Home Crystal structure of the co-crystalline adduct 4-((4,4-dimethyl-2,6-dioxocyclohexylidene)methylamino)-N-(4,6-dimethylpyrimidin-2-yl)benzenesulfonamide - acetic acid (1/1), C21H24N4O4S ⋅ C2H4O2
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Crystal structure of the co-crystalline adduct 4-((4,4-dimethyl-2,6-dioxocyclohexylidene)methylamino)-N-(4,6-dimethylpyrimidin-2-yl)benzenesulfonamide - acetic acid (1/1), C21H24N4O4S ⋅ C2H4O2

  • Mostafa M. Ghorab , Mansour S. Alsaid , Mohmmed S. Al-Dosari and Hazem A. Ghabbour EMAIL logo
Published/Copyright: March 28, 2017

Abstract

C23H28N4O6S, triclinic, P1̅ (no. 2), a = 7.3612(3) Å, b = 9.2370(4) Å, c = 19.2940(8) Å, α = 94.657(2)°, β = 96.902(2)°, γ = 113.010(2)°, V = 1186.92(9) Å3, Z = 2, Rgt(F) = 0.0617, wRref(F2) = 0.1575, T = 100 K.

CCDC no.:: 1468856

The asymmetric unit of the title crystal structure is shown in the figure. Tables 1 and 2 contain details on crystal structure and measurement conditions and a list of the atoms including atomic coordinates and displacement parameters.

Table 1

Data collection and handling.

Crystal:Yellow plate
Size:0.42 × 0.34 × 0.09 mm
Wavelength:Mo Kα radiation (0.71073 Å)
μ:1.8 cm−1
Diffractometer, scan mode:Bruker APEX-II, φ and ω
2θmax, completeness:67.6°, >99%
N(hkl)measured, N(hkl)unique, Rint:30303, 9535, 0.078
Criterion for Iobs, N(hkl)gt:Iobs > 2 σ(Iobs), 5797
N(param)refined:324
Programs:Bruker programs [14], SHELX [15]
Table 2

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

AtomxyzUiso*/Ueq
S10.66513(6)0.30675(4)0.16721(2)0.01900(10)
O10.12768(17)0.76957(15)0.40635(6)0.0273(3)
O20.5969(2)0.7260(2)0.58195(7)0.0447(4)
O30.49752(17)0.15939(13)0.14076(6)0.0266(3)
O40.84453(17)0.30033(13)0.20197(6)0.0243(3)
N10.3789(2)0.64607(17)0.37223(7)0.0207(3)
N20.70479(19)0.39605(15)0.09792(7)0.0188(3)
N30.95744(19)0.62917(15)0.16186(6)0.0182(3)
N40.86470(19)0.59954(15)0.03763(6)0.0184(3)
C10.2120(2)0.79622(18)0.46866(8)0.0198(3)
C20.1479(2)0.88177(19)0.52441(9)0.0228(3)
H2A0.00430.85800.51040.027*
H2B0.22360.99760.52610.027*
C30.1795(2)0.83781(18)0.59858(8)0.0199(3)
C40.3972(2)0.8591(2)0.61719(8)0.0232(3)
H4A0.48430.97400.62310.028*
H4B0.41450.82150.66310.028*
C50.4672(2)0.7734(2)0.56381(8)0.0246(4)
C60.3750(2)0.75059(19)0.48973(8)0.0192(3)
C70.1335(3)0.9450(2)0.65153(10)0.0336(4)
H7A0.14960.91440.69860.050*
H7B−0.00440.93390.63800.050*
H7C0.22581.05570.65210.050*
C80.0369(2)0.66561(19)0.59959(9)0.0228(3)
H8A0.05410.63800.64720.034*
H8B0.06660.59510.56630.034*
H8C−0.10150.65340.58590.034*
C90.4478(2)0.67876(19)0.44074(8)0.0214(3)
H9A0.55490.65100.45750.026*
C100.4532(2)0.57283(18)0.32229(8)0.0188(3)
C110.3207(2)0.4769(2)0.26299(8)0.0221(3)
H11A0.18570.46580.25550.027*
C120.3871(2)0.39800(19)0.21521(8)0.0226(3)
H12A0.29750.33110.17490.027*
C130.5858(2)0.41656(17)0.22612(8)0.0175(3)
C140.7192(2)0.51729(17)0.28377(8)0.0177(3)
H14A0.85570.53230.28990.021*
C150.6535(2)0.59579(18)0.33219(8)0.0187(3)
H15A0.74400.66480.37190.022*
C160.8480(2)0.54532(17)0.10072(8)0.0162(3)
C171.0896(2)0.77641(18)0.16003(8)0.0192(3)
C181.1150(2)0.84027(18)0.09703(8)0.0206(3)
H18A1.21080.94500.09670.025*
C190.9981(2)0.74819(18)0.03536(8)0.0183(3)
C201.2065(3)0.8695(2)0.22955(9)0.0306(4)
H20A1.11480.86310.26320.046*
H20B1.27960.98080.22370.046*
H20C1.30170.82560.24740.046*
C211.0058(3)0.8047(2)−0.03518(8)0.0245(3)
H21A1.00370.7212−0.07040.037*
H21B1.12900.9001−0.03280.037*
H21C0.88970.8297−0.04850.037*
O50.4491(2)0.22350(18)−0.02319(7)0.0434(4)
O60.6369(2)0.40658(15)−0.08258(7)0.0342(3)
C220.3767(3)0.1725(2)−0.14762(9)0.0293(4)
H22A0.39360.2371−0.18610.044*
H22B0.23480.1238−0.14330.044*
H22C0.42470.0891−0.15760.044*
C230.4940(2)0.2753(2)−0.08033(8)0.0225(3)
H1N10.280(4)0.672(3)0.3584(12)0.049(7)*
H1N20.611(4)0.335(4)0.0535(10)0.113(12)*
H1O60.725(5)0.483(4)−0.0403(13)0.146(16)*

