251
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Liu Y, Wang QL, Chen Z, Zhou Q, Zhou CS, Xiong BQ, Zhang PL, Yang CA, Tang KW. Silver-mediated oxidative C–C bond sulfonylation/arylation of methylenecyclopropanes with sodium sulfinates: facile access to 3-sulfonyl-1,2-dihydronaphthalenes. Org Biomol Chem 2019; 17:1365-1369. [DOI: 10.1039/c8ob03045f] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
The novel AgNO3-mediated sulfonylation/arylation of a C–C σ-bond in MCPs with sodium sulfinates to synthesize 3-sulfonylated 1,2-dihydronaphthalenes is reported.
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Affiliation(s)
- Yu Liu
- Department of Chemistry and Chemical Engineering
- Hunan Institute of Science and Technology
- Yueyang 414006
- China
| | - Qiao-Lin Wang
- Department of Chemistry and Chemical Engineering
- Hunan Institute of Science and Technology
- Yueyang 414006
- China
| | - Zan Chen
- Department of Chemistry and Chemical Engineering
- Hunan Institute of Science and Technology
- Yueyang 414006
- China
| | - Quan Zhou
- Department of Chemistry and Chemical Engineering
- Hunan Institute of Science and Technology
- Yueyang 414006
- China
| | - Cong-Shan Zhou
- Department of Chemistry and Chemical Engineering
- Hunan Institute of Science and Technology
- Yueyang 414006
- China
| | - Bi-Quan Xiong
- Department of Chemistry and Chemical Engineering
- Hunan Institute of Science and Technology
- Yueyang 414006
- China
| | - Pan-Liang Zhang
- Department of Chemistry and Chemical Engineering
- Hunan Institute of Science and Technology
- Yueyang 414006
- China
| | - Chang-An Yang
- Department of Chemistry and Chemical Engineering
- Hunan Institute of Science and Technology
- Yueyang 414006
- China
| | - Ke-Wen Tang
- Department of Chemistry and Chemical Engineering
- Hunan Institute of Science and Technology
- Yueyang 414006
- China
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252
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Elwrfalli F, Esvan YJ, Robertson CM, Aïssa C. Regioselective cycloaddition of potassium alkynyltrifluoroborates with 3-azetidinones and 3-oxetanone by nickel-catalysed C–C bond activation. Chem Commun (Camb) 2019; 55:497-500. [DOI: 10.1039/c8cc09241a] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
The nickel-catalysed (4+2) cycloaddtion of potassium alkynyltrifluoroborates and 3-azetidinones and 3-oxetanone gives only one regioisomer for all alkyne substituents.
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253
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Wang J, Cai P, He Y, Liu Y, Zhong L, Ding S, Shang Y. Tuneable access to isoquinolines via a transition-metal-free C(sp3)–C(sp3) bond cleavage rearrangement reaction. Org Chem Front 2019. [DOI: 10.1039/c9qo00427k] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A novel divergent synthesis of multi-substituted isoquinolines via C(sp3)–C(sp3) bond cleavage rearrangement reactions was realized.
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Affiliation(s)
- Jian Wang
- Key Laboratory of Functional Molecular Solids
- Ministry of Education
- Anhui Laboratory of Molecule-Based Materials
- College of Chemistry and Materials Science
- Anhui Normal University
| | - Panyuan Cai
- Key Laboratory of Functional Molecular Solids
- Ministry of Education
- Anhui Laboratory of Molecule-Based Materials
- College of Chemistry and Materials Science
- Anhui Normal University
| | - Yimiao He
- College of Chemistry and Materials
- Guangxi Key Laboratory of Natural Polymer Chemistry and Physics
- Nanning Normal University
- Nanning 530001
- P. R. China
| | - Yuan Liu
- Key Laboratory of Functional Molecular Solids
- Ministry of Education
- Anhui Laboratory of Molecule-Based Materials
- College of Chemistry and Materials Science
- Anhui Normal University
| | - Ling Zhong
- Key Laboratory of Functional Molecular Solids
- Ministry of Education
- Anhui Laboratory of Molecule-Based Materials
- College of Chemistry and Materials Science
- Anhui Normal University
| | - Shumin Ding
- Key Laboratory of Functional Molecular Solids
- Ministry of Education
- Anhui Laboratory of Molecule-Based Materials
- College of Chemistry and Materials Science
- Anhui Normal University
| | - Yongjia Shang
- Key Laboratory of Functional Molecular Solids
- Ministry of Education
- Anhui Laboratory of Molecule-Based Materials
- College of Chemistry and Materials Science
- Anhui Normal University
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254
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Fan J, Wang S, Chen J, Wu M, Zhang J, Xie M. Synthesis of 2-acetyl trisubstituted furans via copper-mediated deacylation cleavage of unstrained C(sp3)–C(sp2) bonds. Org Chem Front 2019. [DOI: 10.1039/c8qo01139g] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
A copper-mediated tandem addition/cyclization/carbon–carbon cleavage reaction for the convenient synthesis of 2-acyl trisubstituted furans has been developed.
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Affiliation(s)
- Jian Fan
- Key Laboratory of Functional Molecular Solids (Ministry of Education)
- Anhui Key Laboratory of Molecular Based Materials
- College of Chemistry and Materials Science
- Anhui Normal University
- Wuhu 241002
| | - Shengke Wang
- Key Laboratory of Functional Molecular Solids (Ministry of Education)
- Anhui Key Laboratory of Molecular Based Materials
- College of Chemistry and Materials Science
- Anhui Normal University
- Wuhu 241002
| | - Jiahui Chen
- Key Laboratory of Functional Molecular Solids (Ministry of Education)
- Anhui Key Laboratory of Molecular Based Materials
- College of Chemistry and Materials Science
- Anhui Normal University
- Wuhu 241002
| | - Manyi Wu
- Key Laboratory of Functional Molecular Solids (Ministry of Education)
- Anhui Key Laboratory of Molecular Based Materials
- College of Chemistry and Materials Science
- Anhui Normal University
- Wuhu 241002
| | - Jitan Zhang
- Key Laboratory of Functional Molecular Solids (Ministry of Education)
- Anhui Key Laboratory of Molecular Based Materials
- College of Chemistry and Materials Science
- Anhui Normal University
- Wuhu 241002
| | - Meihua Xie
- Key Laboratory of Functional Molecular Solids (Ministry of Education)
- Anhui Key Laboratory of Molecular Based Materials
- College of Chemistry and Materials Science
- Anhui Normal University
- Wuhu 241002
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255
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Liu B, Cheng L, Hu P, Xu F, Li D, Gu WJ, Han W. Iron-catalyzed oxidative C–C(vinyl) σ-bond cleavage of allylarenes to aryl aldehydes at room temperature with ambient air. Chem Commun (Camb) 2019; 55:4817-4820. [DOI: 10.1039/c9cc01995b] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
The iron-catalyzed C−C single bond cleavage and oxidation of allylarenes without the assistance of heteroatoms/directing groups to produce aryl aldehydes is disclosed.
