401
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Wang X, Sun H, Liu J, Dai D, Zhang M, Zhou H, Zhong W, Lu X. Ruthenium-Promoted C–H Activation Reactions between DNA-Conjugated Acrylamide and Aromatic Acids. Org Lett 2018; 20:4764-4768. [DOI: 10.1021/acs.orglett.8b01837] [Citation(s) in RCA: 58] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Xuan Wang
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 501 Haike Road, Zhang Jiang Hi-Tech Park, Pudong, Shanghai 201203, P. R. China
- Amgen Asia R&D Center, Amgen Biopharmaceutical R&D (Shanghai) Co., Ltd., 4560 Jinke Road, Building No. 2, 13th Floor, Pudong, Shanghai 201210, P. R. China
| | - Hui Sun
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 501 Haike Road, Zhang Jiang Hi-Tech Park, Pudong, Shanghai 201203, P. R. China
| | - Jiaxiang Liu
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 501 Haike Road, Zhang Jiang Hi-Tech Park, Pudong, Shanghai 201203, P. R. China
| | - Dongcheng Dai
- Amgen Asia R&D Center, Amgen Biopharmaceutical R&D (Shanghai) Co., Ltd., 4560 Jinke Road, Building No. 2, 13th Floor, Pudong, Shanghai 201210, P. R. China
| | - Mingqiang Zhang
- Amgen Asia R&D Center, Amgen Biopharmaceutical R&D (Shanghai) Co., Ltd., 4560 Jinke Road, Building No. 2, 13th Floor, Pudong, Shanghai 201210, P. R. China
| | - Hu Zhou
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 501 Haike Road, Zhang Jiang Hi-Tech Park, Pudong, Shanghai 201203, P. R. China
| | - Wenge Zhong
- Amgen Asia R&D Center, Amgen Biopharmaceutical R&D (Shanghai) Co., Ltd., 4560 Jinke Road, Building No. 2, 13th Floor, Pudong, Shanghai 201210, P. R. China
| | - Xiaojie Lu
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 501 Haike Road, Zhang Jiang Hi-Tech Park, Pudong, Shanghai 201203, P. R. China
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402
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Cheng HG, Zhou Q. Bridgehead-Modified NBEs: A Solution to ortho-Constraint in Catellani-type Reactions. Chem 2018. [DOI: 10.1016/j.chempr.2018.07.013] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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403
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Qian G, Bai M, Gao S, Chen H, Zhou S, Cheng HG, Yan W, Zhou Q. Modular One-Step Three-Component Synthesis of Tetrahydroisoquinolines Using a Catellani Strategy. Angew Chem Int Ed Engl 2018; 57:10980-10984. [PMID: 29956881 DOI: 10.1002/anie.201806780] [Citation(s) in RCA: 48] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2018] [Indexed: 11/06/2022]
Abstract
Reported is a modular one-step three-component synthesis of tetrahydroisoquinolines using a Catellani strategy. This process exploits aziridines as the alkylating reagents, through palladium/norbornene cooperative catalysis, to enable a Catellani/Heck/aza-Michael addition cascade. This mild, chemoselective, and scalable protocol has broad substrate scope (43 examples, up to 90 % yield). The most striking feature of this protocol is the excellent regioselectivity and diastereoselectivity observed for 2-alkyl- and 2-aryl-substituted aziridines to access 1,3-cis-substituted and 1,4-cis-substituted tetrahydroisoquinolines, respectively. Moreover, this is a versatile process with high step and atom economy.
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Affiliation(s)
- Guangyin Qian
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, China
| | - Miao Bai
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, China
| | - Shijun Gao
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, China
| | - Han Chen
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, China
| | - Siwei Zhou
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, China
| | - Hong-Gang Cheng
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, China
| | - Wei Yan
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, China
| | - Qianghui Zhou
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, China.,The Institute for Advanced Studies, Wuhan University, Wuhan, 430072, China
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404
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Qian G, Bai M, Gao S, Chen H, Zhou S, Cheng HG, Yan W, Zhou Q. Modular One-Step Three-Component Synthesis of Tetrahydroisoquinolines Using a Catellani Strategy. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201806780] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Guangyin Qian
- College of Chemistry and Molecular Sciences; Wuhan University; Wuhan 430072 China
| | - Miao Bai
- College of Chemistry and Molecular Sciences; Wuhan University; Wuhan 430072 China
| | - Shijun Gao
- College of Chemistry and Molecular Sciences; Wuhan University; Wuhan 430072 China
| | - Han Chen
- College of Chemistry and Molecular Sciences; Wuhan University; Wuhan 430072 China
| | - Siwei Zhou
- College of Chemistry and Molecular Sciences; Wuhan University; Wuhan 430072 China
| | - Hong-Gang Cheng
- College of Chemistry and Molecular Sciences; Wuhan University; Wuhan 430072 China
| | - Wei Yan
- College of Chemistry and Molecular Sciences; Wuhan University; Wuhan 430072 China
| | - Qianghui Zhou
- College of Chemistry and Molecular Sciences; Wuhan University; Wuhan 430072 China
- The Institute for Advanced Studies; Wuhan University; Wuhan 430072 China
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405
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Duarah G, Kaishap PP, Sarma B, Gogoi S. Ruthenium(II)-Catalyzed Dearomatized C-H Activation and Annulation Reaction of Vinylnaphthols with Alkynes: Access to Spiro-Pentacyclic Naphthalenones. Chemistry 2018; 24:10196-10200. [PMID: 29723429 DOI: 10.1002/chem.201801537] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2018] [Indexed: 01/24/2023]
Abstract
The ruthenium(II)-catalyzed annulation of vinylnaphthols and alkynes is described. The reaction proceeds through C-H activation, dearomatization, and alkyne insertion. This reaction affords spiro-pentacyclic naphthalenones that have biological significance in good yields.
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Affiliation(s)
- Gauri Duarah
- Applied Organic Chemistry, Chemical Sciences & Technology Division, CSIR-North East Institute of Science and Technology, Jorhat, 785006, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Partha P Kaishap
- Applied Organic Chemistry, Chemical Sciences & Technology Division, CSIR-North East Institute of Science and Technology, Jorhat, 785006, India
| | - Bipul Sarma
- Department of Chemical Sciences, Tezpur University, Napaam, Tezpur, 784028, India
| | - Sanjib Gogoi
- Applied Organic Chemistry, Chemical Sciences & Technology Division, CSIR-North East Institute of Science and Technology, Jorhat, 785006, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
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406
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Deng L, Chen M, Dong G. Concise Synthesis of (-)-Cycloclavine and (-)-5- epi-Cycloclavine via Asymmetric C-C Activation. J Am Chem Soc 2018; 140:9652-9658. [PMID: 29976068 DOI: 10.1021/jacs.8b05549] [Citation(s) in RCA: 61] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
To illustrate the synthetic significance of C-C activation methods, here we describe an efficient strategy for the enantioselective total syntheses of (-)-cycloclavine and (-)-5- epi-cycloclavine, which is enabled by an asymmetric Rh-catalyzed "cut-and-sew" transformation between benzocyclobutenones and olefins. Despite the compact structure of cycloclavine with five-fused rings, the total synthesis was accomplished in 10 steps with a 30% overall yield. Key features of the synthesis include (1) a Pd-catalyzed tandem C-N bond coupling/allylic alkylation sequence to construct the nitrogen-tethered benzocyclobutenone, (2) a highly enantioselective Rh-catalyzed carboacylation of alkenes to forge the indoline-fused tricyclic structure, and (3) a diastereoselective cyclopropanation for preparing the tetrasubstituted cyclopropane ring. Notably, an improved catalytic condition has been developed for the nitrogen-tethered cut-and-sew transformation, which uses a low catalyst loading and allows for a broad substrate scope with high enantioselectivity (94-99% e.e.). The C-C activation-based strategy employed here is anticipated to have further implications for syntheses of other natural products that contain complex fused or bridged rings.