Source of material

2-((Dimethylamino)methylene)-5,5-dimethylcyclohexane-1,3-dione (1.95 g, 0.01 mol) and 4-amino-N-(4,6-dimethylpyrimi-din-2-yl)benzenesulfonamide (2.78 g, 0.01 mol) was added into absolute ethanol (20 mL) containing glacial acetic acid (5 mL). The reaction mixture was refluxed for 12 h, and the solid obtained was recrystallized from ethanol to give the title compound. Yield 86%, m.p. 248.9 °C. IR: υmax/cm−1 3236, 3186 (NH), 3063 (arom.), 2956, 2870 (aliph.), 1654 (2CO), 1618 (CN), 1363, 1168 (SO2). 1H-NMR δ: 1.0 [s, 6H, 2CH3 cyclo], 2.2 [s, 4H, 2CH2 cyclo], 2.3, 2.4 [2s, 6H, 2CH3 pyrimidine], 6.7 [s, 1H, CH pyrimidine], 7.6–7.9 [m, 4H, Ar-H + SO2NH], 8.5 [s, 1H, CH], 12.6 [s, 1H. NH]. 13C-NMR δ: 21.4(2), 28.4(2), 31.0, 51.2(2), 109.7, 113.6(2), 118.3, 130.3(3), 142.2, 149.7, 156.4(2), 172.4, 195.6, 199.8. Anal. Calcd. for C21H24N4O4S (428.15): C, 58.86; H, 5.65; N, 13.07. Found: C, 58.55; H, 5.33; N, 13.29.

Experimental details

Carbon-bound hydrogen atoms were placed in calculated positions and were included in the refinement in the riding model approximation, with Uiso(H) set to 1.2Ueq(C) and 1.5 Ueq(C) for methyl groups. The nitrogen-bound were located on a difference Fourier map and refined freely.

Discussion

Attributable to the massive applicability of sulfonamides, it is sought-after to assimilate widespread and prosperous approaches for their manufacture. Sulfonamides were the principally remedies fundamentally engaged and progressively castoff for petition and chemotherapeutic vehicles intimidating to an variety of maladies [1]. More than thirty drugs obligating this functionality are in assessable apply, entering antiseptic [2, 3] , and extra biological activities [4], [5], [6], [7], [8]. Unique vigorous sulfonamide derivatives shabby for occasion carbonic anhydrase inhibitors of profitable enormousness [9]. A squat retro gaining, sulfonamides are itemized as an anticancer surrogates [10].

Additionally, some pyrimidine derivatives exhibited a wide range of biological activity [11]. In obstinacy of our prodigy in the synthesis of capable heterocyclic compounds [12], [13], we evidence here the newly synthesized 4-((4, 4-dimethyl-2, 6-dioxocyclohexylidine) methylamino)-N-(4, 6-dimethylpyrimidin-2-yl)benzenesulfonamide.

The crystal structure of title compound contains one molecule of 4-((4,4-dimethyl-2,6-dioxocyclohexylidine)methylamino)-N-(4,6-dimethylpyrimidin-2-yl)benzenesulfonamide with one molecule of acetic acid in the asymmetric unit. In the title structure the C6—C9 bond length is 1.385(2) Å and this is typical for carbon-carbon double bond. Similarily, all other geometric parameters of the title molecule are in the expected ranges.

In the crystal structure the organic title molecule is connected with the acetic acid molecule by two classical hydrogen bonds between N2—H1N2⋯O5 and O6—H1O6⋯N4 and there is one intramolecular hydrogen bond between N1—H1N1⋯O1 (cf. the figure). Additionally, there are at least three non-classical intermolecular hydrogen bonds C11—H11A⋯O4i, C15—H15A⋯O1ii and C18—H18A⋯O3iii (i: −1+x, y, z; ii: 1+x, y, z; iii: 1+x, 1+y, z).

Acknowledgement

The authors would like to extend their sincere appreciation to the Deanship of Scientific Research at King Saud University for funding of this research through the Research Group Project no. RGP-302.

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Received: 2016-10-4
Accepted: 2017-3-5
Published Online: 2017-3-28
Published in Print: 2017-5-24

©2017 Mostafa M. Ghorab et al., published by De Gruyter, Berlin/Boston

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

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  60. Crystal structure of 4-bromo-2-(1H-pyrazol-3-yl)phenol, C9H7BrN2O
  61. Crystal structure of 1,2,3,4,5-pentamethyl-1,3-cyclopentadiene, C10H16
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