1
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Wu LS, Zhou T, Shi BF. Pd(II)-Catalyzed Desymmetrizing gem-Dimethyl C(sp 3)-H Alkenylation/Aza-Wacker Cyclization Directed by PIP Auxiliary. Org Lett 2024; 26:4457-4462. [PMID: 38775281 DOI: 10.1021/acs.orglett.4c01214] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/01/2024]
Abstract
Desymmetrization of gem-dimethyl groups has been developed as an efficient pathway to achieve asymmetric C(sp3)-H functionalization. Herein, we described a Pd(II)-catalyzed desymmetrizing gem-dimethyl C(sp3)-H alkenylation/aza-Wacker cyclization directed by a bidentate 2-pyridinylisopropyl auxiliary. Chiral α-methyl γ-lactams were obtained in good yields (up to 82%) and high enantioselectivities (up to 91.5% ee).
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Affiliation(s)
- Le-Song Wu
- Center of Chemistry for Frontier Technologies, Department of Chemistry, Zhejiang University, Hangzhou 310027, China
| | - Tao Zhou
- Center of Chemistry for Frontier Technologies, Department of Chemistry, Zhejiang University, Hangzhou 310027, China
- College of Material Chemistry and Chemical Engineering, Key Laboratory of Organosilicon Chemistry and Material Technology, Ministry of Education, Hangzhou Normal University, Hangzhou 311121, Zhejiang China
| | - Bing-Feng Shi
- Center of Chemistry for Frontier Technologies, Department of Chemistry, Zhejiang University, Hangzhou 310027, China
- College of Material Chemistry and Chemical Engineering, Key Laboratory of Organosilicon Chemistry and Material Technology, Ministry of Education, Hangzhou Normal University, Hangzhou 311121, Zhejiang China
- College of Biological, Chemical Science and Engineering, Jiaxing University, Jiaxing 314001, China
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2
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Xu B, Wang Q, Fang C, Zhang ZM, Zhang J. Recent advances in Pd-catalyzed asymmetric cyclization reactions. Chem Soc Rev 2024; 53:883-971. [PMID: 38108127 DOI: 10.1039/d3cs00489a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2023]
Abstract
Over the past few decades, there have been major developments in transition metal-catalyzed asymmetric cyclization reactions, enabling the convenient access to a wide spectrum of structurally diverse chiral carbo- and hetero-cycles, common skeletons found in fine chemicals, natural products, pharmaceuticals, agrochemicals, and materials. In particular, a plethora of enantioselective cyclization reactions have been promoted by chiral palladium catalysts owing to their outstanding features. This review aims to collect the latest advancements in enantioselective palladium-catalyzed cyclization reactions over the past eleven years, and it is organized into thirteen sections depending on the different types of transformations involved.
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Affiliation(s)
- Bing Xu
- Department of Chemistry, Fudan University, 2005 Songhu Road, Shanghai, 200438, P. R. China.
- Zhuhai Fudan Innovation Institute, Zhuhai 519000, China
| | - Quanpu Wang
- Department of Chemistry, Fudan University, 2005 Songhu Road, Shanghai, 200438, P. R. China.
| | - Chao Fang
- Department of Chemistry, Fudan University, 2005 Songhu Road, Shanghai, 200438, P. R. China.
| | - Zhan-Ming Zhang
- Department of Chemistry, Fudan University, 2005 Songhu Road, Shanghai, 200438, P. R. China.
- Fudan Zhangjiang Institute, Shanghai 201203, China
| | - Junliang Zhang
- Department of Chemistry, Fudan University, 2005 Songhu Road, Shanghai, 200438, P. R. China.
- Fudan Zhangjiang Institute, Shanghai 201203, China
- School of Chemisty and Chemical Engineering, Henan Normal University, Xinxiang, Henan, 453007, China
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3
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Huang Y, Lv X, Tong HR, He W, Bai Z, Wang H, He G, Chen G. Palladium-Catalyzed Enantioselective Directed C(sp 3)-H Functionalization Using C 5-Substituted 8-Aminoquinoline Auxiliaries. Org Lett 2024; 26:94-99. [PMID: 38149595 DOI: 10.1021/acs.orglett.3c03688] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2023]
Abstract
8-Aminoquinoline (AQ) has proven to be a highly effective bidentate directing group for palladium-catalyzed C-H functionalization reactions. However, enantiocontrol of AQ-directed C(sp3)-H functionalization reactions has been challenging. Herein, a new protocol is presented for the Pd-catalyzed enantioselective arylation of unactivated β C(sp3)-H bonds of alkyl carboxamides with aryl iodides using a C5-iodinated 8-aminoquinolines (IQ) auxiliary in conjugation with a BINOL ligand. Additionally, a C5-aryl substituted 8-aminoquinoline auxiliary can facilitate enantioselective alkenylation and alkynylation of benzylic C(sp3)-H bonds of 3-arylpropanamides with the corresponding bromide reagents under similar conditions.
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Affiliation(s)
- Yi Huang
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Xiaoyan Lv
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Hua-Rong Tong
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Wenji He
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Ziqian Bai
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Hao Wang
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Gang He
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Gong Chen
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
- Frontiers Science Center for New Organic Matter, Nankai University, Tianjin 300071, China
- Haihe Laboratory of Sustainable Chemical Transformations, Tianjin 300192, China
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4
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Qi J, Song T, Yang Z, Sun S, Tung CH, Xu Z. Simultaneous Dual Cu/Ir Catalysis: Stereodivergent Synthesis of Chiral β-Lactams with Adjacent Tertiary/Quaternary/Tertiary Stereocenters. ACS Catal 2023. [DOI: 10.1021/acscatal.2c04926] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/09/2023]
Affiliation(s)
- Jialin Qi
- College of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252000, China
| | - Tingting Song
- Key Lab for Colloid and Interface Chemistry of Education Ministry, Department of Chemistry, Shandong University, No. 27 South Shanda Road, Jinan 250100, China
| | - Zhenning Yang
- Key Lab for Colloid and Interface Chemistry of Education Ministry, Department of Chemistry, Shandong University, No. 27 South Shanda Road, Jinan 250100, China
| | - Shuzhe Sun
- Key Lab for Colloid and Interface Chemistry of Education Ministry, Department of Chemistry, Shandong University, No. 27 South Shanda Road, Jinan 250100, China
| | - Chen-Ho Tung
- Key Lab for Colloid and Interface Chemistry of Education Ministry, Department of Chemistry, Shandong University, No. 27 South Shanda Road, Jinan 250100, China
| | - Zhenghu Xu
- Key Lab for Colloid and Interface Chemistry of Education Ministry, Department of Chemistry, Shandong University, No. 27 South Shanda Road, Jinan 250100, China
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, China
- Key Laboratory of Precise Synthesis of Functional Molecules of Zhejiang Province, School of Science, Westlake University, 18 Shilongshan Road, Hangzhou 310024, China
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5
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Liu Z, Oxtoby LJ, Sun J, Li Z, Kim N, Davies GHM, Engle KM. A Sterically Tuned Directing Auxiliary Promotes Catalytic 1,2-Carbofluorination of Alkenyl Carbonyl Compounds. Angew Chem Int Ed Engl 2023; 62:e202214153. [PMID: 36221812 PMCID: PMC9851970 DOI: 10.1002/anie.202214153] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2022] [Revised: 10/10/2022] [Accepted: 10/10/2022] [Indexed: 11/07/2022]
Abstract
The site-selective palladium-catalyzed three-component coupling of unactivated alkenyl carbonyl compounds, aryl- or alkenylboronic acids, and N-fluorobenzenesulfonimide is described herein. Tuning of the steric environment on the bidentate directing auxiliary enhances regioselectivity and facilitates challenging C(sp3 )-F reductive elimination from a PdIV intermediate to afford 1,2-carbofluorination products in moderate to good yields.
