsc.201500569] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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32
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Sudarshan K, Manna MK, Aidhen IS. Synthesis of 3-Arylisocoumarins by Using Acyl Anion Chemistry and Synthesis of Thunberginol A and Cajanolactone A. European J Org Chem 2015. [DOI: 10.1002/ejoc.201403524] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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33
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Feng CC, Chen GD, Zhao YQ, Xin SC, Li S, Tang JS, Li XX, Hu D, Liu XZ, Gao H. New Isocoumarins from a Cold-Adapted Fungal StrainMucorsp. and Their Developmental Toxicity to Zebrafish Embryos. Chem Biodivers 2014; 11:1099-108. [DOI: 10.1002/cbdv.201400005] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2014] [Indexed: 11/07/2022]
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34
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Okuma K, Hirano K, Tanabe Y, Itoyama R, Miura A, Nagahora N, Shioji K. Novel One-pot Synthesis of Polysubstituted Isocoumarins from Arynes and Trifluoroacetylated β-Diketones. CHEM LETT 2014. [DOI: 10.1246/cl.131112] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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35
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36
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Nagahora N, Wasano T, Nozaki K, Ogawa T, Nishijima S, Motomatsu D, Shioji K, Okuma K. The First Formation of (1Z)-1-Alkylidene-1H-isobenzofuranium Amides and 1H-Inden-1-ones: Acid-Promoted 5-exoCyclization and Hydration/Aldol Condensation Reactions ofo-Ethynylbenzophenones. European J Org Chem 2014. [DOI: 10.1002/ejoc.201301599] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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37
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Kumar MR, Irudayanathan FM, Moon JH, Lee S. Regioselective One-Pot Synthesis of Isocoumarins and Phthalides from 2-Iodobenzoic Acids and Alkynes by Temperature Control. Adv Synth Catal 2013. [DOI: 10.1002/adsc.201300561] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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38
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Stein AL, Bilheri FN, Rosário AR, Zeni G. FeCl3-diorganyl dichalcogenides promoted cyclization of 2-organochalcogen-3-alkynylthiophenes: synthesis of chalcogenophene[2,3-b]thiophenes. Org Biomol Chem 2013; 11:2972-8. [PMID: 23529416 DOI: 10.1039/c3ob27498e] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We report here our results on the FeCl3-diorganyl dichalcogenides intramolecular cyclization of 2-organochalcogen-3-alkynylthiophenes. The cyclization reaction proceeded cleanly under mild reaction conditions giving the (S)-Se-, (S)-S- and (S)-Te-heterocycles in good yields. In addition, the obtained chalcogenophenes were readily transformed into more complex products using the palladium cross-coupling reaction with boronic acids. Conversely, using a metal-halogen exchange reaction with n-BuLi, the chalcogenophenes produced the lithium-intermediate which was trapped with aldehyde furnishing the desired secondary alcohol in good yield.
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Affiliation(s)
- André L Stein
- Laboratório de Síntese, Reatividade, Avaliação Farmacológica e Toxicológica de Organocalcogênios, CCNE, UFSM, Santa Maria - Rio Grande do Sul, 97105-900, Brazil
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39
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Chen B, Ma S. Tandem Michael Addition/Cyclization Reaction of 2,3-Allenoates with Organozincs: Facile Synthesis of Isocoumarins. Org Lett 2013; 15:3884-7. [DOI: 10.1021/ol401625t] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Bo Chen
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, P. R. China, and Shanghai Key Laboratory of Green Chemistry and Chemical Process, Department of Chemistry, East China Normal University, 3663 North Zhongshan Lu, Shanghai, 200062, P. R. China
| | - Shengming Ma
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, P. R. China, and Shanghai Key Laboratory of Green Chemistry and Chemical Process, Department of Chemistry, East China Normal University, 3663 North Zhongshan Lu, Shanghai, 200062, P. R. China
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40
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PRAVEEN CHANDRASEKARAN, DHEENKUMAR P, PERUMAL PT. Super acid catalysed sequential hydrolysis/cycloisomerization of o-(acetylenic)benzamides under microwave condition: Synthesis, antinociceptive and antiinflammatory activity of substituted isocoumarins. J CHEM SCI 2013. [DOI: 10.1007/s12039-012-0325-2] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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41
