Home Physical Sciences The crystal structure of 13-ethoxycarbonyl-9-methyl-4-chlor-11-thioxo-8-oxa-10,12-diazatricyclo[7.3.1.02,7]trideca-2,4,6-triene, C14H15ClN2O3S
Article Open Access

The crystal structure of 13-ethoxycarbonyl-9-methyl-4-chlor-11-thioxo-8-oxa-10,12-diazatricyclo[7.3.1.02,7]trideca-2,4,6-triene, C14H15ClN2O3S

  • Chuansheng Cui EMAIL logo , Haichao Zhang and Xiaoyu Gu
Published/Copyright: September 9, 2019

Abstract

C14H15ClN2O3S, monoclinic C2/c (no. 15), a = 17.0104(15) Å, b = 8.6786(7) Å, c = 20.4283(18) Å, β = 93.977(1)°, V = 3008.5(4) Å3, Z = 8, Rgt(F) = 0.0363, wRref(F2) = 0.0937, T = 298(2) K.

CCDC no.: 1941283

The crystal 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 block
Size:0.22 × 0.20 × 0.19 mm
Wavelength:Mo Kα radiation (0.71073 Å)
μ:0.4 mm−1
Diffractometer, scan mode:Bruker SMART, φ and ω-scans
θmax, completeness:25°, >99%
N(hkl)measured, N(hkl)unique, Rint:7314, 2663, 0.036
Criterion for Iobs, N(hkl)gt:Iobs > 2 σ(Iobs), 1995
N(param)refined:193
Programs:Bruker programs [1], SHELX [2]
Table 2:

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

AtomxyzUiso*/Ueq
Cl10.11588(4)−0.35761(8)0.71458(3)0.0641(2)
N10.06821(9)0.0225(2)0.94534(8)0.0330(4)
H10.055255−0.0578860.9667460.040*
N20.14020(10)0.2420(2)0.93765(9)0.0396(5)
H2’0.1818800.2923620.9508010.047*
O10.13201(9)0.26888(18)0.82184(7)0.0418(4)
O2−0.03187(10)0.2768(2)0.98376(8)0.0561(5)
O3−0.10555(9)0.3461(2)0.89435(8)0.0596(5)
S10.17459(4)0.07202(8)1.04340(3)0.0536(2)
C10.12131(13)−0.1732(3)0.74840(11)0.0419(6)
C20.07630(12)−0.1373(3)0.79964(10)0.0356(5)
H20.044550−0.2122300.8168480.043*
C30.07804(11)0.0105(2)0.82581(9)0.0316(5)
C40.12640(12)0.1198(3)0.79940(10)0.0353(5)
C50.17109(13)0.0824(3)0.74739(11)0.0448(6)
H50.2028400.1568320.7297900.054*
C60.16866(14)−0.0640(3)0.72175(11)0.0489(6)
H60.198567−0.0891960.6868570.059*
C70.02769(11)0.0543(2)0.88126(10)0.0315(5)
H7−0.022422−0.0016630.8768930.038*
C80.01257(12)0.2277(2)0.87586(10)0.0342(5)
H8−0.0116390.2487340.8318320.041*
C90.09414(12)0.3037(2)0.88131(10)0.0353(5)
C100.09252(16)0.4771(3)0.88448(13)0.0526(6)
H10A0.1453750.5161580.8851580.079*
H10B0.0688250.5089410.9235870.079*
H10C0.0623370.5167070.8467330.079*
C110.12453(12)0.1145(3)0.97135(10)0.0341(5)
C12−0.04272(13)0.2859(3)0.92506(11)0.0376(5)
C13−0.16934(15)0.3969(4)0.93384(14)0.0754(10)
H13A−0.1636200.3506880.9771380.091*
H13B−0.1682110.5081040.9387250.091*
C14−0.24317(16)0.3486(4)0.89970(16)0.0806(10)
H14A−0.2485000.3962110.8572100.121*
H14B−0.2863850.3790700.9246330.121*
H14C−0.2433370.2385840.8947420.121*

Source of materials

In a 50 mL round-bottom flask, 5-chloro-2-hydroxybenzaldehyde (3 mol), thiourea (5mmol) and ethyl acetoacetate (3 mol) were mixed in 20 mL of ethanol. H3PW12O40 (0.01 mmol) was added successively. The mixture was heated to 80 °C for 5 h. After completion, ice water (50 mL) was added, and the obtained crude product was recrystallized from EtOH. Crystals of the title compound were achieved. Yield: 78%, and elemental analysis: calc. for C14H15ClN2 O3S: C 51.46, H 4.63, N 8.57; found: C 51.58, H 4.58, N 8.48. The elemental analyses were performed with PERKIN ELMER MODEL 2400 SERIES II.

