51
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Mfuh AM, Nguyen VT, Chhetri B, Burch JE, Doyle JD, Nesterov VN, Arman HD, Larionov OV. Additive- and Metal-Free, Predictably 1,2- and 1,3-Regioselective, Photoinduced Dual C-H/C-X Borylation of Haloarenes. J Am Chem Soc 2016; 138:8408-11. [PMID: 27347688 PMCID: PMC4958914 DOI: 10.1021/jacs.6b05436] [Citation(s) in RCA: 98] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
We report herein a simple, additive- and metal-free, photoinduced, dual C-H/C-X borylation of chloro-, bromo-, and iodoarenes. The reaction produces 1,2- and 1,3-diborylarenes on gram scales under batch and continuous flow conditions. The regioselectivity of the dual C-H/C-X borylation is determined by the solvent and the substituents in the parent haloarenes.
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Affiliation(s)
- Adelphe M. Mfuh
- Department of Chemistry, University of Texas at San Antonio, San Antonio, Texas 78249, United States
| | - Vu T. Nguyen
- Department of Chemistry, University of Texas at San Antonio, San Antonio, Texas 78249, United States
| | - Bhuwan Chhetri
- Department of Chemistry, University of Texas at San Antonio, San Antonio, Texas 78249, United States
| | - Jessica E. Burch
- Department of Chemistry, University of Texas at San Antonio, San Antonio, Texas 78249, United States
| | - John D. Doyle
- Department of Chemistry, University of Texas at San Antonio, San Antonio, Texas 78249, United States
| | - Vladimir N. Nesterov
- Department of Chemistry, University of North Texas, Denton, Texas 76201, United States
| | - Hadi D. Arman
- Department of Chemistry, University of Texas at San Antonio, San Antonio, Texas 78249, United States
| | - Oleg V. Larionov
- Department of Chemistry, University of Texas at San Antonio, San Antonio, Texas 78249, United States
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52
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Yamamoto Y, Matsubara H, Yorimitsu H, Osuka A. Base-Free Palladium-Catalyzed Borylation of Aryl Chlorides with Diborons. ChemCatChem 2016. [DOI: 10.1002/cctc.201600456] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Yutaro Yamamoto
- Department of Chemistry, Graduate School of Science; Kyoto University, Sakyo-ku; Kyoto 606-8502 Japan
| | - Hiroshi Matsubara
- Department of Chemistry, Graduate School of Science; Osaka Prefecture University, Naka-ku; Sakai 599-8531 Japan
| | - Hideki Yorimitsu
- Department of Chemistry, Graduate School of Science; Kyoto University, Sakyo-ku; Kyoto 606-8502 Japan
| | - Atsuhiro Osuka
- Department of Chemistry, Graduate School of Science; Kyoto University, Sakyo-ku; Kyoto 606-8502 Japan
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53
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Maeda S, Harabuchi Y, Takagi M, Taketsugu T, Morokuma K. Artificial Force Induced Reaction (AFIR) Method for Exploring Quantum Chemical Potential Energy Surfaces. CHEM REC 2016; 16:2232-2248. [DOI: 10.1002/tcr.201600043] [Citation(s) in RCA: 94] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2016] [Indexed: 12/25/2022]
Affiliation(s)
- Satoshi Maeda
- Department of Chemistry, Faculty of Science; Hokkaido University; Sapporo 060-0810 Japan
| | - Yu Harabuchi
- Department of Chemistry, Faculty of Science; Hokkaido University; Sapporo 060-0810 Japan
| | - Makito Takagi
- Graduate School of Chemical Sciences and Engineering; Hokkaido University; Sapporo 060-8628 Japan
| | - Tetsuya Taketsugu
- Department of Chemistry, Faculty of Science; Hokkaido University; Sapporo 060-0810 Japan
| | - Keiji Morokuma
- Fukui Institute for Fundamental Chemistry, Kyoto University; Kyoto 606-8103 Japan
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54
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Chen K, Zhang S, He P, Li P. Efficient metal-free photochemical borylation of aryl halides under batch and continuous-flow conditions. Chem Sci 2016; 7:3676-3680. [PMID: 30008997 PMCID: PMC6008923 DOI: 10.1039/c5sc04521e] [Citation(s) in RCA: 127] [Impact Index Per Article: 15.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2015] [Accepted: 01/30/2016] [Indexed: 12/15/2022] Open
Abstract
A rapid, chemoselective and metal-free C-B bond-forming reaction of aryl iodides and bromides in aqueous solution at low temperatures was discovered. This reaction is amenable to batch and continuous-flow conditions and shows exceptional functional group tolerance and broad substrate scope regarding both the aryl halide and the borylating reagent. Initial mechanistic experiments indicated a photolytically generated aryl radical as the key intermediate.