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Affiliation(s)
- Binbin Liu
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials
- Jiangsu Key Laboratory of Biofunctional Materials
- Key Laboratory of Applied Photochemistry
- School of Chemistry and Materials Science
- Nanjing Normal University
| | - Lu Cheng
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials
- Jiangsu Key Laboratory of Biofunctional Materials
- Key Laboratory of Applied Photochemistry
- School of Chemistry and Materials Science
- Nanjing Normal University
| | - Penghui Hu
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials
- Jiangsu Key Laboratory of Biofunctional Materials
- Key Laboratory of Applied Photochemistry
- School of Chemistry and Materials Science
- Nanjing Normal University
| | - Fangning Xu
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials
- Jiangsu Key Laboratory of Biofunctional Materials
- Key Laboratory of Applied Photochemistry
- School of Chemistry and Materials Science
- Nanjing Normal University
| | - Dan Li
- Hunan Provincial Key Laboratory of Materials Protection for Electric Power and Transportation
- School of Chemistry and Biological Engineering
- Changsha University of Science and Technology
- Changsha 410114
- China
| | - Wei-Jin Gu
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials
- Jiangsu Key Laboratory of Biofunctional Materials
- Key Laboratory of Applied Photochemistry
- School of Chemistry and Materials Science
- Nanjing Normal University
| | - Wei Han
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials
- Jiangsu Key Laboratory of Biofunctional Materials
- Key Laboratory of Applied Photochemistry
- School of Chemistry and Materials Science
- Nanjing Normal University
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256
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Rui KH, Shi M. Rh(i)-Catalyzed intramolecular [3 + 2] cycloaddition reactions of yne-vinylidenecyclopropanes. Org Chem Front 2019. [DOI: 10.1039/c9qo00343f] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
A Rh(i)-catalyzed intramolecular [3 + 2] cycloaddition reaction of yne-vinylidenecyclopropanes has been developed, providing fused [6.5]-bicyclic products in moderate to good yields.
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Affiliation(s)
- Kang-Hua Rui
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals
- School of Chemistry & Molecular Engineering
- East China University of Science and Technology
- Shanghai
- China
| | - Min Shi
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals
- School of Chemistry & Molecular Engineering
- East China University of Science and Technology
- Shanghai
- China
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257
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He Y, Yuan C, Jiang Z, Shuai L, Xiao Q. Expeditious Synthesis of Isoquinolone Derivatives by Rhodium(I)-Catalyzed Annulation Reaction through C–C Bond Cleavage. Org Lett 2018; 21:185-189. [DOI: 10.1021/acs.orglett.8b03653] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Yiyi He
- College of Pharmacy, Third Military Medical University, Chongqing 400038, China
| | - Chengsha Yuan
- College of Pharmacy, Third Military Medical University, Chongqing 400038, China
| | - Zeqi Jiang
- College of Pharmacy, Third Military Medical University, Chongqing 400038, China
| | - Li Shuai
- College of Pharmacy, Third Military Medical University, Chongqing 400038, China
| | - Qing Xiao
- College of Pharmacy, Third Military Medical University, Chongqing 400038, China
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258
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259
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Dalling AG, Yamauchi T, McCreanor NG, Cox L, Bower JF. Carbonylative C−C Bond Activation of Electron-Poor Cyclopropanes: Rhodium-Catalyzed (3+1+2) Cycloadditions of Cyclopropylamides. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201811460] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
| | | | | | - Lydia Cox
- School of Chemistry; University of Bristol; Bristol BS8 1TS UK
| | - John F. Bower
- School of Chemistry; University of Bristol; Bristol BS8 1TS UK
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260
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Dalling AG, Yamauchi T, McCreanor NG, Cox L, Bower JF. Carbonylative C−C Bond Activation of Electron-Poor Cyclopropanes: Rhodium-Catalyzed (3+1+2) Cycloadditions of Cyclopropylamides. Angew Chem Int Ed Engl 2018; 58:221-225. [DOI: 10.1002/anie.201811460] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2018] [Revised: 11/02/2018] [Indexed: 12/12/2022]
Affiliation(s)
| | | | | | - Lydia Cox
- School of Chemistry; University of Bristol; Bristol BS8 1TS UK
| | - John F. Bower
- School of Chemistry; University of Bristol; Bristol BS8 1TS UK
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261
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Qiu B, Li XT, Zhang JY, Zhan JL, Huang SP, Xu T. Catalytic Enantioselective Synthesis of 3,4-Polyfused Oxindoles with Quaternary All-Carbon Stereocenters: A Rh-Catalyzed C-C Activation Approach. Org Lett 2018; 20:7689-7693. [PMID: 30495964 DOI: 10.1021/acs.orglett.8b03412] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
The first Rh-catalyzed enantioselective synthesis of a 3,4-polyfused oxindole ring system enabled by carboacylation of acrylic amides based on C-C activation is reported. This transformation provides a new entry to access 3,4-polyfused oxindoles bearing quaternary stereocenters. Tri- to pentacyclic 3,4-fused oxindoles were asymmetrically generated in good yields (up to 95%) with good to excellent enantioselectivity (88%-97% ee). Application in the first total synthesis of xylanigripones A was completed in 6 steps with a 14% overall yield.
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Affiliation(s)
- Bo Qiu
- Key Laboratory of Marine Drugs, Ministry of Education; School of Medicine and Pharmacy , Ocean University of China , and Laboratory for Marine Drugs and Bioproducts of Qingdao National Laboratory for Marine Science and Technology, Qingdao 266003 , China
| | - Xiao-Tong Li
- Key Laboratory of Marine Drugs, Ministry of Education; School of Medicine and Pharmacy , Ocean University of China , and Laboratory for Marine Drugs and Bioproducts of Qingdao National Laboratory for Marine Science and Technology, Qingdao 266003 , China
| | - Jian-Yu Zhang
- Key Laboratory of Marine Drugs, Ministry of Education; School of Medicine and Pharmacy , Ocean University of China , and Laboratory for Marine Drugs and Bioproducts of Qingdao National Laboratory for Marine Science and Technology, Qingdao 266003 , China
| | - Jun-Ling Zhan
- Key Laboratory of Marine Drugs, Ministry of Education; School of Medicine and Pharmacy , Ocean University of China , and Laboratory for Marine Drugs and Bioproducts of Qingdao National Laboratory for Marine Science and Technology, Qingdao 266003 , China
| | - Shuang-Ping Huang
- Department of Chemistry & Chemical Engineering , Taiyuan University of Technology , Taiyuan 030024 , China
| | - Tao Xu
- Key Laboratory of Marine Drugs, Ministry of Education; School of Medicine and Pharmacy , Ocean University of China , and Laboratory for Marine Drugs and Bioproducts of Qingdao National Laboratory for Marine Science and Technology, Qingdao 266003 , China.,Open Studio for Druggability Research of Marine Natural Products , Qingdao National Laboratory for Marine Science and Technology , 1 Wenhai Road , Aoshanwei, Jimo, Qingdao 266237 , China
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262
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Li X, Zhang H, Hu Q, Jiang B, Zeli Y. A simple and mild Suzuki reaction protocol using triethylamine as base and solvent. SYNTHETIC COMMUN 2018. [DOI: 10.1080/00397911.2018.1519075] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Xinmin Li
- School of Pharmacy, Zunyi Medical University, Zunyi, China
| | - Hang Zhang
- School of Pharmacy, Zunyi Medical University, Zunyi, China
| | - Qinghong Hu
- School of Pharmacy, Zunyi Medical University, Zunyi, China
| | - Bo Jiang
- School of Pharmacy, Zunyi Medical University, Zunyi, China
| | - Yuan Zeli
- School of Pharmacy, Zunyi Medical University, Zunyi, China
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263
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Lv S, Xu Y, Li J. Computational study of Rh(I)-Catalyzed Cycloaddition–Fragmentation of N-cyclopropylacrylamides. Tetrahedron 2018. [DOI: 10.1016/j.tet.2018.09.034] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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264
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Werth J, Uyeda C. Cobalt-Catalyzed Reductive Dimethylcyclopropanation of 1,3-Dienes. Angew Chem Int Ed Engl 2018; 57:13902-13906. [PMID: 30144253 DOI: 10.1002/anie.201807542] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2018] [Indexed: 11/07/2022]
Abstract
Dimethylcyclopropanes are valuable synthetic targets that are challenging to access in high yield using Zn carbenoid reagents. Herein, we describe a cobalt-catalyzed variant of the Simmons-Smith reaction that enables the efficient dimethylcyclopropanation of 1,3-dienes using a Me2 CCl2 /Zn reagent mixture. The reactions proceed with high regioselectivity based on the substitution pattern of the 1,3-diene. The products are vinylcyclopropanes, which serve as substrates for transition-metal-catalyzed ring-opening reactions, including 1,3-rearrangement and [5+2] cycloaddition. Preliminary studies indicate that moderately activated monoalkenes are also amenable to dimethylcyclopropanation under the conditions of cobalt catalysis.
