Home Physical Sciences The crystal structre of 2-(4-bromophenyl)-2,3-dihydro-1H-naphtho[1,8-de][1,3,2]diazaborinine, C16H12BBrN2
Article Open Access

The crystal structre of 2-(4-bromophenyl)-2,3-dihydro-1H-naphtho[1,8-de][1,3,2]diazaborinine, C16H12BBrN2

  • Siyi Ding ORCID logo EMAIL logo , Min Zhu ORCID logo and Zong-Cheng Miao
Published/Copyright: December 10, 2020

Abstract

C16H12BBrN2, monoclinic, P21 (no. 4), a = 4.7061(3) Å, b = 10.4639(6) Å, c = 13.5675(8) Å, β = 97.512(2)°, V = 662.39(7) Å3, Z = 2, Rgt(F) = 0.0384, wRref(F2) = 0.0995, T = 189.98 K.

CCDC no.: 2040532

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:Colorless needle
Size:0.10 × 0.08 × 0.06 mm
Wavelength:Ga Kα radiation (1.34139 Å)
μ:2.72 mm−1
Diffractometer, scan mode:Bruker APEX-II, φ and ω
θmax, completeness:53.9°, 98%
N(hkl)measured, N(hkl)unique, Rint:3991, 2427, 0.044
Criterion for Iobs, N(hkl)gt:Iobs > 2 σ(Iobs), 2188
N(param)refined:181
Programs:Bruker [1], Olex2 [2], SHELX [3], [4]
Table 2:

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

AtomxYzUiso*/Ueq
Br011.04997 (8)0.87888 (9)0.07431 (3)0.0290 (2)
N10.1275 (7)0.3841 (8)0.1996 (3)0.0263 (8)
H10.1721770.3718790.1393240.032*
N20.1809 (8)0.5011 (4)0.3546 (3)0.0233 (8)
H20.2592940.5635600.3922080.028*
C1−0.0108 (10)0.4214 (5)0.3931 (4)0.0221 (10)
C2−0.0826 (11)0.4377 (6)0.4887 (4)0.0279 (11)
H2A0.0019730.5048330.5296130.033*
C3−0.2794 (10)0.3552 (5)0.5242 (3)0.0287 (11)
H3−0.3283010.3678070.5892120.034*
C4−0.4039 (9)0.2566 (5)0.4677 (3)0.0258 (10)
H4−0.5371170.2019510.4937330.031*
C5−0.3332 (9)0.2358 (5)0.3697 (4)0.0230 (9)
C6−0.4550 (10)0.1351 (5)0.3088 (4)0.0271 (10)
H6−0.5857880.0777750.3332440.032*
C7−0.3850 (12)0.1202 (5)0.2151 (4)0.0302 (11)
H7−0.4697920.0527130.1746030.036*
C8−0.1906 (10)0.2023 (5)0.1773 (4)0.0264 (10)
H8−0.1436730.1894010.1120730.032*
C9−0.0665 (9)0.3020 (5)0.2343 (3)0.0210 (9)
C100.4664 (9)0.5826 (5)0.2126 (3)0.0207 (9)
C110.5168 (11)0.5747 (5)0.1132 (4)0.0287 (11)
H110.4279100.5083110.0724310.034*
C120.6916 (11)0.6605 (6)0.0728 (4)0.0287 (11)
H120.7243650.6527670.0054510.034*
C130.8178 (9)0.7573 (4)0.1313 (3)0.0219 (9)
C140.7790 (10)0.7694 (5)0.2296 (4)0.0270 (10)
H140.8694390.8362210.2694810.032*
C150.6050 (10)0.6817 (5)0.2689 (4)0.0255 (10)
H150.5785740.6890280.3368950.031*
C16−0.1353 (9)0.3201 (5)0.3329 (3)0.0199 (9)
B10.2587 (10)0.4874 (6)0.2567 (4)0.0214 (10)

