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5-(4-Fluoro-phen-yl)-4-(4-pyrid-yl)-1,3-oxazol-2-amine.

ABSTRACT: In the crystal structure of the title compound, C(14)H(10)FN(3)O, the plane of the isoxazole ring makes dihedral angles of 35.72?(9) and 30.00?(9)°, respectively, with those of the 4-fluoro-phenyl and pyridine rings. The plane of the 4-fluoro-phenyl ring makes a dihedral angle of 45.85?(8)° with that of the pyridine ring. The crystal structure is stabilized by inter-molecular N-H?N hydrogen bonding. The two types of hydrogen bonds result in two chains, extending along the a axis, which are related by centres of symmetry.

SUBMITTER: Koch P

PROVIDER: S-EPMC2983790 | biostudies-literature |

REPOSITORIES: biostudies-literature

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5-(4-Fluoro-phen-yl)-2-[2-(5-phenyl-1,3-oxazol-2-yl)phen-yl]-1,3-oxazole.

Project description:In the title compound, C(24)H(15)FN(2)O(2), the dihedral angles between the central benzene ring and the oxazole rings are 10.7 (6) and 64.1 (5)°. The dihedral angles between the oxazole rings and their pendant rings are 2.0 (3) and 24.3 (2)°. The F atoms are disordered over two sites with occupancies of 0.627 (3) and 0.373 (3) in the phenyl-ene-oxazol-yl-phenyl and in oxazol-yl-phenyl fragments, respectively. In the crystal structure, mol-ecules are linked through a network of C-H⋯F and weak π-π stacking inter-actions.

| S-EPMC3007962 | biostudies-literature

N-(4-Fluoro-phen-yl)-2,6-dimethyl-1,3-dioxan-4-amine.

Project description:In the title compound, C12H16FNO2, the dioxane ring adopts a chair conformation with the methyl substituents and the C-N bond in equatorial orientations. Its mean plane subtends a dihedral angle of 40.17?(6)° with the benzene ring. In the crystal, weak N-H?F hydrogen bonds link the mol-ecules into C(7) chains propagating in [100].

| S-EPMC3884279 | biostudies-literature

N-(2-Fluoro-phen-yl)-2,6-dimethyl-1,3-dioxan-4-amine.

Project description:In the title compound, C12H16FNO3, the dioxane ring adopts a chair conformation with the methyl groups and amine N atom in equatorial positions. The best plane through the dioxane ring makes a dihedral angle of 43.16?(8)° with the phenyl ring. In the crystal, pairs of C-H?O hydrogen bonds link the mol-ecules into centrosymmetric R 2 (2)(8) dimers, which are linked into [100] chains by further C-H?O hydrogen bonds. The N-H group does not participate in hydrogen bonding.

| S-EPMC3790394 | biostudies-literature

1,3-Bis(4-fluoro-phen-yl)-N,N'-(propane-1,3-diyl-idene)dihydroxyl-amine.

Project description:The title compound, C(15)H(12)F(2)N(2)O(2), crystallizes with two mol-ecules (A and B) in the asymmetric unit. Both aromatic rings of both mol-ecules are disordered over two orientations [occupancy ratios of 0.768?(3):0.232?(3) and 0.770?(3):0.230?(3) for mol-ecule A and 0.789?(3):0.211?(3) and 0.789?(3):0.211?(3) for mol-ecule B]. The dihedral angles between the planes of the major and minor components of the disordered aromatic rings are 72.0?(4) and 71.2?(4)° for mol-ecule A, and 70.2?(4) and 71.5?(2)° for mol-ecule B. In the crystal, both mol-ecules form inversion dimers with R(2) (2)(6) ring motifs via pairs of inter-molecular O-H?N hydrogen bonds. The dimers are linked, forming zigzag C(7) chains along the c axis. Weak C-H?? inter-actions help to consolidate the packing.

| S-EPMC3212338 | biostudies-literature

N-{4-[3-(4-Fluoro-phen-yl)pyrido[2,3-b]pyrazin-2-yl]-2-pyrid-yl}isopropyl-amine.

