1
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Hou H, Pan Y, Sun Y, Han Y, Yan C, Shi Y, Zhu S. Visible-Light Photoredox Catalyzed Regioselective 1,4-Hydroalkylation of 1,3-Enyne. Chemistry 2023; 29:e202301633. [PMID: 37365999 DOI: 10.1002/chem.202301633] [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: 05/23/2023] [Revised: 06/19/2023] [Accepted: 06/27/2023] [Indexed: 06/28/2023]
Abstract
Described herein is a visible-light photoredox-catalyzed regioselective 1,4-hydroalkylation of 1,3-enynes. Various of di- and tri-substituent allenes were really accessible under the present reaction conditions. The visible-light photoredox activation of the carbon nucleophile to generate its radical species, allowing the addition with un-activated enynes. The synthetic utility for the present protocol was demonstrated by a large-scale reaction, as well as the derivatization of the allene product.
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Affiliation(s)
- Hong Hou
- School of Chemistry & Chemical Engineering, Yangzhou University, Yangzhou, 225002, China
| | - Yingjie Pan
- School of Chemistry & Chemical Engineering, Yangzhou University, Yangzhou, 225002, China
| | - Yuejie Sun
- School of Chemistry & Chemical Engineering, Yangzhou University, Yangzhou, 225002, China
| | - Ying Han
- School of Chemistry & Chemical Engineering, Yangzhou University, Yangzhou, 225002, China
| | - Chaoguo Yan
- School of Chemistry & Chemical Engineering, Yangzhou University, Yangzhou, 225002, China
| | - Yaocheng Shi
- School of Chemistry & Chemical Engineering, Yangzhou University, Yangzhou, 225002, China
| | - Shaoqun Zhu
- School of Chemistry & Chemical Engineering, Yangzhou University, Yangzhou, 225002, China
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2
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Wang Y, Ma P, Ma N, Wang J. Ligand-Controlled Nickel-Catalyzed Reactions of Benzocyclobutenones with Alkynyltrifluoroborates: Diverse Construction of Polysubstituted Naphthols. Org Lett 2023; 25:3527-3532. [PMID: 37144914 DOI: 10.1021/acs.orglett.3c01091] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
Ligand-controlled nickel-catalyzed selective cleavage of the C1-C2 or C1-C8 bond of benzocyclobutenones (BCBs) is reported. The delicate selection of dpppe or PMe3 as the ligand led to predictably divergent synthesis of a wide range of 1-naphthols and 2-naphthols without C2 and C3 substituents, respectively, from BCBs and potassium alkynyltrifluoroborate, and the increase in the amount of PMe3 resulted in tandem reaction of 2 equiv of BCB with the borate to afford 3,4,5-trisubstituted 2-naphthols. The fabulous ligand effect resulted in the facile and unique construction of multisubstituted naphthols with well-controlled regioselectivity and a high degree of structural diversity.
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Affiliation(s)
- Yuhang Wang
- Department of Chemistry, School of Science, Tianjin University, Tianjin 300072, China
| | - Peng Ma
- Department of Chemistry, School of Science, Tianjin University, Tianjin 300072, China
| | - Ning Ma
- Department of Chemistry, School of Science, Tianjin University, Tianjin 300072, China
| | - Jianhui Wang
- Department of Chemistry, School of Science, Collaborative Innovation Center of Chemical Science and Engineering, Tianjin University, Tianjin 300072, China
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3
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Renner J, Smith SR, Cowley JM, Louie J. Improved Total Synthesis of Indolizidine and Quinolizidine Alkaloids via Nickel-Catalyzed (4 + 2) Cycloaddition. J Org Chem 2022; 87:8871-8883. [PMID: 35759553 DOI: 10.1021/acs.joc.2c00365] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A Ni-catalyzed (4 + 2) cycloaddition of bicyclic 3-azetidinones and alkynes was developed to access indolizidine and quinolizidine alkaloids. A key element was the development of a diazomethylation procedure that allows the efficient synthesis of bicyclic azetidinones from pyroglutamic and 6-oxopiperidine-2-carboxylic acid. A ligand screening led to improved regioselectivity and enantiopurity during the Ni-catalyzed (4 + 2) cycloaddition. This straightforward methodology was leveraged to synthesize (+)-ipalbidine, (+)-septicine, (+)-seco-antofine, and (+)-7-methoxy-julandine.
