1
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Seo CB, Yoon WS, Yun J. Asymmetric Conjugate Addition of Vinyl Arene-Derived Chiral Benzylcopper Nucleophiles. Org Lett 2024; 26:8340-8344. [PMID: 39303154 DOI: 10.1021/acs.orglett.4c03075] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/22/2024]
Abstract
We report the copper-catalyzed asymmetric conjugate addition of vinyl arene-derived nucleophiles to α,β-unsaturated diesters. Due to the high electrophilicity of α,β-unsaturated diesters toward nucleophilic copper catalysts, inclusion of vinyl arenes as pronucleophiles is challenging due to chemoselectivity issues in a multicomponent reaction compared with those of other successful examples of dienes, allenes, and enynes. In this method, chemoselective in situ generation of a chiral benzylic copper intermediate and its stereoselective addition to α,β-unsaturated diesters provided organoboron adducts with contiguous stereogenic centers with good levels of diastereoselectivity and enantioselectivity (≤85:15 diastereomeric ratio and 99% enantiomeric excess, respectively).
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Affiliation(s)
- Cham Bi Seo
- Department of Chemistry, Sungkyunkwan University, Suwon 16419, Korea
| | - Wan Seok Yoon
- Department of Chemistry, Sungkyunkwan University, Suwon 16419, Korea
| | - Jaesook Yun
- Department of Chemistry, Sungkyunkwan University, Suwon 16419, Korea
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2
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Wang S, Chen K, Niu J, Guo X, Yuan X, Yin J, Zhu B, Shi D, Guan W, Xiong T, Zhang Q. Copper-Catalyzed Regiodivergent Asymmetric Difunctionalization of Terminal Alkynes. Angew Chem Int Ed Engl 2024:e202410833. [PMID: 38923633 DOI: 10.1002/anie.202410833] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2024] [Revised: 06/23/2024] [Accepted: 06/24/2024] [Indexed: 06/28/2024]
Abstract
We herein describe the first example of ligand-controlled, copper-catalyzed regiodivergent asymmetric difunctionalization of terminal alkynes through a cascade hydroboration and hydroallylation process. The catalytic system, consisting of (R)-DTBM-Segphos and CuBr, could efficiently achieve asymmetric 1,1-difunctionalization of aryl terminal alkynes, while ligand switching to (S,S)-Ph-BPE could result in asymmetric 1,2-difunctionalization exclusively. In addition, alkyl substituted terminal alkynes, especially industrially relevant acetylene and propyne, were also valid feedstocks for asymmetric 1,1-difunctionalization. This protocol is characterized by good functional group tolerance, a broad scope of substrates (>150 examples), and mild reaction conditions. We also showcase the value of this method in the late-stage functionalization of complicated bioactive molecules and simplifying the synthetic routes toward the key intermediacy of natural product (bruguierol A). Mechanistic studies combined with DFT calculations provide insight into the mechanism and origins of this ligand-controlled regio- and stereoselectivity.
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Affiliation(s)
- Simin Wang
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Department of Chemistry, Northeast Normal University, Changchun, 130024, China
| | - Kexin Chen
- Institute of Functional Material Chemistry, Department of Chemistry, Northeast Normal University, Changchun, 130024, China
| | - Junbo Niu
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Department of Chemistry, Northeast Normal University, Changchun, 130024, China
| | - Xiaobing Guo
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Department of Chemistry, Northeast Normal University, Changchun, 130024, China
| | - Xiuping Yuan
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Department of Chemistry, Northeast Normal University, Changchun, 130024, China
| | - Jianjun Yin
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Department of Chemistry, Northeast Normal University, Changchun, 130024, China
| | - Bo Zhu
- Institute of Functional Material Chemistry, Department of Chemistry, Northeast Normal University, Changchun, 130024, China
| | - Dazhen Shi
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Department of Chemistry, Northeast Normal University, Changchun, 130024, China
| | - Wei Guan
- Institute of Functional Material Chemistry, 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
- State Key Laboratory of Organometallic Chemistry Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai, 200032, China
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3
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Chen M, Gu YW, Deng W, Xu ZY. Mechanism and Origins of Regio- and Stereoselective Alkylboration of Endocyclic Olefins Enabled by Nickel Catalysis. J Org Chem 2023; 88:14115-14130. [PMID: 37766467 DOI: 10.1021/acs.joc.3c01676] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/29/2023]
Abstract
The Ni-catalyzed alkylboration of endocyclic olefins is a stereo- and regioselective approach for the synthesis of boron-containing compounds. We report a detailed density functional theory (DFT) study to elucidate the mechanism and origins of the stereo-, chemo-, and regioselectivity of alkylboration of endocyclic olefins enabled by nickel catalysis. The alkylboration proceeds via the migratory insertion of alkenes, β-H elimination of the Ni(II) complex, subsequent migratory insertion leading to a new Ni(II) complex, combined with an alkyl radical, and reductive eliminations. The electronic effects of the endocyclic olefins synergistically control the regioselectivity toward the C1- and C2-position boration. In C1-position boration, a more electron-deficient carbon atom tends to combine with an electron-rich -Bpin group and leads to C1-position boration products. The stereoselectivity is influenced by the solvent effect, and the interaction between the substrate and Ni-catalyzed groups, the low-polarity solvent 1,4-dioxane, and a favorable steric hindrance effect result in the cis-alkylboration product. Chemoselectivity toward 1,3-alkylboration results from the steric hindrance effects of the -Bpin group.
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Affiliation(s)
- Man Chen
- School of Chemical and Environmental Engineering, Shanghai Institute of Technology, Shanghai 201418, P. R. China
| | - Yi-Wen Gu
- School of Chemical and Environmental Engineering, Shanghai Institute of Technology, Shanghai 201418, P. R. China
| | - Wei Deng
- School of Chemical and Environmental Engineering, Shanghai Institute of Technology, Shanghai 201418, P. R. China
| | - Zheng-Yang Xu
- School of Chemical and Environmental Engineering, Shanghai Institute of Technology, Shanghai 201418, P. R. China
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4
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Liu S, Qian YS, Xu JL, Xu L, Xu YH. Copper-Catalyzed Regio- and Stereoselective Three-Component Coupling of Allenyl Ethers with gem-Dichlorocyclobutenones and B 2pin 2. Org Lett 2023. [PMID: 37289963 DOI: 10.1021/acs.orglett.3c01515] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The three-component coupling method for regio- and stereoselective difunctionalization of allenes with allenyl ethers, bis(pinacolato)diboron, and gem-dichlorocyclobutenones as electrophiles was reported, yielding a variety of highly functionalized cyclobutenone products tethering with an alkenylborate fragment. The polysubstituted cyclobutenone products also underwent diverse transformations.
