1
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Chalotra N, Shah IH, Raheem S, Rizvi MA, Shah BA. Visible-Light-Promoted Oxidative Annulation of Naphthols and Alkynes: Synthesis of Functionalized Naphthofurans. J Org Chem 2021; 86:16770-16784. [PMID: 34726928 DOI: 10.1021/acs.joc.1c01992] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
A visible-light-mediated site-selective oxidative annulation of naphthols with alkynes for the synthesis of functionalized naphthofurans has been developed. The reaction relies on the in situ formation of an electron donor acceptor pair between phenylacetylene and thiophenol as the light-absorbing system to obviate the requirement of an added photocatalyst. The protocol facilitates the transformation of 1-naphthol and 2-naphthol as well as 1,4-naphthoquinone into a wide variety of highly functionalized naphthofurans.
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Affiliation(s)
- Neha Chalotra
- Academy of Scientific and Industrial Research (AcSIR), Ghaziabad 201002, India.,Natural Product & Medicinal Chemistry, CSIR-Indian Institute of Integrative Medicine, Jammu 180001, India
| | - Iftkhar Hussain Shah
- Academy of Scientific and Industrial Research (AcSIR), Ghaziabad 201002, India.,Natural Product & Medicinal Chemistry, CSIR-Indian Institute of Integrative Medicine, Jammu 180001, India
| | - Shabnam Raheem
- Department of Chemistry, University of Kashmir, Srinagar 190006, India
| | | | - Bhahwal Ali Shah
- Academy of Scientific and Industrial Research (AcSIR), Ghaziabad 201002, India.,Natural Product & Medicinal Chemistry, CSIR-Indian Institute of Integrative Medicine, Jammu 180001, India
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2
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Fairoosa J, Neetha M, Anilkumar G. Recent developments and perspectives in the copper-catalyzed multicomponent synthesis of heterocycles. RSC Adv 2021; 11:3452-3469. [PMID: 35424324 PMCID: PMC8694354 DOI: 10.1039/d0ra10472h] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2020] [Accepted: 01/08/2021] [Indexed: 12/11/2022] Open
Abstract
Heterocyclic compounds have become an inevitable part of organic chemistry due to their ubiquitous presence in bioactive compounds. Copper-catalyzed multicomponent synthesis of heterocycles has developed as the most convenient and facile synthetic route towards complex heterocyclic motifs. In this review, we discuss the advancements in the field of copper-catalyzed multicomponent reactions for the preparation of heterocycles since 2018. Heterocycles are abundant in several pharmaceutical and naturally occurring compounds. Copper-catalyzed multicomponent reactions are a convenient method for easy access to heterocycles. In this review, we focus on the advancement in this field for the past two years.![]()
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Affiliation(s)
- Jaleel Fairoosa
- School of Chemical Sciences
- Mahatma Gandhi University
- Kottayam
- India
| | - Mohan Neetha
- School of Chemical Sciences
- Mahatma Gandhi University
- Kottayam
- India
| | - Gopinathan Anilkumar
- School of Chemical Sciences
- Mahatma Gandhi University
- Kottayam
- India
- Advanced Molecular Materials Research Centre (AMMRC)
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3
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Arcadi A, Fabrizi G, Fochetti A, Ghirga F, Goggiamani A, Iazzetti A, Marrone F, Mazzoccanti G, Serraiocco A. Palladium-catalyzed Tsuji-Trost-type reaction of benzofuran-2-ylmethyl acetates with nucleophiles. RSC Adv 2020; 11:909-917. [PMID: 35423668 PMCID: PMC8693365 DOI: 10.1039/d0ra09601f] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2020] [Accepted: 12/15/2020] [Indexed: 12/19/2022] Open
Abstract
The palladium-catalyzed benzylic-like nucleophilic substitution of benzofuran-2-ylmethyl acetate with N, S, O and C soft nucleophiles has been investigated. The success of the reaction is dramatically influenced by the choice of catalytic system: with nitrogen based nucleophiles the reaction works well with Pd2(dba)3/dppf, while with sulfur, oxygen and carbo-nucleophiles [Pd(η3-C3H5)Cl]2/XPhos is more efficient. The regiochemical outcome shows that the nucleophilic substitution occurs only on the benzylic position of the η3-(benzofuryl)methyl complex. The high to excellent yields and the simplicity of the experimental procedure make this protocol a versatile synthetic tool for the preparation of 2-substituted benzo[b]furans.