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Affiliation(s)
- Kai Chen
- Center for Organic Chemistry , Frontier Institute of Science and Technology (FIST) , Xi'an Jiaotong University , 99 Yanxiang Road , Xi'an , Shaanxi 710054 , China .
| | - Shuai Zhang
- Center for Organic Chemistry , Frontier Institute of Science and Technology (FIST) , Xi'an Jiaotong University , 99 Yanxiang Road , Xi'an , Shaanxi 710054 , China .
| | - Pei He
- Center for Organic Chemistry , Frontier Institute of Science and Technology (FIST) , Xi'an Jiaotong University , 99 Yanxiang Road , Xi'an , Shaanxi 710054 , China .
| | - Pengfei Li
- Center for Organic Chemistry , Frontier Institute of Science and Technology (FIST) , Xi'an Jiaotong University , 99 Yanxiang Road , Xi'an , Shaanxi 710054 , China .
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55
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Mfuh AM, Doyle JD, Chhetri B, Arman HD, Larionov OV. Scalable, Metal- and Additive-Free, Photoinduced Borylation of Haloarenes and Quaternary Arylammonium Salts. J Am Chem Soc 2016; 138:2985-8. [PMID: 26914533 PMCID: PMC4974080 DOI: 10.1021/jacs.6b01376] [Citation(s) in RCA: 209] [Impact Index Per Article: 26.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
We report herein a simple, metal- and additive-free, photoinduced borylation of haloarenes, including electron-rich fluoroarenes, as well as arylammonium salts directly to boronic acids. This borylation method has a broad scope and functional group tolerance. We show that it can be further extended to boronic esters and carried out on gram scale as well as under flow conditions.
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Affiliation(s)
- Adelphe M. Mfuh
- Department of Chemistry, The University of Texas at San Antonio, San Antonio, Texas 78249, United States
| | - John D. Doyle
- Department of Chemistry, The University of Texas at San Antonio, San Antonio, Texas 78249, United States
| | - Bhuwan Chhetri
- Department of Chemistry, The University of Texas at San Antonio, San Antonio, Texas 78249, United States
| | - Hadi D. Arman
- Department of Chemistry, The University of Texas at San Antonio, San Antonio, Texas 78249, United States
| | - Oleg V. Larionov
- Department of Chemistry, The University of Texas at San Antonio, San Antonio, Texas 78249, United States
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56
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Ota Y, Ruiz-Barragan S, Machida M, Shiga M. A screened automated structural search with semiempirical methods. Chem Phys Lett 2016. [DOI: 10.1016/j.cplett.2016.02.013] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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57
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Chen K, Cheung MS, Lin Z, Li P. Metal-free borylation of electron-rich aryl (pseudo)halides under continuous-flow photolytic conditions. Org Chem Front 2016. [DOI: 10.1039/c6qo00109b] [Citation(s) in RCA: 78] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A photochemical borylation of electron-rich aryl (pseudo)halides via a triplet aryl cation mechanism has been described.
