1
|
Man N, Li Y, Jie J, Li H, Yang H, Zhao Y, Fu H. Synthesis of Chiral Propargylamines, Chiral 1,2-Dihydronaphtho[2,1-b]furans and Naphtho[2,1-b]furans with C-Alkynyl N,N'-di-(tert-butoxycarbonyl)-aminals and β-Naphthols. Chemistry 2021; 27:12884-12889. [PMID: 34133047 DOI: 10.1002/chem.202102040] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2021] [Indexed: 12/21/2022]
Abstract
Chiral phosphoric acid-catalyzed couplings of C-alkynyl N,N'-di-(tert-butoxycarbonyl)-aminals with β-naphthols led to chiral propargylamines in moderate to high yields with high to excellent enantioselectivity, in which the reactions underwent sequential chiral phosphoric acid-catalyzed in situ formation of N-(tert-butoxycarbonyl)-imines (N-Boc-imines) from the aminals, and 1,2-addition of β-naphthols to the N-Boc-imines. Chiral 1,2-dihydronaphtho[2,1-b]furans and naphtho[2,1-b]furans were prepared with satisfactory results when 10 mol% AgOAc and 20 mol% 2,6-lutidine or 1.2 equiv. of 1,8-diazabicyclo[5.4.0]undec-7-ene (DBU) were added to the resulting chiral propargylamines solution, respectively.
Collapse
Affiliation(s)
- Ningning Man
- Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology (Ministry of Education), Department of Chemistry, Tsinghua University, Beijing, 100084, China
| | - Yuming Li
- Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology (Ministry of Education), Department of Chemistry, Tsinghua University, Beijing, 100084, China
| | - Jiyang Jie
- Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology (Ministry of Education), Department of Chemistry, Tsinghua University, Beijing, 100084, China
| | - Hongyun Li
- Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology (Ministry of Education), Department of Chemistry, Tsinghua University, Beijing, 100084, China
| | - Haijun Yang
- Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology (Ministry of Education), Department of Chemistry, Tsinghua University, Beijing, 100084, China
| | - Yufen Zhao
- Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology (Ministry of Education), Department of Chemistry, Tsinghua University, Beijing, 100084, China
| | - Hua Fu
- Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology (Ministry of Education), Department of Chemistry, Tsinghua University, Beijing, 100084, China
| |
Collapse
|
2
|
Kumar S, Kumar A, Sharma D, Das P. Free Amine, Hydroxyl and Sulfhydryl Directed C-H Functionalization and Annulation: Application to Heterocycle Synthesis. CHEM REC 2021; 22:e202100171. [PMID: 34436813 DOI: 10.1002/tcr.202100171] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2021] [Revised: 08/09/2021] [Accepted: 08/11/2021] [Indexed: 12/16/2022]
Abstract
Transition metal-catalyzed direct C-H bond functionalization is recognized as an efficient strategy to assemble heterocyclic frameworks. For this purpose, directing groups (DGs) installation on an organic molecule has remained a widely exploited strategy for the years. The installation of directing groups, especially for the amine, alcohol and thiol containing reactants and their removal after the reaction need additional steps. In this regard, the use of free amine, hydroxyl and sulfhydryl as directing groups in native form is advantageous and in recent times, these transformations have stirred undisputable advancements for applications to heterocycle synthesis. In this review, the aromatic sp2 -C attached free amine, hydroxyl and sulfhydryl as native functionalities are shown to be useful for the construction of five to seven-membered N-, O- and S-heterocycles.
Collapse
Affiliation(s)
- Sandeep Kumar
- Department of Chemistry, DAV University, Jalandhar, 144012, Punjab, India.,Chemical Technology Division, CSIR- Institute of Himalayan Bioresource Technology, Palampur, 176061, H.P.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Akshay Kumar
- Department of Chemistry, DAV University, Jalandhar, 144012, Punjab, India
| | - Dharminder Sharma
- Chemical Technology Division, CSIR- Institute of Himalayan Bioresource Technology, Palampur, 176061, H.P.,PG Department of Chemistry, JCDAV College Dasuya, Punjab, 144205, India
| | - Pralay Das
- Chemical Technology Division, CSIR- Institute of Himalayan Bioresource Technology, Palampur, 176061, H.P.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| |
Collapse
|
3
|
Patel M, Desai B, Ramani A, Dholakiya BZ, Naveen T. Recent Developments in the Palladium‐Catalyzed/Norbornene‐Mediated Synthesis of Carbo‐ and Heterocycles. ChemistrySelect 2021. [DOI: 10.1002/slct.202102641] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Monak Patel
- Department of Chemistry Sardar Vallabhbhai National Institute of Technology Surat Gujarat 395 007 India
| | - Bhargav Desai
- Department of Chemistry Sardar Vallabhbhai National Institute of Technology Surat Gujarat 395 007 India
| | - Arti Ramani
- Department of Chemistry Sardar Vallabhbhai National Institute of Technology Surat Gujarat 395 007 India
| | - Bharatkumar Z. Dholakiya
- Department of Chemistry Sardar Vallabhbhai National Institute of Technology Surat Gujarat 395 007 India
| | - Togati Naveen
- Department of Chemistry Sardar Vallabhbhai National Institute of Technology Surat Gujarat 395 007 India
| |
Collapse
|
4
|
Hu L, Dietl MC, Han C, Rudolph M, Rominger F, Hashmi ASK. Au-Ag Bimetallic Catalysis: 3-Alkynyl Benzofurans from Phenols via Tandem C-H Alkynylation/Oxy-Alkynylation. Angew Chem Int Ed Engl 2021; 60:10637-10642. [PMID: 33617065 PMCID: PMC8252013 DOI: 10.1002/anie.202016595] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2020] [Revised: 01/27/2021] [Indexed: 01/17/2023]
Abstract
The development of new methodologies enabling a facile access to valuable heterocyclic frameworks still is an important subject of research. In this context, we describe a dual catalytic cycle merging C-H alkynylation of phenols and oxy-alkynylation of the newly introduced triple bond by using a unique redox property and the carbophilic π acidity of gold. Mechanistic studies support the participation of a bimetallic gold-silver species. The one-pot protocol offers a direct, simple, and regio-specific approach to 3-alkynyl benzofurans from readily available phenols. A broad range of substrates, including heterocycles, is transferred with excellent functional group tolerance. Thus, this methodology can be used for the late-stage incorporation of benzofurans.
