1
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Maharana R, Bhanja R, Mal P, Samanta K. Investigation of the Effect of Solvents on the Synthesis of Aza-flavanone from Aminochalcone Facilitated by Halogen Bonding. ACS OMEGA 2023; 8:33785-33793. [PMID: 37744869 PMCID: PMC10515354 DOI: 10.1021/acsomega.3c04207] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/14/2023] [Accepted: 08/18/2023] [Indexed: 09/26/2023]
Abstract
It has been recognized that CBr4 can give rise to a noncovalent interaction known as halogen bond (XB). CBr4 was found to catalyze, in terms of XB formation, the transformation of 2'-aminochalcone to aza-flavanone through an intramolecular Michael addition reaction. The impact of XB and the resulting yield of aza-flavanone exhibited a pronounced dependence on the characteristics of the solvent. Notably, yields of 88% in ethanol and 33% in DMSO were achieved, while merely a trace amount of the product was detected in benzene. In this work, we use a computational modeling study to understand this variance in yield. The reaction is modeled at the level of density functional theory (based on the M06-2X exchange-correlation functional) with all-electron basis sets of triple-ζ quality. Grimme's dispersion correction is incorporated to account for the noncovalent interactions accurately. Harmonic frequency calculations are carried out to establish the character of the optimized structures (minimum or saddle point). Our calculations confirm the formation of an XB between CBr4 and the reacting species and its role in lowering the activation energy barrier. Stronger orbital interactions and significant lowering of the steric repulsion were found to be important in lowering the activation barrier. The negligible yield in the nonpolar solvent benzene may be attributed to the high activation energy as well as the inadequate stabilization of the zwitterionic intermediate. In ethanol, a protic solvent, additional H-bonding contributes to further lowering of the activation barrier and better stabilization of the zwitterionic intermediate. The combined effects of solvent polarity, XB, and H-bond are likely to give rise to an excellent yield of aza-flavanone in ethanol.
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Affiliation(s)
- Rajat
Rajiv Maharana
- School
of Basic Sciences, Indian Institute of Technology
Bhubaneswar, Argul, Odisha 752050, India
| | - Rosalin Bhanja
- School
of Chemical Sciences, National Institute
of Science Education and Research (NISER), An OCC of Homi Bhabha National
Institute, Bhubaneswar, PO Bhimpur-Padanpur, Via Jatni, District Khurda, Odisha 752050, India
| | - Prasenjit Mal
- School
of Chemical Sciences, National Institute
of Science Education and Research (NISER), An OCC of Homi Bhabha National
Institute, Bhubaneswar, PO Bhimpur-Padanpur, Via Jatni, District Khurda, Odisha 752050, India
| | - Kousik Samanta
- School
of Basic Sciences, Indian Institute of Technology
Bhubaneswar, Argul, Odisha 752050, India
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2
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Cao H, Long CJ, Yang D, Guan Z, He YH. Electrochemical Cross-Dehydrogenative Coupling of Isochroman and Unactivated Ketones. J Org Chem 2023; 88:4145-4154. [PMID: 36952394 DOI: 10.1021/acs.joc.2c02616] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/25/2023]
Abstract
An unprecedented electrochemical cross-dehydrogenative coupling reaction between isochroman and unactivated ketones to directly synthesize α-substituted isochromans has been developed. This strategy provides a facile and efficient procedure to the direct activation of C(sp3)-H bond adjacent to the O atom of isochroman. The method features high atom economy, chemical oxidant-free, and mild conditions, in which methanesulfonic acid (MsOH) acts as both electrolyte and catalyst, making the process more convenient and environmentally friendly. Gram-scale experiment and synthesis of antitumor active compounds demonstrate the great potential of this protocol for practical applications.
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Affiliation(s)
- Huan Cao
- Key Laboratory of Applied Chemistry of Chongqing Municipality, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
| | - Chao-Jiu Long
- Key Laboratory of Applied Chemistry of Chongqing Municipality, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
| | - Dan Yang
- Key Laboratory of Applied Chemistry of Chongqing Municipality, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
| | - Zhi Guan
- Key Laboratory of Applied Chemistry of Chongqing Municipality, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
| | - Yan-Hong He
- Key Laboratory of Applied Chemistry of Chongqing Municipality, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
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3
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Muller C, Horký F, Vayer M, Golushko A, Lebœuf D, Moran J. Synthesis of functionalised isochromans: epoxides as aldehyde surrogates in hexafluoroisopropanol. Chem Sci 2023; 14:2983-2989. [PMID: 36937595 PMCID: PMC10016621 DOI: 10.1039/d2sc06692k] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2022] [Accepted: 02/13/2023] [Indexed: 02/17/2023] Open
Abstract
The oxa-Pictet-Spengler reaction is arguably the most straightforward and modular way to construct the privileged isochroman motif, but its scope is largely limited to benzaldehyde derivatives and to electron-rich β-phenylethanols that lack substitution along the aliphatic chain. Here we describe a variant of this reaction starting from an epoxide, rather than an aldehyde, that greatly expands the scope and rate of the reaction (<1 h, 20 °C). Besides facilitating the initial Meinwald rearrangement, the use of hexafluoroisopropanol (HFIP) as a solvent expands the electrophile scope to include partners equivalent to ketones, aliphatic aldehydes, and phenylacetyl aldehydes, and the nucleophile scope to include modestly electronically deactivated and highly substituted β-phenylethanols. The products could be easily further derivatised in the same pot by subsequent ring-opening, reductions, and intra- and intermolecular Friedel-Crafts reactions, also in HFIP. Finally, owing to the high pharmacological relevance of the isochroman motif, the synthesis of drug analogues was demonstrated.