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Sharma N, Asthana M, Nandini D, Singh R, Singh RM. An economical nucleophilic route toward facile synthesis of pyrano[4,3-b]quinolin-1-ones via 6-endo-dig cyclization of o-alkynylquinoline esters. Tetrahedron 2013. [DOI: 10.1016/j.tet.2012.12.068] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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42
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Guo XX. Synthesis of Isocoumarin Derivatives by Copper-Catalyzed Addition of o-Halobenzoic Acids to Active Internal Alkynes. J Org Chem 2013; 78:1660-4. [DOI: 10.1021/jo302499k] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Xun-Xiang Guo
- Shanghai Center for Systems
Biomedicine, Ministry of
Education Key Laboratory of Systems Biomedicine, Shanghai Jiao Tong University, Shanghai 200240, China
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43
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Gai RM, Schumacher RF, Back DF, Zeni G. Regioselective Formation of Tetrahydroselenophenes via 5-exo-dig-Cyclization of 1-Butylseleno-4-alkynes. Org Lett 2012; 14:6072-5. [DOI: 10.1021/ol302919b] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Rafaela M. Gai
- Laboratório de Síntese, Reatividade, Avaliação Farmacológica e Toxicológica de Organocalcogênios, CCNE, UFSM, Santa Maria, Rio Grande do Sul, Brazil, 97105-900, and Laboratório de Materiais Inorgânicos, CCNE, UFSM, Santa Maria, Rio Grande do Sul, Brazil, 97105-900
| | - Ricardo F. Schumacher
- Laboratório de Síntese, Reatividade, Avaliação Farmacológica e Toxicológica de Organocalcogênios, CCNE, UFSM, Santa Maria, Rio Grande do Sul, Brazil, 97105-900, and Laboratório de Materiais Inorgânicos, CCNE, UFSM, Santa Maria, Rio Grande do Sul, Brazil, 97105-900
| | - Davi F. Back
- Laboratório de Síntese, Reatividade, Avaliação Farmacológica e Toxicológica de Organocalcogênios, CCNE, UFSM, Santa Maria, Rio Grande do Sul, Brazil, 97105-900, and Laboratório de Materiais Inorgânicos, CCNE, UFSM, Santa Maria, Rio Grande do Sul, Brazil, 97105-900
| | - Gilson Zeni
- Laboratório de Síntese, Reatividade, Avaliação Farmacológica e Toxicológica de Organocalcogênios, CCNE, UFSM, Santa Maria, Rio Grande do Sul, Brazil, 97105-900, and Laboratório de Materiais Inorgânicos, CCNE, UFSM, Santa Maria, Rio Grande do Sul, Brazil, 97105-900
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44
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Aggarwal T, Kumar S, Dhaked DK, Tiwari RK, Bharatam PV, Verma AK. Site-Selective Electrophilic Cyclization and Subsequent Ring-Opening: A Synthetic Route to Pyrrolo[1,2-a]quinolines and Indolizines. J Org Chem 2012; 77:8562-73. [DOI: 10.1021/jo3015374] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Trapti Aggarwal
- Synthetic
Organic Chemistry Research Laboratory, Department of Chemistry, University of Delhi, Delhi, 110007, India
| | - Sonu Kumar
- Synthetic
Organic Chemistry Research Laboratory, Department of Chemistry, University of Delhi, Delhi, 110007, India
| | | | - Rakesh K. Tiwari
- Synthetic
Organic Chemistry Research Laboratory, Department of Chemistry, University of Delhi, Delhi, 110007, India
- Department of Biomedical & Pharmaceutical Sciences, University of Rhode Island, Kingston, Rhode Island, United States
| | | | - Akhilesh K. Verma
- Synthetic
Organic Chemistry Research Laboratory, Department of Chemistry, University of Delhi, Delhi, 110007, India
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45
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Cho CH, Shi F, Jung DI, Neuenswander B, Lushington GH, Larock RC. Solution-phase synthesis of a highly substituted furan library. ACS COMBINATORIAL SCIENCE 2012; 14:403-14. [PMID: 22612549 DOI: 10.1021/co300040q] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A library of furans has been synthesized by iodocyclization and further diversified by palladium-catalyzed coupling processes. The key intermediate 3-iodofurans have been prepared by the electrophilic iodocyclization of 2-iodo-2-alken-1-ones in the presence of various nucleophiles in good to excellent yields under mild reaction conditions. These 3-iodofurans are the key components for library generation through subsequent elaboration by palladium-catalyzed processes, such as Suzuki-Miyaura, Sonagashira, Heck, aminocarbonylation, and carboalkoxylation chemistry to afford a diverse set of 2,3,4,5-tetrasubstituted furans.