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Affiliation(s)
- Shuai Liu
- Department of Chemistry, University of Science and Technology of China, Hefei 230026, P. R. China
| | - Yi-Sen Qian
- Department of Chemistry, University of Science and Technology of China, Hefei 230026, P. R. China
| | - Jian-Lin Xu
- Department of Chemistry, University of Science and Technology of China, Hefei 230026, P. R. China
| | - Lei Xu
- Department of Chemistry, University of Science and Technology of China, Hefei 230026, P. R. China
| | - Yun-He Xu
- Department of Chemistry, University of Science and Technology of China, Hefei 230026, P. R. China
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5
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Chaves-Pouso A, Álvarez-Constantino AM, Fañanás-Mastral M. Enantio- and Diastereoselective Copper-Catalyzed Allylboration of Alkynes with Allylic gem-Dichlorides. Angew Chem Int Ed Engl 2022; 61:e202117696. [PMID: 35263483 PMCID: PMC9314970 DOI: 10.1002/anie.202117696] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2021] [Indexed: 11/06/2022]
Abstract
Allylic gem-dichlorides are shown to be efficient substrates for catalytic asymmetric allylboration of alkynes. The method employs a chiral NHC-Cu catalyst capable of generating in a single step chiral skipped dienes bearing a Z-alkenyl chloride, a trisubstituted E-alkenyl boronate and a bis-allylic stereocenter with excellent levels of chemo-, regio- enantio- and diastereoselectivity. This high degree of functionalization makes these products versatile building blocks as illustrated with the synthesis of several optically active compounds. DFT calculations support the key presence of a metal cation bridge ligand-substrate interaction and account for the stereoselectivity outcome.
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Affiliation(s)
- Andrea Chaves-Pouso
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CiQUS), Departamento de Química Orgánica, Universidade de Santiago de Compostela, 15782, Santiago de Compostela, Spain
| | - Andrés M Álvarez-Constantino
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CiQUS), Departamento de Química Orgánica, Universidade de Santiago de Compostela, 15782, Santiago de Compostela, Spain
| | - Martín Fañanás-Mastral
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CiQUS), Departamento de Química Orgánica, Universidade de Santiago de Compostela, 15782, Santiago de Compostela, Spain
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6
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Chaves‐Pouso A, Álvarez‐Constantino AM, Fañanás‐Mastral M. Enantio‐ and Diastereoselective Copper‐Catalyzed Allylboration of Alkynes with Allylic
gem
‐Dichlorides. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202117696] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Andrea Chaves‐Pouso
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CiQUS) Departamento de Química Orgánica Universidade de Santiago de Compostela 15782 Santiago de Compostela Spain
| | - Andrés M. Álvarez‐Constantino
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CiQUS) Departamento de Química Orgánica Universidade de Santiago de Compostela 15782 Santiago de Compostela Spain
| | - Martín Fañanás‐Mastral
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CiQUS) Departamento de Química Orgánica Universidade de Santiago de Compostela 15782 Santiago de Compostela Spain
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7
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Zhang Q, Zhou S, Shi C, Yin L. Catalytic Asymmetric Allylic Substitution with Copper(I) Homoenolates Generated from Cyclopropanols. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202110709] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Qi Zhang
- CAS Key Laboratory of Synthetic Chemistry of Natural Substances Center for Excellence in Molecular Synthesis Shanghai Institute of Organic Chemistry University of Chinese Academy of Sciences Chinese Academy of Sciences 345 Lingling Road Shanghai 200032 China
| | - Si‐Wei Zhou
- CAS Key Laboratory of Synthetic Chemistry of Natural Substances Center for Excellence in Molecular Synthesis Shanghai Institute of Organic Chemistry University of Chinese Academy of Sciences Chinese Academy of Sciences 345 Lingling Road Shanghai 200032 China
| | - Chang‐Yun Shi
- CAS Key Laboratory of Synthetic Chemistry of Natural Substances Center for Excellence in Molecular Synthesis Shanghai Institute of Organic Chemistry University of Chinese Academy of Sciences Chinese Academy of Sciences 345 Lingling Road Shanghai 200032 China
| | - Liang Yin
- CAS Key Laboratory of Synthetic Chemistry of Natural Substances Center for Excellence in Molecular Synthesis Shanghai Institute of Organic Chemistry University of Chinese Academy of Sciences Chinese Academy of Sciences 345 Lingling Road Shanghai 200032 China
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8
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Zhang Q, Zhou SW, Shi CY, Yin L. Catalytic Asymmetric Allylic Substitution with Copper(I) Homoenolates Generated from Cyclopropanols. Angew Chem Int Ed Engl 2021; 60:26351-26356. [PMID: 34617380 DOI: 10.1002/anie.202110709] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2021] [Revised: 09/30/2021] [Indexed: 12/23/2022]
Abstract
By using copper(I) homoenolates as nucleophiles, which are generated through the ring-opening of 1-substituted cyclopropane-1-ols, a catalytic asymmetric allylic substitution with allyl phosphates is achieved in high to excellent yields with high enantioselectivity. Both 1-substituted cyclopropane-1-ols and allylic phosphates enjoy broad substrate scopes. Remarkably, various functional groups, such as ether, ester, tosylate, imide, alcohol, nitro, and carbamate are well tolerated. Moreover, the present method is nicely extended to the asymmetric construction of quaternary carbon centers. Some control experiments argue against a radical-based reaction mechanism and a catalytic cycle based on a two-electron process is proposed. Finally, the synthetic utilities of the product are showcased by means of the transformations of the terminal olefin group and the ketone group.
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Affiliation(s)
- Qi Zhang
- CAS Key Laboratory of Synthetic Chemistry of Natural Substances, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai, 200032, China
| | - Si-Wei Zhou
- CAS Key Laboratory of Synthetic Chemistry of Natural Substances, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai, 200032, China
| | - Chang-Yun Shi
- CAS Key Laboratory of Synthetic Chemistry of Natural Substances, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai, 200032, China
| | - Liang Yin
- CAS Key Laboratory of Synthetic Chemistry of Natural Substances, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai, 200032, China
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9
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Volochnyuk DM, Gorlova AO, Grygorenko OO. Saturated Boronic Acids, Boronates, and Trifluoroborates: An Update on Their Synthetic and Medicinal Chemistry. Chemistry 2021; 27:15277-15326. [PMID: 34499378 DOI: 10.1002/chem.202102108] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2021] [Indexed: 12/13/2022]
Abstract
This review discusses recent advances in the chemistry of saturated boronic acids, boronates, and trifluoroborates. Applications of the title compounds in the design of boron-containing drugs are surveyed, with special emphasis on α-amino boronic derivatives. A general overview of saturated boronic compounds as modern tools to construct C(sp3 )-C and C(sp3 )-heteroatom bonds is given, including recent developments in the Suzuki-Miyaura and Chan-Lam cross-couplings, single-electron-transfer processes including metallo- and organocatalytic photoredox reactions, and transformations of boron "ate" complexes. Finally, an attempt to summarize the current state of the art in the synthesis of saturated boronic acids, boronates, and trifluoroborates is made, with a brief mention of the "classical" methods (transmetallation of organolithium/magnesium reagents with boron species, anti-Markovnikov hydroboration of alkenes, and the modification of alkenyl boron compounds) and a special focus on recent methodologies (boronation of alkyl (pseudo)halides, derivatives of carboxylic acids, alcohols, and primary amines, boronative C-H activation, novel approaches to alkene hydroboration, and 1,2-metallate-type rearrangements).
