1
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Chen J, Hu R, Bao Q, Shang D, Yu L, Chan PWH, Rao W. Ligand-controlled chemoselectivity in gold-catalyzed cascade cyclization of 1,4-diene-tethered 2-alkynylbenzaldehydes. Org Chem Front 2022. [DOI: 10.1039/d2qo01346k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
A synthetic method that relies on the gold(i)-catalyzed cascade annulation of skipped 1,4-diene-tethered 2-alkynylbenzaldehydes for the chemo- and stereoselective assembly polycyclic bridged-pyrrolidines and -azepines is described.
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Affiliation(s)
- Jichao Chen
- Jiangsu Co-Innovation Center for Efficient Processing and Utilization of Forest Resources, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Rui Hu
- Jiangsu Co-Innovation Center for Efficient Processing and Utilization of Forest Resources, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Qing Bao
- Jiangsu Co-Innovation Center for Efficient Processing and Utilization of Forest Resources, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Dandan Shang
- Jiangsu Co-Innovation Center for Efficient Processing and Utilization of Forest Resources, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Lei Yu
- School of Chemistry, Monash University, Clayton, Victoria 3800, Australia
| | | | - Weidong Rao
- Jiangsu Co-Innovation Center for Efficient Processing and Utilization of Forest Resources, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China
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2
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Zhang C, Wang G, Zhan L, Yang X, Wang J, Wei Y, Xu S, Shi M, Zhang J. Gold(I) or Gold(III) as Real Intermediate Species in Gold-Catalyzed Cycloaddition Reactions of Enynal/Enynone? ACS Catal 2020. [DOI: 10.1021/acscatal.0c00220] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Affiliation(s)
- Caiyun Zhang
- Key Laboratory for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, School of Chemistry and Molecular Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Gendi Wang
- Key Laboratory for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, School of Chemistry and Molecular Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Licheng Zhan
- Key Laboratory for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, School of Chemistry and Molecular Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Xueyan Yang
- Key Laboratory for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, School of Chemistry and Molecular Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Jiwei Wang
- Key Laboratory for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, School of Chemistry and Molecular Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Yin Wei
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 354 Fenglin Road, Shanghai 200032, China
| | - Sheng Xu
- Key Laboratory for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, School of Chemistry and Molecular Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Min Shi
- Key Laboratory for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, School of Chemistry and Molecular Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 354 Fenglin Road, Shanghai 200032, China
| | - Jun Zhang
- Key Laboratory for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, School of Chemistry and Molecular Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
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3
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Magiera KM, Aryal V, Chalifoux WA. Alkyne benzannulations in the preparation of contorted nanographenes. Org Biomol Chem 2020; 18:2372-2386. [PMID: 32196052 DOI: 10.1039/d0ob00182a] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Nanographenes are a popular area of research due to their promising properties for electronics. Over the last twenty years there has been a significant increase in interest in the development of contorted nanographenes. While many top-down techniques are employed in the synthesis of these planar nanographenes, the use of alkynes in bottom-up syntheses allows for easy functionalization and the development of contorted nanographenes. The syntheses of contorted nanographenes with a focus on utilizing alkynes is reviewed here.
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Affiliation(s)
- Kelsie M Magiera
- Department of Chemistry, University of Nevada, Reno, 1664 N. Virginia St., Reno, NV 89557, USA.
| | - Vivek Aryal
- Department of Chemistry, University of Nevada, Reno, 1664 N. Virginia St., Reno, NV 89557, USA.
| | - Wesley A Chalifoux
- Department of Chemistry, University of Nevada, Reno, 1664 N. Virginia St., Reno, NV 89557, USA.
