Home Crystal structure of 4-(2,2-difluoroethyl)-2,4-dimethyl-6-(trifluoromethyl)isoquinoline-1,3(2H,4H)-dione, C14H12F5NO2
Article Open Access

Crystal structure of 4-(2,2-difluoroethyl)-2,4-dimethyl-6-(trifluoromethyl)isoquinoline-1,3(2H,4H)-dione, C14H12F5NO2

  • Jianlian Liu ORCID logo EMAIL logo , Chaojun Du and Hong Hao
Published/Copyright: June 21, 2021

Abstract

C14H12F5NO2, monoclinic, P21/c (no. 14), a = 11.8292(10) Å, b = 11.0987(8) Å, c = 11.6480(10) Å, β = 115.282(11)°, V = 1382.8(2) Å3, Z = 4, R gt (F) = 0.0913, wR ref (F2) = 0.1609, T = 293(2) K.

CCDC no.: 2086867

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: Colourless block
Size: 0.25 × 0.22 × 0.20 mm
Wavelength: Mo Kα radiation (0.71073 Å)
μ: 0.15 mm−1
Diffractometer, scan mode: φ and ω
θmax, completeness: 25.0°, >99%
N(hkl)measured, N(hkl)unique, Rint: 7263, 2410, 0.024
Criterion for Iobs, N(hkl)gt: Iobs > 2 σ(Iobs), 1846
N(param)refined: 201
Programs: Bruker [1], SHELX [2]
Table 2:

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

Atom x y z Uiso*/Ueq
C1 0.7199 (4) −0.0363 (4) 0.9590 (4) 0.0473 (11)
H1 0.645125 −0.075047 0.909284 0.057*
C2 0.8152 (4) −0.0997 (4) 1.0529 (4) 0.0468 (11)
C3 0.9265 (4) −0.0426 (5) 1.1295 (4) 0.0522 (12)
H3 0.989931 −0.084825 1.193888 0.063*
C4 0.9419 (4) 0.0762 (5) 1.1093 (4) 0.0507 (12)
H4 1.016480 0.114813 1.159842 0.061*
C5 0.8470 (4) 0.1399 (4) 1.0138 (4) 0.0388 (10)
C6 0.7348 (4) 0.0849 (4) 0.9382 (4) 0.0394 (10)
C7 0.6287 (4) 0.1541 (4) 0.8369 (4) 0.0422 (10)
C8 0.6618 (4) 0.2836 (4) 0.8179 (4) 0.0496 (11)
C9 0.8703 (4) 0.2688 (4) 0.9972 (4) 0.0463 (11)
C10 0.8046 (5) 0.4551 (4) 0.8751 (6) 0.0720 (16)
H10A 0.763655 0.473390 0.786061 0.108*
H10B 0.893186 0.465536 0.904768 0.108*
H10C 0.774410 0.508287 0.920767 0.108*
C11 0.5162 (4) 0.1616 (5) 0.8723 (5) 0.0598 (13)
H11A 0.489418 0.081730 0.880624 0.090*
H11B 0.448499 0.203982 0.806907 0.090*
H11C 0.541109 0.203776 0.951388 0.090*
C12 0.7967 (5) −0.2293 (5) 1.0733 (6) 0.0664 (15)
C13 0.5837 (4) 0.0916 (4) 0.7068 (4) 0.0482 (11)
H13A 0.540940 0.017679 0.708874 0.058*
H13B 0.523669 0.143533 0.642740 0.058*
C14 0.6861 (5) 0.0622 (5) 0.6685 (4) 0.0614 (14)
H14 0.740467 −0.000405 0.724089 0.074*
F1 0.8981 (3) −0.2943 (3) 1.1072 (4) 0.0901 (11)
F2 0.7691 (4) −0.2434 (3) 1.1743 (5) 0.1122 (14)
F3 0.7088 (4) −0.2797 (3) 0.9782 (4) 0.163 (3)
F4 0.6379 (4) 0.0256 (4) 0.5459 (3) 0.1155 (14)
F5 0.7533 (4) 0.1608 (4) 0.6720 (4) 0.1011 (13)
N1 0.7778 (3) 0.3295 (3) 0.8959 (4) 0.0470 (9)
O1 0.5855 (3) 0.3455 (3) 0.7366 (4) 0.0756 (12)
O2 0.9643 (3) 0.3203 (3) 1.0675 (3) 0.0713 (11)

Source of material

The title compound was synthesized according to the literature method [3]. Colorless single crystals suitable for X-ray diffraction analysis were obtained by slow evaporation of its anhydrous tetrahydrofuran solution at room temperature.