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Affiliation(s)
- Dmitriy M Volochnyuk
- Enamine Ltd. (www.enamine.net), Chervonotkatska 78, Kyiv, 02094, Ukraine.,Taras Shevchenko National University of Kyiv, Volodymyrska Street 60, Kyiv, 01601, Ukraine.,Institute of Organic Chemistry, National Academy of Sciences of Ukraine, Murmanska Street 5, Kyiv, 02094, Ukraine
| | - Alina O Gorlova
- Institute of Organic Chemistry, National Academy of Sciences of Ukraine, Murmanska Street 5, Kyiv, 02094, Ukraine
| | - Oleksandr O Grygorenko
- Enamine Ltd. (www.enamine.net), Chervonotkatska 78, Kyiv, 02094, Ukraine.,Taras Shevchenko National University of Kyiv, Volodymyrska Street 60, Kyiv, 01601, Ukraine
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10
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Kanti Das K, Manna S, Panda S. Transition metal catalyzed asymmetric multicomponent reactions of unsaturated compounds using organoboron reagents. Chem Commun (Camb) 2021; 57:441-459. [PMID: 33350405 DOI: 10.1039/d0cc06460b] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Asymmetric multicomponent reactions allow stitching several functional groups in an enantioselective and atom economical manner. The introduction of boron-based reagents as a multicomponent coupling partner has its own merits. In addition to being non-toxic and highly stable, organoboron compounds can be easily converted to other functional groups in a stereoselective manner. In the last decade several transition metal catalyzed asymmetric multicomponent strategies have been evolved using boron based reagents. This review will discuss the merits and scope of multicomponent strategies based on their difference in the reaction mechanism and transition metals involved.
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Affiliation(s)
- Kanak Kanti Das
- Department of Chemistry, Indian Institute of Technology Kharagpur, Kharagpur 721302, India.
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11
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Baughman NN, Akhmedov NG, Petersen JL, Popp BV. Experimental and Computational Analysis of CO2 Addition Reactions Relevant to Copper-Catalyzed Boracarboxylation of Vinyl Arenes: Evidence for a Phosphine-Promoted Mechanism. Organometallics 2020. [DOI: 10.1021/acs.organomet.0c00488] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Notashia N. Baughman
- C. Eugene Bennett Department of Chemistry, West Virginia University, 100 Prospect Street, Morgantown, West Virginia 26506, United States
| | - Novruz G. Akhmedov
- C. Eugene Bennett Department of Chemistry, West Virginia University, 100 Prospect Street, Morgantown, West Virginia 26506, United States
| | - Jeffrey L. Petersen
- C. Eugene Bennett Department of Chemistry, West Virginia University, 100 Prospect Street, Morgantown, West Virginia 26506, United States
| | - Brian V. Popp
- C. Eugene Bennett Department of Chemistry, West Virginia University, 100 Prospect Street, Morgantown, West Virginia 26506, United States
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12
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Shen BX, Min XT, Hu YC, Qian LL, Yang SN, Wan B, Chen QA. Copper-catalyzed boroacylation of allenes to access tetrasubstituted vinylboronates. Org Biomol Chem 2020; 18:9253-9260. [PMID: 33150922 DOI: 10.1039/d0ob02008g] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
A distinct copper-catalyzed boroacylation of allenes with acyl chlorides and bis(pinacolato)diboron is developed. For aromatic acyl chlorides, 1,2-boroacylation of allenes readily takes place, leading to the formation of tetrasubstituted vinylboronates with exclusive (E)-stereoselectivity. In comparison, the employment of alkyl acyl chlorides as electrophiles alters the selectivity to 2,3-boroacylated products. Additionally, the product can easily undergo Suzuki-Miyaura cross-coupling to afford tetrasubstituted alkene with complete retention of the configuration.
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Affiliation(s)
- Bing-Xue Shen
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, China.
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13
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Whyte A, Torelli A, Mirabi B, Zhang A, Lautens M. Copper-Catalyzed Borylative Difunctionalization of π-Systems. ACS Catal 2020. [DOI: 10.1021/acscatal.0c02758] [Citation(s) in RCA: 89] [Impact Index Per Article: 22.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Andrew Whyte
- Davenport Research Laboratories, Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario M5S 3H6, Canada
| | - Alexa Torelli
- Davenport Research Laboratories, Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario M5S 3H6, Canada
| | - Bijan Mirabi
- Davenport Research Laboratories, Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario M5S 3H6, Canada
| | - Anji Zhang
- Davenport Research Laboratories, Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario M5S 3H6, Canada
| | - Mark Lautens
- Davenport Research Laboratories, Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario M5S 3H6, Canada
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14
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Xue W, Oestreich M. Beyond Carbon: Enantioselective and Enantiospecific Reactions with Catalytically Generated Boryl- and Silylcopper Intermediates. ACS CENTRAL SCIENCE 2020; 6:1070-1081. [PMID: 32724842 PMCID: PMC7379128 DOI: 10.1021/acscentsci.0c00738] [Citation(s) in RCA: 59] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/05/2020] [Indexed: 06/11/2023]
Abstract
Catalytic asymmetric C-C bond formation with alkylcopper intermediates as carbon nucleophiles is now textbook chemistry. Related chemistry with boron and silicon nucleophiles where the boryl- and accordingly silylcopper intermediates are catalytically regenerated from bench-stable pronucleophiles had been underdeveloped for years or did not even exist until recently. Over the past decade, asymmetric copper catalysis employing those main-group elements as nucleophiles rapidly transformed into a huge field in its own right with an impressive breadth of enantioselective C-B and C-Si bond-forming reactions, respectively. Its current state of the art does not have to shy away from comparison with that of boron's and silicon's common neighbor in the periodic table, carbon. This Outlook is not meant to be a detailed summary of those manifold advances. It rather aims at providing a brief conceptual summary of what forms the basis of the latest exciting progress, especially in the area of three-component reactions and cross-coupling reactions.