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Affiliation(s)
- Kai Chen
- Center for Organic Chemistry
- Frontier Institute of Science and Technology (FIST) and Frontier Institute of Chemistry
- Xi'an Jiaotong University
- Xi'an
- China
| | - Man Sing Cheung
- Department of Chemistry
- The Hong Kong University of Science and Technology
- Kowloon
- China
| | - Zhenyang Lin
- Department of Chemistry
- The Hong Kong University of Science and Technology
- Kowloon
- China
| | - Pengfei Li
- Center for Organic Chemistry
- Frontier Institute of Science and Technology (FIST) and Frontier Institute of Chemistry
- Xi'an Jiaotong University
- Xi'an
- China
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58
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Mita T, Suga K, Sato K, Sato Y. A Strained Disilane-Promoted Carboxylation of Organic Halides with CO2 under Transition-Metal-Free Conditions. Org Lett 2015; 17:5276-9. [DOI: 10.1021/acs.orglett.5b02645] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Tsuyoshi Mita
- Faculty
of Pharmaceutical Sciences, Hokkaido University, Sapporo 060-0812, Japan
| | - Kenta Suga
- Faculty
of Pharmaceutical Sciences, Hokkaido University, Sapporo 060-0812, Japan
| | - Kaori Sato
- Faculty
of Pharmaceutical Sciences, Hokkaido University, Sapporo 060-0812, Japan
| | - Yoshihiro Sato
- Faculty
of Pharmaceutical Sciences, Hokkaido University, Sapporo 060-0812, Japan
- ACT-C, Japan Science
and Technology Agency (JST), Sapporo 060-0812, Japan
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59
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Wang DY, Minami H, Wang C, Uchiyama M. A DFT Study on the Mechanism of Nitrogen-directed Intramolecular Aromatic Borylation: C–H Bond Activation or Friedel–Crafts Reaction? CHEM LETT 2015. [DOI: 10.1246/cl.150522] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Dong-Yu Wang
- Graduate School of Pharmaceutical Sciences, The University of Tokyo
| | - Hiroki Minami
- Graduate School of Pharmaceutical Sciences, The University of Tokyo
| | - Chao Wang
- Graduate School of Pharmaceutical Sciences, The University of Tokyo
- Advanced Elements Chemistry Research Team, RIKEN Center for Sustainable Resource Science, and Elements Chemistry Laboratory, RIKEN
| | - Masanobu Uchiyama
- Graduate School of Pharmaceutical Sciences, The University of Tokyo
- Advanced Elements Chemistry Research Team, RIKEN Center for Sustainable Resource Science, and Elements Chemistry Laboratory, RIKEN
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60
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Zhong DC, Wen YQ, Deng JH, Luo XZ, Gong YN, Lu TB. Uncovering the Role of Metal Catalysis in Tetrazole Formation by an In Situ Cycloaddition Reaction: An Experimental Approach. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201505118] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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61
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Liu XW, Echavarren J, Zarate C, Martin R. Ni-Catalyzed Borylation of Aryl Fluorides via C–F Cleavage. J Am Chem Soc 2015; 137:12470-3. [DOI: 10.1021/jacs.5b08103] [Citation(s) in RCA: 176] [Impact Index Per Article: 19.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Xiang-Wei Liu
- Institute of Chemical Research of Catalonia (ICIQ), Av. Països Catalans 16, 43007 Tarragona, Spain
| | - Javier Echavarren
- Institute of Chemical Research of Catalonia (ICIQ), Av. Països Catalans 16, 43007 Tarragona, Spain
| | - Cayetana Zarate
- Institute of Chemical Research of Catalonia (ICIQ), Av. Països Catalans 16, 43007 Tarragona, Spain
| | - Ruben Martin
- Institute of Chemical Research of Catalonia (ICIQ), Av. Països Catalans 16, 43007 Tarragona, Spain
- Catalan Institution for Research and Advanced Studies (ICREA), Passeig Lluïs Companys, 23, 08010 Barcelona, Spain
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62
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Zhong D, Wen Y, Deng J, Luo X, Gong Y, Lu T. Uncovering the Role of Metal Catalysis in Tetrazole Formation by an In Situ Cycloaddition Reaction: An Experimental Approach. Angew Chem Int Ed Engl 2015; 54:11795-9. [DOI: 10.1002/anie.201505118] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2015] [Revised: 07/11/2015] [Indexed: 11/06/2022]
Affiliation(s)
- Di‐Chang Zhong
- School of Chemistry and Chemical Engineering, Gannan Normal University, Ganzhou 341000 (P.R. China)
| | - Ya‐Qiong Wen
- School of Chemistry and Chemical Engineering, Gannan Normal University, Ganzhou 341000 (P.R. China)
| | - Ji‐Hua Deng
- School of Chemistry and Chemical Engineering, Gannan Normal University, Ganzhou 341000 (P.R. China)
| | - Xu‐Zhong Luo
- School of Chemistry and Chemical Engineering, Gannan Normal University, Ganzhou 341000 (P.R. China)
| | - Yun‐Nan Gong
- School of Chemistry and Chemical Engineering, Gannan Normal University, Ganzhou 341000 (P.R. China)
| | - Tong‐Bu Lu
- School of Chemistry and Chemical Engineering, Sun Yat‐Sen University, Guangzhou 510275 (P.R. China)
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63
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Wu H, Garcia JM, Haeffner F, Radomkit S, Zhugralin AR, Hoveyda AH. Mechanism of NHC-Catalyzed Conjugate Additions of Diboron and Borosilane Reagents to α,β-Unsaturated Carbonyl Compounds. J Am Chem Soc 2015; 137:10585-602. [PMID: 26263513 DOI: 10.1021/jacs.5b06745] [Citation(s) in RCA: 84] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Broadly applicable enantioselective C-B and C-Si bond-forming processes catalyzed by an N-heterocyclic carbene (NHC) were recently introduced; these boryl and silyl conjugate addition reactions (BCA and SCA, respectively), which proceed without the need for a transition-metal complex, represent reaction pathways that are distinct from those facilitated by transition-metal-containing species (e.g., Cu, Ni, Pt, Pd, or Rh based). The Lewis-base-catalyzed (NHC) transformations are valuable to chemical synthesis, as they can generate high enantioselectivities and possess unique chemoselectivity profiles. Here, the results of investigations that elucidate the principal features of the NHC-catalyzed BCA and SCA processes are detailed. Spectroscopic evidence is provided illustrating why the presence of excess base and MeOH or H2O is required for efficient and enantioselective boryl and silyl addition reactions. It is demonstrated that the proton sources influence the efficiency and/or enantioselectivity of NHC-catalyzed enantioselective transformations in several ways. The positive, and at times adverse, impact of water (biphasic conditions) on catalytic enantioselective silyl addition reactions is analyzed. It is shown that a proton source can facilitate nonenantioselective background reactions and NHC decomposition, requiring the catalyst to surpass such complications. Stereochemical models are presented that account for the identity of the observed major enantiomers, providing a rationale for the differences in selectivity profiles of BCA and SCA processes.
