Crystallography Open Database
- COD Home
- Accessing COD Data
- Add Your Data
- Documentation
Information card for entry 1506693
Preview
| Coordinates | 1506693.cif |
|---|---|
| Original paper (by DOI) | HTML |
| External links | PubChem |
| Common name | tetrahydro-2H-cyclopenta[b]furan-3(3aH)-one |
|---|---|
| Formula | C14 H16 N2 O4 |
| Calculated formula | C14 H16 N2 O4 |
| SMILES | O1[C@]2(Nc3ccc(cc3)N(=O)=O)[C@@](C(=O)C1)(C)CCC2.O1[C@@]2(Nc3ccc(cc3)N(=O)=O)[C@](C(=O)C1)(C)CCC2 |
| Title of publication | Regioselective nucleophilic addition to carbonyl ylide intermediates: a novel diastereoselective synthesis of cycloalkyl fused furan-3-ones. |
| Authors of publication | Muthusamy, Sengodagounder; Gnanaprakasam, Boopathy; Suresh, Eringathodi |
| Journal of publication | Organic letters |
| Year of publication | 2005 |
| Journal volume | 7 |
| Journal issue | 21 |
| Pages of publication | 4577 - 4580 |
| a | 12.4574 ± 0.0018 Å |
| b | 7.9073 ± 0.0011 Å |
| c | 14.806 ± 0.002 Å |
| α | 90° |
| β | 109.547 ± 0.003° |
| γ | 90° |
| Cell volume | 1374.4 ± 0.3 Å3 |
| Cell temperature | 273 ± 2 K |
| Ambient diffraction temperature | 273 ± 2 K |
| Number of distinct elements | 4 |
| Space group number | 14 |
| Hermann-Mauguin space group symbol | P 1 21/n 1 |
| Hall space group symbol | -P 2yn |
| Residual factor for all reflections | 0.0923 |
| Residual factor for significantly intense reflections | 0.0676 |
| Weighted residual factors for significantly intense reflections | 0.187 |
| Weighted residual factors for all reflections included in the refinement | 0.2265 |
| Goodness-of-fit parameter for all reflections included in the refinement | 1.13 |
| Diffraction radiation wavelength | 0.71073 Å |
| Diffraction radiation type | MoKα |
| Has coordinates | Yes |
| Has disorder | No |
| Has Fobs | No |
| Revision | Date | Message | Files |
|---|---|---|---|
| 301775 (current) | 2025-08-18 | Add cross-references to PubChem compounds in COD range 1/50 Each referenced PubChem compound corresponds to the full crystal structure. |
1506693.cif |
| 176729 | 2016-02-18 | cif/ (antanas@echidna.ibt.lt) Replacing _[local]_cod_* tags with their equivalents from the COD CIF dictionary in multiple entries in range 1. |
1506693.cif |
| 134621 | 2015-04-02 | The 'cif_fix_values' script with an option '--fix-only-weighting-scheme' and 'cif_filter' script were run over CIF files which included an incorrect value of the data item '_refine_ls_weighting_scheme'. Read the log for more details. There were more than 18k CIF files with values to modify. Usually these incorrect values include comment with formulas, but values of this data item must be an enumerator. The script creates new data item '_refine_ls_weighting_details' to store these comments with formulas, and writes the enumerator 'calc' as a value of data item '_refine_ls_weighting_scheme'. There exists some exceptions in the script. |
1506693.cif |
| 120071 | 2014-07-11 | Adding DOIs to range 1 structures. | 1506693.cif |
| 50511 | 2012-03-31 | ../uploads/cif-deposit/cod/cif Adding structures of 1506692, 1506693, 1506694 via cif-deposit CGI script. |
1506693.cif |
All data in the COD and the database itself are dedicated to the
public domain and licensed under the
CC0
License
.
Users of the data should acknowledge the original authors of the
structural data.