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Affiliation(s)
- Antonio Arcadi
- Dipartimento di Scienze Fisiche e Chimiche, Università degli Studi di L'Aquila Via Vetoio 67100 Coppito AQ Italy
| | - Giancarlo Fabrizi
- Dipartimento di Chimica e Tecnologie del Farmaco, Sapienza, Università di Roma P.le A. Moro 5 00185 Rome Italy
| | - Andrea Fochetti
- Dipartimento di Chimica e Tecnologie del Farmaco, Sapienza, Università di Roma P.le A. Moro 5 00185 Rome Italy
| | - Francesca Ghirga
- Center for Life Nano Science@Sapienza, Istituto Italiano di Tecnologia Viale Regina Elena 291 00161 Rome Italy
| | - Antonella Goggiamani
- Dipartimento di Chimica e Tecnologie del Farmaco, Sapienza, Università di Roma P.le A. Moro 5 00185 Rome Italy
| | - Antonia Iazzetti
- Dipartimento di Chimica e Tecnologie del Farmaco, Sapienza, Università di Roma P.le A. Moro 5 00185 Rome Italy
| | - Federico Marrone
- Dipartimento di Chimica e Tecnologie del Farmaco, Sapienza, Università di Roma P.le A. Moro 5 00185 Rome Italy
| | - Giulia Mazzoccanti
- Dipartimento di Chimica e Tecnologie del Farmaco, Sapienza, Università di Roma P.le A. Moro 5 00185 Rome Italy
| | - Andrea Serraiocco
- Dipartimento di Chimica e Tecnologie del Farmaco, Sapienza, Università di Roma P.le A. Moro 5 00185 Rome Italy
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4
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Farooq S, Alharthi FA, Alsalme A, Hussain A, Dar BA, Hamid A, Koul S. Dihydropyrimidinones: efficient one-pot green synthesis using Montmorillonite-KSF and evaluation of their cytotoxic activity. RSC Adv 2020; 10:42221-42234. [PMID: 35516739 PMCID: PMC9057999 DOI: 10.1039/d0ra09072g] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2020] [Accepted: 11/13/2020] [Indexed: 01/31/2023] Open
Abstract
A simple, efficient, cost-effective, recyclable and green approach has been developed for the synthesis of new dihydropyrimidinone analogs via the Biginelli reaction. The methodology involves a multicomponent reaction catalyzed by “HPA-Montmorillonite-KSF” as a reusable and heterogeneous catalyst. This method gives an efficient and much improved modification of the original Biginelli reaction, in terms of yield and short reaction times under solvent free conditions. All the derivatives were subjected to cytotoxicity screening against a panel of four different human cancer cell lines viz. colon (Colo-205), prostate (PC-3), leukemia (THP-1) and lung (A549) to check their effect on percentage growth. MTT [3-(4,5-dimethylthiazol-yl)-diphenyl tetrazoliumbromide] cytotoxicity assay was employed to check IC50 values. Of the synthesized analogs, 16a showed the best activity with IC50 of 7.1 ± 0.8, 13.1 ± 1.4, 13.8 ± 0.9 and 14.7 ± 1.1 μM against lung (A549), leukemia (THP-1), prostate (PC-3) and colon (Colo-205) cancer lines, respectively. The 16a analog was further checked for its effect on cancer cell properties through clonogenic (colony formation) and scratch motility (wound healing) assays and thereby was found that it reduced both the colony formation and migratory properties of the lung cancer cell line (A549). Further, molecular docking studies were performed with 16a to show its binding mode. The general method for the preparation of DHPM analogs; cytotoxic activity and binding mode of the most active derivative against PI3Kγ and CDK2 targets.![]()
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Affiliation(s)
- Saleem Farooq
- Department of Higher Education, Department of Chemistry, Government Degree College for Boys Baramulla 193101 J&K India +91-1952-234214 +91-1952-234214.,Bioorganic Chemistry Division, CSIR-Indian Institute of Integrative Medicine Canal Road Jammu 180001 J&K India
| | - Fahad A Alharthi
- Department of Chemistry, College of Science, King Saud University P.O. Box 2455 Riyadh 11451 Saudi Arabia
| | - Ali Alsalme
- Department of Chemistry, College of Science, King Saud University P.O. Box 2455 Riyadh 11451 Saudi Arabia
| | - Aashiq Hussain
- Cancer Pharmacology Division, CSIR-Indian Institute of Integrative Medicine Canal Road Jammu 180001 J&K India
| | - Bashir A Dar
- Department of Higher Education, Department of Chemistry, Govt. Degree College Sopore Baramulla 193201 J&K India
| | - Abid Hamid
- Cancer Pharmacology Division, CSIR-Indian Institute of Integrative Medicine Canal Road Jammu 180001 J&K India.,Department of Biotechnology, Central University of Kashmir Ganderbal 191201 J&K India
| | - S Koul
- Bioorganic Chemistry Division, CSIR-Indian Institute of Integrative Medicine Canal Road Jammu 180001 J&K India
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5
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Base‐Promoted Intramolecular Cyclization and Hydrolysis of 2‐(2‐Formylaryloxy)acetonitriles: An Efficient Domino to Approach Benzofuran‐2‐carboxamides. ChemistrySelect 2020. [DOI: 10.1002/slct.202000650] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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6
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Chuc LTN, Nguyen TAH, Hou DR. Acid-base-sensitive allylic oxidation of 2-allylbenzoic acids to form phthalides. Org Biomol Chem 2020; 18:2758-2768. [PMID: 32227018 DOI: 10.1039/d0ob00303d] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Allylic oxidation of 2-allylbenzoic acids to phthalides, instead of Wacker-type isocoumarins, was achieved with 1,2-bis(phenylsulfinyl)ethane palladium(ii) acetate (White catalyst) and oxygen in DMSO. The selective formation of 3-ethylidenephthalides or 3-vinylphthalides was controlled by the addition of acids or bases, and the reaction conditions were applied to substituted 2-allylbenzoic acids to generate corresponding phthalides selectively. Mechanistic studies, including the corresponding reaction of (E)-2-(1-propenyl)benzoic acid to 3-methylisocoumarin, isomerization reaction of 3-vinylphthalide to 3-ethylidenephthalide, and the kinetic isotope effect using 2-(1,1-d2-allyl)benzoic acid, revealed the competition between Wacker-type oxidation and allylic C-H cleavage, which is the key step to generating phthalides. A natural product, 3-ethyl-6-hydroxyphthalide, was prepared by this method.