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Affiliation(s)
- Jacob Werth
- Department of Chemistry, Purdue University, West Lafayette, IN, 47907, USA
| | - Christopher Uyeda
- Department of Chemistry, Purdue University, West Lafayette, IN, 47907, USA
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265
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Ren JT, Wang JX, Tian H, Xu JL, Hu H, Aslam M, Sun M. Ag(I)-Catalyzed [3 + 2]-Annulation of Cyclopropenones and Formamides via C-C Bond Cleavage. Org Lett 2018; 20:6636-6639. [PMID: 30350668 DOI: 10.1021/acs.orglett.8b02612] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
An unprecedented Ag-catalyzed [3 + 2]-annulation of cyclopropenones and DMF via C-C bond cleavage is disclosed. This protocol exhibited excellent chemo- and regio-selectivity, and tolerated various functional groups. More importantly, DMF served as the C═O bond in the cycloaddition reaction, providing an efficient way to construct γ-aminobutenolides. In addition, transesterification reaction occurred when DMF was replaced by esters.
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Affiliation(s)
- Jiang-Tao Ren
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, Department of Chemistry & Materials Science , Northwest University , Xi'an 710127 , P. R. China
| | - Jia-Xin Wang
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, Department of Chemistry & Materials Science , Northwest University , Xi'an 710127 , P. R. China
| | - Hu Tian
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, Department of Chemistry & Materials Science , Northwest University , Xi'an 710127 , P. R. China
| | - Jing-Lei Xu
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, Department of Chemistry & Materials Science , Northwest University , Xi'an 710127 , P. R. China
| | - Hong Hu
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, Department of Chemistry & Materials Science , Northwest University , Xi'an 710127 , P. R. China
| | - Muhammad Aslam
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, Department of Chemistry & Materials Science , Northwest University , Xi'an 710127 , P. R. China
| | - Meng Sun
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, Department of Chemistry & Materials Science , Northwest University , Xi'an 710127 , P. R. China
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266
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Hu A, Chen Y, Guo JJ, Yu N, An Q, Zuo Z. Cerium-Catalyzed Formal Cycloaddition of Cycloalkanols with Alkenes through Dual Photoexcitation. J Am Chem Soc 2018; 140:13580-13585. [DOI: 10.1021/jacs.8b08781] [Citation(s) in RCA: 114] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Anhua Hu
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China
| | - Yilin Chen
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China
| | - Jing-Jing Guo
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China
| | - Na Yu
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China
| | - Qing An
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China
| | - Zhiwei Zuo
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China
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267
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Xu WB, Li C, Wang J. RhI
-Catalyzed Carbonylative [3+1] Construction of Cyclobutenones via C−C σ-Bond Activation of Cyclopropenes. Chemistry 2018; 24:15786-15790. [DOI: 10.1002/chem.201804170] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2018] [Indexed: 11/11/2022]
Affiliation(s)
- Wen-Bin Xu
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs; School of Chemistry and Chemical Engineering; Shanghai Jiao Tong University; 800 Dongchuan Road Shanghai 200240 P.R. China
| | - Changkun Li
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs; School of Chemistry and Chemical Engineering; Shanghai Jiao Tong University; 800 Dongchuan Road Shanghai 200240 P.R. China
| | - Jianbo Wang
- Key Laboratory of Bioorganic Chemistry and; Molecular Engineering of Ministry of Education; College of Chemistry; Peking University; Beijing 100871 China
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268
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Takano H, Ito T, Kanyiva KS, Shibata T. Regioselective Activation of a Sterically More Hindered C−C Bond of Biphenylenes Using an Alkene as Both a Directing Group and a Reaction Moiety. Chemistry 2018; 24:15173-15177. [DOI: 10.1002/chem.201804044] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2018] [Indexed: 11/05/2022]
Affiliation(s)
- Hideaki Takano
- Department of Chemistry and Biochemistry, School of Advanced Science and EngineeringWaseda University 3-4-1 Okubo, Shinjuku Tokyo 169-8555 Japan
| | - Takeharu Ito
- Department of Chemistry and Biochemistry, School of Advanced Science and EngineeringWaseda University 3-4-1 Okubo, Shinjuku Tokyo 169-8555 Japan
| | - Kyalo Stephen Kanyiva
- Global Center for Science and Engineering, School of Advanced Science and EngineeringWaseda University 3-4-1 Okubo, Shinjuku Tokyo 169-8555 Japan
| | - Takanori Shibata
- Department of Chemistry and Biochemistry, School of Advanced Science and EngineeringWaseda University 3-4-1 Okubo, Shinjuku Tokyo 169-8555 Japan
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269
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Werth J, Uyeda C. Cobalt‐Catalyzed Reductive Dimethylcyclopropanation of 1,3‐Dienes. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201807542] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Jacob Werth
- Department of ChemistryPurdue University West Lafayette IN 47907 USA
| | - Christopher Uyeda
- Department of ChemistryPurdue University West Lafayette IN 47907 USA
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270
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Yang J, Shen Y, Lim YJ, Yoshikai N. Divergent ring-opening coupling between cyclopropanols and alkynes under cobalt catalysis. Chem Sci 2018; 9:6928-6934. [PMID: 30210767 PMCID: PMC6124909 DOI: 10.1039/c8sc02074d] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2018] [Accepted: 07/13/2018] [Indexed: 12/04/2022] Open
Abstract
Cobalt-diphosphine catalysts promote ring-opening coupling reactions between cyclopropanols and unactivated internal alkynes, affording either β-alkenyl ketones or multisubstituted cyclopentenol derivatives in good yields with good to excellent regioselectivities. The chemoselectivity between these β-alkenylation and [3 + 2] annulation reactions, which likely share a cobalt homoenolate as a key catalytic intermediate, is exquisitely controlled by the reaction conditions, with the solvent being a major controlling factor. The reactions are proposed to involve ring opening of cobalt cyclopropoxide into homoenolate, migratory insertion of the alkyne into the Co-C bond, and protodemetalation or intramolecular carbonyl addition of the resulting alkenylcobalt species. The feasibility of these reaction steps was supported by DFT calculations.
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Affiliation(s)
- Junfeng Yang
- Division of Chemistry and Biological Chemistry , School of Physical and Mathematical Sciences , Nanyang Technological University , Singapore 637371 , Singapore .
| | - Yixiao Shen
- Division of Chemistry and Biological Chemistry , School of Physical and Mathematical Sciences , Nanyang Technological University , Singapore 637371 , Singapore .
| | - Yang Jie Lim
- Division of Chemistry and Biological Chemistry , School of Physical and Mathematical Sciences , Nanyang Technological University , Singapore 637371 , Singapore .
| | - Naohiko Yoshikai
- Division of Chemistry and Biological Chemistry , School of Physical and Mathematical Sciences , Nanyang Technological University , Singapore 637371 , Singapore .