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4
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Nardangeli N, Topolovčan N, Simionescu R, Hudlický T. Polarization Effect on Regioselectivity of Pd-Catalyzed Cyclization of 2-Alkynylbenzaldehydes. European J Org Chem 2019. [DOI: 10.1002/ejoc.201901203] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Affiliation(s)
- Nolan Nardangeli
- Department of Chemistry and Centre for Biotechnology; Brock University; 1812 Sir Isaac Brock Way L2S 3A1 St. Catharines Ontario Canada
| | - Nikola Topolovčan
- Department of Chemistry and Centre for Biotechnology; Brock University; 1812 Sir Isaac Brock Way L2S 3A1 St. Catharines Ontario Canada
| | - Razvan Simionescu
- Department of Chemistry and Centre for Biotechnology; Brock University; 1812 Sir Isaac Brock Way L2S 3A1 St. Catharines Ontario Canada
| | - Tomáš Hudlický
- Department of Chemistry and Centre for Biotechnology; Brock University; 1812 Sir Isaac Brock Way L2S 3A1 St. Catharines Ontario Canada
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5
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Sapegin A, Krasavin M. One-Pot Conversion of Aldehydes and Aryl Halides to Disubstituted Alkynes via Tandem Seyferth–Gilbert Homologation/Copper-Free Sonogashira Coupling. J Org Chem 2019; 84:8788-8795. [DOI: 10.1021/acs.joc.9b01367] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Affiliation(s)
| | - Mikhail Krasavin
- Saint Petersburg State University, Saint Petersburg 199034, Russia
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6
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Affiliation(s)
- Longlong Li
- Department of ChemistryLishui University No. 1, Xueyuan Road Lishui City 323000 Zhejiang Province People's Republic of China
| | - Dayun Huang
- Department of ChemistryLishui University No. 1, Xueyuan Road Lishui City 323000 Zhejiang Province People's Republic of China
| | - Chengjin Shi
- Department of ChemistryLishui University No. 1, Xueyuan Road Lishui City 323000 Zhejiang Province People's Republic of China
| | - Guobing Yan
- Department of ChemistryLishui University No. 1, Xueyuan Road Lishui City 323000 Zhejiang Province People's Republic of China
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7
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Senese AD, Chalifoux WA. Nanographene and Graphene Nanoribbon Synthesis via Alkyne Benzannulations. Molecules 2018; 24:molecules24010118. [PMID: 30598009 PMCID: PMC6337508 DOI: 10.3390/molecules24010118] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2018] [Revised: 12/24/2018] [Accepted: 12/25/2018] [Indexed: 11/16/2022] Open
Abstract
The extension of π-conjugation of polycyclic aromatic hydrocarbons (PAHs) via alkyne benzannulation reactions has become an increasingly utilized tool over the past few years. This short review will highlight recent work of alkyne benzannulations in the context of large nanographene as well as graphene nanoribbon synthesis along with a brief discussion of the interesting physical properties these molecules display.
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Affiliation(s)
- Amber D Senese
- Department of Chemistry, University of Nevada, Reno, 1664 N. Virginia St., Reno, NV 89557, USA.
| | - Wesley A Chalifoux
- Department of Chemistry, University of Nevada, Reno, 1664 N. Virginia St., Reno, NV 89557, USA.
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8
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Liang R, Zhang J, Chen L, Zhu S. Efficient Assembly of Tetracyclic Framework of Fluorenols through Silver-Catalyzed Tandem Reaction of Acceptor-Enynals and Alkynes via Unfavorable 6-endo
-dig
Cyclization. ASIAN J ORG CHEM 2018. [DOI: 10.1002/ajoc.201700613] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Renxiao Liang
- Key Laboratory of Functional Molecular Engineering of Guangdong Province; School of Chemistry and Chemical Engineering; South China University of Technology; 381 Wushan Road Guangzhou 510640 China
- College of Chemical Engineering; Zhejiang University of Technology; 18 Chaowang Road Hangzhou 310014 China
| | - Jiantao Zhang
- Key Laboratory of Functional Molecular Engineering of Guangdong Province; School of Chemistry and Chemical Engineering; South China University of Technology; 381 Wushan Road Guangzhou 510640 China
| | - Lianfen Chen
- Key Laboratory of Functional Molecular Engineering of Guangdong Province; School of Chemistry and Chemical Engineering; South China University of Technology; 381 Wushan Road Guangzhou 510640 China
| | - Shifa Zhu
- Key Laboratory of Functional Molecular Engineering of Guangdong Province; School of Chemistry and Chemical Engineering; South China University of Technology; 381 Wushan Road Guangzhou 510640 China
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9
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Muralidhar B, Reddy SR. Regioselective Cascade Synthesis of Chloro-Substituted 6 H-Benzo[ c]chromenes via Benzannulation. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2018. [DOI: 10.1246/bcsj.20170261] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Baitinti Muralidhar
- Department of Chemistry, School of Advanced Sciences, VIT University, Vellore-632 014, Tamilnadu, India
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10
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Abstract
Three kinds of transformations based on benzo-fused donor- and acceptor-enynals/enynones, including reactions with alkenes, alkynes, and H2O, were discussed.
