Startseite The crystal structure of 5-tert-butyl-2-(5-tert-butyl-3-iodo-benzofuran-2-yl)-3-iodobenzofuran, C24H24I2O2
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The crystal structure of 5-tert-butyl-2-(5-tert-butyl-3-iodo-benzofuran-2-yl)-3-iodobenzofuran, C24H24I2O2

  • Yun Yang , Yuan Gao , Baobao Ji , Dongxia Zhao , Xiaoqiang Zhou , Yuqi Zhang , Jijiang Wang und Erlin Yue ORCID logo EMAIL logo
Veröffentlicht/Copyright: 18. März 2024

Abstract

C24H24I2O2, monoclinic, P21/n (no. 14), a = 11.128(2) Å, b = 5.7775(12) Å, c = 17.607(4) Å, β = 98.87(3)°, V = 1118.4(4) Å3, Z = 2, R gt(F) = 0.0246, wR ref(F 2) = 0.0537, T = 296(2) K.

CCDC no.: 2324920

The molecular structure is shown in the figure. Table 1 contains crystallographic data and Table 2 contains the list of the atoms including atomic coordinates and displacement parameters.

Table 1:

Data collection and handling.

Crystal: Yellow block
Size: 0.23 × 0.21 × 0.19 mm
Wavelength: MoKα radiation (0.71073 Å)
μ: 2.83 mm−1
Diffractometer, scan mode: Bruker APEX-II, φ and ω
θ max, completeness: 27.9°, >99 %
N(hkl)measured, N(hkl)unique, R int: 6656, 2641, 0.023
Criterion for I obs, N(hkl)gt: I obs > 2 σ(I obs), 2189
N(param)refined: 130
Programs: Bruker [1], Shelx [2, 3]
Table 2:

Fractional atomic coordinates and isotropic or equivalent isotropic displacement parameters (Å2).

Atom x y z U iso*/U eq
C1 0.5017 (2) 0.4394 (5) −0.03552 (13) 0.0322 (6)
C2 0.5701 (2) 0.2659 (5) −0.05807 (13) 0.0308 (6)
C3 0.5269 (2) 0.2237 (5) −0.13819 (13) 0.0296 (5)
C4 0.5602 (2) 0.0753 (5) −0.19381 (13) 0.0300 (5)
H4 0.6228 −0.0311 −0.1810 0.036*
C5 0.4987 (2) 0.0881 (5) −0.26852 (13) 0.0297 (5)
C6 0.4031 (2) 0.2460 (5) −0.28461 (13) 0.0349 (6)
H6 0.3616 0.2527 −0.3346 0.042*
C7 0.3667 (2) 0.3926 (5) −0.23064 (14) 0.0366 (6)
H7 0.3017 0.4943 −0.2426 0.044*
C8 0.4330 (2) 0.3786 (5) −0.15752 (14) 0.0326 (6)
C9 0.5366 (3) −0.0552 (5) −0.33396 (14) 0.0342 (6)
C10 0.4253 (3) −0.1699 (6) −0.38181 (16) 0.0481 (8)
H10A 0.3838 −0.2631 −0.3489 0.072*
H10B 0.4514 −0.2658 −0.4207 0.072*
H10C 0.3713 −0.0524 −0.4057 0.072*
C11 0.5951 (3) 0.1080 (6) −0.38652 (18) 0.0551 (9)
H11A 0.5367 0.2217 −0.4080 0.083*
H11B 0.6215 0.0203 −0.4273 0.083*
H11C 0.6638 0.1839 −0.3572 0.083*
C12 0.6275 (3) −0.2438 (6) −0.30448 (16) 0.0486 (8)
H12A 0.7011 −0.1741 −0.2790 0.073*
H12B 0.6451 −0.3353 −0.3469 0.073*
H12C 0.5936 −0.3409 −0.2689 0.073*
I1 0.70674 (2) 0.07277 (3) 0.00468 (2) 0.04253 (7)
O1 0.41526 (17) 0.5130 (3) −0.09584 (9) 0.0373 (4)