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Affiliation(s)
- Cyprien Muller
- Institut de Science et d'Ingénierie Supramoléculaires (ISIS), CNRS UMR 7006, Université de Strasbourg 8 allée Gaspard Monge 67000 Strasbourg France
| | - Filip Horký
- Institut de Science et d'Ingénierie Supramoléculaires (ISIS), CNRS UMR 7006, Université de Strasbourg 8 allée Gaspard Monge 67000 Strasbourg France
| | - Marie Vayer
- Institut de Science et d'Ingénierie Supramoléculaires (ISIS), CNRS UMR 7006, Université de Strasbourg 8 allée Gaspard Monge 67000 Strasbourg France
| | - Andrei Golushko
- Institut de Science et d'Ingénierie Supramoléculaires (ISIS), CNRS UMR 7006, Université de Strasbourg 8 allée Gaspard Monge 67000 Strasbourg France
| | - David Lebœuf
- Institut de Science et d'Ingénierie Supramoléculaires (ISIS), CNRS UMR 7006, Université de Strasbourg 8 allée Gaspard Monge 67000 Strasbourg France
| | - Joseph Moran
- Institut de Science et d'Ingénierie Supramoléculaires (ISIS), CNRS UMR 7006, Université de Strasbourg 8 allée Gaspard Monge 67000 Strasbourg France
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4
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Wen X, Gao M, Chen Y, Zhao Y, Qin W, Hu L. Tunable Reaction Mode of Bifunctional Peroxides with Ketones to Access α-Oxacyclic Ketones and Enals. Org Lett 2022; 24:8387-8391. [DOI: 10.1021/acs.orglett.2c03440] [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)
- Xiaolu Wen
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, China
| | - Min Gao
- College of Chemistry and Chemical Engineering, Yan’an University, Yan’an 716000, China
| | - Yiwei Chen
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, China
| | - Yukun Zhao
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, China
| | - Wenling Qin
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, China
| | - Lin Hu
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, China
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5
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Wang Z, Niu K, Liu Y, Song H, Wang Q. Electrochemical α-C(sp 3)-H/O-H cross-coupling of isochromans and alcohols assisted by benzoic acid. Chem Commun (Camb) 2022; 58:10949-10952. [PMID: 36082778 DOI: 10.1039/d2cc03883h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Isochroman moieties are present in a wide variety of biologically active molecules, but converting isochromans to α-substituted derivatives under mild conditions is challenging. Herein, we report a mild, convenient protocol for synthesis of α-alkoxy isochroman derivatives by means of electrochemical α-C(sp3)-H/O-H cross-coupling reactions of isochromans and alcohols in the presence of benzoic acid, which facilitated the electro-oxidation process and increased the product yield. Various alcohols and isochromans, as well as other structurally similar substrates, gave moderate to high yields of the desired coupling products, and the reaction could be carried out on a gram scale.
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Affiliation(s)
- Zhuang Wang
- State Key Laboratory of Elemento-Organic Chemistry, Research Institute of Elemento-Organic Chemistry, College of Chemistry, Frontiers Science Center for New Organic Matter, Nankai University, Tianjin, 300071, People's Republic of China.
| | - Kaikai Niu
- State Key Laboratory of Elemento-Organic Chemistry, Research Institute of Elemento-Organic Chemistry, College of Chemistry, Frontiers Science Center for New Organic Matter, Nankai University, Tianjin, 300071, People's Republic of China.
| | - Yuxiu Liu
- State Key Laboratory of Elemento-Organic Chemistry, Research Institute of Elemento-Organic Chemistry, College of Chemistry, Frontiers Science Center for New Organic Matter, Nankai University, Tianjin, 300071, People's Republic of China.
| | - Hongjian Song
- State Key Laboratory of Elemento-Organic Chemistry, Research Institute of Elemento-Organic Chemistry, College of Chemistry, Frontiers Science Center for New Organic Matter, Nankai University, Tianjin, 300071, People's Republic of China.
| | - Qingmin Wang
- State Key Laboratory of Elemento-Organic Chemistry, Research Institute of Elemento-Organic Chemistry, College of Chemistry, Frontiers Science Center for New Organic Matter, Nankai University, Tianjin, 300071, People's Republic of China.
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6
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Panda J, Raiguru BP, Mishra M, Mohapatra S, Nayak S. Recent Advances in the Synthesis of Imidazo[1,2‐
a
]pyridines: A Brief Review. ChemistrySelect 2022. [DOI: 10.1002/slct.202103987] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Jasmine Panda
- Organic Synthesis Laboratory Department of Chemistry Ravenshaw University Cuttack 753003 Odisha India
| | - Bishnu P. Raiguru
- Organic Synthesis Laboratory Department of Chemistry Ravenshaw University Cuttack 753003 Odisha India
| | - Mitali Mishra
- Organic Synthesis Laboratory Department of Chemistry Ravenshaw University Cuttack 753003 Odisha India
| | - Seetaram Mohapatra
- Organic Synthesis Laboratory Department of Chemistry Ravenshaw University Cuttack 753003 Odisha India
| | - Sabita Nayak
- Organic Synthesis Laboratory Department of Chemistry Ravenshaw University Cuttack 753003 Odisha India
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7
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Kumar S, Shah TA, Punniyamurthy T. Recent advances in the application of tetrabromomethane in organic synthesis. Org Chem Front 2021. [DOI: 10.1039/d0qo01369b] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
This review article covers the use of tetrabromomethane as mediator, catalyst and reagents for organic synthesis for the period from 2007 to 2020.