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Affiliation(s)
- Lianfen Chen
- Key Laboratory of Functional Molecular Engineering of Guangdong Province
- School of Chemistry and Chemical Engineering
- South China University of Technology
- Guangzhou
- P. R. China
| | - Zhili Liu
- Key Laboratory of Functional Molecular Engineering of Guangdong Province
- School of Chemistry and Chemical Engineering
- South China University of Technology
- Guangzhou
- P. R. China
| | - Shifa Zhu
- Key Laboratory of Functional Molecular Engineering of Guangdong Province
- School of Chemistry and Chemical Engineering
- South China University of Technology
- Guangzhou
- P. R. China
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11
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Hein SJ, Lehnherr D, Arslan H, J. Uribe-Romo F, Dichtel WR. Alkyne Benzannulation Reactions for the Synthesis of Novel Aromatic Architectures. Acc Chem Res 2017; 50:2776-2788. [PMID: 29112367 DOI: 10.1021/acs.accounts.7b00385] [Citation(s) in RCA: 96] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Aromatic compounds and polymers are integrated into organic field effect transistors, light-emitting diodes, photovoltaic devices, and redox-flow batteries. These compounds and materials feature increasingly complex designs, and substituents influence energy levels, bandgaps, solution conformation, and crystal packing, all of which impact performance. However, many polycyclic aromatic hydrocarbons of interest are difficult to prepare because their substitution patterns lie outside the scope of current synthetic methods, as strategies for functionalizing benzene are often unselective when applied to naphthalene or larger systems. For example, cross-coupling and nucleophilic aromatic substitution reactions rely on prefunctionalized arenes, and even directed metalation methods most often modify positions near Lewis basic sites. Similarly, electrophilic aromatic substitutions access single regioisomers under substrate control. Cycloadditions provide a convergent route to densely functionalized aromatic compounds that compliment the above methods. After surveying cycloaddition reactions that might be used to modify the conjugated backbone of poly(phenylene ethynylene)s, we discovered that the Asao-Yamamoto benzannulation reaction is notably efficient. Although this reaction had been reported a decade earlier, its scope and usefulness for synthesizing complex aromatic systems had been under-recognized. This benzannulation reaction combines substituted 2-(phenylethynyl)benzaldehydes and substituted alkynes to form 2,3-substituted naphthalenes. The reaction tolerates a variety of sterically congested alkynes, making it well-suited for accessing poly- and oligo(ortho-arylene)s and contorted hexabenzocoronenes. In many cases in which asymmetric benzaldehyde and alkyne cycloaddition partners are used, the reaction is regiospecific based on the electronic character of the alkyne substrate. Recognizing these desirable features, we broadened the substrate scope to include silyl- and halogen-substituted alkynes. Through a combined experimental and computational approach, we have elucidated mechanistic insight and key principles that govern the regioselectivity outcome of the benzannulation of structurally diverse alkynes. We have applied these methods to prepare sterically hindered, shape-persistent aromatic systems, heterocyclic aromatic compounds, functionalized 2-aryne precursors, polyheterohalogenated naphthalenes, ortho-arylene foldamers, and graphene nanoribbons. As a result of these new synthetic avenues, aromatic structures with interesting properties were uncovered such as ambipolar charge transport in field effect transistors based on our graphene nanoribbons, conformational aspects of ortho-arylene architectures resulting from intramolecular π-stacking, and modulation of frontier molecular orbitals via protonation of heteroatom containing aromatic systems. Given the availability of many substituted 2-(phenylethynyl)benzaldehydes and the regioselectivity of the benzannulation reaction, naphthalenes can be prepared with control of the substitution pattern at seven of the eight substitutable positions. Researchers in a range of fields are likely to benefit directly from newly accessible molecular and polymeric systems derived from polyfunctionalized naphthalenes.