1 Source of materials

The 1,4-bis(5-tert-butyl-2-methoxyphenyl)buta-1,3-diyne (synthesized by the literature reported procedure [4]) (1.20 g, 3.20 mmol) was dissolved in dry dichloromethane (5 mL), and a dichloromethane solution (20 mL) of I2 (3.26 g, 12.82 mmol) was added dropwise to the reaction mixture at room temperature. Reaction progress was detected by TLC for 10 h, the reaction was quenched with saturated sodium sulfite solution (40 mL), extracted with dichloromethane (50 mL × 3), dried with anhydrous magnesium sulfate, filtered and concentrated to obtain crude residues. The yellow solid, namely, 5-tert-butyl-2-(5-tert-butyl-3-iodobenzofuran-2-yl)-3-iodobenzofuran (1.72 g, 90 %), was obtained by silica gel column chromatography. Melting point: 175–176 °C. Crystals of the title compound were obtained in a mixture of dichloromethane and diethyl ether. 1 H NMR (400 MHz, CDCl3) δ 7.50–7.46 (m, 3H), 1.42 (d, J = 1.2 Hz, 9H). 13 C NMR (100 MHz, CDCl3) δ 152.66, 147.53, 146.38, 131.12, 125.03, 118.37, 111.12, 66.20, 35.08, 31.93, 29.85.

2 Experimental details

The crystal structure was solved using the Shelxs [2] structure solution program and refined with the Shelxl [3]. All hydrogen atoms were placed in calculated positions and refined as riding on their parent atom.

3 Comment

3,3′-Diiodo-2,2′-bibenzofuran derivatives are an important class of organic reaction intermediates [4] and used to synthesize heteropentacenes with π-conjugated systems in material science [5], [6], [7]. In this paper, a para-tert-butyl substituted 3,3′-diiodo-2,2′-bibenzofuran derivative, namely, 5-tert-butyl-2-(5-tert-butyl-3-iodobenzofuran-2-yl)-3-iodobenzofuran was synthesized by using the iodine electrophilic cyclization reaction of 1,4-bis(2-methoxy-3,5-ditert-butylphenyl)-1,3-diyne with I2 [4].

The crystal structure of the title compound indicates that it is a centrosymmetric structure with the inversion center of the C–C bond as the center of symmetry. Its molecular structure contains two benzofuran rings, two iodine atoms and two tert-butyl groups. As illustrated in the figure, an anti-arrangement of two benzofuran moieties and two iodine atoms were observed. In the crystal structure, the carbon-carbon double bond length of C1–C2 is 1.355(4) Å, which is typical for carbon-carbon double bond [8]. The bond lengths of O1–C1 and O1–C8 are 1.385(3) and 1.374(3) Å, respectively. The bond distance of C2–I1 is 2.064(2) Å. These bond lengths are within the normal range [9]. In addition, the plane (C3/C4/C8) of benzene ring and the plane (C1/C2/O1) of furan ring are approximately coplanar and their dihedral angle is only 0.81°, which is similar to the reported related structure containing a benzofuran moiety [9]. The two furan rings lie in a highly coplanar arrangement with the dihedral angle of about 0.81° by connection of C1–C1 i .


Corresponding author: Erlin Yue, College of Chemistry and Chemical Engineering, Yan’an University, Yan’an, Shaanxi 716000, People’s Republic of China, E-mail:

Funding source: Yan'an High-level Talents Special Foundation

Award Identifier / Grant number: 2019-33

Funding source: College Students Innovation and Entrepreneurship Training Program of Yan’an University

Award Identifier / Grant number: D2021030

Funding source: Scientific Research Program Funded by Shaanxi Provincial Education Department

Award Identifier / Grant number: 23JK0432

Acknowledgments

We gratefully acknowledge the supports of Yan’an University.

  1. Author contribution: All the authors have accepted responsibility for the entire content of this submitted manuscript and approved submission.

  2. Research funding: Yan’an High-level Talents Special Foundation (Program No. 2019-33); College Students Innovation and Entrepreneurship Training Program of Yan’an University (Program No. D2021030) and Scientific Research Program Funded by Shaanxi Provincial Education Department (Program No. 23JK0432).