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Affiliation(s)
- Lin Deng
- Department of Chemistry , University of Chicago , Chicago , Illinois 60637 , United States
| | - Mengqing Chen
- Department of Chemistry , University of Chicago , Chicago , Illinois 60637 , United States.,The College of Chemistry , Nankai University , Tianjin 300071 , China
| | - Guangbin Dong
- Department of Chemistry , University of Chicago , Chicago , Illinois 60637 , United States
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407
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Liu W, Zheng J, Liu Z, Hu W, Wang X, Dang Y. How Does Palladium–Amino Acid Cooperative Catalysis Enable Regio- and Stereoselective C(sp3)–H Functionalization in Aldehydes and Ketones? A DFT Mechanistic Study. ACS Catal 2018. [DOI: 10.1021/acscatal.8b02281] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Wenjing Liu
- Department of Chemistry and Tianjin Key Laboratory of Molecular Optoelectronic Sciences, Tianjin University and Collaborative Innovation Center of Chemical Science and Engineering, Tianjin 300072, China
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Jia Zheng
- Department of Chemistry and Tianjin Key Laboratory of Molecular Optoelectronic Sciences, Tianjin University and Collaborative Innovation Center of Chemical Science and Engineering, Tianjin 300072, China
| | - Zheyuan Liu
- Department of Chemistry and Tianjin Key Laboratory of Molecular Optoelectronic Sciences, Tianjin University and Collaborative Innovation Center of Chemical Science and Engineering, Tianjin 300072, China
| | - Wenping Hu
- Department of Chemistry and Tianjin Key Laboratory of Molecular Optoelectronic Sciences, Tianjin University and Collaborative Innovation Center of Chemical Science and Engineering, Tianjin 300072, China
| | - Xiaotai Wang
- Department of Chemistry, University of Colorado Denver, Campus Box 194, P.O. Box 173364, Denver, Colorado 80217-3364, United States
- Institute of Molecular Science, Shanxi University, Taiyuan, Shanxi 030006, China
| | - Yanfeng Dang
- Department of Chemistry and Tianjin Key Laboratory of Molecular Optoelectronic Sciences, Tianjin University and Collaborative Innovation Center of Chemical Science and Engineering, Tianjin 300072, China
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408
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Wu S, Luo S, Guo W, Wang T, Xie Q, Wang J, Liu G. Direct Conversion of Ethyl Ketone to Alkyl Ketone via Chelation-Assisted Rhodium(I)-Catalyzed Carbon–Carbon Bond Cleavage: Ligands Play an Important Role in the Inhibition of β-Hydrogen Elimination. Organometallics 2018. [DOI: 10.1021/acs.organomet.8b00309] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Shutao Wu
- Department of Chemistry, College of Science, Tianjin University, Tianjin 300350, People’s Republic of China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) Tianjin 30072, People’s Republic of China
| | - Siyuan Luo
- Department of Chemistry, College of Science, Tianjin University, Tianjin 300350, People’s Republic of China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) Tianjin 30072, People’s Republic of China
| | - Weijie Guo
- Department of Chemistry, College of Science, Tianjin University, Tianjin 300350, People’s Republic of China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) Tianjin 30072, People’s Republic of China
| | - Tao Wang
- Department of Chemistry, College of Science, Tianjin University, Tianjin 300350, People’s Republic of China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) Tianjin 30072, People’s Republic of China
| | - Qingxiao Xie
- Department of Chemistry, College of Science, Tianjin University, Tianjin 300350, People’s Republic of China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) Tianjin 30072, People’s Republic of China
| | - Jianhui Wang
- Department of Chemistry, College of Science, Tianjin University, Tianjin 300350, People’s Republic of China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) Tianjin 30072, People’s Republic of China
| | - Guiyan Liu
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules, Key Laboratory of Inorganic−Organic Hybrid Functional Material Chemistry, College of Chemistry, Tianjin Normal University, Tianjin 300387, People’s Republic of China
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409
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Liang YF, Steinbock R, Yang L, Ackermann L. Continuous Visible-Light Photoflow Approach for a Manganese-Catalyzed (Het)Arene C-H Arylation. Angew Chem Int Ed Engl 2018; 57:10625-10629. [PMID: 29882633 DOI: 10.1002/anie.201805644] [Citation(s) in RCA: 68] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2018] [Revised: 06/06/2018] [Indexed: 11/12/2022]
Abstract
Manganese photocatalysts enabled versatile room-temperature C-H arylation reactions by means of continuous visible-light photoflow, thus allowing for efficient C-H arylations in 30 minutes with ample scope. The robustness of the manganese-catalyzed photoflow strategy was shown by visible light-induced gram-scale synthesis, clearly outperforming the batch performance.