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Affiliation(s)
| | - Martin Oestreich
- Institut für Chemie, Technische Universität Berlin, Strasse des 17. Juni 115, 10623 Berlin, Germany
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15
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Nagae H, Xia J, Kirillov E, Higashida K, Shoji K, Boiteau V, Zhang W, Carpentier JF, Mashima K. Asymmetric Allylic Alkylation of β-Ketoesters via C–N Bond Cleavage of N-Allyl-N-methylaniline Derivatives Catalyzed by a Nickel–Diphosphine System. ACS Catal 2020. [DOI: 10.1021/acscatal.0c01356] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Haruki Nagae
- Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka 560-8531, Japan
| | - Jingzhao Xia
- Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka 560-8531, Japan
- 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
| | - Evgueni Kirillov
- Institut des Sciences Chimiques de Rennes, Université Rennes, CNRS, ISCR, Université de Rennes 1, Rennes Cedex F-35042, France
| | - Kosuke Higashida
- Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka 560-8531, Japan
| | - Koya Shoji
- Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka 560-8531, Japan
| | - Valentin Boiteau
- Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka 560-8531, Japan
| | - Wanbin Zhang
- 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
| | - Jean-François Carpentier
- Institut des Sciences Chimiques de Rennes, Université Rennes, CNRS, ISCR, Université de Rennes 1, Rennes Cedex F-35042, France
| | - Kazushi Mashima
- Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka 560-8531, Japan
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16
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Liu Z, Gao Y, Zeng T, Engle KM. Transition-Metal-Catalyzed 1,2-Carboboration of Alkenes: Strategies, Mechanisms, and Stereocontrol. Isr J Chem 2020; 60:219-229. [PMID: 33785969 PMCID: PMC8006804 DOI: 10.1002/ijch.201900087] [Citation(s) in RCA: 72] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2019] [Indexed: 11/07/2022]
Abstract
During the past decade, many research groups have described catalytic methods for 1,2-carboboration, allowing access to structurally complex organoboronates from alkenes. Various transition metals, especially copper, palladium, and nickel, have been widely used in these reactions. This review summarizes advances in this field, with a special focus on the catalytic cycles involved in different metal-catalyzed carboboration reactions, as well as the regio- and stereochemical consequences of the underlying mechanisms. 1,2-Carboboration of other unsaturated systems, such as alkynes and allenes, are outside of the scope of this review.
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Affiliation(s)
- Zhen Liu
- Department of Chemistry, The Scripps Research Institute, La Jolla, CA 92307 (USA)
| | - Yang Gao
- Department of Chemistry, The Scripps Research Institute, La Jolla, CA 92307 (USA)
| | - Tian Zeng
- Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, CA 91125 (USA)
| | - Keary M Engle
- Department of Chemistry, The Scripps Research Institute, La Jolla, CA 92307 (USA)
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17
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Han JT, Kim ST, Baik MH, Yun J. Direct Stereoconvergent Allylation of Chiral Alkylcopper Nucleophiles with Racemic Allylic Phosphates. Chemistry 2020; 26:2592-2596. [PMID: 31788874 DOI: 10.1002/chem.201905361] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2019] [Indexed: 01/14/2023]
Abstract
Copper-catalyzed stereoconvergent allylation of chiral sp3 -hybridized carbon nucleophiles with a racemic mixture of acyclic secondary allylic phosphates is reported. In the presence of a copper-catalyst complexed with chiral BenzP* ligand, tandem coupling reaction of vinyl arenes, bis(pinacolato)diboron, and racemic allylic phosphates provided β-chiral alkylboronates possessing (E)-alkenyl moiety through a direct stereoconvergent allylic coupling with concomitant generation of a C(sp3 )-stereogenic center. A range of vinyl (hetero)arenes and secondary allylic phosphates bearing 1°, 2°, 3° alkyl and phenyl α-substituents were suitable for the reaction, forming products with high enantioselectivities up to 95 % ee. Density functional theory calculations were conducted in detail to elucidate the origin of the observed regioselectivity of borylcupration and stereoconvergent (E)-olefin formation from racemic allylic phosphates.
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Affiliation(s)
- Jung Tae Han
- Department of Chemistry, Sungkyunkwan University, Suwon, 16149, Korea
| | - Seoung-Tae Kim
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS), Daejeon, 34141, Korea
| | - Mu-Hyun Baik
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS), Daejeon, 34141, Korea
| | - Jaesook Yun
- Department of Chemistry, Sungkyunkwan University, Suwon, 16149, Korea
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18
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Hancock EN, Kuker EL, Tantillo DJ, Brown MK. Lessons in Strain and Stability: Enantioselective Synthesis of (+)-[5]-Ladderanoic Acid. Angew Chem Int Ed Engl 2020; 59:436-441. [PMID: 31650679 PMCID: PMC6923594 DOI: 10.1002/anie.201910901] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2019] [Revised: 10/14/2019] [Indexed: 11/07/2022]
Abstract
The synthesis of structurally complex and highly strained natural products provides unique challenges and unexpected opportunities for the development of new reactions and strategies. Herein, the synthesis of (+)-[5]-ladderanoic acid is reported. En route to the target, unusual and unexpected strain release driven transformations were uncovered. This occurrence required a drastic revision of the synthetic design that ultimately led to the development of a novel stepwise cyclobutane assembly by an allylboration/Zweifel olefination sequence.