  3. Conflict of interest statement: The authors declare no conflicts of interest regarding this article.

References

1. Bruker. Apex2, Sadabs, Xprep and Saint-Plus; Bruker AXS Inc.: Madison, 2004.Suche in Google Scholar

2. Sheldrick, G. M. SHELXTL – integrated space-group and crystal-structure determination. Acta Crystallogr. 2015, A71, 3–8.10.1107/S2053273314026370Suche in Google Scholar PubMed PubMed Central

3. Sheldrick, G. M. Crystal structure refinement with SHELXL. Acta Crystallogr. 2015, C71, 3–8; https://doi.org/10.1107/s2053229614024218.Suche in Google Scholar PubMed PubMed Central

4. Larock, R. C., Mehta, S. Iodine/palladium approaches to the synthesis of polyheterocyclic compounds. J. Org. Chem. 2010, 75, 1652–1658; https://doi.org/10.1021/jo902639f.Suche in Google Scholar PubMed PubMed Central

5. Chen, H., Delaunay, W., Li, J., Wang, Z. Y., Bouit, P. A., Tondelier, D., Geffroy, B., Mathey, F., Duan, Z., Réau, R., Hissler, M. Benzofuran-fused phosphole: synthesis, electronic, and electroluminescence properties. Org. Lett. 2013, 15, 330–333; https://doi.org/10.1021/ol303260d.Suche in Google Scholar PubMed

6. Zhang, F. B., Adachi, Y., Ooyama, Y., Ohshita, J. Synthesis and properties of benzofuran-fused silole and germole derivatives: reversible dimerization and crystal structures of monomers and dimers. Organometallics 2016, 35, 2327–2332; https://doi.org/10.1021/acs.organomet.6b00222.Suche in Google Scholar

7. Imoto, H., Fujii, T., Tanaka, S., Yamamoto, S., Mitsuishi, M., Yumura, T., Naka, K. As-heteropentacenes: an experimental and computational study on a novel class of heteroacenes. Org. Lett. 2018, 20, 5952–5955; https://doi.org/10.1021/acs.orglett.8b02660.Suche in Google Scholar PubMed

8. Wang, M. D., Lu, W. W., Wang, J. L., Li, M. Y., Feng, Y. Y., Ma, J.-Y. The crystal structure of 1-(3-oxo-1-phenyl-3-(p-tolyl)propylidene)-1,3-dihydro-2H – inden-2-one, C25H20O2. Z. Kristallogr. N. Cryst. Struct. 2024, 239, 23–24; https://doi.org/10.1515/ncrs-2023-0418.Suche in Google Scholar

9. Zhang, M., Bai, Y.-B. The crystal structure of (2R,6′R)-2′,7-dichloro-4,6-dimethoxy-6′- methyl-3H-spiro[benzofuran-2,1′-cyclohexan]-2′-ene-3,4′-dione, C16H14Cl2O5. Z. Kristallogr. N. Cryst. Struct. 2023, 238, 185–187; https://doi.org/10.1515/ncrs-2022-0538.Suche in Google Scholar

Received: 2024-02-03
Accepted: 2024-03-01
Published Online: 2024-03-18
Published in Print: 2024-06-25

© 2024 the author(s), published by De Gruyter, Berlin/Boston

This work is licensed under the Creative Commons Attribution 4.0 International License.