Experimental details

All H atoms were placed in calculated positions (C–H = 0.93 Å for aryl, 0.96 Å for methyl, 0.97 Å for methylene and 0.98 Å for methine). The Uiso values were constrained to be 1.5Ueq of the carrier atom for methyl groups and 1.2Ueq for the remaining H atoms.

Comment

As a class of important nitrogen containing heterocycles, isoquinoline-1,3-diones are widely found in biologically active natural products, pharmaceuticals and plant alkaloids due to their high pharmaceutical and biological activities [3], [4], [5], [6]. In recent years, much efforts has been made to explore the incorporation of difluoromethyl group into the skeleton of isoquinoline-1,3-dione to construct CF2H-containing isoquinoline-1,3-diones [3, 711]. In order to study the relationship between the structural and biological properties of CF2H-containing isoquinoline-1,3-diones, we report the molecular and crystal structures of the title compound.

The asymmetric unit of the title compound contains one molecule (see the Figure). The bond lengths and angles are in the normal ranges [12]. The C=O bond lengths of 1.205(5) Å (C8=O1) and 1.206(5) Å (C9=O2) illustrate typical double-bond character. The six-membered ring (C5–C6–C7–C8–N1–C9) is slightly deviated from planarity, the mean deviation from the plane of 0.0301 Å C9 has the largest deviation of 0.0424 Å. The two rings are almost coplanar. Shortest distance (2.6 A) is larger than sum of vdW radii.


Corresponding author: Jianlian Liu, School of Chemical Engineering, Northwest University, 710069, Xi’an, Shaanxi, People’s Republic of China; and School of Biological and Chemical Engineering, Nanyang Institute of Technology, 473004, Nanyang, Henan, People’s Republic of China, E-mail:

Funding source: Education Department of Henan Province

Award Identifier / Grant number: 20B530004

Award Identifier / Grant number: JCQY004

Funding source: Nanyang Key Laboratory of Catalytic Functional Materials

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

  2. Research funding: This work was financial supported by the Education Department of Henan Province (20B530004), Nanyang Science and Technology Bureau (JCQY004), and Nanyang Key Laboratory of Catalytic Functional Materials.

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

References

1. Bruker. APEX2, SAINT and SADABS; Bruker AXS Inc.: Madison, Wisconsin, USA, 2008.Search in Google Scholar

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

3. Zou, G., Wang, X. Visible-light induced di- and trifluoromethylation of N-benzamides with fluorinated sulfones for the synthesis of CF2H/CF3-containing isoquinolinediones. Org. Biomol. Chem. 2017, 15, 8748–8754; https://doi.org/10.1039/c7ob02226c.Search in Google Scholar PubMed

4. Hua, M.-Q., Mou, F.-Y., Wang, N.-H., Chen, Y., Xiong, H.-Y., Huang, Y., Lei, C.-L., Zhang, Q. Visible-light-induced photocatalytic difluoroalkylation of 3-substituted benzo[d]isoxazoles via direct and regioselective C–H functionalization. Tetrahedron Lett. 2018, 59, 4449–4453; https://doi.org/10.1016/j.tetlet.2018.10.007.Search in Google Scholar

5. Vernekar, S. K. V., Liu, Z., Nagy, E., Miller, L., Kirby, K. A., Wilson, D. J., Kankanala, J., Sarafianos, S. G., Parniak, M. A., Wang, Z. Design, synthesis, biochemical, and antiviral evaluations of C6 benzyl and C6 biarylmethyl substituted 2-hydroxylisoquinoline-1,3-diones: dual inhibition against HIV reverse transcriptase-associated RNase H and polymerase with antiviral activities. J. Med. Chem. 2015, 58, 651–664; https://doi.org/10.1021/jm501132s.Search in Google Scholar PubMed PubMed Central

