Browse
Submit Data
Databases
API
Help

Dataset Information

20 Views

0 Connections

0 Citations

0 Reanalyses

0 Downloads

Omics score: 0

3,9-Di-1-naphthyl-2,4,8,10-tetra-oxa-spiro-[5.5]undeca-ne.

ABSTRACT: In the title compound, C(27)H(24)O(4), the 1,3-dioxane rings have chair conformations. The mol-ecule has non-crystallographic twofold rotation symmetry. The dihedral angle between the naphthalene ring systems is 17.96(4)° In the crystal structure, weak inter-molecular C-H?? inter-actions contribute to the crystal packing.

SUBMITTER: Zhang X

PROVIDER: S-EPMC2979257 | biostudies-literature | 2010 Apr

REPOSITORIES: biostudies-literature

ACCESS DATA

Json Xml

Publications

3,9-Di-1-naphthyl-2,4,8,10-tetra-oxa-spiro-[5.5]undeca-ne.

Zhang Xiuqin X Cui Yuan Y Yu Bin B Sun Xiaoqiang X Chen Qiang Q

Acta crystallographica. Section E, Structure reports online 20100428 Pt 5

In the title compound, C(27)H(24)O(4), the 1,3-dioxane rings have chair conformations. The mol-ecule has non-crystallographic twofold rotation symmetry. The dihedral angle between the naphthalene ring systems is 17.96(4)° In the crystal structure, weak inter-molecular C-H⋯π inter-actions contribute to the crystal packing. ...[more]

PMID: 21579228

Similar Datasets

3,3,9,9-Tetra-phenyl-2,4,8,10-tetra-oxa-spiro-[5.5]undeca-ne.

Project description:In the title compound, C(31)H(28)O(4), the asymmetric unit contains two crystallographically independent mol-ecules. In these two mol-ecules, the four dihedral angles between each pair of phenyl rings on the same C atoms are 75.4?(1), 83.0?(1), 85.0?(1) and 80.4?(2)°. All of the nonplanar six-membered heterocycles adopt chair conformations. Inter-molecular C-H?? and weak C-H?O inter-actions link the mol-ecules and are effective in the stabilization of the crystal structure.

| S-EPMC3009283 | biostudies-literature

Crystal structure of rac-3,9-bis-(2,6-di-fluoro-phen-yl)-2,4,8,10-tetra-oxa-spiro[5.5]undeca-ne.

Project description:The title compound, C19H16F4O4, was prepared by the condensation reaction of 2,6-di-fluoro-benzaldehyde and penta-erythritol. The whole mol-ecule is generated by twofold rotational symmetry. The two six-membered O-heterocycles adopt chair conformations through a shared spiro-carbon atom that is located on the crystallographic twofold rotation axis. In this conformation, the two aromatic rings are located at the equatorial positions of the O-heterocycles. The conformation of this doubly substituted tetra-oxa-spiro system is chiral. In the crystal, mol-ecules are linked by C-H?O hydrogen bonds, forming layers parallel to (100). These layers are linked by C-H?F hydrogen bonds into a three-dimensional structure.

| S-EPMC4384547 | biostudies-literature

3,9-Di-tert-butyl-2,4,8,10-tetra-oxaspiro-[5.5]undeca-ne.

Project description:The title compound, C(15)H(28)O(4), was prepared by the condensation of pivalaldehyde with penta-erythritol. In the crystal, the two halves of the mol-ecule are related by a crystallographic twofold rotation axis passing through the central spiro-C atom. The two non-planar six-membered heterocycles both adopt chair conformations with the two tert-butyl groups both located in the equatorial positions.

| S-EPMC3011739 | biostudies-literature

3,9-Diisopropyl-2,4,8,10-tetra-thia-spiro-[5.5]undeca-ne.

Project description:The mol-ecule of the title compound, C(13)H(24)S(4), has C2 symmetry and it crystallizes as a racemate. The structure displays two six-membered rings exhibiting chair conformations, with the isopropyl substituents in equatorial positions. In the crystal structure, weak inter-molecular C-H?S inter-actions are observed, leading to a channel-like arrangement along the c axis.

| S-EPMC2983234 | biostudies-other

2,4,8,10-Tetra-oxa-3,9-dithia-spiro-[5.5]undecane 3,9-dioxide.

