101
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Guo J, Cheng B, Shen X, Lu Z. Cobalt-Catalyzed Asymmetric Sequential Hydroboration/Hydrogenation of Internal Alkynes. J Am Chem Soc 2017; 139:15316-15319. [PMID: 29045129 DOI: 10.1021/jacs.7b09832] [Citation(s) in RCA: 129] [Impact Index Per Article: 18.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
A highly regio- and enantioselective cobalt-catalyzed hydroboration/hydrogenation of internal alkynes with HBpin and a hydrogen balloon in one pot was developed. A new type of chiral imidazoline iminopyridine (IIP) ligand was introduced for the first time in this novel and efficient strategy. This protocol used relatively simple and available starting materials with good functional group tolerance to construct more valuable chiral secondary organoboronates. The primary mechanistic studies illustrated that the cobalt-catalyzed regioselective hydroboration of alkynes did initially occur followed by HBpin-promoted and cobalt-catalyzed enantioselective hydrogenation of alkenylboronates.
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Affiliation(s)
- Jun Guo
- Department of Chemistry, Zhejiang University , Hangzhou 310058, China
| | - Biao Cheng
- Department of Chemistry, Zhejiang University , Hangzhou 310058, China
| | - Xuzhong Shen
- Department of Chemistry, Zhejiang University , Hangzhou 310058, China
| | - Zhan Lu
- Department of Chemistry, Zhejiang University , Hangzhou 310058, China
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102
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Zhang G, Wu J, Wang M, Zeng H, Cheng J, Neary MC, Zheng S. Cobalt-Catalyzed Regioselective Hydroboration of Terminal Alkenes. European J Org Chem 2017. [DOI: 10.1002/ejoc.201701047] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Guoqi Zhang
- Department of Sciences; John Jay College and PhD in Chemistry Program; The Graduate Center of City University of New York; 10019 New York NY USA
| | - Jing Wu
- Department of Sciences; John Jay College and PhD in Chemistry Program; The Graduate Center of City University of New York; 10019 New York NY USA
- Department of Chemistry; Hunter College; City University of New York; 10065 New York NY USA
| | - Man Wang
- Department of Sciences; John Jay College and PhD in Chemistry Program; The Graduate Center of City University of New York; 10019 New York NY USA
| | - Haisu Zeng
- Department of Sciences; John Jay College and PhD in Chemistry Program; The Graduate Center of City University of New York; 10019 New York NY USA
- Department of Chemistry; Hunter College; City University of New York; 10065 New York NY USA
| | - Jessica Cheng
- Department of Sciences; John Jay College and PhD in Chemistry Program; The Graduate Center of City University of New York; 10019 New York NY USA
| | - Michelle C. Neary
- Department of Chemistry; Hunter College; City University of New York; 10065 New York NY USA
| | - Shengping Zheng
- Department of Chemistry; Hunter College; City University of New York; 10065 New York NY USA
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103
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Chen C, Shen X, Chen J, Hong X, Lu Z. Iron-Catalyzed Hydroboration of Vinylcyclopropanes. Org Lett 2017; 19:5422-5425. [DOI: 10.1021/acs.orglett.7b02691] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Chenhui Chen
- Department of Chemistry, Zhejiang University, Hangzhou 310027, China
| | - Xuzhong Shen
- Department of Chemistry, Zhejiang University, Hangzhou 310027, China
| | - Jianhui Chen
- Department of Chemistry, Zhejiang University, Hangzhou 310027, China
| | - Xin Hong
- Department of Chemistry, Zhejiang University, Hangzhou 310027, China
| | - Zhan Lu
- Department of Chemistry, Zhejiang University, Hangzhou 310027, China
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104
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Jang WJ, Song SM, Moon JH, Lee JY, Yun J. Copper-Catalyzed Enantioselective Hydroboration of Unactivated 1,1-Disubstituted Alkenes. J Am Chem Soc 2017; 139:13660-13663. [PMID: 28899086 DOI: 10.1021/jacs.7b08379] [Citation(s) in RCA: 99] [Impact Index Per Article: 14.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
We report an efficient and highly enantioselective hydroboration of aliphatic 1,1-disubstituted alkenes with pinacolborane using a phosphine-Cu catalyst. The method allows facile preparation of enantiomerically enriched β-chiral alkyl pinacolboronates from a range of 1,1-disubstituted alkenes with high enantioselectivity up to 99% ee. Unprecedented enantiodiscrimination between the geminal alkyl substituents was observed with functional group compatibility in the hydroboration. Furthermore, a catalyst loading as low as 1 mol % furnished the desired product without a decrease in yield or selectivity, demonstrating its efficiency in gram scale synthesis.
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Affiliation(s)
- Won Jun Jang
- Department of Chemistry and Institute of Basic Science, Sungkyunkwan University , Suwon 16419, Korea
| | - Seung Min Song
- Department of Chemistry and Institute of Basic Science, Sungkyunkwan University , Suwon 16419, Korea
| | - Jong Hun Moon
- Department of Chemistry and Institute of Basic Science, Sungkyunkwan University , Suwon 16419, Korea
| | - Jin Yong Lee
- Department of Chemistry and Institute of Basic Science, Sungkyunkwan University , Suwon 16419, Korea
| | - Jaesook Yun
- Department of Chemistry and Institute of Basic Science, Sungkyunkwan University , Suwon 16419, Korea
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105
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Qian R, Kuliszewska E, Macoratti E, Hammerschmidt F. Chemoenzymatic Synthesis of Racemic and Enantiomerically Pure Phosphaaspartic Acid and Phosphaarginine. European J Org Chem 2017. [DOI: 10.1002/ejoc.201700948] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Renzhe Qian
- Institut für Organische Chemie; Universität Wien; Wien Austria
| | | | - Elena Macoratti
- Institut für Organische Chemie; Universität Wien; Wien Austria
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106
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Chen WC, Shih WC, Jurca T, Zhao L, Andrada DM, Peng CJ, Chang CC, Liu SK, Wang YP, Wen YS, Yap GPA, Hsu CP, Frenking G, Ong TG. Carbodicarbenes: Unexpected π-Accepting Ability during Reactivity with Small Molecules. J Am Chem Soc 2017; 139:12830-12836. [DOI: 10.1021/jacs.7b08031] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Wen-Ching Chen
- Institute
of Chemistry, Academia Sinica, No. 128, Sec. 2, Academia Road, Nangang, Taipei 11529, Taiwan, R.O.C
| | - Wei-Chih Shih
- Institute
of Chemistry, Academia Sinica, No. 128, Sec. 2, Academia Road, Nangang, Taipei 11529, Taiwan, R.O.C
| | - Titel Jurca
- Department
of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
| | - Lili Zhao
- Institute
of Advanced Synthesis, School of Chemistry and Molecular Engineering,
Jiangsu National Synergetic Innovation Center for Advanced Materials, Nanjing Tech University, Nanjing 211816, China
| | - Diego M. Andrada
- Fachbereich
Chemie, Philipps-Universität Marburg, Hans-Meerwein-Strasse, D-35043 Marburg, Germany
| | - Chun-Jung Peng
- Institute
of Chemistry, Academia Sinica, No. 128, Sec. 2, Academia Road, Nangang, Taipei 11529, Taiwan, R.O.C
| | - Chun-Chi Chang
- Institute
of Chemistry, Academia Sinica, No. 128, Sec. 2, Academia Road, Nangang, Taipei 11529, Taiwan, R.O.C
| | - Shu-kai Liu
- Institute
of Chemistry, Academia Sinica, No. 128, Sec. 2, Academia Road, Nangang, Taipei 11529, Taiwan, R.O.C
| | - Yi-Ping Wang
- Institute
of Chemistry, Academia Sinica, No. 128, Sec. 2, Academia Road, Nangang, Taipei 11529, Taiwan, R.O.C
| | - Yuh-Sheng Wen
- Institute
of Chemistry, Academia Sinica, No. 128, Sec. 2, Academia Road, Nangang, Taipei 11529, Taiwan, R.O.C
| | - Glenn P. A. Yap
- Department
of Chemistry and Biochemistry, University of Delaware, Newark, Delaware 19716, United States
| | - Chao-Ping Hsu
- Institute