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Affiliation(s)
- Erin N. Hancock
- Department of Chemistry, Indiana University, 800 E. Kirkwood Ave. Bloomington, IN 47401
| | - Erin L. Kuker
- Department of Chemistry, Indiana University, 800 E. Kirkwood Ave. Bloomington, IN 47401
| | - Dean J. Tantillo
- Department of Chemistry, University of California Davis, 1 Shields Ave. Davis, CA 95616
| | - M. Kevin Brown
- Department of Chemistry, Indiana University, 800 E. Kirkwood Ave. Bloomington, IN 47401
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19
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Fiorito D, Liu Y, Besnard C, Mazet C. Direct Access to Chiral Secondary Amides by Copper-Catalyzed Borylative Carboxamidation of Vinylarenes with Isocyanates. J Am Chem Soc 2019; 142:623-632. [DOI: 10.1021/jacs.9b12297] [Citation(s) in RCA: 45] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Daniele Fiorito
- Department of Organic Chemistry, University of Geneva, 30 quai Ernest Ansermet, 1211 Geneva, Switzerland
| | - Yangbin Liu
- Department of Organic Chemistry, University of Geneva, 30 quai Ernest Ansermet, 1211 Geneva, Switzerland
| | - Céline Besnard
- Laboratory of Crystallography, University of Geneva, 24 quai Ernest Ansermet, 1211 Geneva, Switzerland
| | - Clément Mazet
- Department of Organic Chemistry, University of Geneva, 30 quai Ernest Ansermet, 1211 Geneva, Switzerland
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20
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Rivera‐Chao E, Mitxelena M, Varela JA, Fañanás‐Mastral M. Copper‐Catalyzed Enantioselective Allylboration of Alkynes: Synthesis of Highly Versatile Multifunctional Building Blocks. Angew Chem Int Ed Engl 2019; 58:18230-18234. [DOI: 10.1002/anie.201910707] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2019] [Revised: 09/13/2019] [Indexed: 01/23/2023]
Affiliation(s)
- Eva Rivera‐Chao
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CiQUS)Departamento de Química OrgánicaUniversidade de Santiago de Compostela 15782 Santiago de Compostela Spain
| | - Maider Mitxelena
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CiQUS)Departamento de Química OrgánicaUniversidade de Santiago de Compostela 15782 Santiago de Compostela Spain
| | - Jesús A. Varela
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CiQUS)Departamento de Química OrgánicaUniversidade de Santiago de Compostela 15782 Santiago de Compostela Spain
| | - Martín Fañanás‐Mastral
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CiQUS)Departamento de Química OrgánicaUniversidade de Santiago de Compostela 15782 Santiago de Compostela Spain
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21
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Computational study of regiodivergent pathways in the copper-catalyzed borocyanation of 1,3-dienes: Mechanism and origin of regioselectivity. J Organomet Chem 2019. [DOI: 10.1016/j.jorganchem.2019.121014] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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22
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Liu Z, Chen J, Lu H, Li X, Gao Y, Coombs JR, Goldfogel MJ, Engle KM. Palladium(0)‐Catalyzed Directed
syn
‐1,2‐Carboboration and ‐Silylation: Alkene Scope, Applications in Dearomatization, and Stereocontrol by a Chiral Auxiliary. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201910304] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Zhen Liu
- Department of ChemistryThe Scripps Research Institute 10550 North Torrey Pines Road La Jolla California 92037 USA
| | - Jiahao Chen
- Department of ChemistryThe Scripps Research Institute 10550 North Torrey Pines Road La Jolla California 92037 USA
| | - Hou‐Xiang Lu
- Department of ChemistryThe Scripps Research Institute 10550 North Torrey Pines Road La Jolla California 92037 USA
| | - Xiaohan Li
- Department of ChemistryThe Scripps Research Institute 10550 North Torrey Pines Road La Jolla California 92037 USA
| | - Yang Gao
- Department of ChemistryThe Scripps Research Institute 10550 North Torrey Pines Road La Jolla California 92037 USA
| | - John R. Coombs
- Chemical DevelopmentBristol-Myers Squibb One Squibb Drive New Brunswick New Jersey 08903 USA
| | - Matthew J. Goldfogel
- Chemical DevelopmentBristol-Myers Squibb One Squibb Drive New Brunswick New Jersey 08903 USA
| | - Keary M. Engle
- Department of ChemistryThe Scripps Research Institute 10550 North Torrey Pines Road La Jolla California 92037 USA
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23
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Liu Z, Chen J, Lu HX, Li X, Gao Y, Coombs JR, Goldfogel MJ, Engle KM. Palladium(0)-Catalyzed Directed syn-1,2-Carboboration and -Silylation: Alkene Scope, Applications in Dearomatization, and Stereocontrol by a Chiral Auxiliary. Angew Chem Int Ed Engl 2019; 58:17068-17073. [PMID: 31538388 PMCID: PMC7337986 DOI: 10.1002/anie.201910304] [Citation(s) in RCA: 80] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2019] [Indexed: 11/08/2022]
Abstract
We report the development of palladium(0)-catalyzed syn-selective 1,2-carboboration and -silylation reactions of alkenes containing cleavable directing groups. With B2 pin2 or PhMe2 Si-Bpin as nucleophiles and aryl/alkenyl triflates as electrophiles, a broad range of mono-, di-, tri- and tetrasubstituted alkenes are compatible in these transformations. We further describe a directed dearomative 1,2-carboboration of electron-rich heteroarenes by employing this approach. Through use of a removable chiral directing group, we demonstrate the viability of achieving stereoinduction in Heck-type alkene 1,2-difunctionalization. This work introduces new avenues to access highly functionalized boronates and silanes with precise regio- and stereocontrol.
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Affiliation(s)
- Zhen Liu
- Department of Chemistry, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, California, 92037, USA
| | - Jiahao Chen
- Department of Chemistry, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, California, 92037, USA
| | - Hou-Xiang Lu
- Department of Chemistry, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, California, 92037, USA
| | - Xiaohan Li
- Department of Chemistry, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, California, 92037, USA
| | - Yang Gao
- Department of Chemistry, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, California, 92037, USA
| | - John R Coombs
- Chemical Development, Bristol-Myers Squibb, One Squibb Drive, New Brunswick, New Jersey, 08903, USA
| | - Matthew J Goldfogel
- Chemical Development, Bristol-Myers Squibb, One Squibb Drive, New Brunswick, New Jersey, 08903, USA
| | - Keary M Engle
- Department of Chemistry, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, California, 92037, USA
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24
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Hancock EN, Kuker EL, Tantillo DJ, Brown MK. Lessons in Strain and Stability: Enantioselective Synthesis of (+)‐[5]‐Ladderanoic Acid. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201910901] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Erin N. Hancock
- Department of Chemistry Indiana University 800 E. Kirkwood Ave. Bloomington IN 47401 USA
| | - Erin L. Kuker
- Department of Chemistry Indiana University 800 E. Kirkwood Ave. Bloomington IN 47401 USA
| | - Dean J. Tantillo
- Department of Chemistry University of California Davis 1 Shields Ave. Davis CA 95616 USA
| | - M. Kevin Brown
- Department of Chemistry Indiana University 800 E. Kirkwood Ave. Bloomington IN 47401 USA
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25
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Rivera‐Chao E, Mitxelena M, Varela JA, Fañanás‐Mastral M. Copper‐Catalyzed Enantioselective Allylboration of Alkynes: Synthesis of Highly Versatile Multifunctional Building Blocks. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201910707] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Eva Rivera‐Chao
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CiQUS)Departamento de Química OrgánicaUniversidade de Santiago de Compostela 15782 Santiago de Compostela Spain
| | - Maider Mitxelena
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CiQUS)Departamento de Química OrgánicaUniversidade de Santiago de Compostela 15782 Santiago de Compostela Spain
| | - Jesús A. Varela
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CiQUS)Departamento de Química OrgánicaUniversidade de Santiago de Compostela 15782 Santiago de Compostela Spain
| | - Martín Fañanás‐Mastral
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CiQUS)Departamento de Química OrgánicaUniversidade de Santiago de Compostela 15782 Santiago de Compostela Spain
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26
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Yang X, Kalita SJ, Maheshuni S, Huang YY. Recent advances on transition-metal-catalyzed asymmetric tandem reactions with organoboron reagents. Coord Chem Rev 2019. [DOI: 10.1016/j.ccr.2019.04.009] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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27
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Affiliation(s)
- Nuo-Yi Wu
- Key Laboratory of Science and Technology of Eco-Textiles, Ministry of Education, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, 2999 North Renmin Lu, Shanghai 201620, China
| | - Xiu-Hua Xu
- Key Laboratory of Organofluorine Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Science, Chinese Academy of Science, 345 Lingling Lu, Shanghai 200032, China
| | - Feng-Ling Qing
- Key Laboratory of Science and Technology of Eco-Textiles, Ministry of Education, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, 2999 North Renmin Lu, Shanghai 201620, China
- Key Laboratory of Organofluorine Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Science, Chinese Academy of Science, 345 Lingling Lu, Shanghai 200032, China
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28
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Wang B, Wang X, Yin X, Yu W, Liao Y, Ye J, Wang M, Liao J. Cu-Catalyzed S N2' Substitution of Propargylic Phosphates with Vinylarene-Derived Chiral Nucleophiles: Synthesis of Chiral Allenes. Org Lett 2019; 21:3913-3917. [PMID: 31074282 DOI: 10.1021/acs.orglett.9b00908] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
A new Cu-catalyzed enantioselective three-component (i.e., styrenes, B2pin2, and propargylic phosphates) allenylation via an SN2' substitution of propargylic electrophiles with vinylarene-derived chiral nucleophiles is presented. This method provides an efficient and enantioselective approach to access a range of optically pure di-(1,1-), tri-, and tetra-substituted allenes with α-central chirality and axial chirality in excellent chemo-, regio-, diastereo-, and enantioselectivities.