6. Wang, S., Dai, P., Yan, C., Wang, Y., Shao, J., Wu, Y., Deng, C., Zhang, W. Metal- free, visible-light-induced radical trifluoromethylation/cyclization of N-benzamides with CF3SO2Na to synthesize CF3-containing isoquinoline- 1,3-diones. ChemistrySelect 2019, 4, 10329–10333; https://doi.org/10.1002/slct.201902545.Search in Google Scholar

7. Zeng, W., Yan, W., Paeth, M., Zacate, S. B., Hong, P.-H., Wang, Y., Yang, D., Yang, K., Yan, T., Song, C., Cao, Z., Cheng, M.-J., Liu, W. Copper-catalyzed, chloroamide-directed benzylic C–H difluoromethylation. J. Am. Chem. Soc. 2019, 141, 11398–11403; https://doi.org/10.1021/jacs.9b05363.Search in Google Scholar PubMed

8. Zhu, M., You, Q., Li, R. Synthesis of CF2H-containing oxindoles via photoredox-catalyzed radical difluoromethylation and cyclization of N-arylacrylamides. J. Fluor. Chem. 2019, 228, 109391; https://doi.org/10.1016/j.jfluchem.2019.109391.Search in Google Scholar

9. Hu, W.-Q., Xu, X.-H., Qing, F.-L. Visible light induced hydrodifluoromethylation of alkenes derived from oxindoles with (difluoromethyl)triphenylphosphonium bromide. J. Fluor. Chem. 2018, 208, 73–79; https://doi.org/10.1016/j.jfluchem.2018.01.013.Search in Google Scholar

10. Schmitt, E., Rugeri, B., Panossian, A., Vors, J.-P., Pazenok, S., Leroux, F. R. In situ generated fluorinated iminium salts for difluoromethylation and difluoroacetylation. Org. Lett. 2015, 17, 4510–4513; https://doi.org/10.1021/acs.orglett.5b02184.Search in Google Scholar PubMed

11. Okusu, S., Tokunaga, E., Shibata, N. Difluoromethylation of terminal alkynes by fluoroform. Org. Lett. 2015, 17, 3802–3805; https://doi.org/10.1021/acs.orglett.5b01778.Search in Google Scholar PubMed

12. Li, H., Han, X., Cao, B. Crystal structure of 4-(2,2-difluoroethyl)-2,4,6- trimethylisoquinoline-1,3(2H,4H)-dione, C14H15F2NO2. Z. Kristallogr. NCS 2021, 236, 499–501; https://doi.org/10.1515/ncrs-2020-0635.Search in Google Scholar

Received: 2021-05-10
Accepted: 2021-05-31
Published Online: 2021-06-21
Published in Print: 2021-09-27

