5-[5-R-furfurylidene]-2,2-dimethyl-1,3-dioxane-4,6-diones 6. Synthesis, structure, and properties of substituted furylimino- and furfurylidenephosphoranes. Molecular and crystal structure of N-[5-(2,2-dimethyl-4,6-dioxo-1,3-dioxan-5-ylidene)methyl-2-furylimino(triphenyl)phosphorane
Abstract
Furylimino- and furfurylidenephosphoranes have been synthesized by sequential conversions of 5-unsubstituted and 5-methylfurfurylidenedioxanediones. The ylide fragment linked directly with the furfurylidenedioxanedione residue displays strong electron-donating properties, as a result of which resonance occurs in the system of conjugated bonds. The molecular and crystal structure of the iminophosphorane was studied by X-ray structural analysis and the resonance of the bonds in the molecule was confirmed.
How to Cite
Krapivin, G. D.; Val'ter, N. I.; Zavodnik, V. E.; Kaklyugina, T. Ya.; Kul'nevich, V. G. Chem. Heterocycl. Compd. 1994, 30, 296. [Khim. Geterotsikl. Soedin. 1994, 335.]
For this article in the English edition, see DOI https://doi.org/10.1007/BF01165694