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Affiliation(s)
- Le Thi Ngoc Chuc
- Department of Chemistry, National Central University, No. 300 Jhong-Da Road, Jhong-li, Taoyuan, Taiwan 32001.
| | - Thi Anh Hong Nguyen
- Department of Chemistry, National Central University, No. 300 Jhong-Da Road, Jhong-li, Taoyuan, Taiwan 32001.
| | - Duen-Ren Hou
- Department of Chemistry, National Central University, No. 300 Jhong-Da Road, Jhong-li, Taoyuan, Taiwan 32001.
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7
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Hassan Goodarzi, Asghari A, Nematollahi D, Rajabi M. Catalyst-Free, Facile and Green Synthesis of New Symmetric and Asymmetric Benzofurans through Hydroquinones Oxidation in the Presence of Meldrum’s Acid. RUSS J ELECTROCHEM+ 2020. [DOI: 10.1134/s1023193519130019] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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8
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Panday A, Ali D, Choudhury LH. Cs 2CO 3-Mediated Rapid Room-Temperature Synthesis of 3-Amino-2-aroyl Benzofurans and Their Copper-Catalyzed N-Arylation Reactions. ACS OMEGA 2020; 5:3646-3660. [PMID: 32118180 PMCID: PMC7045548 DOI: 10.1021/acsomega.9b04169] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/06/2019] [Accepted: 01/21/2020] [Indexed: 05/04/2023]
Abstract
Cs2CO3 in dimethylformamide (DMF) is a perfect combination for the rapid room-temperature synthesis of 3-amino-2-aroyl benzofuran derivatives from the reaction of 2-hydroxybenzonitriles and 2-bromoacetophenones in good to excellent yields. Using this one-pot C-C and C-O bond-forming strategy, we prepared a series of 3-amino-2-aroyl benzofuran derivatives within a very short time (10-20 min). This method was also found suitable for gram-scale synthesis. Benzofurans (3) obtained by this Cs2CO3-mediated methodology were then further explored for the development of a tunable base- and ligand-free copper-catalyzed N-arylation methodology using arylboronic acids for the easy access of either mono- or bi-N-aryl derivatives of aminobenzofurans at ambient temperature. The reaction of 3 with malononitrile in DMF medium under microwave heating conditions provided highly fluorescent conjugated alkenes and novel pyridine-fused benzofurans.
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9
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Wei WM, Dong FQ, Zheng RH, Yang X, Fang WJ, Qin YD. Theoretical study of the mechanism of Pd(II)-catalyzed nucleophilic addition initiated by aminopalladation. COMPUT THEOR CHEM 2019. [DOI: 10.1016/j.comptc.2019.112638] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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10
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Faiz S, Zahoor AF, Ajmal M, Kamal S, Ahmad S, Abdelgawad AM, Elnaggar ME. Design, Synthesis, Antimicrobial Evaluation, and Laccase Catalysis Effect of Novel Benzofuran–Oxadiazole and Benzofuran–Triazole Hybrids. J Heterocycl Chem 2019. [DOI: 10.1002/jhet.3674] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- Sadia Faiz
- Department of ChemistryGovernment College University, Faisalabad Faisalabad 38000 Pakistan
| | - Ameer Fawad Zahoor
- Department of ChemistryGovernment College University, Faisalabad Faisalabad 38000 Pakistan
| | - Muhammad Ajmal
- Department of Chemistry and Chemical EngineeringXiamen University Xiamen 361005 China
| | - Shagufta Kamal
- Department of BiochemistryGovernment College University, Faisalabad Faisalabad 38000 Pakistan
| | - Sajjad Ahmad
- Department of ChemistryUniversity of Engineering and Technology, Lahore, Faisalabad Campus Faisalabad 38000 Pakistan
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11
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Umareddy P, Arava VR. Facile synthesis of 3-aryl benzofurans, 3-aryl benzothiophenes, 2-aryl indoles and their dimers. SYNTHETIC COMMUN 2019. [DOI: 10.1080/00397911.2019.1611856] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Pailla Umareddy
- R&D Centre, Suven Life Sciences Ltd, Jeedimetla, Hyderabad, India
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12
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Khan T, Yaragorla S. Iodocyclization of Propargyl Alcohols: Highly Facile Approach to Hetero/Carbocyclic Iodides. European J Org Chem 2019. [DOI: 10.1002/ejoc.201900474] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Affiliation(s)
- Tabassum Khan
- School of Chemistry; University of Hyderabad; P.O.Central Universit; 500046 Gachibowli Hyderabad India
| | - Srinivasarao Yaragorla
- School of Chemistry; University of Hyderabad; P.O.Central Universit; 500046 Gachibowli Hyderabad India
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13
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Umareddy P, Arava VR. Syntheses of 2-Aroyl 3-Aryl Benzofuran and Benzothiophenes. J Heterocycl Chem 2018. [DOI: 10.1002/jhet.3287] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Pailla Umareddy
- R&D Centre Suven Life Sciences Ltd; Plot No #18, Phase-III, Jeedimetla Hyderabad 500055 India
| | - Veera Reddy Arava
- R&D Centre Suven Life Sciences Ltd; Plot No #18, Phase-III, Jeedimetla Hyderabad 500055 India
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14
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Kita Y, Yata T, Nishimoto Y, Chiba K, Yasuda M. Selective oxymetalation of terminal alkynes via 6- endo cyclization: mechanistic investigation and application to the efficient synthesis of 4-substituted isocoumarins. Chem Sci 2018; 9:6041-6052. [PMID: 30079217 PMCID: PMC6053900 DOI: 10.1039/c8sc01537f] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2018] [Accepted: 06/13/2018] [Indexed: 01/05/2023] Open
Abstract