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Affiliation(s)
- Samuel J. Hein
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
- Department of Chemistry and Chemical Biology,
Baker Laboratory, Cornell University, Ithaca, New York 14853, United States
| | - Dan Lehnherr
- Department of Chemistry and Chemical Biology,
Baker Laboratory, Cornell University, Ithaca, New York 14853, United States
| | - Hasan Arslan
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
- Department of Chemistry and Chemical Biology,
Baker Laboratory, Cornell University, Ithaca, New York 14853, United States
| | - Fernando J. Uribe-Romo
- Department of Chemistry and Chemical Biology,
Baker Laboratory, Cornell University, Ithaca, New York 14853, United States
| | - William R. Dichtel
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
- Department of Chemistry and Chemical Biology,
Baker Laboratory, Cornell University, Ithaca, New York 14853, United States
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12
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Hein SJ, Lehnherr D, Dichtel WR. Rapid access to substituted 2-naphthyne intermediates via the benzannulation of halogenated silylalkynes. Chem Sci 2017; 8:5675-5681. [PMID: 28989606 PMCID: PMC5621055 DOI: 10.1039/c7sc01625e] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2017] [Accepted: 06/04/2017] [Indexed: 12/19/2022] Open
Abstract
A ZnCl2-catalyzed, regioselective benzannulation of halogenated silylacetylenes provides access to 2-naphthyne precursors.
Aryne intermediates are versatile and important reactive intermediates for natural product and polymer synthesis. 2-Naphthynes are relatively unexplored because few methods provide precursors to these intermediates, especially for those bearing additional substituents. Here we report a general synthetic strategy to access 2-naphthyne precursors through an Asao-Yamamoto benzannulation of ortho-(phenylethynyl)benzaldehydes with halo-silylalkynes. This transformation provides 2-halo-3-silylnaphthalenes with complete regioselectivity. These naphthalene products undergo desilylation/dehalogenation in the presence of F– to generate the corresponding 2-naphthyne intermediate, as evidenced by furan trapping experiments. When these 2-naphthynes are generated in the presence of a copper catalyst, ortho-naphthalene oligomers, trinaphthalene, or binaphthalene products are formed selectively by varying the catalyst loading and reaction temperature. The efficiency, mild conditions, and versatility of the naphthalene products and naphthyne intermediates will provide efficient access to many new functional aromatic systems.
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Affiliation(s)
- Samuel J Hein
- Department of Chemistry , Northwestern University , 2145 Sheridan Road , Evanston , Illinois 60208 , USA . .,Department of Chemistry and Chemical Biology , Baker Laboratory , Cornell University , Ithaca , New York 14853 , USA
| | - Dan Lehnherr
- Department of Chemistry and Chemical Biology , Baker Laboratory , Cornell University , Ithaca , New York 14853 , USA
| | - William R Dichtel
- Department of Chemistry , Northwestern University , 2145 Sheridan Road , Evanston , Illinois 60208 , USA .
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13
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Watanabe K, Mino T, Ishikawa E, Okano M, Ikematsu T, Yoshida Y, Sakamoto M, Sato K, Yoshida K. Synthesis of
o
‐Allyloxy(ethynyl)benzene Derivatives by Cu‐Catalyzed Suzuki–Miyaura‐Type Reaction and Their Transformations into Heterocyclic Compounds. European J Org Chem 2017. [DOI: 10.1002/ejoc.201700217] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Kohei Watanabe
- Department of Applied Chemistry and Biotechnology Graduate School of Engineering Chiba University 1–33, Yayoi‐cho, Inage‐ku 263‐8522 Chiba Japan
| | - Takashi Mino
- Department of Applied Chemistry and Biotechnology Graduate School of Engineering Chiba University 1–33, Yayoi‐cho, Inage‐ku 263‐8522 Chiba Japan
- Molecular Chirality Research Center Chiba University 1‐33, Yayoi‐cho, Inage‐ku 263‐8522 Chiba Japan
| | - Eri Ishikawa
- Department of Applied Chemistry and Biotechnology Graduate School of Engineering Chiba University 1–33, Yayoi‐cho, Inage‐ku 263‐8522 Chiba Japan
| | - Miyu Okano