Collapse
Affiliation(s)
- Long Hu
- Organisch-Chemisches InstitutRuprecht-Karls-Universität HeidelbergIm NeuenheimerFeld 27069120HeidelbergGermany
| | - Martin C. Dietl
- Organisch-Chemisches InstitutRuprecht-Karls-Universität HeidelbergIm NeuenheimerFeld 27069120HeidelbergGermany
| | - Chunyu Han
- Organisch-Chemisches InstitutRuprecht-Karls-Universität HeidelbergIm NeuenheimerFeld 27069120HeidelbergGermany
| | - Matthias Rudolph
- Organisch-Chemisches InstitutRuprecht-Karls-Universität HeidelbergIm NeuenheimerFeld 27069120HeidelbergGermany
| | - Frank Rominger
- Organisch-Chemisches InstitutRuprecht-Karls-Universität HeidelbergIm NeuenheimerFeld 27069120HeidelbergGermany
| | - A. Stephen K. Hashmi
- Organisch-Chemisches InstitutRuprecht-Karls-Universität HeidelbergIm NeuenheimerFeld 27069120HeidelbergGermany
- Chemistry DepartmentFaculty of ScienceKing Abdulaziz University (KAU)21589JeddahSaudi Arabia
| |
Collapse
|
5
|
Hu L, Dietl MC, Han C, Rudolph M, Rominger F, Hashmi ASK. Au‐Ag‐Bimetallkatalyse: 3‐Alkinylbenzofurane aus Phenolen durch Tandem‐C‐H‐Alkinylierung/Oxyalkinylierung. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202016595] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Long Hu
- Organisch-Chemisches Institut Ruprecht-Karls-Universität Heidelberg Im NeuenheimerFeld 270 69120 Heidelberg Deutschland
| | - Martin C. Dietl
- Organisch-Chemisches Institut Ruprecht-Karls-Universität Heidelberg Im NeuenheimerFeld 270 69120 Heidelberg Deutschland
| | - Chunyu Han
- Organisch-Chemisches Institut Ruprecht-Karls-Universität Heidelberg Im NeuenheimerFeld 270 69120 Heidelberg Deutschland
| | - Matthias Rudolph
- Organisch-Chemisches Institut Ruprecht-Karls-Universität Heidelberg Im NeuenheimerFeld 270 69120 Heidelberg Deutschland
| | - Frank Rominger
- Organisch-Chemisches Institut Ruprecht-Karls-Universität Heidelberg Im NeuenheimerFeld 270 69120 Heidelberg Deutschland
| | - A. Stephen K. Hashmi
- Organisch-Chemisches Institut Ruprecht-Karls-Universität Heidelberg Im NeuenheimerFeld 270 69120 Heidelberg Deutschland
- Chemistry Department Faculty of Science King Abdulaziz University (KAU) 21589 Jeddah Saudi Arabien
| |
Collapse
|
6
|
Lamaa D, Hauguel C, Lin HP, Messe E, Gandon V, Alami M, Hamze A. Sequential One-Pot Synthesis of 3-Arylbenzofurans from N-Tosylhydrazones and Bromophenol Derivatives. J Org Chem 2020; 85:13664-13673. [PMID: 33091298 DOI: 10.1021/acs.joc.0c01835] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
A divergent and efficient one-pot sequence allowing direct access to 3-arylbenzofuran derivatives has been developed. The process, involving N-tosylhydrazones and bromophenols, proceeds via a palladium-catalyzed Barluenga-Valdés cross-coupling, followed by an aerobic, copper-catalyzed, radical cyclization to form Csp2-Csp2 and O-Csp2 bonds. 3-Arylated benzofurans bearing various substituents were obtained with good to excellent yields (up to 90%). Mechanistic investigation strongly supports a radical process for the cyclization step.
Collapse
Affiliation(s)
- Diana Lamaa
- Université Paris-Saclay, CNRS, BioCIS, 92290 Châtenay-Malabry, France
| | - Camille Hauguel
- Université Paris-Saclay, CNRS, BioCIS, 92290 Châtenay-Malabry, France
| | - Hsin-Ping Lin
- Université Paris-Saclay, CNRS, BioCIS, 92290 Châtenay-Malabry, France
| | - Estelle Messe
- Université Paris-Saclay, CNRS, BioCIS, 92290 Châtenay-Malabry, France
| | - Vincent Gandon
- Institut de Chimie Moleculaire et des Materiaux d'Orsay (ICMMO), CNRS UMR 8182, Université Paris-Saclay, Batiment 420, 91405 Orsay Cedex, France.,Laboratoire de Chimie Moléculaire (LCM), CNRS UMR 9168, Ecole Polytechnique, Institut Polytechnique de Paris, route de Saclay, 91128 Palaiseau Cedex, France
| | - Mouad Alami
- Université Paris-Saclay, CNRS, BioCIS, 92290 Châtenay-Malabry, France
| | - Abdallah Hamze
- Université Paris-Saclay, CNRS, BioCIS, 92290 Châtenay-Malabry, France
| |
Collapse
|
7
|
Tan H, Laishram RD, Zhang X, Shi G, Li K, Chen J. Rhodium-Catalyzed Spiro Indenyl Benzoxazine Synthesis via C-H Activation/Annulation of 3-Aryl-2 H
-Benzo[ b
][1,4]oxazines and Alkynes. European J Org Chem 2020. [DOI: 10.1002/ejoc.202000668] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Heng Tan
- Key Laboratory of Chemistry in Ethnic Medicinal Resources; Yunnan Minzu University; 650500 Kunming Yunnan China
| | - Ronibala Devi Laishram
- Key Laboratory of Chemistry in Ethnic Medicinal Resources; Yunnan Minzu University; 650500 Kunming Yunnan China
| | - Xuexin Zhang
- Key Laboratory of Chemistry in Ethnic Medicinal Resources; Yunnan Minzu University; 650500 Kunming Yunnan China
| | - Guangrui Shi
- Key Laboratory of Chemistry in Ethnic Medicinal Resources; Yunnan Minzu University; 650500 Kunming Yunnan China
| | - Kangkui Li
- Key Laboratory of Chemistry in Ethnic Medicinal Resources; Yunnan Minzu University; 650500 Kunming Yunnan China
| | - Jingchao Chen
- Key Laboratory of Chemistry in Ethnic Medicinal Resources; Yunnan Minzu University; 650500 Kunming Yunnan China
| |
Collapse
|
8
|
Chiummiento L, D’Orsi R, Funicello M, Lupattelli P. Last Decade of Unconventional Methodologies for the Synthesis of Substituted Benzofurans. Molecules 2020; 25:E2327. [PMID: 32429435 PMCID: PMC7288127 DOI: 10.3390/molecules25102327] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2020] [Revised: 05/13/2020] [Accepted: 05/13/2020] [Indexed: 12/13/2022] Open
Abstract
This review describes the progress of the last decade on the synthesis of substituted benzofurans, which are useful scaffolds for the synthesis of numerous natural products and pharmaceuticals. In particular, new intramolecular and intermolecular C-C and/or C-O bond-forming processes, with transition-metal catalysis or metal-free are summarized. (1) Introduction. (2) Ring generation via intramolecular cyclization. (2.1) C7a-O bond formation: (route a). (2.2) O-C2 bond formation: (route b). (2.3) C2-C3 bond formation: (route c). (2.4) C3-C3a bond formation: (route d). (3) Ring generation via intermolecular cyclization. (3.1) C7a-O and C3-C3a bond formation (route a + d). (3.2) O-C2 and C2-C3 bond formation: (route b + c). (3.3) O-C2 and C3-C3a bond formation: (route b + d). (4) Benzannulation. (5) Conclusion.