The cyclization of heteroatom-containing alkynes with π acidic metal salts is an attractive method to prepare heterocycles because the starting materials are readily available and the organometallic compounds are useful synthetic intermediates. A new organometallic species in the heterocyclization provides an opportunity to synthesize heterocycles that are difficult to obtain. Herein, we describe a novel cyclic oxymetalation of 2-alkynylbenzoate with indium or gallium salts that proceeds with an unusual regioselectivity to give isocoumarins bearing a carbon-metal bond at the 4-position. This new type of metalated isocoumarin provided 3-unsubstituted isocoumarins that have seldom been investigated despite their important pharmacological properties. Indium and gallium salts showed high performance in the selective 6-endo cyclization of terminal alkynes while boron or other metals such as Al, Au, and Ag caused 5-exo cyclization or decomposition of terminal alkynes, respectively. The metalated isocoumarin and its reaction intermediate were unambiguously identified by X-ray crystallographic analysis. The theoretical calculation of potential energy profiles showed that oxyindation could proceed via 6-endo cyclization under thermodynamic control while previously reported oxyboration would give a 5-membered ring under kinetic control. The investigation of electrostatic potential maps suggested that the differences in the atomic characters of indium, boron and their ligands would contribute to such a regioselective switch. The metalated isocoumarins were applied to organic synthetic reactions. The halogenation of metalated isocoumarins proceeded to afford 4-halogenated isocoumarins bearing various functional groups. The palladium-catalyzed cross coupling of organometallic species with organic halides gave various 4-substituted isocoumarins. A formal total synthesis of oosponol, which exhibits strong antifungal activity, was accomplished.
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Affiliation(s)
- Yuji Kita
- Department of Applied Chemistry , Graduate School of Engineering , Osaka University , 2-1 Yamadaoka, Suita , Osaka 565-0871 , Japan .
| | - Tetsuji Yata
- Department of Applied Chemistry , Graduate School of Engineering , Osaka University , 2-1 Yamadaoka, Suita , Osaka 565-0871 , Japan .
| | - Yoshihiro Nishimoto
- Frontier Research Base for Global Young Researchers Center for Open Innovation Research and Education (COiRE) , Graduate School of Engineering , Osaka University , 2-1 Yamadaoka, Suita , Osaka 565-0871 , Japan .
| | - Kouji Chiba
- Material Science Division , MOLSIS Inc. , 1-28-38 Shinkawa, Chuo-ku , Tokyo 104-0033 , Japan
| | - Makoto Yasuda
- Department of Applied Chemistry , Graduate School of Engineering , Osaka University , 2-1 Yamadaoka, Suita , Osaka 565-0871 , Japan .
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15
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Cui HL, Deng HQ, Lei JJ. Metal-free one-pot synthesis of benzofurans with ynones and quinones through aza-Michael/Michael/annulation sequence. Tetrahedron 2017. [DOI: 10.1016/j.tet.2017.11.014] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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16
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Lokesh K, Kesavan V. Efficient Synthesis of Highly Functionalized Spirocarbocyclic Oxindoles through Hauser Annulation. European J Org Chem 2017. [DOI: 10.1002/ejoc.201701023] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Kanduru Lokesh
- Chemical Biology Laboratory; Department of Biotechnology; Bhupat and Jyoti Mehta School of Biosciences; Indian Institute of Technology Madras; 600036 Chennai India
| | - Venkitasamy Kesavan
- Chemical Biology Laboratory; Department of Biotechnology; Bhupat and Jyoti Mehta School of Biosciences; Indian Institute of Technology Madras; 600036 Chennai India
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17
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Vo DD, Elofsson M. Synthesis of 4-Formyl-2-arylbenzofuran Derivatives by PdCl(C3H5)dppb-Catalyzed Tandem Sonogashira Coupling-Cyclization under Microwave Irradiation - Application to the Synthesis of Viniferifuran Analogues. ChemistrySelect 2017. [DOI: 10.1002/slct.201701490] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Duy D. Vo
- Department of Chemistry; Umeå University; SE90187 Umeå Sweden
| | - Mikael Elofsson
- Department of Chemistry; Umeå University; SE90187 Umeå Sweden
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18
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Wu W, Yi S, Huang W, Luo D, Jiang H. Ag-Catalyzed Oxidative Cyclization Reaction of 1,6-Enynes and Sodium Sulfinate: Access to Sulfonylated Benzofurans. Org Lett 2017; 19:2825-2828. [DOI: 10.1021/acs.orglett.7b00980] [Citation(s) in RCA: 92] [Impact Index Per Article: 13.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Wanqing Wu
- Key
Laboratory of Functional Molecular Engineering of Guangdong Province,
School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, China
- State
Key Laboratory of Luminescent Materials and Devices, South China University of Technology, Guangzhou 510640, China
| | - Songjian Yi
- Key
Laboratory of Functional Molecular Engineering of Guangdong Province,
School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, China
| | - Wei Huang
- Key
Laboratory of Functional Molecular Engineering of Guangdong Province,
School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, China
| | - Di Luo
- Key
Laboratory of Functional Molecular Engineering of Guangdong Province,
School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, China
| | - Huanfeng Jiang
- Key
Laboratory of Functional Molecular Engineering of Guangdong Province,
School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, China
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19
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Sunitha V, Kishore Kumar A, Shankar B, Anil Kumar A, Krishna TM, Lincoln CA, Pochampalli J. Synthesis and antimicrobial activity of some novel benzofuran based 1,2,3-triazoles. RUSS J GEN CHEM+ 2017. [DOI: 10.1134/s1070363217020281] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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20