Experimental details

Hydrogen atoms were assigned with common isotropic displacement factors Uiso(H) = 1.5 times Ueq (C, methyl) and Uiso(H) = 1.2 times Ueq (C, benzen ring, methyne, methylene and N atoms). All the H atoms were refined as riding on their parent atom.

Comment

As we know, heterocyclic compounds containing N atoms exhibit important biological activities, pharmaceutical properties and the function of constructing metal complexes, etc. [3], [4], [5], [6], [7]. Among the N-heterocyclic compounds, 3,4-dihydropyrimidin-2-ones, 3,4-dihydropyrimidin-2-thiones compounds have been widely used in the field of antiviral [8], antitumor [9] and antibacterial activities [10]. Thus, synthesis and characterization of 3,4-dihydropyrimidin-2-ones or 2-thiones compounds not only develops our understanding of their structure but also can study their use. Up to now, a large number of 3,4-dihydropyrimidin-2-ones or 2-thiones compounds have been reported in the literature, and some crystal structures of these compounds have been characterized [11], [12]. Herein, the crystal structure of 13-ethoxycarbonyl-9-methyl-4-chloro-11-thioxo-8-oxa-10,12-diazatricyclo[7.3.1.02,7]trideca-2,4,6-triene is reported.

The molecular structure of the title 3,4-dihydropyrimidin-2-thione compound is shown in the figure. The structure consists of one chloro-substituted benzo moiety, one tetrahydropyrimidine-2-thione unit and one tetrahydropyran ring, and the bond lengths and bond angles in the title structure are close to reported values [12]. The tetrahydropyrimidine-2-thione unit and the tetrahydropyran ring in the title compound adopt a nearly ideal sofa conformation, and the dihedral angles of the plane C7/C8/C9 between the plane C3/C4/O1 and the plane N1/C11/N2 is 55.77(2)° and 54.24(2)°, respectively, which are similar with those reported for a benzoxadiazocine [13]. Meanwhile, the dihedral angle of the ring C1/C2/C3/C4/C5/C6 and the plane C7/C9/O1 is 9.31 (2)°. The chloro atom is located in phenyl ring plane (torsion angles Cl1—C1—C6—C5 178.21(18)°). Additionally, the packing of neighboring molecules is supported by weak intermolecular C—H⋯S, N—H⋯S and N—H⋯O hydrogen bonds.

Funding source: Research on Experimental Technology of Liaocheng University

Award Identifier / Grant number: 38622170214

Funding statement: We gratefully acknowledge support by the Research on Experimental Technology of Liaocheng University (38622170214).

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Received: 2019-07-01
Accepted: 2019-08-09
Published Online: 2019-09-09
Published in Print: 2019-12-18

©2019 Chuansheng Cui et al., published by De Gruyter, Berlin/Boston

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

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  77. Crystal structure of 3-iodophthalic acid, C8H5IO4
  78. The crystal structure of tert-butyl (tert-butoxy(oxo)methyl)(5-bromo-2-fluorophenyl)carbamate, C16H21BrFNO4
  79. The crystal structure of bis(μ2-5,7-dichloroquinolin-8-olato-κ3N,O:O)-tetrakis(5,7-dichloroquinolin-8-olato-κ2N,O)bis(methanol-κ1O)dieuropium(III) — toluene (1/1), C63H39Cl12Eu2N6O8
  80. Crystal structure of dichlorido-(N′-(1-(3-ethylpyrazin-2-yl)ethylidene)-4-methoxybenzohydrazide-κ3N,N′,O)cadmium(II), C16H18N4O2Cl2Cd
  81. A redetermination of the crystal structure of catena-poly[(bis(O,O′-isopropyl dithiophosphato-κ2S,S′)-(μ2-1,2-bis(3-pyridylmethylene)hydrazine-κ2N,N′)cadmium(II)], {C24H38CdN4O4P2S4}n
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