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Affiliation(s)
- Yu-Feng Liang
- Institut für Organische und Biomolekulare Chemie, Georg-August-Universität Göttingen, Tammannstraße 2, 37077, Göttingen, Germany
| | - Ralf Steinbock
- Institut für Organische und Biomolekulare Chemie, Georg-August-Universität Göttingen, Tammannstraße 2, 37077, Göttingen, Germany
| | - Long Yang
- Institut für Organische und Biomolekulare Chemie, Georg-August-Universität Göttingen, Tammannstraße 2, 37077, Göttingen, Germany
| | - Lutz Ackermann
- Institut für Organische und Biomolekulare Chemie, Georg-August-Universität Göttingen, Tammannstraße 2, 37077, Göttingen, Germany
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410
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Qi B, Guo S, Zhang W, Yu X, Song C, Zhu J. Rh(III)-Catalyzed Enaminone-Directed Alkenyl C–H Activation for the Synthesis of Salicylaldehydes. Org Lett 2018; 20:3996-3999. [DOI: 10.1021/acs.orglett.8b01563] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Bing Qi
- Department of Polymer Science and Engineering, School of Chemistry and Chemical Engineering, State Key Laboratory of Coordination Chemistry, Nanjing University, Nanjing 210023, China
| | - Shan Guo
- Department of Polymer Science and Engineering, School of Chemistry and Chemical Engineering, State Key Laboratory of Coordination Chemistry, Nanjing University, Nanjing 210023, China
| | - Wenjing Zhang
- Department of Polymer Science and Engineering, School of Chemistry and Chemical Engineering, State Key Laboratory of Coordination Chemistry, Nanjing University, Nanjing 210023, China
| | - Xiaolong Yu
- Department of Polymer Science and Engineering, School of Chemistry and Chemical Engineering, State Key Laboratory of Coordination Chemistry, Nanjing University, Nanjing 210023, China
| | - Chao Song
- Department of Polymer Science and Engineering, School of Chemistry and Chemical Engineering, State Key Laboratory of Coordination Chemistry, Nanjing University, Nanjing 210023, China
| | - Jin Zhu
- Department of Polymer Science and Engineering, School of Chemistry and Chemical Engineering, State Key Laboratory of Coordination Chemistry, Nanjing University, Nanjing 210023, China
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411
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Yu Z, Zhai G, Xian M, Lu M, Wang P, Jiang T, Xu C, Sun W. Biomimetic Cleavage of Aryl–Nitrogen Bonds in N-Arylazoles Catalyzed by Metalloporphyrins. Catal Letters 2018. [DOI: 10.1007/s10562-018-2446-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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412
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Mu D, He G, Chen G. Palladium-CatalyzedorthoC−H Arylation of Benzaldehydes Usingortho-Sulfinyl Aniline as Transient Auxiliary. Chem Asian J 2018; 13:2423-2426. [DOI: 10.1002/asia.201800581] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2018] [Revised: 04/30/2018] [Indexed: 11/07/2022]
Affiliation(s)
- Delong Mu
- 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
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin); Tianjin 300071 China
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413
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Zhou Z, Bian M, Zhao L, Gao H, Huang J, Liu X, Yu X, Li X, Yi W. 2H-Chromene-3-carboxylic Acid Synthesis via Solvent-Controlled and Rhodium(III)-Catalyzed Redox-Neutral C–H Activation/[3 + 3] Annulation Cascade. Org Lett 2018; 20:3892-3896. [PMID: 29897772 DOI: 10.1021/acs.orglett.8b01477] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Zhi Zhou
- Key Laboratory of Molecular Target & Clinical Pharmacology, School of Pharmaceutical Sciences & the Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, Guangdong 511436, China
| | - Mengyao Bian
- Key Laboratory of Molecular Target & Clinical Pharmacology, School of Pharmaceutical Sciences & the Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, Guangdong 511436, China
| | - Lixin Zhao
- Key Laboratory of Molecular Target & Clinical Pharmacology, School of Pharmaceutical Sciences & the Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, Guangdong 511436, China
| | - Hui Gao
- Key Laboratory of Molecular Target & Clinical Pharmacology, School of Pharmaceutical Sciences & the Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, Guangdong 511436, China
| | - Junjun Huang
- Key Laboratory of Molecular Target & Clinical Pharmacology, School of Pharmaceutical Sciences & the Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, Guangdong 511436, China
| | - Xiawen Liu
- Key Laboratory of Molecular Target & Clinical Pharmacology, School of Pharmaceutical Sciences & the Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, Guangdong 511436, China
| | - Xiyong Yu
- Key Laboratory of Molecular Target & Clinical Pharmacology, School of Pharmaceutical Sciences & the Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, Guangdong 511436, China
| | - Xingwei Li
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Wei Yi
- Key Laboratory of Molecular Target & Clinical Pharmacology, School of Pharmaceutical Sciences & the Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, Guangdong 511436, China
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414
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Advances in Development of C–H Activation/Functionalization Using a Catalytic Directing Group. ChemistrySelect 2018. [DOI: 10.1002/slct.201801097] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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415
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416
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Tian M, Zheng G, Fan X, Li X. Rhodium(III)-Catalyzed Redox-Neutral Synthesis of Isoquinolinium Salts via C–H Activation of Imines. J Org Chem 2018; 83:6477-6488. [DOI: 10.1021/acs.joc.8b00758] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Miaomiao Tian
- Henan Key Laboratory of Organic Functional Molecule and Drug Innovation, Henan Normal University, Xinxiang 453007, China
| | - Guangfan Zheng
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Xuesen Fan
- Henan Key Laboratory of Organic Functional Molecule and Drug Innovation, Henan Normal University, Xinxiang 453007, China
| | - Xingwei Li
- Henan Key Laboratory of Organic Functional Molecule and Drug Innovation, Henan Normal University, Xinxiang 453007, China
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
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417
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Chen S, Liu ZS, Yang T, Hua Y, Zhou Z, Cheng HG, Zhou Q. The Discovery of a Palladium(II)-Initiated Borono-Catellani Reaction. Angew Chem Int Ed Engl 2018; 57:7161-7165. [PMID: 29696768 DOI: 10.1002/anie.201803865] [Citation(s) in RCA: 53] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2018] [Revised: 04/25/2018] [Indexed: 11/09/2022]
Abstract
Reported is a novel palladium(II)-initiated Catellani-type reaction that utilizes widely accessible aryl boronic acids as the substrates instead of aryl halides, thereby greatly expanding the existing scope of this powerful transformation. This borono-Catellani reaction was promoted by cooperative catalysis between Pd(OAc)2 and the inexpensive 5-norbornene-2-carbonitrile. Practicality is the striking feature of the reaction: it is run open to air at ambient temperature and no phosphine ligand is needed. This mild, chemoselective, and scalable protocol is compatible with a large range of readily available functionalized aryl boronic acids and bromides, as well as terminating olefins (50 examples, 39-97 % yields). Moreover, the orthogonal reactivity between the borono-Catellani and classical Catellani reaction was demonstrated. This work is expected to open new avenues for developing novel Catellani-type reactions.