Project description:In the crystal structure of the title compound, C(21)H(18)FN(5), the pyridopyrazine ring system forms dihedral angles of 33.27?(7) and 48.69?(9)° with the 4-fluoro-phenyl and pyridine ring, respectively. The dihedral angle of the 4-fluoro-phenyl and pyridine rings is 57.45?(8)°. The crystal packing is characterized by an inter-molecular N-H?N hydrogen bond.

| S-EPMC2970374 | biostudies-literature

N-{2-[(4S)-4-tert-Butyl-4,5-dihydro-1,3-oxazol-2-yl]phen-yl}-5,6-diphenyl-1,2,4-triazin-3-amine.

Project description:The title compound, C(28)H(27)N(5)O, was synthesized using palladium cross-coupling amination of 3-bromo-5,6-diphenyl-1,2,4-triazine with 2-[(4S)-4-tert-butyl-4,5-dihydro-1,3-oxazol-2-yl]aniline. The oxazoline ring is almost planar, with a maximum atomic deviation of 0.023 (5) Å. The phenyl rings make dihedral angles of 29.0 (1) and 54.6 (1)° with the triazine ring while the benzene ring makes a dihedral angle of 0.6 (1)° with the oxazoline ring. The conformation of the mol-ecule is influenced by strong intra-molecular N-H⋯N and weak C-H⋯N hydrogen bonds. In the crystal, screw-axis related mol-ecules are linked into supra-molecular chains by inter-molecular C-H⋯O hydrogen bonds. π-π stacking is observed between the oxazoline and triazine rings of adjacent mol-ecules, with a centroid-centroid distance of 3.749 (2) Å.

| S-EPMC3052057 | biostudies-literature

2,4,6-Tris-(4-fluoro-phen-yl)-2-(1-pyrid-yl)-boroxine.

Project description:Crystals of the title compound, C(23)H(17)B(3)F(3)NO(3), were obtained unintentionally by slow evaporation of a chloro-form solution of the preformed boroxine-pyridine adduct. The mol-ecule contains three fluoro-substituted benzene rings, each bonded to one of the three B atoms of a six-membered boroxine ring. A pyridyl ring is also bound to one of the B atoms through a Lewis acid-base inter-action. The binding of the pyridyl substituent causes the otherwise planar boroxine ring to twist, resulting in a maximum torsion angle within the ring of 17.6?(2)°.

| S-EPMC2915295 | biostudies-literature

2-(4-Fluoro-phen-yl)-3-(4-pyrid-yl)pyrido[2,3-b]pyrazine.

Project description:In the crystal structure of the title compound, C(18)H(11)FN(4), the pyridopyrazine system makes dihedral angles of 45.51?(7) and 44.75?(7)° with the attached 4-fluoro-phenyl ring and the pyridine ring, respectively. The 4-fluoro-phenyl ring makes a dihedral angle of 54.54?(8)° with the pyridine ring. The pyridine ring part of the pyridopyrazine ring and the pyrazine ring of two c-glide-plane-related mol-ecules form ?-? inter-actions. The angle between the planes is 2.09?(7)° and the distance between the centroids is 3.557?(1)Å.

| S-EPMC2970199 | biostudies-literature

3-(4-Fluoro-phen-yl)-6-meth-oxy-2-(4-pyrid-yl)quinoxaline.

Project description:In the title compound, C(20)H(14)FN(3)O, the quinoxaline system makes dihedral angles of 32.38?(7) and 48.04?(7)° with the 4-fluoro-phenyl and pyridine rings, respectively. The 4-fluoro-phenyl ring makes a dihedral angle of 57.77?(9)° with the pyridine ring. In the crystal, the mol-ecules form dimeric C-H?N hydrogen-bonded R(2) (2)(20) ring motifs lying about crystallographic inversion centers. The dimeric units stack via ?-? inter-actions between methoxy-phenyl rings and pyridine-fluoro-phenyl rings with centroid-centroid distances of 3.720?(1) and 3.823?(1)?Å, respectively. The respective average perpendicular distances are 3.421 and 3.378?Å, with dihedral angles between the rings of 1.31?(9) and 11.64?(9)°.

| S-EPMC2969274 | biostudies-literature

3-(4-Fluoro-phen-yl)-2-(4-pyrid-yl)pyrido[2,3-b]pyrazine.

Project description:In the crystal structure of the title compound, C(18)H(11)FN(4), the pyridopyrazine ring makes dihedral angles of 34.67?(7) and 52.24?(7)° with the 4-fluoro-phenyl and pyridine rings, respectively. The 4-fluoro-phenyl ring makes a dihedral angle of 59.56?(9)° with the pyridine ring.

| S-EPMC2970414 | biostudies-literature

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