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Affiliation(s)
- Zhonglin Liu
- Department of ChemistryThe Scripps Research Institute10550 North Torrey Pines RoadLa JollaCA 92037USA
| | - Lucas J. Oxtoby
- Department of ChemistryThe Scripps Research Institute10550 North Torrey Pines RoadLa JollaCA 92037USA
| | - Juntao Sun
- Department of ChemistryThe Scripps Research Institute10550 North Torrey Pines RoadLa JollaCA 92037USA
| | - Zi‐Qi Li
- Department of ChemistryThe Scripps Research Institute10550 North Torrey Pines RoadLa JollaCA 92037USA
| | - Nana Kim
- Department of ChemistryThe Scripps Research Institute10550 North Torrey Pines RoadLa JollaCA 92037USA
| | - Geraint H. M. Davies
- Bristol Myers Squibb, Small Molecule Drug Discovery200 Cambridge Park DriveCambridgeMA 02140USA
| | - Keary M. Engle
- Department of ChemistryThe Scripps Research Institute10550 North Torrey Pines RoadLa JollaCA 92037USA
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6
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Chen J, Teng M, Huang F, Song H, Wang Z, Zhuang H, Wu Y, Wu X, Yao Q, Shi B. Cobalt/Salox‐Catalyzed Enantioselective Dehydrogenative C−H Alkoxylation and Amination. Angew Chem Int Ed Engl 2022; 61:e202210106. [DOI: 10.1002/anie.202210106] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2022] [Indexed: 11/10/2022]
Affiliation(s)
- Jia‐Hao Chen
- Center of Chemistry for Frontier Technologies Department of Chemistry Zhejiang University Hangzhou 310027 China
| | - Ming‐Ya Teng
- Center of Chemistry for Frontier Technologies Department of Chemistry Zhejiang University Hangzhou 310027 China
| | - Fan‐Rui Huang
- Center of Chemistry for Frontier Technologies Department of Chemistry Zhejiang University Hangzhou 310027 China
| | - Hong Song
- Center of Chemistry for Frontier Technologies Department of Chemistry Zhejiang University Hangzhou 310027 China
| | - Zhen‐Kai Wang
- Center of Chemistry for Frontier Technologies Department of Chemistry Zhejiang University Hangzhou 310027 China
| | - He‐Lin Zhuang
- Center of Chemistry for Frontier Technologies Department of Chemistry Zhejiang University Hangzhou 310027 China
| | - Yong‐Jie Wu
- Center of Chemistry for Frontier Technologies Department of Chemistry Zhejiang University Hangzhou 310027 China
| | - Xu Wu
- Center of Chemistry for Frontier Technologies Department of Chemistry Zhejiang University Hangzhou 310027 China
| | - Qi‐Jun Yao
- Center of Chemistry for Frontier Technologies Department of Chemistry Zhejiang University Hangzhou 310027 China
| | - Bing‐Feng Shi
- Center of Chemistry for Frontier Technologies Department of Chemistry Zhejiang University Hangzhou 310027 China
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7
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Zhuang Z, Liu S, Cheng J, Yeung K, Qiao JX, Meanwell NA, Yu J. Ligand-Enabled β-C(sp 3 )-H Lactamization of Tosyl-Protected Aliphatic Amides Using a Practical Oxidant. Angew Chem Int Ed Engl 2022; 61:e202207354. [PMID: 35790471 PMCID: PMC9439703 DOI: 10.1002/anie.202207354] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Indexed: 11/25/2022]
Abstract
The development of C(sp3 )-H functionalization reactions that use common protecting groups and practical oxidants remains a significant challenge. Herein we report a monoprotected aminoethyl thioether (MPAThio) ligand-enabled β-C(sp3 )-H lactamization of tosyl-protected aliphatic amides using tert-butyl hydrogen peroxide (TBHP) as the sole oxidant. This protocol features exceedingly mild reaction conditions, reliable scalability, and the use of practical oxidants and protecting groups. Further derivatization of the β-lactam products enables the synthesis of a range of biologically important motifs including β-amino acids, γ-amino alcohols, and azetidines.
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Affiliation(s)
- Zhe Zhuang
- Department of ChemistryThe Scripps Research Institute10550 North Torrey Pines RoadLa JollaCA 92037USA
| | - Shuang Liu
- Department of ChemistryThe Scripps Research Institute10550 North Torrey Pines RoadLa JollaCA 92037USA
| | - Jin‐Tang Cheng
- Department of ChemistryThe Scripps Research Institute10550 North Torrey Pines RoadLa JollaCA 92037USA
| | - Kap‐Sun Yeung
- Small Molecule Drug DiscoveryBristol Myers Squibb Research and Early Development100 Binney StreetCambridgeMA 02142USA
| | - Jennifer X. Qiao
- Small Molecule Drug DiscoveryBristol Myers Squibb Research and Early DevelopmentP.O. Box 4000PrincetonNJ 08543USA
| | - Nicholas A. Meanwell
- Small Molecule Drug DiscoveryBristol Myers Squibb Research and Early DevelopmentP.O. Box 4000PrincetonNJ 08543USA
| | - Jin‐Quan Yu
- Department of ChemistryThe Scripps Research Institute10550 North Torrey Pines RoadLa JollaCA 92037USA
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8
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Chen JH, Teng MY, Huang FR, Song H, Wang ZK, Zhuang HL, Wu YJ, Wu X, Yao QJ, Shi BF. Cobalt/Salox‐Catalyzed Enantioselective Dehydrogenative C–H Alkoxylation and Amination. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202210106] [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)
- Jia-Hao Chen
- Zhejiang University Departmenf of Chemistry CHINA
| | - Ming-Ya Teng
- Zhejiang University Departmenf of Chemistry CHINA
| | | | - Hong Song
- Zhejiang University Departmenf of Chemistry CHINA
| | | | | | - Yong-Jie Wu
- Zhejiang University Departmenf of Chemistry CHINA
| | - Xu Wu
- Zhejiang University Departmenf of Chemistry CHINA
| | - Qi-Jun Yao
- Zhejiang University Departmenf of Chemistry CHINA
| | - Bing-Feng Shi
- Zhejiang University Department of Chemistry 38 Zheda Rd. 310027 Hangzhou CHINA
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9
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Chen X, Li B, Tong H, Qi L, He G, Chen G. Palladium‐catalyzed Methionine‐facilitated β and γ C(sp
3
)‐H Arylation of
N‐Terminal
Aliphatic Amino Acids of Peptides. CHINESE J CHEM 2022. [DOI: 10.1002/cjoc.202200340] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Xiangxiang Chen
- State Key Laboratory and Institute of Elemento‐Organic Chemistry, College of Chemistry, Nankai University Tianjin 300071 China
| | - Bo Li
- State Key Laboratory and Institute of Elemento‐Organic Chemistry, College of Chemistry, Nankai University Tianjin 300071 China
| | - Huarong Tong
- State Key Laboratory and Institute of Elemento‐Organic Chemistry, College of Chemistry, Nankai University Tianjin 300071 China
| | - Liping Qi
- State Key Laboratory and Institute of Elemento‐Organic Chemistry, College of Chemistry, Nankai University Tianjin 300071 China
| | - Gang He
- State Key Laboratory and Institute of Elemento‐Organic Chemistry, College of Chemistry, Nankai University Tianjin 300071 China
| | - Gong Chen
- State Key Laboratory and Institute of Elemento‐Organic Chemistry, College of Chemistry, Nankai University Tianjin 300071 China
- Haihe Laboratory of Sustainable Chemical Transformations Tianjin 300192 China
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10
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Yue Q, Liu B, Liao G, Shi BF. Binaphthyl Scaffold: A Class of Versatile Structure in Asymmetric C–H Functionalization. ACS Catal 2022. [DOI: 10.1021/acscatal.2c02193] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Qiang Yue
- Department of Chemistry, Zhejiang University, Hangzhou, Zhejiang310027, China
| | - Bin Liu
- School of Chemistry and Chemical Engineering, Nanchang University, Nanchang, Jiangxi330031, China
| | - Gang Liao
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, 117543Republic of Singapore
| | - Bing-Feng Shi
- Department of Chemistry, Zhejiang University, Hangzhou, Zhejiang310027, China
- School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan453007, China
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11