Collapse
Affiliation(s)
- Lucia Chiummiento
- Department of Science, Via dell’Ateneo Lucano, 10, 85100 Potenza, Italy; (R.D.); (M.F.); (P.L.)
| | | | | | | |
Collapse
|
9
|
Zhang X, Zeng P, Zhang S, Chen Z. FeCl
3
‐Mediated Friedel‐Crafts Alkylation and Oxidative Annulations: Facile Synthesis of Benzofurans. ChemistrySelect 2020. [DOI: 10.1002/slct.202000381] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Xiongfei Zhang
- Collaborative Innovation Center of Yangtze River Delta Region Green PharmaceuticalsZhejiang University of TechnologyCollege of Pharmaceutical SciencesZhejiang University of Technology. Chao Wang Road 18th 310014 Hangzhou China
| | - Piaopiao Zeng
- Collaborative Innovation Center of Yangtze River Delta Region Green PharmaceuticalsZhejiang University of TechnologyCollege of Pharmaceutical SciencesZhejiang University of Technology. Chao Wang Road 18th 310014 Hangzhou China
| | - Shuo Zhang
- Collaborative Innovation Center of Yangtze River Delta Region Green PharmaceuticalsZhejiang University of TechnologyCollege of Pharmaceutical SciencesZhejiang University of Technology. Chao Wang Road 18th 310014 Hangzhou China
| | - Zhiwei Chen
- Collaborative Innovation Center of Yangtze River Delta Region Green PharmaceuticalsZhejiang University of TechnologyCollege of Pharmaceutical SciencesZhejiang University of Technology. Chao Wang Road 18th 310014 Hangzhou China
| |
Collapse
|
10
|
Zhang L, Cao T, Jiang H, Zhu S. Deconstructive Reorganization: De Novo Synthesis of Hydroxylated Benzofuran. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.201915212] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Ling Zhang
- Key Laboratory of Functional Molecular Engineering of Guangdong ProvinceSchool of Chemistry and Chemical EngineeringSouth China University of Technology 510640 Guangzhou China
| | - Tongxiang Cao
- Key Laboratory of Functional Molecular Engineering of Guangdong ProvinceSchool of Chemistry and Chemical EngineeringSouth China University of Technology 510640 Guangzhou China
| | - Huanfeng Jiang
- Key Laboratory of Functional Molecular Engineering of Guangdong ProvinceSchool of Chemistry and Chemical EngineeringSouth China University of Technology 510640 Guangzhou China
| | - Shifa Zhu
- Key Laboratory of Functional Molecular Engineering of Guangdong ProvinceSchool of Chemistry and Chemical EngineeringSouth China University of Technology 510640 Guangzhou China
- State Key Laboratory of Elemento-Organic ChemistryNankai University 300071 Tianjing China
- Singfar Laboratories 510670 Guangzhou China
| |
Collapse
|
11
|
Zhang L, Cao T, Jiang H, Zhu S. Deconstructive Reorganization: De Novo Synthesis of Hydroxylated Benzofuran. Angew Chem Int Ed Engl 2020; 59:4670-4677. [PMID: 31961991 DOI: 10.1002/anie.201915212] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2019] [Revised: 01/18/2020] [Indexed: 12/26/2022]
Abstract
An unprecedented deconstructive reorganization strategy for the de novo synthesis of hydroxylated benzofurans from kojic acid- or maltol-derived alkynes is reported. In this reaction, both the benzene and furan rings were simultaneously constructed, whereas the pyrone moiety of the kojic acid or maltol was deconstructed and then reorganized into the benzene ring as a six-carbon component. Through this strategy, at least one free hydroxyl group was introduced into the benzene ring in a substitution-pattern tunable fashion without protection-deprotection and redox adjustment. With this method, a large number of hydroxylated benzofuran derivatives with different substitution-patterns have been prepared efficiently. This methodology has also been shown as the key step in a collective total synthesis of hydroxylated benzofuran-containing natural products (11 examples).
Collapse
Affiliation(s)
- Ling Zhang
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, 510640, Guangzhou, China
| | - Tongxiang Cao
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, 510640, Guangzhou, China
| | - Huanfeng Jiang
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, 510640, Guangzhou, China
| | - Shifa Zhu
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, 510640, Guangzhou, China.,State Key Laboratory of Elemento-Organic Chemistry, Nankai University, 300071, Tianjing, China.,Singfar Laboratories, 510670, Guangzhou, China
| |
Collapse
|
12
|
Wang C, Han Y, Li M, Zhou X, Kong L, Li Y. Palladium-Catalyzed Allenylation/6π-Electrocyclization and 1,3-Hydrogen Migration: an Access to Naphtho[1,2-b
]furans. European J Org Chem 2019. [DOI: 10.1002/ejoc.201901604] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Chengyu Wang
- School of Chemistry and Chemical Engineering; Linyi University; The middle of Shuangling Road 276000 Linyi Shandong China
| | - Yu Han
- School of Chemistry and Chemical Engineering; Linyi University; The middle of Shuangling Road 276000 Linyi Shandong China
| | - Mengyuan Li
- School of Chemistry and Chemical Engineering; Linyi University; The middle of Shuangling Road 276000 Linyi Shandong China
| | - Xuemei Zhou
- School of Chemistry and Chemical Engineering; Linyi University; The middle of Shuangling Road 276000 Linyi Shandong China
| | - Lingkai Kong
- School of Chemistry and Chemical Engineering; Linyi University; The middle of Shuangling Road 276000 Linyi Shandong China
| | - Yanzhong Li
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes; School of Chemistry and Molecular Engineering; East China Normal University; 500 Dong-chuan Road 200241 Shanghai China
| |
Collapse
|
13
|
Iqbal N, Iqbal N, Maiti D, Cho EJ. Access to Multifunctionalized Benzofurans by Aryl Nickelation of Alkynes: Efficient Synthesis of the Anti‐Arrhythmic Drug Amiodarone. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201909015] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Naeem Iqbal
- Department of Chemistry Chung-Ang University 84 Heukseok-ro Dongjak-gu Seoul 06974 Republic of Korea
| | - Naila Iqbal
- Department of Chemistry Chung-Ang University 84 Heukseok-ro Dongjak-gu Seoul 06974 Republic of Korea
| | - Debabrata Maiti
- Department of Chemistry Indian Institute of Technology Bombay, Powai Mumbai 400076 India
| | - Eun Jin Cho
- Department of Chemistry Chung-Ang University 84 Heukseok-ro Dongjak-gu Seoul 06974 Republic of Korea