Source of material

In air, 2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-2,3-dihydro-1H-naphtho[1,8-de][1,3,2]diazaborinine (Bpin-B(dan)) (0.1 mmol, 1.0 eq.), 4-bromoaniline (0.2 mmol, 2.0 eq.), TBAI (tetrabutylammonium iodide 0.01 eq.), NaOAc (0.15 eq.), and BPO (0.01 eq.) were sequentially weighed and added to a screw-capped Schlenk tube containing a magnetic stir bar. The vessel was evacuated and refilled with nitrogen. Tert-butyl nitrite (tBuONO) (0.2 eq.) and MeCN (0.6 mL) were added in turn under N2 atmosphere using syringes through a septum which was temporarily used to replace the screw cap. The reaction mixture was then vigorously stirred at 80 °C for the indicated time. The resulting mixture was filtered through a pad of Celite®, and the filter cake was washed with ethyl acetate (3 mL × 2). The combined filtrate was evaporated under vacuum to dryness and the residue was purified by column chromatography to yield the desired product as colorless solid.

Experimental details

All the H atoms on the benzene rings were placed geometrically and refined without any constraints or restraints.

Comment

Organoboron compounds, which have been broadly used in synthetic chemistry, drug discovery and materials science, have attracted significant attention in recent years [5]. They can react with various functional groups to construct new carbon-carbon bonds or carbon-heteroatom bonds, which can rapidly construct the complex structures of target molecules [6], [7]. When the naphthalene-1,8-diaminato (dan) ligand is used as the masking group, which has two nitrogen atoms that may donate their lone pair electrons to the vacant p-orbital of the boron atoms, the formed naphthalene-1,8-diamino boronamide (Bdan) compounds are robust enough to avoid undesirable organic reactions, such as Suzuki-Miyaura coupling reaction. Moreover, such compounds can be easily transformed to their corresponding boronic acids by simple treatment under aqueous acidic conditions. These features enable their wide applications as modular synthetical building blocks [8], [9], [10], especially in the iterative cross-coupling reactions and the application of di-boron compounds. So here we report the crystal structure of the title compound (cf. figure).

There is one molecule in the symmetric unit (see the figure). All bonds and angles in the crystal structure are within the normal range [11]. In conclusion, we have developed a facile process for the synthesis of 2-(4-bromophenyl)- 2,3-dihydro-1H-naphtho[1,8-de][1,3,2]diazaborinine, C16H12BBrN2.


Corresponding author: Zong-Cheng Miao, Xi’an Key Laboratory of Advanced Photo-electronics Materials and Energy Conversion Device, School of Science, Xijing University, Xi’an, Shaanxi 710123, China, E-mail:

Funding source: National Natural Science Foundation of China

Award Identifier / Grant number: 21901214

Funding source: the Natural Science Basic Research Plan in Shaanxi Province of China

Award Identifier / Grant number: 2020JQ-918

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

  2. Research funding: The National Natural Science Foundation of China (No. 21901214) and the Natural Science Basic Research Plan in Shaanxi Province of China (No. 2020JQ-918).

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

References

1. Bruker. APEX-2, SAINT+, Version 6.02 (Includes XPREP and SADABS); Bruker AXS Inc.: Madison, WI, USA, 2016.Search in Google Scholar

2. Dolomanov, O. V., Bourhis, L. J., Gildea, R. J., Howard, J. A. K., Puschmann, H. OLEX2: a complete structure solution, refinement and analysis program. J. Appl. Crystallogr. 2009, 42, 339–341; https://doi.org/10.1107/s0021889808042726.Search in Google Scholar

3. Sheldrick, G. M. A short history of SHELX. Acta Crystallogr. 2008, A64, 112–122; https://doi.org/10.1107/s0108767307043930.Search in Google Scholar

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

5. Hall, D. J. Boronic acids; Wiley: Weinheim, Germany, 2011.10.1002/9783527639328Search in Google Scholar

6. Lennox, A. J., Lloyd-Jones, G. C. Selection of boron reagents for Suzuki–Miyaura coupling. Chem. Soc. Rev. 2014, 43, 412–413; https://doi.org/10.1039/c3cs60197h.Search in Google Scholar