Artikel in diesem Heft

  1. Frontmatter
  2. New Crystal Structures
  3. The crystal structure of tris((Z)-2-hydroxy-N-((E)-pyridin-2-ylmethylene)benzohydrazonato-k2O,N)europium(III), C39H30N9O6Eu
  4. Crystal structure of (E)-3-(benzylideneamino)-2-phenylthiazolidin-4-one, C16H14N2OS
  5. The crystal structure of (E)-4-fluoro-N′-(1-(o-tolyl)ethylidene)benzohydrazide, C16H15FN2O
  6. Crystal structure of (6-chloropyridin-3-yl)methyl 2-(6-methoxynaphthalen-2-yl)propanoate, C20H18ClNO3
  7. Crystal structure of methyl 3-methoxy-4-(2-methoxy-2-oxoethoxy)benzoate, C12H14O6
  8. The crystal structure of bis[(4-methoxyphenyl)(picolinoyl)amido-κ2 N:N′]copper(II), C26H22CuN4O4
  9. The crystal structure of poly[di(μ2-aqua)-diaqua-bis(3-aminopyridine-4-carboxylate-κ2 O: O′)-tetra(μ2-3-aminopyridine-4-carboxylate-κ2 O: O′)-dineodymium(III), [Nd2(C6H5N2O2)6(H2O)4] n
  10. The crystal structure of t-butyl 7-[3-(4-fluorophenyl)-1-(propan-2-yl)-1H-indol-2-yl]-3,5-dihydroxyhept-6-enoate, C28H34FNO4
  11. Crystal structure of catena-poly[(benzylamine-κ1 N)-(sorbato-κ1 O)-(μ2-sorbato-κ2 O,O′)-copper(II), C19H23CuNO4
  12. Crystal structure of (4-(2-chlorophenyl)-1H-pyrrol-3-yl)(ferrocenyl) methanone, C21H16ClFeNO
  13. The crystal structure of N-[4-(4-bromophenyl)-1,3-thiazol-2-yl]-3-(2-methylphenyl)-2-sulfanylprop-2-enamide hydrate, C19H17BrN2O2S2
  14. The crystal structure of N′-{5-[2-(2,6-dimethylphenoxy) acetamido]-4-hydroxy-1,6-diphenylhexan-2-yl}-3-methyl-2-(2-oxo-1,3-diazinan-1-yl)butanamide hydrate
  15. Crystal structure of 2-(naphthalen-1-yl)ethyl 2-(6-methoxynaphthalen-2-yl)propanoate, C26H24O3
  16. Crystal structure of naphthalen-1-ylmethyl 2-(6-methoxynaphthalen-2-yl)propanoate, C25H22O3
  17. Crystal structure of poly[diaqua- (μ4-5-(1H-1,2,4-triazol-1-yl)benzene-1,3-dicarboxylato-κ5N:O,O’:O’’:O’’’)calcium(II), C10H9CaN3O6
  18. Crystal structure of (E)-N′-(4-((E)-3-(dimethylamino)acryloyl)-3-hydroxyphenyl)-N, N-dimethylformimidamide, C14H19N3O2
  19. Crystal structure of (E)-3-(dimethylamino)-1-(2-hydroxy-4,6-dimethoxyphenyl)prop-2-en-1-one, C13H17NO4
  20. Crystal structure of (2-chloropyridin-3-yl)methyl-2-(6-methoxynaphthalen-2-yl)propanoate, C20H18ClNO3
  21. The crystal structure of diethyl 4-(3,4-dimethylphenyl)-2,6-dimethyl-1,4-dihydropyridine-3,5-dicarboxylate, C21H27NO4
  22. Crystal structure of (8R,9S,10R,13S,14S,17S)-17-hydroxy-10,13-dimethyl-17-((4-(2-phenylpropyl)phenyl)ethynyl)-1,2,6,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-3H-cyclopenta[a]phenanthren-3-one, C36H42O2
  23. Synthesis and crystal structure of 4-(4-cyclopropylnaphthalen-1-yl)-2,4-dihydro-3H-1,2,4-triazole-3-thione, C15H13N3S
  24. Crystal structure of catena-poly[aqua-(2,6-di-(2-pyridyl)-pyridine-κ3 N,N′, N″)(μ2-1,4-naphthalene dicarboxylato-κ2 O,O′)nickel(II)], C27H19NiN3O5
  25. Crystal structure of 3-(diphenylphosphoryl)-3-hydroxy-1-phenylpropan-1-one, C21H19O3P
  26. The crystal structure of R,S-{N-[(2-oxidonaphthalen-1-yl)methylidene]phenylglycinato}divinylsilicon, C23H19NO3Si