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Affiliation(s)
- Jonas Renner
- Department of Chemistry, University of Utah, 315 South 1400 East, Salt Lake City, Utah 84112-8450, United States
| | - Sleight R Smith
- Department of Chemistry, University of Utah, 315 South 1400 East, Salt Lake City, Utah 84112-8450, United States
| | - Jacob M Cowley
- Department of Chemistry, University of Utah, 315 South 1400 East, Salt Lake City, Utah 84112-8450, United States
| | - Janis Louie
- Department of Chemistry, University of Utah, 315 South 1400 East, Salt Lake City, Utah 84112-8450, United States
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4
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Ghosh S, Chakrabortty R, Ganesh V. Dual Functionalization of Alkynes Utilizing the Redox Characteristics of Transition Metal Catalysts. ChemCatChem 2021. [DOI: 10.1002/cctc.202100838] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Affiliation(s)
- Sudipta Ghosh
- Department of Chemistry Indian Institute of Technology Kharagpur 721302 West Bengal India
| | - Rajesh Chakrabortty
- Department of Chemistry Indian Institute of Technology Kharagpur 721302 West Bengal India
| | - Venkataraman Ganesh
- Department of Chemistry Indian Institute of Technology Kharagpur 721302 West Bengal India
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5
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Guo J, Liu Y, Lin X, Tang T, Wang B, Hu P, Zhao K, Song F, Shi Z. Site‐Selective C–C Cleavage of Benzocyclobutenones Enabled by a Blocking Strategy Using Nickel Catalysis. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202106709] [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)
- Jing‐Hong Guo
- College of Chemistry and Materials Science Sichuan Normal University Chengdu Sichan 610066 China
| | - Yu Liu
- College of Chemistry and Materials Science Sichuan Normal University Chengdu Sichan 610066 China
| | - Xin‐Cheng Lin
- Department of Chemistry Fudan University Shanghai 200433 China
| | - Tian‐Mu Tang
- College of Chemistry and Materials Science Sichuan Normal University Chengdu Sichan 610066 China
| | - Bi‐Qin Wang
- College of Chemistry and Materials Science Sichuan Normal University Chengdu Sichan 610066 China
| | - Ping Hu
- College of Chemistry and Materials Science Sichuan Normal University Chengdu Sichan 610066 China
| | - Ke‐Qing Zhao
- College of Chemistry and Materials Science Sichuan Normal University Chengdu Sichan 610066 China
| | - Feijie Song
- College of Chemistry and Materials Science Sichuan Normal University Chengdu Sichan 610066 China
| | - Zhang‐Jie Shi
- Department of Chemistry Fudan University Shanghai 200433 China
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6
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Guo JH, Liu Y, Lin XC, Tang TM, Wang BQ, Hu P, Zhao KQ, Song F, Shi ZJ. Site-Selective C-C Cleavage of Benzocyclobutenones Enabled by a Blocking Strategy Using Nickel Catalysis. Angew Chem Int Ed Engl 2021; 60:19079-19084. [PMID: 34187100 DOI: 10.1002/anie.202106709] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2021] [Revised: 06/22/2021] [Indexed: 12/29/2022]
Abstract
Controlling the chemo- and regioselectivity of transition-metal-catalyzed C-C activation remains a great challenge. The transformations of benzocyclobutenones (BCBs) usually involve the cleavage of C1-C2 bond. In this work, an unprecedented highly selective cleavage of C1-C8 bond with the insertion of alkynes is achieved by using blocking strategy via Ni catalysis, providing an efficient method for synthesis of 1,8-disubstituted naphthalenes. Notably, the blocking group could be readily removed after the transformation.
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Affiliation(s)
- Jing-Hong Guo
- College of Chemistry and Materials Science, Sichuan Normal University, Chengdu, Sichan, 610066, China
| | - Yu Liu
- College of Chemistry and Materials Science, Sichuan Normal University, Chengdu, Sichan, 610066, China
| | - Xin-Cheng Lin
- Department of Chemistry, Fudan University, Shanghai, 200433, China
| | - Tian-Mu Tang
- College of Chemistry and Materials Science, Sichuan Normal University, Chengdu, Sichan, 610066, China
| | - Bi-Qin Wang
- College of Chemistry and Materials Science, Sichuan Normal University, Chengdu, Sichan, 610066, China
| | - Ping Hu
- College of Chemistry and Materials Science, Sichuan Normal University, Chengdu, Sichan, 610066, China
| | - Ke-Qing Zhao
- College of Chemistry and Materials Science, Sichuan Normal University, Chengdu, Sichan, 610066, China
| | - Feijie Song
- College of Chemistry and Materials Science, Sichuan Normal University, Chengdu, Sichan, 610066, China
| | - Zhang-Jie Shi
- Department of Chemistry, Fudan University, Shanghai, 200433, China
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7
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Jang Y, Lindsay VNG. Synthesis of Cyclopentenones with Reverse Pauson–Khand Regiocontrol via Ni-Catalyzed C–C Activation of Cyclopropanone. Org Lett 2020; 22:8872-8876. [DOI: 10.1021/acs.orglett.0c03246] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Yujin Jang
- Department of Chemistry, North Carolina State University, 2620 Yarbrough Drive, Raleigh, North Carolina 27695, United States
| | - Vincent N. G. Lindsay
- Department of Chemistry, North Carolina State University, 2620 Yarbrough Drive, Raleigh, North Carolina 27695, United States
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8
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Abstract
This article reviews synthetic transformations involving cleavage of a carbon-carbon bond of a four-membered ring, with a particular focus on the examples reported during the period from 2011 to the end of 2019. Most significant is the progress of catalytic reactions involving oxidative addition of carbon-carbon bonds onto transition metals or β-carbon elimination of transition metal alkoxides. When they are looked at from synthetic perspectives, they offer unique and efficient methods to build complex natural products and structures that are difficult to construct by conventional methods. On the other hand, β-scission of radical intermediates has also attracted increasing attention as an alternative elementary step to cleave carbon-carbon bonds. Its site-selectivity is often complementary to that of transition metal-catalyzed reactions. In addition, Lewis acid-mediated and thermally induced ring-opening of cyclobutanone derivatives has garnered renewed attention. On the whole, these examples demonstrate unique synthetic potentials of structurally strained four-membered ring compounds for the construction of organic skeletons.