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Zhuang Z, Liu S, Cheng JT, Yeung KS, Qiao JX, Meanwell NA, Yu JQ. Ligand‐Enabled β‐C(sp3)−H Lactamization of Tosyl‐Protected Aliphatic Amides Using a Practical Oxidant. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202207354] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Zhe Zhuang
- The Scripps Research Institute Department of Chemistry 10550 N Torrey Pines Road 92037 La jolla UNITED STATES
| | - Shuang Liu
- The Scripps Research Institute Department of Chemistry 10550 N Torrey Pines Road 92037 La jolla UNITED STATES
| | - Jin-Tang Cheng
- The Scripps Research Institute Department of Chemistry 10550 N Torrey Pines Road 92037 La jolla UNITED STATES
| | - Kap-Sun Yeung
- Bristol Myers Squibb Research and Early Development UNITED STATES
| | - Jennifer X. Qiao
- Bristol-Myers Squibb Research Research and Early Development UNITED STATES
| | | | - Jin-Quan Yu
- The Scripps Research Institute chemistry 10550 N Torrey Pines Road 92037 La Jolla UNITED STATES
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12
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Gao Z, Wang H, Zhou C, Wang N, Li S, Li G. Formal C-H/C-I Metathesis: Site-Selective C-H Iodination of 2-Aryl Benzoic Acid Derivatives Using Aryl Iodide. Org Lett 2022; 24:3926-3931. [PMID: 35638770 DOI: 10.1021/acs.orglett.2c01224] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
C-H functionalization via functional group metathesis is extremely rare. A protocol of remote site-selective C-H iodination of 2-aryl benzoic acid derivatives via formal C(sp2)-H/C(sp2)-I metathesis using readily available 1-iodo-4-methoxy-2-nitrobenzene as the mild iodinating reagent was reported herein. A range of 2-aryl benzoic acid derivatives including 2-(naphthalen-1-yl)benzoic acids and [1,1'-binaphthalene]-2-carboxylic acids were iodinated under mild conditions to give valuable iodinated products in a site- and chemo-selective fashion.
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Affiliation(s)
- Zezhong Gao
- College of Chemistry, Fuzhou University, Fuzhou, Fujian 350002, China.,Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China
| | - Hang Wang
- Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China
| | - Chunlin Zhou
- Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China
| | - Ning Wang
- Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China
| | - Shangda Li
- Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China
| | - Gang Li
- Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China.,Frontiers Science Center for Transformative Molecules, Shanghai Jiao Tong University, Shanghai 200240, China
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13
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Wang N, Chi Z, Wang X, Gao Z, Li S, Li G. Formal C-H/C-I Metathesis: Site-Selective C-H Iodination of Anilines Using Aryl Iodides. Org Lett 2022; 24:3657-3662. [PMID: 35576322 DOI: 10.1021/acs.orglett.2c01283] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Functional group metathesis has the potential to render mild reaction conditions for C-H functionalization. Protocols for the meta- and ortho-C-H iodination of aniline derivatives via formal C(sp2)-H/C(sp2)-I metathesis using 2-nitrophenyl iodides as mild iodinating reagents are reported herein. These protocols led to the production of a range of valuable iodinated aniline derivatives. These results demonstrate the potential of developing novel site-selective C-H activation reactions with electron-rich compounds, since mild reagents can often been utilized in functional group metathesis reactions.
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Affiliation(s)
- Ning Wang
- College of Chemical Engineering, Fuzhou University, Fuzhou, Fujian 350002, China.,Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China
| | - Zhuomin Chi
- Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China
| | - Xinchao Wang
- Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China
| | - Zezhong Gao
- Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China
| | - Shangda Li
- Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China
| | - Gang Li
- Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China
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14
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Different Chiral Ligands Assisted Enantioselective C-H Functionalization with Transition-Metal Catalysts. Catalysts 2022. [DOI: 10.3390/catal12050537] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
C–H bonds are common in organic molecules, and the functionalization of these inactive C–H bonds has become one of the most powerful methods used to assemble complicated bioactive molecules from readily available starting materials. However, a central challenge in these reactions is controlling their stereoselectivity. Recently, significant progress has been made in the development of enantioselective C–H activation enabled by different chiral ligands for the formation of C–C and C–X bonds bearing a chiral center. In this paper, we focus on some archetypal chiral ligands for enantioselective C–H functionalization developed in recent years and analyze the mechanism of these methods, aiming to accelerate related research and to search for more efficient strategies.
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15
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Li HL, Yang DF, Jing HQ, Antilla JC, Kuninobu Y. Palladium-Catalyzed Enantioselective C(sp 3)-H Arylation of 2-Propyl Azaaryls Enabled by an Amino Acid Ligand. Org Lett 2022; 24:1286-1291. [PMID: 35142219 DOI: 10.1021/acs.orglett.1c04215] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
A palladium(II)-catalyzed enantioselective arylation of unbiased secondary C(sp3)-H bonds was developed. The enantioselectivity was controlled by the combination of a pyridyl or isoquinolinyl directing group and an amino acid, N-Boc-2-pentyl proline. A variety of 2-propyl azaaryls and biaryl iodides were employed to provide arylated products in moderate to good yields (up to 82%) with high enantioselectivities (up to 93:7 er). This reaction is a rare example of an amino-acid-enabled enantioselective acyclic methylene C(sp3)-H arylation. Furthermore, the reaction proceeded with high enantioselectivity even on a gram scale, and the product was transformed to a 5,6,7,8-tetrahydroisoquinoline bioactive molecule. Kinetic isotope effect (KIE) experiments indicated that C-H activation is the rate-determining step for the enantioselective C(sp3)-H arylation.
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Affiliation(s)
- Hong-Liang Li
- Guangxi Key Laboratory of Marine Natural Products and Combinatorial Biosynthesis Chemistry, Beibu Gulf Marine Research Center, Guangxi Academy of Sciences, Nanning 53007, China
| | - Deng-Feng Yang
- Guangxi Key Laboratory of Marine Natural Products and Combinatorial Biosynthesis Chemistry, Beibu Gulf Marine Research Center, Guangxi Academy of Sciences, Nanning 53007, China
| | - Hua-Qing Jing
- School of Pharmaceutical Science and Technology, Tianjin University, Nakai District, Tianjin 30072, China
| | - Jon C Antilla
- School of Pharmaceutical Science and Technology, Tianjin University, Nakai District, Tianjin 30072, China
| | - Yoichiro Kuninobu
- Institute for Materials Chemistry and Engineering, Kyushu University, 6-1 Kasugakoen, Kasuga-shi, Fukuoka 816-8580, Japan
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16
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17
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Yu X, Zhang ZZ, Niu JL, Shi BF. Coordination-assisted, transition-metal-catalyzed enantioselective desymmetric C–H functionalization. Org Chem Front 2022. [DOI: 10.1039/d1qo01884a] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Recent advances in transition-metal-catalyzed enantioselective desymmetric C–H functionalization are summarized.