of Chemistry, Academia Sinica, No. 128, Sec. 2, Academia Road, Nangang, Taipei 11529, Taiwan, R.O.C
| | - Gernot Frenking
- Institute
of Advanced Synthesis, School of Chemistry and Molecular Engineering,
Jiangsu National Synergetic Innovation Center for Advanced Materials, Nanjing Tech University, Nanjing 211816, China
- Fachbereich
Chemie, Philipps-Universität Marburg, Hans-Meerwein-Strasse, D-35043 Marburg, Germany
| | - Tiow-Gan Ong
- Institute
of Chemistry, Academia Sinica, No. 128, Sec. 2, Academia Road, Nangang, Taipei 11529, Taiwan, R.O.C
- Department
of Applied Chemistry, National Chiao Tung University, No. 1001,
Ta Hsueh Road, Hsinchu 300, Taiwan, R.O.C
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107
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Smith J, Collins BSL, Hesse MJ, Graham MA, Myers EL, Aggarwal VK. Enantioselective Rhodium(III)-Catalyzed Markovnikov Hydroboration of Unactivated Terminal Alkenes. J Am Chem Soc 2017; 139:9148-9151. [PMID: 28665124 PMCID: PMC5515510 DOI: 10.1021/jacs.7b05149] [Citation(s) in RCA: 81] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2017] [Indexed: 11/29/2022]
Abstract
We report the first enantioselective Rh-catalyzed Markovnikov hydroboration of unactivated terminal alkenes. Using a novel sp2-sp3 hybridized diboron reagent and water as a proton source, a broad range of alkenes undergo hydroboration to provide secondary boronic esters with high regio- and enantiocontrol.
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Affiliation(s)
- James
R. Smith
- School
of Chemistry, University of Bristol, Cantock’s Close, Bristol BS8 1TS, United Kingdom
| | - Beatrice S. L. Collins
- School
of Chemistry, University of Bristol, Cantock’s Close, Bristol BS8 1TS, United Kingdom
| | - Matthew J. Hesse
- School
of Chemistry, University of Bristol, Cantock’s Close, Bristol BS8 1TS, United Kingdom
| | - Mark A. Graham
- Pharmaceutical
Technology and Development, AstraZeneca, Silk Road Business Park, Charter
Way, Macclesfield SK10
2NA, United Kingdom
| | - Eddie L. Myers
- School
of Chemistry, University of Bristol, Cantock’s Close, Bristol BS8 1TS, United Kingdom
| | - Varinder K. Aggarwal
- School
of Chemistry, University of Bristol, Cantock’s Close, Bristol BS8 1TS, United Kingdom
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108
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Chen S, Yan D, Xue M, Hong Y, Yao Y, Shen Q. Tris(cyclopentadienyl)lanthanide Complexes as Catalysts for Hydroboration Reaction toward Aldehydes and Ketones. Org Lett 2017. [PMID: 28644031 DOI: 10.1021/acs.orglett.7b01335] [Citation(s) in RCA: 77] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
It was found that homoleptic cyclopentadienyl lanthanide complexes Cp3Ln (Ln = Y (1), Yb (2), Sm (3), Nd (4), La (5), Cp = cyclopentadienyl) can be employed as excellent catalysts for the hydroboration of various aldehydes and ketones toward pinacolborane. These robust lanthanide catalysts exhibited high reactivity with low catalyst loadings (0.01-1 mol %) under mild conditions and good functional group tolerability. These complexes also demonstrated uniquely carbonyl-selective hydroboration in the presence of alkenes and alkynes.
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Affiliation(s)
- Sufang Chen
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Dushu Lake Campus, Soochow University , Suzhou 215123, People's Republic of China
| | - Dandan Yan
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Dushu Lake Campus, Soochow University , Suzhou 215123, People's Republic of China
| | - Mingqiang Xue
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Dushu Lake Campus, Soochow University , Suzhou 215123, People's Republic of China
| | - Yubiao Hong
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Dushu Lake Campus, Soochow University , Suzhou 215123, People's Republic of China
| | - Yingming Yao
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Dushu Lake Campus, Soochow University , Suzhou 215123, People's Republic of China
| | - Qi Shen
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Dushu Lake Campus, Soochow University , Suzhou 215123, People's Republic of China
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109
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Chen L, Zou X, Zhao H, Xu S. Copper-Catalyzed Asymmetric Protoboration of β-Amidoacrylonitriles and β-Amidoacrylate Esters: An Efficient Approach to Functionalized Chiral α-Amino Boronate Esters. Org Lett 2017. [DOI: 10.1021/acs.orglett.7b01740] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Lili Chen
- State
Key Laboratory for Oxo Synthesis and Selective Oxidation, Suzhou Research
Institute, Lanzhou Institute of Chemical Physics (LICP), Chinese Academy of Sciences, Lanzhou 73000, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xiaoliang Zou
- State
Key Laboratory for Oxo Synthesis and Selective Oxidation, Suzhou Research
Institute, Lanzhou Institute of Chemical Physics (LICP), Chinese Academy of Sciences, Lanzhou 73000, China
| | - Haonan Zhao
- State
Key Laboratory for Oxo Synthesis and Selective Oxidation, Suzhou Research
Institute, Lanzhou Institute of Chemical Physics (LICP), Chinese Academy of Sciences, Lanzhou 73000, China
| | - Senmiao Xu
- State
Key Laboratory for Oxo Synthesis and Selective Oxidation, Suzhou Research
Institute, Lanzhou Institute of Chemical Physics (LICP), Chinese Academy of Sciences, Lanzhou 73000, China
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110
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Wang Z, He X, Zhang R, Zhang G, Xu G, Zhang Q, Xiong T, Zhang Q. Copper-Catalyzed Asymmetric Hydroboration of 1,1-Disubstituted Alkenes. Org Lett 2017; 19:3067-3070. [DOI: 10.1021/acs.orglett.7b01135] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Zining Wang
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Department of Chemistry, Northeast Normal University, Changchun 130024, China
| | - Xiaxia He
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Department of Chemistry, Northeast Normal University, Changchun 130024, China
| | - Rui Zhang
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Department of Chemistry, Northeast Normal University, Changchun 130024, China
| | - Ge Zhang
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Department of Chemistry, Northeast Normal University, Changchun 130024, China
| | - Guoxing Xu
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Department of Chemistry, Northeast Normal University, Changchun 130024, China
| | - Qian Zhang
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Department of Chemistry, Northeast Normal University, Changchun 130024, China
| | - Tao Xiong
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Department of Chemistry, Northeast Normal University, Changchun 130024, China
| | - Qian Zhang
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Department of Chemistry, Northeast Normal University, Changchun 130024, China
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111
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Kong D, Han S, Wang R, Li M, Zi G, Hou G. Kinetic resolution of racemic 2-substituted 1,2-dihydroquinolines via asymmetric Cu-catalyzed borylation. Chem Sci 2017; 8:4558-4564. [PMID: 28936333 PMCID: PMC5590099 DOI: 10.1039/c7sc01556a] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2017] [Accepted: 04/11/2017] [Indexed: 01/20/2023] Open
Abstract
A highly efficient kinetic resolution of racemic 2-substituted 1,2-dihydroquinolines via asymmetric Cu-catalyzed borylation has been realized for the first time. Under mild conditions, a variety of chiral 3-boryl-1,2,3,4-tetrahydroquinolines containing two vicinal stereogenic centers as well as the recovered 2-substituted 1,2-dihydroquinolines were afforded after 30 minutes in high yields with up to 99% ee (dr > 99 : 1) and over 98% ee values, respectively, corresponding to kinetic selectivity factors of up to 569. Moreover, this protocol was successfully applied to the asymmetric synthesis of a selective estrogen receptor modulator.