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Affiliation(s)
- Bing Wang
- Chengdu Institute of Biology , Chinese Academy of Sciences , Chengdu 610041 , China.,University of Chinese Academy of Sciences , Beijing 100049 , China
| | - Xihong Wang
- Chengdu Institute of Biology , Chinese Academy of Sciences , Chengdu 610041 , China.,University of Chinese Academy of Sciences , Beijing 100049 , China
| | - Xuemei Yin
- Chengdu Institute of Biology , Chinese Academy of Sciences , Chengdu 610041 , China.,University of Chinese Academy of Sciences , Beijing 100049 , China
| | - Wangzhi Yu
- Chengdu Institute of Biology , Chinese Academy of Sciences , Chengdu 610041 , China.,University of Chinese Academy of Sciences , Beijing 100049 , China
| | - Yang Liao
- Chengdu Institute of Biology , Chinese Academy of Sciences , Chengdu 610041 , China.,University of Chinese Academy of Sciences , Beijing 100049 , China
| | - Jialin Ye
- College of Chemical Engineering , Sichuan University Chengdu 610065 , China
| | - Min Wang
- Chengdu Institute of Biology , Chinese Academy of Sciences , Chengdu 610041 , China.,University of Chinese Academy of Sciences , Beijing 100049 , China
| | - Jian Liao
- Chengdu Institute of Biology , Chinese Academy of Sciences , Chengdu 610041 , China.,University of Chinese Academy of Sciences , Beijing 100049 , China.,College of Chemical Engineering , Sichuan University Chengdu 610065 , China
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29
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Han JT, Yun J. Asymmetric synthesis of α-chiral β-hydroxy allenes: copper-catalyzed γ-selective borylative coupling of vinyl arenes and propargyl phosphates. Chem Commun (Camb) 2019; 55:9813-9816. [PMID: 31360939 DOI: 10.1039/c9cc04165f] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Copper-catalyzed enantioselective coupling of vinyl arenes with bis(pinacolato)diboron (B2pin2) and propargylic phosphates is presented.
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Affiliation(s)
- Jung Tae Han
- Department of Chemistry
- Sungkyunkwan University
- Suwon 16419
- Korea
| | - Jaesook Yun
- Department of Chemistry
- Sungkyunkwan University
- Suwon 16419
- Korea
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30
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Wang D, Xue X, Houk KN, Shi Z. Mild Ring‐Opening 1,3‐Hydroborations of Non‐Activated Cyclopropanes. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201811036] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Di Wang
- State Key Laboratory of Coordination ChemistrySchool of Chemistry and Chemical EngineeringNanjing University Nanjing 210093 China
| | - Xiao‐Song Xue
- Department of Chemistry and BiochemistryUniversity of California Los Angeles CA 90095 USA
- State Key Laboratory of Elemento-organic ChemistryCollege of ChemistryNankai University Tianjin 300071 China
| | - Kendall N. Houk
- Department of Chemistry and BiochemistryUniversity of California Los Angeles CA 90095 USA
| | - Zhuangzhi Shi
- State Key Laboratory of Coordination ChemistrySchool of Chemistry and Chemical EngineeringNanjing University Nanjing 210093 China
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31
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Wang D, Xue X, Houk KN, Shi Z. Mild Ring‐Opening 1,3‐Hydroborations of Non‐Activated Cyclopropanes. Angew Chem Int Ed Engl 2018; 57:16861-16865. [DOI: 10.1002/anie.201811036] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2018] [Indexed: 12/15/2022]
Affiliation(s)
- Di Wang
- State Key Laboratory of Coordination ChemistrySchool of Chemistry and Chemical EngineeringNanjing University Nanjing 210093 China
| | - Xiao‐Song Xue
- Department of Chemistry and BiochemistryUniversity of California Los Angeles CA 90095 USA
- State Key Laboratory of Elemento-organic ChemistryCollege of ChemistryNankai University Tianjin 300071 China
| | - Kendall N. Houk
- Department of Chemistry and BiochemistryUniversity of California Los Angeles CA 90095 USA
| | - Zhuangzhi Shi
- State Key Laboratory of Coordination ChemistrySchool of Chemistry and Chemical EngineeringNanjing University Nanjing 210093 China
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32
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Sommer H, Marek I. Diastereo- and enantioselective copper catalyzed hydroallylation of disubstituted cyclopropenes. Chem Sci 2018; 9:6503-6508. [PMID: 30310580 PMCID: PMC6115688 DOI: 10.1039/c8sc02085j] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2018] [Accepted: 06/29/2018] [Indexed: 12/18/2022] Open
Abstract
A highly diastereo- and enantioselective protocol for the hydroallylation of 1,1- and 1,2-disubstituted cyclopropenes has been developed utilizing an in situ formed copper hydride. A variety of allyl electrophiles could be utilized yielding a diverse range of trisubstituted cyclopropanes. Finally a preliminary enantioselective variant could be established employing a recently described P-stereogenic xantphos derivative as ligand.