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Affiliation(s)
- Xin Yu
- Department of Chemistry, Zhejiang University, Hangzhou, Zhejiang, 310027, China
| | - Zhuo-Zhuo Zhang
- School of Food and Biological Engineering, Chengdu University, Chengdu, Sichuan, 610106, China
| | - Jun-Long Niu
- Green Catalysis Center, College of Chemistry, Zhengzhou University, Zhengzhou 450001, China
| | - Bing-Feng Shi
- Department of Chemistry, Zhejiang University, Hangzhou, Zhejiang, 310027, China
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18
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Liu B, Romine AM, Rubel CZ, Engle KM, Shi BF. Transition-Metal-Catalyzed, Coordination-Assisted Functionalization of Nonactivated C(sp 3)-H Bonds. Chem Rev 2021; 121:14957-15074. [PMID: 34714620 PMCID: PMC8968411 DOI: 10.1021/acs.chemrev.1c00519] [Citation(s) in RCA: 190] [Impact Index Per Article: 63.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Transition-metal-catalyzed, coordination-assisted C(sp3)-H functionalization has revolutionized synthetic planning over the past few decades as the use of these directing groups has allowed for increased access to many strategic positions in organic molecules. Nonetheless, several challenges remain preeminent, such as the requirement for high temperatures, the difficulty in removing or converting directing groups, and, although many metals provide some reactivity, the difficulty in employing metals outside of palladium. This review aims to give a comprehensive overview of coordination-assisted, transition-metal-catalyzed, direct functionalization of nonactivated C(sp3)-H bonds by covering the literature since 2004 in order to demonstrate the current state-of-the-art methods as well as the current limitations. For clarity, this review has been divided into nine sections by the transition metal catalyst with subdivisions by the type of bond formation. Synthetic applications and reaction mechanism are discussed where appropriate.
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Affiliation(s)
- Bin Liu
- Center of Chemistry for Frontier Technologies, Department of Chemistry, Zhejiang University, 38 Zheda Rd., Hangzhou 310027, China.,College of Chemistry, Nanchang University, Nanchang, Jiangxi 330031, China
| | - Andrew M. Romine
- Department of Chemistry, The Scripps Research Institute, 10550 N. Torrey Pines Rd., La Jolla, California 92037, United States
| | - Camille Z. Rubel
- Department of Chemistry, The Scripps Research Institute, 10550 N. Torrey Pines Rd., La Jolla, California 92037, United States
| | - Keary M. Engle
- Department of Chemistry, The Scripps Research Institute, 10550 N. Torrey Pines Rd., La Jolla, California 92037, United States.,Corresponding Author- (K. M. E.); (B.-F. S.)
| | - Bing-Feng Shi
- Center of Chemistry for Frontier Technologies, Department of Chemistry, Zhejiang University, 38 Zheda Rd., Hangzhou 310027, China.,College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou 450001, China.,School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang 453007, China,Corresponding Author- (K. M. E.); (B.-F. S.)
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19
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Zhang Q, Wu LS, Shi BF. Forging C−heteroatom bonds by transition metal-catalyzed enantioselective C–H functionalization. Chem 2021. [DOI: 10.1016/j.chempr.2021.11.015] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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20
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Jin L, Zhang P, Li Y, Yu X, Shi BF. Atroposelective Synthesis of Conjugated Diene-Based Axially Chiral Styrenes via Pd(II)-Catalyzed Thioether-Directed Alkenyl C-H Olefination. J Am Chem Soc 2021; 143:12335-12344. [PMID: 34340309 DOI: 10.1021/jacs.1c06236] [Citation(s) in RCA: 68] [Impact Index Per Article: 22.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
The efficient stereoselective synthesis of conjugated dienes, especially those with axial chirality, remains a great challenge. Herein, we report the highly atroposelective synthesis of axially chiral styrenes with a conjugated 1,3-diene scaffold via a Pd(II)-catalyzed thioether-directed alkenyl C-H olefination strategy. This strategy features easy operation, mild reaction conditions, high functional group tolerance (69 examples), complete Z-selectivity, and excellent enantioselectivities (up to 99% ee). Notably, the highly enantioselective synthesis of atropisomers with two stereogenic axes were also achieved using this strategy (up to 99% ee and 97:3 dr). Moreover, the reaction could be scaled up, and the resulting axially chiral styrenes could be easily oxidized into chiral sulfoxide derivatives with high diastereoselectivities, which showed great promise as a new type of sulfur-olefin ligand.
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Affiliation(s)
- Liang Jin
- Center of Chemistry for Frontier Technologies, Department of Chemistry, Zhejiang University, Hangzhou 310027, China
| | - Peng Zhang
- Center of Chemistry for Frontier Technologies, Department of Chemistry, Zhejiang University, Hangzhou 310027, China
| | - Ya Li
- Center of Chemistry for Frontier Technologies, Department of Chemistry, Zhejiang University, Hangzhou 310027, China
| | - Xin Yu
- Center of Chemistry for Frontier Technologies, Department of Chemistry, Zhejiang University, Hangzhou 310027, China
| | - Bing-Feng Shi
- Center of Chemistry for Frontier Technologies, Department of Chemistry, Zhejiang University, Hangzhou 310027, China.,College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou 450001, China.,School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang 453007, China
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21
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Zhang Q, Shi BF. 2-(Pyridin-2-yl)isopropyl (PIP) Amine: An Enabling Directing Group for Divergent and Asymmetric Functionalization of Unactivated Methylene C(sp 3)-H Bonds. Acc Chem Res 2021; 54:2750-2763. [PMID: 34019373 DOI: 10.1021/acs.accounts.1c00168] [Citation(s) in RCA: 90] [Impact Index Per Article: 30.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Directing group (DG) assistance provides a good solution to the problems of reactivity and selectivity, two of the fundamental challenges in C(sp3)-H activation. However, the activation of unbiased methylene C(sp3)-H bonds remains challenging due to the high heterolytic bond dissociation energy and substantial steric hindrance. Two main strategies have been developed thus far, that is, use of a strongly coordinating bidentate DG pioneered by Daugulis and use of a weakly coordinating monodentate DG accelerated by pyridine-type ligands, as disclosed by Yu. The seminal work by Daugulis sparked significant interest in the application of the monoanionic bidentate auxiliary in aliphatic C-H activation reactions. Our research has focused on enabling the divergent functionalization and enantiotopic differentiation of unactivated methylene C-H bonds. Inspired by the structure of bidentate 8-aminoquinoline and the accelerating effect of the gem-dimethyl moiety in cyclometalations, we developed a strongly coordinating bidentate 2-(pyridine-yl)isopropyl (PIP) amine DG consisting of a pyridyl group, a gem-dimethyl moiety, and an amino group, which enabled the divergent functionalization of unactivated β-methylene C(sp3)-H bonds to forge C-O, C-N, C-C, and C-F bonds with palladium catalysts. The exclusive β-selectivity was ascribed to the preferential formation of kinetically favored [5,5]-bicyclic palladacycle intermediates. DFT calculations revealed that the well-designed gem-dimethyl group was responsible for the lowered energy and compressed bite angle of the key transition state related to C-H cleavage.More recently, the combination of PIP amine with axially chiral ligands was found to promote asymmetric functionalization of unbiased methylene C(sp3)-H bonds, a challenging research topic in the area of C-H activation that remains to be addressed. Two different types of axially chiral ligands, namely, non-C2-symmetric chiral phosphoric acids (CPAs) and 3,3'-disubstituted BINOLs, have been developed. The former enabled Pd(II)-catalyzed inter- and intramolecular arylation of unbiased methylene C(sp3)-H bonds with high enantioselectivity, whereas the latter promoted a series of asymmetric functionalization reactions, such as alkynylation, arylation, alkenylation/aza-Wacker cyclization, and intramolecular amidation. The unexpectedly high stereocontrol compared with other bidentate DGs might be attributable to steric communication between the ligand and gem-dimethyl moiety of PIP amine. Thus far, the combination of PIP amine DG with 3,3'-disubstituted BINOL ligands is arguably the most general strategy for asymmetric functionalization of unbiased methylene C(sp3)-H bonds. Finally, the ease of installation and removal of PIP under mild conditions and synthetic applications are described.