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271
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Zhao X, Tu HY, Guo L, Zhu S, Qing FL, Chu L. Intermolecular selective carboacylation of alkenes via nickel-catalyzed reductive radical relay. Nat Commun 2018; 9:3488. [PMID: 30154495 PMCID: PMC6113317 DOI: 10.1038/s41467-018-05951-6] [Citation(s) in RCA: 139] [Impact Index Per Article: 23.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2018] [Accepted: 07/31/2018] [Indexed: 01/13/2023] Open
Abstract
The development of catalytic carboacylation of simple olefins, which would enable the rapid construction of ketones with high levels of complexity and diversity, is very challenging. To date, the vast majority of alkene carboacylation reactions are typically restricted to single- and two-component methodologies. Here we describe a three-component carboacylation of alkenes via the merger of radical chemistry with nickel catalysis. This reaction manifold utilizes a radical relay strategy involving radical addition to an alkene followed by alkyl radical capture by an acyl-nickel complex to forge two vicinal C-C bonds under mild conditions. Excellent chemoselectivity and regioselectivity have been achieved by utilizing a pendant weakly chelating group. This versatile protocol allows for facile access to a wide range of important β-fluoroalkyl ketones from simple starting materials.
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Affiliation(s)
- Xian Zhao
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Chemistry, Chemical Engineering and Biotechnology, Center for Advanced Low-Dimension Materials, Donghua University, Shanghai, 201620, China
| | - Hai-Yong Tu
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Chemistry, Chemical Engineering and Biotechnology, Center for Advanced Low-Dimension Materials, Donghua University, Shanghai, 201620, China
| | - Lei Guo
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Chemistry, Chemical Engineering and Biotechnology, Center for Advanced Low-Dimension Materials, Donghua University, Shanghai, 201620, China
| | - Shengqing Zhu
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Chemistry, Chemical Engineering and Biotechnology, Center for Advanced Low-Dimension Materials, Donghua University, Shanghai, 201620, China
| | - Feng-Ling Qing
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Chemistry, Chemical Engineering and Biotechnology, Center for Advanced Low-Dimension Materials, Donghua University, Shanghai, 201620, China.,Key Laboratory of Organofluorine Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Science, Shanghai, 200032, China
| | - Lingling Chu
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Chemistry, Chemical Engineering and Biotechnology, Center for Advanced Low-Dimension Materials, Donghua University, Shanghai, 201620, China.
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272
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Formal group insertion into aryl C‒N bonds through an aromaticity destruction-reconstruction process. Nat Commun 2018; 9:3423. [PMID: 30143605 PMCID: PMC6109128 DOI: 10.1038/s41467-018-05637-z] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2018] [Accepted: 07/16/2018] [Indexed: 12/01/2022] Open
Abstract
Given the abundance and the ready availability of anilines, the selective insertion of atoms into the aryl carbon–nitrogen bonds will be an appealing route for the synthesis of nitrogen-containing aromatic molecules. However, because aryl carbon–nitrogen bonds are particularly inert, anilines are normally activated by conversion to more reactive intermediates such as aryldiazonium salts to achieve functionalization of the aryl carbon–nitrogen bonds, but the nitrogen atom is usually not incorporated into products, instead being discarded. The selective insertion of groups into aryl carbon–nitrogen bonds remains an elusive challenge and an unmet need in reaction design. Here we show an aromaticity destruction-reconstruction process that selectively inserts a trimethylenemethane (TMM) group into the aromatic carbon–nitrogen bond of anilines concomitant with a benzylic carbon–hydrogen bond functionalization. This process provides a transformative mode for anilines, and the insertion products are versatile precursor to various nitrogen-containing aromatic molecules through simple conversions. Activation of C–N bonds of anilines requires transformation of the amino group into a more reactive functionality. Here, the authors report an aromaticity destruction-reconstruction process that converts abundant anilines into valuable amines through group insertion into the C–N bond and benzylic C–H functionalization.
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273
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Tran VT, Gurak JA, Yang KS, Engle KM. Activation of diverse carbon-heteroatom and carbon-carbon bonds via palladium(II)-catalysed β-X elimination. Nat Chem 2018; 10:1126-1133. [PMID: 30127512 DOI: 10.1038/s41557-018-0110-z] [Citation(s) in RCA: 60] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2017] [Accepted: 06/19/2018] [Indexed: 11/09/2022]
Abstract
Chemists' ability to synthesize structurally complex, high-value organic molecules from simple starting materials is limited by methods to selectively activate and functionalize strong alkyl C(sp3) covalent bonds. Recent activity has focused on the activation of abundant C-O, C-N and C-C bonds via a mechanistic paradigm of oxidative addition of a low-valent, electron-rich transition metal. This approach typically employs nickel(0), rhodium(I), ruthenium(0) and iron catalysts under conditions finely tuned for specific, electronically activated substrates, sometimes assisted by chelating functional groups or ring strain. By adopting a redox-neutral strategy involving palladium(II)-catalysed C-H activation followed by β-heteroatom/carbon elimination, we describe here a catalytic method to activate alkyl C(sp3)-oxygen, nitrogen, carbon, fluorine and sulfur bonds with high regioselectivity. Directed hydrofunctionalization of the resultant palladium(II)-bound alkene leads to formal functional group metathesis. The method is applied to amino acid upgrading with complete regioselectivity and moderate to high retention of enantiomeric excess. Low-strain heterocycles undergo strong-bond activation and substitution, giving ring-opened products.
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Affiliation(s)
- Van T Tran
- Department of Chemistry, The Scripps Research Institute, La Jolla, CA, USA
| | - John A Gurak
- Department of Chemistry, The Scripps Research Institute, La Jolla, CA, USA
| | - Kin S Yang
- Department of Chemistry, The Scripps Research Institute, La Jolla, CA, USA
| | - Keary M Engle
- Department of Chemistry, The Scripps Research Institute, La Jolla, CA, USA.
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274
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Serratore NA, Anderson CB, Frost GB, Hoang TG, Underwood SJ, Gemmel PM, Hardy MA, Douglas CJ. Integrating Metal-Catalyzed C-H and C-O Functionalization To Achieve Sterically Controlled Regioselectivity in Arene Acylation. J Am Chem Soc 2018; 140:10025-10033. [PMID: 29990425 DOI: 10.1021/jacs.8b06476] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
One major goal of organometallic chemists is the direct functionalization of the bonds most recurrent in organic molecules: C-H, C-C, C-O, and C-N. An even grander challenge is C-C bond formation when both precursors are of this category. Parallel to this is the synthetic goal of achieving reaction selectivity that contrasts with conventional methods. Electrophilic aromatic substitution (EAS) via Friedel-Crafts acylation is the most renowned method for the synthesis of aryl ketones, a common structural motif of many pharmaceuticals, agrochemicals, fragrances, dyes, and other commodity chemicals. However, an EAS synthetic strategy is only effective if the desired site for acylation is in accordance with the electronic-controlled regioselectivity of the reaction. Herein we report steric-controlled regioselective arene acylation with salicylate esters via iridium catalysis to access distinctly substituted benzophenones. Experimental and computational data indicate a unique reaction mechanism that integrates C-O activation and C-H activation with a single iridium catalyst without an exogenous oxidant or base. We disclose an extensive exploration of the synthetic scope of both the arene and the ester components, culminating in the concise synthesis of the potent anticancer agent hydroxyphenstatin.