  27. The crystal structure of 1,2,4-tris(bromomethyl)benzene, C9H9Br3
  28. Crystal structure of chlorido-[4-(pyridin-2-yl)benzaldehyde-κ2 N,C]-(diethylamine-κ1 N)platinum(II), C16H18ClN2OPt
  29. Crystal structure of 3-(methoxycarbonyl)-1-(4-methoxyphenyl)-2,3,4,9- tetrahydro-1H-pyrido[3,4-b]indol-2-ium chloride hydrate, C40H48Cl2N4O9
  30. The crystal structure of 1-(2-chlorobenzyl)-3-(3-chlorophenyl)urea, C14H12Cl2N2O
  31. Hydrothermal synthesis and crystal structure of aqua-tris(4-acetamidobenzoato-κ2 O,O′)-(1,10-phenanthroline-κ2 N,N′)terbium(III) hydrate C39H36N5O11Tb
  32. The crystal structure of zwitterionic 3-aminoisonicotinic acid, C6H6N2O2
  33. The crystal structure of bis{[monoaqua-μ2-4-[(pyridine-4-carbonyl)-amino]-phthalato-κ3 N:O,O′-(2,2′-bipyridine κ2 N,N′)copper(II)]}decahydrate, C48H56N8O22Cu2
  34. Crystal structure of poly[μ10-4,4′-methylene-bis(oxy)benzoatodipotassium], C15H10K2O6
  35. The crystal structure of catena-poly[[tetraaqua[(μ2-1,4-di(4-methyl-1-imidazolyl)benzene] cobalt(II)]bis(formate)], C16H24CoN4O8
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  37. The crystal structure of (E)-1-(((2-amino-4,5-dimethylphenyl)iminio)methyl)naphthalen-2-olate, C19H18N2O
  38. Crystal structure of N-(acridin-9-yl)-2-(4-methylpiperidin-1-yl) acetamide monohydrate, C21H25N3O2
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  42. Synthesis and crystal structure of methyl 2-{[4-(4-cyclopropyl-1-naphthyl)-4H-1,2,4-triazole-3-yl]thio} acetate, C18H17N3O2S
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  58. Crystal structure of 2-(5-ethylpyridin-2-yl)ethyl 2-(6-methoxynaphthalen-2-yl)propanoate, C23H25NO3
  59. Crystal structure of N-(1-(3,4-dimethoxyphenyl)-2-methylpropyl)aniline, C18H23NO2
  60. Crystal structure of Ba6Cd12Mn4SiF48
  61. Synthesis and crystal structure of 5-fluoro-1-methyl-2-oxo-3-(2-oxochroman-4-yl)indolin-3-yl acetate, C20H16FNO5
  62. The crystal structure of 6-methacryloylbenzo[d][1,3]dioxol-5-yl 4-nitrobenzenesulfonate, C17H13NO8S
  63. Crystal structure of ethyl 2-(3-benzyl-4-oxo-3,4-dihydrophthalazin-1-yl)- 2,2-difluoroacetate, C19H16F2N2O3
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  65. Synthesis and crystal structure of trans-tetraaqua-bis((1-((7-hydroxy-3-(4-methoxy-3-sulfonatophenyl)-4-oxo-4H-chromen-8-yl)methyl)piperidin-1-ium-4-carbonyl)oxy-κO)zinc(II)hexahydrate, C46H64N2O28S2Zn
  66. The crystal structure of 1-(4-carboxybutyl)-3-methyl-1H-imidazol-3-ium hexafluoridophosphate, C9H15F6N2O2P
  67. Crystal structure of 1-(4-chlorophenyl)-4-(2-furoyl)-3-phenyl-1H-pyrazol-5-ol, C20H13ClN2O3
  68. Crystal structure of dimethyl (R)-2-(3-(1-phenylethyl)thioureido)-[1,1′-biphenyl]-4,4′-dicarboxylate, C25H24N2O4S
  69. The crystal structure of 1-(3-carboxypropyl)-1H-imidazole-3-oxide, C7H10N2O3
  70. Synthesis and crystal structure of dimethyl 4,4′-(propane-1,3-diylbis(oxy))dibenzoate, C19H20O6
  71. Crystal structure of methyl-1-(p-tolyl)-2,3,4,9-tetrahydro-1H-pyrido[3,4-b]indole-3-carboxylate, C20H20N2O2
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