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Affiliation(s)
- Qi Zhang
- Department of Chemistry, Zhejiang University, Hangzhou, Zhejiang 310027, China
| | - Bing-Feng Shi
- Department of Chemistry, Zhejiang University, Hangzhou, Zhejiang 310027, China
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22
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Qi J, Wei F, Tung CH, Xu Z. Modular Synthesis of α-Quaternary Chiral β-Lactams by a Synergistic Copper/Palladium-Catalyzed Multicomponent Reaction. Angew Chem Int Ed Engl 2021; 60:13814-13818. [PMID: 33817889 DOI: 10.1002/anie.202100601] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2021] [Revised: 04/01/2021] [Indexed: 01/14/2023]
Abstract
An asymmetric multicomponent, interrupted Kinugasa allylic alkylation (IKAA) reaction has been developed with a synergistic Cu-catalyzed Kinugasa system and a Pd-catalyzed allylic alkylation reaction. This unprecedented reaction provides in high yields and with high stereoselectivity a synthesis of α-quaternary chiral β-lactams, which cannot be produced with existing synthetic methods. Stereoselective coupling of two catalytic amounts of transient organometallic intermediates formed in situ is an important feature of this reaction.
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Affiliation(s)
- Jialin Qi
- Department of Chemistry, Shandong University, No. 27 South Shanda Road, Jinan, 250100, China
| | - Fang Wei
- Department of Chemistry, Shandong University, No. 27 South Shanda Road, Jinan, 250100, China
| | - Chen-Ho Tung
- Department of Chemistry, Shandong University, No. 27 South Shanda Road, Jinan, 250100, China
| | - Zhenghu Xu
- Department of Chemistry, Shandong University, No. 27 South Shanda Road, Jinan, 250100, China.,State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai, 200032, China
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23
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Yang X, Jiang MX, Zhou T, Han YQ, Xu XT, Zhang K, Shi BF. Pd(II)-Catalyzed enantioselective arylation of unbiased methylene C(sp 3)-H bonds enabled by a 3,3'-F 2-BINOL ligand. Chem Commun (Camb) 2021; 57:5562-5565. [PMID: 33969855 DOI: 10.1039/d1cc01690c] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Palladium-catalyzed asymmetric functionalization of unbiased methylene C(sp3)-H bonds is a long-standing challenge. Here, we report a Pd(ii)-catalyzed highly enantioselective arylation of unbiased methylene C(sp3)-H bonds enabled by a strongly coordinating bidentate 2-pyridinylisopropyl (PIP) directing group and an easily accessible 3,3'-F2-BINOL chiral ligand. The use of aryl iodides with the combination of 3,3'-F2-BINOL was beneficial for high enantiocontrol. A range of aliphatic amides and aryl iodides were tolerated, providing the desired arylated products in high enantioselectivities (up to 96% ee). The PIP directing group could be removed under mild conditions without erosion of enantiopurity.
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Affiliation(s)
- Xu Yang
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, 529020, China
| | - Meng-Xue Jiang
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, 529020, China
| | - Tao Zhou
- Department of Chemistry, Zhejiang University, Hangzhou, Zhejiang 310027, China.
| | - Ye-Qiang Han
- Department of Chemistry, Zhejiang University, Hangzhou, Zhejiang 310027, China.
| | - Xue-Tao Xu
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, 529020, China
| | - Kun Zhang
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, 529020, China
| | - Bing-Feng Shi
- Department of Chemistry, Zhejiang University, Hangzhou, Zhejiang 310027, China. and College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou 450001, China
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24
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Tao Q, Li YN, Tang WJ, Liu PY, Yu F, He YP. Di-ortho-C H arylation of phenylalanine: A bimetallic interaction between Pd(IV)-Ag(I). Tetrahedron Lett 2021. [DOI: 10.1016/j.tetlet.2021.153158] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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25
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Qi J, Wei F, Tung C, Xu Z. Modular Synthesis of α‐Quaternary Chiral β‐Lactams by a Synergistic Copper/Palladium‐Catalyzed Multicomponent Reaction. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202100601] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Jialin Qi
- Department of Chemistry Shandong University No. 27 South Shanda Road Jinan 250100 China
| | - Fang Wei
- Department of Chemistry Shandong University No. 27 South Shanda Road Jinan 250100 China
| | - Chen‐Ho Tung
- Department of Chemistry Shandong University No. 27 South Shanda Road Jinan 250100 China
| | - Zhenghu Xu
- Department of Chemistry Shandong University No. 27 South Shanda Road Jinan 250100 China
- State Key Laboratory of Organometallic Chemistry Shanghai Institute of Organic Chemistry Chinese Academy of Sciences Shanghai 200032 China
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26
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Zhong R, Xu Y, Sun M, Wang Y. Palladium-Catalyzed Regioselective C-H Functionalization/Annulation Reaction of Amides and Allylbenzenes for the Synthesis of Isoquinolinones and Pyridinones. J Org Chem 2021; 86:5255-5264. [PMID: 33750119 DOI: 10.1021/acs.joc.1c00150] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
A regioselective C-H functionalization/annulation reaction of N-sulfonyl amides and allylbenzenes through a palladium-catalyzed C(sp2)-H allylation/aminopalladation/β-H elimination/isomerization sequence has been reported. Various aryl and alkenyl carboxamides are found to be efficient substrates to construct isoquinolinones and pyridinones in up to 96% yield. Using ambient air as the terminal oxidant is another advantage regarding environmental friendliness and operational simplicity.