Project description:The asymmetric unit of the title compound, C(5)H(8)O(6)S(2), consists of two spiro-[5.5]undecane mol-ecules. The nonplanar six-membered rings adopt chair conformations. In the crystal structure, weak inter-molecular C-H⋯O inter-actions, together with close O⋯S contacts in the range 3.308 (3)-3.315 (3) Å, stabilize the packing.

| S-EPMC2967953 | biostudies-literature

3,9-Di-2-furyl-2,4,8,10-tetra-oxa-spiro-[5.5]undecane.

Project description:The title compound, C(15)H(16)O(6), was prepared by reaction of 2,2-bis-(hydroxy-meth-yl)propane-1,3-diol with 2-furaldehyde in the presence of hydro-chloric acid at room temperature. The asymmetric unit contains two crystallographically independent mol-ecules. In these two mol-ecules, the dihedral angles between the five-membered rings are 56.4?(3) and 56.3?(3)°. The six-membered rings adopt chair conformations. Inter-molecular C-H?? inter-actions link the mol-ecules and may be effective in the stabilization of the crystal structure.

| S-EPMC2959543 | biostudies-other

3,9-Dichloro-2,4,8,10-tetra-oxa-3,9-di-phosphaspiro-[5.5]undecane-3,9-dione.

Project description:In the title compound, C(5)H(8)Cl(2)O(6)P(2), the two six-membered rings display chair conformations. The P=O bond distances are 1.444?(2) and 1.446?(2)?Å. Weak inter-molecular C-H?O hydrogen bonds are present in the crystal structure.

| S-EPMC3009252 | biostudies-literature

3,9-Bis(2,4-dichloro-phen-yl)-2,4,8,10-tetra-oxaspiro-[5.5]undeca-ne.

Project description:In the title compound, C(19)H(16)Cl(4)O(4), the two halves of the mol-ecule are related by a crystallographic twofold rotation axis passing through the central spiro-C atom. The two non-planar six-membered heterocycles both adopt chair conformations, and the dihedral angle between the two benzene rings is 76.6?(1)°. In the crystal structure, inter-molecular C-H?O hydrogen bonds link the mol-ecules into chains along the c axis.

| S-EPMC3007031 | biostudies-literature

3,9-Bis(2-chloro-phen-yl)-2,4,8,10-tetra-oxaspiro-[5.5]undeca-ne.

Project description:The complete mol-ecule of the title compound, C(19)H(18)Cl(2)O(4), is generated by a crystallographic twofold axis that passes through the spiro C atom. The 1,3-dioxane ring adopts a chair conformation and the phenyl substituent occupies an equatorial site.

| S-EPMC2979752 | biostudies-literature

3,9-Dimethyl-3,9-bis-(4-nitro-phen-yl)-2,4,8,10-tetra-oxaspiro-[5.5]undeca-ne.

Project description:In the title compound, C(21)H(22)N(2)O(8), both of the nonplanar six-membered heterocycles adopt chair conformations. The dihedral angle between the terminal benzene rings is 58.22?(11)°. Weak inter-molecular C-H?O inter-actions are observed in the crystal structure.

| S-EPMC3120352 | biostudies-other

OmicsDI is part of the ELIXIR infrastructure

OmicsDI is an Elixir interoperability service. Learn more ›

OmicsDI Databases

PRIDE
PeptideAtlas
MassIVE
JPOST Repository
Physiome Model Repository

EGA
EVA
ENA
LINCS
PAXDB
Cell Collective

MetaboLights
Metabolomics Workbench
MetabolomeExpress
GNPS
BioModels
FAIRDOMHub

ArrayExpress
dbGaP
ExpressionAtlas
GEO
NODE

Information

Databases
Help
API
Contact us
Code on GitHub
Terms of use
Submit Data