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Affiliation(s)
- Sandeep Kumar
- Department of Chemistry
- DAV University
- Jalandhar-144012
- India
| | - Tariq A. Shah
- Department of Chemistry
- Indian Institute of Technology Guwahati
- Guwahati-781039
- India
- Department of Chemistry
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8
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Yunusova SN, Bolotin DS, Vovk MA, Tolstoy PM, Kukushkin VY. Tetrabromomethane as an Organic Catalyst: a Kinetic Study of CBr
4
‐Catalyzed Schiff Condensation. European J Org Chem 2020. [DOI: 10.1002/ejoc.202001180] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Sevilya N. Yunusova
- Institute of Chemistry Saint Petersburg State University Universitetskaya Nab. 7/9 Saint Petersburg Russian Federation
| | - Dmitrii S. Bolotin
- Institute of Chemistry Saint Petersburg State University Universitetskaya Nab. 7/9 Saint Petersburg Russian Federation
| | - Mikhail A. Vovk
- Center for Magnetic Resonance Saint Petersburg State University Saint Petersburg Russian Federation
| | - Peter M. Tolstoy
- Institute of Chemistry Saint Petersburg State University Universitetskaya Nab. 7/9 Saint Petersburg Russian Federation
| | - Vadim Yu. Kukushkin
- Institute of Chemistry Saint Petersburg State University Universitetskaya Nab. 7/9 Saint Petersburg Russian Federation
- Laboratory of Crystal Engineering of Functional Materials South Ural State University 76, Lenin Av. 454080 Chelyabinsk Russian Federation
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9
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Alegre-Requena JV, Valero-Tena A, Sonsona IG, Uriel S, Herrera RP. Simple iodoalkyne-based organocatalysts for the activation of carbonyl compounds. Org Biomol Chem 2020; 18:1594-1601. [PMID: 31934687 DOI: 10.1039/c9ob02688f] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
A novel approach for the formation of bisindolylmethane derivatives (BIMs) is described as a proof of concept to evaluate the catalytic capacity of iodoalkynes. The use of these derivatives is reported as an example of simple halogen bond-based organocatalyst. This kind of activation has not been used before for the synthesis of bisindolylmethane derivatives 3. Interestingly, the preparation of 3-(1H-indol-3-yl)-1-phenylbutan-1-one (8) has been also achieved for the first time with an iodoalkyne derivative. We prove the efficiency of this family of new catalysts by developing a simple and easy operational methodology, opening the door to the development of alternative catalysts in the area of halogen bond-based organocatalysts.
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Affiliation(s)
- Juan V Alegre-Requena
- Laboratorio de Organocatálisis Asimétrica. Dpto de Química Orgánica. Instituto de Síntesis Química y Catálisis Homogénea (ISQCH) CSIC-Universidad de Zaragoza. C/Pedro Cerbuna 12, 50009 Zaragoza, Spain.
| | - Alberto Valero-Tena
- Laboratorio de Organocatálisis Asimétrica. Dpto de Química Orgánica. Instituto de Síntesis Química y Catálisis Homogénea (ISQCH) CSIC-Universidad de Zaragoza. C/Pedro Cerbuna 12, 50009 Zaragoza, Spain. and Dpto. de Química Orgánica, Escuela de Ingeniería y Arquitectura, Universidad de Zaragoza, 50018 Zaragoza, Spain
| | - Isaac G Sonsona
- Laboratorio de Organocatálisis Asimétrica. Dpto de Química Orgánica. Instituto de Síntesis Química y Catálisis Homogénea (ISQCH) CSIC-Universidad de Zaragoza. C/Pedro Cerbuna 12, 50009 Zaragoza, Spain.
| | - Santiago Uriel
- Dpto. de Química Orgánica, Escuela de Ingeniería y Arquitectura, Universidad de Zaragoza, 50018 Zaragoza, Spain
| | - Raquel P Herrera
- Laboratorio de Organocatálisis Asimétrica. Dpto de Química Orgánica. Instituto de Síntesis Química y Catálisis Homogénea (ISQCH) CSIC-Universidad de Zaragoza. C/Pedro Cerbuna 12, 50009 Zaragoza, Spain.
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10
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Yi F, Fu C, Sun Q, Wei H, Yu G, Yi W. Direct intramolecular double cross-dehydrogentive-coupling (CDC) cyclization of N-(2-pyridyl)amidines under metal-free conditions. RSC Adv 2019; 9:42172-42182. [PMID: 35542831 PMCID: PMC9076575 DOI: 10.1039/c9ra09265j] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2019] [Accepted: 12/06/2019] [Indexed: 01/08/2023] Open
Abstract
A facile transition-metal-free protocol to form 2-iminoimidazo[1, 2-a]-pyridines bearing a -CHBr2 group and an aza-quaternary carbon center at the 3 position from N-(2-pyridyl)amidines substrates, in which the new heterocyclic skeletons constructed from amidines via radical reactions or nucleophilic substitution reactions are promoted only by CBr4 under mild conditions, is demonstrated. The reactions were realized by intramolecular CDC reaction involving C-N and C-C bond formation via the sequential C(sp3)-H bifunctionalization mode on the same carbon atom under mild conditions. Moreover, this work also provides an excellent and representative example for CBr4 as an efficient reagent to initiate radical reactions under initiator-free conditions or to give rise to nucleophilic substitution reactions only by base.
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Affiliation(s)
- Fengping Yi
- School of Perfume and Aroma Technology, Shanghai Institute of Technology Shanghai 201418 P. R. China
| | - Chao Fu
- School of Perfume and Aroma Technology, Shanghai Institute of Technology Shanghai 201418 P. R. China
| | - Qihui Sun
- School of Perfume and Aroma Technology, Shanghai Institute of Technology Shanghai 201418 P. R. China
| | - Huazhen Wei
- School of Perfume and Aroma Technology, Shanghai Institute of Technology Shanghai 201418 P. R. China
| | - Genfa Yu
- School of Perfume and Aroma Technology, Shanghai Institute of Technology Shanghai 201418 P. R. China
| | - Weiyin Yi
- School of Perfume and Aroma Technology, Shanghai Institute of Technology Shanghai 201418 P. R. China
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11
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Zhou Z, Yuan Y, Cao Y, Qiao J, Yao A, Zhao J, Zuo W, Chen W, Lei A. Synergy of Anodic Oxidation and Cathodic Reduction Leads to Electrochemical C—H Halogenation. CHINESE J CHEM 2019. [DOI: 10.1002/cjoc.201900091] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Zhilin Zhou
- National Research Center for Carbohydrate SynthesisJiangxi Normal University Nanchang Jiangxi 330022 China
| | - Yong Yuan
- College of Chemistry and Molecular Sciences, Institute for Advanced Studies (IAS)Wuhan University Wuhan Hubei 430072 China
| | - Yangmin Cao
- National Research Center for Carbohydrate SynthesisJiangxi Normal University Nanchang Jiangxi 330022 China
| | - Jin Qiao
- National Research Center for Carbohydrate SynthesisJiangxi Normal University Nanchang Jiangxi 330022 China
| | - Anjin Yao
- National Research Center for Carbohydrate SynthesisJiangxi Normal University Nanchang Jiangxi 330022 China