© 2021 Jianlian Liu 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. Crystal structure of [aqua-(4-iodopyridine-2,6-dicarboxylato-κ3 O,N,O′)-(1,10-phenanothroline-κ2 N,N′)copper(II)] dihydrate, C19H16O7N3CuI
  4. The crystal structure of tetrakis(1-isopropyl-1H-imidazolium) octamolybdate, C24H44Mo8N8O26
  5. Crystal structure of catena-poly[bis(µ2-3,5-bis(1-imidazolyl)pyridine-κ2 N:N′)-(µ2-3-nitrophthalato-k3 O,O′:O″)cadmium(II)] dihydrate, C30H25N11O8Cd
  6. The crystal structure of diaqua-bis(2-(3-(1H-pyrazol-4-yl)-1H-1,2,4-triazol-5-yl)pyridine-κ2 N:N′)-bis(3,5-dicarboxybenzoato-κ1 O)cobalt(II), C38H30CoN12O14
  7. Crystal structure of the nickel(II) complex aqua-(2,6-di(pyrazin-2-yl)-4,4′-bipyridine-κ3 N,N′,N′′)-(phthalato-κ2 O,O′)nickel(II) tetrahydrate, C26H26N6O9Ni
  8. The crystal structure of 1-[5-(2-fluorophenyl)-1-(pyridine-3-sulfonyl)-1H-pyrrol-3-yl]-N-methylmethanaminium 3-carboxyprop-2-enoate, C21H20FN3O6S
  9. The crystal structure of 1,2-bis(4-pyridyl)ethane - 4,4-dihydroxydiphenylmethane (1/1), C25H21N2O2
  10. Crystal structure of bis(2-((E)-5-chloro-2-hydroxybenzylidene)hydrazineyl)methaniminium trifluoroacetate dihydrate, C34H36Cl4N10O12
  11. Crystal structure of 1-cyclopropyl-7-ethoxy-6,8-difluoro-4-oxo-1,4-dihydro-quinoline-3-carboxylic acid, C15H13F2NO4
  12. Crystal structure of methyl 3-(1H-naphtho[1,8-de][1,3,2]diazaborinin-2(3H)-yl)benzoate, C18H15BN2O2
  13. Crystal structure of (E)-N′-(2-chloro-6-hydroxybenzylidene)-2-hydroxybenzohydrazide, C14H11ClN2O3
  14. Crystal structure of Al-rich fluorophlogopite, K1.0(Mg2.8Al0.2)(Si2.8Al1.2)O10F2
  15. The crystal structure of 4,5-diiodo-1,3-dimesityl-1H-1,2,3-triazol-3-ium hexafluoridoantimonate(V), C20H22F6I2N3Sb
  16. Crystal structure of tris(3-iodopyridin-1-ium) catena-poly[(hexachlorido-κ1 Cl)-(μ2-trichlorido-κ2 Cl:Cl)diantimony(III)], C15H15Cl9I3N3Sb2
  17. Crystal structure of methyl 2-(1H-naphtho[1,8-de][1.3.2]diazaborinin-2(3H-yl)benzoate C18H15BN2O2
  18. The crystal structure of 1,8-bis(4-methoxybenzoyl)naphthalene-2,7-diyl dibenzoate, C40H28O8
  19. Crystal structure of 2-bromo-1,3,6,8-tetramethylBOPHY (BOPHY = bis(difluoroboron)-1,2-bis((1H-pyrrol-2-yl)methylene)hydrazine), C14H15B2BrF4N4
  20. The crystal structure of (E)-3-chloro-2-(2-(2-fluorobenzylidene)hydrazinyl)pyridine, C12H9ClFN3
  21. Crystal structure of bis(µ2- 4-iodopyridine-2,6-dicarboxylato-κ3O:N:O′)-bis(4-iodopyridine-2,6-dicarboxylato-κ3O:N:O′)-bis(µ2-1-(4-pyridyl)piperazine-κ2N:N′)-hexa-aqua-tetra-copper(II), C46H46Cu4I4N10O22
  22. Crystal structure of poly[diaqua-(μ2-2,5-dihydroxyterephthalato-κ2O:O′)(μ2-bis(4-pyridylformyl)piperazine-κ2N:N′)cadmium(II)] dihydrate, C24H28CdN4O12
  23. Crystal structure of poly[aqua-(μ2-1,3-di(1H-imidazol-1-yl)propane-κ2N:N′)-(μ3-2,3,5,6-tetrafluoroterephthalato-κ3O:O′:O′′)cadmium(II)], C17H14N4O5F4Cd