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Affiliation(s)
- Nicholas A Serratore
- Department of Chemistry , University of Minnesota-Twin Cities , 207 Pleasant Street SE , Minneapolis , Minnesota 55455 , United States
| | - Constance B Anderson
- Department of Chemistry , University of Minnesota-Twin Cities , 207 Pleasant Street SE , Minneapolis , Minnesota 55455 , United States
| | - Grant B Frost
- Department of Chemistry , University of Minnesota-Twin Cities , 207 Pleasant Street SE , Minneapolis , Minnesota 55455 , United States
| | - Truong-Giang Hoang
- Department of Chemistry , University of Minnesota-Twin Cities , 207 Pleasant Street SE , Minneapolis , Minnesota 55455 , United States
| | - Steven J Underwood
- Department of Chemistry , University of Minnesota-Twin Cities , 207 Pleasant Street SE , Minneapolis , Minnesota 55455 , United States
| | - Philipp M Gemmel
- Department of Chemistry , University of Minnesota-Twin Cities , 207 Pleasant Street SE , Minneapolis , Minnesota 55455 , United States
| | - Melissa A Hardy
- Department of Chemistry , University of Minnesota-Twin Cities , 207 Pleasant Street SE , Minneapolis , Minnesota 55455 , United States
| | - Christopher J Douglas
- Department of Chemistry , University of Minnesota-Twin Cities , 207 Pleasant Street SE , Minneapolis , Minnesota 55455 , United States
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275
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Yu TY, Zheng ZJ, Dang TT, Zhang FX, Wei H. Synthesis of Acyl Azides from 1,3-Diketones via Oxidative Cleavage of Two C–C Bonds. J Org Chem 2018; 83:10589-10594. [DOI: 10.1021/acs.joc.8b01417] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Tian-Yang Yu
- Key Laboratory of Synthetic and Natural Functional Molecular Chemistry of the Ministry of Education, College of Chemistry and Materials Science, Northwest University, Xi’an 710127, P.R. China
| | - Zhao-Jing Zheng
- State Key Laboratory of Applied Organic Chemistry College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P.R. China
| | - Tong-Tong Dang
- Key Laboratory of Synthetic and Natural Functional Molecular Chemistry of the Ministry of Education, College of Chemistry and Materials Science, Northwest University, Xi’an 710127, P.R. China
| | - Fang-Xia Zhang
- Key Laboratory of Synthetic and Natural Functional Molecular Chemistry of the Ministry of Education, College of Chemistry and Materials Science, Northwest University, Xi’an 710127, P.R. China
| | - Hao Wei
- Key Laboratory of Synthetic and Natural Functional Molecular Chemistry of the Ministry of Education, College of Chemistry and Materials Science, Northwest University, Xi’an 710127, P.R. China
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276
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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 PMCID: PMC6677407 DOI: 10.1021/jacs.8b05549] [Citation(s) in RCA: 61] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [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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277
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Ambler BR, Turnbull BWH, Suravarapu SR, Uteuliyev MM, Huynh NO, Krische MJ. Enantioselective Ruthenium-Catalyzed Benzocyclobutenone-Ketol Cycloaddition: Merging C-C Bond Activation and Transfer Hydrogenative Coupling for Type II Polyketide Construction. J Am Chem Soc 2018; 140:9091-9094. [PMID: 29992811 PMCID: PMC6226000 DOI: 10.1021/jacs.8b05724] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
The first enantioselective intermolecular metal-catalyzed cycloadditions of benzocyclobutenones via C-C bond oxidative addition are described. In the presence of a ruthenium(0) complex modified by ( R)-DM-SEGPHOS, tetralone-derived ketols and benzocyclobutenones combine to form cycloadducts with complete regio- and diastereoselectivity and high enantioselectivity. Using this method, the "bay region" substructure of the angucycline natural product arenimycin was prepared.
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Affiliation(s)
- Brett R Ambler
- University of Texas at Austin , Department of Chemistry , Austin , Texas 78712 United States
| | - Ben W H Turnbull
- University of Texas at Austin , Department of Chemistry , Austin , Texas 78712 United States
| | - Sankar Rao Suravarapu
- University of Texas at Austin , Department of Chemistry , Austin , Texas 78712 United States
| | - Maulen M Uteuliyev
- University of Texas at Austin , Department of Chemistry , Austin , Texas 78712 United States
| | - Nancy O Huynh
- University of Texas at Austin , Department of Chemistry , Austin , Texas 78712 United States
| | - Michael J Krische
- University of Texas at Austin , Department of Chemistry , Austin , Texas 78712 United States
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278
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Wang YX, Ye M. Recent advances in Ni−Al bimetallic catalysis for unreactive bond transformation. Sci China Chem 2018. [DOI: 10.1007/s11426-018-9333-x] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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279
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Ren H, Du GF, Zhu B, Yang GC, Yao LS, Guan W, Su ZM. Theoretical Mechanistic Study of Nickel(0)/Lewis Acid Catalyzed Polyfluoroarylcyanation of Alkynes: Origin of Selectivity for C–CN Bond Activation. Organometallics 2018. [DOI: 10.1021/acs.organomet.8b00338] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Hang Ren
- Faculty of Chemistry, National & Local United Engineering Lab for Power Battery, Key Laboratory for UV-Emitting Materials and Technology of Ministry of Education, Northeast Normal University, Changchun 130024, P. R. China
| | - Gui-Fang Du
- Faculty of Chemistry, National & Local United Engineering Lab for Power Battery, Key Laboratory for UV-Emitting Materials and Technology of Ministry of Education, Northeast Normal University, Changchun 130024, P. R. China
| | - Bo Zhu
- Faculty of Chemistry, National & Local United Engineering Lab for Power Battery, Key Laboratory for UV-Emitting Materials and Technology of Ministry of Education, Northeast Normal University, Changchun 130024, P. R. China
| | - Guo-Chun Yang
- Faculty of Chemistry, National & Local United Engineering Lab for Power Battery, Key Laboratory for UV-Emitting Materials and Technology of Ministry of Education, Northeast Normal University, Changchun 130024, P. R. China
| | - Li-Shuang Yao
- State Key Laboratory of Applied Optics, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, P. R. China
| | - Wei Guan
- Faculty of Chemistry, National & Local United Engineering Lab for Power Battery, Key Laboratory for UV-Emitting Materials and Technology of Ministry of Education, Northeast Normal University, Changchun 130024, P. R. China
- State Key Laboratory of Applied Optics, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, P. R. China
| | - Zhong-Min Su
- Faculty of Chemistry, National & Local United Engineering Lab for Power Battery, Key Laboratory for UV-Emitting Materials and Technology of Ministry of Education, Northeast Normal University, Changchun 130024, P. R. China
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280
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Liu CH, Li F, Yuan Y, Dou M, Yu ZX. RhI
-Catalyzed Intramolecular [3+2] Cycloaddition of 1-Allene-vinylcyclopropanes. ASIAN J ORG CHEM 2018. [DOI: 10.1002/ajoc.201800294] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Cheng-Hang Liu
- Beijing National Laboratory for Molecular Sciences (BNLMS), Key Laboratory of Bioorganic Chemistry and Molecular Engineering, of Ministry of Education; College of Chemistry; Peking University; Beijing 100871 China
| | - Feng Li
- Beijing National Laboratory for Molecular Sciences (BNLMS), Key Laboratory of Bioorganic Chemistry and Molecular Engineering, of Ministry of Education; College of Chemistry; Peking University; Beijing 100871 China
| | - Yuan Yuan
- Beijing National Laboratory for Molecular Sciences (BNLMS), Key Laboratory of Bioorganic Chemistry and Molecular Engineering, of Ministry of Education; College of Chemistry; Peking University; Beijing 100871 China
| | - Meng Dou
- Beijing National Laboratory for Molecular Sciences (BNLMS), Key Laboratory of Bioorganic Chemistry and Molecular Engineering, of Ministry of Education; College of Chemistry; Peking University; Beijing 100871 China