| | - Jing Zhao
- National Research Center for Carbohydrate SynthesisJiangxi Normal University Nanchang Jiangxi 330022 China
| | - Wanqing Zuo
- National Research Center for Carbohydrate SynthesisJiangxi Normal University Nanchang Jiangxi 330022 China
| | - Wenjie Chen
- National Research Center for Carbohydrate SynthesisJiangxi Normal University Nanchang Jiangxi 330022 China
| | - Aiwen Lei
- National Research Center for Carbohydrate SynthesisJiangxi Normal University Nanchang Jiangxi 330022 China
- College of Chemistry and Molecular Sciences, Institute for Advanced Studies (IAS)Wuhan University Wuhan Hubei 430072 China
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12
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Rossi R, Angelici G, Casotti G, Manzini C, Lessi M. Catalytic Synthesis of 1,2,4,5‐Tetrasubstituted 1
H
‐Imidazole Derivatives: State of the Art. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201801381] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Renzo Rossi
- Dipartimento di Chimica e Chimica IndustrialeUniversity of Pisa via G. Moruzzi 13 56124 Pisa Italy
| | - Gaetano Angelici
- Dipartimento di Chimica e Chimica IndustrialeUniversity of Pisa via G. Moruzzi 13 56124 Pisa Italy
| | - Gianluca Casotti
- Dipartimento di Chimica e Chimica IndustrialeUniversity of Pisa via G. Moruzzi 13 56124 Pisa Italy
| | - Chiara Manzini
- Dipartimento di Chimica e Chimica IndustrialeUniversity of Pisa via G. Moruzzi 13 56124 Pisa Italy
| | - Marco Lessi
- Dipartimento di Chimica e Chimica IndustrialeUniversity of Pisa via G. Moruzzi 13 56124 Pisa Italy
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13
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Wei XH, Li ZH, Zhao LB, Zhang P, Zhou HC, Wang YB. Palladium-catalyzed oxidative cross-coupling for the synthesis of α-amino ketones. RSC Adv 2019; 9:32081-32084. [PMID: 35530775 PMCID: PMC9072988 DOI: 10.1039/c9ra06108h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2019] [Accepted: 09/18/2019] [Indexed: 11/24/2022] Open
Abstract
A novel oxidative cross-coupling reaction for the synthesis of α-aryl α-amino ketones in the presence of palladium catalysts using T+BF4− as an oxidant has been developed. This transformation was achieved by direct C–H oxidation of α-aminocarbonyl compounds and arylation. The mild reaction has a broad reaction scope and gives desired α-aryl α-amino ketones in moderate to excellent yields. A novel oxidative cross-coupling reaction for the synthesis of α-aryl α-amino ketones in the presence of palladium catalysts using T+BF4− as an oxidant has been developed.![]()
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Affiliation(s)
- Xiao-Hong Wei
- Key Laboratory for Utility of Environment-Friendly Composite Materials and Biomass in University of Gansu Province
- College of Chemical Engineering
- Northwest Minzu University
- Lanzhou 730030
- P. R. China
| | - Zhen-Hua Li
- Key Laboratory for Utility of Environment-Friendly Composite Materials and Biomass in University of Gansu Province
- College of Chemical Engineering
- Northwest Minzu University
- Lanzhou 730030
- P. R. China
| | - Lian-Biao Zhao
- Key Laboratory for Utility of Environment-Friendly Composite Materials and Biomass in University of Gansu Province
- College of Chemical Engineering
- Northwest Minzu University
- Lanzhou 730030
- P. R. China
| | - Ping Zhang
- Key Laboratory for Utility of Environment-Friendly Composite Materials and Biomass in University of Gansu Province
- College of Chemical Engineering
- Northwest Minzu University
- Lanzhou 730030
- P. R. China
| | - Han-Cheng Zhou
- Key Laboratory for Utility of Environment-Friendly Composite Materials and Biomass in University of Gansu Province
- College of Chemical Engineering
- Northwest Minzu University
- Lanzhou 730030
- P. R. China
| | - Yan-Bin Wang
- Key Laboratory for Utility of Environment-Friendly Composite Materials and Biomass in University of Gansu Province
- College of Chemical Engineering
- Northwest Minzu University
- Lanzhou 730030
- P. R. China
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14
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Zhang Z, Tu YQ, Zhang XM, Zhang FM, Wang SH. Copper-catalyzed highly diastereoselective cross-dehydrogenative coupling between 8-hydroxyisochromanes and 1,3-dicarbonyl compounds. Org Chem Front 2019. [DOI: 10.1039/c9qo00353c] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
A novel copper-catalyzed highly diastereoselective cross-dehydrogenative coupling reaction for the access of tricyclic chromanes from 8-hydroxyisochromanes and 1,3-dicarbonyl compounds.
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Affiliation(s)
- Zhen Zhang
- State Key Laboratory of Applied Organic Chemistry
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- P. R. China
| | - Yong-Qiang Tu
- State Key Laboratory of Applied Organic Chemistry
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- P. R. China
| | - Xiao-Ming Zhang
- State Key Laboratory of Applied Organic Chemistry
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- P. R. China
| | - Fu-Min Zhang
- State Key Laboratory of Applied Organic Chemistry
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- P. R. China
| | - Shao-Hua Wang
- School of Pharmacy
- Lanzhou University
- Lanzhou 730000
- P. R. China
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15
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Kazi I, Sekar G. An efficient synthesis of benzothiazole using tetrabromomethane as a halogen bond donor catalyst. Org Biomol Chem 2019; 17:9743-9756. [DOI: 10.1039/c9ob02125f] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
A CBr4 catalyzed simple, mild, and efficient protocol has been developed for the synthesis of 2-substituted benzothiazole from 2-aminothiophenols and N-methylthioamides under solvent free conditions.
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Affiliation(s)
- Imran Kazi
- Department of Chemistry
- Indian Institute of Technology Madras
- Chennai
- India
| | - Govindasamy Sekar
- Department of Chemistry
- Indian Institute of Technology Madras
- Chennai
- India
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16
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Huang S, Niu P, Su Y, Hu D, Huo C. Tandem radical cyclization of N-methacryloyl benzamides with CBr 4 to construct brominated isoquinolinediones. Org Biomol Chem 2018; 16:7748-7752. [PMID: 30298897 DOI: 10.1039/c8ob01964a] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A simple cumene (isopropylbenzene, IPB) promoted auto-oxidation involved tandem radical cyclization of N-methacryloyl benzamides using stable and easy-to-handle CBr4 as the bromine source is described. This strategy provides an efficient and practical approach for the synthesis of bromine containing isoquinolinediones. This method also presents a new way to generate bromine radicals using a mild auto-oxidation pathway.