7. Fyfe, J. W. B., Watson, A. J. B. Recent development in organoboron chemistry: old dogs, new tricks. Chem 2017, 3, 31–55; https://doi.org/10.1016/j.chempr.2017.05.008.Search in Google Scholar

8. Xu, L., Zhang, S., Li, P. Boron-selective reactions as powerful tools for modular synthesis of synthesis of diverse complex molecules. Chem. Soc. Rev. 2015, 44, 8848–8858; https://doi.org/10.1039/c5cs00338e.Search in Google Scholar

9. Takaya, J., Iwasawa, N. Catalytic, direct synthesis of bis(boronate) compounds. ACS Catal. 2012, 2, 1993–2006; https://doi.org/10.1021/cs300320u.Search in Google Scholar

10. Xu, L., Li, P. Differentiated di- and polyboron compounds: synthesis and application in successive Suzuki-Miyaura coupling. Synlett 2014, 25, 1799–1802.10.1055/s-0033-1339114Search in Google Scholar

11. Akerman, M. P., Robinson, R. S., Slabber, C. A. 2-(4–Chlorophenyl) naphtho[1,8-de][1,3,2]diazaborinane. Acta Crystallogr. 2011, E67, o1873; https://doi.org/10.1107/s1600536811025487.Search in Google Scholar

Received: 2020-10-30
Accepted: 2020-11-26
Published Online: 2020-12-10
Published in Print: 2021-03-26