| |
Collapse
|
14
|
Iqbal N, Iqbal N, Maiti D, Cho EJ. Access to Multifunctionalized Benzofurans by Aryl Nickelation of Alkynes: Efficient Synthesis of the Anti‐Arrhythmic Drug Amiodarone. Angew Chem Int Ed Engl 2019; 58:15808-15812. [DOI: 10.1002/anie.201909015] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2019] [Revised: 08/12/2019] [Indexed: 12/22/2022]
Affiliation(s)
- Naeem Iqbal
- Department of Chemistry Chung-Ang University 84 Heukseok-ro Dongjak-gu Seoul 06974 Republic of Korea
| | - Naila Iqbal
- Department of Chemistry Chung-Ang University 84 Heukseok-ro Dongjak-gu Seoul 06974 Republic of Korea
| | - Debabrata Maiti
- Department of Chemistry Indian Institute of Technology Bombay, Powai Mumbai 400076 India
| | - Eun Jin Cho
- Department of Chemistry Chung-Ang University 84 Heukseok-ro Dongjak-gu Seoul 06974 Republic of Korea
| |
Collapse
|
15
|
Adak T, Schulmeister J, Dietl MC, Rudolph M, Rominger F, Hashmi ASK. Gold-Catalyzed Highly Chemo- and Regioselective C-H Bond Functionalization of Phenols with Haloalkynes. European J Org Chem 2019. [DOI: 10.1002/ejoc.201900653] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Tapas Adak
- Organisch-Chemisches Institut; Universität Heidelberg; Im Neuenheimer Feld 270 69120 Heidelberg Germany
| | - Jürgen Schulmeister
- Organisch-Chemisches Institut; Universität Heidelberg; Im Neuenheimer Feld 270 69120 Heidelberg Germany
| | - Martin C. Dietl
- Organisch-Chemisches Institut; Universität Heidelberg; Im Neuenheimer Feld 270 69120 Heidelberg Germany
| | - Matthias Rudolph
- Organisch-Chemisches Institut; Universität Heidelberg; Im Neuenheimer Feld 270 69120 Heidelberg Germany
| | - Frank Rominger
- Organisch-Chemisches Institut; Universität Heidelberg; Im Neuenheimer Feld 270 69120 Heidelberg Germany
| | - A. Stephen K. Hashmi
- Organisch-Chemisches Institut; Universität Heidelberg; Im Neuenheimer Feld 270 69120 Heidelberg Germany
- Chemistry Department; Faculty of Science; King Abdulaziz University; 21589 Jeddah Saudi Arabia
| |
Collapse
|
16
|
|
17
|
Dou Y, Kenry, Liu J, Jiang J, Zhu Q. Late‐Stage Direct
o
‐Alkenylation of Phenols by Pd
II
‐Catalyzed C−H Functionalization. Chemistry 2019; 25:6896-6901. [DOI: 10.1002/chem.201900530] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2019] [Indexed: 12/13/2022]
Affiliation(s)
- Yandong Dou
- College of Biotechnology and Bioengineering, & Collaborative Innovation Center of Yangtze, River Delta Region Green PharmaceuticalsZhejiang University of Technology Hangzhou 310014 China
| | - Kenry
- Department of Chemical and Biomolecular EngineeringNational University of Singapore 4 Engineering Drive 4 117585 Singapore Singapore
| | - Jiang Liu
- College of Biotechnology and Bioengineering, & Collaborative Innovation Center of Yangtze, River Delta Region Green PharmaceuticalsZhejiang University of Technology Hangzhou 310014 China
| | - Jianze Jiang
- College of Biotechnology and Bioengineering, & Collaborative Innovation Center of Yangtze, River Delta Region Green PharmaceuticalsZhejiang University of Technology Hangzhou 310014 China
| | - Qing Zhu
- College of Biotechnology and Bioengineering, & Collaborative Innovation Center of Yangtze, River Delta Region Green PharmaceuticalsZhejiang University of Technology Hangzhou 310014 China
| |
Collapse
|
18
|
Shaikh MM, Patel AP, Patel SP, Chikhalia KH. Synthesis, in vitro COX-1/COX-2 inhibition testing and molecular docking study of novel 1,4-benzoxazine derivatives. NEW J CHEM 2019. [DOI: 10.1039/c9nj00684b] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
The present work deals with an efficient and straightforward synthesis, biological activity and molecular docking study of novel 1,4-benzoxazine derivatives.
Collapse
Affiliation(s)
| | - Anuj P. Patel
- Department of Chemistry
- Gujarat University
- Ahmedabad
- India
| | - Shivani P. Patel
- Division of Biological and Life Sciences
- Ahmedabad University
- Ahmedabad
- India
| | | |
Collapse
|
19
|
Duarah G, Kaishap PP, Sarma B, Gogoi S. Ruthenium(II)-Catalyzed Dearomatized C-H Activation and Annulation Reaction of Vinylnaphthols with Alkynes: Access to Spiro-Pentacyclic Naphthalenones. Chemistry 2018; 24:10196-10200. [PMID: 29723429 DOI: 10.1002/chem.201801537] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2018] [Indexed: 01/24/2023]
Abstract
The ruthenium(II)-catalyzed annulation of vinylnaphthols and alkynes is described. The reaction proceeds through C-H activation, dearomatization, and alkyne insertion. This reaction affords spiro-pentacyclic naphthalenones that have biological significance in good yields.
Collapse
Affiliation(s)
- Gauri Duarah
- Applied Organic Chemistry, Chemical Sciences & Technology Division, CSIR-North East Institute of Science and Technology, Jorhat, 785006, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Partha P Kaishap
- Applied Organic Chemistry, Chemical Sciences & Technology Division, CSIR-North East Institute of Science and Technology, Jorhat, 785006, India
| | - Bipul Sarma
- Department of Chemical Sciences, Tezpur University, Napaam, Tezpur, 784028, India
| | - Sanjib Gogoi
- Applied Organic Chemistry, Chemical Sciences & Technology Division, CSIR-North East Institute of Science and Technology, Jorhat, 785006, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| |
Collapse
|
20
|
Yamane S, Hinoue T, Usuki Y, Itazaki M, Nakazawa H, Hayashi Y, Kawauchi S, Miura M, Satoh T. Iridium-Catalyzed Aerobic Coupling of Salicylaldehydes with Alkynes: A Remarkable Switch of Oxacyclic Product. Chemistry 2018; 24:7852-7855. [PMID: 29573094 DOI: 10.1002/chem.201801245] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2018] [Indexed: 12/12/2022]
Abstract
The iridium(III)/copper(II)-catalyzed dehydrogenative coupling of salicylaldehydes with internal alkynes proceeds efficiently under atmospheric oxygen through aldehyde C-H bond cleavage and decarbonylation. A variety of benzofuran derivatives can be synthesized by the environmentally benign procedure. DFT calculations suggest that this unique transformation involves the facile deinsertion of CO in the key metallacycle intermediate, which is in marked contrast to the corresponding rhodium(III) catalysis that leads to CO-retentive chromone derivatives.
