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Wei J, Pham T, Attah EI, Liu M, Yaroshuk T, Chen H, Wojtas L, Shi X. Gold-Catalyzed Diyne-Ene Annulation for the Synthesis of Polysubstituted Benzenes through Formal [3+3] Approach with Amide as the Critical Co-Catalyst. Angew Chem Int Ed Engl 2024; 63:e202407360. [PMID: 38973064 DOI: 10.1002/anie.202407360] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2024] [Revised: 06/05/2024] [Accepted: 07/04/2024] [Indexed: 07/09/2024]
Abstract
The one-step synthesis of tetra-substituted benzenes was accomplished via gold-catalyzed diyne-ene annulation. Distinguished from prior modification methods, this novel strategy undergoes formal [3+3] cyclization, producing polysubstituted benzenes with exceptional efficiency. The critical factor enabling this transformation was the introduction of amides, which were reported for the first time in gold catalysis as covalent nucleophilic co-catalysts. This interesting protocol not only offers a new strategy to achieve functional benzenes with high efficiency, but also enlightens potential new reaction pathways within gold-catalyzed alkyne activation processes.
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Affiliation(s)
- Jingwen Wei
- Department of Chemistry and Biochemistry, University of Maryland, College Park, Maryland, 20742, USA
| | - Thong Pham
- Department of Chemistry and Biochemistry, University of Maryland, College Park, Maryland, 20742, USA
| | - Emmanuel Ifeanyi Attah
- Department of Chemistry and Biochemistry, University of Maryland, College Park, Maryland, 20742, USA
| | - Mengjia Liu
- Department of Chemistry and Biochemistry, University of Maryland, College Park, Maryland, 20742, USA
| | - Timothy Yaroshuk
- Department of Chemistry and Environmental Science, New Jersey Institute of Technology, Newark, New Jersey, 07102, USA
| | - Hao Chen
- Department of Chemistry and Environmental Science, New Jersey Institute of Technology, Newark, New Jersey, 07102, USA
| | - Lukasz Wojtas
- Department of Chemistry, University of South Florida, Tampa, Florida, 33620, USA
| | - Xiaodong Shi
- Department of Chemistry and Biochemistry, University of Maryland, College Park, Maryland, 20742, USA
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2
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Zhu W, Tang N, Zhou W, Li C, Ou Y, Abdukader A, Qiu R. Base-Promoted Annulated Aromatization of Aryl Acetylenes with Dimethyl Sulfoxide to Access Symmetrical/Unsymmetric m-Terphenyl. J Org Chem 2024; 89:10572-10581. [PMID: 39038277 DOI: 10.1021/acs.joc.4c00790] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/24/2024]
Abstract
A protocol for selective and efficient synthesis of symmetrical and unsymmetrical m-terphenyls is presented among aryl acetylene and DMSO in the presence of KOH and methanol. In this reaction, two molecules of aryl acetylene contribute four carbons, and DMSO, as a dual carbon donor, provides two carbons to a new aromatic ring. This protocol can be tolerated for the electron-donating or disubstituted phenylacetylenes as well as the heterocyclic acetylene derivatives.
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Affiliation(s)
- Wenli Zhu
- State Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources, School of Chemistry, Xinjiang University, Urumqi 830017, China
- State Key Laboratory of Chemo/Biosensing and Chemometrics, Advanced Catalytic Engineering Research Center of the Ministry of Education, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, P. R. China
| | - Niu Tang
- State Key Laboratory of Chemo/Biosensing and Chemometrics, Advanced Catalytic Engineering Research Center of the Ministry of Education, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, P. R. China
| | - Wenjun Zhou
- State Key Laboratory of Chemo/Biosensing and Chemometrics, Advanced Catalytic Engineering Research Center of the Ministry of Education, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, P. R. China
| | - Chenghan Li
- State Key Laboratory of Chemo/Biosensing and Chemometrics, Advanced Catalytic Engineering Research Center of the Ministry of Education, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, P. R. China
| | - Yifeng Ou
- State Key Laboratory of Chemo/Biosensing and Chemometrics, Advanced Catalytic Engineering Research Center of the Ministry of Education, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, P. R. China
| | - Ablimit Abdukader
- State Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources, School of Chemistry, Xinjiang University, Urumqi 830017, China
| | - Renhua Qiu
- State Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources, School of Chemistry, Xinjiang University, Urumqi 830017, China
- State Key Laboratory of Chemo/Biosensing and Chemometrics, Advanced Catalytic Engineering Research Center of the Ministry of Education, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, P. R. China
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3
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Ma KX, Hong CM, Yan JM, Li QH, Liu TL. Synthesis of 1,2,4,5-tetra-substituted benzenes via copper-catalyzed dimerization of γ,δ-unsaturated ketones. Chem Commun (Camb) 2024; 60:7753-7756. [PMID: 38973629 DOI: 10.1039/d4cc02458c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/09/2024]
Abstract
An efficient cyclization for the synthesis of 1,2,4,5-tetra-substituted benzenes via copper catalyzed dimerization of γ,δ-unsaturated ketones has been described. This one-pot procedure employs the γ,δ-unsaturated ketones as the sole substrate with multiple C-C bond formation. This protocol features broad substrate scope and provides a facile and robust method to construct polysubstituted benzene derivatives under mild conditions.