  24. Crystal structure of 6-(quinolin-8-yl)benzo[a]phenanthridin-5(6H)-one, C26H16N2O
  25. The crystal structure of aqua-bis(6-chloropicolinato-κ2N,O)copper(II), C12H8Cl2N2O5Cu
  26. Crystal structure of catena-poly[diaqua-bis(μ2-4,4′-bipyridyl-κ2N:N′) disilver(I)] 4-oxidopyridine-3-sulfonate trihydrate, C25H29Ag2N5O9S
  27. The crystal structure of 4-(3-bromophenyl)pyrimidin-2-amine, C10H8BrN3
  28. Crystal structure of 6-oxo-4-phenyl-1-propyl-1,6-dihydropyridine-3-carbonitrile, C15H14N2O
  29. Crystal structure of 4-(2,2-difluoroethyl)-2,4-dimethyl-6-(trifluoromethyl)isoquinoline-1,3(2H,4H)-dione, C14H12F5NO2
  30. Crystal structure of dibromido-(1-methyl-1H-imidazole-κ1N)-(3-(3-methyl-1H-imidazol-3-ium-1-yl)propanoato-κ1O)zinc(II), C11H16Br2N4O2Zn
  31. The crystal structure of 1,1′-(((2 (dimethylamino)ethyl)azanediyl)bis(methylene)) bis(naphthalen-2-olato-κ4 N,N′,O,O′)-(pyridine-2,6-dicarboxylato-N,O,O′)- titanium(IV) ─ dichloromethane (2/1), C33H29N3O6Ti
  32. The layered crystal structure of bis(theophyllinium) hexachloridostannate (IV), C14H18N8O8SnCl6
  33. The crystal structre of 3-(1-ethenyl-1H-imidazol-3-ium-3-yl)propane-1-sulfonate, C8H12N2O3S
  34. Synthesis and crystal structure of di-tert-butyl 1″-acetyl-2,2″,9′-trioxo-4a′,9a′-dihydro-1′H,3′H,9′H-dispiro[indoline-3,2′-xanthene-4′,3″-indoline]-1,3′-dicarboxylate, C39H38N2O9
  35. The crystal structure of 4-chloro-2-(quinolin-8-yl)isoindoline-1,3-dione, C17H9ClN2O2
  36. The crystal structure of 1-fluoro-4-(p-tolylethynyl)benzene, C15H11F
  37. The crystal structure of bis[4-bromo-2-(1H-pyrazol-3-yl) phenolato-κ2N,O] copper(II), C18H12Br2CuN4O2
  38. The crystal structure of poly[(μ 3-imidazolato-κ 3 N:N:N′)(tetrahydrofuran- κ 1 O)lithium(I)], C7H11LiN2O
  39. Crystal structure of N′,N′′′-((1E,1′E)-(propane-2,2-diylbis(1H-pyrrole-5,2diyl))bis(methaneylylidene))di(nicotinohydrazide) pentahydrate, C25H24N8O2·5H2O
  40. Crystal structure of 3-(2-ethoxy-2-oxoethyl)-1-ethyl-1H-imidazol-3-ium hexafluoridophos-phate(V), C9H15F6N2O2P
  41. Crystal structure of (1,10-phenanthroline-κ2N,N′)-bis(3-thiophenecarboxylato-κ2O,O′)copper(II), C22H14N2O4S2Cu
  42. The crystal structure of 2-amino-3-carboxypyridin-1-ium iodide hemihydrate, C6H8IN2O2.5
  43. Crystal structure of (E)-7-methoxy-2-((6-methoxypyridin-2-yl)methylene)-tetralone, C18H17NO3
  44. The crystal structure of [μ-hydroxido-bis[(5,5′-dimethyl-2,2′-bipyridine-κ2N,N′)-tricarbonylrhenium(I)] bromide hemihydrate, C30H26N4O9Re2Br
  45. The crystal structure of 2,5-bis(3,5-dimethylphenyl)thiazolo[5,4-d]thiazole, C20H18N2S2
  46. The crystal structure of 5-benzoyl-1-[(E)-(4-fluorobenzylidene)amino]-4-phenylpyrimidin-2(1H)-one, C24H16FN3O2
  47. Crystal structure of monocarbonyl(N-nitroso-N-oxido-phenylamine-κ 2 O,O′)(tricyclohexylphosphine-κP)rhodium(I), C25H39N2O3PRh