Collapse
Affiliation(s)
- Shintaro Yamane
- Department of Chemistry, Graduate School of Science, Osaka City University, 3-3-138 Sugimoto, Sumiyoshi-ku, Osaka, 558-8585, Japan
| | - Tomoaki Hinoue
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, Suita, Osaka, 565-0871, Japan
| | - Yoshinosuke Usuki
- Department of Chemistry, Graduate School of Science, Osaka City University, 3-3-138 Sugimoto, Sumiyoshi-ku, Osaka, 558-8585, Japan
| | - Masumi Itazaki
- Department of Chemistry, Graduate School of Science, Osaka City University, 3-3-138 Sugimoto, Sumiyoshi-ku, Osaka, 558-8585, Japan
| | - Hiroshi Nakazawa
- Department of Chemistry, Graduate School of Science, Osaka City University, 3-3-138 Sugimoto, Sumiyoshi-ku, Osaka, 558-8585, Japan
| | - Yoshihiro Hayashi
- Department of Chemical Science and Engineering, School of Materials and Chemical Technology, Tokyo Institute of Technology, 2-12-1 (E4-6), Ookayama, Meguro-ku, Tokyo, 152-8552, Japan
| | - Susumu Kawauchi
- Department of Chemical Science and Engineering, School of Materials and Chemical Technology, Tokyo Institute of Technology, 2-12-1 (E4-6), Ookayama, Meguro-ku, Tokyo, 152-8552, Japan
| | - Masahiro Miura
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, Suita, Osaka, 565-0871, Japan
| | - Tetsuya Satoh
- Department of Chemistry, Graduate School of Science, Osaka City University, 3-3-138 Sugimoto, Sumiyoshi-ku, Osaka, 558-8585, Japan
| |
Collapse
|
21
|
Lakshminarayana B, Chakraborty J, Satyanarayana G, Subrahmanyam C. Recyclable Pd/CuFe2O4 nanowires: a highly active catalyst for C–C couplings and synthesis of benzofuran derivatives. RSC Adv 2018; 8:21030-21039. [PMID: 35542338 PMCID: PMC9080875 DOI: 10.1039/c8ra03697g] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2018] [Accepted: 06/01/2018] [Indexed: 12/02/2022] Open
Abstract
Pd/CuFe2O4 nanowire-catalyzed cross coupling transformations are described. Notably, these reactions showed excellent functional group tolerance. Further, the protocol is applied to a one-pot synthesis of benzofurans via a Sonogashira coupling and intramolecular etherification sequence. The catalyst was reused and found to maintain its activity and stability. Efficient heterogeneous Pd/CuFe2O4 nanowires which catalyze cross coupling transformations are described. The protocol is applied to a one-pot synthesis of benzofurans via Sonogashira coupling and an intramolecular etherification sequence.![]()
Collapse
Affiliation(s)
| | | | - G. Satyanarayana
- Department of Chemistry
- Indian Institute of Technology Hyderabad
- India
| | - Ch. Subrahmanyam
- Department of Chemistry
- Indian Institute of Technology Hyderabad
- India
| |
Collapse
|
22
|
Sharafi-Kolkeshvandi M, Nematollahi D, Pouladi F, Patoghi P. Electrochemical synthesis of some 2-aminobenzofuran-3-carbonitrile and 2-aminobenzofuran-3-carboxylate derivatives: product diversity by changing the applied current density. NEW J CHEM 2018. [DOI: 10.1039/c8nj02486c] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Green syntheses of two different series of new benzofuran derivatives were carried out by anodic oxidation of 4,4′-biphenol (4BP) in the presence of some CH-acid compounds (malononitrile, methyl cyanoacetate and ethyl cyanoacetate) as nucleophiles by controlling the potential during electrolysis.
Collapse
Affiliation(s)
| | | | | | - Pouria Patoghi
- Faculty of Chemistry
- Bu-Ali-Sina University
- Hamedan 65174
- Iran
| |
Collapse
|
23
|
Copper-Iodide- and Diorganyl-Diselenide-Promoted Cyclization of 2-Alkynylphenols: Alternative Approach to 3-Organoselanylbenzo[b
]furans. European J Org Chem 2017. [DOI: 10.1002/ejoc.201701205] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
|
24
|
Lei J, Su L, Zeng K, Chen T, Qiu R, Zhou Y, Au CT, Yin SF. Recent advances of catalytic processes on the transformation of alkynes into functional compounds. Chem Eng Sci 2017. [DOI: 10.1016/j.ces.2017.05.021] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
|
25
|
Wu J, Liao Z, Liu D, Chiang CW, Li Z, Zhou Z, Yi H, Zhang X, Deng Z, Lei A. From Anilines to Quinolines: Iodide- and Silver-Mediated Aerobic Double C−H Oxidative Annulation-Aromatization. Chemistry 2017; 23:15874-15878. [DOI: 10.1002/chem.201703218] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2017] [Indexed: 12/20/2022]
Affiliation(s)
- Jiwei Wu
- The Institute for Advanced Studies (IAS); College of Chemistry and Molecular Sciences; Wuhan University; Wuhan 430072 Hubei P. R. China
| | - Zhixiong Liao
- The Institute for Advanced Studies (IAS); College of Chemistry and Molecular Sciences; Wuhan University; Wuhan 430072 Hubei P. R. China
- Key Laboratory of Combinatorial Biosynthesis and Drug Discovery; Wuhan University, Ministry of Education, Wuhan University School of Pharmaceutical Sciences; Wuhan 430072 Hubei P. R. China
| | - Dong Liu
- The Institute for Advanced Studies (IAS); College of Chemistry and Molecular Sciences; Wuhan University; Wuhan 430072 Hubei P. R. China
| | - Chien-Wei Chiang
- The Institute for Advanced Studies (IAS); College of Chemistry and Molecular Sciences; Wuhan University; Wuhan 430072 Hubei P. R. China
| | - Zheng Li
- The Institute for Advanced Studies (IAS); College of Chemistry and Molecular Sciences; Wuhan University; Wuhan 430072 Hubei P. R. China
| | - Zhonghao Zhou
- The Institute for Advanced Studies (IAS); College of Chemistry and Molecular Sciences; Wuhan University; Wuhan 430072 Hubei P. R. China
| | - Hong Yi
- The Institute for Advanced Studies (IAS); College of Chemistry and Molecular Sciences; Wuhan University; Wuhan 430072 Hubei P. R. China
| | - Xu Zhang
- The Institute for Advanced Studies (IAS); College of Chemistry and Molecular Sciences; Wuhan University; Wuhan 430072 Hubei P. R. China
| | - Zixin Deng