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Affiliation(s)
- Masahiro Murakami
- Department of Synthetic Chemistry and Biological Chemistry, Kyoto University, Katsura, Kyoto 615-8510, Japan
| | - Naoki Ishida
- Department of Synthetic Chemistry and Biological Chemistry, Kyoto University, Katsura, Kyoto 615-8510, Japan
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10
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A Study of Polarization and Directing Effects of Unsymmetrical Alkynes Using Regioselective Pd-Catalyzed Bromoallylation. European J Org Chem 2020. [DOI: 10.1002/ejoc.201901476] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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11
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Yang X, Kong WY, Gao JN, Cheng L, Li NN, Li M, Li HT, Fan J, Gao JM, Ouyang Q, Xie JB. Rhodium catalyzed C-C bond cleavage/coupling of 2-(azetidin-3-ylidene)acetates and analogs. Chem Commun (Camb) 2019; 55:12707-12710. [PMID: 31588468 DOI: 10.1039/c9cc06446j] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
The C-C bond cleavage/coupling of 2-(azetidin-3-ylidene)acetates with aryl boronic acids catalyzed by a rhodium complex was studied with a "conjugate addition/β-C cleavage/protonation" strategy.
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Affiliation(s)
- Xuan Yang
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, Yangling 712100, China.
| | - Wei-Yu Kong
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, Yangling 712100, China.
| | - Jia-Ni Gao
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, Yangling 712100, China.
| | - Li Cheng
- State Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, China
| | - Nan-Nan Li
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, Yangling 712100, China.
| | - Meng Li
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, Yangling 712100, China.
| | - Hui-Ting Li
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, Yangling 712100, China.
| | - Jun Fan
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, Yangling 712100, China.
| | - Jin-Ming Gao
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, Yangling 712100, China.
| | - Qin Ouyang
- College of Pharmacy, Third Military Medical University, Chongqing 400038, China.
| | - Jian-Bo Xie
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, Yangling 712100, China. and State Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, China
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12
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Elwrfalli F, Esvan YJ, Robertson CM, Aïssa C. Regioselective cycloaddition of potassium alkynyltrifluoroborates with 3-azetidinones and 3-oxetanone by nickel-catalysed C–C bond activation. Chem Commun (Camb) 2019; 55:497-500. [DOI: 10.1039/c8cc09241a] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
The nickel-catalysed (4+2) cycloaddtion of potassium alkynyltrifluoroborates and 3-azetidinones and 3-oxetanone gives only one regioisomer for all alkyne substituents.
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13
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Ambler BR, Turnbull BWH, Suravarapu SR, Uteuliyev MM, Huynh NO, Krische MJ. Enantioselective Ruthenium-Catalyzed Benzocyclobutenone-Ketol Cycloaddition: Merging C-C Bond Activation and Transfer Hydrogenative Coupling for Type II Polyketide Construction. J Am Chem Soc 2018; 140:9091-9094. [PMID: 29992811 PMCID: PMC6226000 DOI: 10.1021/jacs.8b05724] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
The first enantioselective intermolecular metal-catalyzed cycloadditions of benzocyclobutenones via C-C bond oxidative addition are described. In the presence of a ruthenium(0) complex modified by ( R)-DM-SEGPHOS, tetralone-derived ketols and benzocyclobutenones combine to form cycloadducts with complete regio- and diastereoselectivity and high enantioselectivity. Using this method, the "bay region" substructure of the angucycline natural product arenimycin was prepared.
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Affiliation(s)
- Brett R Ambler
- University of Texas at Austin , Department of Chemistry , Austin , Texas 78712 United States
| | - Ben W H Turnbull
- University of Texas at Austin , Department of Chemistry , Austin , Texas 78712 United States
| | - Sankar Rao Suravarapu
- University of Texas at Austin , Department of Chemistry , Austin , Texas 78712 United States
| | - Maulen M Uteuliyev
- University of Texas at Austin , Department of Chemistry , Austin , Texas 78712 United States
| | - Nancy O Huynh
- University of Texas at Austin , Department of Chemistry , Austin , Texas 78712 United States
| | - Michael J Krische
- University of Texas at Austin , Department of Chemistry , Austin , Texas 78712 United States
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14
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Sato H, Turnbull BWH, Fukaya K, Krische MJ. Ruthenium(0)-Catalyzed Cycloaddition of 1,2-Diols, Ketols, or Diones via Alcohol-Mediated Hydrogen Transfer. Angew Chem Int Ed Engl 2018; 57:3012-3021. [PMID: 29068505 PMCID: PMC5842109 DOI: 10.1002/anie.201709916] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2017] [Indexed: 02/01/2023]
Abstract
Merging the characteristics of transfer hydrogenation and carbonyl addition, a broad new class of ruthenium(0)-catalyzed cycloadditions has been developed. As discussed in this Minireview, fused or bridged bicyclic ring systems are accessible in a redox-independent manner in C-C bond-forming hydrogen transfer reactions of diols, α-ketols, or 1,2-diones with diverse unsaturated reactants.
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Affiliation(s)
- Hiroki Sato
- University of Texas at Austin, Department of Chemistry, Welch Hall (A5300), 105 E 24th St., Austin, TX, 78712, USA
| | - Ben W H Turnbull
- University of Texas at Austin, Department of Chemistry, Welch Hall (A5300), 105 E 24th St., Austin, TX, 78712, USA
| | - Keisuke Fukaya
- University of Texas at Austin, Department of Chemistry, Welch Hall (A5300), 105 E 24th St., Austin, TX, 78712, USA
| | - Michael J Krische
- University of Texas at Austin, Department of Chemistry, Welch Hall (A5300), 105 E 24th St., Austin, TX, 78712, USA
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15
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Deng L, Jin L, Dong G. Fused-Ring Formation by an Intramolecular "Cut-and-Sew" Reaction between Cyclobutanones and Alkynes. Angew Chem Int Ed Engl 2018; 57:2702-2706. [PMID: 29338109 PMCID: PMC5849476 DOI: 10.1002/anie.201712487] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2017] [Revised: 01/03/2017] [Indexed: 11/10/2022]
Abstract
The development of a catalytic intramolecular "cut-and-sew" transformation between cyclobutanones and alkynes to construct cyclohexenone-fused rings is described herein. The challenge arises from the need for selective coupling at the more sterically hindered proximal position, and can be addressed by using an electron-rich, but less bulky, phosphine ligand. The control experiment and 13 C-labelling study suggest that the reaction may start with cleavage of the less hindered distal C-C bond of cyclobutanones, followed by decarbonylation and CO reinsertion to enable Rh insertion at the more hindered proximal position.
