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Ethyl 6-(4-fluoro-phen-yl)-4-hy-droxy-2-oxo-4-trifluoro-meth-yl-1,3-diazinane-5-carboxyl-ate monohydrate.

ABSTRACT: The asymmetric unit of the title compound, C(14)H(14)F(4)N(2)O(4)·H(2)O, contains two crystallographically independent organic mol-ecules and two water mol-ecules. The two 1,3-diazinane rings adopt a half-chair conformation and the dihedral angles between their mean planes and those of the benzene rings are 75.65 (4)° and 49.41 (3)° in the two mol-ecules. The crystal structure is stabilized by inter-molecular O-H⋯O and N-H⋯O hydrogen bonds.

SUBMITTER: Li GC

PROVIDER: S-EPMC3151995 | biostudies-literature |

REPOSITORIES: biostudies-literature

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Ethyl 6-(4-fluoro-phen-yl)-4-hy-droxy-2-sulfanyl-idene-4-trifluoro-methyl-1,3-diazinane-5-carboxyl-ate.

Project description:In the title compound, C(14)H(14)F(4)N(2)O(3)S, the hexa-hydro-pyrimidine ring adopts a half-chair conformation. The mol-ecular conformation is stabilized by an intra-molecular O-H⋯O hydrogen bond, generating an S(6) ring. The crystal structure features O-H⋯S and N-H⋯S hydrogen bonds.

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Ethyl 4-hy-droxy-6-(4-hy-droxy-phen-yl)-4-trifluoro-methyl-2-sulfanyl-idene-1,3-diazinane-5-carboxyl-ate ethanol monosolvate.

Project description:The title compound, C(14)H(15)F(3)N(2)O(4)S·C(2)H(5)OH, was prepared by reaction of 4-hy-droxy-benzaldehyde, ethyl 4,4,4-trifluoro-3-oxobutano-ate and thio-urea. The hexa-hydro-pyrimidine ring adopts a half-chair conformation, the mean plane formed by the ring atoms excluding the C atom bonded to the eth-oxy-carbonyl group has an r.m.s. deviation of 0.0333?Å, and the dihedral angle between this plane and the benzene ring is 56.76?(5)°. The mol-ecular conformation is stabilized by an intra-molecular O-H?O hydrogen bond, generating an S(6) ring. The crystal structure is stabilized by inter-molecular O-H?O, O-H?S, N-H?O and N-H?S hydrogen bonds. The ethyl group of the ester unit is disordered over two positions, with an occupancy ratio of 0.757?(10):0.243?(10).

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Project description:In the title compound, C(14)H(15)F(3)N(2)O(5), prepared by reaction of 2-hy-droxy-benzaldehyde, ethyl 4,4,4-trifluoro-3-oxobutano-ate and urea, the tetra-pyrimidine ring adopts a half-chair conformation. The crystal structure is stabilized by five inter-molecular hydrogen bonds, three O-H⋯O and two N-H⋯O, giving cyclic dimers (through three hydrogen bonds) which are further extended into a two-dimensional network.

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rac-Ethyl 4-hy-droxy-4-trifluoro-methyl-6-(2,4,5-trimeth-oxy-phen-yl)-2-thio-1,3-diazinane-5-carboxyl-ate.

Project description:In the title compound, C(17)H(21)F(3)N(2)O(6)S, the hexa-hydro-pyrimidine ring adopts a half-chair conformation: the mean plane formed by the ring atoms excluding the C atom bonded to the eth-oxy-carbonyl group has an r.m.s. deviation of 0.0427?Å and forms a dihedral angle of 66.41?(5)° with the benzene ring. The mol-ecular conformation is stabilized by an intra-molecular hydroxyl O-H?O(carbox-yl) hydrogen bond, generating an S(6) ring. In the crystal, pairs of N-H?S and N-H?O hydrogen bonds give rise to the formation of two-dimensional networks lying parallel to the ab plane, which incorporate graph-set motifs R(2) (2)(8) and R(2) (2)(16), respectively.

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Crystal structure of ethyl 6-(2-fluoro-phen-yl)-4-hy-droxy-2-sulfanyl-idene-4-tri-fluoro-meth-yl-1,3-diazinane-5-carboxyl-ate.

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tert-Butyl 2-{[2,8-bis-(trifluoro-meth-yl)quinolin-4-yl](hy-droxy)meth-yl}piperidine-1-carboxyl-ate.

Project description:The title mol-ecule, C(22)H(24)F(6)N(2)O(3), adopts a folded conformation whereby the carboxyl-ate residue lies over the quinolinyl residue, with the dihedral angle between the carbamate and quinoline planes being 41.64 (7)°. Helical supra-molecular C(7) chains sustained by O-H⋯O hydrogen bonds propagating along the a-axis direction feature in the crystal packing. The F atoms of one of the CF(3) groups are disordered over two orientations; the major component has a site occupancy of 0.824 (7).

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Crystal structure of methyl 4-(4-hy-droxy-phen-yl)-6-methyl-2-oxo-1,2,3,4-tetra-hydro-pyrimidine-5-carboxyl-ate monohydrate.

Project description:The title hydrate, C13H14N2O4·H2O, crystallizes with two formula units in the asymmetric unit (Z' = 2). The dihedral angles between the planes of the tetra-hydro-pyrimidine ring and the 4-hy-droxy-phenyl ring and ester group are 86.78?(4) and 6.81?(6)°, respectively, for one mol-ecule and 89.35?(4) and 3.02?(4)° for the other. In the crystal, the organic mol-ecules form a dimer, linked by a pair of N-H?O hydrogen bonds. The hydroxy groups of the organic mol-ecules donate O-H?O hydrogen bonds to water mol-ecules. Further, the hy-droxy group accepts N-H?O hydrogen bonds from amides whereas the water mol-ecules donate O-H?O hydrogen bonds to the both the amide and ester carbonyl groups. Other weak inter-actions, including C-H?O, C-H?? and ?-?, further consolidate the packing, generating a three-dimensional network.

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Ethyl 1-(2-hy-droxy-eth-yl)-2-(4-meth-oxy-phen-yl)-1H-benzimidazole-5-carboxyl-ate monohydrate.

Project description:In the title mol-ecule, C(19)H(20)N(2)O(4)·H(2)O, the benzimidazole ring system is essentially planar [maximum deviation = 0.013?(11)?Å] and is inclined to the 4-meth-oxy-phenyl ring by 30.98?(5)°. In the crystal, O-H?O and O-H?N hydrogen bonds involving the water mol-ecule link neighbouring mol-ecules, forming a two-dimensional network lying parallel to the bc plane. There are also C-H?? and ?-? inter-actions present. The latter involve inversion-related benzimidazole rings with centroid-centroid distances of 3.5552?(8) and 3.7466?(8)?Å.

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[6-(Hy-droxy-meth-yl)pyridin-2-yl]methyl ferrocene-1-carboxyl-ate.

Project description:The crystal structure of the title ferrocene derivative, [Fe(C(5)H(5))(C(13)H(12)NO(3))], shows strong inter-molecular O-H?N hydrogen bonds between the alcohol function and the pyridine group of a neighbouring mol-ecule, while the pyridine function forms another hydrogen bond with the alcohol function of another neighbouring mol-ecule, resulting in the formation of chains along the a-axis direction.

| S-EPMC3247539 | biostudies-literature

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