- Key Laboratory of Combinatorial Biosynthesis and Drug Discovery; Wuhan University, Ministry of Education, Wuhan University School of Pharmaceutical Sciences; Wuhan 430072 Hubei P. R. China
| | - Aiwen Lei
- The Institute for Advanced Studies (IAS); College of Chemistry and Molecular Sciences; Wuhan University; Wuhan 430072 Hubei P. R. China
- Key Laboratory of Combinatorial Biosynthesis and Drug Discovery; Wuhan University, Ministry of Education, Wuhan University School of Pharmaceutical Sciences; Wuhan 430072 Hubei P. R. China
| |
Collapse
|
26
|
Ramesh E, Guntreddi T, Sahoo AK. AlCl3
-Catalyzed Intermolecular Annulation of Thiol Derivatives and Alkynes by 1,2-Sulfur Migration: Construction of 6-Substituted Benzo[b
]thiophenes. European J Org Chem 2017. [DOI: 10.1002/ejoc.201700607] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- E. Ramesh
- School of Chemistry; University of Hyderabad; 500046 Gachibowli, Hyderabad Telangana India
| | | | - Akhila K. Sahoo
- School of Chemistry; University of Hyderabad; 500046 Gachibowli, Hyderabad Telangana India
| |
Collapse
|
27
|
Watanabe K, Mino T, Ishikawa E, Okano M, Ikematsu T, Yoshida Y, Sakamoto M, Sato K, Yoshida K. Synthesis of
o
‐Allyloxy(ethynyl)benzene Derivatives by Cu‐Catalyzed Suzuki–Miyaura‐Type Reaction and Their Transformations into Heterocyclic Compounds. European J Org Chem 2017. [DOI: 10.1002/ejoc.201700217] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Kohei Watanabe
- Department of Applied Chemistry and Biotechnology Graduate School of Engineering Chiba University 1–33, Yayoi‐cho, Inage‐ku 263‐8522 Chiba Japan
| | - Takashi Mino
- Department of Applied Chemistry and Biotechnology Graduate School of Engineering Chiba University 1–33, Yayoi‐cho, Inage‐ku 263‐8522 Chiba Japan
- Molecular Chirality Research Center Chiba University 1‐33, Yayoi‐cho, Inage‐ku 263‐8522 Chiba Japan
| | - Eri Ishikawa
- Department of Applied Chemistry and Biotechnology Graduate School of Engineering Chiba University 1–33, Yayoi‐cho, Inage‐ku 263‐8522 Chiba Japan
| | - Miyu Okano
- Department of Applied Chemistry and Biotechnology Graduate School of Engineering Chiba University 1–33, Yayoi‐cho, Inage‐ku 263‐8522 Chiba Japan
| | - Tatsuya Ikematsu
- Department of Applied Chemistry and Biotechnology Graduate School of Engineering Chiba University 1–33, Yayoi‐cho, Inage‐ku 263‐8522 Chiba Japan
| | - Yasushi Yoshida
- Department of Applied Chemistry and Biotechnology Graduate School of Engineering Chiba University 1–33, Yayoi‐cho, Inage‐ku 263‐8522 Chiba Japan
- Molecular Chirality Research Center Chiba University 1‐33, Yayoi‐cho, Inage‐ku 263‐8522 Chiba Japan
| | - Masami Sakamoto
- Department of Applied Chemistry and Biotechnology Graduate School of Engineering Chiba University 1–33, Yayoi‐cho, Inage‐ku 263‐8522 Chiba Japan
- Molecular Chirality Research Center Chiba University 1‐33, Yayoi‐cho, Inage‐ku 263‐8522 Chiba Japan
| | - Kazuki Sato
- Department of Chemistry Graduate School of Science Chiba University 1‐33, Yayoi‐cho, Inage‐ku 263‐8522 Chiba Japan
| | - Kazuhiro Yoshida
- Molecular Chirality Research Center Chiba University 1‐33, Yayoi‐cho, Inage‐ku 263‐8522 Chiba Japan
- Department of Chemistry Graduate School of Science Chiba University 1‐33, Yayoi‐cho, Inage‐ku 263‐8522 Chiba Japan
| |
Collapse
|
28
|
Kibriya G, Samanta S, Singsardar M, Jana S, Hajra A. Sodium Persulfate Mediated Selenylation of Arenofurans. European J Org Chem 2017. [DOI: 10.1002/ejoc.201700338] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Golam Kibriya
- Department of Chemistry; Visva-Bharati (A Central University); 731235 Santiniketan West Bengal India
| | - Sadhanendu Samanta
- Department of Chemistry; Visva-Bharati (A Central University); 731235 Santiniketan West Bengal India
| | - Mukta Singsardar
- Department of Chemistry; Visva-Bharati (A Central University); 731235 Santiniketan West Bengal India
| | - Sourav Jana
- Department of Chemistry; Visva-Bharati (A Central University); 731235 Santiniketan West Bengal India
| | - Alakananda Hajra
- Department of Chemistry; Visva-Bharati (A Central University); 731235 Santiniketan West Bengal India
| |
Collapse
|
29
|
Naveen T, Deb A, Maiti D. Copper/P(t
Bu)3
-Mediated Regiospecific Synthesis of Fused Furans and Naphthofurans. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201609401] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Togati Naveen
- Department of Chemistry; Indian Institute of Technology Bombay; Powai Mumbai 400076 India
| | - Arghya Deb
- Department of Chemistry; Indian Institute of Technology Bombay; Powai Mumbai 400076 India
| | - Debabrata Maiti
- Department of Chemistry; Indian Institute of Technology Bombay; Powai Mumbai 400076 India
| |
Collapse
|
30
|
Naveen T, Deb A, Maiti D. Copper/P(tBu) 3 -Mediated Regiospecific Synthesis of Fused Furans and Naphthofurans. Angew Chem Int Ed Engl 2016; 56:1111-1115. [PMID: 27996192 DOI: 10.1002/anie.201609401] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2016] [Indexed: 01/12/2023]
Abstract
A novel [3+2] cycloaddition between a variety of cyclic ketones and diverse olefins or alkynes can be effectively promoted by copper in combination with the tri-tert-butylphosphine [P(tBu)3 ] ligand. This protocol exhibits excellent selectivity and provides an exemplary set of fused heterocycles in good to excellent yields. Present strategy also represents an extremely simple and atom-economic way to construct substituted fused furans and naphthofurans from readily available starting materials under mild reaction conditions. The utility of the method is further demonstrated by the synthesis of chiral furans from (R)-(-)-carvone and (S)-(+)-carvone. A plausible mechanism involving the oxidative radical cyclization has been suggested based on experimental observations.