  48. Crystal structure of poly[bis[μ3-1,3,5-tris[(1H-imidazol-1-yl)methyl]benzene-κ3N:N′:N″]nickel(II)] hexafluorosilicate, C36H36N12NiSiF6
  49. The crystal structure of 13-(pyrazole-1-yl-4-carbonitrile)-matrine, C19H25N5O
  50. Crystal structure of 3,5-bis((E)-4-methoxy-2-(trifluoromethyl)benzylidene)-1-methylpiperidin-4-one, C24H21F6NO3
  51. The crystal structure of N,N′-(Disulfanediyldi-2,1-phenylene)di(6′-methylpyridine)-2-carboxamide, C26H22N4O2S2
  52. Crystal structure of (E)-7-fluoro-2-(4-methoxy-2-(trifluoromethyl)benzylidene)-3,4-dihydronaphthalen-1(2H)-one, C19H14F4O2
  53. Crystal structure of ethyl 1-(4-fluorophenyl)-4-phenyl-1H-pyrrole-3-carboxylate, C19H16FNO2
  54. The crystal structure of cis-diaqua-bis (N-butyl-N-(pyridin-2-yl)pyridin-2-amine-κ2N,N′)cobalt(II)] dichloride trihydrate, C28H44Cl2N6O5Co
  55. Crystal structure of (E)-7-methoxy-2-((6-methoxypyridin-3-yl)methylene)-3,4-dihydronaphthalen-1(2H)-one, C18H17NO3
  56. Crystal structure of (E)-2-((3-fluoropyridin-4-yl)methylene)-7-methoxy-3,4-dihydronaphthalen-1(2H)-one, C17H14FNO2
  57. The crystal structure of 6-bromohexanoic acid, C6H11BrO2
  58. The crystal structure of 4-chloro-thiophenol, C6H5ClS
  59. The crystal structure of 4-bromobenzyl chloride, C7H6BrCl
  60. The crystal structure of di-tert-butyl dicarbonate, C10H18O5
  61. The crystal structure of (2-(4-chlorophenyl)-5-methyl-1,3-dioxan-5-yl)methanol, C12H15ClO3
  62. The crystal structure of the co-crystal: 2-hydroxybenzoic acid – N′-(butan-2-ylidene)pyridine-4-carbohydrazide, C10H13N3O·C7H6O3
  63. Crystal structure and anti-inflammatory activity of (E)-7-fluoro-2-((5-methoxypyridin-3-yl)methylene)-3,4-dihydronaphthalen-1(2H)-one, C17H14FNO2
  64. Crystal structure of (E)-7-fluoro-2-((6-methoxypyridin-3-yl)methylene)-3,4-dihydronaphthalen-1(2H)-one, C17H14FNO2
  65. Crystal structure of 1,1′-(butane-1,4-diyl)bis(3-propyl-1H-imidazol-3-ium) bis(hexafluoridophosphate), C32H56F24N8P4
  66. The crystal structure of dichlorido-bis(3-methyl-3-imidazolium-1-ylpropionato-κ2)-cadmium(II), C14H20CdCl2N4O4
  67. Crystal structure of 1-(2-cyanobenzyl)-3-cyano-4-phenyl-4-(2-cyanobenzyl)-1,4-dihydropyridine monohydrate, C56H42N8O
  68. The crystal structure of 3-(carboxymethyl)-1-ethenyl-1H-imidazol-3-ium chloride, C7H9N2O2Cl
  69. The crystal structure of adamantylmethoxydiphenylsilane, C23H28OSi
  70. Redetermination of the crystal structure of (2E,4Z,13E,15Z)-3,5,14,16-tetramethyl-2,6,13,17-tetraazatricyclo[16.4.0.07,12]docosa-1(22),2,4,7,9,11,13,15,18,20-decaene, C22H24N4
  71. Crystal structure of (E)-7-hydroxy-2-((6-methoxypyridin-2-yl)methylene)-3,4-dihydronaphthalen-1(2H)-one, C17H15NO3
  72. Crystal structure of catena-poly[diaqua-bis(μ2-1,3-di(1H-imidazol-1-yl)propane-κ2 N:N′)cobalt(II)] dinitrate, C18H28N10O8Co
Downloaded on 22.9.2025 from https://www.degruyterbrill.com/document/doi/10.1515/ncrs-2021-0179/html
Scroll to top button