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Canovese L, Scattolin T, Visentin F, Santo C. Reactions of palladium(0) olefin complexes stabilized by some different hetero- and homo-ditopic spectator ligands with propargyl halides. J Organomet Chem 2017. [DOI: 10.1016/j.jorganchem.2017.02.003] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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21
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Beerappa M, Shivashankar K. One-pot Three-component Synthesis of Furan-based Heterocycles from Benzyl Halides. J Heterocycl Chem 2017. [DOI: 10.1002/jhet.2806] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Mallappa Beerappa
- PG Department of Chemistry, Central College Campus; Bangalore University; Bangalore 560 001 Karnataka India
| | - Kalegowda Shivashankar
- PG Department of Chemistry, Central College Campus; Bangalore University; Bangalore 560 001 Karnataka India
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22
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Synthesis and evaluation of anti-inflammatory, antioxidant and antimicrobial activities of densely functionalized novel benzo [ d ] imidazolyl tetrahydropyridine carboxylates. ARAB J CHEM 2017. [DOI: 10.1016/j.arabjc.2013.02.011] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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23
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Sreenivasulu C, Gopi Krishna Reddy A, Satyanarayana G. Oxidative annulations triggered by a simple Lewis acid: facile synthesis of benzofurans. Org Chem Front 2017. [DOI: 10.1039/c6qo00531d] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The first example of Lewis acid promoted efficient one-pot synthesis of benzofurans is presented.
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Affiliation(s)
| | | | - G. Satyanarayana
- Department of Chemistry
- Indian Institute of Technology
- Hyderabad
- India
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24
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Li F, Wang JJ, Wang GW. Palladium-catalyzed synthesis of [60]fullerene-fused benzofurans via heteroannulation of phenols. Chem Commun (Camb) 2017; 53:1852-1855. [DOI: 10.1039/c6cc09080j] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Palladium-catalyzed heteroannulation of [60]fullerene with phenols has been developed for the synthesis of various [60]fullerene-fused benzofurans.
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Affiliation(s)
- Fei Li
- CAS Key Laboratory of Soft Matter Chemistry
- Collaborative Innovation Center of Chemistry for Energy Materials (iChEM)
- Hefei National Laboratory for Physical Sciences at Microscale
- and Department of Chemistry
- University of Science and Technology of China
| | - Jun-Jie Wang
- CAS Key Laboratory of Soft Matter Chemistry
- Collaborative Innovation Center of Chemistry for Energy Materials (iChEM)
- Hefei National Laboratory for Physical Sciences at Microscale
- and Department of Chemistry
- University of Science and Technology of China
| | - Guan-Wu Wang
- CAS Key Laboratory of Soft Matter Chemistry
- Collaborative Innovation Center of Chemistry for Energy Materials (iChEM)
- Hefei National Laboratory for Physical Sciences at Microscale
- and Department of Chemistry
- University of Science and Technology of China
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25
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Rajanarendar E, Thirupathaiah K, Ramakrishna S, Nagaraju D. A Convenient and Facile Hantzsch Synthesis of Aryl Imidazo[1,2- b]Isoxazolyl- N-aryl Thiazol Amines. J Heterocycl Chem 2016. [DOI: 10.1002/jhet.2518] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- E. Rajanarendar
- Department of Chemistry; Kakatiya University; Warangal Telangana State 506009 India
| | - K. Thirupathaiah
- Department of Chemistry; Kakatiya University; Warangal Telangana State 506009 India
| | - S. Ramakrishna
- Department of Chemistry; Kakatiya University; Warangal Telangana State 506009 India
| | - D. Nagaraju
- Department of Chemistry; Kakatiya University; Warangal Telangana State 506009 India
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26
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Liu L, Ji X, Dong J, Zhou Y, Yin SF. Metal-Free Oxidative Annulation of 2-Naphthols with Terminal Alkynes Affording 2-Arylnaphtho[2,1-b]furans. Org Lett 2016; 18:3138-41. [DOI: 10.1021/acs.orglett.6b01352] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Long Liu
- State Key
Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry
and Chemical Engineering, Hunan University, Changsha 410082, China
| | - Xuyu Ji
- State Key
Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry
and Chemical Engineering, Hunan University, Changsha 410082, China
| | - Jianyu Dong
- State Key
Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry
and Chemical Engineering, Hunan University, Changsha 410082, China
| | - Yongbo Zhou
- State Key
Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry
and Chemical Engineering, Hunan University, Changsha 410082, China
| | - Shuang-Feng Yin
- State Key
Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry
and Chemical Engineering, Hunan University, Changsha 410082, China
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27
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Cheng X, Peng Y, Wu J, Deng GJ. Palladium-catalyzed paraformaldehyde insertion: a three-component synthesis of benzofurans. Org Biomol Chem 2016; 14:2819-23. [DOI: 10.1039/c6ob00198j] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
2-Aroylbenzofurans were prepared from 2-bromophenols, phenacyl bromides and paraformaldehyde under palladium catalysis conditions.
