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Prop-2-yn-1-yl 4,6-di-O-acetyl-2,3-dide-oxy-α-d-erythro-hex-2-enopyran-o-side.

ABSTRACT: The absolute structure of the title compound, C(13)H(16)O(6), was determined. The pyranosyl ring adopting an envelope conformation. The acetyl groups are located in equatorial positions. The crystal structure features weak C-H⋯O inter-actions.

SUBMITTER: Mesfin FM

PROVIDER: S-EPMC3238960 | biostudies-literature | 2011 Dec

REPOSITORIES: biostudies-literature

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Prop-2-yn-1-yl 4,6-di-O-acetyl-2,3-dide-oxy-α-d-erythro-hex-2-enopyran-o-side.

Mesfin Fanuel M FM Kinfe Henok H HH Muller Alfred A

Acta crystallographica. Section E, Structure reports online 20111116 Pt 12

The absolute structure of the title compound, C(13)H(16)O(6), was determined. The pyranosyl ring adopting an envelope conformation. The acetyl groups are located in equatorial positions. The crystal structure features weak C-H⋯O inter-actions. ...[more]

PMID: 22199809

Similar Datasets

Phenyl 4,6-di-O-acetyl-2,3-dide-oxy-1-thio-α-d-erythro-hex-2-enopyran-oside.

Project description:The pyranosyl ring in the title compound, C(16)H(18)O(5)S, adopts an envelope conformation, with the acetyl groups in equatorial positions. In the crystal, weak C-H⋯O inter-actions link the molecules into chains.

| S-EPMC3247579 | biostudies-literature

(-)-Benzyl 2,3-dide-oxy-β-d-erythro-hex-2-eno-pyran-oside.

Project description:In the title compound, C13H16O4, the six-membered ring of the sugar moiety shows a half-chair conformation. In the crystal, mol-ecules are connected via O-H⋯O hydrogen bonds, forming columns around twofold screw axes along the b-axis direction. There is a disorder of the benz-yloxy group, which has two possible orientations with the phenyl group lying on a common plane [site-occupancy factors = 0.589 (9) and 0.411 (9)].

| S-EPMC4004438 | biostudies-literature

2,3-Bis(prop-2-yn-yloxy)naphthalene.

Project description:In the crystal structure of the title compound, C(16)H(12)O(2), no classical hydrogen bonds or aromatic π-π stacking inter-actions were observed. The mol-ecules are linked into a three-dimensional framework by a combination of C-H⋯O and C-H⋯π(arene) hydrogen bonds.

| S-EPMC2960027 | biostudies-literature

3-(Benzothia-zol-2-yl)-3-(prop-2-yn-yl)hex-5-yn-2-one.

Project description:The title compound, C(16)H(13)NOS, was prepared by alkyl-ation of 1-(benzothia-zol-2-yl)propan-2-one with propargyl bromide. The asymmetric unit contains two mol-ecules that are crystallographically independent but linked to each other by non-classical C-H⋯O hydrogen bonds, building up a dimeric substructure. The benzothia-zole rings are essentially planar with maximum deviations of 0.005 (1) and 0.007 (2) Å for the N atoms. Although the two mol-ecules have similar bond distances and angles, they slightly differ in the orientation of the benzothia-zole ring with respect to the two propargyl groups and the acetonyl unit . In the crystal, inter-molecular C-H⋯O inter-actions link the dimeric subunits into a two-dimensional array in the bc plane.

| S-EPMC2983859 | biostudies-literature

1-(Prop-2-yn-yl)indoline-2,3-dione.

Project description:The structure of the title compound, C11H7NO2, is isotypic to that of its homologue, 1-octylindoline-2,3-dione [Qachchachi et al. (2013 ▶). Acta Cryst. E69, o1801]. The indoline ring and the two carbonyl O atoms are approximately coplanar, the largest deviation from the mean plane being 0.021 (1) Å for one of the O atoms. The mean plane through the fused ring system is nearly perpendicular to the propynyl group, as indicated by the N-C-C-C torsion angle of 77.9 (1)°. In the crystal, mol-ecules are linked by C-H⋯O hydrogen bonds and π-π inter-actions between benzene rings [inter-centroid distance = 3.5630 (10) Å], forming a three-dimensional structure.

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2,4-Bis[(prop-2-yn-yl)-oxy]benzaldehyde.

Project description:In the title compound, C(13)H(10)O(3), two prop-2-yn-yloxy groups are attached to the benzaldehyde ring at positions 2 and 6. The crystal packing features C-H⋯O inter-actions.

| S-EPMC3414921 | biostudies-literature

4-(Prop-2-yn-1-yl-oxy)benzaldehyde.

Project description:In the title mol-ecule, C10H8O2, all non-H atoms are essentailly coplanar (r.m.s. deviation = 0.0192 Å), indicating an effective conjugation of the carbonyl group, the benzene ring and the lone pair of the propyn-yloxy O atom. In the crystal, π-π stacking inter-actions [centroid-centroid distance = 3.5585 (15) Å] connect mol-ecules into inversion dimers which are linked by Csp-H⋯O=C hydrogen bonds, forming a ladder-like structure.

| S-EPMC3588297 | biostudies-literature

1,6-Bis(prop-2-yn-1-yl-oxy)naphthalene.

Project description:The title compound, C(16)H(12)O(2), contains two prop-2-yn-1-yl-oxy groups attached to a naphthalene ring system at the 1- and 6-positions. The crystal packing includes an inter-molecular C-H⋯π inter-action between a terminal ethynyl H atom and an ethynyl group on a glide-related mol-ecule and another inter-action between an O-atom-linked methyl-ene H and an ethynyl group of a different glide-related mol-ecule.

| S-EPMC3213501 | biostudies-literature

2,7-Bis(prop-2-yn-1-yl-oxy)naphthalene.

Project description:The title compound, C(16)H(12)O(2), was synthesized from naphthalene-2,7-diol and prop-2-ynyl 4-methyl-benzene-sulfonate in the presence of sodium hydride. The crystal packing exhibits inter-molecular non-classical C-H⋯O hydrogen bonds and C-H⋯π inter-actions.

| S-EPMC3006840 | biostudies-literature

3-(Prop-2-yn-1-yl-oxy)phthalo-nitrile.

Project description:In the title compound, C11H6N2O {systematic name: 3-(prop-2-yn-1-yl-oxy)benzene-1,2-dicarbo-nitrile}, the 14 non-H atoms are approximately coplanar (r.m.s. deviation = 0.051 Å) with the terminal ethyne group being syn with the adjacent cyano residue. In the crystal, centrosymmetric dimers are connected by pairs of C-H⋯N inter-actions and these are linked into a supra-molecular tape parallel to (1-30) via C-H⋯N inter-actions involving the same N atom as acceptor.

| S-EPMC3770356 | biostudies-literature

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