- Department of Applied Chemistry and Biotechnology Graduate School of Engineering Chiba University 1–33, Yayoi‐cho, Inage‐ku 263‐8522 Chiba Japan
| | - Tatsuya Ikematsu
- Department of Applied Chemistry and Biotechnology Graduate School of Engineering Chiba University 1–33, Yayoi‐cho, Inage‐ku 263‐8522 Chiba Japan
| | - Yasushi Yoshida
- Department of Applied Chemistry and Biotechnology Graduate School of Engineering Chiba University 1–33, Yayoi‐cho, Inage‐ku 263‐8522 Chiba Japan
- Molecular Chirality Research Center Chiba University 1‐33, Yayoi‐cho, Inage‐ku 263‐8522 Chiba Japan
| | - Masami Sakamoto
- Department of Applied Chemistry and Biotechnology Graduate School of Engineering Chiba University 1–33, Yayoi‐cho, Inage‐ku 263‐8522 Chiba Japan
- Molecular Chirality Research Center Chiba University 1‐33, Yayoi‐cho, Inage‐ku 263‐8522 Chiba Japan
| | - Kazuki Sato
- Department of Chemistry Graduate School of Science Chiba University 1‐33, Yayoi‐cho, Inage‐ku 263‐8522 Chiba Japan
| | - Kazuhiro Yoshida
- Molecular Chirality Research Center Chiba University 1‐33, Yayoi‐cho, Inage‐ku 263‐8522 Chiba Japan
- Department of Chemistry Graduate School of Science Chiba University 1‐33, Yayoi‐cho, Inage‐ku 263‐8522 Chiba Japan
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14
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Ozaki K, Murai K, Matsuoka W, Kawasumi K, Ito H, Itami K. One‐Step Annulative π‐Extension of Alkynes with Dibenzosiloles or Dibenzogermoles by Palladium/
o
‐chloranil Catalysis. Angew Chem Int Ed Engl 2016; 56:1361-1364. [DOI: 10.1002/anie.201610374] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2016] [Revised: 11/24/2016] [Indexed: 11/09/2022]
Affiliation(s)
- Kyohei Ozaki
- Graduate School of Science Nagoya University, Chikusa Nagoya 464-8602 Japan
| | - Keiichiro Murai
- Graduate School of Science Nagoya University, Chikusa Nagoya 464-8602 Japan
| | - Wataru Matsuoka
- Graduate School of Science Nagoya University, Chikusa Nagoya 464-8602 Japan
| | - Katsuaki Kawasumi
- Graduate School of Science Nagoya University, Chikusa Nagoya 464-8602 Japan
| | - Hideto Ito
- Graduate School of Science Nagoya University, Chikusa Nagoya 464-8602 Japan
| | - Kenichiro Itami
- Graduate School of Science Nagoya University, Chikusa Nagoya 464-8602 Japan
- Institute of Transformative Bio-Molecules (WPI-ITbM) Nagoya University, Chikusa Nagoya 464-8601 Japan
- JST-ERATO, Itami Molecular Nanocarbon Project Nagoya University, Chikusa Nagoya 464-8602 Japan
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15
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Ozaki K, Murai K, Matsuoka W, Kawasumi K, Ito H, Itami K. One‐Step Annulative π‐Extension of Alkynes with Dibenzosiloles or Dibenzogermoles by Palladium/
o
‐chloranil Catalysis. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201610374] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Kyohei Ozaki
- Graduate School of Science Nagoya University, Chikusa Nagoya 464-8602 Japan
| | - Keiichiro Murai
- Graduate School of Science Nagoya University, Chikusa Nagoya 464-8602 Japan
| | - Wataru Matsuoka
- Graduate School of Science Nagoya University, Chikusa Nagoya 464-8602 Japan
| | - Katsuaki Kawasumi
- Graduate School of Science Nagoya University, Chikusa Nagoya 464-8602 Japan
| | - Hideto Ito
- Graduate School of Science Nagoya University, Chikusa Nagoya 464-8602 Japan
| | - Kenichiro Itami
- Graduate School of Science Nagoya University, Chikusa Nagoya 464-8602 Japan
- Institute of Transformative Bio-Molecules (WPI-ITbM) Nagoya University, Chikusa Nagoya 464-8601 Japan
- JST-ERATO, Itami Molecular Nanocarbon Project Nagoya University, Chikusa Nagoya 464-8602 Japan
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16
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Lehnherr D, Chen C, Pedramrazi Z, DeBlase CR, Alzola JM, Keresztes I, Lobkovsky EB, Crommie MF, Dichtel WR. Sequence-defined oligo( ortho-arylene) foldamers derived from the benzannulation of ortho(arylene ethynylene)s. Chem Sci 2016; 7:6357-6364. [PMID: 28567248 PMCID: PMC5450445 DOI: 10.1039/c6sc02520j] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2016] [Accepted: 07/06/2016] [Indexed: 01/10/2023] Open
Abstract
A Cu-catalyzed benzannulation reaction transforms ortho(arylene ethynylene) oligomers into ortho-arylenes.