| | - Zhi-Xiang Yu
- Beijing National Laboratory for Molecular Sciences (BNLMS), Key Laboratory of Bioorganic Chemistry and Molecular Engineering, of Ministry of Education; College of Chemistry; Peking University; Beijing 100871 China
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281
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Ravi O, Ramaraju A, Sridhar B, Bathula SR. Copper-Catalyzed Domino C−C Bond Cleavage of 2,3-Unsubstituted Indoles/Indolines and Oxindoles via
Oxidation and Directed Insertion of 2-Aminopyridines: Direct Access to Quinazolinediones. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201800536] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
- Owk Ravi
- Organic Synthesis and Process Chemistry Division; CSIR-Indian Institute of Chemical Technology; Hyderabad 500007 India
- Academy of Scientific and Innovative Research; New Delhi 110001 India
| | - Andhavaram Ramaraju
- Organic Synthesis and Process Chemistry Division; CSIR-Indian Institute of Chemical Technology; Hyderabad 500007 India
| | - Balasubramanian Sridhar
- X-ray Crystallography Division; CSIR-Indian Institute of Chemical Technology, Tarnaka; Hyderabad 500007 India
| | - Surendar Reddy Bathula
- Organic Synthesis and Process Chemistry Division; CSIR-Indian Institute of Chemical Technology; Hyderabad 500007 India
- Academy of Scientific and Innovative Research; New Delhi 110001 India
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282
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Verdugo F, Villarino L, Durán J, Gulías M, Mascareñas JL, López F. Enantioselective Palladium-Catalyzed [3C + 2C] and [4C + 3C] Intramolecular Cycloadditions of Alkylidenecyclopropanes. ACS Catal 2018. [DOI: 10.1021/acscatal.8b01296] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Felipe Verdugo
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CiQUS) and Departamento de Química Orgánica, Universidad de Santiago de Compostela, 15782, Santiago de Compostela, Spain
| | - Lara Villarino
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CiQUS) and Departamento de Química Orgánica, Universidad de Santiago de Compostela, 15782, Santiago de Compostela, Spain
| | - Juan Durán
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CiQUS) and Departamento de Química Orgánica, Universidad de Santiago de Compostela, 15782, Santiago de Compostela, Spain
| | - Moisés Gulías
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CiQUS) and Departamento de Química Orgánica, Universidad de Santiago de Compostela, 15782, Santiago de Compostela, Spain
| | - José L. Mascareñas
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CiQUS) and Departamento de Química Orgánica, Universidad de Santiago de Compostela, 15782, Santiago de Compostela, Spain
| | - Fernando López
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CiQUS) and Departamento de Química Orgánica, Universidad de Santiago de Compostela, 15782, Santiago de Compostela, Spain
- Instituto de Química Orgánica General CSIC, Juan de la Cierva 3, 28006, Madrid, Spain
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283
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Theoretical insight into the mechanisms of palladium-catalyzed intramolecular insertion of alkenes into the carbon-nitrogen bond of β-lactam. J Organomet Chem 2018. [DOI: 10.1016/j.jorganchem.2017.12.036] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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284
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Cao T, Kong Y, Luo K, Chen L, Zhu S. Cascade Claisen Rearrangement: Rapid Synthesis of Polysubstituted Salicylaldehydes and Total Syntheses of Hemigossypol and Gossypol. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201801612] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Tongxiang Cao
- School of Chemistry and Chemical Engineering South China University of Technology Guangzhou 510640 China
| | - Yi Kong
- School of Chemistry and Chemical Engineering South China University of Technology Guangzhou 510640 China
| | - Kui Luo
- School of Chemistry and Chemical Engineering South China University of Technology Guangzhou 510640 China
| | - Lianfen Chen
- School of Chemistry and Chemical Engineering South China University of Technology Guangzhou 510640 China
| | - Shifa Zhu
- School of Chemistry and Chemical Engineering South China University of Technology Guangzhou 510640 China
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285
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Cao T, Kong Y, Luo K, Chen L, Zhu S. Cascade Claisen Rearrangement: Rapid Synthesis of Polysubstituted Salicylaldehydes and Total Syntheses of Hemigossypol and Gossypol. Angew Chem Int Ed Engl 2018; 57:8702-8707. [DOI: 10.1002/anie.201801612] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2018] [Revised: 03/11/2018] [Indexed: 12/29/2022]
Affiliation(s)
- Tongxiang Cao
- School of Chemistry and Chemical Engineering South China University of Technology Guangzhou 510640 China
| | - Yi Kong
- School of Chemistry and Chemical Engineering South China University of Technology Guangzhou 510640 China
| | - Kui Luo
- School of Chemistry and Chemical Engineering South China University of Technology Guangzhou 510640 China
| | - Lianfen Chen
- School of Chemistry and Chemical Engineering South China University of Technology Guangzhou 510640 China
| | - Shifa Zhu
- School of Chemistry and Chemical Engineering South China University of Technology Guangzhou 510640 China
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286
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Onodera S, Ishikawa S, Kochi T, Kakiuchi F. Direct Alkenylation of Allylbenzenes via Chelation-Assisted C–C Bond Cleavage. J Am Chem Soc 2018; 140:9788-9792. [DOI: 10.1021/jacs.8b03718] [Citation(s) in RCA: 60] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- Shunsuke Onodera
- Department of Chemistry, Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi,
Kohoku-ku, Yokohama, Kanagawa 223-8522, Japan
| | - Soya Ishikawa
- Department of Chemistry, Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi,
Kohoku-ku, Yokohama, Kanagawa 223-8522, Japan
| | - Takuya Kochi
- Department of Chemistry, Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi,
Kohoku-ku, Yokohama, Kanagawa 223-8522, Japan
| | - Fumitoshi Kakiuchi
- Department of Chemistry, Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi,
Kohoku-ku, Yokohama, Kanagawa 223-8522, Japan
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287
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Liu Y, Feng S, Bao X. Computational Insights into the Gold-Catalyzed Ring-Opening of Methylenecyclopropanes and Vinylcyclopropanes with Sulfonamides. ChemCatChem 2018. [DOI: 10.1002/cctc.201800237] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Yuan Liu
- College of Chemistry, Chemical Engineering and Materials Science; Soochow University; 199 Ren-Ai Road Suzhou Industrial Park Suzhou, Jiangsu 215123 P.R. China
| | - Sidi Feng
- College of Chemistry, Chemical Engineering and Materials Science; Soochow University; 199 Ren-Ai Road Suzhou Industrial Park Suzhou, Jiangsu 215123 P.R. China
| | - Xiaoguang Bao
- College of Chemistry, Chemical Engineering and Materials Science; Soochow University; 199 Ren-Ai Road Suzhou Industrial Park Suzhou, Jiangsu 215123 P.R. China
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288
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Kawaguchi Y, Nagata A, Kurokawa K, Yokosawa H, Mukai C. Rhodium(I)-Catalyzed Ring-Closing Reaction of Allene-Alkene-Alkynes: One-Step Construction of Tricyclo[6.4.0.0 2,6 ] and Bicyclo[6.3.0] Skeletons from Linear Carbon Chains. Chemistry 2018. [PMID: 29536578 DOI: 10.1002/chem.201801239] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Treatment of dodecatrienyne derivatives with [RhCl(CO)2 ]2 in refluxing toluene effected the cycloisomerization to produce tricyclo[6.4.0.02,6 ]dodecadienes. The one-carbon shortened undecatrienyne derivatives, however, afforded bicyclo[6.3.0]undecatriene derivatives instead of tricyclic compounds, the latter of which are well known as a basic skeleton of naturally occurring octanoids. On the basis of two experiments with deuterated substrates, a plausible reaction mechanism for the construction of these products was proposed.
