Vibrational spectra and conformations of 2-oxo-2-methyl-1,3,2-dioxaphosphorinane and 2-oxo-2-methyl-1,3,2-dioxaphosphepane molecules
โ Scribed by R. R. Shagidullin; I. Kh. Shakirov; R. Kh. Musyakaeva; E. I. Matrosov
- Book ID
- 112449946
- Publisher
- Springer
- Year
- 1981
- Tongue
- English
- Weight
- 482 KB
- Volume
- 30
- Category
- Article
- ISSN
- 1573-9171
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๐ SIMILAR VOLUMES
The structure of the title compound, C 8 H 14 NO 2 P, the ยฎrst of a compound containing a 1,2-butadienyl group bound to the phosphorus of a 1,3,2-oxazaphosphorinane ring, is reported. ## Experimental Compound (2) was recrystallized from THF to give light-yellow crystals, with m.p. 383 K; 31 P NMR
I7O NMR chemical shifts of 2-oxo-1,3,2-dioxathiane and 13 of its methyl-substituted derivatives are reported. The chemical shifts depend strongly on temperature and to a much smaller extent on concentration. As a whole, however, they strongly support the predominance of chair conformations in these