© 2020 Siyi Ding et al., published by De Gruyter, Berlin/Boston

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

Articles in the same Issue

  1. Frontmatter
  2. New Crystal Structures
  3. The crystal structure of 4-hydroxybenzene-1,3-diaminium dichloride, C6H10Cl2N2O
  4. The crystal structure of 3-chloropropylammonium chloride, C3H9Cl2N
  5. The crystal structure of 1-chloro-2-(dimethylamino)ethane hydrochloride, C4H11Cl2N
  6. Crystal structure of N-(2-(trifluoromethyl)phenyl)hexanamide, C13H16F3NO
  7. Redetermination of the crystal structure of para-toluidine, C7H9
  8. The crystal structure of bis(1,3-dihydroxy-2-methylpropan-2-aminium) carbonate, C9H24N2O7
  9. The crystal structure of 4-chloro-1-methylpiperidin-1-ium chloride, C6H13Cl2N
  10. Crystal structure of (Z)-3-(6-bromo-1H-indol-3-yl)-1,3-diphenylprop-2-en-1-one, C23H16BrNO
  11. The crystal structure of ethyl 2-amino-4-(3,5-difluorophenyl)-7,7-dimethyl-5-oxo-5,6,7,8-tetrahydro-4H-chromene-3-carboxylate, C20H21F2NO4
  12. Crystal structure of 6,6'‐((1E,1'E)‐(propane‐1,3‐diylbis(azaneylylidene))bis(methaneylylidene))bis(3‐bromophenol), C34H32Br4N4O4
  13. The crystal structure of (E)-2-(2-((2-picolinoylhydrazono)methyl)phenoxy)acetic acid dihydrate, C15H17N3O6
  14. Crystal structure of (E)-4-bromo-N′-(3-chloro-2-hydroxybenzylidene)benzohydrazide, C14H10BrClN2O2
  15. Crystal structure of N,N′-bis(4-bromosalicylidene) ethylene-1,2-diaminopropan, C34H32Br4N4O4
  16. Crystal structure of 4-bromo-N′-[(3-bromo-2-hydroxyphenyl)methylidene]benzohydrazide methanol solvate, C15H14Br2N2O3
  17. The crystal structure of 1,2-bis(1H-benzo[d]imidazol-2-yl)ethane-1,2-diol — N-(2-aminophenyl)-3-(1H-benzo[d]imidazol-2-yl)-2,3-dihydroxypropanamide (1/1), C32H30N8O5
  18. The crystal structure of para-trifluoromethyl-aniline hemihydrate, C14H14F6N2O
  19. Redetermination of the crystal structure of 2-amino-2-methyl-propane-1,3-diole, C4H11NO2
  20. The crystal structure of methacholine chloride, C8H18ClNO2
  21. Crystal structure of 5,7,7-trimethyl-4,6,7,8-tetrahydrocyclopenta[g]isochromen-1(3H)-one, C15H18O2
  22. Crystal structure of poly[diammine-bis(μ4-4-hydroxypyridine-3-sulfonato-κ5N:O, O′:O′′:O′′)(μ2-pyrazinyl-κ2N:N′)tetrasilver(I)], C7H8Ag2N3O4S
  23. Crystal structure of ethyl (E)-5-(((3′,6′-bis(ethylamino)-3-oxospiro[isoindoline-1,9′-xanthen]-2-yl)imino)methyl)-2,4-dimethyl-1H-pyrrole-3-carboxylate — ethanol (1/1), C38H45N5O5
  24. Crystal structure of 4-bromo-N′-[(3-chloro-2-hydroxyphenyl)methylidene]benzohydrazide, C14H7Br2N2O2
  25. Redetermination of the crystal structure of 3,3,3-triphenylpropanoic acid, C21H18O2 – Deposition of hydrogen atomic coordinates
  26. Structure redetermination of dextromethorphan hydrobromide monohydrate, C18H28BrNO2 – localization of hydrogen atoms
  27. Crystal structure of tris(azido-κ1N)-(N-(2-aminoethyl)-N-methyl-1,3-propanediamine-κ3N,N′,N′′)cobalt(III), C7H19CoN12
  28. Crystal structure of tetraaqua-bis(1H-indazole-6-carboxylate-κN)cadmium (II), C16H18CdN4O8
  29. Crystal structure of dichloride-bis(1-propylimidazole-κ1N)zinc(II), C12H20Cl2N4Zn
  30. Crystal structure of (E)-resveratrol 3-O-β-D-xylopyranoside, C19H22O8
  31. Crystal structure of 3,3′-(1,2-phenylene-bis(methylene))bis(1-vinyl- 1H-imidazol-3-ium) bis(hexafluoro phosphate)(V), C18H20F12N4P2
  32. Crystal structure of diaqua[bis(benzimidazol-2-yl-methyl)amine-κ3N,N′,N″]-phthalato-κ1O-nickel(II)-methanol (1/2), C26H31N5NiO8
  33. Crystal structure of 6,7-difluoro-1-methyl-3-(trifluoromethyl)quinoxalin-2(1H)-one, C10H5F5N2O
  34. Crystal structure of dichlorido-bis(1-hexyl-1H-benzotriazole-k1N)zinc(II), C24H34N6Cl2Zn