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Affiliation(s)
- Yasuaki Kawaguchi
- Division of Pharmaceutical Sciences, Graduate School of Medical Sciences, Kanazawa University, Kakuma-machi, Kanazawa, 920-1192, Japan
| | - Asami Nagata
- Division of Pharmaceutical Sciences, Graduate School of Medical Sciences, Kanazawa University, Kakuma-machi, Kanazawa, 920-1192, Japan
| | - Kei Kurokawa
- Division of Pharmaceutical Sciences, Graduate School of Medical Sciences, Kanazawa University, Kakuma-machi, Kanazawa, 920-1192, Japan
| | - Haruna Yokosawa
- Division of Pharmaceutical Sciences, Graduate School of Medical Sciences, Kanazawa University, Kakuma-machi, Kanazawa, 920-1192, Japan
| | - Chisato Mukai
- Division of Pharmaceutical Sciences, Graduate School of Medical Sciences, Kanazawa University, Kakuma-machi, Kanazawa, 920-1192, Japan
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289
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Wang X, He D, Huang Y, Fan Q, Wu W, Jiang H. Copper-Catalyzed Synthesis of Substituted Quinazolines from Benzonitriles and 2-Ethynylanilines via Carbon-Carbon Bond Cleavage Using Molecular Oxygen. J Org Chem 2018; 83:5458-5466. [PMID: 29687708 DOI: 10.1021/acs.joc.8b00378] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
A copper-catalyzed process for the synthesis of substituted quinazolines from benzonitriles and 2-ethynylanilines using molecular oxygen (O2) as sole oxidant is described. The mild catalytic system enabled the effective cleavage of the C-C triple bond and construction of new C-N and C-C bonds in one operation. Furthermore, the compound N, N-dimethyl-4-(2-(4-(trifluoromethyl)phenyl)quinazolin-4-yl)aniline (3dj) exhibited obvious aggregation-induced emission phenomenon, and the fluorescence quantum yield (ΦF,film) and lifetime (τfilm) were measured to be 45.5% and 5.8 ns in thin films state, respectively.
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Affiliation(s)
- Xu Wang
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering , South China University of Technology , Guangzhou 510640 , China
| | - Dandan He
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering , South China University of Technology , Guangzhou 510640 , China
| | - Yubing Huang
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering , South China University of Technology , Guangzhou 510640 , China
| | - Qihang Fan
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering , South China University of Technology , Guangzhou 510640 , China
| | - Wanqing Wu
- State Key Laboratory of Luminescent Materials and Devices , South China University of Technology , Guangzhou 510640 , China.,Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering , South China University of Technology , Guangzhou 510640 , China
| | - Huanfeng Jiang
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering , South China University of Technology , Guangzhou 510640 , China
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290
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Zhao W, Gao F, Zhao D. Intermolecular σ‐Bond Cross‐Exchange Reaction between Cyclopropenones and (Benzo)silacyclobutanes: Straightforward Access towards Sila(benzo)cycloheptenones. Angew Chem Int Ed Engl 2018; 57:6329-6332. [DOI: 10.1002/anie.201803156] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2018] [Indexed: 01/29/2023]
Affiliation(s)
- Wen‐Tao Zhao
- State Key Laboratory and Institute of Elemento-Organic Chemistry College of Chemistry Nankai University 94 Weijin Road Tianjin 300071 China
| | - Fang Gao
- State Key Laboratory and Institute of Elemento-Organic Chemistry College of Chemistry Nankai University 94 Weijin Road Tianjin 300071 China
| | - Dongbing Zhao
- State Key Laboratory and Institute of Elemento-Organic Chemistry College of Chemistry Nankai University 94 Weijin Road Tianjin 300071 China
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291
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Zhao W, Gao F, Zhao D. Intermolecular σ‐Bond Cross‐Exchange Reaction between Cyclopropenones and (Benzo)silacyclobutanes: Straightforward Access towards Sila(benzo)cycloheptenones. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201803156] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Wen‐Tao Zhao
- State Key Laboratory and Institute of Elemento-Organic Chemistry College of Chemistry Nankai University 94 Weijin Road Tianjin 300071 China
| | - Fang Gao
- State Key Laboratory and Institute of Elemento-Organic Chemistry College of Chemistry Nankai University 94 Weijin Road Tianjin 300071 China
| | - Dongbing Zhao
- State Key Laboratory and Institute of Elemento-Organic Chemistry College of Chemistry Nankai University 94 Weijin Road Tianjin 300071 China
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292
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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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293
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Liu Y, Ogunlana AA, Bao X. Mechanistic insights into Pd(0)-catalyzed intermolecular and intramolecular hydroamination of methylenecyclopropanes: a computational study. Dalton Trans 2018; 47:5660-5669. [PMID: 29623974 DOI: 10.1039/c8dt00131f] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
The mechanisms of transition metal-catalyzed methylenecyclopropanes (MCPs)-involved reactions are rather complicated due to the diverse pathways for the activation of MCPs. Herein, computational studies were carried out to investigate the detailed mechanisms of Pd(0)-catalyzed intermolecular and intramolecular hydroamination of MCPs. The initial activation of the three-membered ring of MCPs readily occurs via the insertion of Pd(0) into the distal C-C bond, leading to a metallacyclobutane intermediate. The commonly proposed oxidative addition of amine/amide nucleophile (Nu-H) onto the Pd(0) center to afford a hydrido-Pd(ii) complex, however, is less favorable in comparison with the Pd(0)-mediated cleavage of the distal C-C bond of MCPs. Subsequently, for the Pd(0)-catalyzed intermolecular hydroamination of 1,1-diphenyl MCP with 2-pyrrolidone, it is more favorable for the C1 of the metallacyclobutane intermediate to undergo protonation to yield a π-allylpalladium intermediate, from which the final allylamine product is afforded via reductive elimination. For the Pd(0)-catalyzed intramolecular hydroamination of aniline-tethered MCP, the intramolecular nucleophilic attack of the amine moiety to C3/C4 of the corresponding metallacyclobutane intermediate is preferable to generate a cyclic intermediate. Subsequent proton transfer steps could occur to complete the hydroamination reaction. The different pKa values of the N-H bonds of amide/amine are mainly responsible for the mechanistic difference in the Pd(0)-catalyzed hydroamination of MCPs.
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Affiliation(s)
- Yuan Liu
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, 199 Ren-Ai Road, Suzhou Industrial Park, Suzhou, Jiangsu 215123, China.
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294
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Kawaguchi Y, Yabushita K, Mukai C. Rhodium(I)-Catalyzed Cycloisomerization of Homopropargylallene-Alkynes through C(sp 3 )-C(sp) Bond Activation. Angew Chem Int Ed Engl 2018; 57:4707-4711. [PMID: 29359501 DOI: 10.1002/anie.201713096] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2017] [Indexed: 11/08/2022]
Abstract
Upon exposure to a catalytic amount of [RhCl(CO)2 ]2 in 1,4-dioxane, homopropargylallene-alkynes underwent a novel cycloisomerization accompanied by the migration of the alkyne moiety of the homopropargyl functional group to produce six/five/five tricyclic compounds in good yields. A plausible mechanism was proposed on the basis of an experiment with 13 C-labeled substrate. The resulting tricyclic derivatives were further converted into the corresponding bicyclo[3.3.0] skeletons with vicinal cis dihydroxy groups.
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Affiliation(s)
- Yasuaki Kawaguchi
- Division of Pharmaceutical Sciences, Graduate School of Medical Sciences, Kanazawa University, Kakuma-machi, Kanazawa, 920-1192, Japan
| | - Kenya Yabushita
- Division of Pharmaceutical Sciences, Graduate School of Medical Sciences, Kanazawa University, Kakuma-machi, Kanazawa, 920-1192, Japan
| | - Chisato Mukai
- Division of Pharmaceutical Sciences, Graduate School of Medical Sciences, Kanazawa University, Kakuma-machi, Kanazawa, 920-1192, Japan
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295
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Sato H, Turnbull BWH, Fukaya K, Krische MJ. Ruthenium(0)-Catalyzed Cycloaddition of 1,2-Diols, Ketols, or Diones via Alcohol-Mediated Hydrogen Transfer. Angew Chem Int Ed Engl 2018; 57:3012-3021. [PMID: 29068505 PMCID: PMC5842109 DOI: 10.1002/anie.201709916] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2017] [Indexed: 02/01/2023]
Abstract
Merging the characteristics of transfer hydrogenation and carbonyl addition, a broad new class of ruthenium(0)-catalyzed cycloadditions has been developed. As discussed in this Minireview, fused or bridged bicyclic ring systems are accessible in a redox-independent manner in C-C bond-forming hydrogen transfer reactions of diols, α-ketols, or 1,2-diones with diverse unsaturated reactants.