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Affiliation(s)
- Kai-Xian Ma
- Chongqing Key Laboratory of Soft-Matter Materials Manufacturing, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China.
| | - Chuan-Ming Hong
- Chongqing Key Laboratory of Soft-Matter Materials Manufacturing, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China.
| | - Jiang-Min Yan
- Chongqing Key Laboratory of Soft-Matter Materials Manufacturing, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China.
| | - Qing-Hua Li
- Chongqing Key Laboratory of Soft-Matter Materials Manufacturing, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China.
| | - Tang-Lin Liu
- Chongqing Key Laboratory of Soft-Matter Materials Manufacturing, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China.
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4
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Yang W, Li G, Huang Z, Wang C, Li H, Zhou Z, Mei S, Deng LM. Synthesis of Pyridin-2(1 H)-imines via the Transformation of Conjugated Ynones. J Org Chem 2024; 89:9139-9143. [PMID: 38861494 DOI: 10.1021/acs.joc.4c01071] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/13/2024]
Abstract
Conjugated ynones represent an important class of reactive species, useful synthetic intermediates, and synthons. However, the reactivity and synthetic applications of ynones are usually focused on the transformation of mono- or dual-functional groups. Herein, we developed a straightforward synthesis of pyridin-2(1H)-imines from the transformation of conjugated ynones. This cascade process probably began with a Michael addition of ynones and 2-aminopyridines, further underwent an intramolecular cyclization to generate the N,O-bidentate intermediates, and finally reacted with sulfonyl azides giving the pyridin-2(1H)-imines with accompanying loss of diazo.
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Affiliation(s)
- Weiguang Yang
- School of Ocean and Tropical Medicine, Guangdong Medical University, Zhanjiang, Guangdong 524023, China
- Southern Marine Science and Engineering Guangdong Laboratory (Zhanjiang), Zhanjiang, Guangdong 524023, China
| | - Guanrong Li
- School of Ocean and Tropical Medicine, Guangdong Medical University, Zhanjiang, Guangdong 524023, China
| | - Zixin Huang
- School of Ocean and Tropical Medicine, Guangdong Medical University, Zhanjiang, Guangdong 524023, China
| | - Chen Wang
- Southern Marine Science and Engineering Guangdong Laboratory (Zhanjiang), Zhanjiang, Guangdong 524023, China
| | - Hang Li
- Southern Marine Science and Engineering Guangdong Laboratory (Zhanjiang), Zhanjiang, Guangdong 524023, China
| | - Zitong Zhou
- School of Ocean and Tropical Medicine, Guangdong Medical University, Zhanjiang, Guangdong 524023, China
| | - Shuangxi Mei
- Southern Marine Science and Engineering Guangdong Laboratory (Zhanjiang), Zhanjiang, Guangdong 524023, China
| | - Lu-Ming Deng
- School of Ocean and Tropical Medicine, Guangdong Medical University, Zhanjiang, Guangdong 524023, China
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5
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Wang JL, Wu GY, Luo JN, Liu JL, Zhuo CX. Catalytic Intermolecular Deoxygenative Coupling of Carbonyl Compounds with Alkynes by a Cp*Mo(II)-Catalyst. J Am Chem Soc 2024; 146:5605-5613. [PMID: 38351743 DOI: 10.1021/jacs.3c14195] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/29/2024]
Abstract
Carbonyl is highly accessible and acts as an essential functional group in chemical synthesis. However, the direct catalytic deoxygenative functionalization of carbonyl compounds via a putative metal carbene intermediate is a formidable challenge due to the requirement of a high activation energy for the cleavage of strong C═O double bonds. Here, we report a class of bench stable and readily available Cp*Mo(II)-complexes as efficient deoxygenation catalysts that could catalyze the direct intermolecular deoxygenative coupling of carbonyl compounds with alkynes. Enabled by this powerful Cp*Mo(II)-catalyst, various valuable heteroarenes (10 different classes) were obtained in generally good yields and remarkable chemo- and regioselectivities. Mechanistic studies suggested that this reaction might proceed via a sequence of C═O double bonds cleavage, carbene-alkyne metathesis, cyclization, and aromatization processes. This strategy not only provided a general catalytic platform for the rapid preparation of heteroarenes but also opened a new window for the applications of Cp*Mo(II)-catalysts in organic synthesis.