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Affiliation(s)
- Duanyang Kong
- Key Laboratory of Radiopharmaceuticals , College of Chemistry , Beijing Normal University , No. 19 Xinjiekouwai St. , Beijing 100875 , China .
| | - Suna Han
- Key Laboratory of Radiopharmaceuticals , College of Chemistry , Beijing Normal University , No. 19 Xinjiekouwai St. , Beijing 100875 , China .
| | - Rui Wang
- Key Laboratory of Radiopharmaceuticals , College of Chemistry , Beijing Normal University , No. 19 Xinjiekouwai St. , Beijing 100875 , China .
| | - Meina Li
- Key Laboratory of Radiopharmaceuticals , College of Chemistry , Beijing Normal University , No. 19 Xinjiekouwai St. , Beijing 100875 , China .
| | - Guofu Zi
- Key Laboratory of Radiopharmaceuticals , College of Chemistry , Beijing Normal University , No. 19 Xinjiekouwai St. , Beijing 100875 , China .
| | - Guohua Hou
- Key Laboratory of Radiopharmaceuticals , College of Chemistry , Beijing Normal University , No. 19 Xinjiekouwai St. , Beijing 100875 , China .
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112
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Rokade BV, Guiry PJ. Diastereofacial π-Stacking as an Approach To Access an Axially Chiral P,N-Ligand for Asymmetric Catalysis. ACS Catal 2017. [DOI: 10.1021/acscatal.6b03427] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Balaji V. Rokade
- Centre for Synthesis and
Chemical Biology (CSCB), School of Chemistry, University College Dublin (UCD), Belfield, Dublin 4, Ireland
| | - Patrick J. Guiry
- Centre for Synthesis and
Chemical Biology (CSCB), School of Chemistry, University College Dublin (UCD), Belfield, Dublin 4, Ireland
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113
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Chen X, Cheng Z, Lu Z. Iron-Catalyzed, Markovnikov-Selective Hydroboration of Styrenes. Org Lett 2017; 19:969-971. [DOI: 10.1021/acs.orglett.7b00227] [Citation(s) in RCA: 50] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Xu Chen
- Department of Chemistry, Zhejiang University, Hangzhou 310058, China
| | - Zhaoyang Cheng
- Department of Chemistry, Zhejiang University, Hangzhou 310058, China
| | - Zhan Lu
- Department of Chemistry, Zhejiang University, Hangzhou 310058, China
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114
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Arrowsmith M, Braunschweig H, Radacki K, Thiess T, Turkin A. Facile Access to Unprecedented Electron-Precise Monohydrodiboranes(4), cis-1,2-Dihydrodiboranes(4), and a 1,1-Dihydrodiborane(5). Chemistry 2017; 23:2179-2184. [PMID: 27935652 DOI: 10.1002/chem.201605270] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2016] [Indexed: 11/07/2022]
Abstract
2,3-Bis(dimethylamino)-substituted B2 N2 C2 heterocycles underwent selective dimethylamino/hydride exchange with either one or two equivalents of BH3 ⋅SMe2 to give the corresponding cyclic monohydrido- or (cis)1,2-dihydridodiboranes(4), respectively. Upon either heating or irradiation in solution, the latter underwent ring contraction to the corresponding five-membered BN2 C2 heterocycles, whereas irradiation of the 1,2-dimethylaminoethene-supported 1,2-dihydridodiborane(4) in the presence of PEt3 gave an unprecedented unsymmetrical 1,1-dihydrodiborane(5) phosphine adduct.
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Affiliation(s)
- Merle Arrowsmith
- Institute for Sustainable Chemistry and Catalysis with Boron, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074, Würzburg, Germany.,Institute for Inorganic Chemistry, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074, Würzburg, Germany
| | - Holger Braunschweig
- Institute for Sustainable Chemistry and Catalysis with Boron, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074, Würzburg, Germany.,Institute for Inorganic Chemistry, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074, Würzburg, Germany
| | - Krzysztof Radacki
- Institute for Sustainable Chemistry and Catalysis with Boron, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074, Würzburg, Germany.,Institute for Inorganic Chemistry, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074, Würzburg, Germany
| | - Torsten Thiess
- Institute for Sustainable Chemistry and Catalysis with Boron, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074, Würzburg, Germany.,Institute for Inorganic Chemistry, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074, Würzburg, Germany
| | - Arthur Turkin
- Institute for Sustainable Chemistry and Catalysis with Boron, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074, Würzburg, Germany.,Institute for Inorganic Chemistry, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074, Würzburg, Germany
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115
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Fujihara T, Sawada A, Yamaguchi T, Tani Y, Terao J, Tsuji Y. Boraformylation and Silaformylation of Allenes. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201611314] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Tetsuaki Fujihara
- Department of Energy and Hydrocarbon Chemistry; Graduate School of Engineering; Kyoto University; Kyoto 615-8510 Japan
| | - Ayumi Sawada
- Department of Energy and Hydrocarbon Chemistry; Graduate School of Engineering; Kyoto University; Kyoto 615-8510 Japan
| | - Tatsuya Yamaguchi
- Department of Energy and Hydrocarbon Chemistry; Graduate School of Engineering; Kyoto University; Kyoto 615-8510 Japan
| | - Yosuke Tani
- Department of Energy and Hydrocarbon Chemistry; Graduate School of Engineering; Kyoto University; Kyoto 615-8510 Japan
- Present address: Department of Chemistry; Graduate School of Science; Osaka University; Toyonaka Osaka 560-0043 Japan
| | - Jun Terao
- Department of Energy and Hydrocarbon Chemistry; Graduate School of Engineering; Kyoto University; Kyoto 615-8510 Japan
- Present address: Department of Basic Science; Graduate School of Art and Sciences; The University of Tokyo; Tokyo 153-8902 Japan
| | - Yasushi Tsuji
- Department of Energy and Hydrocarbon Chemistry; Graduate School of Engineering; Kyoto University; Kyoto 615-8510 Japan
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116
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Lee J, Torker S, Hoveyda AH. Versatile Homoallylic Boronates by Chemo-, S N 2'-, Diastereo- and Enantioselective Catalytic Sequence of Cu-H Addition to Vinyl-B(pin)/Allylic Substitution. Angew Chem Int Ed Engl 2017; 56:821-826. [PMID: 27996213 PMCID: PMC5267969 DOI: 10.1002/anie.201611444] [Citation(s) in RCA: 69] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2016] [Indexed: 12/31/2022]
Abstract
A highly chemo-, diastereo- and enantioselective catalytic method that efficiently combines a silyl hydride, vinyl-B(pin) (pin=pinacolato) and (E)-1,2-disubstituted allylic phosphates is introduced. Reactions, best promoted by a Cu-based complex with a chiral sulfonate-containing N-heterocyclic carbene, are broadly applicable. Aryl-, heteroaryl-, alkenyl-, alkynyl- and alkyl-substituted allylic phosphates may thus be converted to the corresponding homoallylic boronates and then alcohols (after C-B bond oxidation) in 46-91 % yield and in up to >98 % SN 2':SN 2 ratio, 96:4 diastereomeric ratio and 98:2 enantiomeric ratio. The reasons why an NHC-Cu catalyst is uniquely effective (vs. the corresponding phosphine systems) and the basis for different trends in stereoselectivity are provided with the aid of DFT calculations.