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Affiliation(s)
- Rong Zhong
- School of Pharmaceutical Science, Zhejiang Chinese Medical University, Hangzhou 310053, P. R. China
| | - Yong Xu
- School of Pharmaceutical Science, Zhejiang Chinese Medical University, Hangzhou 310053, P. R. China
| | - Manman Sun
- Advanced Research Institute and Department of Chemistry, Taizhou University, 1139 Shifu Avenue, Taizhou 318000, P. R. China
| | - Yurong Wang
- School of Pharmaceutical Science, Zhejiang Chinese Medical University, Hangzhou 310053, P. R. China
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27
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Wu LS, Ding Y, Han YQ, Shi BF. Asymmetric Synthesis of γ-Lactams Containing α,β-Contiguous Stereocenters via Pd(II)-Catalyzed Cascade Methylene C(sp3)–H Alkenylation/Aza-Wacker Cyclization. Org Lett 2021; 23:2048-2051. [DOI: 10.1021/acs.orglett.1c00204] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Le-Song Wu
- Department of Chemistry, Zhejiang University, Hangzhou 310027, China
| | - Yi Ding
- Department of Chemistry, Zhejiang University, Hangzhou 310027, China
| | - Ye-Qiang Han
- Department of Chemistry, Zhejiang University, Hangzhou 310027, China
| | - Bing-Feng Shi
- Department of Chemistry, Zhejiang University, Hangzhou 310027, China
- Green Catalysis Center and College of Chemistry, Zhengzhou University, Zhengzhou 450001, China
- College of Biological, Chemical Science and Engineering, Jiaxing University, Jiaxing 314001, China
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28
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Zhong D, Wu L, Wang X, Liu W. Iron‐Catalyzed
Intramolecular C—H Amidation of
N
‐Benzoyloxyureas
. CHINESE J CHEM 2021. [DOI: 10.1002/cjoc.202100005] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- Dayou Zhong
- Sauvage Center for Molecular Sciences, Engineering Research Center of Organosilicon Compounds & Materials (Ministry of Education), College of Chemistry and Molecular Sciences, Wuhan University Wuhan Hubei 430072 China
| | - Lin‐Yang Wu
- Sauvage Center for Molecular Sciences, Engineering Research Center of Organosilicon Compounds & Materials (Ministry of Education), College of Chemistry and Molecular Sciences, Wuhan University Wuhan Hubei 430072 China
| | - Xing‐Zhen Wang
- Sauvage Center for Molecular Sciences, Engineering Research Center of Organosilicon Compounds & Materials (Ministry of Education), College of Chemistry and Molecular Sciences, Wuhan University Wuhan Hubei 430072 China
| | - Wen‐Bo Liu
- Sauvage Center for Molecular Sciences, Engineering Research Center of Organosilicon Compounds & Materials (Ministry of Education), College of Chemistry and Molecular Sciences, Wuhan University Wuhan Hubei 430072 China
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29
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Li MH, Si XJ, Zhang H, Yang D, Niu JL, Song MP. Directed Cobalt-Catalyzed C-H Activation to Form C-C and C-O Bonds in One Pot via Three-Component Coupling. Org Lett 2021; 23:914-919. [PMID: 33475370 DOI: 10.1021/acs.orglett.0c04122] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Herein, we disclose an efficient cobalt-catalyzed three-component coupling of benzamides, diazo compounds, and tert-butyl hydroperoxide, which provides an efficient approach to construct C(sp2)-C(sp3) and C-O bonds in one-pot accompanied with C-H activation. This protocol features low catalyst loading (4 mol %), the avoidance of additives, and excellent functional group compatibility, providing three-component coupling adducts with high yields under mild conditions (up to 88%). Mechanism studies show that the reaction may involve a radical process.
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Affiliation(s)
- Meng-Hui Li
- Green Catalysis Center, and College of Chemistry, Zhengzhou University, Zhengzhou 450001, P. R. China
| | - Xiao-Ju Si
- Green Catalysis Center, and College of Chemistry, Zhengzhou University, Zhengzhou 450001, P. R. China
| | - He Zhang
- Green Catalysis Center, and College of Chemistry, Zhengzhou University, Zhengzhou 450001, P. R. China
| | - Dandan Yang
- Green Catalysis Center, and College of Chemistry, Zhengzhou University, Zhengzhou 450001, P. R. China
| | - Jun-Long Niu
- Green Catalysis Center, and College of Chemistry, Zhengzhou University, Zhengzhou 450001, P. R. China
| | - Mao-Ping Song
- Green Catalysis Center, and College of Chemistry, Zhengzhou University, Zhengzhou 450001, P. R. China
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30
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Niu PP, Liu PY, Meng YN, Yu F, He YP. MIA-Directed 2-Pyridione-Enabled Selective Ortho-C–H Arylation of Phenylalanine: A Mechanistic Study. J Org Chem 2021; 86:3096-3106. [PMID: 33442983 DOI: 10.1021/acs.joc.0c02872] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Peng-Peng Niu
- Key Laboratory of Petrochemical Catalytic Science and Technology, Liaoning Shihua University, Dandong Road West 1, Fushun 113001, China
| | - Peng-Yu Liu
- Key Laboratory of Petrochemical Catalytic Science and Technology, Liaoning Shihua University, Dandong Road West 1, Fushun 113001, China
| | - Yue-Ning Meng
- Key Laboratory of Petrochemical Catalytic Science and Technology, Liaoning Shihua University, Dandong Road West 1, Fushun 113001, China
| | - Fang Yu
- Key Laboratory of Petrochemical Catalytic Science and Technology, Liaoning Shihua University, Dandong Road West 1, Fushun 113001, China
| | - Yu-Peng He
- Key Laboratory of Petrochemical Catalytic Science and Technology, Liaoning Shihua University, Dandong Road West 1, Fushun 113001, China
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31
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Qi J, Wei F, Huang S, Tung C, Xu Z. Copper(I)‐Catalyzed Asymmetric Interrupted Kinugasa Reaction: Synthesis of α‐Thiofunctional Chiral β‐Lactams. Angew Chem Int Ed Engl 2021; 60:4561-4565. [DOI: 10.1002/anie.202013450] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2020] [Indexed: 12/14/2022]
Affiliation(s)
- Jialin Qi
- Department of Chemistry Shandong University No. 27 South Shanda Road Jinan 250100 China
| | - Fang Wei
- Department of Chemistry Shandong University No. 27 South Shanda Road Jinan 250100 China
| | - Shuai Huang
- Department of Chemistry Shandong University No. 27 South Shanda Road Jinan 250100 China
| | - Chen‐Ho Tung
- Department of Chemistry Shandong University No. 27 South Shanda Road Jinan 250100 China
| | - Zhenghu Xu
- Department of Chemistry Shandong University No. 27 South Shanda Road Jinan 250100 China
- State Key Laboratory of Organometallic Chemistry Shanghai Institute of Organic Chemistry Chinese Academy of Sciences Shanghai 200032 China
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32
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Qi J, Wei F, Huang S, Tung C, Xu Z. Copper(I)‐Catalyzed Asymmetric Interrupted Kinugasa Reaction: Synthesis of α‐Thiofunctional Chiral β‐Lactams. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202013450] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Jialin Qi
- Department of Chemistry Shandong University No. 27 South Shanda Road Jinan 250100 China
| | - Fang Wei
- Department of Chemistry Shandong University No. 27 South Shanda Road Jinan 250100 China
| | - Shuai Huang
- Department of Chemistry Shandong University No. 27 South Shanda Road Jinan 250100 China
| | - Chen‐Ho Tung
- Department of Chemistry Shandong University No. 27 South Shanda Road Jinan 250100 China
| | - Zhenghu Xu
- Department of Chemistry Shandong University No. 27 South Shanda Road Jinan 250100 China
- State Key Laboratory of Organometallic Chemistry Shanghai Institute of Organic Chemistry Chinese Academy of Sciences Shanghai 200032 China
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33
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Zhuang Z, Herron AN, Liu S, Yu JQ. Rapid Construction of Tetralin, Chromane, and Indane Motifs via Cyclative C-H/C-H Coupling: Four-Step Total Synthesis of (±)-Russujaponol F. J Am Chem Soc 2021; 143:687-692. [PMID: 33395528 DOI: 10.1021/jacs.0c12484] [Citation(s) in RCA: 44] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
The development of practical C-H/C-H coupling reactions remains a challenging yet appealing synthetic venture because it circumvents the need to prefunctionalize both coupling partners for the generation of C-C bonds. Herein we report a cyclative C(sp3)-H/C(sp2)-H coupling reaction of free aliphatic acids enabled by a cyclopentane-based mono-N-protected β-amino acid ligand. This reaction uses inexpensive sodium percarbonate (Na2CO3·1.5H2O2) as the sole oxidant and generates water as the only byproduct. A range of biologically important scaffolds, including tetralins, chromanes, and indanes, can be easily prepared by this protocol. Finally, the synthetic application of this methodology is demonstrated by the concise total synthesis of (±)-russujaponol F in a four-step sequence starting from readily available phenylacetic acid and pivalic acid through sequential functionalizations of four C-H bonds.