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Affiliation(s)
- Heiko Sommer
- The Mallat Family Laboratory of Organic Chemistry , Schulich Faculty of Chemistry , Technion-Israel Institute of Technology , Haifa , 3200009 Israel .
| | - Ilan Marek
- The Mallat Family Laboratory of Organic Chemistry , Schulich Faculty of Chemistry , Technion-Israel Institute of Technology , Haifa , 3200009 Israel .
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33
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Zhang JS, Liu L, Chen T, Han LB. Transition-Metal-Catalyzed Three-Component Difunctionalizations of Alkenes. Chem Asian J 2018; 13:2277-2291. [DOI: 10.1002/asia.201800647] [Citation(s) in RCA: 158] [Impact Index Per Article: 26.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2018] [Revised: 06/12/2018] [Indexed: 01/26/2023]
Affiliation(s)
- Ji-Shu Zhang
- College of Chemistry and Chemical engineering; Hunan University; Changsha Hunan 410082 China
| | - Long Liu
- Key Laboratory of Ministry of Education for Advanced Materials in Tropical Island Resources; College of Materials and Chemical Engineering; Hainan University; Haikou, Hainan 570228 China
| | - Tieqiao Chen
- College of Chemistry and Chemical engineering; Hunan University; Changsha Hunan 410082 China
- Key Laboratory of Ministry of Education for Advanced Materials in Tropical Island Resources; College of Materials and Chemical Engineering; Hainan University; Haikou, Hainan 570228 China
| | - Li-Biao Han
- National Institute of Advanced Industrial Science and Technology (AIST); Tsukuba Ibaraki 305-8565 Japan
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34
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Rivera-Chao E, Fañanás-Mastral M. Synthesis of Stereodefined Borylated Dendralenes through Copper-Catalyzed Allylboration of Alkynes. Angew Chem Int Ed Engl 2018; 57:9945-9949. [DOI: 10.1002/anie.201806334] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2018] [Indexed: 11/09/2022]
Affiliation(s)
- Eva Rivera-Chao
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CiQUS); Departamento de Química Orgánica; Universidade de Santiago de Compostela; 15782 Santiago de Compostela Spain
| | - Martín Fañanás-Mastral
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CiQUS); Departamento de Química Orgánica; Universidade de Santiago de Compostela; 15782 Santiago de Compostela Spain
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35
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Rivera-Chao E, Fañanás-Mastral M. Synthesis of Stereodefined Borylated Dendralenes through Copper-Catalyzed Allylboration of Alkynes. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201806334] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Eva Rivera-Chao
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CiQUS); Departamento de Química Orgánica; Universidade de Santiago de Compostela; 15782 Santiago de Compostela Spain
| | - Martín Fañanás-Mastral
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CiQUS); Departamento de Química Orgánica; Universidade de Santiago de Compostela; 15782 Santiago de Compostela Spain
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36
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Kojima R, Akiyama S, Ito H. A Copper(I)-Catalyzed Enantioselective γ-Boryl Substitution of Trifluoromethyl-Substituted Alkenes: Synthesis of Enantioenriched γ,γ-gem
-Difluoroallylboronates. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201803663] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Ryoto Kojima
- Division of Applied Chemistry and Frontier Chemistry Center; Faculty of Engineering; Hokkaido University; Kita 13 Nishi 8 Kita-ku Sapporo Hokkaido 060-8628 Japan
| | - Sota Akiyama
- Division of Applied Chemistry and Frontier Chemistry Center; Faculty of Engineering; Hokkaido University; Kita 13 Nishi 8 Kita-ku Sapporo Hokkaido 060-8628 Japan
| | - Hajime Ito
- Division of Applied Chemistry and Frontier Chemistry Center; Faculty of Engineering; Hokkaido University; Kita 13 Nishi 8 Kita-ku Sapporo Hokkaido 060-8628 Japan
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37
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Cheng Y, Mück-Lichtenfeld C, Studer A. Transition Metal-Free 1,2-Carboboration of Unactivated Alkenes. J Am Chem Soc 2018; 140:6221-6225. [PMID: 29741375 PMCID: PMC6014685 DOI: 10.1021/jacs.8b03333] [Citation(s) in RCA: 130] [Impact Index Per Article: 21.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2018] [Indexed: 12/22/2022]
Abstract
A method for transition metal-free 1,2-carboboration of unactivated alkenes with bis(catecholato)diboron as the boron source in combination with alkyl halides as the alkyl component is introduced. The three-component reaction proceeds via a radical pathway on a broad range of unactivated alkenes, and the 1,2-carboboration products serve as valuable synthetic building blocks. Density functional theory calculations provide insights into the mechanism.
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Affiliation(s)
- Ying Cheng
- Institute of Organic Chemistry, University of Münster, Corrensstrasse 40, 48149 Münster, Germany
| | | | - Armido Studer
- Institute of Organic Chemistry, University of Münster, Corrensstrasse 40, 48149 Münster, Germany
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38
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Kojima R, Akiyama S, Ito H. A Copper(I)-Catalyzed Enantioselective γ-Boryl Substitution of Trifluoromethyl-Substituted Alkenes: Synthesis of Enantioenriched γ,γ-gem
-Difluoroallylboronates. Angew Chem Int Ed Engl 2018; 57:7196-7199. [DOI: 10.1002/anie.201803663] [Citation(s) in RCA: 112] [Impact Index Per Article: 18.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2018] [Revised: 04/16/2018] [Indexed: 01/10/2023]
Affiliation(s)
- Ryoto Kojima
- Division of Applied Chemistry and Frontier Chemistry Center; Faculty of Engineering; Hokkaido University; Kita 13 Nishi 8 Kita-ku Sapporo Hokkaido 060-8628 Japan
| | - Sota Akiyama
- Division of Applied Chemistry and Frontier Chemistry Center; Faculty of Engineering; Hokkaido University; Kita 13 Nishi 8 Kita-ku Sapporo Hokkaido 060-8628 Japan
| | - Hajime Ito
- Division of Applied Chemistry and Frontier Chemistry Center; Faculty of Engineering; Hokkaido University; Kita 13 Nishi 8 Kita-ku Sapporo Hokkaido 060-8628 Japan
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39
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Han JT, Yun J. Copper-Catalyzed Synthesis of Tetrasubstituted Enynylboronates via Chemo-, Regio-, and Stereoselective Borylalkynylation. Org Lett 2018; 20:2104-2107. [PMID: 29561164 DOI: 10.1021/acs.orglett.8b00665] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
An efficient, catalytic method for accessing tetrasubstituted enynylboronates has been established via copper-catalyzed chemo-, regio-, and stereoselective borylalkynylation of internal alkynes. In this protocol, a range of symmetrical and unsymmetrical internal alkynes with aryl, heteroaryl, and alkyl substituents afforded fully substituted enynylboron compounds in good yields and with high levels of regio- and stereoselectivity, up to a ratio of >20:1. The enynylboron products could be further utilized in transforming the C-B bond into C-C bonds by coupling reactions.
