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Yoshida N, Akasaka R, Awakura Y, Amaya T, Iwasawa T. Solution‐Processable Multi‐Substituted Buckybowls: Synthesis of Diindeno(1,2,3,4‐
defg
:1’,2’,3’,4’‐
mnop
)chrysene Derivatives. European J Org Chem 2021. [DOI: 10.1002/ejoc.202100869] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Naoki Yoshida
- Department of Materials Chemistry Ryukoku University Seta, Otsu Shiga 520-2194 Japan
| | - Ryuhei Akasaka
- Department of Materials Chemistry Ryukoku University Seta, Otsu Shiga 520-2194 Japan
| | - Yusuke Awakura
- Department of Materials Chemistry Ryukoku University Seta, Otsu Shiga 520-2194 Japan
| | - Toru Amaya
- Department of Information and Basic Science Graduate School of Science Nagoya City University Mizuho-ku, Nagoya Aichi 467-8501 Japan
| | - Tetsuo Iwasawa
- Department of Materials Chemistry Ryukoku University Seta, Otsu Shiga 520-2194 Japan
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2
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Scott LT. Methods for the chemical synthesis of carbon nanotubes: an approach based on hemispherical polyarene templates. PURE APPL CHEM 2017. [DOI: 10.1515/pac-2016-1222] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
AbstractHemispherical polyarenes represent attractive templates from which carbon nanotubes of the same diameter and rim structure (chirality) might be grown by repetitive annulation reactions. The resulting single-index (n,m) nanotubes would have one end open and the other end capped by the original template. Efforts in the author’s laboratory to synthesize (5,5) and (6,6) nanotube end-caps are described. Nitroethylene is shown to serve well as a “masked acetylene” for the conversion of polyarene bay regions into new unsubstituted benzene rings by a Diels-Alder cycloaddition/aromatization process. Benzyne reacts similarly, both in solution and in the gas phase. These annulation reactions are proposed as methods for elongating large-diameter templates that have bay regions on their rims into structurally uniform, single-walled carbon nanotubes. Unfortunately, the bay regions on the strongly curved rim of the small-diameter (5,5) nanotube end-cap 3 resist Diels-Alder cycloadditions with both nitroethylene and benzyne. Pentabenzocorannulene (14) is proposed as a promising candidate for surface-catalyzed cyclodehydrogenation to a surface-bound hemispherical polyarene that could serve as a template for synthesis of pure (5,5) carbon nanotubes.
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Affiliation(s)
- Lawrence T. Scott
- Merkert Chemistry Center, Boston College, Chestnut Hill, Massachusetts 02467, USA
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3
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Higashibayashi S, Pandit P, Haruki R, Adachi SI, Kumai R. Redox-Dependent Transformation of a Hydrazinobuckybowl between Curved and Planar Geometries. Angew Chem Int Ed Engl 2016; 55:10830-4. [DOI: 10.1002/anie.201605340] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2016] [Revised: 07/01/2016] [Indexed: 11/09/2022]
Affiliation(s)
| | - Palash Pandit
- Institute for Molecular Science; Myodaiji Okazaki 444-8787 Japan
| | - Rie Haruki
- Photon Factory; Institute of Materials Structure Science; High Energy Accelerator Research Organization; Tsukuba 305-0801 Japan
| | - Shin-ichi Adachi
- Photon Factory; Institute of Materials Structure Science; High Energy Accelerator Research Organization; Tsukuba 305-0801 Japan
| | - Reiji Kumai
- Photon Factory; Institute of Materials Structure Science; High Energy Accelerator Research Organization; Tsukuba 305-0801 Japan
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4
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Higashibayashi S, Pandit P, Haruki R, Adachi SI, Kumai R. Redox-Dependent Transformation of a Hydrazinobuckybowl between Curved and Planar Geometries. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201605340] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