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Affiliation(s)
- Zhe Zhuang
- Department of Chemistry, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, California 92037, United States
| | - Alastair N Herron
- Department of Chemistry, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, California 92037, United States
| | - Shuang Liu
- Department of Chemistry, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, California 92037, United States
| | - Jin-Quan Yu
- Department of Chemistry, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, California 92037, United States
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34
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Feng YL, Shi BF. Recent Advances in Base Metal (Copper, Cobalt and Nickel)-Catalyzed Directed C—H Amination. CHINESE J ORG CHEM 2021. [DOI: 10.6023/cjoc202104004] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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35
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Zhang T, Li S, Zhou C, Wang X, Zhang M, Gao Z, Li G. Site-Selective C—H Iodination of Phenol Derivatives Using Aryl Iodide as Iodinating Reagent. CHINESE J ORG CHEM 2021. [DOI: 10.6023/cjoc202106011] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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36
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Jiang MX, Yang X, Han YQ, Zhou T, Xu XT, Zhang K, Shi BF. Pd(ii)-Catalyzed asymmetric intramolecular arylation of unbiased methylene C(sp3)–H bonds using readily accessible 3,3′-F2-BINOL as a chiral ligand. Org Chem Front 2021. [DOI: 10.1039/d1qo00302j] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Pd(ii)-Catalyzed asymmetric intramolecular methylene C(sp3)–H arylation using readily accessible 3,3′-F2-BINOL as a ligand is reported.
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Affiliation(s)
- Meng-Xue Jiang
- School of Biotechnology and Health Sciences
- Wuyi University
- Jiangmen
- China
| | - Xu Yang
- School of Biotechnology and Health Sciences
- Wuyi University
- Jiangmen
- China
| | - Ye-Qiang Han
- Department of Chemistry
- Zhejiang University
- Hangzhou
- China
| | - Tao Zhou
- Department of Chemistry
- Zhejiang University
- Hangzhou
- China
| | - Xue-Tao Xu
- School of Biotechnology and Health Sciences
- Wuyi University
- Jiangmen
- China
| | - Kun Zhang
- School of Biotechnology and Health Sciences
- Wuyi University
- Jiangmen
- China
| | - Bing-Feng Shi
- Department of Chemistry
- Zhejiang University
- Hangzhou
- China
- College of Chemistry and Molecular Engineering
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37
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Wang F, Tan X, Wu T, Zheng LS, Chen GQ, Zhang X. Ni-Catalyzed asymmetric reduction of α-keto-β-lactams via DKR enabled by proton shuttling. Chem Commun (Camb) 2020; 56:15557-15560. [PMID: 33244528 DOI: 10.1039/d0cc05599a] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Chiral α-hydroxy-β-lactams are key fragments of many bioactive compounds and antibiotics, and the development of efficient synthetic methods for these compounds is of great value. The highly enantioselective dynamic kinetic resolution (DKR) of α-keto-β-lactams was realized via a novel proton shuttling strategy. A wide range of α-keto-β-lactams were reduced efficiently and enantioselectively by Ni-catalyzed asymmetric hydrogenation, providing the corresponding α-hydroxy-β-lactam derivatives with high yields and enantioselectivities (up to 92% yield, up to 94% ee). Deuterium-labelling experiments indicate that phenylphosphinic acid plays a pivotal role in the DKR of α-keto-β-lactams by promoting the enolization process. The synthetic potential of this protocol was demonstrated by its application in the synthesis of a key intermediate of Taxol and (+)-epi-Cytoxazone.
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Affiliation(s)
- Fangyuan Wang
- School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, People's Republic of China
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38
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Han YQ, Zhang Q, Yang X, Jiang MX, Ding Y, Shi BF. Pd(II)-Catalyzed Enantioselective Intramolecular Arylation of Unbiased C(sp3)–H Bonds to Construct Chiral Benzo-ring Compounds. Org Lett 2020; 23:97-101. [DOI: 10.1021/acs.orglett.0c03775] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Ye-Qiang Han
- Department of Chemistry, Zhejiang University, Hangzhou 310027, China
| | - Qi Zhang
- Department of Chemistry, Zhejiang University, Hangzhou 310027, China
| | - Xu Yang
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, 529020, China
| | - Meng-Xue Jiang
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, 529020, China
| | - Yi Ding
- Department of Chemistry, Zhejiang University, Hangzhou 310027, China
| | - Bing-Feng Shi
- Department of Chemistry, Zhejiang University, Hangzhou 310027, China
- College of Biological, Chemical Science and Engineering, Jiaxing University, Jiaxing 314001, China
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39
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Han Y, Yang X, Kong K, Deng Y, Wu L, Ding Y, Shi B. Synthesis of Acyclic Aliphatic Amides with Contiguous Stereogenic Centers via Palladium‐Catalyzed Enantio‐, Chemo‐ and Diastereoselective Methylene C(sp
3
)−H arylation. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202008952] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Ye‐Qiang Han
- Department of Chemistry Zhejiang University Hangzhou 310027 China
| | - Xu Yang
- School of Biotechnology and Health Sciences Wuyi University Jiangmen 529020 China
| | - Ke‐Xin Kong
- Department of Chemistry Zhejiang University Hangzhou 310027 China
| | - Yao‐Ting Deng
- Department of Chemistry Zhejiang University Hangzhou 310027 China
| | - Le‐Song Wu
- Department of Chemistry Zhejiang University Hangzhou 310027 China
| | - Yi Ding
- Department of Chemistry Zhejiang University Hangzhou 310027 China
| | - Bing‐Feng Shi
- Department of Chemistry Zhejiang University Hangzhou 310027 China
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40
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Chang R, Chen Y, Yang W, Zhang Z, Guo Z, Li Y. Unveiling the Mechanism, Origin of Stereoselectivity, and Ligand-Dependent Reactivity in the Pd(II)-Catalyzed Unbiased Methylene C(sp 3)–H Alkenylation–Aza-Wacker Cyclization Reaction. J Org Chem 2020; 85:13191-13203. [DOI: 10.1021/acs.joc.0c01906] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Rong Chang
- College of Materials Science & Engineering, Key Laboratory of Interface Science and Engineering in Advanced Materials, Ministry of Education, Taiyuan University of Technology, Taiyuan, Shanxi 030024, People’s Republic of China
| | - Yonglin Chen
- College of Materials Science & Engineering, Key Laboratory of Interface Science and Engineering in Advanced Materials, Ministry of Education, Taiyuan University of Technology, Taiyuan, Shanxi 030024, People’s Republic of China
| | - Wenjing Yang
- College of Materials Science & Engineering, Key Laboratory of Interface Science and Engineering in Advanced Materials, Ministry of Education, Taiyuan University of Technology, Taiyuan, Shanxi 030024, People’s Republic of China
| | - Zhuxia Zhang
- College of Materials Science & Engineering, Key Laboratory of Interface Science and Engineering in Advanced Materials, Ministry of Education, Taiyuan University of Technology, Taiyuan, Shanxi 030024, People’s Republic of China
| | - Zhen Guo
- College of Materials Science & Engineering, Key Laboratory of Interface Science and Engineering in Advanced Materials, Ministry of Education, Taiyuan University of Technology, Taiyuan, Shanxi 030024, People’s Republic of China
| | - Yanrong Li
- Department of Earth Science and Engineering, Taiyuan University of Technology, Taiyuan, Shanxi 030024, People’s Republic of China
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41
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Liu Y, Song H, Zhang C, Liu Y, Shi B. Copper‐Catalyzed
Modular Access to
N
‐Fused
Polycyclic Indoles and
5‐Aroyl
‐pyrrol‐2‐ones
via