Collapse
Affiliation(s)
- Togati Naveen
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai, 400076, India
| | - Arghya Deb
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai, 400076, India
| | - Debabrata Maiti
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai, 400076, India
| |
Collapse
|
31
|
Gulías M, Mascareñas JL. Metallkatalysierte Anellierungen durch Aktivierung und Spaltung von C-H-Bindungen. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201511567] [Citation(s) in RCA: 114] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Moisés Gulías
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS) und Departamento de Química Orgánica, 15782; Universidade de Santiago de Compostela; Spanien
| | - José Luis Mascareñas
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS) und Departamento de Química Orgánica, 15782; Universidade de Santiago de Compostela; Spanien
| |
Collapse
|
32
|
Gulías M, Mascareñas JL. Metal-Catalyzed Annulations through Activation and Cleavage of C−H Bonds. Angew Chem Int Ed Engl 2016; 55:11000-19. [DOI: 10.1002/anie.201511567] [Citation(s) in RCA: 406] [Impact Index Per Article: 50.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2015] [Revised: 02/17/2016] [Indexed: 12/27/2022]
Affiliation(s)
- Moisés Gulías
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS) and Departamento de Química Orgánica, 15782; Universidade de Santiago de Compostela; Spain
| | - José Luis Mascareñas
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS) and Departamento de Química Orgánica, 15782; Universidade de Santiago de Compostela; Spain
| |
Collapse
|
33
|
Zhang M, Huang G. Mechanism and Selectivity of RuII- and RhIII-Catalyzed Oxidative Spiroannulation of Naphthols and Phenols with Alkynes through a C−H Activation/Dearomatization Strategy. Chemistry 2016; 22:9356-65. [DOI: 10.1002/chem.201600884] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2016] [Indexed: 01/19/2023]
Affiliation(s)
- Mei Zhang
- Department of Chemistry; School of Science; Tianjin University; Tianjin 300072 P.R. China
| | - Genping Huang
- Department of Chemistry; School of Science; Tianjin University; Tianjin 300072 P.R. China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin); Tianjin 300072 P.R. China
| |
Collapse
|
34
|
Yang D, Zhu Y, Yang N, Jiang Q, Liu R. One-Step Synthesis of Substituted Benzofurans from ortho
- Alkenylphenols via
Palladium-Catalyzed CH Functionalization. Adv Synth Catal 2016. [DOI: 10.1002/adsc.201600082] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
|
35
|
Patel M, Saunthwal RK, Dhaked DK, Bharatam PV, Verma AK. Metal-free Intermolecular Hydrophenoxylation of Aryl Alkynes. ASIAN J ORG CHEM 2015. [DOI: 10.1002/ajoc.201500479] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Monika Patel
- Department of Chemistry; University of Delhi; Delhi- 110007 India
| | | | - Devendra K. Dhaked
- Department of Medicinal Chemistry; NIPER, S.A.S. Nagar; Mohali Punjab 160062 India
| | - Prasad V. Bharatam
- Department of Medicinal Chemistry; NIPER, S.A.S. Nagar; Mohali Punjab 160062 India
| | | |
Collapse
|
36
|
Ghosh M, Santra S, Mondal P, Kundu D, Hajra A. Diversified Synthesis of Furans by Coupling between Enols/1,3-Dicarbonyl Compounds and Nitroolefins: Direct Access to Dioxa[5]helicenes. Chem Asian J 2015; 10:2525-36. [PMID: 26227173 DOI: 10.1002/asia.201500710] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2015] [Indexed: 01/06/2023]
Abstract
A versatile method for the diversified synthesis of furans and arenofurans has been developed that proceeds through K2CO3-promoted cyclization between enols/1,3-dicarbonyl compounds and nitroolefins at reflux in EtOH. This facile method has been successfully employed in the synthesis of benzotrifuran derivatives, which are useful hole-transporting materials. This procedure also provides direct access to dioxa[5]helicenes. This reaction offers a broad substrate scope, uses an inexpensive base and environmentally benign solvent, and is operationally simple.
Collapse
Affiliation(s)
- Monoranjan Ghosh
- Department of Chemistry, Visva-Bharati (A Central University), Santiniketan, 731235, West Bengal, India
| | - Sougata Santra
- Department of Chemistry, Visva-Bharati (A Central University), Santiniketan, 731235, West Bengal, India
| | - Pallab Mondal
- Department of Chemistry, Visva-Bharati (A Central University), Santiniketan, 731235, West Bengal, India
| | - Dhiman Kundu
- Department of Chemistry, Visva-Bharati (A Central University), Santiniketan, 731235, West Bengal, India
| | - Alakananda Hajra
- Department of Chemistry, Visva-Bharati (A Central University), Santiniketan, 731235, West Bengal, India.
| |
Collapse
|
37
|
Tokoro Y, Sugita K, Fukuzawa SI. Synthesis of Silaphenalenes by Ruthenium-Catalyzed Annulation between 1-Naphthylsilanes and Internal Alkynes through CH Bond Cleavage. Chemistry 2015; 21:13229-32. [DOI: 10.1002/chem.201502746] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2015] [Indexed: 11/06/2022]
|
38
|
Agasti S, Maity S, Szabo KJ, Maiti D. Palladium-Catalyzed Synthesis of 2,3-Disubstituted Benzofurans: An Approach Towards the Synthesis of Deuterium Labeled Compounds. Adv Synth Catal 2015; 357:2331-2338. [PMID: 26347405 PMCID: PMC4552971 DOI: 10.1002/adsc.201500308] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2015] [Revised: 04/30/2015] [Indexed: 11/21/2022]
Abstract
Palladium-catalyzed oxidative annulations between phenols and alkenylcarboxylic acids produced a library of benzofuran compounds. Depending on the nature of the substitution of the phenol precursor, either 2,3-dialkylbenzofurans or 2-alkyl-3-methylene-2,3-dihydrobenzofurans can be synthesized with excellent regioselectivity. Reactions between conjugated 5-phenylpenta-2,4-dienoic acids and phenol gave 3-alkylidenedihydrobenzofuran alkaloid motifs while biologically active 7-arylbenzofuran derivatives were prepared by starting from 2-phenylphenols. More interestingly, selective incorporation of deuterium from D2O has been discovered, which offers an attractive one-step method to access deuterated compounds.
Collapse
Affiliation(s)
- Soumitra Agasti
- Department of Chemistry, Indian Institute of Technology Bombay Powai, Mumbai - 400076, India E-mail:
| | - Soham Maity
- Department of Chemistry, Indian Institute of Technology Bombay Powai, Mumbai - 400076, India E-mail:
| | - Kalman J Szabo
- Department of Organic Chemistry, Stockholm University SE-106 91 Stockholm, Sweden E-mail:
| | - Debabrata Maiti
- Department of Chemistry, Indian Institute of Technology Bombay Powai, Mumbai - 400076, India E-mail:
| |
Collapse
|
39
|
Maity S, Agasti S, Earsad AM, Hazra A, Maiti D. Nickel-Catalyzed Insertion of Alkynes and Electron-Deficient Olefins into Unactivated sp(3) C-H Bonds. Chemistry 2015; 21:11320-4. [PMID: 26121618 DOI: 10.1002/chem.201501962] [Citation(s) in RCA: 66] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2015] [Indexed: 11/08/2022]
Abstract
Insertion of unsaturated systems such as alkynes and olefins into unactivated sp(3) C-H bonds remains an unexplored problem. We herein address this issue by successfully incorporating a wide variety of functionalized alkynes and electron-deficient olefins into the unactivated sp(3) C-H bond of pivalic acid derivatives with excellent syn- and linear- selectivity. A strongly chelating 8-aminoquinoline directing group proved beneficial for these insertion reactions, while an air-stable and inexpensive Ni(II) salt has been employed as the active catalyst.