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Affiliation(s)
- Lin Deng
- Department of Chemistry, University of Chicago, Chicago, IL, 60637, USA
| | - Likun Jin
- Department of Chemistry, University of Chicago, Chicago, IL, 60637, USA
- College of Chemical Engineering, Nanjing University of Science & Technology, Nanjing, 210094, P. R. China
| | - Guangbin Dong
- Department of Chemistry, University of Chicago, Chicago, IL, 60637, USA
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16
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Deng L, Jin L, Dong G. Fused-Ring Formation by an Intramolecular “Cut-and-Sew” Reaction between Cyclobutanones and Alkynes. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201712487] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Lin Deng
- Department of Chemistry; University of Chicago; Chicago IL 60637 USA
| | - Likun Jin
- Department of Chemistry; University of Chicago; Chicago IL 60637 USA
- College of Chemical Engineering; Nanjing University of Science & Technology; Nanjing 210094 P. R. China
| | - Guangbin Dong
- Department of Chemistry; University of Chicago; Chicago IL 60637 USA
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17
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Sato H, Turnbull BWH, Fukaya K, Krische MJ. Ruthenium(0)‐katalysierte Cycloaddition von 1,2‐Diolen, Ketolen oder Dionen durch Alkohol‐vermittelte Wasserstoffübertragung. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201709916] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Hiroki Sato
- University of Texas at Austin Department of Chemistry Welch Hall (A5300), 105 E 24th St. Austin TX 78712 USA
| | - Ben W. H. Turnbull
- University of Texas at Austin Department of Chemistry Welch Hall (A5300), 105 E 24th St. Austin TX 78712 USA
| | - Keisuke Fukaya
- University of Texas at Austin Department of Chemistry Welch Hall (A5300), 105 E 24th St. Austin TX 78712 USA
| | - Michael J. Krische
- University of Texas at Austin Department of Chemistry Welch Hall (A5300), 105 E 24th St. Austin TX 78712 USA
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18
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Bender M, Turnbull BWH, Ambler BR, Krische MJ. Ruthenium-catalyzed insertion of adjacent diol carbon atoms into C-C bonds: Entry to type II polyketides. Science 2017; 357:779-781. [PMID: 28839069 DOI: 10.1126/science.aao0453] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2017] [Accepted: 07/24/2017] [Indexed: 12/26/2022]
Abstract
Current catalytic processes involving carbon-carbon bond activation rely on π-unsaturated coupling partners. Exploiting the concept of transfer hydrogenative coupling, we report a ruthenium(0)-catalyzed cycloaddition of benzocyclobutenones that functionalizes two adjacent saturated diol carbon-hydrogen bonds. These regio- and diastereoselective processes enable convergent construction of type II polyketide substructures.
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Affiliation(s)
- Matthias Bender
- Department of Chemistry, University of Texas, Austin, TX 78712, USA
| | - Ben W H Turnbull
- Department of Chemistry, University of Texas, Austin, TX 78712, USA
| | - Brett R Ambler
- Department of Chemistry, University of Texas, Austin, TX 78712, USA
| | - Michael J Krische
- Department of Chemistry, University of Texas, Austin, TX 78712, USA.
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19
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Buxton CS, Blakemore DC, Bower JF. Reductive Coupling of Acrylates with Ketones and Ketimines by a Nickel-Catalyzed Transfer-Hydrogenative Strategy. Angew Chem Int Ed Engl 2017; 56:13824-13828. [PMID: 28868751 PMCID: PMC5656909 DOI: 10.1002/anie.201707531] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2017] [Indexed: 12/17/2022]
Abstract
Nickel-catalyzed coupling of benzyl acrylates with activated ketones and imines provides γ-butyrolactones and lactams, respectively. The benzyl alcohol byproduct released during the lactonization/lactamization event is relayed to the next cycle where it serves as the reductant for C-C bond formation. This strategy represents a conceptually unique approach to transfer-hydrogenative C-C bond formation, thus providing examples of reductive heterocyclizations where hydrogen embedded within an alcohol leaving group facilitates turnover.