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Affiliation(s)
- Xiufang Cheng
- Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education
- College of Chemistry
- Xiangtan University
- Xiangtan
- China
| | - Yi Peng
- Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education
- College of Chemistry
- Xiangtan University
- Xiangtan
- China
| | - Jun Wu
- Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education
- College of Chemistry
- Xiangtan University
- Xiangtan
- China
| | - Guo-Jun Deng
- Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education
- College of Chemistry
- Xiangtan University
- Xiangtan
- China
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28
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Oxidative addition of organic halides on palladium(0) complexes stabilized by dimethylfumarate and quinoline-based N–P or N–S spectator ligands. Polyhedron 2015. [DOI: 10.1016/j.poly.2015.07.049] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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29
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Hu M, Liu B, Ouyang XH, Song RJ, Li JH. Nitrative Cyclization of 1-Ethynyl-2-(vinyloxy)benzenes to Access 1-[2-(Nitromethyl)benzofuran-3-yl] Ketones Through Dioxygen Activation. Adv Synth Catal 2015. [DOI: 10.1002/adsc.201500336] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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30
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Canovese L, Visentin F, Biz C, Scattolin T, Santo C, Bertolasi V. Oxidative addition of allyl and propargyl halides on palladium(0) complexes bearing bidentate ligands with quinolinic structure. J Organomet Chem 2015. [DOI: 10.1016/j.jorganchem.2015.01.023] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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31
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Xu W, Li Q, Cao C, Zhang F, Zheng H. Intramolecular oxidative coupling: I2/TBHP/NaN3-mediated synthesis of benzofuran derivatives. Org Biomol Chem 2015; 13:6158-61. [DOI: 10.1039/c5ob00577a] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A novel intramolecular oxidative coupling reaction has been established to prepare benzofuran derivatives via direct C(sp2)–H functionalization for the formation of C–O bonds. This transformation is mediated by I2/TBHP/NaN3 under metal-free conditions and a catalytic amount of NaN3 plays a crucial role in the reaction.
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Affiliation(s)
- Wengang Xu
- School of Chemistry
- Chemical Engineering and Life Sciences
- Wuhan University of Technology
- Wuhan
- China
| | - Qingcui Li
- School of Chemistry
- Chemical Engineering and Life Sciences
- Wuhan University of Technology
- Wuhan
- China
| | - Chuanpeng Cao
- School of Chemistry
- Chemical Engineering and Life Sciences
- Wuhan University of Technology
- Wuhan
- China
| | - Fanglin Zhang
- School of Chemistry
- Chemical Engineering and Life Sciences
- Wuhan University of Technology
- Wuhan
- China
| | - Hua Zheng
- School of Chemistry
- Chemical Engineering and Life Sciences
- Wuhan University of Technology
- Wuhan
- China
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32
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Moon SW, Ham J, Chang YT, Lee JW. Solid-phase Synthesis of Combinatorial 2,4-Disubstituted-1,3,5-Triazine via Amine Nucleophilic Reaction. B KOREAN CHEM SOC 2015. [DOI: 10.1002/bkcs.10091] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Sung Won Moon
- Natural Product Research Center; KIST Gangneung Institute; Gangneung 210-340 Republic of Korea
- Department of Chemistry; Gangneung-Wonju National University; Gangneung 210-340 Republic of Korea
| | - Jungyeob Ham
- Natural Product Research Center; KIST Gangneung Institute; Gangneung 210-340 Republic of Korea
| | - Young-Tae Chang
- Department of Chemistry & MedChem Program of Life Science Institute; National University of Singapore; Singapore 117543 Singapore
| | - Jae Wook Lee
- Natural Product Research Center; KIST Gangneung Institute; Gangneung 210-340 Republic of Korea
- Department of Biological Chemistry; University of Science and Technology; Daejon 305-350 Republic of Korea
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33
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Garcia AM, Jung N, Gil C, Nieger M, Bräse S. Solid phase synthesis of functionalized indazoles using triazenes – scope and limitations. RSC Adv 2015. [DOI: 10.1039/c5ra09705c] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
In this study, we present a modular synthesis of highly substituted indazoles via a strategy on solid supports.