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Affiliation(s)
- Shuqing Chen
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, China
| | - Ze-Shui Liu
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, China
| | - Tao Yang
- The Institute for Advanced Studies, Wuhan University, Wuhan, 430072, China
| | - Yu Hua
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, China
| | - Zhiyu Zhou
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, China
| | - Hong-Gang Cheng
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, China
| | - Qianghui Zhou
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, China.,The Institute for Advanced Studies, Wuhan University, Wuhan, 430072, China
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418
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Chen S, Liu ZS, Yang T, Hua Y, Zhou Z, Cheng HG, Zhou Q. The Discovery of a Palladium(II)-Initiated Borono-Catellani Reaction. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201803865] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Shuqing Chen
- College of Chemistry and Molecular Sciences; Wuhan University; Wuhan 430072 China
| | - Ze-Shui Liu
- College of Chemistry and Molecular Sciences; Wuhan University; Wuhan 430072 China
| | - Tao Yang
- The Institute for Advanced Studies; Wuhan University; Wuhan 430072 China
| | - Yu Hua
- College of Chemistry and Molecular Sciences; Wuhan University; Wuhan 430072 China
| | - Zhiyu Zhou
- College of Chemistry and Molecular Sciences; Wuhan University; Wuhan 430072 China
| | - Hong-Gang Cheng
- College of Chemistry and Molecular Sciences; Wuhan University; Wuhan 430072 China
| | - Qianghui Zhou
- College of Chemistry and Molecular Sciences; Wuhan University; Wuhan 430072 China
- The Institute for Advanced Studies; Wuhan University; Wuhan 430072 China
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419
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Cayuelas A, Larrañaga O, Selva V, Nájera C, Akiyama T, Sansano JM, de Cózar A, Miranda JI, Cossío FP. Cooperative Catalysis with Coupled Chiral Induction in 1,3-Dipolar Cycloadditions of Azomethine Ylides. Chemistry 2018; 24:8092-8097. [DOI: 10.1002/chem.201801433] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2018] [Indexed: 12/17/2022]
Affiliation(s)
- Alberto Cayuelas
- Departamento de Química Orgánica; Universidad de Alicante.; Ctra. Alicante-San Vicente s/n 03080 Alicante Spain
- Centro de Innovación en Química Avanzada (ORFEO-CINQA); Spain
| | - Olatz Larrañaga
- Centro de Innovación en Química Avanzada (ORFEO-CINQA); Spain
- Departamento de Química Orgánica I, Facultad de Química; Universidad del País Vasco/Euskal Herriko Unibertsitatea UPV/EHU; P. K. 1072 E-20018 San Sebastián Spain
| | - Verónica Selva
- Departamento de Química Orgánica; Universidad de Alicante.; Ctra. Alicante-San Vicente s/n 03080 Alicante Spain
- Centro de Innovación en Química Avanzada (ORFEO-CINQA); Spain
- Institute of Organic Synthesis; Universidad de Alicante; Spain
| | - Carmen Nájera
- Departamento de Química Orgánica; Universidad de Alicante.; Ctra. Alicante-San Vicente s/n 03080 Alicante Spain
- Centro de Innovación en Química Avanzada (ORFEO-CINQA); Spain
| | - Takahiko Akiyama
- Department of Chemistry, Faculty of Science; Gakushuin University; 1-5-1 Mejiro Toshima-ku Tokyo, 171-8588 Japan
| | - José M. Sansano
- Departamento de Química Orgánica; Universidad de Alicante.; Ctra. Alicante-San Vicente s/n 03080 Alicante Spain
- Centro de Innovación en Química Avanzada (ORFEO-CINQA); Spain
- Institute of Organic Synthesis; Universidad de Alicante; Spain
| | - Abel de Cózar
- Centro de Innovación en Química Avanzada (ORFEO-CINQA); Spain
- Departamento de Química Orgánica I, Facultad de Química; Universidad del País Vasco/Euskal Herriko Unibertsitatea UPV/EHU; P. K. 1072 E-20018 San Sebastián Spain
- IKERBASQUE; Basque Foundation for Science; 48011 Bilbao Spain
| | | | - Fernando P. Cossío
- Centro de Innovación en Química Avanzada (ORFEO-CINQA); Spain
- Departamento de Química Orgánica I, Facultad de Química; Universidad del País Vasco/Euskal Herriko Unibertsitatea UPV/EHU; P. K. 1072 E-20018 San Sebastián Spain
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420
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Zhu L, Wang D, Jia Z, Lin Q, Huang M, Luo S. Catalytic Asymmetric Oxidative Enamine Transformations. ACS Catal 2018. [DOI: 10.1021/acscatal.8b01263] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Lihui Zhu
- Key Laboratory of Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, People’s Republic of China
- University of Chinese Academy of Sciences, Beijing 100490, People’s Republic of China
| | - Dehong Wang
- Key Laboratory of Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, People’s Republic of China
- University of Chinese Academy of Sciences, Beijing 100490, People’s Republic of China
| | - Zongbin Jia
- Key Laboratory of Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, People’s Republic of China
- University of Chinese Academy of Sciences, Beijing 100490, People’s Republic of China
| | - Qifeng Lin
- Key Laboratory of Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, People’s Republic of China
- University of Chinese Academy of Sciences, Beijing 100490, People’s Republic of China
| | - Mouxin Huang
- Center of Basic Molecular Science (CBMS), Department of Chemistry, Tsinghua University, Beijing 100084, People’s Republic of China
| | - Sanzhong Luo
- Key Laboratory of Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, People’s Republic of China
- University of Chinese Academy of Sciences, Beijing 100490, People’s Republic of China
- Center of Basic Molecular Science (CBMS), Department of Chemistry, Tsinghua University, Beijing 100084, 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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421
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Xia Y, Wang J, Dong G. Suzuki-Miyaura Coupling of Simple Ketones via Activation of Unstrained Carbon-Carbon Bonds. J Am Chem Soc 2018; 140:5347-5351. [PMID: 29652498 PMCID: PMC5963696 DOI: 10.1021/jacs.8b02462] [Citation(s) in RCA: 63] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Here, we describe that simple ketones can be efficiently employed as electrophiles in Suzuki-Miyaura coupling reactions via catalytic activation of unstrained C-C bonds. A range of common ketones, such as cyclopentanones, acetophenones, acetone and 1-indanones, could be directly coupled with various arylboronates in high site-selectivity, which offers a distinct entry to more functionalized aromatic ketones. Preliminary mechanistic study suggests that the ketone α-C-C bond was cleaved via oxidative addition.
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Affiliation(s)
- Ying Xia
- Department of Chemistry, University of Chicago, Chicago, Illinois 60637, United States
| | - Jianchun Wang
- Department of Chemistry, University of Chicago, Chicago, Illinois 60637, United States
| | - Guangbin Dong
- Department of Chemistry, University of Chicago, Chicago, Illinois 60637, United States
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422
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Ma E, Jiang Y, Chen Y, Qi L, Yan X, Li Z. Salicylate‐Directed C−O Bond Cleavage: Iron‐Catalyzed Allylic Substitution with Grignard Reagents. ASIAN J ORG CHEM 2018. [DOI: 10.1002/ajoc.201800057] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
- Enlu Ma
- Department of ChemistryRenmin University of China Beijing 100872 P. R. China
| | - Yifan Jiang
- Department of ChemistryRenmin University of China Beijing 100872 P. R. China
| | - Yuanjin Chen
- Department of ChemistryRenmin University of China Beijing 100872 P. R. China
| | - Longying Qi
- Department of ChemistryRenmin University of China Beijing 100872 P. R. China
| | - Xiaoyu Yan
- Department of ChemistryRenmin University of China Beijing 100872 P. R. China
| | - Zhiping Li
- Department of ChemistryRenmin University of China Beijing 100872 P. R. China
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423
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Liu ZS, Qian G, Gao Q, Wang P, Cheng HG, Wei Q, Liu Q, Zhou Q. Palladium/Norbornene Cooperative Catalysis To Access Tetrahydronaphthalenes and Indanes with a Quaternary Center. ACS Catal 2018. [DOI: 10.1021/acscatal.8b00975] [Citation(s) in RCA: 58] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Ze-Shui Liu
- College of Chemistry and Molecular Sciences, Wuhan University, 430072, Wuhan, China
| | - Guangyin Qian
- College of Chemistry and Molecular Sciences, Wuhan University, 430072, Wuhan, China
| | - Qianwen Gao
- College of Chemistry and Molecular Sciences, Wuhan University, 430072, Wuhan, China
| | - Peng Wang
- College of Chemistry and Molecular Sciences, Wuhan University, 430072, Wuhan, China
| | - Hong-Gang Cheng
- College of Chemistry and Molecular Sciences, Wuhan University, 430072, Wuhan, China
| | - Qiang Wei
- College of Chemistry and Molecular Sciences, Wuhan University, 430072, Wuhan, China
| | - Qi Liu
- College of Chemistry and Molecular Sciences, Wuhan University, 430072, Wuhan, China
| | - Qianghui Zhou
- College of Chemistry and Molecular Sciences, Wuhan University, 430072, Wuhan, China
- The Institute for Advanced Studies, Wuhan University, 430072, Wuhan, China
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424