| | - Palash Pandit
- Institute for Molecular Science; Myodaiji Okazaki 444-8787 Japan
| | - Rie Haruki
- Photon Factory; Institute of Materials Structure Science; High Energy Accelerator Research Organization; Tsukuba 305-0801 Japan
| | - Shin-ichi Adachi
- Photon Factory; Institute of Materials Structure Science; High Energy Accelerator Research Organization; Tsukuba 305-0801 Japan
| | - Reiji Kumai
- Photon Factory; Institute of Materials Structure Science; High Energy Accelerator Research Organization; Tsukuba 305-0801 Japan
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5
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Abstract
For more than 150 years, chemical reactions that make new covalent bonds to polycyclic aromatic hydrocarbons (PAHs) have been confined almost exclusively to substitution and addition reactions on the perimeters of the compounds ("edge chemistry"). The "interior" atoms of PAHs, those belonging to three rings, almost never engage in new σ-bond-forming reactions. A compound with no edges, C60, was the first polycyclic carbon π-system observed to exhibit such reactivity. More recently, smaller subunits of C60, which we call geodesic polyarenes, have also been found to exhibit "fullerene-type chemistry" at their interior carbon atoms. These reactions are all reviewed together here for the first time. The review ends with speculation that σ-bond-forming reactions may also be observed someday even in certain planar, benzenoid PAHs, although no examples have yet been reported.
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Affiliation(s)
- Lawrence T Scott
- Merkert Chemistry Center, Boston College, Chestnut Hill, MA 02467, USA.
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6
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Biedermann PU, Agranat I. Stereochemistry of bistricyclic aromatic enes and related polycyclic systems. Top Curr Chem (Cham) 2015; 350:177-277. [PMID: 25005068 DOI: 10.1007/128_2014_534] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Bistricyclic aromatic enes (BAEs) and related polycyclic systems are a class of molecular materials that display a rich variety of conformations, dynamic stereochemistry and switchable chirality, color, and spectroscopic properties. This is due to the a subtle interplay of the inherent preference for planarity of aromatic systems and the competing necessity of non-planarity due to intramolecular overcrowding in the fjord regions built into the general molecular structure of BAEs. The conformational, dynamic, and spectroscopic properties may be designed and fine-tuned, e.g., by variation of the bridging groups X and Y, the overcrowding in the fjord regions, extensions of the aromatic system, or other modifications of the general BAE structure, based on the fundamental understanding of the structure-property relationships (SPR). The present review provides an analysis of the conformational spaces and the dynamic stereochemistry of overcrowded bistricyclic aromatic enes applying fundamental symmetry considerations. The symmetry analysis presented here allows deeper insight into the conformations, chirality, and the mechanisms of the dynamic stereochemistry, and will be instrumental in future computational studies.
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Affiliation(s)
- P Ulrich Biedermann
- Organic Chemistry, Institute of Chemistry, The Hebrew University of Jerusalem, Philadelphia Bldg. #201-205, Edmond J. Safra Campus, Jerusalem, 91904, Israel,
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7
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Majewski MA, Lis T, Cybińska J, Stępień M. Chrysaorenes: assembling coronoid hydrocarbons via the fold-in synthesis. Chem Commun (Camb) 2015; 51:15094-7. [DOI: 10.1039/c5cc06046j] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Two coronoid hydrocarbons, [3]- and [4]chrysaorene, were synthesized from fluorenophane precursors using the fold-in strategy.