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Affiliation(s)
- Ana Maria Garcia
- Institute of Toxicology and Genetics
- Karlsruhe Institute of Technology
- 76344 Eggenstein-Leopoldshafen
- Germany
- Centro de Investigaciones Biológicas (CSIC)
| | - Nicole Jung
- Institute of Toxicology and Genetics
- Karlsruhe Institute of Technology
- 76344 Eggenstein-Leopoldshafen
- Germany
- Institute of Organic Chemistry
| | - Carmen Gil
- Centro de Investigaciones Biológicas (CSIC)
- 28040 Madrid
- Spain
| | - Martin Nieger
- Laboratory of Inorganic Chemistry
- Department of Chemistry
- University of Helsinki
- 00014 Helsinki
- Finland
| | - Stefan Bräse
- Institute of Toxicology and Genetics
- Karlsruhe Institute of Technology
- 76344 Eggenstein-Leopoldshafen
- Germany
- Institute of Organic Chemistry
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34
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Metal-Free Radical5-exo-dig Cyclizations of Phenol-Linked 1,6-Enynes for the Synthesis of Carbonylated Benzofurans. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201408978] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
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35
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Hu M, Song RJ, Li JH. Metal-Free Radical5-exo-dig Cyclizations of Phenol-Linked 1,6-Enynes for the Synthesis of Carbonylated Benzofurans. Angew Chem Int Ed Engl 2014; 54:608-12. [DOI: 10.1002/anie.201408978] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2014] [Revised: 10/19/2014] [Indexed: 01/17/2023]
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36
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Ghosh R, Stridfeldt E, Olofsson B. Metal-Free One-Pot Synthesis of Benzofurans. Chemistry 2014; 20:8888-92. [DOI: 10.1002/chem.201403523] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2014] [Indexed: 12/12/2022]
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37
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He A, Sheng S, Huang Z, Liu L, Cai M. Solid-Phase Organic Synthesis of 1,4-N-Vinyl- and 1,4-N-Allyl-Triazoles with the Sulfonate Linker. J Heterocycl Chem 2014. [DOI: 10.1002/jhet.1857] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Aiying He
- Institutes of Chemistry and Chemical Engineering; Jiangxi Normal University; Jiangxi Nanchang 330022 People's Republic of China
| | - Shouri Sheng
- Institutes of Chemistry and Chemical Engineering; Jiangxi Normal University; Jiangxi Nanchang 330022 People's Republic of China
| | - Zhenzhong Huang
- Institutes of Chemistry and Chemical Engineering; Jiangxi Normal University; Jiangxi Nanchang 330022 People's Republic of China
| | - Li Liu
- Institutes of Chemistry and Chemical Engineering; Jiangxi Normal University; Jiangxi Nanchang 330022 People's Republic of China
| | - Mingzhong Cai
- Institutes of Chemistry and Chemical Engineering; Jiangxi Normal University; Jiangxi Nanchang 330022 People's Republic of China
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38
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Wang Y, Zhu B, Xu Q, Zhu Q, Yu L. Synthesis of heterocycle-tethered acylbenzofurans and benzodifurans from odorless and recyclable organoseleno polystyrene resin. RSC Adv 2014. [DOI: 10.1039/c4ra08441a] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Recyclable organoseleno resin-supported solid-phase synthesis (SPS) provided a quick access to heterocycle-tethered acylbenzofurans and benzodifurans in satisfactory overall yields and purities after multiple step reactions.
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Affiliation(s)
- Yuguang Wang
- College of Biological and Environmental Engineering
- Zhejiang University of Technology
- Hangzhou, P. R. China
| | - Bingchun Zhu
- College of Biological and Environmental Engineering
- Zhejiang University of Technology
- Hangzhou, P. R. China
- Zhejiang Research Institute of Chemical Industry
- Hangzhou, P. R. China
| | - Qing Xu
- School of Chemistry and Chemical Engineering
- Yangzhou University
- Yangzhou, China
| | - Qing Zhu
- College of Biological and Environmental Engineering
- Zhejiang University of Technology
- Hangzhou, P. R. China
| | - Lei Yu
- School of Chemistry and Chemical Engineering
- Yangzhou University
- Yangzhou, China
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39
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Li HS, Liu G. Copper/Silver-Mediated Cascade Reactions for the Construction of 2-Sulfonylbenzo[b]furans from trans-2-Hydroxycinnamic Acids and Sodium Sulfinates. J Org Chem 2013; 79:509-16. [DOI: 10.1021/jo4024478] [Citation(s) in RCA: 61] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Hong-Shuang Li
- Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, 2 Nanwei Road, Xicheng District, Beijing 100050, P. R. China
| | - Gang Liu
- Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, 2 Nanwei Road, Xicheng District, Beijing 100050, P. R. China
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40
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Wang QY, Sheng WS, Sheng SR, Li Y, Cai MZ. Click Chemistry on Polymer Support: Synthesis of 1-Vinyl- and 1-Allyl-1,2,3-triazoles via Selenium Linker. SYNTHETIC COMMUN 2013. [DOI: 10.1080/00397911.2013.789112] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- Qiu-Ying Wang
- a Key Laboratory of Functional Small Organic Molecule, Ministry of Education , Jiangxi Normal University , Nanchang , China
| | - Wu-Sheng Sheng
- a Key Laboratory of Functional Small Organic Molecule, Ministry of Education , Jiangxi Normal University , Nanchang , China
| | - Shou-Ri Sheng
- a Key Laboratory of Functional Small Organic Molecule, Ministry of Education , Jiangxi Normal University , Nanchang , China
| | - Yan Li
- a Key Laboratory of Functional Small Organic Molecule, Ministry of Education , Jiangxi Normal University , Nanchang , China
| | - Ming-Zhong Cai
- a Key Laboratory of Functional Small Organic Molecule, Ministry of Education , Jiangxi Normal University , Nanchang , China
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41
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Sharma U, Naveen T, Maji A, Manna S, Maiti D. Palladium-Catalyzed Synthesis of Benzofurans and Coumarins from Phenols and Olefins. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201305326] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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42