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Affiliation(s)
- Jaehee Lee
- Department of Chemistry, Merkert Chemistry Center, Boston College, Chestnut Hill, MA 02467 (USA)
| | - Sebastian Torker
- Department of Chemistry, Merkert Chemistry Center, Boston College, Chestnut Hill, MA 02467 (USA)
| | - Amir H. Hoveyda
- Department of Chemistry, Merkert Chemistry Center, Boston College, Chestnut Hill, MA 02467 (USA)
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117
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Fujihara T, Sawada A, Yamaguchi T, Tani Y, Terao J, Tsuji Y. Boraformylation and Silaformylation of Allenes. Angew Chem Int Ed Engl 2017; 56:1539-1543. [PMID: 28074601 DOI: 10.1002/anie.201611314] [Citation(s) in RCA: 86] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2016] [Indexed: 12/30/2022]
Abstract
The boraformylation of allenes with B2 (pin)2 and a formate ester as boron and formyl source, respectively, proceeds in the presence of a copper catalyst. The reaction selectively affords the corresponding β-boryl β,γ-unsaturated aldehydes in good to high yields. Furthermore, the silaformylation of allenes was achieved with a formate ester and PhMe2 Si-B(pin) as the silicon source.
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Affiliation(s)
- Tetsuaki Fujihara
- Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University, Kyoto, 615-8510, Japan
| | - Ayumi Sawada
- Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University, Kyoto, 615-8510, Japan
| | - Tatsuya Yamaguchi
- Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University, Kyoto, 615-8510, Japan
| | - Yosuke Tani
- Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University, Kyoto, 615-8510, Japan.,Present address: Department of Chemistry, Graduate School of Science, Osaka University, Toyonaka, Osaka, 560-0043, Japan
| | - Jun Terao
- Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University, Kyoto, 615-8510, Japan.,Present address: Department of Basic Science, Graduate School of Art and Sciences, The University of Tokyo, Tokyo, 153-8902, Japan
| | - Yasushi Tsuji
- Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University, Kyoto, 615-8510, Japan
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118
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Kubota K, Iwamoto H, Ito H. Formal nucleophilic borylation and borylative cyclization of organic halides. Org Biomol Chem 2017; 15:285-300. [DOI: 10.1039/c6ob02369j] [Citation(s) in RCA: 83] [Impact Index Per Article: 11.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Recent advances in borylations of organic halides, including both transition-metal-catalyzed and metal-free methods are summarized. Borylative cyclization is also discussed.
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Affiliation(s)
- K. Kubota
- Division of Applied Chemistry and Frontier Chemistry Centre (FCC)
- Faculty of Engineering
- Hokkaido University
- Sapporo
- Japan
| | - H. Iwamoto
- Division of Applied Chemistry and Frontier Chemistry Centre (FCC)
- Faculty of Engineering
- Hokkaido University
- Sapporo
- Japan
| | - H. Ito
- Division of Applied Chemistry and Frontier Chemistry Centre (FCC)
- Faculty of Engineering
- Hokkaido University
- Sapporo
- Japan
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119
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Sandford C, Aggarwal VK. Stereospecific functionalizations and transformations of secondary and tertiary boronic esters. Chem Commun (Camb) 2017; 53:5481-5494. [DOI: 10.1039/c7cc01254c] [Citation(s) in RCA: 342] [Impact Index Per Article: 48.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
This feature article discusses the range of stereospecific transformations available to enantioenriched boronic esters, and their applications in synthesis.
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120
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Nakamura G, Nakajima Y, Matsumoto K, Srinivas V, Shimada S. Nitrile hydroboration reactions catalysed by simple nickel salts, bis(acetylacetonato)nickel(ii) and its derivatives. Catal Sci Technol 2017. [DOI: 10.1039/c7cy00944e] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Simple nickel salts, bis(acetylacetonato)nickel(ii) and its derivatives, catalyzed the hydroboration reactions of aryl and alkyl nitriles with catechol borane.