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Affiliation(s)
| | | | - John F. Bower
- School of ChemistryUniversity of BristolBristolBS8 1TSUK
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20
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Buxton CS, Blakemore DC, Bower JF. Reductive Coupling of Acrylates with Ketones and Ketimines by a Nickel-Catalyzed Transfer-Hydrogenative Strategy. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201707531] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Craig S. Buxton
- School of Chemistry; University of Bristol; Bristol BS8 1TS UK
| | | | - John F. Bower
- School of Chemistry; University of Bristol; Bristol BS8 1TS UK
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21
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Godara S, Verma P, Paranjothy M. Dissociation Chemistry of 3-Oxetanone in the Gas Phase. J Phys Chem A 2017; 121:6679-6686. [DOI: 10.1021/acs.jpca.7b06880] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Sumitra Godara
- Department of Chemistry, Indian Institute of Technology Jodhpur, Jodhpur 342011, Rajasthan, India
| | - Pooja Verma
- Department of Chemistry, Indian Institute of Technology Jodhpur, Jodhpur 342011, Rajasthan, India
| | - Manikandan Paranjothy
- Department of Chemistry, Indian Institute of Technology Jodhpur, Jodhpur 342011, Rajasthan, India
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22
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Guo R, Zheng X, Zhang D, Zhang G. Rhodium(i)-catalyzed stereoselective [4+2] cycloaddition of oxetanols with alkynes through C(sp 3)-C(sp 3) bond cleavage. Chem Sci 2017; 8:3002-3006. [PMID: 28451367 PMCID: PMC5380880 DOI: 10.1039/c6sc05246k] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2016] [Accepted: 01/22/2017] [Indexed: 12/31/2022] Open
Abstract
An efficient and convenient synthesis of highly functionalized dihydropyrans has been achieved through rhodium(i)-catalysed tandem C(sp3)–C(sp3) bond cleavage and annulation of oxetanols with alkynes.
An efficient and convenient synthesis of highly functionalized dihydropyrans has been achieved through rhodium(i)-catalysed tandem C(sp3)–C(sp3) bond cleavage and annulation of oxetanols with alkynes. An enantioselective version was enabled using a Binaphine ligand. Excellent site-selectivity and remarkable enantioretention are obtained for 2-substituted oxetanols.
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Affiliation(s)
- Rui Guo
- State Key Laboratory of Organometallic Chemistry , Shanghai Institute of Organic Chemistry , Chinese Academy of Sciences , 345 Lingling Road , Shanghai 200032 , P. R. China . .,University of Chinese Academy of Sciences , Beijing , 100049 , China
| | - Xinxin Zheng
- Institute of Pharmaceutical Science , China Pharmaceutical University , Nanjing , P. R. China .
| | - Dayong Zhang
- Institute of Pharmaceutical Science , China Pharmaceutical University , Nanjing , P. R. China .
| | - Guozhu Zhang
- State Key Laboratory of Organometallic Chemistry , Shanghai Institute of Organic Chemistry , Chinese Academy of Sciences , 345 Lingling Road , Shanghai 200032 , P. R. China . .,University of Chinese Academy of Sciences , Beijing , 100049 , China
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23
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Yamamoto Y. Theoretical Study on Ruthenium-Catalyzed Hydrocarbamoylative Cyclization of 1,6-Diyne with Dimethylformamide. Organometallics 2017. [DOI: 10.1021/acs.organomet.7b00026] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yoshihiko Yamamoto
- Department of Basic Medicinal
Sciences, Graduate School of Pharmaceutical Sciences, Nagoya University, Chikusa, Nagoya 464-8601, Japan
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24
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Fumagalli G, Stanton S, Bower JF. Recent Methodologies That Exploit C-C Single-Bond Cleavage of Strained Ring Systems by Transition Metal Complexes. Chem Rev 2017; 117:9404-9432. [PMID: 28075115 DOI: 10.1021/acs.chemrev.6b00599] [Citation(s) in RCA: 638] [Impact Index Per Article: 91.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
In this review, synthetic and mechanistic aspects of key methodologies that exploit C-C single-bond cleavage of strained ring systems are highlighted. The focus is on transition-metal-catalyzed processes that are triggered by C-C bond activation and β-carbon elimination, with the review concentrating on developments from mid-2009 to mid-2016.
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Affiliation(s)
- Gabriele Fumagalli
- School of Chemistry, University of Bristol , Bristol BS8 1TS, United Kingdom
| | - Steven Stanton
- School of Chemistry, University of Bristol , Bristol BS8 1TS, United Kingdom
| | - John F Bower
- School of Chemistry, University of Bristol , Bristol BS8 1TS, United Kingdom
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25
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Murakami M, Ishida N. Potential of Metal-Catalyzed C–C Single Bond Cleavage for Organic Synthesis. J Am Chem Soc 2016; 138:13759-13769. [DOI: 10.1021/jacs.6b01656] [Citation(s) in RCA: 238] [Impact Index Per Article: 29.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Masahiro Murakami
- Department of Synthetic
Chemistry
and Biological Chemistry, Kyoto University, Katsura, Kyoto 615-8510, Japan
| | - Naoki Ishida
- Department of Synthetic
Chemistry
and Biological Chemistry, Kyoto University, Katsura, Kyoto 615-8510, Japan
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26
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Pancholi AK, Geden JV, Clarkson GJ, Shipman M. Asymmetric Synthesis of 2-Substituted Azetidin-3-ones via Metalated SAMP/RAMP Hydrazones. J Org Chem 2016; 81:7984-92. [PMID: 27447363 DOI: 10.1021/acs.joc.6b01284] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
2-Substituted azetidin-3-ones can be prepared in good yields and enantioselectivities (up to 85% ee) by a one-pot procedure involving the metalation of the SAMP/RAMP hydrazones of N-Boc-azetidin-3-one, reaction with a wide range of electrophiles, including alkyl, allyl, and benzyl halides and carbonyl compounds, followed by hydrolysis using oxalic acid.