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Affiliation(s)
| | - Tadeusz Lis
- Wydział Chemii
- Uniwersytet Wrocławski
- 50-383 Wrocław
- Poland
| | | | - Marcin Stępień
- Wydział Chemii
- Uniwersytet Wrocławski
- 50-383 Wrocław
- Poland
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8
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Chang HI, Huang HT, Huang CH, Kuo MY, Wu YT. Diindeno[1,2,3,4-defg;1′,2′,3′,4′-mnop]chrysenes: solution-phase synthesis and the bowl-to-bowl inversion barrier. Chem Commun (Camb) 2010; 46:7241-3. [DOI: 10.1039/c0cc01730b] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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9
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Amick AW, Wakamiya A, Scott LT. Aryl−Aryl Bond Formation by Flash Vacuum Pyrolysis of Benzannulated Thiopyrans. J Org Chem 2008; 73:5119-22. [DOI: 10.1021/jo800379x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Aaron W. Amick
- Merkert Chemistry Center, Boston College, Chestnut Hill, Massachusetts 02467-3860 and Department of Chemistry, Graduate School of Science, Nagoya University, Furo, Chikusa, Nagoya 464-8602, Japan
| | - Atsushi Wakamiya
- Merkert Chemistry Center, Boston College, Chestnut Hill, Massachusetts 02467-3860 and Department of Chemistry, Graduate School of Science, Nagoya University, Furo, Chikusa, Nagoya 464-8602, Japan
| | - Lawrence T. Scott
- Merkert Chemistry Center, Boston College, Chestnut Hill, Massachusetts 02467-3860 and Department of Chemistry, Graduate School of Science, Nagoya University, Furo, Chikusa, Nagoya 464-8602, Japan
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10
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Pogodin S, Agranat I. Theoretical notions of aromaticity and antiaromaticity: phenalenyl ions versus fluorenyl ions. J Org Chem 2007; 72:10096-107. [PMID: 18020367 DOI: 10.1021/jo701939c] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The dications 6, 7, and 8 and dianions 9, 10, and 11 of the bistricyclic aromatic enes bifluorenylidene (1), 1,1'-biphenalenylidene (2), and 9-(9H-fluoren-9-ylidene)-1H-phenalene (4), as well as monocations 12a and 13a and monoanions 14a and 15a of phenalene (3) and fluorene (5), were subjected to a systematic DFT and ab initio study. B3LYP and MP2 methods were employed to estimate the relative aromaticity/antiaromaticity of these ions, using energetic, magnetic, and structural criteria. The couplings of monoions 12a-15a to give the respective diions 6-11 result in a similar destabilization in both the fluorene and phenalene series. The interactions between the C13H8 units in diions 6-11 are weak and are not expected to result in a significant loss of aromaticity/gain of antiaromaticity, as compared with the respective monoions. The antiaromaticity of bifluorenylidene dication (6), relative to that of two fluorenyl cations (12a), is only slightly enhanced as compared with the aromaticity of biphenalenylidene dication ((E)-7)) relative to that of two phenalenyl cations (13a). In particular, the homodesmotic reaction 6 + 2.13a = (E)-7 + 2.12a is only slightly exothermic, DeltaE(Tot) = -6.0 kJ/mol. The energetic effect of the analogous reaction involving anions 9 + 2.15a = (E)-10 + 2.14a is even smaller, DeltaE(Tot) = -3.4 kJ/mol. Bifluorenylidene dianion (9) and 1,1'-biphenalenylidene dianion ((E)-10) are aromatic, but the employed criteria disagree about their relative aromaticity. The electronic and structural properties of heteromerous dication 8 and dianion 11 lie between those of the homomerous diions. Thus, dications 6-8 and dianions 9-11 form a continuum of aromaticity/antiaromaticity.
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Affiliation(s)
- Sergey Pogodin
- Department of Organic Chemistry, The Hebrew University of Jerusalem, Jerusalem 91904, Israel
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11
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Affiliation(s)
- Vikki M Tsefrikas
- Merkert Chemistry Center, Boston College, Chestnut Hill, Massachusetts 02467, USA
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12
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Kim D, Petersen JL, Wang KK. Synthesis of Bowl-Shaped Polycyclic Aromatic Hydrocarbons via Palladium-Catalyzed Intramolecular Arylation Reactions. Org Lett 2006; 8:2313-6. [PMID: 16706514 DOI: 10.1021/ol0605676] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
[reaction: see text] Treatment of the benzannulated enediyne 11 with potassium tert-butoxide in refluxing toluene for 12 h produced 15 via a cascade sequence of cyclization reactions. Two subsequent palladium-catalyzed intramolecular arylation reactions then afforded the bowl-shaped polycyclic aromatic hydrocarbon 16. The X-ray structures of 16 and two closely related molecules show the presence of significant curvatures.