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Affiliation(s)
- Songhai Huang
- Key Laboratory of Eco-Environment-Related Polymer Materials Ministry of Education, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou, Gansu 730070, China.
| | - Pengfei Niu
- Key Laboratory of Eco-Environment-Related Polymer Materials Ministry of Education, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou, Gansu 730070, China.
| | - Yingpeng Su
- Key Laboratory of Eco-Environment-Related Polymer Materials Ministry of Education, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou, Gansu 730070, China.
| | - Dongcheng Hu
- Key Laboratory of Eco-Environment-Related Polymer Materials Ministry of Education, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou, Gansu 730070, China.
| | - Congde Huo
- Key Laboratory of Eco-Environment-Related Polymer Materials Ministry of Education, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou, Gansu 730070, China.
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17
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Bergamaschi G, Lascialfari L, Pizzi A, Martinez Espinoza MI, Demitri N, Milani A, Gori A, Metrangolo P. A halogen bond-donor amino acid for organocatalysis in water. Chem Commun (Camb) 2018; 54:10718-10721. [PMID: 30187039 DOI: 10.1039/c8cc06010j] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Herein we report a halogen bond-donor amino acid, 4-iodotetrafluorophenylalanine, which behaves as a catalyst for the aqueous synthesis of bis-(heterocyclic)methanes. We also provide experimental evidence that halogen bonding is a plausible explanation for the observed catalytic effect.
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Affiliation(s)
- Greta Bergamaschi
- Department of Chemistry, Materials, and Chemical Engineering "Giulio Natta", Politecnico di Milano, Via L. Mancinelli 7, 20131 Milan, Italy.
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18
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Metal‐Free Halogen(I) Catalysts for the Oxidation of Aryl(heteroaryl)methanes to Ketones or Esters: Selectivity Control by Halogen Bonding. Chemistry 2018; 24:14171-14182. [DOI: 10.1002/chem.201801717] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2018] [Indexed: 12/17/2022]
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19
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Sarkar R, Mukhopadhyay C. Cu catalyzed cross-dehydrogenative coupling reaction for the synthesis of 3-hydroxy-2-pyrrolidinones. Tetrahedron Lett 2018. [DOI: 10.1016/j.tetlet.2018.06.061] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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20
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Dong J, Xia Q, Yan C, Song H, Liu Y, Wang Q. C(sp3)–H Azidation Reaction: A Protocol for Preparation of Aminals. J Org Chem 2018; 83:4516-4524. [DOI: 10.1021/acs.joc.8b00235] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- Jianyang Dong
- State Key Laboratory of Elemento-Organic Chemistry, Research Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, People’s Republic of China
| | - Qing Xia
- State Key Laboratory of Elemento-Organic Chemistry, Research Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, People’s Republic of China
| | - Changcun Yan
- State Key Laboratory of Elemento-Organic Chemistry, Research Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, People’s Republic of China
| | - Hongjian Song
- State Key Laboratory of Elemento-Organic Chemistry, Research Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, People’s Republic of China
| | - Yuxiu Liu
- State Key Laboratory of Elemento-Organic Chemistry, Research Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, People’s Republic of China
| | - Qingmin Wang
- State Key Laboratory of Elemento-Organic Chemistry, Research Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, People’s Republic of China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300071, People’s Republic of China
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21
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Liu X, Pu J, Luo X, Cui X, Wu Z, Huang G. CBr4-mediated cross-coupling reactions of α-amino carbonyl compounds with alcohols and thiols to build C–O and C–S bonds, respectively. Org Chem Front 2018. [DOI: 10.1039/c7qo00830a] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The direct C(sp3)–H bond functionalization of α-amino carbonyl compounds with CBr4 to construct C–O and C–S bonds.
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Affiliation(s)
- Xingxing Liu
- State Key Laboratory of Applied Organic Chemistry
- Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province
- Department of Chemistry
- Lanzhou University
- Lanzhou 730000
| | - Jinghong Pu
- State Key Laboratory of Applied Organic Chemistry
- Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province
- Department of Chemistry
- Lanzhou University
- Lanzhou 730000
| | - Xinliang Luo
- State Key Laboratory of Applied Organic Chemistry
- Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province
- Department of Chemistry
- Lanzhou University
- Lanzhou 730000
| | - Xinfeng Cui
- State Key Laboratory of Applied Organic Chemistry
- Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province
- Department of Chemistry
- Lanzhou University
- Lanzhou 730000
| | - Zhaoyang Wu
- The Environmental Protection Agency of Rudong Coastal Economic Development Zone
- Nantong 226400
- China
| | - Guosheng Huang
- State Key Laboratory of Applied Organic Chemistry
- Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province
- Department of Chemistry
- Lanzhou University
- Lanzhou 730000
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22
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Albano G, Aronica LA. Potentiality and Synthesis of O- and N-Heterocycles: Pd-Catalyzed Cyclocarbonylative Sonogashira Coupling as a Valuable Route to Phthalans, Isochromans, and Isoindolines. European J Org Chem 2017. [DOI: 10.1002/ejoc.201701041] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Gianluigi Albano
- Dipartimento di Chimica e Chimica Industriale; University of Pisa; Via G. Moruzzi 13 56124 Pisa Italy
| | - Laura Antonella Aronica
- Dipartimento di Chimica e Chimica Industriale; University of Pisa; Via G. Moruzzi 13 56124 Pisa Italy
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23
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Guha S, Kazi I, Nandy A, Sekar G. Role of Lewis-Base-Coordinated Halogen(I) Intermediates in Organic Synthesis: The Journey from Unstable Intermediates to Versatile Reagents. European J Org Chem 2017. [DOI: 10.1002/ejoc.201700916] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Somraj Guha
- Department of Chemistry; Indian Institute of Technology; 600036 Madras Chennai India
| | - Imran Kazi
- Department of Chemistry; Indian Institute of Technology; 600036 Madras Chennai India
| | - Anuradha Nandy
- Department of Chemistry; Indian Institute of Technology; 600036 Madras Chennai India
| | - Govindasamy Sekar
- Department of Chemistry; Indian Institute of Technology; 600036 Madras Chennai India
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24