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Yang X, Liu S, Yu S, Kong L, Lan Y, Li X. Redox-Neutral Access to Isoquinolinones via Rhodium(III)-Catalyzed Annulations of O-Pivaloyl Oximes with Ketenes. Org Lett 2018; 20:2698-2701. [DOI: 10.1021/acs.orglett.8b00906] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Xifa Yang
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Song Liu
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 400030, China
| | - Songjie Yu
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Lingheng Kong
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Yu Lan
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 400030, China
| | - Xingwei Li
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
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425
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Direct synthesis of anthracenes from o-tolualdehydes and aryl iodides through Pd(II)-Catalyzed sp C H arylation and electrophilic aromatic cyclization. Tetrahedron 2018. [DOI: 10.1016/j.tet.2018.03.006] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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426
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Wang S. Alkaloid Synthesis via Gold-Catalyzed Carbon-Carbon Bond Formation Using Enamine-type Nucleophile. Isr J Chem 2018. [DOI: 10.1002/ijch.201700045] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Shaozhong Wang
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering; Nanjing University; Nanjing 210023 P.R. China
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427
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Binnani C, Rai RK, Tyagi D, Mobin SM, Singh SK. Ligand‐Tuned C–H Bond Activation/Arylation of 2‐Arylpyridines over Pyridine‐Based
N
,
O/N
,
N
Ligated Ruthenium–Arene Complexes. Eur J Inorg Chem 2018. [DOI: 10.1002/ejic.201701446] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Chinky Binnani
- Discipline of Chemistry Indian Institute of Technology Indore Simrol 453552 Indore Madhya Pradesh India
| | - Rohit K. Rai
- Discipline of Chemistry Indian Institute of Technology Indore Simrol 453552 Indore Madhya Pradesh India
| | - Deepika Tyagi
- Discipline of Chemistry Indian Institute of Technology Indore Simrol 453552 Indore Madhya Pradesh India
| | - Shaikh M. Mobin
- Discipline of Chemistry Indian Institute of Technology Indore Simrol 453552 Indore Madhya Pradesh India
| | - Sanjay K. Singh
- Discipline of Chemistry Indian Institute of Technology Indore Simrol 453552 Indore Madhya Pradesh India
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428
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Diesel J, Finogenova AM, Cramer N. Nickel-Catalyzed Enantioselective Pyridone C–H Functionalizations Enabled by a Bulky N-Heterocyclic Carbene Ligand. J Am Chem Soc 2018. [DOI: 10.1021/jacs.8b01181] [Citation(s) in RCA: 105] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Johannes Diesel
- Laboratory of Asymmetric Catalysis and Synthesis, Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne (EPFL), 1015 Lausanne, Switzerland
| | - Anastasiia M. Finogenova
- Laboratory of Asymmetric Catalysis and Synthesis, Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne (EPFL), 1015 Lausanne, Switzerland
| | - Nicolai Cramer
- Laboratory of Asymmetric Catalysis and Synthesis, Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne (EPFL), 1015 Lausanne, Switzerland
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429
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Cis,exo-1,2,3,4,4a,13b-hexahydro-1,4-methano-5-isopropoxy-9H-tribenzo[b,f]azepine. MOLBANK 2018. [DOI: 10.3390/m988] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
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430
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Abstract
A chiral primary amine catalyzed oxidative β-C-H functionalization of ketone is described. The reaction proceeds via ketone enamine oxidation by IBX and enables highly enantioselective remote C-H functionalization of both cyclic and acyclic ketones, generating chiral ketones bearing β-stereocenters.
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Affiliation(s)
- Lihui Zhu
- Key Laboratory of Molecular Recognition and Function , Chinese Academy of Sciences , Beijing 100190 , China.,College of Chemistry and Chemical Engineering , University of Chinese Academy of Sciences , Beijing 100490 , China
| | - Long Zhang
- Key Laboratory of Molecular Recognition and Function , Chinese Academy of Sciences , Beijing 100190 , China.,College of Chemistry and Chemical Engineering , University of Chinese Academy of Sciences , Beijing 100490 , China.,Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) , Tianjin 300071 , China
| | - Sanzhong Luo
- Key Laboratory of Molecular Recognition and Function , Chinese Academy of Sciences , Beijing 100190 , China.,College of Chemistry and Chemical Engineering , University of Chinese Academy of Sciences , Beijing 100490 , China.,Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) , Tianjin 300071 , China
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431
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Lv J, Zhang Q, Cai M, Han Y, Luo S. Aromatic Aminocatalysis. Chem Asian J 2018; 13:740-753. [PMID: 29493891 DOI: 10.1002/asia.201701773] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2017] [Revised: 02/01/2018] [Indexed: 11/08/2022]
Abstract
Aromatic aminocatalysis refers to transformations that employ aromatic amines, such as anilines or aminopyridines, as catalysts. Owing to the conjugation of the amine moiety with the aromatic ring, aromatic amines demonstrate distinctive features in aminocatalysis compared with their aliphatic counterparts. For example, aromatic aminocatalysis typically proceeds with slower turnover, but is more active and conformationally rigid as a result of the stabilized aromatic imine or iminium species. In fact, the advent of aromatic aminocatalysis can be traced back to before the renaissance of organocatalysis in the early 2000s. So far, aromatic aminocatalysis has been widely applied in bioconjugation reactions through transamination; in asymmetric organocatalysis through imine/enamine tautomerization; and in cooperative catalysis with transition metals through C-H/C-C activation and functionalization. This Focus Review summarizes the advent of and major advances in the use of aromatic aminocatalysis in bioconjugation reactions and organic synthesis.
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Affiliation(s)
- Jian Lv
- Key Laboratory for Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China.,University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Qi Zhang
- Key Laboratory for Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China.,University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Mao Cai
- Key Laboratory for Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China.,University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Yanfang Han
- Key Laboratory for Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China.,University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Sanzhong Luo
- Key Laboratory for Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China.,University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
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432
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Kho YM, Shin EJ, Ahn H, Chung M, Jung S, Kwak W. The Use of Dual Catalysts to Obtain High Selectivity for di
-Styrenated Phenol in the Reaction between Styrene and Phenol. B KOREAN CHEM SOC 2018. [DOI: 10.1002/bkcs.11390] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Yong Min Kho
- Department of Chemistry; Sunchon National University; Jeonnam 57922 Republic of Korea
| | - Eun Ju Shin
- Department of Chemistry; Sunchon National University; Jeonnam 57922 Republic of Korea
| | - Hogeun Ahn
- Department of Chemical Engineering; Sunchon National University; Jeonnam 57922 Republic of Korea
| | - Minchul Chung
- Department of Chemical Engineering; Sunchon National University; Jeonnam 57922 Republic of Korea
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433
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Liang YF, Massignan L, Ackermann L. Sustainable Manganese-Catalyzed C−H Activation/Hydroarylation of Imines. ChemCatChem 2018. [DOI: 10.1002/cctc.201800144] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Yu-Feng Liang
- Institut für Organische und Biomolekulare Chemie; Georg-August-Universität Göttingen; Tammannstraße 2 37077 Göttingen Germany
| | - Leonardo Massignan
- Institut für Organische und Biomolekulare Chemie; Georg-August-Universität Göttingen; Tammannstraße 2 37077 Göttingen Germany
| | - Lutz Ackermann
- Institut für Organische und Biomolekulare Chemie; Georg-August-Universität Göttingen; Tammannstraße 2 37077 Göttingen Germany
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434
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Mokar BD, Liu J, Liu RS. Brønsted Acids Enable Three Molecular Rearrangements of One 3-Alkylidene-2H-1,2-oxazine Molecule into Distinct Heterocyles. Org Lett 2018; 20:1038-1041. [PMID: 29388779 DOI: 10.1021/acs.orglett.7b03985] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
This work describes three different strategies to structurally rearrange one 3-alkylidene-2H-1,2-oxazine molecule into three distinct heterocycles using HOTf, propiolic acid, and silica gel, respectively. The mechanisms of these rearrangement reactions involve three independent routes, including (i) Brønsted acid catalysis, (ii) a synergetic action of Brønsted acids and anions, (iii) a surface-directed chemoselectivity.
