2,2-dimethyl-5-(5-r-furfurylidene)-1,3-dioxane4,6 diones 7. Synthesis, structure, and properties of 2,2dimethyl-5-(3-furfuryldiene and 3-thienylidene)-1,3dioxane-4,6-diones
✍ Scribed by G. D. Krapivin; N. I. Val'ter; V. E. Zavodnik; D. Vegkh; L. Fishera; V. G. Kul'nevich
- Publisher
- Springer US
- Year
- 1995
- Tongue
- English
- Weight
- 478 KB
- Volume
- 31
- Category
- Article
- ISSN
- 0009-3122
No coin nor oath required. For personal study only.
📜 SIMILAR VOLUMES
Single-crystal X-ray study T = 297 K Mean (C-C) = 0.004 A Disorder in main residue R factor = 0.076 wR factor = 0.204 Data-to-parameter ratio = 12.9 For details of how these key indicators were automatically derived from the article, see http://journals.iucr.org/e.
In the title compound C 7 H 9 NO 4 , the 1,3-dioxane-4,6-dione ring exhibits an envelope conformation. Intermolecular hydrogen bonds connect the molecules into chains. One intramolecular N-HÁ Á ÁO hydrogen bond to a carbonyl O atom is also observed, forming a six-membered ring.
This work describes the first solid-state structural study of a cyclic enaminone derivative from Meldrum's acid, C 10 H 13 NO 4 . The packing shows an infinite linear chain along [111] mediated by dimeric N-HÁ Á ÁO and nonclassical C-HÁ Á ÁO hydrogen-bonding interactions.