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Affiliation(s)
- Daehwan Kim
- C. Eugene Bennett Department of Chemistry, West Virginia University, Morgantown, 26506-6045, USA
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13
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Pogodin S, Agranat I. Biphenalenylidene: The Forgotten Bistricyclic Aromatic Ene. A Theoretical Study. J Am Chem Soc 2003; 125:12829-35. [PMID: 14558831 DOI: 10.1021/ja035968k] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The Lawesson reagent and P(2)S(5) mediated reductive coupling of phenalenone (6) gives LPAH peropyrene (5) in 47% and 54% yields. The mechanism of the reaction involves the formation of phenalenethione (10), Z- and E-1,1'-biphenalenylidene (3), and 9 as intermediates. The electrocyclization reaction of Z-3 to 9, followed by aromatization, gives 5. The results of an ab initio and DFT study of 3 and 2,2'-biphenalenylidene (12) are reported. E-3 and Z-3 have a diradical character with twist angles of 44.8 degrees and 57.8 degrees (at UB3LYP/6-311G**). Delta E(++)(Tot) = 10.2 kJ/mol and Delta G(++)(298) = 10.6 kJ/mol for E-3 <==> Z-3 diastereomerization. These unusually low energy barriers are due to the ground-state diradical destabilization and the aromatic stabilization of the transition state TS-3. Triplet Z-3 is higher in energy than singlets E-3 and Z-3 by 10.4 and 3.1 kJ/mol. In the concealed non-Kekulé 12, singlet 12 is more stable than the triplet by 1.3 kJ/mol. Singlet 12 is more stable than singlet E-3 by 2.0 kJ/mol, and orthogonal singlet TS-12 is lower in energy than singlet TS-3 by 6.0 kJ/mol. The energy barriers for the hexatriene-cyclohexadiene electrocyclization Z-3 --> 9 are Delta E(++)(Tot) = 94.8 and Delta G(++)(298) = 98.3 kJ/mol (at (U)B3LYP/6-31G). The reaction occurs thermally in a conrotatory mode.
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Affiliation(s)
- Sergey Pogodin
- Department of Organic Chemistry, The Hebrew University of Jerusalem, Jerusalem 91904, Israel
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14
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Bronstein HE, Choi N, Scott LT. Practical synthesis of an open geodesic polyarene with a fullerene-type 6:6-double bond at the center: diindeno[1,2,3,4-defg;1',2',3',4'-mnop]chrysene. J Am Chem Soc 2002; 124:8870-5. [PMID: 12137541 DOI: 10.1021/ja0123148] [Citation(s) in RCA: 55] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Diindeno[1,2,3,4-defg;1',2',3',4'-mnop]chrysene (1), the smallest possible alkene-centered C60 substructure with a curved pi-system, is obtained in 25-35% yield by flash vacuum pyrolysis of the twisted 1,1'-dibromobifluorenylidene (2) on a 100 mg scale at 1050 degrees C. At 1200 degrees C, the bowl-shaped hydrocarbon 1 rearranges to the planar isomer diindeno[5,6,7,1-defg;5',6',7',1'-lmnop]chrysene (14) by a double 5/6 ring-expansion/ring-contraction. X-ray crystallography establishes that the central carbon atoms of 1 are nearly 80% as pyramidalized as the carbon atoms of C60 (POAV angles = 9.0 degrees and 11.6 degrees for 1 and C60, respectively). A four-step synthesis has been developed to prepare the pyrolysis precursor (2) as a mixture of (E)- and (Z)-isomers in 39% overall yield from commercially available 9-fluorenone-1-carboxylic acid (10).