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Affiliation(s)
- Go Nakamura
- National Institute of Advanced Industrial Science and Technology (AIST)
- Tsukuba
- Japan
| | - Yumiko Nakajima
- National Institute of Advanced Industrial Science and Technology (AIST)
- Tsukuba
- Japan
| | - Kazuhiro Matsumoto
- National Institute of Advanced Industrial Science and Technology (AIST)
- Tsukuba
- Japan
| | - Venu Srinivas
- National Institute of Advanced Industrial Science and Technology (AIST)
- Tsukuba
- Japan
| | - Shigeru Shimada
- National Institute of Advanced Industrial Science and Technology (AIST)
- Tsukuba
- Japan
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121
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Lee J, Torker S, Hoveyda AH. Versatile Homoallylic Boronates by Chemo‐, S
N
2′‐, Diastereo‐ and Enantioselective Catalytic Sequence of Cu−H Addition to Vinyl‐B(pin)/Allylic Substitution. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201611444] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Jaehee Lee
- Department of Chemistry, Merkert Chemistry Center Boston College Chestnut Hill MA 02467 USA
| | - Sebastian Torker
- Department of Chemistry, Merkert Chemistry Center Boston College Chestnut Hill MA 02467 USA
| | - Amir H. Hoveyda
- Department of Chemistry, Merkert Chemistry Center Boston College Chestnut Hill MA 02467 USA
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122
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Han JT, Jang WJ, Kim N, Yun J. Asymmetric Synthesis of Borylalkanes via Copper-Catalyzed Enantioselective Hydroallylation. J Am Chem Soc 2016; 138:15146-15149. [DOI: 10.1021/jacs.6b11229] [Citation(s) in RCA: 73] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jung Tae Han
- Department of Chemistry and
Institute of Basic Science, Sungkyunkwan University, Suwon 16419, Korea
| | - Won Jun Jang
- Department of Chemistry and
Institute of Basic Science, Sungkyunkwan University, Suwon 16419, Korea
| | - Namhyeon Kim
- Department of Chemistry and
Institute of Basic Science, Sungkyunkwan University, Suwon 16419, Korea
| | - Jaesook Yun
- Department of Chemistry and
Institute of Basic Science, Sungkyunkwan University, Suwon 16419, Korea
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123
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Kong L, Lu W, Li Y, Ganguly R, Kinjo R. Azaborabutadienes: Synthesis by Metal-Free Carboboration of Nitriles and Utility as Building Blocks for B,N-Heterocycles. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201608994] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Lingbing Kong
- Division of Chemistry and Biological Chemistry; School of Physical and Mathematical Sciences; Nanyang Technological University; Nanyang Link 21 Singapore 637371 Singapore
| | - Wei Lu
- Division of Chemistry and Biological Chemistry; School of Physical and Mathematical Sciences; Nanyang Technological University; Nanyang Link 21 Singapore 637371 Singapore
| | - Yongxin Li
- Division of Chemistry and Biological Chemistry; School of Physical and Mathematical Sciences; Nanyang Technological University; Nanyang Link 21 Singapore 637371 Singapore
| | - Rakesh Ganguly
- Division of Chemistry and Biological Chemistry; School of Physical and Mathematical Sciences; Nanyang Technological University; Nanyang Link 21 Singapore 637371 Singapore
| | - Rei Kinjo
- Division of Chemistry and Biological Chemistry; School of Physical and Mathematical Sciences; Nanyang Technological University; Nanyang Link 21 Singapore 637371 Singapore
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124
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Kong L, Lu W, Li Y, Ganguly R, Kinjo R. Azaborabutadienes: Synthesis by Metal‐Free Carboboration of Nitriles and Utility as Building Blocks for B,N‐Heterocycles. Angew Chem Int Ed Engl 2016; 55:14718-14722. [DOI: 10.1002/anie.201608994] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2016] [Revised: 10/06/2016] [Indexed: 11/08/2022]
Affiliation(s)
- Lingbing Kong
- Division of Chemistry and Biological Chemistry School of Physical and Mathematical Sciences Nanyang Technological University Nanyang Link 21 Singapore 637371 Singapore
| | - Wei Lu
- Division of Chemistry and Biological Chemistry School of Physical and Mathematical Sciences Nanyang Technological University Nanyang Link 21 Singapore 637371 Singapore
| | - Yongxin Li
- Division of Chemistry and Biological Chemistry School of Physical and Mathematical Sciences Nanyang Technological University Nanyang Link 21 Singapore 637371 Singapore
| | - Rakesh Ganguly
- Division of Chemistry and Biological Chemistry School of Physical and Mathematical Sciences Nanyang Technological University Nanyang Link 21 Singapore 637371 Singapore
| | - Rei Kinjo
- Division of Chemistry and Biological Chemistry School of Physical and Mathematical Sciences Nanyang Technological University Nanyang Link 21 Singapore 637371 Singapore
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125
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Zhang G, Zeng H, Wu J, Yin Z, Zheng S, Fettinger JC. Highly Selective Hydroboration of Alkenes, Ketones and Aldehydes Catalyzed by a Well-Defined Manganese Complex. Angew Chem Int Ed Engl 2016; 55:14369-14372. [DOI: 10.1002/anie.201607579] [Citation(s) in RCA: 142] [Impact Index Per Article: 17.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2016] [Revised: 09/07/2016] [Indexed: 12/15/2022]
Affiliation(s)
- Guoqi Zhang
- Department of Sciences, John Jay College and Ph.D. in Chemistry Program; The Graduate Center of City University of New York; New York NY 10019 USA
| | - Haisu Zeng
- Department of Sciences, John Jay College and Ph.D. in Chemistry Program; The Graduate Center of City University of New York; New York NY 10019 USA
- Department of Chemistry, Hunter College; City University of New York; New York NY 10065 USA
| | - Jing Wu
- Department of Sciences, John Jay College and Ph.D. in Chemistry Program; The Graduate Center of City University of New York; New York NY 10019 USA
- Department of Chemistry, Hunter College; City University of New York; New York NY 10065 USA
| | - Zhiwei Yin
- Department of Sciences, John Jay College and Ph.D. in Chemistry Program; The Graduate Center of City University of New York; New York NY 10019 USA
- Department of Chemistry, Hunter College; City University of New York; New York NY 10065 USA
| | - Shengping Zheng
- Department of Chemistry, Hunter College; City University of New York; New York NY 10065 USA
| | - James C. Fettinger
- Department of Chemistry; University of California Davis; Davis CA 95616 USA
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126
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Zhang G, Zeng H, Wu J, Yin Z, Zheng S, Fettinger JC. Highly Selective Hydroboration of Alkenes, Ketones and Aldehydes Catalyzed by a Well-Defined Manganese Complex. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201607579] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Guoqi Zhang
- Department of Sciences, John Jay College and Ph.D. in Chemistry Program; The Graduate Center of City University of New York; New York NY 10019 USA
| | - Haisu Zeng
- Department of Sciences, John Jay College and Ph.D. in Chemistry Program; The Graduate Center of City University of New York; New York NY 10019 USA
- Department of Chemistry, Hunter College; City University of New York; New York NY 10065 USA
| | - Jing Wu
- Department of Sciences, John Jay College and Ph.D. in Chemistry Program; The Graduate Center of City University of New York; New York NY 10019 USA
- Department of Chemistry, Hunter College; City University of New York; New York NY 10065 USA
| | - Zhiwei Yin
- Department of Sciences, John Jay College and Ph.D. in Chemistry Program; The Graduate Center of City University of New York; New York NY 10019 USA
- Department of Chemistry, Hunter College; City University of New York; New York NY 10065 USA
| | - Shengping Zheng
- Department of Chemistry, Hunter College; City University of New York; New York NY 10065 USA
| | - James C. Fettinger
- Department of Chemistry; University of California Davis; Davis CA 95616 USA
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127
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MacNair AJ, Millet CRP, Nichol GS, Ironmonger A, Thomas SP. Markovnikov-Selective, Activator-Free Iron-Catalyzed Vinylarene Hydroboration. ACS Catal 2016. [DOI: 10.1021/acscatal.6b02281] [Citation(s) in RCA: 68] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Alistair J. MacNair
- EaStCHEM,