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Sharma U, Naveen T, Maji A, Manna S, Maiti D. Palladium-catalyzed synthesis of benzofurans and coumarins from phenols and olefins. Angew Chem Int Ed Engl 2013; 52:12669-73. [PMID: 24127393 DOI: 10.1002/anie.201305326] [Citation(s) in RCA: 180] [Impact Index Per Article: 16.4] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2013] [Revised: 08/05/2013] [Indexed: 11/11/2022]
Affiliation(s)
- Upendra Sharma
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai-400 076 (India)
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43
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Paterna R, André V, Duarte MT, Veiros LF, Candeias NR, Gois PMP. Ring-Expansion Reaction of Isatins with Ethyl Diazoacetate Catalyzed by Dirhodium(II)/DBU Metal-Organic System: En Route to Viridicatin Alkaloids. European J Org Chem 2013. [DOI: 10.1002/ejoc.201300796] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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44
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Wu GJ, Sheng SR, Li D, Xu LF, Huang ZZ. Polymer-Supported Vinyl Sulfone as an Efficient Reagent for the Synthesis of 3-Monosubstituted Isoxazoles. SYNTHETIC COMMUN 2013. [DOI: 10.1080/00397911.2012.762718] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- Guo-Jian Wu
- a College of Chemistry and Chemical Engineering, Jiangxi Normal University , Nanchang , P.R. , China
| | - Shou-Ri Sheng
- a College of Chemistry and Chemical Engineering, Jiangxi Normal University , Nanchang , P.R. , China
| | - Dan Li
- a College of Chemistry and Chemical Engineering, Jiangxi Normal University , Nanchang , P.R. , China
| | - Li-Fan Xu
- a College of Chemistry and Chemical Engineering, Jiangxi Normal University , Nanchang , P.R. , China
| | - Zhen-Zhong Huang
- a College of Chemistry and Chemical Engineering, Jiangxi Normal University , Nanchang , P.R. , China
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45
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Nammalwar B, Bunce RA. Friedel–Crafts cyclization of tertiary alcohols using bismuth(III) triflate. Tetrahedron Lett 2013. [DOI: 10.1016/j.tetlet.2013.06.026] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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46
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Ríos N, Chavarría C, Gil C, Porcal W. Microwave-Assisted Solid-Phase Synthesis of a 1,2-Disubstituted Benzimidazole Library by Using a Phosphonium Linker. J Heterocycl Chem 2013. [DOI: 10.1002/jhet.1619] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Natalia Ríos
- Grupo de Química Medicinal, Laboratorio de Química Orgánica, Facultad de Ciencias-Facultad de Química; Universidad de la República; Iguá 4225; Montevideo; 11400; Uruguay
| | - Cecilia Chavarría
- Grupo de Química Medicinal, Laboratorio de Química Orgánica, Facultad de Ciencias-Facultad de Química; Universidad de la República; Iguá 4225; Montevideo; 11400; Uruguay
| | - Carmen Gil
- Instituto de Química Médica (CSIC); Juan de la Cierva 3; Madrid; 28006; Spain
| | - Williams Porcal
- Grupo de Química Medicinal, Laboratorio de Química Orgánica, Facultad de Ciencias-Facultad de Química; Universidad de la República; Iguá 4225; Montevideo; 11400; Uruguay
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47
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Kuram MR, Bhanuchandra M, Sahoo AK. Direct Access to Benzo[b]furans through Palladium-Catalyzed Oxidative Annulation of Phenols and Unactivated Internal Alkynes. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201210217] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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48
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Kuram MR, Bhanuchandra M, Sahoo AK. Direct Access to Benzo[b]furans through Palladium-Catalyzed Oxidative Annulation of Phenols and Unactivated Internal Alkynes. Angew Chem Int Ed Engl 2013; 52:4607-12. [DOI: 10.1002/anie.201210217] [Citation(s) in RCA: 177] [Impact Index Per Article: 16.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2012] [Revised: 01/31/2013] [Indexed: 11/11/2022]
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49
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Arcadi A, Blesi F, Cacchi S, Fabrizi G, Goggiamani A, Marinelli F. Multisubstituted benzo[b]furans through a copper- and/or palladium-catalyzed assembly and functionalization process. Tetrahedron 2013. [DOI: 10.1016/j.tet.2012.12.058] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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50
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Kong Y, Jiang K, Cao J, Fu L, Yu L, Lai G, Cui Y, Hu Z, Wang G. Synthesis of 3-Alkyl- or 3-Allenyl-2-amidobenzofurans via Electrophilic Cyclization of o-Anisole-Substituted Ynamides with Carbocations. Org Lett 2013; 15:422-5. [DOI: 10.1021/ol303474a] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Affiliation(s)
- Yulong Kong
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education, Hangzhou Normal University, Wenyi Road 222, Hangzhou 310012, People’s Republic of China
| | - Kezhi Jiang
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education, Hangzhou Normal University, Wenyi Road 222, Hangzhou 310012, People’s Republic of China
| | - Jian Cao
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education, Hangzhou Normal University, Wenyi Road 222, Hangzhou 310012, People’s Republic of China
| | - Lingzi Fu
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education, Hangzhou Normal University, Wenyi Road 222, Hangzhou 310012, People’s Republic of China
| | - Lian Yu
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education, Hangzhou Normal University, Wenyi Road 222, Hangzhou 310012, People’s Republic of China
| | - Guoqiao Lai
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education, Hangzhou Normal University, Wenyi Road 222, Hangzhou 310012, People’s Republic of China
| | - Yuming Cui
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education, Hangzhou Normal University, Wenyi Road 222, Hangzhou 310012, People’s Republic of China
| | - Ziqiang Hu
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education, Hangzhou Normal University, Wenyi Road 222, Hangzhou 310012, People’s Republic of China
| | - Guanhai Wang
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education, Hangzhou Normal University, Wenyi Road 222, Hangzhou 310012, People’s Republic of China
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