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Affiliation(s)
| | - Jinxian Liu
- Department of Chemistry, National Tsing-Hua University , Hsinchu 30013, Taiwan, ROC
| | - Rai-Shung Liu
- Department of Chemistry, National Tsing-Hua University , Hsinchu 30013, Taiwan, ROC
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435
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Cheng HG, Wu C, Chen H, Chen R, Qian G, Geng Z, Wei Q, Xia Y, Zhang J, Zhang Y, Zhou Q. Epoxides as Alkylating Reagents for the Catellani Reaction. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201800573] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Hong-Gang Cheng
- College of Chemistry and Molecular Sciences; Wuhan University; Wuhan 430072 China
| | - Chenggui Wu
- College of Chemistry and Molecular Sciences; Wuhan University; Wuhan 430072 China
| | - Han Chen
- College of Chemistry and Molecular Sciences; Wuhan University; Wuhan 430072 China
| | - Ruiming Chen
- College of Chemistry and Molecular Sciences; Wuhan University; Wuhan 430072 China
| | - Guangyin Qian
- College of Chemistry and Molecular Sciences; Wuhan University; Wuhan 430072 China
| | - Zhi Geng
- College of Chemistry and Molecular Sciences; Wuhan University; Wuhan 430072 China
| | - Qiang Wei
- College of Chemistry and Molecular Sciences; Wuhan University; Wuhan 430072 China
| | - Yuanyuan Xia
- College of Chemistry and Molecular Sciences; Wuhan University; Wuhan 430072 China
| | - Jingyang Zhang
- College of Chemistry and Molecular Sciences; Wuhan University; Wuhan 430072 China
| | - Yuming Zhang
- College of Chemistry and Molecular Sciences; Wuhan University; Wuhan 430072 China
| | - Qianghui Zhou
- College of Chemistry and Molecular Sciences; Wuhan University; Wuhan 430072 China
- The Institute for Advanced Studies; Wuhan University; Wuhan 430072 China
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436
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Cheng HG, Wu C, Chen H, Chen R, Qian G, Geng Z, Wei Q, Xia Y, Zhang J, Zhang Y, Zhou Q. Epoxides as Alkylating Reagents for the Catellani Reaction. Angew Chem Int Ed Engl 2018; 57:3444-3448. [PMID: 29368370 DOI: 10.1002/anie.201800573] [Citation(s) in RCA: 67] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2018] [Indexed: 11/11/2022]
Abstract
We report a cooperative catalytic system comprising a PdII complex, XPhos, and the potassium salt of 5-norbornene-2-carboxylic acid that enables the use of epoxides as alkylating reagents in the Catellani reaction, thereby expanding the existing paradigm of this powerful transformation. The potassium salt of inexpensive 5-norbornene-2-carboxylic acid acts as both mediator and base in the process. This mild, chemoselective, scalable, and atom-economical protocol is compatible with a wide variety of readily available functionalized aryl iodides and epoxides, as well as terminating olefins. The resulting products undergo facile oxa-Michael addition to furnish ubiquitous isochroman scaffolds.
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Affiliation(s)
- Hong-Gang Cheng
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, China
| | - Chenggui Wu
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, China
| | - Han Chen
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, China
| | - Ruiming Chen
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, China
| | - Guangyin Qian
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, China
| | - Zhi Geng
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, China
| | - Qiang Wei
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, China
| | - Yuanyuan Xia
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, China
| | - Jingyang Zhang
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, China
| | - Yuming Zhang
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, China
| | - Qianghui Zhou
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, China.,The Institute for Advanced Studies, Wuhan University, Wuhan, 430072, China
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437
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Xu Y, Dong G. sp 3 C-H activation via exo-type directing groups. Chem Sci 2018; 9:1424-1432. [PMID: 29675189 PMCID: PMC5892337 DOI: 10.1039/c7sc04768a] [Citation(s) in RCA: 171] [Impact Index Per Article: 28.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2017] [Accepted: 01/02/2018] [Indexed: 12/13/2022] Open
Abstract
The application of exo-type directing groups (DGs) has led to the discovery of a wide range of novel C(sp3)-H activation methods, which allow efficient and site-selective functionalization of alcohol and amide derivatives. In this mini-review we discuss the challenges of this field and summarize the achievements, including DG designs, reaction discoveries and mechanistic studies.
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Affiliation(s)
- Yan Xu
- Department of Chemistry , University of Chicago , Chicago , Illinois 60637 , USA .
| | - Guangbin Dong
- Department of Chemistry , University of Chicago , Chicago , Illinois 60637 , USA .
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438
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Yasuda S, Ishii T, Takemoto S, Haruki H, Ohmiya H. Synergistic N-Heterocyclic Carbene/Palladium-Catalyzed Reactions of Aldehyde Acyl Anions with either Diarylmethyl or Allylic Carbonates. Angew Chem Int Ed Engl 2018; 57:2938-2942. [DOI: 10.1002/anie.201712811] [Citation(s) in RCA: 54] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2017] [Revised: 01/16/2018] [Indexed: 11/05/2022]
Affiliation(s)
- Shigeo Yasuda
- Division of Pharmaceutical Sciences, Graduate School of Medical Sciences; Kanazawa University; Kakuma-machi Kanazawa 920-1192 Japan
| | - Takuya Ishii
- Division of Pharmaceutical Sciences, Graduate School of Medical Sciences; Kanazawa University; Kakuma-machi Kanazawa 920-1192 Japan
| | - Shunsuke Takemoto
- Division of Pharmaceutical Sciences, Graduate School of Medical Sciences; Kanazawa University; Kakuma-machi Kanazawa 920-1192 Japan
| | - Hiroki Haruki
- Division of Pharmaceutical Sciences, Graduate School of Medical Sciences; Kanazawa University; Kakuma-machi Kanazawa 920-1192 Japan
| | - Hirohisa Ohmiya
- Division of Pharmaceutical Sciences, Graduate School of Medical Sciences; Kanazawa University; Kakuma-machi Kanazawa 920-1192 Japan
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439
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Yasuda S, Ishii T, Takemoto S, Haruki H, Ohmiya H. Synergistic N-Heterocyclic Carbene/Palladium-Catalyzed Reactions of Aldehyde Acyl Anions with either Diarylmethyl or Allylic Carbonates. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201712811] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Shigeo Yasuda
- Division of Pharmaceutical Sciences, Graduate School of Medical Sciences; Kanazawa University; Kakuma-machi Kanazawa 920-1192 Japan
| | - Takuya Ishii
- Division of Pharmaceutical Sciences, Graduate School of Medical Sciences; Kanazawa University; Kakuma-machi Kanazawa 920-1192 Japan
| | - Shunsuke Takemoto
- Division of Pharmaceutical Sciences, Graduate School of Medical Sciences; Kanazawa University; Kakuma-machi Kanazawa 920-1192 Japan
| | - Hiroki Haruki
- Division of Pharmaceutical Sciences, Graduate School of Medical Sciences; Kanazawa University; Kakuma-machi Kanazawa 920-1192 Japan
| | - Hirohisa Ohmiya
- Division of Pharmaceutical Sciences, Graduate School of Medical Sciences; Kanazawa University; Kakuma-machi Kanazawa 920-1192 Japan
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440
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Dong K, Sang R, Wei Z, Liu J, Dühren R, Spannenberg A, Jiao H, Neumann H, Jackstell R, Franke R, Beller M. Cooperative catalytic methoxycarbonylation of alkenes: uncovering the role of palladium complexes with hemilabile ligands. Chem Sci 2018; 9:2510-2516. [PMID: 29732128 PMCID: PMC5912013 DOI: 10.1039/c7sc02964k] [Citation(s) in RCA: 67] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2017] [Accepted: 01/19/2018] [Indexed: 11/21/2022] Open
Abstract
Mechanistic studies of the catalyst [Pd2(dba)3/1,1′-bis(tert-butyl(pyridin-2-yl)phosphanyl)ferrocene, L2] for olefin alkoxycarbonylation reactions are described.