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Affiliation(s)
- Jia-Le Wang
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Key Laboratory of Chemical Biology of Fujian Province, and College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, P. R. China
| | - Guan-Yu Wu
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Key Laboratory of Chemical Biology of Fujian Province, and College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, P. R. China
| | - Jian-Nan Luo
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Key Laboratory of Chemical Biology of Fujian Province, and College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, P. R. China
| | - Jun-Long Liu
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Key Laboratory of Chemical Biology of Fujian Province, and College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, P. R. China
| | - Chun-Xiang Zhuo
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Key Laboratory of Chemical Biology of Fujian Province, and College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, P. R. China
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, P. R. China
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Liu Q, Chu H, Mai J, Yang H, Shen MH, Xu HD. Molybdenum-catalyzed deoxygenative heterocyclization of 2-nitroazobenzenes: a novel strategy for catalytic synthesis of 2-aryl-2 H-benzo[ d][1,2,3]triazoles. Org Biomol Chem 2024; 22:954-958. [PMID: 38205622 DOI: 10.1039/d3ob01969a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2024]
Abstract
A novel strategy for the catalytic synthesis of 2-aryl-2H-benzo[d][1,2,3]triazoles bearing a wide range of functional groups in good to excellent yields by non-noble molybdenum-catalyzed deoxygenative heterocyclization of 2-nitroazobenzenes is described. The salient features of the transformation include the use of readily available substrates, valuable products and ease of scale-up. The mechanistic study indicates that the reaction occurred via double deoxygenation by the Mo(VI)/Mo(IV) catalytic cycle from 2-nitroazobenzene, through the formation of 2-aryl-2H-benzo[d][1,2,3]triazole-N1-oxide or nitrene intermediates.
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Affiliation(s)
- Quanyun Liu
- School of Pharmacy, Changzhou University, Changzhou, Jiangsu Province 213164, China.
| | - Haoke Chu
- School of Pharmacy, Changzhou University, Changzhou, Jiangsu Province 213164, China.
| | - Junju Mai
- School of Pharmacy, Changzhou University, Changzhou, Jiangsu Province 213164, China.
| | - Haobing Yang
- School of Pharmacy, Changzhou University, Changzhou, Jiangsu Province 213164, China.
| | - Mei-Hua Shen
- School of Pharmacy, Changzhou University, Changzhou, Jiangsu Province 213164, China.
| | - Hua-Dong Xu
- School of Pharmacy, Changzhou University, Changzhou, Jiangsu Province 213164, China.
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Wang RH, Zhang Z, Li B, Zhu GF, Shi J, Tang L. p-Cresol-Enabled Nickel-Catalyzed Intermolecular Redox-Economical Coupling of Allyl Alcohols with Alkynes through oxa-Nickelacycle. Org Lett 2023; 25:8463-8468. [PMID: 37982592 DOI: 10.1021/acs.orglett.3c03320] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2023]
Abstract
An intermolecular redox-economical coupling reaction of allyl alcohols with alkynes, catalyzed by Ni-Brønsted acid cocatalysis, has been developed. This method allows for the synthesis of a diverse range of γ,δ-unsaturated ketones with yields ranging from 40% to 94%, while maintaining excellent compatibility with various functional groups. The transformation of the resulting product demonstrates the significant practical value of this method. Further mechanistic investigations have revealed that the reaction proceeds through the formation of an oxa-nickelacycle intermediate.
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Affiliation(s)
- Rong-Hua Wang
- School of Pharmacy, Guizhou Provincial Engineering Technology Research Center for Chemical Drug R&D, Guizhou Medical University, 550014 Guiyang, P. R. China
| | - Zhou Zhang
- School of Pharmacy, Guizhou Provincial Engineering Technology Research Center for Chemical Drug R&D, Guizhou Medical University, 550014 Guiyang, P. R. China
| | - Bo Li
- School of Pharmacy, Guizhou Provincial Engineering Technology Research Center for Chemical Drug R&D, Guizhou Medical University, 550014 Guiyang, P. R. China
| | - Gao-Feng Zhu
- School of Pharmacy, Guizhou Provincial Engineering Technology Research Center for Chemical Drug R&D, Guizhou Medical University, 550014 Guiyang, P. R. China
| | - Jing Shi
- School of Pharmacy, Guizhou Provincial Engineering Technology Research Center for Chemical Drug R&D, Guizhou Medical University, 550014 Guiyang, P. R. China
| | - Lei Tang
- School of Pharmacy, Guizhou Provincial Engineering Technology Research Center for Chemical Drug R&D, Guizhou Medical University, 550014 Guiyang, P. R. China
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