School of Chemistry, University of Edinburgh, Joseph Black Building, David Brewster
Road, Edinburgh, EH9 3FJ, Scotland
| | - Clément R. P. Millet
- EaStCHEM,
School of Chemistry, University of Edinburgh, Joseph Black Building, David Brewster
Road, Edinburgh, EH9 3FJ, Scotland
| | - Gary S. Nichol
- EaStCHEM,
School of Chemistry, University of Edinburgh, Joseph Black Building, David Brewster
Road, Edinburgh, EH9 3FJ, Scotland
| | - Alan Ironmonger
- Research and Development,
GlaxoSmithKline, Gunnels Wood Road, Stevenage SG1 2NY, United Kingdom
| | - Stephen P. Thomas
- EaStCHEM,
School of Chemistry, University of Edinburgh, Joseph Black Building, David Brewster
Road, Edinburgh, EH9 3FJ, Scotland
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128
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Arnold N, Braunschweig H, Dewhurst RD, Hupp F, Radacki K, Trumpp A. Desymmetrizing Electron-Deficient Diboranes(4): Diverse Products and Their Reactivity. Chemistry 2016; 22:13927-13934. [DOI: 10.1002/chem.201602805] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2016] [Indexed: 12/27/2022]
Affiliation(s)
- Nicole Arnold
- Institut für Anorganische Chemie; Julius-Maximilians-Universität Würzburg; Am Hubland 97074 Würzburg Germany
| | - Holger Braunschweig
- Institut für Anorganische Chemie; Julius-Maximilians-Universität Würzburg; Am Hubland 97074 Würzburg Germany
| | - Rian D. Dewhurst
- Institut für Anorganische Chemie; Julius-Maximilians-Universität Würzburg; Am Hubland 97074 Würzburg Germany
| | - Florian Hupp
- Institut für Anorganische Chemie; Julius-Maximilians-Universität Würzburg; Am Hubland 97074 Würzburg Germany
| | - Krzysztof Radacki
- Institut für Anorganische Chemie; Julius-Maximilians-Universität Würzburg; Am Hubland 97074 Würzburg Germany
| | - Alexandra Trumpp
- Institut für Anorganische Chemie; Julius-Maximilians-Universität Würzburg; Am Hubland 97074 Würzburg Germany
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129
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Longobardi LE, Johnstone TC, Falconer RL, Russell CA, Stephan DW. Hydroboration of Phosphaalkynes by HB(C6F5)2. Chemistry 2016; 22:12665-9. [DOI: 10.1002/chem.201602860] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2016] [Indexed: 11/10/2022]
Affiliation(s)
- Lauren E. Longobardi
- Department of Chemistry; University of Toronto; 80 St. George St Toronto ON M5S 3H6 Canada
| | - Timothy C. Johnstone
- Department of Chemistry; University of Toronto; 80 St. George St Toronto ON M5S 3H6 Canada
| | - Rosalyn L. Falconer
- School of Chemistry; University of Bristol; Cantock's Close Bristol BS8 1TS UK
| | | | - Douglas W. Stephan
- Department of Chemistry; University of Toronto; 80 St. George St Toronto ON M5S 3H6 Canada
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130
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Tsuji Y, Fujihara T. Copper-Catalyzed Transformations Using Cu-H, Cu-B, and Cu-Si as Active Catalyst Species. CHEM REC 2016; 16:2294-2313. [DOI: 10.1002/tcr.201600039] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2016] [Indexed: 11/06/2022]
Affiliation(s)
- Yasushi Tsuji
- Department of Energy and Hydrocarbon chemistry Graduate School of Engineering; Kyoto University; Kyoto 615-8510 Japan
| | - Tetsuaki Fujihara
- Department of Energy and Hydrocarbon chemistry Graduate School of Engineering; Kyoto University; Kyoto 615-8510 Japan
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131
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Pàmies O, Diéguez M. Adaptable P-X Biaryl Phosphite/Phosphoroamidite-Containing Ligands for Asymmetric Hydrogenation and C-X Bond-Forming Reactions: Ligand Libraries with Exceptionally Wide Substrate Scope. CHEM REC 2016; 16:2460-2481. [PMID: 27324282 DOI: 10.1002/tcr.201600062] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2016] [Indexed: 11/08/2022]
Abstract
In this personal review, we present our efforts in the design of ligand libraries for the discovery of suitable metal catalysts for asymmetric hydrogenation and C-X bond-forming reactions.
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Affiliation(s)
- Oscar Pàmies
- Departament de Química Física i Inorgànica, Universitat Rovira i Virgili C/Marcel·li Domingo, 1. 43007, Tarragona, Spain
| | - Montserrat Diéguez
- Departament de Química Física i Inorgànica, Universitat Rovira i Virgili C/Marcel·li Domingo, 1. 43007, Tarragona, Spain
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132
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Xi Y, Hartwig JF. Diverse Asymmetric Hydrofunctionalization of Aliphatic Internal Alkenes through Catalytic Regioselective Hydroboration. J Am Chem Soc 2016; 138:6703-6. [PMID: 27167490 DOI: 10.1021/jacs.6b02478] [Citation(s) in RCA: 123] [Impact Index Per Article: 15.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
We report a two-step strategy for diverse hydrofunctionalizations of aliphatic internal alkenes with high regioselectivity and enantioselectivity. This process comprises a copper-catalyzed asymmetric hydroboration and subsequent stereospecific derivatizations of the secondary boronates. By this strategy, a range of compounds, such as amides, alkyl fluorides and bromides, alcohols, aldehydes, arenes, and heteroarenes, were synthesized from an internal alkene with high regioselectivity and enantioselectivity. Computational studies provide insight into the origins of these selectivities.
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Affiliation(s)
- Yumeng Xi
- Division of Chemical Sciences, Lawrence Berkeley National Laboratory, and Department of Chemistry, University of California , Berkeley, California 94720, United States
| | - John F Hartwig
- Division of Chemical Sciences, Lawrence Berkeley National Laboratory, and Department of Chemistry, University of California , Berkeley, California 94720, United States
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133
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Zhan M, Li RZ, Mou ZD, Cao CG, Liu J, Chen YW, Niu D. Silver-Assisted, Iridium-Catalyzed Allylation of Bis[(pinacolato)boryl]methane Allows the Synthesis of Enantioenriched Homoallylic Organoboronic Esters. ACS Catal 2016. [DOI: 10.1021/acscatal.6b00719] [Citation(s) in RCA: 97] [Impact Index Per Article: 12.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Miao Zhan
- Department of Emergency,
State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation Center for Biotherapy, Chengdu 610041, China
| | - Ren-Zhe Li
- Department of Emergency,
State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation Center for Biotherapy, Chengdu 610041, China
| | - Ze-Dong Mou
- Department of Emergency,
State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation Center for Biotherapy, Chengdu 610041, China
| | - Chao-Guo Cao
- Department of Emergency,
State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation Center for Biotherapy, Chengdu 610041, China
| | - Jie Liu
- Department of Emergency,
State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation Center for Biotherapy, Chengdu 610041, China
| | - Yuan-Wei Chen
- Department of Emergency,
State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation Center for Biotherapy, Chengdu 610041, China
| | - Dawen Niu
- Department of Emergency,
State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation Center for Biotherapy, Chengdu 610041, China
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134
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King AE, Stieber SCE, Henson NJ, Kozimor SA, Scott BL, Smythe NC, Sutton AD, Gordon JC. Ni(bpy)(cod): A Convenient Entryway into the Efficient Hydroboration of Ketones, Aldehydes, and Imines. Eur J Inorg Chem 2016. [DOI: 10.1002/ejic.201600143] [Citation(s) in RCA: 58] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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135
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Lastovickova DN, Bielawski CW. Diamidocarbene Induced B–H Activation: A New Class of Initiator-Free Olefin Hydroboration Reagents. Organometallics 2016. [DOI: 10.1021/acs.organomet.5b00997] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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136
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Xu G, Lüthy M, Habegger J, Renaud P. Homologation Strategy for the Generation of 1-Chloroalkyl Radicals from Organoboranes. J Org Chem 2016; 81:1506-19. [DOI: 10.1021/acs.joc.5b02610] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Gong Xu
- Department of Chemistry and