Mechanistic studies of the catalyst [Pd2(dba)3/1,1′-bis(tert-butyl(pyridin-2-yl)phosphanyl)ferrocene, L2] for olefin alkoxycarbonylation reactions are described. X-ray crystallography reveals the coordination of the pyridyl nitrogen atom in L2 to the palladium center of the catalytic intermediates. DFT calculations on the elementary steps of the industrially relevant carbonylation of ethylene (the Lucite α-process) indicate that the protonated pyridyl moiety is formed immediately, which facilitates the formation of the active palladium hydride complex. The insertion of ethylene and CO into this intermediate leads to the corresponding palladium acyl species, which is kinetically reversible. Notably, this key species is stabilized by the hemilabile coordination of the pyridyl nitrogen atom in L2. The rate-determining alcoholysis of the acyl palladium complex is substantially facilitated by metal–ligand cooperation. Specifically, the deprotonation of the alcohol by the built-in base of the ligand allows a facile intramolecular nucleophilic attack on the acyl palladium species concertedly. Kinetic measurements support this mechanistic proposal and show that the rate of the carbonylation step is zero-order dependent on ethylene and CO. Comparing CH3OD and CH3OH as nucleophiles suggests the involvement of (de)protonation in the rate-determining step.
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Affiliation(s)
- Kaiwu Dong
- Leibniz-Institut für Katalyse e.V. an der Universität Rostock , Albert-Einstein Straße 29a , Rostock , 18059 , Germany .
| | - Rui Sang
- Leibniz-Institut für Katalyse e.V. an der Universität Rostock , Albert-Einstein Straße 29a , Rostock , 18059 , Germany .
| | - Zhihong Wei
- Leibniz-Institut für Katalyse e.V. an der Universität Rostock , Albert-Einstein Straße 29a , Rostock , 18059 , Germany .
| | - Jie Liu
- Leibniz-Institut für Katalyse e.V. an der Universität Rostock , Albert-Einstein Straße 29a , Rostock , 18059 , Germany .
| | - Ricarda Dühren
- Leibniz-Institut für Katalyse e.V. an der Universität Rostock , Albert-Einstein Straße 29a , Rostock , 18059 , Germany .
| | - Anke Spannenberg
- Leibniz-Institut für Katalyse e.V. an der Universität Rostock , Albert-Einstein Straße 29a , Rostock , 18059 , Germany .
| | - Haijun Jiao
- Leibniz-Institut für Katalyse e.V. an der Universität Rostock , Albert-Einstein Straße 29a , Rostock , 18059 , Germany .
| | - Helfried Neumann
- Leibniz-Institut für Katalyse e.V. an der Universität Rostock , Albert-Einstein Straße 29a , Rostock , 18059 , Germany .
| | - Ralf Jackstell
- Leibniz-Institut für Katalyse e.V. an der Universität Rostock , Albert-Einstein Straße 29a , Rostock , 18059 , Germany .
| | - Robert Franke
- Evonik Performance Materials GmbH , Paul-Baumann-Str. 1 , 45772 Marl , Germany.,Lehrstuhl für Theoretische Chemie , Ruhr-Universität Bochum , 44780 Bochum , Germany
| | - Matthias Beller
- Leibniz-Institut für Katalyse e.V. an der Universität Rostock , Albert-Einstein Straße 29a , Rostock , 18059 , Germany .
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441
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Gandeepan P, Ackermann L. Transient Directing Groups for Transformative C–H Activation by Synergistic Metal Catalysis. Chem 2018. [DOI: 10.1016/j.chempr.2017.11.002] [Citation(s) in RCA: 335] [Impact Index Per Article: 55.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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442
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Xia J, Huang Z, Zhou X, Yang X, Wang F, Li X. Rh(III)-Catalyzed Acceptorless Dehydrogenative Coupling of (Hetero)arenes with 2-Carboxyl Allylic Alcohols. Org Lett 2018; 20:740-743. [DOI: 10.1021/acs.orglett.7b03881] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Jintao Xia
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Zhipeng Huang
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xukai Zhou
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xifa Yang
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Feng Wang
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Xingwei Li
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
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443
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Zhao B, Chen C, Lv J, Li Z, Yuan Y, Shi Z. Photoinduced fragmentation-rearrangement sequence of cycloketoxime esters. Org Chem Front 2018. [DOI: 10.1039/c8qo00747k] [Citation(s) in RCA: 51] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
A novel rearrangement of cycloketoxime esters to cyano-containing benzoates beyond the traditional Beckmann and Neber rearrangement process has been established in the presence of photocatalysis catalysis.
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Affiliation(s)
- Binlin Zhao
- State Key Laboratory of Coordination Chemistry
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing 210093
- China
| | - Cheng Chen
- State Key Laboratory of Coordination Chemistry
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing 210093
- China
| | - Jiahang Lv
- State Key Laboratory of Coordination Chemistry
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing 210093
- China
| | - Zexian Li
- State Key Laboratory of Coordination Chemistry
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing 210093
- China
| | - Yu Yuan
- College of Chemistry and Chemical Engineering
- Yangzhou University
- Yangzhou 225002
- China
| | - Zhuangzhi Shi
- State Key Laboratory of Coordination Chemistry
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing 210093
- China
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444
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Paplal B, Nagaraju S, Sathish K, Kashinath D. One-pot synthesis of 3-hydroxy-2-oxindole-pyridine hybrids via Hantzsch ester formation, oxidative aromatization and sp3 C H functionalization using FeWO4 nanoparticles as recyclable heterogeneous catalyst. CATAL COMMUN 2018. [DOI: 10.1016/j.catcom.2017.09.027] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
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445
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Zhang L, Zheng X, Chen J, Cheng K, Jin L, Jiang X, Yu C. Ru(ii)-Catalyzed C6-selective C–H amidation of 2-pyridones. Org Chem Front 2018. [DOI: 10.1039/c8qo00795k] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
An efficient Ru-catalyzed C6 site-selective amidation of 2-pyridones has been accomplished with dioxazolone under mild conditions.