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Affiliation(s)
- Alpa K Pancholi
- Department of Chemistry, University of Warwick , Gibbet Hill Road, Coventry CV4 7AL, United Kingdom
| | - Joanna V Geden
- Department of Chemistry, University of Warwick , Gibbet Hill Road, Coventry CV4 7AL, United Kingdom
| | - Guy J Clarkson
- Department of Chemistry, University of Warwick , Gibbet Hill Road, Coventry CV4 7AL, United Kingdom
| | - Michael Shipman
- Department of Chemistry, University of Warwick , Gibbet Hill Road, Coventry CV4 7AL, United Kingdom
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27
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Barday M, Ho KYT, Halsall CT, Aïssa C. Regioselective Synthesis of 3-Hydroxy-4,5-alkyl-Substituted Pyridines Using 1,3-Enynes as Alkynes Surrogates. Org Lett 2016; 18:1756-9. [DOI: 10.1021/acs.orglett.6b00451] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Manuel Barday
- Department
of Chemistry, University of Liverpool, Crown Street, Liverpool L69 7ZD, United Kingdom
| | - Kelvin Y. T. Ho
- Department
of Chemistry, University of Liverpool, Crown Street, Liverpool L69 7ZD, United Kingdom
| | - Christopher T. Halsall
- Oncology
Innovative Medicines Unit, AstraZeneca, Mereside, Alderley Park, Macclesfield, Cheshire SK10 4TG, United Kingdom
| | - Christophe Aïssa
- Department
of Chemistry, University of Liverpool, Crown Street, Liverpool L69 7ZD, United Kingdom
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28
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Matsuda T, Matsumoto T. Rhodium(i)-catalysed intermolecular alkyne insertion into (2-pyridylmethylene)cyclobutenes. Org Biomol Chem 2016; 14:5023-7. [DOI: 10.1039/c6ob00734a] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Multiply substituted benzenes were prepared by rhodium(i)-catalysed reaction of (2-pyridylmethylene)cyclobutenes with alkynes through an intermolecular alkyne insertion into the carbon–carbon bond of cyclobutenes.
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Affiliation(s)
- Takanori Matsuda
- Department of Applied Chemistry
- Tokyo University of Science
- Tokyo 162-8601
- Japan
| | - Takeshi Matsumoto
- Department of Applied Chemistry
- Tokyo University of Science
- Tokyo 162-8601
- Japan
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29
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Thakur A, Evangelista JL, Kumar P, Louie J. An in Situ Approach to Nickel-Catalyzed Cycloaddition of Alkynes and 3-Azetidinones. J Org Chem 2015; 80:9951-8. [DOI: 10.1021/acs.joc.5b01458] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Ashish Thakur
- Department of Chemistry, University of Utah, 315 South, 1400
East, Salt Lake City, Utah 84112-0850, United States
| | - Judah L. Evangelista
- Department of Chemistry, University of Utah, 315 South, 1400
East, Salt Lake City, Utah 84112-0850, United States
| | - Puneet Kumar
- Department of Chemistry, University of Utah, 315 South, 1400
East, Salt Lake City, Utah 84112-0850, United States
| | - Janis Louie
- Department of Chemistry, University of Utah, 315 South, 1400
East, Salt Lake City, Utah 84112-0850, United States
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30
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Thakur A, Louie J. Advances in nickel-catalyzed cycloaddition reactions to construct carbocycles and heterocycles. Acc Chem Res 2015. [PMID: 26200651 DOI: 10.1021/acs.accounts.5b00054] [Citation(s) in RCA: 85] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Transition-metal catalysis has revolutionized the field of organic synthesis by facilitating the construction of complex organic molecules in a highly efficient manner. Although these catalysts are typically based on precious metals, researchers have made great strides in discovering new base metal catalysts over the past decade. This Account describes our efforts in this area and details the development of versatile Ni complexes that catalyze a variety of cycloaddition reactions to afford interesting carbocycles and heterocycles. First, we describe our early work in investigating the efficacy of N-heterocyclic carbene (NHC) ligands in Ni-catalyzed cycloaddition reactions with carbon dioxide and isocyanate. The use of sterically hindered, electron donating NHC ligands in these reactions significantly improved the substrate scope as well as reaction conditions in the syntheses of a variety of pyrones and pyridones. The high reactivity and versatility of these unique Ni(NHC) catalytic systems allowed us to develop unprecedented Ni-catalyzed cycloadditions that were unexplored due to the inefficacy of early Ni catalysts to promote hetero-oxidative coupling steps. We describe the development and mechanistic analysis of Ni/NHC catalysts that couple diynes and nitriles to form pyridines. Kinetic studies and stoichiometric reactions confirmed a hetero-oxidative coupling pathway associated with this Ni-catalyzed cycloaddition. We then describe a series of new substrates for Ni-catalyzed cycloaddition reactions such as vinylcyclopropanes, aldehydes, ketones, tropones, 3-azetidinones, and 3-oxetanones. In reactions with vinycyclopropanes and tropones, DFT calculations reveal noteworthy mechanistic steps such as a C-C σ-bond activation and an 8π-insertion of vinylcyclopropane and tropone, respectively. Similarly, the cycloaddition of 3-azetidinones and 3-oxetanones also requires Ni-catalyzed C-C σ-bond activation to form N- and O-containing heterocycles.
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Affiliation(s)
- Ashish Thakur
- Department
of Chemistry, University of Utah, 315 South, 1400 East, Salt Lake City, Utah 84112-0850, United States
| | - Janis Louie
- Department
of Chemistry, University of Utah, 315 South, 1400 East, Salt Lake City, Utah 84112-0850, United States
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31
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Yada A, Okajima S, Murakami M. Palladium-Catalyzed Intramolecular Insertion of Alkenes into the Carbon-Nitrogen Bond of β-Lactams. J Am Chem Soc 2015; 137:8708-11. [PMID: 26119993 DOI: 10.1021/jacs.5b05308] [Citation(s) in RCA: 49] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The carbon-nitrogen bond of β-lactams is cleaved by palladium(0), and an alkene is intramolecularly inserted therein. The following reductive elimination produces nitrogen-containing benzo-fused tricycles in good to high yields.