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Affiliation(s)
- Hao Wu
- Department of Chemistry, Merkert Chemistry Center, Boston College , Chestnut Hill, Massachusetts 02467, United States
| | - Jeannette M Garcia
- Department of Chemistry, Merkert Chemistry Center, Boston College , Chestnut Hill, Massachusetts 02467, United States
| | - Fredrik Haeffner
- Department of Chemistry, Merkert Chemistry Center, Boston College , Chestnut Hill, Massachusetts 02467, United States
| | - Suttipol Radomkit
- Department of Chemistry, Merkert Chemistry Center, Boston College , Chestnut Hill, Massachusetts 02467, United States
| | - Adil R Zhugralin
- Department of Chemistry, Merkert Chemistry Center, Boston College , Chestnut Hill, Massachusetts 02467, United States
| | - Amir H Hoveyda
- Department of Chemistry, Merkert Chemistry Center, Boston College , Chestnut Hill, Massachusetts 02467, United States
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64
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Zarate C, Manzano R, Martin R. Ipso-Borylation of Aryl Ethers via Ni-Catalyzed C-OMe Cleavage. J Am Chem Soc 2015; 137:6754-7. [PMID: 25978094 DOI: 10.1021/jacs.5b03955] [Citation(s) in RCA: 158] [Impact Index Per Article: 17.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
A Ni-catalyzed ipso-borylation of aryl ethers via C(sp(2))-OMe and C(sp(3))-OMe cleavage is described. The transformation is characterized by its wide substrate scope under mild conditions and an exquisite divergence in site selectivity that can be easily switched by selecting the appropriate boron reagent.
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Affiliation(s)
- Cayetana Zarate
- †Institute of Chemical Research of Catalonia (ICIQ), Av. Països Catalans 16, 43007 Tarragona, Spain
| | - Rubén Manzano
- †Institute of Chemical Research of Catalonia (ICIQ), Av. Països Catalans 16, 43007 Tarragona, Spain
| | - Ruben Martin
- †Institute of Chemical Research of Catalonia (ICIQ), Av. Països Catalans 16, 43007 Tarragona, Spain.,§Catalan Institution for Research and Advanced Studies (ICREA), Passeig Lluïs Companys, 23, 08010 Barcelona, Spain
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65
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Guo H, Chen X, Zhao C, He W. Suzuki-type cross coupling between aryl halides and silylboranes for the syntheses of aryl silanes. Chem Commun (Camb) 2015; 51:17410-2. [DOI: 10.1039/c5cc07071f] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
A simple but efficient system with broad substrate scope was developed for the syntheses of aryl silanes.
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Affiliation(s)
- Huifang Guo
- School of Medicine and Tsinghua-Peking Joint Centers for Life Science
- Tsinghua University
- Beijing 100084
- China
| | - Xiao Chen
- School of Medicine and Tsinghua-Peking Joint Centers for Life Science
- Tsinghua University
- Beijing 100084
- China
| | - Chunliang Zhao
- School of Medicine and Tsinghua-Peking Joint Centers for Life Science
- Tsinghua University
- Beijing 100084
- China
| | - Wei He
- School of Medicine and Tsinghua-Peking Joint Centers for Life Science
- Tsinghua University
- Beijing 100084
- China
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