Intramolecular N—H/C—H Annulation with Alkynes: Scope and Mechanism Probes. CHINESE J CHEM 2020. [DOI: 10.1002/cjoc.202000246] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Yan‐Hua Liu
- Department of Chemistry, Zhejiang University, Hangzhou Zhejiang 310027 China
| | - Hong Song
- Department of Chemistry, Zhejiang University, Hangzhou Zhejiang 310027 China
| | - Chi Zhang
- Department of Chemistry, Zhejiang University, Hangzhou Zhejiang 310027 China
| | - Yue‐Jin Liu
- Department of Chemistry, Zhejiang University, Hangzhou Zhejiang 310027 China
| | - Bing‐Feng Shi
- Department of Chemistry, Zhejiang University, Hangzhou Zhejiang 310027 China
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42
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Chen X, Chen L, Zhao H, Gao Q, Shen Z, Xu S. Iridium‐Catalyzed
Enantioselective C(sp
3
)–H Borylation of Cyclobutanes. CHINESE J CHEM 2020. [DOI: 10.1002/cjoc.202000240] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Xiang Chen
- College of Chemical Engineering, Zhejiang University of Technology Hangzhou 310014 China
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Center for Excellence in Molecular Synthesis, Suzhou Research Institute, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences Lanzhou 730000 China
| | - Lili Chen
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Center for Excellence in Molecular Synthesis, Suzhou Research Institute, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences Lanzhou 730000 China
| | - Hongliang Zhao
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Center for Excellence in Molecular Synthesis, Suzhou Research Institute, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences Lanzhou 730000 China
| | - Qian Gao
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Center for Excellence in Molecular Synthesis, Suzhou Research Institute, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences Lanzhou 730000 China
| | - Zhenlu Shen
- College of Chemical Engineering, Zhejiang University of Technology Hangzhou 310014 China
| | - Senmiao Xu
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Center for Excellence in Molecular Synthesis, Suzhou Research Institute, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences Lanzhou 730000 China
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education, Hangzhou Normal University Hangzhou 311121 China
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43
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Han Y, Yang X, Kong K, Deng Y, Wu L, Ding Y, Shi B. Synthesis of Acyclic Aliphatic Amides with Contiguous Stereogenic Centers via Palladium‐Catalyzed Enantio‐, Chemo‐ and Diastereoselective Methylene C(sp
3
)−H arylation. Angew Chem Int Ed Engl 2020; 59:20455-20458. [DOI: 10.1002/anie.202008952] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2020] [Indexed: 12/29/2022]
Affiliation(s)
- Ye‐Qiang Han
- Department of Chemistry Zhejiang University Hangzhou 310027 China
| | - Xu Yang
- School of Biotechnology and Health Sciences Wuyi University Jiangmen 529020 China
| | - Ke‐Xin Kong
- Department of Chemistry Zhejiang University Hangzhou 310027 China
| | - Yao‐Ting Deng
- Department of Chemistry Zhejiang University Hangzhou 310027 China
| | - Le‐Song Wu
- Department of Chemistry Zhejiang University Hangzhou 310027 China
| | - Yi Ding
- Department of Chemistry Zhejiang University Hangzhou 310027 China
| | - Bing‐Feng Shi
- Department of Chemistry Zhejiang University Hangzhou 310027 China
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44
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Palladium-catalyzed aminocarbonylation of aryl iodides with amines: efficient access to bidentate amide directing groups. TRANSIT METAL CHEM 2020. [DOI: 10.1007/s11243-020-00418-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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45
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Li H, Kuninobu Y. Palladium‐Catalyzed Secondary C(
sp
3
)−H Arylation of 2‐Alkylpyridines. Adv Synth Catal 2020. [DOI: 10.1002/adsc.202000306] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Hong‐Liang Li
- Institute for Molecular Design and Synthesis, School of Pharmaceutical Science and TechnologyTianjin University 92Weijin Road, Nankai District Tianjin 300072 People's Republic of China
| | - Yoichiro Kuninobu
- Institute for Materials Chemistry and EngineeringKyushu University 6-1 Kasugakoen, Kasuga-shi Fukuoka 816-8580 Japan
- Department of Molecular and Material Sciences, Interdisciplinary Graduate School of Engineering SciencesKyushu University 6-1 Kasugakoen, Kasuga-shi Fukuoka 816-8580 Japan
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46
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Liu L, Song H, Liu YH, Wu LS, Shi BF. Achiral CpxIr(III)/Chiral Carboxylic Acid Catalyzed Enantioselective C–H Amidation of Ferrocenes under Mild Conditions. ACS Catal 2020. [DOI: 10.1021/acscatal.0c02049] [Citation(s) in RCA: 51] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Lei Liu
- Department of Chemistry, Zhejiang University, Hangzhou 310027, China
| | - Hong Song
- Department of Chemistry, Zhejiang University, Hangzhou 310027, China
| | - Yan-Hua Liu
- Department of Chemistry, Zhejiang University, Hangzhou 310027, China
| | - Le-Song Wu
- Department of Chemistry, Zhejiang University, Hangzhou 310027, China
| | - Bing-Feng Shi
- Department of Chemistry, Zhejiang University, Hangzhou 310027, China
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47
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Pd(II)‐Catalyzed Tandem Enantioselective Methylene C(sp
3
)−H Alkenylation–Aza‐Wacker Cyclization to Access β‐Stereogenic γ‐Lactams. Angew Chem Int Ed Engl 2020; 59:14060-14064. [DOI: 10.1002/anie.202004504] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2020] [Revised: 04/24/2020] [Indexed: 01/28/2023]
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48
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Ding Y, Han Y, Wu L, Zhou T, Yao Q, Feng Y, Li Y, Kong K, Shi B. Pd(II)‐Catalyzed Tandem Enantioselective Methylene C(sp
3
)−H Alkenylation–Aza‐Wacker Cyclization to Access β‐Stereogenic γ‐Lactams. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202004504] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Yi Ding
- Department of Chemistry Zhejiang University Hangzhou 310027 China
| | - Ye‐Qiang Han
- Department of Chemistry Zhejiang University Hangzhou 310027 China
| | - Le‐Song Wu
- Department of Chemistry Zhejiang University Hangzhou 310027 China
| | - Tao Zhou
- Department of Chemistry Zhejiang University Hangzhou 310027 China
| | - Qi‐Jun Yao
- Department of Chemistry Zhejiang University Hangzhou 310027 China
| | - Ya‐Lan Feng
- Department of Chemistry Zhejiang University Hangzhou 310027 China
| | - Ya Li
- Department of Chemistry Zhejiang University Hangzhou 310027 China
| | - Ke‐Xin Kong
- Department of Chemistry Zhejiang University Hangzhou 310027 China
| | - Bing‐Feng Shi
- Department of Chemistry Zhejiang University Hangzhou 310027 China
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49
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Han Y, Zhou T. Synthesis of Chiral
β‐Lactams
by
Pd‐Catalyzed
Enantioselective Amidation of Methylene C(sp
3
)–H Bonds Enabled by a
2‐Pyridylisopropyl
Auxiliary
†. CHINESE J CHEM 2020. [DOI: 10.1002/cjoc.202000041] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Ye‐Qiang Han
- Department of ChemistryZhejiang University, Hangzhou Zhejiang 310027 China
| | - Tao Zhou
- Department of ChemistryZhejiang University, Hangzhou Zhejiang 310027 China
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50
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Liu Y, Xia Y, Shi B. Ni‐Catalyzed Chelation‐Assisted
Direct Functionalization of Inert C—H Bonds. CHINESE J CHEM 2020. [DOI: 10.1002/cjoc.201900468] [Citation(s) in RCA: 44] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Yan‐Hua Liu
- Department of ChemistryZhejiang University Hangzhou Zhejiang 310027 China
| | - Yu‐Nong Xia
- Department of ChemistryZhejiang University Hangzhou Zhejiang 310027 China
| | - Bing‐Feng Shi
- Department of ChemistryZhejiang University Hangzhou Zhejiang 310027 China
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