Biochemistry, University of Bern, Freiestrasse 3, CH-3012 Bern, Switzerland
| | - Monique Lüthy
- Department of Chemistry and
Biochemistry, University of Bern, Freiestrasse 3, CH-3012 Bern, Switzerland
| | - Jacqueline Habegger
- Department of Chemistry and
Biochemistry, University of Bern, Freiestrasse 3, CH-3012 Bern, Switzerland
| | - Philippe Renaud
- Department of Chemistry and
Biochemistry, University of Bern, Freiestrasse 3, CH-3012 Bern, Switzerland
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137
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Shoba VM, Thacker NC, Bochat AJ, Takacs JM. Synthesis of Chiral Tertiary Boronic Esters by Oxime-Directed Catalytic Asymmetric Hydroboration. Angew Chem Int Ed Engl 2016; 55:1465-9. [PMID: 26662460 PMCID: PMC4878850 DOI: 10.1002/anie.201509137] [Citation(s) in RCA: 81] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2015] [Indexed: 11/11/2022]
Abstract
Chiral boronic esters are useful intermediates in asymmetric synthesis. We have previously shown that carbonyl-directed catalytic asymmetric hydroboration (CAHB) is an efficient approach to the synthesis of functionalized primary and secondary chiral boronic esters. We now report that the oxime-directed CAHB of alkyl-substituted methylidene and trisubstituted alkene substrates by pinacolborane (pinBH) affords oxime-containing chiral tertiary boronic esters with yields up to 87% and enantiomeric ratios up to 96:4 e.r. The utility of the method is demonstrated by the formation of chiral diols and O-substituted hydroxylamines, the generation of quaternary carbon stereocenters through carbon-carbon coupling reactions, and the preparation of chiral 3,4,4-trisubstituted isoxazolines.
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Affiliation(s)
- Veronika M Shoba
- Department of Chemistry, University of Nebraska-Lincoln, 807 Hamilton Hall, Lincoln, NE, 68588-0304, USA
| | - Nathan C Thacker
- Department of Chemistry, University of Nebraska-Lincoln, 807 Hamilton Hall, Lincoln, NE, 68588-0304, USA
| | - Andrew J Bochat
- Department of Chemistry, University of Nebraska-Lincoln, 807 Hamilton Hall, Lincoln, NE, 68588-0304, USA
| | - James M Takacs
- Department of Chemistry, University of Nebraska-Lincoln, 807 Hamilton Hall, Lincoln, NE, 68588-0304, USA.
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138
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Eleazer BJ, Smith MD, Peryshkov DV. Metal- and Ligand-Centered Reactivity of meta-Carboranyl-Backbone Pincer Complexes of Rhodium. Organometallics 2016. [DOI: 10.1021/acs.organomet.5b00807] [Citation(s) in RCA: 50] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Bennett J. Eleazer
- Department of Chemistry and
Biochemistry, University of South Carolina, 631 Sumter Street, Columbia, South Carolina 29208, United States
| | - Mark D. Smith
- Department of Chemistry and
Biochemistry, University of South Carolina, 631 Sumter Street, Columbia, South Carolina 29208, United States
| | - Dmitry V. Peryshkov
- Department of Chemistry and
Biochemistry, University of South Carolina, 631 Sumter Street, Columbia, South Carolina 29208, United States
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139
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Cuenca AB, Fernández E. Rhodium-Catalyzed C–B Bond Formation. TOP ORGANOMETAL CHEM 2016. [DOI: 10.1007/3418_2016_168] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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140
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Wu C, Wu G, Zhang Y, Wang J. One-carbon homologation of arylboronic acids: a convenient approach to the synthesis of pinacol benzylboronates. Org Chem Front 2016. [DOI: 10.1039/c6qo00141f] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
A transition-metal-free method for the synthesis of benzylic boronate esters with arylboronic acids and trimethylsilyldiazomethane (TMSCHN2) has been developed.
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Affiliation(s)
- Chaoqiang Wu
- Beijing National Laboratory of Molecular Sciences (BNLMS)
- Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education
- College of Chemistry
- Peking University
- Beijing 100871
| | - Guojiao Wu
- Beijing National Laboratory of Molecular Sciences (BNLMS)
- Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education
- College of Chemistry
- Peking University
- Beijing 100871
| | - Yan Zhang
- Beijing National Laboratory of Molecular Sciences (BNLMS)
- Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education
- College of Chemistry
- Peking University
- Beijing 100871
| | - Jianbo Wang
- Beijing National Laboratory of Molecular Sciences (BNLMS)
- Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education
- College of Chemistry
- Peking University
- Beijing 100871
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141
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Iwamoto H, Kubota K, Ito H. Highly selective Markovnikov hydroboration of alkyl-substituted terminal alkenes with a phosphine–copper(i) catalyst. Chem Commun (Camb) 2016; 52:5916-9. [DOI: 10.1039/c6cc00782a] [Citation(s) in RCA: 56] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new method has been developed for the Markovnikov hydroboration of alkyl-substituted terminal alkenes. The use of bulky bisphosphine–copper(i) catalyst system resulted in high regioselectivity to afford the corresponding secondary alkylboronates (branch/linear = 92 : 8–97 : 3).
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Affiliation(s)
- Hiroaki Iwamoto
- Division of Applied Chemistry
- Graduate School of Engineering
- Hokkaido University
- Sapporo
- Japan
| | - Koji Kubota
- Division of Applied Chemistry
- Graduate School of Engineering
- Hokkaido University
- Sapporo
- Japan
| | - Hajime Ito
- Division of Applied Chemistry
- Graduate School of Engineering
- Hokkaido University
- Sapporo
- Japan
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142
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Shoba VM, Thacker NC, Bochat AJ, Takacs JM. Synthesis of Chiral Tertiary Boronic Esters by Oxime-Directed Catalytic Asymmetric Hydroboration. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201509137] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Veronika M. Shoba
- Department of Chemistry; University of Nebraska-Lincoln; 807 Hamilton Hall Lincoln NE 68588-0304 USA
| | - Nathan C. Thacker
- Department of Chemistry; University of Nebraska-Lincoln; 807 Hamilton Hall Lincoln NE 68588-0304 USA
| | - Andrew J. Bochat
- Department of Chemistry; University of Nebraska-Lincoln; 807 Hamilton Hall Lincoln NE 68588-0304 USA
| | - James M. Takacs
- Department of Chemistry; University of Nebraska-Lincoln; 807 Hamilton Hall Lincoln NE 68588-0304 USA
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143
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Kaithal A, Chatterjee B, Gunanathan C. Ruthenium Catalyzed Selective Hydroboration of Carbonyl Compounds. Org Lett 2015; 17:4790-3. [DOI: 10.1021/acs.orglett.5b02352] [Citation(s) in RCA: 84] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Akash Kaithal
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), Bhubaneswar-751 005, India
| | - Basujit Chatterjee
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), Bhubaneswar-751 005, India
| | - Chidambaram Gunanathan
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), Bhubaneswar-751 005, India
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144
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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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145
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Abstract
This communication demonstrates the first catalytic aminoboration of C-C π bonds by B-N σ bonds and its application to the synthesis of 3-borylated indoles. The regiochemistry and broad functional group compatibility of this addition reaction enable substitution patterns that are incompatible with major competing technologies. This aminoboration reaction effects the formation of C-B and C-N bonds in a single step from aminoboronic esters, which are simple starting materials available on the gram scale. This reaction generates synthetically valuable N-heterocyclic organoboron compounds as potential building blocks for drug discovery. The working mechanistic hypothesis involves a bifunctional Lewis acid/base catalysis strategy involving the combination of a carbophilic gold cation and a trifluoroacetate anion that activate the C-C π bond and the B-N σ bond simultaneously.