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Kazi I, Guha S, Sekar G. CBr4 as a Halogen Bond Donor Catalyst for the Selective Activation of Benzaldehydes to Synthesize α,β-Unsaturated Ketones. Org Lett 2017; 19:1244-1247. [DOI: 10.1021/acs.orglett.7b00348] [Citation(s) in RCA: 57] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Imran Kazi
- Department of Chemistry, Indian Institute of Technology Madras, Chennai, 600036, India
| | - Somraj Guha
- Department of Chemistry, Indian Institute of Technology Madras, Chennai, 600036, India
| | - Govindasamy Sekar
- Department of Chemistry, Indian Institute of Technology Madras, Chennai, 600036, India
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25
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Affiliation(s)
- Yan Qin
- Key
Laboratory for Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Lihui Zhu
- Key
Laboratory for Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Sanzhong Luo
- Key
Laboratory for Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
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26
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Tang J, Zhao S, Wei Y, Quan Z, Huo C. CBr 4 promoted intramolecular aerobic oxidative dehydrogenative arylation of aldehydes: application in the synthesis of xanthones and fluorenones. Org Biomol Chem 2017; 15:1589-1592. [PMID: 28134379 DOI: 10.1039/c7ob00080d] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A simple and practical carbon tetrabromide promoted intramolecular aerobic oxidative dehydrogenative coupling reaction has been developed to provide a straightforward ring closure protocol for 2-aryloxybenzaldehydes to furnish xanthones. The reaction was performed under metal-, additive- and solvent-free conditions with good tolerance of functional groups. The present method is also applicable to the synthesis of fluorenones by using 2-arylbenzaldehydes as substrates. Preliminary studies of the reaction mechanism indicated that the reaction may proceed through a radical pathway.
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Affiliation(s)
- Jing Tang
- College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou, Gansu 730070, China.
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27
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Hu M, Li M, Tan FL, Song RJ, Xie YX, Li JH. Oxidative Divergent Bicyclizations of 1,n-Enynes through α-C(sp3)-H Functionalization of Alkyl Nitriles. Adv Synth Catal 2017. [DOI: 10.1002/adsc.201600926] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Ming Hu
- State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University, Changsha 410082, China, and Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle; Nanchang Hangkong University; Nanchang 330063 People's Republic of China
| | - Meng Li
- State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University, Changsha 410082, China, and Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle; Nanchang Hangkong University; Nanchang 330063 People's Republic of China
| | - Fang-Lin Tan
- State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University, Changsha 410082, China, and Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle; Nanchang Hangkong University; Nanchang 330063 People's Republic of China
| | - Ren-Jie Song
- State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University, Changsha 410082, China, and Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle; Nanchang Hangkong University; Nanchang 330063 People's Republic of China
| | - Ye-Xiang Xie
- State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University, Changsha 410082, China, and Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle; Nanchang Hangkong University; Nanchang 330063 People's Republic of China
| | - Jin-Heng Li
- State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University, Changsha 410082, China, and Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle; Nanchang Hangkong University; Nanchang 330063 People's Republic of China
- State Key Laboratory of Applied Organic Chemistry Lanzhou University; Lanzhou 730000 People's Republic of China
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28
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Wei XH, Zhao LB, Zhou HC. Oxidative cross-coupling reaction by scandium catalysis for synthesis of α-alkyl α-amino acid ester derivatives. RSC Adv 2017. [DOI: 10.1039/c7ra00664k] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
A novel oxidative cross-coupling reaction between N-arylglycine esters and alkyl boronic acid esters was developed by scandium catalysis.
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Affiliation(s)
- Xiao-Hong Wei
- Key Laboratory for Utility of Environment-Friendly Composite Materials and Biomass in University of Gansu Province
- College of Chemical Engineering
- Northwest University for Nationalities
- Lanzhou 730030
- P. R. China
| | - Lian-Biao Zhao
- Key Laboratory for Utility of Environment-Friendly Composite Materials and Biomass in University of Gansu Province
- College of Chemical Engineering
- Northwest University for Nationalities
- Lanzhou 730030
- P. R. China
| | - Han-Cheng Zhou
- Key Laboratory for Utility of Environment-Friendly Composite Materials and Biomass in University of Gansu Province
- College of Chemical Engineering
- Northwest University for Nationalities
- Lanzhou 730030
- P. R. China
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29
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Chen F, Wang Y, Zhao S, Jiang W, Huo C. Tandem radical cyclization to construct poly-brominated 2-oxindoles. Org Biomol Chem 2017; 15:7710-7714. [DOI: 10.1039/c7ob01859b] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
A metal-free aerobic way to construct tribromomethylated poly-brominated 2-oxindoles from reaction of N-arylacrylamides with CBr4via a tandem radical cyclization process was discovered. The formation of the 1,1-dibromoolefin derivatives was also realized at higher temperature.
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Affiliation(s)
- Fengjuan Chen
- College of Chemistry and Chemical Engineering
- Northwest Normal University
- Lanzhou
- China
| | - Yajun Wang
- College of Chemistry and Chemical Engineering
- Northwest Normal University
- Lanzhou
- China
| | - Shijun Zhao
- College of Foreign Languages
- Lanzhou University of Technology
- Lanzhou
- China
| | - Wei Jiang
- College of Chemistry and Chemical Engineering
- Northwest Normal University
- Lanzhou
- China
| | - Congde Huo
- College of Chemistry and Chemical Engineering
- Northwest Normal University
- Lanzhou
- China
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30
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Gini A, Brandhofer T, Mancheño OG. Recent progress in mild Csp3–H bond dehydrogenative or (mono-) oxidative functionalization. Org Biomol Chem 2017; 15:1294-1312. [DOI: 10.1039/c6ob02474b] [Citation(s) in RCA: 59] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
This review summarizes recent advances in mild and green dehydrogenative and mono-oxidative Csp3–H bond functionalization reactions, considering both new approaches and the re-elaboration of known methodologies.