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Affiliation(s)
- Hiroki Sato
- University of Texas at Austin, Department of Chemistry, Welch Hall (A5300), 105 E 24th St., Austin, TX, 78712, USA
| | - Ben W H Turnbull
- University of Texas at Austin, Department of Chemistry, Welch Hall (A5300), 105 E 24th St., Austin, TX, 78712, USA
| | - Keisuke Fukaya
- University of Texas at Austin, Department of Chemistry, Welch Hall (A5300), 105 E 24th St., Austin, TX, 78712, USA
| | - Michael J Krische
- University of Texas at Austin, Department of Chemistry, Welch Hall (A5300), 105 E 24th St., Austin, TX, 78712, USA
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296
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Cheng G, Lv W, Kuai C, Wen S, Xiao S. Base-promoted amide synthesis from aliphatic amines and ynones as acylation agents through C-C bond cleavage. Chem Commun (Camb) 2018; 54:1726-1729. [PMID: 29376172 DOI: 10.1039/c7cc09310a] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
A new protocol for the synthesis of amides via base-promoted cleavage of the C(sp)-C(CO) bond of ynones with aliphatic primary and secondary amines under transition-metal-, ligand-, and oxidant-free conditions has been developed. This method exhibits a wide substrate scope, high functional group tolerance and exclusive chemoselectivity, as well as mild reaction conditions.
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Affiliation(s)
- Guolin Cheng
- College of Materials Science & Engineering, Huaqiao University, Xiamen 361021, China.
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297
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Deng L, Jin L, Dong G. Fused-Ring Formation by an Intramolecular "Cut-and-Sew" Reaction between Cyclobutanones and Alkynes. Angew Chem Int Ed Engl 2018; 57:2702-2706. [PMID: 29338109 PMCID: PMC5849476 DOI: 10.1002/anie.201712487] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2017] [Revised: 01/03/2017] [Indexed: 11/10/2022]
Abstract
The development of a catalytic intramolecular "cut-and-sew" transformation between cyclobutanones and alkynes to construct cyclohexenone-fused rings is described herein. The challenge arises from the need for selective coupling at the more sterically hindered proximal position, and can be addressed by using an electron-rich, but less bulky, phosphine ligand. The control experiment and 13 C-labelling study suggest that the reaction may start with cleavage of the less hindered distal C-C bond of cyclobutanones, followed by decarbonylation and CO reinsertion to enable Rh insertion at the more hindered proximal position.
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Affiliation(s)
- Lin Deng
- Department of Chemistry, University of Chicago, Chicago, IL, 60637, USA
| | - Likun Jin
- Department of Chemistry, University of Chicago, Chicago, IL, 60637, USA
- College of Chemical Engineering, Nanjing University of Science & Technology, Nanjing, 210094, P. R. China
| | - Guangbin Dong
- Department of Chemistry, University of Chicago, Chicago, IL, 60637, USA
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298
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Kawaguchi Y, Yabushita K, Mukai C. Rhodium(I)‐Catalyzed Cycloisomerization of Homopropargylallene‐Alkynes through C(sp
3
)−C(sp) Bond Activation. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201713096] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Yasuaki Kawaguchi
- Division of Pharmaceutical Sciences, Graduate School of Medical Sciences Kanazawa University Kakuma-machi Kanazawa 920-1192 Japan
| | - Kenya Yabushita
- Division of Pharmaceutical Sciences, Graduate School of Medical Sciences Kanazawa University Kakuma-machi Kanazawa 920-1192 Japan
| | - Chisato Mukai
- Division of Pharmaceutical Sciences, Graduate School of Medical Sciences Kanazawa University Kakuma-machi Kanazawa 920-1192 Japan
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299
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Sun T, Zhang Y, Qiu B, Wang Y, Qin Y, Dong G, Xu T. Rhodium(I)-Catalyzed Carboacylation/Aromatization Cascade Initiated by Regioselective C-C Activation of Benzocyclobutenones. Angew Chem Int Ed Engl 2018; 57:2859-2863. [PMID: 29360217 DOI: 10.1002/anie.201713179] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2017] [Revised: 01/19/2018] [Indexed: 12/21/2022]
Abstract
Described here is the first example of a rhodium-catalyzed carboacylation/aromatization cascade of a C=O bond by C-C activation. In this transformation, a reactive rhodaindanone complex is regioselectively generated and adds across a C=O bond with subsequent elimination, thus providing a unique strategy to access a multisubstituted benzofuran scaffold. A diverse range of benzofuran analogues were obtained in good yields. Mechanistic studies show a tricyclic lactone was a viable intermediate. Application of this methodology to the total synthesis of C13-deOH-viniferifuran and C13-deOH-diptoindonesin G was achieved.
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Affiliation(s)
- Tianwen Sun
- Key Laboratory of Marine Drugs Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Laboratory for Marine Drugs and Bioproducts, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266003, China
| | - Yuna Zhang
- Key Laboratory of Marine Drugs Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Laboratory for Marine Drugs and Bioproducts, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266003, China
| | - Bo Qiu
- Key Laboratory of Marine Drugs Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Laboratory for Marine Drugs and Bioproducts, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266003, China
| | - Yafei Wang
- Key Laboratory of Marine Drugs Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Laboratory for Marine Drugs and Bioproducts, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266003, China
| | - Yuting Qin
- Key Laboratory of Marine Drugs Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Laboratory for Marine Drugs and Bioproducts, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266003, China
| | - Guangbin Dong
- Department of Chemistry, University of Chicago, Chicago, IL, 60637, USA
| | - Tao Xu
- Key Laboratory of Marine Drugs Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Laboratory for Marine Drugs and Bioproducts, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266003, China
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300
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Sun T, Zhang Y, Qiu B, Wang Y, Qin Y, Dong G, Xu T. Rhodium(I)-Catalyzed Carboacylation/Aromatization Cascade Initiated by Regioselective C−C Activation of Benzocyclobutenones. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201713179] [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)
- Tianwen Sun
- Key Laboratory of Marine Drugs Ministry of Education; School of Medicine and Pharmacy, Ocean University of China; Laboratory for Marine Drugs and Bioproducts; Qingdao National Laboratory for Marine Science and Technology; Qingdao 266003 China
| | - Yuna Zhang
- Key Laboratory of Marine Drugs Ministry of Education; School of Medicine and Pharmacy, Ocean University of China; Laboratory for Marine Drugs and Bioproducts; Qingdao National Laboratory for Marine Science and Technology; Qingdao 266003 China
| | - Bo Qiu
- Key Laboratory of Marine Drugs Ministry of Education; School of Medicine and Pharmacy, Ocean University of China; Laboratory for Marine Drugs and Bioproducts; Qingdao National Laboratory for Marine Science and Technology; Qingdao 266003 China
| | - Yafei Wang
- Key Laboratory of Marine Drugs Ministry of Education; School of Medicine and Pharmacy, Ocean University of China; Laboratory for Marine Drugs and Bioproducts; Qingdao National Laboratory for Marine Science and Technology; Qingdao 266003 China
| | - Yuting Qin
- Key Laboratory of Marine Drugs Ministry of Education; School of Medicine and Pharmacy, Ocean University of China; Laboratory for Marine Drugs and Bioproducts; Qingdao National Laboratory for Marine Science and Technology; Qingdao 266003 China
| | - Guangbin Dong
- Department of Chemistry; University of Chicago; Chicago IL 60637 USA
| | - Tao Xu
- Key Laboratory of Marine Drugs Ministry of Education; School of Medicine and Pharmacy, Ocean University of China; Laboratory for Marine Drugs and Bioproducts; Qingdao National Laboratory for Marine Science and Technology; Qingdao 266003 China
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