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Affiliation(s)
- Akira Yada
- Department of Synthetic Chemistry and Biological Chemistry, Kyoto University, Katsura, Kyoto 615-8510, Japan
| | - Satoshi Okajima
- Department of Synthetic Chemistry and Biological Chemistry, Kyoto University, Katsura, Kyoto 615-8510, Japan
| | - Masahiro Murakami
- Department of Synthetic Chemistry and Biological Chemistry, Kyoto University, Katsura, Kyoto 615-8510, Japan
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32
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Juliá-Hernández F, Ziadi A, Nishimura A, Martin R. Nickel-Catalyzed Chemo-, Regio- and Diastereoselective Bond Formation through Proximal CC Cleavage of Benzocyclobutenones. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201503461] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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33
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Juliá-Hernández F, Ziadi A, Nishimura A, Martin R. Nickel-Catalyzed Chemo-, Regio- and Diastereoselective Bond Formation through Proximal C-C Cleavage of Benzocyclobutenones. Angew Chem Int Ed Engl 2015; 54:9537-41. [PMID: 26096718 DOI: 10.1002/anie.201503461] [Citation(s) in RCA: 74] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2015] [Revised: 05/13/2015] [Indexed: 12/31/2022]
Abstract
The first catalytic intermolecular proximal C1-C2 cleavage of benzocyclobutenones (BCB) without prior carbonyl activation or employing noble metals has been developed. This protocol operates at room temperature and is characterized by an exquisite chemo-, regio- and diastereoselectivity profile, constituting a unique platform for preparing an array of elusive carbocyclic skeletons.
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Affiliation(s)
| | - Asraa Ziadi
- Institute of Chemical Research of Catalonia (ICIQ), Av. Països Catalans 16, 43007 Tarragona (Spain)
| | - Akira Nishimura
- Institute of Chemical Research of Catalonia (ICIQ), Av. Països Catalans 16, 43007 Tarragona (Spain)
| | - Ruben Martin
- Institute of Chemical Research of Catalonia (ICIQ), Av. Països Catalans 16, 43007 Tarragona (Spain). .,Catalan Institution for Research and Advanced Studies (ICREA), Passeig Lluïs Companys, 23, 08010 Barcelona (Spain).
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34
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Ishida N, Nečas D, Masuda Y, Murakami M. Enantioselective Construction of 3-Hydroxypiperidine Scaffolds by Sequential Action of Light and Rhodium upon N-Allylglyoxylamides. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201502584] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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35
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Ishida N, Nečas D, Masuda Y, Murakami M. Enantioselective Construction of 3-Hydroxypiperidine Scaffolds by Sequential Action of Light and Rhodium upon N-Allylglyoxylamides. Angew Chem Int Ed Engl 2015; 54:7418-21. [DOI: 10.1002/anie.201502584] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2015] [Indexed: 11/06/2022]
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36
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Stalling T, Harker WRR, Auvinet AL, Cornel EJ, Harrity JPA. Investigation of Alkyne Regioselectivity in the Ni-Catalyzed Benzannulation of Cyclobutenones. Chemistry 2014; 21:2701-4. [DOI: 10.1002/chem.201405863] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2014] [Indexed: 11/09/2022]
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37
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Lane TK, Nguyen MH, D'Souza BR, Spahn NA, Louie J. The iron-catalyzed construction of 2-aminopyrimidines from alkynenitriles and cyanamides. Chem Commun (Camb) 2014; 49:7735-7. [PMID: 23877441 DOI: 10.1039/c3cc44422h] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Several cycloaddition catalysts and reagents were surveyed for their effectiveness toward cyclizing alkynenitriles with cyanamides. Catalytic amounts of FeI2, (iPr)PDAI and Zn were found to effectively catalyze the [2+2+2] cycloaddition of a variety of cyanamides and alkynenitriles to afford bicyclic 2-aminopyrimidines.