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Affiliation(s)
- Andrea Gini
- Institute for Organic Chemistry
- University of Regensburg
- 93053 Regensburg
- Germany
- Straubing Center of Science for Renewable Resources
| | - Tobias Brandhofer
- Institute for Organic Chemistry
- University of Regensburg
- 93053 Regensburg
- Germany
- Straubing Center of Science for Renewable Resources
| | - Olga García Mancheño
- Institute for Organic Chemistry
- University of Regensburg
- 93053 Regensburg
- Germany
- Straubing Center of Science for Renewable Resources
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31
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Zhou X, Ma H, Shi C, Zhang Y, Liu X, Huang G. Facile Synthesis of Polysubstituted Imidazoles through CBr4-Mediated Tandem Cyclization of Amidines with 1,3-Dicarbonyl Compounds or Ketones. European J Org Chem 2016. [DOI: 10.1002/ejoc.201601428] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Xiaoqiang Zhou
- State Key Laboratory of Applied Organic Chemistry; Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province; Department of Chemistry; Lanzhou University; 730000 Lanzhou China
| | - Haojie Ma
- State Key Laboratory of Applied Organic Chemistry; Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province; Department of Chemistry; Lanzhou University; 730000 Lanzhou China
| | - Chong Shi
- State Key Laboratory of Applied Organic Chemistry; Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province; Department of Chemistry; Lanzhou University; 730000 Lanzhou China
| | - Yixin Zhang
- State Key Laboratory of Applied Organic Chemistry; Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province; Department of Chemistry; Lanzhou University; 730000 Lanzhou China
| | - XingXing Liu
- State Key Laboratory of Applied Organic Chemistry; Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province; Department of Chemistry; Lanzhou University; 730000 Lanzhou China
| | - Guosheng Huang
- State Key Laboratory of Applied Organic Chemistry; Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province; Department of Chemistry; Lanzhou University; 730000 Lanzhou China
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32
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Feng L, Yan H, Yang C, Chen D, Xia W. Visible-Light Induced Direct Synthesis of Polysubstituted Furans from Cyclopropyl Ketones. J Org Chem 2016; 81:7008-22. [PMID: 27167091 DOI: 10.1021/acs.joc.6b00436] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
In this article, a photoredox protocol for the synthesis of furans via oxidative coupling of olefin generated in situ from cyclopropyl ketones with ketonic oxygen atom is presented. Moreover, bromination of furans in the presence of overstoichiometric oxidant has been achieved with high regioselectivity.
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Affiliation(s)
- Liyan Feng
- State Key Lab of Urban Water Resource and Environment, Shenzhen Graduate School, Harbin Institute of Technology , Harbin 150080 China
| | - Hang Yan
- State Key Lab of Urban Water Resource and Environment, Shenzhen Graduate School, Harbin Institute of Technology , Harbin 150080 China
| | - Chao Yang
- State Key Lab of Urban Water Resource and Environment, Shenzhen Graduate School, Harbin Institute of Technology , Harbin 150080 China
| | - Dafa Chen
- State Key Lab of Urban Water Resource and Environment, Shenzhen Graduate School, Harbin Institute of Technology , Harbin 150080 China
| | - Wujiong Xia
- State Key Lab of Urban Water Resource and Environment, Shenzhen Graduate School, Harbin Institute of Technology , Harbin 150080 China
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33
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Huo C, Tang J, Xie H, Wang Y, Dong J. CBr4 Mediated Oxidative C–N Bond Formation: Applied in the Synthesis of Imidazo[1,2-α]pyridines and Imidazo[1,2-α]pyrimidines. Org Lett 2016; 18:1016-9. [DOI: 10.1021/acs.orglett.6b00137] [Citation(s) in RCA: 70] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Congde Huo
- Key Laboratory
of Eco-Environment-Related
Polymer Materials Ministry of Education, College of Chemistry and
Chemical Engineering, Northwest Normal University, Lanzhou, Gansu 730070, China
| | - Jing Tang
- Key Laboratory
of Eco-Environment-Related
Polymer Materials Ministry of Education, College of Chemistry and
Chemical Engineering, Northwest Normal University, Lanzhou, Gansu 730070, China
| | - Haisheng Xie
- Key Laboratory
of Eco-Environment-Related
Polymer Materials Ministry of Education, College of Chemistry and
Chemical Engineering, Northwest Normal University, Lanzhou, Gansu 730070, China
| | - Yajun Wang
- Key Laboratory
of Eco-Environment-Related
Polymer Materials Ministry of Education, College of Chemistry and
Chemical Engineering, Northwest Normal University, Lanzhou, Gansu 730070, China
| | - Jie Dong
- Key Laboratory
of Eco-Environment-Related
Polymer Materials Ministry of Education, College of Chemistry and
Chemical Engineering, Northwest Normal University, Lanzhou, Gansu 730070, China
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34
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Xie Z, Jia J, Liu X, Liu L. Copper(II) Triflate-Catalyzed Aerobic Oxidative CH Functionalization of Glycine Derivatives with Olefins and Organoboranes. Adv Synth Catal 2016. [DOI: 10.1002/adsc.201501015] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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35
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Double-Oxidative Dehydrogenative (DOD) Cyclization of Glycine Derivatives with Dioxane under Metal-Free Aerobic Conditions. Adv Synth Catal 2016. [DOI: 10.1002/adsc.201500893] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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36
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Saikia AK, Sultana S, Devi NR, Deka MJ, Tiwari K, Dubey VK. Diastereoselective synthesis of substituted hexahydrobenzo[de]isochromanes and evaluation of their antileishmanial activity. Org Biomol Chem 2016; 14:970-9. [PMID: 26625982 DOI: 10.1039/c5ob02038g] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Hexahydrobenzo[de]isochromanes and hexahydropyrano[3,4,5-ij]isoquinolines can be efficiently synthesized via Friedel Crafts and oxa Pictet-Spengler reaction of acrylyl enol ethers mediated by triflic acid in good yields. The reaction is highly stereoselective. Two of the hexahydrobenzo[de]isochromanes are found to have moderate antileishmanial activity.