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Affiliation(s)
- Jung Tae Han
- 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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40
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Kato K, Hirano K, Miura M. Copper-Catalyzed Regio- and Enantioselective Aminoboration of Unactivated Terminal Alkenes. Chemistry 2018; 24:5775-5778. [DOI: 10.1002/chem.201801070] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2018] [Indexed: 12/26/2022]
Affiliation(s)
- Kodai Kato
- Department of Applied Chemistry; Graduate School of Engineering, Osaka University; Suita Osaka 565-0871 Japan), Fax: (+81) 6-6879-7362
| | - Koji Hirano
- Department of Applied Chemistry; Graduate School of Engineering, Osaka University; Suita Osaka 565-0871 Japan), Fax: (+81) 6-6879-7362
| | - Masahiro Miura
- Department of Applied Chemistry; Graduate School of Engineering, Osaka University; Suita Osaka 565-0871 Japan), Fax: (+81) 6-6879-7362
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41
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Li D, Kim J, Yang JW, Yun J. Copper-Catalyzed Asymmetric Synthesis of Borylated cis
-Disubstituted Indolines. Chem Asian J 2018; 13:2365-2368. [DOI: 10.1002/asia.201800121] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2018] [Revised: 02/08/2018] [Indexed: 11/08/2022]
Affiliation(s)
- DingXi Li
- Department of Chemistry; Sungkyunkwan University; Suwon 16419 Korea
| | - Jiwon Kim
- Department of Chemistry; Sungkyunkwan University; Suwon 16419 Korea
| | - Jung Woon Yang
- Department of Energy Science; Sungkyunkwan University; Suwon 16419 Korea
| | - Jaesook Yun
- Department of Chemistry; Sungkyunkwan University; Suwon 16419 Korea
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42
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Huang Y, del Pozo J, Torker S, Hoveyda AH. Enantioselective Synthesis of Trisubstituted Allenyl-B(pin) Compounds by Phosphine-Cu-Catalyzed 1,3-Enyne Hydroboration. Insights Regarding Stereochemical Integrity of Cu-Allenyl Intermediates. J Am Chem Soc 2018; 140:2643-2655. [PMID: 29417810 PMCID: PMC6019291 DOI: 10.1021/jacs.7b13296] [Citation(s) in RCA: 128] [Impact Index Per Article: 21.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Catalytic enantioselective boron-hydride additions to 1,3-enynes, which afford allenyl-B(pin) (pin = pinacolato) products, are disclosed. Transformations are promoted by a readily accessible bis-phosphine-Cu complex and involve commercially available HB(pin). The method is applicable to aryl- and alkyl-substituted 1,3-enynes. Trisubstituted allenyl-B(pin) products were generated in 52-80% yield and, in most cases, in >98:2 allenyl:propargyl and 92:8-99:1 enantiomeric ratio. Utility is highlighted through a highly diastereoselective addition to an aldehyde, and a stereospecific catalytic cross-coupling process that delivers an enantiomerically enriched allene with three carbon-based substituents. The following key mechanistic attributes are elucidated: (1) Spectroscopic and computational investigations indicate that low enantioselectivity can arise from loss of kinetic stereoselectivity, which, as suggested by experimental evidence, may occur by formation of a propargylic anion generated by heterolytic Cu-C cleavage. This is particularly a problem when trapping of the Cu-allenyl intermediate is slow, namely, when an electron deficient 1,3-enyne or a less reactive boron-hydride reagent (e.g., HB(dan) (dan = naphthalene-1,8-diaminato)) is used or under non-optimal conditions (e.g., lower boron-hydride concentration causing slower trapping). (2) With enynes that contain a sterically demanding o-aryl substituent considerable amounts of the propargyl-B(pin) isomer may be generated (25-96%) because a less sterically demanding transition state for Cu/B exchange becomes favorable. (3) The phosphine ligand can promote isomerization of the enantiomerically enriched allenyl-B(pin) product; accordingly, lower ligand loading might at times be optimal. (4) Catalytic cross-coupling with an enantiomerically enriched allenyl-B(pin) compound might proceed with high stereospecificity (e.g., phosphine-Pd-catalyzed cross-coupling) or lead to considerable racemization (e.g., phosphine-Cu-catalyzed allylic substitution).
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Affiliation(s)
- Youming Huang
- Department of Chemistry, Merkert Chemistry Center, Boston College Chestnut Hill, Massachusetts 02467
| | - Juan del Pozo
- Department of Chemistry, Merkert Chemistry Center, Boston College Chestnut Hill, Massachusetts 02467
| | - Sebastian Torker
- Department of Chemistry, Merkert Chemistry Center, Boston College Chestnut Hill, Massachusetts 02467
| | - Amir H. Hoveyda
- Department of Chemistry, Merkert Chemistry Center, Boston College Chestnut Hill, Massachusetts 02467
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43
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Chen B, Cao P, Liao Y, Wang M, Liao J. Enantioselective Copper-Catalyzed Methylboration of Alkenes. Org Lett 2018; 20:1346-1349. [DOI: 10.1021/acs.orglett.7b03860] [Citation(s) in RCA: 56] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Bin Chen
- Chengdu
Institute of Biology, Chinese Academy of Sciences, Chengdu
610041, People’s Republic of China and University of Chinese Academy of Sciences, Beijing 10049, People’s Republic of China
- College
of Chemical Engineering, Sichuan University, Chengdu 610065, People’s Republic of China
- College
of Chemistry and Materials Science, Sichuan Normal University, Chengdu 610068, People’s Republic of China
| | - Peng Cao
- College
of Chemistry and Materials Science, Sichuan Normal University, Chengdu 610068, People’s Republic of China
| | - Yang Liao
- Chengdu
Institute of Biology, Chinese Academy of Sciences, Chengdu
610041, People’s Republic of China and University of Chinese Academy of Sciences, Beijing 10049, People’s Republic of China
| | - Min Wang
- Chengdu
Institute of Biology, Chinese Academy of Sciences, Chengdu
610041, People’s Republic of China and University of Chinese Academy of Sciences, Beijing 10049, People’s Republic of China
| | - Jian Liao
- Chengdu
Institute of Biology, Chinese Academy of Sciences, Chengdu
610041, People’s Republic of China and University of Chinese Academy of Sciences, Beijing 10049, People’s Republic of China
- College
of Chemical Engineering, Sichuan University, Chengdu 610065, People’s Republic of China
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