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Affiliation(s)
- Hindy E Bronstein
- Department of Chemistry, Merkert Chemistry Center, Boston College, Chestnut Hill, Massachusetts 02467-3860, USA
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15
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Shenhar R, Beust R, Hoffman RE, Willner I, Bronstein HE, Scott LT, Rabinovitz M. Lithium reduction of the bowl-shaped C60 fragment diindeno[1,2,3,4-defg;1',2',3',4'-mnop]chrysene: an interplay between experiment and calculation. J Org Chem 2001; 66:6004-13. [PMID: 11529725 DOI: 10.1021/jo010103f] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Diindeno[1,2,3,4-defg;1',2',3',4'-mnop]chrysene (DIC) (one of the smallest symmetrical bowl-shaped fragments of C60) and its tetra-tert-butyl derivative are reduced with lithium metal to yield dianions and tetraanions. Due to the high degree of symmetry (C2v) of DIC and its derivative, their NMR spectra cannot be assigned using the standard two-dimensional NMR techniques. A novel carbon-edited NOESY method was used to complete the assignments of the neutral and dianion species, whereas the tetraanions are aided by DFT calculations for their assignment. Experimental charge-distribution patterns were obtained and match those of the calculations. An extension of the empirical approach for estimating the charge distribution from the 13C NMR spectra enables a direct comparison between experimentally derived charge-distribution data and the computed electron density in each of the lowest unoccupied molecular orbitals. The overall picture evolving from the orbital structure of DIC is presented and reflects the surface reactivity of C60.
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Affiliation(s)
- R Shenhar
- Department of Organic Chemistry, The Hebrew University of Jerusalem, Jerusalem, Israel 91904
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Biedermann P, Stezowski J, Agranat I. Conformational Space and Dynamic Stereochemistry of Overcrowded Homomerous Bistricyclic Aromatic Enes − A Theoretical Study. European J Org Chem 2001. [DOI: 10.1002/1099-0690(200101)2001:1<15::aid-ejoc15>3.0.co;2-0] [Citation(s) in RCA: 77] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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17
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Biedermann P, Stezowski J, Agranat I. Conformational Space and Dynamic Stereochemistry of Overcrowded Homomerous Bistricyclic Aromatic Enes − A Theoretical Study. European J Org Chem 2001. [DOI: 10.1002/1099-0690(200101)2001:1%3c15::aid-ejoc15%3e3.0.co%3b2-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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18
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Ansems RBM, Scott LT. Circumtrindene: A Geodesic Dome of Molecular Dimensions. Rational Synthesis of 60 of C 601. J Am Chem Soc 2000. [DOI: 10.1021/ja993028n] [Citation(s) in RCA: 99] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Ronald B. M. Ansems
- Contribution from the Department of Chemistry, Merkert Chemistry Center, Boston College, Chestnut Hill, Massachusetts 02467-3860
| | - Lawrence T. Scott
- Contribution from the Department of Chemistry, Merkert Chemistry Center, Boston College, Chestnut Hill, Massachusetts 02467-3860
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Affiliation(s)
- Sergey Pogodin
- Department of Organic Chemistry, The Hebrew University of Jerusalem, Jerusalem 91904, Israel
| | - Israel Agranat
- Department of Organic Chemistry, The Hebrew University of Jerusalem, Jerusalem 91904, Israel
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20
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Biedermann PU, Pogodin S, Agranat I. Inversion Barrier of Corannulene. A Benchmark for Bowl-to-Bowl Inversions in Fullerene Fragments. J Org Chem 1999; 64:3655-3662. [PMID: 11674494 DOI: 10.1021/jo9900174] [Citation(s) in RCA: 40] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
In a systematic ab initio study, the Hartree-Fock, B3LYP density functional, and MP2 methods are employed to calculate the bowl-to-bowl inversion barrier of corannulene (1). Basis sets ranging from a minimal basis (STO-3G) to a double polarized valence triple-zeta basis (6-311G(2d,2p)) were used. In comparison with experimental data, it was found that inclusion of dynamic electron correlation (e.g., B3LYP) and a 6-311G basis set (or other basis sets with similar complexity) are essential for quantitatively correct results. At B3LYP/6-311G, DeltaG()(298) = 44.9 kJ/mol. Thermal corrections to Gibbs energy of activation were of minor importance in the relevant range of temperatures. Inversion barriers (DeltaE()(Tot)) of the bowl-shaped fullerene fragments C(26)H(12) 4 and C(30)H(12) 5 and the chiral C(30)H(12) 6 are predicted to be 28.0, 199.4, and 277.3 kJ/mol, respectively, at B3LYP/6-311G. Predicted enthalpies of formations and strain energies are also discussed.