A Cu-catalyzed benzannulation reaction transforms ortho(arylene ethynylene) oligomers into ortho-arylenes. This approach circumvents iterative Suzuki cross-coupling reactions previously used to assemble hindered ortho-arylene backbones. These derivatives form helical folded structures in the solid-state and in solution, as demonstrated by X-ray crystallography and solution-state NMR analysis. DFT calculations of misfolded conformations are correlated with variable-temperature 1H and EXSY NMR to reveal that folding is cooperative and more favorable in halide-substituted naphthalenes. Helical ortho-arylene foldamers with specific aromatic sequences organize functional π-electron systems into arrangements ideal for ambipolar charge transport and show preliminary promise for the surface-mediated synthesis of structurally defined graphene nanoribbons.
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Affiliation(s)
- Dan Lehnherr
- Department of Chemistry and Chemical Biology , Baker Laboratory , Cornell University , Ithaca , New York 14853-1301 , USA .
| | - Chen Chen
- Department of Physics , University of California at Berkeley , Berkeley , California 94720 , USA .
| | - Zahra Pedramrazi
- Department of Physics , University of California at Berkeley , Berkeley , California 94720 , USA .
| | - Catherine R DeBlase
- Department of Chemistry and Chemical Biology , Baker Laboratory , Cornell University , Ithaca , New York 14853-1301 , USA .
| | - Joaquin M Alzola
- Department of Chemistry and Chemical Biology , Baker Laboratory , Cornell University , Ithaca , New York 14853-1301 , USA .
| | - Ivan Keresztes
- Nuclear Magnetic Resonance Laboratory , Cornell University , Ithaca , New York 14853-1301 , USA
| | - Emil B Lobkovsky
- X-ray Crystallography Laboratory , Cornell University , Ithaca , New York 14853-1301 , USA
| | - Michael F Crommie
- Department of Physics , University of California at Berkeley , Berkeley , California 94720 , USA .
| | - William R Dichtel
- Department of Chemistry and Chemical Biology , Baker Laboratory , Cornell University , Ithaca , New York 14853-1301 , USA . .,Department of Chemistry , Northwestern University , Evanston , Illinois 60208 , USA
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17
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Lehnherr D, Alzola JM, Lobkovsky EB, Dichtel WR. Regioselective Synthesis of Polyheterohalogenated Naphthalenes via the Benzannulation of Haloalkynes. Chemistry 2015; 21:18122-7. [DOI: 10.1002/chem.201503418] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2015] [Indexed: 11/09/2022]
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18
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Mo L, Wu LL, Wang S, Yao ZJ. Efficient Synthesis of Octahydrophenanthrene Derivatives with Mild Cascade Reactions of Isochromenylium Tetrafluoroborates and Bifunctional Styrenes. Org Lett 2015; 17:3314-7. [DOI: 10.1021/acs.orglett.5b01532] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Lei Mo
- State Key Laboratory of Coordination
Chemistry, Collaborative Innovation Center of Chemistry for Life Sciences,
School of Chemistry and Chemical Engineering, Nanjing University, 22 Hankou Road, Nanjing, Jiangsu 210093, China
| | - Lin-Lin Wu
- State Key Laboratory of Coordination
Chemistry, Collaborative Innovation Center of Chemistry for Life Sciences,
School of Chemistry and Chemical Engineering, Nanjing University, 22 Hankou Road, Nanjing, Jiangsu 210093, China
| | - Shaozhong Wang
- State Key Laboratory of Coordination
Chemistry, Collaborative Innovation Center of Chemistry for Life Sciences,
School of Chemistry and Chemical Engineering, Nanjing University, 22 Hankou Road, Nanjing, Jiangsu 210093, China
| | - Zhu-Jun Yao
- State Key Laboratory of Coordination
Chemistry, Collaborative Innovation Center of Chemistry for Life Sciences,
School of Chemistry and Chemical Engineering, Nanjing University, 22 Hankou Road, Nanjing, Jiangsu 210093, China
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