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Affiliation(s)
- Chul-Hee Cho
- Department of Chemistry, Iowa State University, Ames, Iowa 50011, United States
| | - Feng Shi
- Department of Chemistry, Iowa State University, Ames, Iowa 50011, United States
| | - Dai-Il Jung
- Department of Chemistry, Iowa State University, Ames, Iowa 50011, United States
- Department of Chemistry, Dong-A University, Saha-Gu, Busan 604-714, Korea
| | - Benjamin Neuenswander
- NIH Center of Excellence in Chemical Methodologies and Library Development, University of Kansas, Lawrence, Kansas 66047, United States
| | - Gerald H. Lushington
- NIH Center of Excellence in Chemical Methodologies and Library Development, University of Kansas, Lawrence, Kansas 66047, United States
| | - Richard C. Larock
- Department of Chemistry, Iowa State University, Ames, Iowa 50011, United States
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46
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ortho-Induced transition-metal-free C-arylation cyclization reaction for the synthesis of polysubstituted isocoumarins. Tetrahedron 2012. [DOI: 10.1016/j.tet.2012.04.111] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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47
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Vendrell M, Zhai D, Er JC, Chang YT. Combinatorial strategies in fluorescent probe development. Chem Rev 2012; 112:4391-420. [PMID: 22616565 DOI: 10.1021/cr200355j] [Citation(s) in RCA: 458] [Impact Index Per Article: 38.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Marc Vendrell
- Laboratory of Bioimaging Probe Development, Singapore Bioimaging Consortium, Agency for Science, Technology and Research (A*STAR), 11 Biopolis Way, 138667 Singapore.
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48
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Majetich G, L. Grove J. Synthesis of 8-Hydroxyisochromenes and 8-Hydroxyisocoumarins from 3-Ethoxycyclohex-2-en-1-one. HETEROCYCLES 2012. [DOI: 10.3987/com-11-s(p)73] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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49
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Dieudonné-Vatran A, Azoulay M, Florent JC. A new access to 3-substituted-1(2H)-isoquinolone by tandem palladium-catalyzed intramolecular aminocarbonylation annulation. Org Biomol Chem 2012; 10:2683-91. [DOI: 10.1039/c2ob06852d] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Gai BM, Stein AL, Roehrs JA, Bilheri FN, Nogueira CW, Zeni G. Synthesis and antidepressant-like activity of selenophenes obtained via iron(III)-PhSeSePh-mediated cyclization of Z-selenoenynes. Org Biomol Chem 2011; 10:798-807. [PMID: 22120691 DOI: 10.1039/c1ob06548c] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
We present here the synthesis and antidepressant-like action of a series of 2,5-disubstituted-3-(organoseleno)-selenophenes prepared by a novel synthetic route, the FeCl(3)-diorganyl dichalcogenide-mediated intramolecular cyclization of (Z)-chalcogenoenynes. The cyclized products were obtained in good yields. The results showed that 2c, 2d, 2e and 2o, evaluated in the mouse forced-swimming test, elicited an antidepressant-like activity. The studies clearly show that the phenyl group at the 2-position and an organoselenium group at the 3-position of the selenophene ring are essential for the antidepressant-like activity of selenophenes. A close inspection of the results also revealed that the fluorophenyl portion in the organoselenium group is fundamental for the antidepressant-like action of this class of organochalcogens.
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Affiliation(s)
- Bibiana M Gai
- Laboratório de Síntese, Reatividade, Avaliação Farmacológica e Toxicológica de Organocalcogênios, CCNE, UFSM, Santa Maria-Rio Grande do Sul, Brasil
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