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Affiliation(s)
- P. Ulrich Biedermann
- Department of Organic Chemistry, The Hebrew University of Jerusalem, Jerusalem 91904, Israel
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22
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23
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Mills NS, Malandra JL, Hensen A, Lowery JA. Attempted Synthesis of Bowl-Shaped Polycyclic Aromatic Hydrocarbons via Oxidative Electrocyclization. Products from the Dications of Dibenzo [g, p] chrysene, Tetrabenzo[5.5]fulvalene, and Diphenylmethylidenefluorene. Polycycl Aromat Compd 1998. [DOI: 10.1080/10406639808233841] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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24
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Overcrowded polycyclic aromatic enes. ACTA ACUST UNITED AC 1998. [DOI: 10.1016/s1046-5766(98)80018-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/18/2023]
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25
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Sarobe M, Jenneskens LW. High-Temperature Behavior of 1,8-Diethynylanthracene. Benz[mno]aceanthrylene, a Transient Intermediate for Cyclopenta[cd]pyrene. J Org Chem 1997; 62:8247-8250. [PMID: 11671946 DOI: 10.1021/jo970654z] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Martin Sarobe
- Debye Institute, Department of Physical Organic Chemistry, Utrecht University, Padualaan 8, 3584 CH Utrecht, The Netherlands
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Plummer B, Guterriez S, Navikov A, Goodman D. Synthesis of Benz[1,2-a]aceanthrylene from Triptycene via Flash Vacuum Thermolysis. SYNTHETIC COMMUN 1997. [DOI: 10.1080/00397919708004181] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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27
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Pogodin S, Biedermann PU, Agranat I. Facile Aromatization Reactions of Overcrowded Polycyclic Aromatic Enes Leading to Fullerene Fragments. J Org Chem 1997; 62:2285-2287. [PMID: 11671545 DOI: 10.1021/jo9700991] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Sergey Pogodin
- Department of Organic Chemistry, The Hebrew University of Jerusalem, Jerusalem 91904, Israel
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28
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Hagen S, Bratcher MS, Erickson MS, Zimmermann G, Scott LT. Neue Synthesen von drei schalenförmigen aromatischen C30H12-Kohlenwasserstoffen. Angew Chem Int Ed Engl 1997. [DOI: 10.1002/ange.19971090426] [Citation(s) in RCA: 25] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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29
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Biedermann PU, Luh TY, Wengc DTC, Kuo CH, Stezowski JJ, Agranat I. From Overcrowded Polycyclic Aromatic Enes to Semifullerenes. Polycycl Aromat Compd 1996. [DOI: 10.1080/10406639608048342] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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30
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Rabideau PW, Sygula A. Buckybowls: Polynuclear Aromatic Hydrocarbons Related to the Buckminsterfullerene Surface. Acc Chem Res 1996. [DOI: 10.1021/ar950197d] [Citation(s) in RCA: 295] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Peter W. Rabideau
- Department of Chemistry, Louisiana State University, Baton Rouge, Louisiana 70803
| | - Andrzej Sygula
- Department of Chemistry, Louisiana State University, Baton Rouge, Louisiana 70803
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