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Affiliation(s)
- Lei Zhang
- College of Pharmaceutical Sciences
- Zhejiang University of Technology
- Hangzhou 310014
- P. R. China
| | - Xiangyun Zheng
- College of Pharmaceutical Sciences
- Zhejiang University of Technology
- Hangzhou 310014
- P. R. China
| | - Jinkang Chen
- College of Pharmaceutical Sciences
- Zhejiang University of Technology
- Hangzhou 310014
- P. R. China
| | - Kang Cheng
- College of Pharmaceutical Sciences
- Zhejiang University of Technology
- Hangzhou 310014
- P. R. China
| | - Licheng Jin
- College of Pharmaceutical Sciences
- Zhejiang University of Technology
- Hangzhou 310014
- P. R. China
| | - Xinpeng Jiang
- College of Pharmaceutical Sciences
- Zhejiang University of Technology
- Hangzhou 310014
- P. R. China
| | - Chuanming Yu
- College of Pharmaceutical Sciences
- Zhejiang University of Technology
- Hangzhou 310014
- P. R. China
- Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals
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446
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Li X, Wu H, Lang Y, Huang G. Mechanism, selectivity, and reactivity of iridium- and rhodium-catalyzed intermolecular ketone α-alkylation with unactivated olefinsviaan enamide directing strategy. Catal Sci Technol 2018. [DOI: 10.1039/c8cy00290h] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
DFT calculations were performed to investigate the title reaction, focusing on detailed reaction mechanism and origins of selectivity and reactivity.
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Affiliation(s)
- Xiaojie Li
- Department of Chemistry
- School of Science and Tianjin Key Laboratory of Molecular Optoelectronic Sciences
- Tianjin University
- Tianjin 300072
- P. R. China
| | - Hongli Wu
- Department of Chemistry
- School of Science and Tianjin Key Laboratory of Molecular Optoelectronic Sciences
- Tianjin University
- Tianjin 300072
- P. R. China
| | - Yanmin Lang
- Department of Chemistry
- School of Science and Tianjin Key Laboratory of Molecular Optoelectronic Sciences
- Tianjin University
- Tianjin 300072
- P. R. China
| | - Genping Huang
- Department of Chemistry
- School of Science and Tianjin Key Laboratory of Molecular Optoelectronic Sciences
- Tianjin University
- Tianjin 300072
- P. R. China
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447
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da Silva Júnior EN, Jardim GAM, Gomes RS, Liang YF, Ackermann L. Weakly-coordinating N-oxide and carbonyl groups for metal-catalyzed C–H activation: the case of A-ring functionalization. Chem Commun (Camb) 2018; 54:7398-7411. [DOI: 10.1039/c8cc03147a] [Citation(s) in RCA: 54] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
This feature review is focused on recent challenges based on the functionalizations at C-8 and C-5 positions of heterocyclic and quinoidal compounds – a topic that is still rarely explored in the literature.
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Affiliation(s)
| | - Guilherme A. M. Jardim
- Institute of Exact Sciences
- Department of Chemistry
- Federal University of Minas Gerais
- Belo Horizonte
- Brazil
| | - Roberto S. Gomes
- Faculty of Exact Sciences and Technologies
- Federal University of Grande Dourados
- Dourados
- Brazil
- Department of Chemistry and Chemical Biology
| | - Yu-Feng Liang
- Institut für Organische und Biomolekulare Chemie
- Georg-August-Universität Göttingen
- Gottingen 37077
- Germany
| | - Lutz Ackermann
- Institut für Organische und Biomolekulare Chemie
- Georg-August-Universität Göttingen
- Gottingen 37077
- Germany
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448
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Sawant DM, Sharma S, Pathare RS, Joshi G, Kalra S, Sukanya S, Maurya AK, Metre RK, Agnihotri VK, Khan S, Kumar R, Pardasani RT. Relay tricyclic Pd(ii)/Ag(i) catalysis: design of a four-component reaction driven by nitrene-transfer on isocyanide yields inhibitors of EGFR. Chem Commun (Camb) 2018; 54:11530-11533. [DOI: 10.1039/c8cc05845h] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
A four-component reactions promoted by Pd(ii)/Ag(i) relay catalysis paved the way for the development of a new EGFR inhibitor.
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449
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Wu W, Guo Y, Xu X, Zhou Z, Zhang X, Wu B, Yi W. One-pot regioselective synthesis of 2,4-disubstituted quinolines via copper(ii)-catalyzed cascade annulation. Org Chem Front 2018. [DOI: 10.1039/c8qo00052b] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
A copper(ii)-catalyzed cascade annulation for the one-pot synthesis of 2,4-disubstituted quinolines has been disclosed.
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Affiliation(s)
- Wenhao Wu
- Key Laboratory of Molecular Clinical Pharmacology & Fifth Affiliated Hospital
- Guangzhou Medical University
- Guangzhou
- P. R. China
| | - Yujuan Guo
- Key Laboratory of Molecular Clinical Pharmacology & Fifth Affiliated Hospital
- Guangzhou Medical University
- Guangzhou
- P. R. China
| | - Xuefeng Xu
- College of Chemistry and Pharmaceutical Engineering
- Nanyang Normal University
- Nanyang 473061
- P. R. China
| | - Zhi Zhou
- Key Laboratory of Molecular Clinical Pharmacology & Fifth Affiliated Hospital
- Guangzhou Medical University
- Guangzhou
- P. R. China
| | - Xu Zhang
- College of Chemistry and Pharmaceutical Engineering
- Nanyang Normal University
- Nanyang 473061
- P. R. China
| | - Bo Wu
- Key Laboratory of Molecular Clinical Pharmacology & Fifth Affiliated Hospital
- Guangzhou Medical University
- Guangzhou
- P. R. China
| | - Wei Yi
- Key Laboratory of Molecular Clinical Pharmacology & Fifth Affiliated Hospital
- Guangzhou Medical University
- Guangzhou
- P. R. China
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450
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Wegmann M, Henkel M, Bach T. C-H alkylation reactions of indoles mediated by Pd(ii) and norbornene: applications and recent developments. Org Biomol Chem 2018; 16:5376-5385. [PMID: 29993084 DOI: 10.1039/c8ob01025k] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
The Catellani reaction enables an ortho-C-H activation based on oxidative addition of Pd(0) and an intermediary carbopalladation of norbornene. Among its variants, the recently developed C2-selective alkylation of indoles is particular as it employs Pd(ii) as the source of palladium. This review describes the mechanistic background of this transformation. Applications in total synthesis and in the synthesis of biologically relevant molecules are illustrated and further developments of the method are discussed.
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Affiliation(s)
- Marcus Wegmann
- Department Chemie and Catalysis Research Center (CRC), Technische Universität München, Lichtenbergstr. 4, 85747 Garching, Germany.
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