  35. The crystal structre of 2-(4-bromophenyl)-2,3-dihydro-1H-naphtho[1,8-de][1,3,2]diazaborinine, C16H12BBrN2
  36. Crystal structure of diethyl 3,9-bis(4-fluorophenyl)-6,12-diphenyl-3,9-diazapentacyclo[6.4.0.02,7.04,11]dodecane-1,5-dicarboxylate, C40H36F2N2O4
  37. Crystal structure of (E)-7-methoxy-2-((5-methoxypyridin-3-yl)methylene)-3,4- dihydronaphthalen-1(2H)-one, C18H17NO3
  38. Crystal structure of (E)-2-chloro-6-(((1,3-dihydroxy-2-(oxidomethyl)propan-2-yl)imino)methyl)phenolate-κ3N,O,O’)manganese(IV), C22H24Cl2MnN2O8
  39. The crystal structure of α-(meta-methoxyphenoxy)-ortho-tolylic acid, C15H14O4
  40. The crystal structure of N-(2-chloroethyl)-N,N-diethylammonium chloride, C6H15Cl2N
  41. The crystal structure of tris(2,3,4,6,7,8,9,10-octahydro-1H-pyrimido[1,2-a]azepin-5-ium) trihydrodecavanadate(V), C27H54N6O28V10
  42. Crystal structure of 1,3-bis(octyl)benzimidazolium perchlorate C23H39ClN2O4
  43. Crystal structure of tetrakis[(Z)-(2-(1-(furan-2-yl)-2-methylpropylidene)-1-phenylhydrazin-1-ido-κ2N,N′)] zirconium(IV), C56H60N8O4Zr
  44. The crystal structure of 2-(naphthalen-2-yloxy)-4-phenyl-6-(prop-2-yn-1-yloxy)-1,3,5-triazine, C22H15N3O2
  45. The crystal structure of trimethylsulfonium tris(trifluoromethylsulfonyl)methanide, C7H9F9O6S4
  46. Crystal structure of 4-bromo-N′-[3,5-dichloro-2-hydroxyphenyl)methylidene]benzohydrazide methanol solvate, C15H13BrCl2N2O3
  47. The crystal structure of 4-(4-bromophenyl)-2-(3-(4-bromophenyl)-5-(4-fluorophenyl)-4,5-dihydro-1H-pyrazol-1-yl)thiazole, C24H16Br2FN3S
  48. The crystal structure of N-(adamantan-1-yl)-piperidine-1-carbothioamide, C16H26N2S
  49. The crystal structure of 1-phenyl-N-(4,5,6,7-tetrabromo-1,3-dioxoisoindolin-2-yl)-5-(thiophen-2-yl)-1H-pyrazole-3-carboxamide-dimethylformamide (1/1) C22H10Br4N4O3S
  50. The crystal structure of benzeneseleninic acid anhydride, C12H10O3Se2
  51. The crystal structure of diphenyalmine hydrochloride antimony trichloride co-crystallizate, C12H12Cl4NSb – Localization of hydrogen atoms
  52. The crystal structure of para-nitrobenzylbromide, C7H6BrNO2 – A second polymorph and correction of 3D coordinates
  53. Crystal structure of catena-poly[(5H-pyrrolo[3,2-b:4,5-b′]dipyridine-κ2N,N′)-(μ4-hexaoxidodivanadato)dizinc(II)],C10H9N3O6V2Zn
  54. Crystal structure of N,N′-(2-hydroxypropane-1,3-diyl)bis(pyridine-2-aldimine)-κ5N,N′,N′′,N′′′,O]-tris(nitrato-κ2O,O′) cerium(III), C15H16CeN7O10
  55. Synthesis and crystal structure of oktakis(dimethylsulphoxide-κ1O)gadolinium(III) [tetrabromido-μ2-bromido-μ2-sulfido-di-μ3-sulfido-μ4-sulfido-tetracopper(I)-tungsten(VI)], C16H48O8S12Br5Cu4GdW
  56. Crystal structure of {tris((1H-benzo[d]imidazol-2- yl)methyl)amine-κ4N,N′,N′′,N′′′}-(succinato-κ2O,O′)nickel(II) – methanol (1/4), C32H41N7NiO8
  57. Crystal structure of catena-poly[trans-tetraaqua(μ2-1,1′-(biphenyl-4,4′-diyl)bis(1H-imidazol)-k2N:N′)cobalt(II)] dinitrate – 1,1′-(biphenyl-4,4′-diyl)bis(1H-imidazol) – water (1/3/2), C72H68CoN18O12
  58. Crystal structure of bis(μ2-2-oxido-2-phenylacetate-κ3O:O,O′)-bis(1-isopropoxy-2-oxo-2-phenylethan-1-olato-κ2O,O′)-bis(propan-2-olato-κ1O)dititanium(IV), C44H52O14Ti2
  59. The crystal structure of 5-carboxy-2-(hydroxymethyl)-1H-imidazol-3-ium-4-carboxylate, C6H8N2O6
  60. The crystal structure of 2,6-dibromo-4-fluoroaniline, C6H4Br2FN
  61. The crystal structure of 4-chloro-N-(2-phenoxyphenyl)benzamide, C19H14ClNO2
  62. The crystal structure of 2-methyl-β-naphthothiazole, C12H9NS
Downloaded on 19.12.2025 from https://www.degruyterbrill.com/document/doi/10.1515/ncrs-2020-0556/html
Scroll to top button