Collapse
Affiliation(s)
- Soham Maity
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai-400076 (India)
| | - Soumitra Agasti
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai-400076 (India)
| | - Arif Mahammad Earsad
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai-400076 (India)
| | - Avijit Hazra
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai-400076 (India)
| | - Debabrata Maiti
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai-400076 (India).
| |
Collapse
|
40
|
Gandeepan P, Cheng CH. Transition-Metal-Catalyzed π-Bond-Assisted CH Bond Functionalization: An Emerging Trend in Organic Synthesis. Chem Asian J 2015; 10:824-38. [DOI: 10.1002/asia.201403224] [Citation(s) in RCA: 151] [Impact Index Per Article: 16.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2014] [Indexed: 01/06/2023]
|
41
|
Oonishi Y, Gómez-Suárez A, Martin AR, Makida Y, Slawin AMZ, Nolan SP. [Au]/[Pd] Multicatalytic processes: direct one-pot access to benzo[c]chromenes and benzo[b]furans. Chemistry 2014; 20:13507-10. [PMID: 25168654 DOI: 10.1002/chem.201404630] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2014] [Indexed: 12/12/2022]
Abstract
A new synthetic protocol that combines the advantages offered by eco-friendly solvent-free reactions and sequential transformations is reported. This strategy offers straightforward access to benzo[c]chromenes and benzo[b]furans from commercially available starting materials. This two-step, one-pot strategy consists of an Au-catalyzed hydrophenoxylation process followed by Pd-catalyzed C-H activation or Mizoroki-Heck reactions. The selectivity of the process towards C-H activation or Mizoroki-Heck reaction can be easily tuned.
Collapse
Affiliation(s)
- Yoshihiro Oonishi
- EaStCHEM School of Chemistry, University of St Andrews, St Andrews, KY16 9ST (UK), Fax: (+44) 1334-463808; Current address: Faculty of Pharmaceutical Sciences, Hokkaido University, Sapporo 060-0812 (Japan)
| | | | | | | | | | | |
Collapse
|
42
|
Samala S, Pallavi P, Kumar R, Arigela RK, Singh G, Ampapathi RS, Priya A, Datta S, Patra A, Kundu B. One-Pot Synthesis of Highly Fluorescent Pyrido[1,2-a]indole Derivatives through CH/NH Activation: Photophysical Investigations and Application in Cell Imaging. Chemistry 2014; 20:14344-50. [DOI: 10.1002/chem.201404189] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2014] [Indexed: 01/09/2023]
|
43
|
Burns DJ, Lam HW. Catalytic 1,4-rhodium(III) migration enables 1,3-enynes to function as one-carbon oxidative annulation partners in C-H functionalizations. Angew Chem Int Ed Engl 2014; 53:9931-5. [PMID: 25048465 PMCID: PMC4464529 DOI: 10.1002/anie.201406072] [Citation(s) in RCA: 135] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2014] [Indexed: 12/26/2022]
Abstract
1,3-Enynes containing allylic hydrogens cis to the alkyne are shown to act as one-carbon partners, rather than two-carbon partners, in various rhodium-catalyzed oxidative annulations. The mechanism of these unexpected transformations is proposed to occur through double C-H activation, involving a hitherto rare example of the 1,4-migration of a Rh(III) species. This phenomenon is general across a variety of substrates, and provides a diverse range of heterocyclic products.
Collapse
Affiliation(s)
- David J Burns
- School of Chemistry, University of Nottingham, University ParkNottingham, NG7 2RD (UK)
| | - Hon Wai Lam
- School of Chemistry, University of Nottingham, University ParkNottingham, NG7 2RD (UK)
| |
Collapse
|
44
|
Burns DJ, Lam HW. Catalytic 1,4-Rhodium(III) Migration Enables 1,3-Enynes to Function as One-Carbon Oxidative Annulation Partners in CH Functionalizations. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201406072] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
|
45
|
Yu DG, de Azambuja F, Glorius F. Direkte Funktionalisierung mit vollständiger und schaltbarer Positionskontrolle: freies Phenol als Vorbild. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201403894] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
|
46
|
Yu DG, de Azambuja F, Glorius F. Direct Functionalization with Complete and Switchable Positional Control: Free Phenol as a Role Model. Angew Chem Int Ed Engl 2014; 53:7710-2. [DOI: 10.1002/anie.201403894] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2014] [Indexed: 11/10/2022]
|
47
|
Murakami K, Yorimitsu H, Osuka A. Practical, Modular, and General Synthesis of Benzofurans through Extended Pummerer Annulation/Cross-Coupling Strategy. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201403288] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
|
48
|
Murakami K, Yorimitsu H, Osuka A. Practical, modular, and general synthesis of benzofurans through extended Pummerer annulation/cross-coupling strategy. Angew Chem Int Ed Engl 2014; 53:7510-3. [PMID: 24923582 DOI: 10.1002/anie.201403288] [Citation(s) in RCA: 102] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2014] [Indexed: 12/25/2022]
Abstract
Operationally simple, efficient, and widely applicable Pummerer annulations of simple phenols with ketene dithioacetal monoxides, with the aid of trifluoroacetic anhydride, have been shown to provide a variety of benzofurans having a methylthio group at the 2-position. Subsequent and newly developed nickel-catalyzed arylation at the methylthio group culminates in diversity-oriented synthesis of multisubstituted benzofurans. Our extended Pummerer annulation/cross-coupling sequence is powerful enough to synthesize biologically active natural products as well as highly fluorescent benzofuran derivatives.
Collapse
Affiliation(s)
- Kei Murakami
- Department of Chemistry, Graduate School of Science, Kyoto University, Kitashirakawa, Sakyo-ku, Kyoto 606-8502 (Japan); The Hakubi Center for Advanced Research, Kyoto University (Japan)
| | | | | |
Collapse
|
49
|
Kujawa S, Best D, Burns DJ, Lam HW. Synthesis of Spirocyclic Enones by Rhodium-Catalyzed Dearomatizing Oxidative Annulation of 2-Alkenylphenols with Alkynes and Enynes. Chemistry 2014; 20:8599-602. [DOI: 10.1002/chem.201403454] [Citation(s) in RCA: 92] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2014] [Indexed: 01/28/2023]
|
50
|
Kommagalla Y, Srinivas K, Ramana CV. Ru-catalyzed branched versus linear selective C3-alkylation of 2-aroylbenzofurans with acrylates via C-H activation. Chemistry 2014; 20:7884-9. [PMID: 24838794 DOI: 10.1002/chem.201400401] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2014] [Revised: 04/04/2014] [Indexed: 02/01/2023]
Abstract
The carbonyl-directed C3-H activation and alkylation of 2-aroylbenzo[b]furans with acrylates occurs selectively either in a linear or branched fashion, depending on the catalyst employed; [Ru(p-cymene)Cl2]2 or Ru(PPh3)3Cl2, respectively. Two alternate pathways--funded upon the differences in steric and electronic preferences of these two complexes--is proposed for the selectivity of linear versus branched products.
Collapse
Affiliation(s)
- Yadagiri Kommagalla
- Division of Organic Chemistry, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune-411 008 (India), Fax: (+91) 20 2590 2629
| | | | | |
Collapse
|