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4-{[(1S,2R)-2-Hy-droxy-indan-1-yl]amino}-pent-3-en-2-one.

ABSTRACT: In the mol-ecule of the title compound, C(14)H(17)NO(2), the dihedral angle formed by the mean planes through the indan ring system and the amino-pentenone fragment is 83.26 (13)°. An intra-molecular N-H⋯O hydrogen bond is observed. In the crystal, mol-ecules are linked into one-dimensional chains extending along the [010] direction via O-H⋯O and C-H⋯O hydrogen bonds.

SUBMITTER: Park KH

PROVIDER: S-EPMC3414912 | biostudies-literature |

REPOSITORIES: biostudies-literature

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2-[(4-Chloro-phen-yl)(2-hy-droxy-5-oxo-cyclo-pent-1-en-1-yl)meth-yl]-3-hy-droxy-cyclo-pent-2-en-1-one.

Project description:There are two mol-ecules in the asymmetric unit of the title compound, C(17)H(15)ClO(4), in which the dihedral angles between the five-membered rings are 57.3?(1) and 51.4?(1)°. An intra-molecular O-H?O hydrogen bond occurs in each mol-ecule. In the crystal, O-H?O and C-H?O hydrogen bonds link the moleclues into chains along the b axis.

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(Z)-4-(2-Hy-droxy-anilino)pent-3-en-2-one.

Project description:In the title compound, C(11)H(13)NO(2), the dihedral angle between the planes defined by the 2-hy-droxy-phenyl-amino group and the pent-3-en-2-one mean plane [maximum deviations = 0.0275 (19) and 0.054 (2) Å, respectively] is 31.01 (10)°. There are intra-molecular bifurcated N-H⋯(O,O) hydrogen bonds involving the amine NH group and the adjacent carbonyl and hy-droxy O atoms. In the crystal, mol-ecules are linked via O-H⋯O hydrogen bonds, forming chains propagating along [100].

| S-EPMC3393989 | biostudies-literature

(1S,2R)-1-[(E)-(Thio-phen-2-yl-methyl-idene)amino]-indan-2-ol.

Project description:In the title compound, C(14)H(13)NOS, the dihedral angle formed by the mean planes through the indane ring system and the thio-phene ring is 85.04 (11)°. The imine bond is located in the thio-phene plane [the S-C-C-N torsion angle is 0.00 (3)°] and an intra-molecular O-H⋯N hydrogen bond is observed.

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4-Hy-droxy-indan-1-one.

Project description:The mol-ecule of the title compound, C(9)H(8)O(2), is essentially planar except for the methyl-ene H atoms [maximum deviation = 0.028?(1)?Å]. In the crystal, the mol-ecules are linked by classical O-H?O hydrogen bonds and weak C-H?O inter-actions into chains along [110] and [1-10].

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7-Hy-droxy-indan-1-one.

Project description:In the title compound, C(9)H(8)O(2), an intra-molecular O-H?O hydrogen bond generates an S(6) ring. The dihedral angle between the mean plane of the S(6) ring and the benzene ring is 1.89?(2)°. In the crystal, inversion-related mol-ecules are linked by pairs of O-H?O hydrogen bonds, forming a cyclic dimers with R(2) (2)(12) graph-set motif. Weak inter-molecular C-H?O(carbon-yl) and C-H?O(hy-droxy) hydrogen bonds link the dimers into chains along [010], generating two C(6) motifs that overlap three C atoms, forming R(2) (2)(8) ring motifs.

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5-Hy-droxy-indan-1-one.

Project description:In the title compound (5HIN), C(9)H(8)O(2), is perfectly planar as all atoms, except the H atoms of both CH(2) groups, lie on a crystallographic mirror plane. In the crystal, mol-ecules are linked by strong inter-molecular O-H⋯O hydrogen bonds, forming an infinite chain along [100], generating a C(8) motif.

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tert-Butyl N-hydr-oxy-N-[(1S*,2R*)-2-(1-naphth-yl)cyclo-pent-3-en-1-yl]carbamate.

Project description:The relative stereochemistry of the title compound, C(20)H(23)NO(3), was established by X-ray analysis. The asymmetric unit contains two independent mol-ecules. In the crystal structure, each type of mol-ecule forms a centrosymmetric dimer via pairs of inter-molecular O-H?O hydrogen bonds, resulting in an R(2) (2)(10) loop in each case.

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4-[(4-Methyl-phen-yl)amino]-pent-3-en-2-one.

Project description:The title enamino-ketone, C(12)H(15)NO, is a derivative of 4-(phenyl-amino)-pent-3-en-2-one with an approximately planar pentenone backbone, the greatest displacement from the plane being 0.042 (1) Å; the asymmetry in C-C distances in the group suggests the presence of unsaturated bonds. The dihedral angle between the benzene ring and the pentenone plane is 29.90 (4)°. In the crystal, an intra-molecular N-H⋯O inter-action and an inter-molecular C-H⋯O hydrogen bond are observed.

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Crystal structure of (1S,2R,4R,9S,11S,12R)-9?-hy-droxy-4,8-dimethyl-12-[(thio-morpholin-4-yl)meth-yl]-3,14-dioxatri-cyclo-[9.3.0.0(2,4)]tetra-dec-7-en-13-one.

Project description:The title compound, C19H29NO4S, was synthesised from 9?-hy-droxy-parthenolide (9?-hy-droxy-4,8-dimethyl-12-methyl-ene-3,14-dioxatri-cyclo-[9.3.0.0(2,4)]tetra-dec-7-en-13-one), which was isolated from the chloro-form extract of the aerial parts of the plant Anvillea radiata. The mol-ecule is built up from two fused five- and ten-membered rings, with an additional ep-oxy ring system and a thio-morpholine group as a substituent. The ten-membered ring adopts an approximate chair-chair conformation, while the thio-morpholine ring displays a chair conformation and the five-membered ring has an envelope conformation, with the C atom closest to the hy-droxy group forming the flap. An intra-molecular O-H?N hydrogen bond closes an S(8) ring. The crystal structure features weak C-H?O hydrogen-bonding inter-actions, which link the mol-ecules into [010] chains.

| S-EPMC4384556 | biostudies-literature

(1E)-1-[4-(Dimethyl-amino)phen-yl]pent-1-en-3-one.

Project description:The title mol-ecule, C(13)H(17)NO, is close to planar: the dihedral angle betweent the dimethyl amino group and the benzene ring is 7.94 (19)°. No significant inter-molecular inter-actions are observed in the crystal structure.

| S-EPMC2972092 | biostudies-literature

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