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Affiliation(s)
- Eugene Chong
- Department of Chemistry, University of California, Irvine, California 92697-2025, United States
| | - Suzanne A Blum
- Department of Chemistry, University of California, Irvine, California 92697-2025, United States
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146
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Hirner JJ, Blum SA. NMR spectroscopy studies of electronic effects and equilibrium in the organogold-to-boron transmetalation reaction and studies towards its application to the alkoxyboration addition of boron-oxygen σ bonds to alkynes. Tetrahedron 2015; 71:4445-4449. [PMID: 30344348 DOI: 10.1016/j.tet.2015.04.019] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Electronic effects in the transmetalation of an aryl group from gold to boron were investigated by NMR spectroscopy. The transmetalation reaction is more facile for increasingly electrophilic boron reagents and is in equilibrium under certain conditions. Observed tetracoordinate boronate compounds suggest a two-step, associative transmetalation reaction mechanism in which the organogold complex first delivers a nucleophilic phenyl group to the empty p orbital of boron. For certain substrates, this tetracoordinate intermediate decomposes to the tricordinate, final transmetallation product, and in others this tricordinate species remains in equilibrium with a tetracoordinate anionic boron compound. Experimental and theoretical investigations into the extension of this transmetalation reaction from a mechanistic step in our previously reported intramolecular gold-catalyzed addition of boron-oxygen σ bonds across alkynes to an intermolecular variant are discussed.2014 Elsevier Ltd. All rights reserved.
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Affiliation(s)
- Joshua J Hirner
- University of California-Irvine, Department of Chemistry, 1102 Natural Science 2, Irvine, CA 92697-2025, USA
| | - Suzanne A Blum
- University of California-Irvine, Department of Chemistry, 1102 Natural Science 2, Irvine, CA 92697-2025, USA
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147
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Thacker NC, Shoba VM, Geis AE, Takacs JM. Surprisingly Facile C-H Activation in the Course of Oxime-Directed Catalytic Asymmetric Hydroboration. Tetrahedron Lett 2015; 56:3306-3310. [PMID: 26120214 DOI: 10.1016/j.tetlet.2014.12.076] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
Deuterium-labeling studies carried out in conjunction with investigations into the directed catalytic asymmetric hydroboration of unsaturated oxime ethers reveal a surprisingly facile ortho-metallation or σ-bond metathesis pathway that that diverts the expected course of CAHB to a tandem C-H activation/hydroboration reaction pathway.
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Affiliation(s)
- Nathan C Thacker
- Department of Chemistry, University of Nebraska-Lincoln, Lincoln, NE 68588 USA
| | - Veronika M Shoba
- Department of Chemistry, University of Nebraska-Lincoln, Lincoln, NE 68588 USA
| | - Andrew E Geis
- Department of Chemistry, University of Nebraska-Lincoln, Lincoln, NE 68588 USA
| | - James M Takacs
- Department of Chemistry, University of Nebraska-Lincoln, Lincoln, NE 68588 USA
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148
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Ely RJ, Yu Z, Morken JP. Diastereoselective Ni-catalyzed 1,4-hydroboration of chiral dienols. Tetrahedron Lett 2015; 56:3402-3405. [PMID: 26028782 DOI: 10.1016/j.tetlet.2015.01.123] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
The Ni-catalyzed hydroboration of dienols occurs in a 1,4 fashion and delivers a syn-propionate motif in high diastereoselectivity and with a stereodefined trisubstituted crotylboronic ester. The boronic ester can be further manipulated to provide carbon-carbon or carbon-oxygen bonds.
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Affiliation(s)
- Robert J Ely
- Department of Chemistry, Merkert Chemistry Center, Boston College, Chestnut Hill, MA 02467
| | - Zhiyong Yu
- Department of Chemistry, Merkert Chemistry Center, Boston College, Chestnut Hill, MA 02467
| | - James P Morken
- Department of Chemistry, Merkert Chemistry Center, Boston College, Chestnut Hill, MA 02467
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149
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Hu N, Zhao G, Zhang Y, Liu X, Li G, Tang W. Synthesis of Chiral α-Amino Tertiary Boronic Esters by Enantioselective Hydroboration of α-Arylenamides. J Am Chem Soc 2015; 137:6746-9. [DOI: 10.1021/jacs.5b03760] [Citation(s) in RCA: 151] [Impact Index Per Article: 16.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Naifu Hu
- State Key Laboratory of Bio-Organic
and Natural Products Chemistry and Collaborative Innovation Center
of Chemistry for life Sciences, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Ling Ling Road, Shanghai 200032, China
| | - Guoqing Zhao
- State Key Laboratory of Bio-Organic
and Natural Products Chemistry and Collaborative Innovation Center
of Chemistry for life Sciences, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Ling Ling Road, Shanghai 200032, China
| | - Yuanyuan Zhang
- State Key Laboratory of Bio-Organic
and Natural Products Chemistry and Collaborative Innovation Center
of Chemistry for life Sciences, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Ling Ling Road, Shanghai 200032, China
| | - Xiangqian Liu
- State Key Laboratory of Bio-Organic
and Natural Products Chemistry and Collaborative Innovation Center
of Chemistry for life Sciences, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Ling Ling Road, Shanghai 200032, China
| | - Guangyu Li
- State Key Laboratory of Bio-Organic
and Natural Products Chemistry and Collaborative Innovation Center
of Chemistry for life Sciences, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Ling Ling Road, Shanghai 200032, China
| | - Wenjun Tang
- State Key Laboratory of Bio-Organic
and Natural Products Chemistry and Collaborative Innovation Center
of Chemistry for life Sciences, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Ling Ling Road, Shanghai 200032, China
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150
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Joannou MV, Moyer BS, Meek SJ. Enantio- and Diastereoselective Synthesis of 1,2-Hydroxyboronates through Cu-Catalyzed Additions of Alkylboronates to Aldehydes. J Am Chem Soc 2015; 137:6176-9. [DOI: 10.1021/jacs.5b03477] [Citation(s) in RCA: 125] [Impact Index Per Article: 13.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Matthew V. Joannou
- Department of Chemistry, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599-3290, United States
| | - Brandon S. Moyer
- Department of Chemistry, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599-3290, United States
| | - Simon J. Meek
- Department of Chemistry, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599-3290, United States
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