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Affiliation(s)
- Anil K Saikia
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati 781039, Assam, India.
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37
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Xie J, Zhu C. Recent Advances in Non-directed C(sp3)–H Bond Functionalization. SPRINGERBRIEFS IN MOLECULAR SCIENCE 2016. [DOI: 10.1007/978-3-662-49496-7_2] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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38
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Sarkar R, Mukhopadhyay C. Cross-dehydrogenative regioselective Csp3–Csp2coupling of enamino-ketones followed by rearrangement: an amazing formation route to acridine-1,8-dione derivatives. Org Biomol Chem 2016; 14:2706-15. [DOI: 10.1039/c5ob02655e] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A novel route for the construction of acridine-1,8-dione derivatives through CDC coupling of enamino-ketones followed by rearrangement.
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Affiliation(s)
- Rajib Sarkar
- Department of Chemistry
- University of Calcutta
- Kolkata-700009
- India
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39
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Huo C, Chen F, Yuan Y, Xie H, Wang Y. Iron Catalyzed Dual-Oxidative Dehydrogenative (DOD) Tandem Annulation of Glycine Derivatives with Tetrahydrofurans. Org Lett 2015; 17:5028-31. [DOI: 10.1021/acs.orglett.5b02504] [Citation(s) in RCA: 57] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Congde Huo
- Key Laboratory
of Eco-Environment-Related
Polymer Materials Ministry of Education; College of Chemistry and
Chemical Engineering, Northwest Normal University, Lanzhou, Gansu 730070, China
| | - Fengjuan Chen
- Key Laboratory
of Eco-Environment-Related
Polymer Materials Ministry of Education; College of Chemistry and
Chemical Engineering, Northwest Normal University, Lanzhou, Gansu 730070, China
| | - Yong Yuan
- Key Laboratory
of Eco-Environment-Related
Polymer Materials Ministry of Education; College of Chemistry and
Chemical Engineering, Northwest Normal University, Lanzhou, Gansu 730070, China
| | - Haisheng Xie
- Key Laboratory
of Eco-Environment-Related
Polymer Materials Ministry of Education; College of Chemistry and
Chemical Engineering, Northwest Normal University, Lanzhou, Gansu 730070, China
| | - Yajun Wang
- Key Laboratory
of Eco-Environment-Related
Polymer Materials Ministry of Education; College of Chemistry and
Chemical Engineering, Northwest Normal University, Lanzhou, Gansu 730070, China
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40
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Huo C, Yuan Y, Chen F, Tang J, Wang Y. Copper-Catalyzed Aerobic Oxidative Dehydrogenative Formal [2 + 3] Cyclization of Glycine Esters with α-Angelicalactone: Approach To Construct Polysubstituted Pyrrolidones. Org Lett 2015; 17:4208-11. [DOI: 10.1021/acs.orglett.5b01985] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Congde Huo
- Key Laboratory
of Eco-Environment-Related
Polymer Materials Ministry of Education, College of Chemistry and
Chemical Engineering, Northwest Normal University, Lanzhou, Gansu 730070, China
| | - Yong Yuan
- Key Laboratory
of Eco-Environment-Related
Polymer Materials Ministry of Education, College of Chemistry and
Chemical Engineering, Northwest Normal University, Lanzhou, Gansu 730070, China
| | - Fengjuan Chen
- Key Laboratory
of Eco-Environment-Related
Polymer Materials Ministry of Education, College of Chemistry and
Chemical Engineering, Northwest Normal University, Lanzhou, Gansu 730070, China
| | - Jing Tang
- Key Laboratory
of Eco-Environment-Related
Polymer Materials Ministry of Education, College of Chemistry and
Chemical Engineering, Northwest Normal University, Lanzhou, Gansu 730070, China
| | - Yajun Wang
- Key Laboratory
of Eco-Environment-Related
Polymer Materials Ministry of Education, College of Chemistry and
Chemical Engineering, Northwest Normal University, Lanzhou, Gansu 730070, China
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Narayan R, Matcha K, Antonchick AP. Metal-Free Oxidative C-C Bond Formation through C-H Bond Functionalization. Chemistry 2015; 21:14678-93. [PMID: 26239615 DOI: 10.1002/chem.201502005] [Citation(s) in RCA: 134] [Impact Index Per Article: 14.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
The formation of C-C bonds embodies the core of organic chemistry because of its fundamental application in generation of molecular diversity and complexity. C-C bond-forming reactions are well-known challenges. To achieve this goal through direct functionalization of C-H bonds in both of the coupling partners represents the state-of-the-art in organic synthesis. Oxidative C-C bond formation obviates the need for prefunctionalization of both substrates. This Minireview is dedicated to the field of C-C bond-forming reactions through direct C-H bond functionalization under completely metal-free oxidative conditions. Selected important developments in this area have been summarized with representative examples and discussions on their reaction mechanisms.
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Affiliation(s)
- Rishikesh Narayan
- Abteilung Chemische Biologie, Max-Planck-Institut für Molekulare Physiologie, Otto-Hahn Strasse 11, 44227 Dortmund (Germany)
| | - Kiran Matcha
- Abteilung Chemische Biologie, Max-Planck-Institut für Molekulare Physiologie, Otto-Hahn Strasse 11, 44227 Dortmund (Germany).,Present Address: API Small Molecule Process Research and Development, Janssen Pharmaceutica NV, Turnhotsweg 30, 2340 Beerse (Belgium)
| | - Andrey P Antonchick
- Abteilung Chemische Biologie, Max-Planck-Institut für Molekulare Physiologie, Otto-Hahn Strasse 11, 44227 Dortmund (Germany). .,Fakultät Chemie und Chemische Biologie, Technische Universität Dortmund, Otto-Hahn Strasse 6, 44221 Dortmund (Germany).
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Kong S, Zhang L, Dai X, Tao L, Xie C, Shi L, Wang M. DDQ-mediated Direct C(sp3)H Cyanation of Benzyl Ethers and 1,3-Diarylpropenes under Solvent- and Metal-free Conditions. Adv Synth Catal 2015. [DOI: 10.1002/adsc.201500096] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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