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Affiliation(s)
- Timothy K Lane
- The University of Utah, 315 S. 1400 E. RM. 2020, Salt Lake City, UT 84102, USA
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38
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Chen PH, Xu T, Dong G. Divergent Syntheses of Fused β-Naphthol and Indene Scaffolds by Rhodium-Catalyzed Direct and Decarbonylative Alkyne-Benzocyclobutenone Couplings. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201310100] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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39
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Chen PH, Xu T, Dong G. Divergent Syntheses of Fused β-Naphthol and Indene Scaffolds by Rhodium-Catalyzed Direct and Decarbonylative Alkyne-Benzocyclobutenone Couplings. Angew Chem Int Ed Engl 2014; 53:1674-8. [DOI: 10.1002/anie.201310100] [Citation(s) in RCA: 138] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2013] [Indexed: 11/11/2022]
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40
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Transition Metal-Catalyzed C–C Bond Activation of Four-Membered Cyclic Ketones. Top Curr Chem (Cham) 2014; 346:233-57. [DOI: 10.1007/128_2014_545] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/07/2022]
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41
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Thakur A, Facer ME, Louie J. Nickel-catalyzed cycloaddition of 1,3-dienes with 3-azetidinones and 3-oxetanones. Angew Chem Int Ed Engl 2013; 52:12161-5. [PMID: 24573793 PMCID: PMC4113093 DOI: 10.1002/anie.201306869] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2013] [Indexed: 01/16/2023]
Affiliation(s)
- Ashish Thakur
- Department of Chemistry, University of Utah 315 South, 1400 East, Salt Lake City, Utah 84112-0850 (USA)
| | - Megan E. Facer
- Department of Chemistry, University of Utah 315 South, 1400 East, Salt Lake City, Utah 84112-0850 (USA)
| | - Janis Louie
- Department of Chemistry, University of Utah 315 South, 1400 East, Salt Lake City, Utah 84112-0850 (USA)
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42
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Thakur A, Facer ME, Louie J. Nickel-Catalyzed Cycloaddition of 1,3-Dienes with 3-Azetidinones and 3-Oxetanones. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201306869] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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43
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Matsuda T, Sakurai Y. Palladium-Catalyzed Ring-Opening Alkynylation of Cyclopropenones. European J Org Chem 2013. [DOI: 10.1002/ejoc.201300220] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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44
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Li Y, Lin Z. Theoretical Studies on Nickel-Catalyzed Cycloaddition of 3-Azetidinone with Alkynes. Organometallics 2013. [DOI: 10.1021/om400211n] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Affiliation(s)
- Yang Li
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, People’s Republic of
China
| | - Zhenyang Lin
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, People’s Republic of
China
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45
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Martin TJ, Rovis T. A catalytic asymmetric synthesis of polysubstituted piperidines using a rhodium(I)-catalyzed [2+2+2] cycloaddition employing a cleavable tether. Angew Chem Int Ed Engl 2013; 52:5368-71. [PMID: 23606664 DOI: 10.1002/anie.201301741] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2013] [Indexed: 11/11/2022]
Affiliation(s)
- Timothy J Martin
- Department of Chemistry, Colorado State University, Fort Collins, CO 80523, USA
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46
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Martin TJ, Rovis T. A Catalytic Asymmetric Synthesis of Polysubstituted Piperidines Using a Rhodium(I)-Catalyzed [2+2+2] Cycloaddition Employing a Cleavable Tether. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201301741] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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47
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Kumar P, Zhang K, Louie J. An expeditious route to eight-membered heterocycles by nickel-catalyzed cycloaddition: low-temperature C(sp)2-C(sp)3 bond cleavage. Angew Chem Int Ed Engl 2012; 51:8602-6. [PMID: 22806996 PMCID: PMC3557805 DOI: 10.1002/anie.201203521] [Citation(s) in RCA: 59] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2012] [Indexed: 12/31/2022]
Abstract
A cool break: 3-Azetidinone and a variety of diynes undergo a cycloaddition reaction catalyzed by Ni/IPr to give dihydroazocine compounds (see scheme; IPr=1,3-bis(2,6-diisopropylphenyl)imidazolidene). The reaction involves a challenging C(sp)2-C(sp)3 bond cleavage step, yet, surprisingly, proceeds at low temperature.
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Affiliation(s)
- Puneet Kumar
- Department of Chemistry, University of Utah, 315 South, 1400 East, Salt Lake City, Utah 84112-0850
| | - Kainan Zhang
- Department of Chemistry, University of Utah, 315 South, 1400 East, Salt Lake City, Utah 84112-0850
| | - Janis Louie
- Department of Chemistry, University of Utah, 315 South, 1400 East, Salt Lake City, Utah 84112-0850
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48
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Kumar P, Zhang K, Louie J. An Expeditious Route to Eight‐Membered Heterocycles By Nickel‐Catalyzed Cycloaddition: Low‐Temperature CC Bond Cleavage. Angew Chem Int Ed Engl 2012. [DOI: 10.1002/ange.201203521] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Puneet Kumar
- Department of Chemistry, University of Utah, 315 South, 1400 East, Salt Lake City, Utah 84112‐0850 (USA) http://www.chem.utah.edu/faculty/louie/index.html
| | - Kainan Zhang
- Department of Chemistry, University of Utah, 315 South, 1400 East, Salt Lake City, Utah 84112‐0850 (USA) http://www.chem.utah.edu/faculty/louie/index.html
| | - Janis Louie
- Department of Chemistry, University of Utah, 315 South, 1400 East, Salt Lake City, Utah 84112‐0850 (USA) http://www.chem.utah.edu/faculty/louie/index.html
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49
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Ishida N, Yuhki T, Murakami M. Synthesis of Enantiopure Dehydropiperidinones from α-Amino Acids and Alkynes via Azetidin-3-ones. Org Lett 2012; 14:3898-901. [DOI: 10.1021/ol3016447] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Naoki Ishida
- Department of Synthetic Chemistry and Biological Chemistry, Kyoto University, Katsura, Kyoto 615-8510, Japan
| | - Tatsuya Yuhki
- Department of Synthetic Chemistry and Biological Chemistry, Kyoto University, Katsura, Kyoto 615-8510, Japan
| | - Masahiro Murakami
- Department of Synthetic Chemistry and Biological Chemistry, Kyoto University, Katsura, Kyoto 615-8510, Japan
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50
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Abstract
An easy and expeditious route to substituted piperidines is described. A Ni-phosphine complex was used as catalyst for [4 + 2] cycloaddition of 3-azetidinone and alkynes. The reaction has broad substrate scope and affords piperidines in excellent yields and excellent regioselectivity. In the reaction of an enantiopure azetidinone, complete retention of stereochemistry was observed.
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Affiliation(s)
- Puneet Kumar
- Department of Chemistry, University of Utah, 315 South 1400 East, Salt Lake City, Utah 84102, United States
| | - Janis Louie
- Department of Chemistry, University of Utah, 315 South 1400 East, Salt Lake City, Utah 84102, United States
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