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Concentration dependent chemical shifts in the NMR spectrum of 3,5-dimethyl-5-nitro-tetrahydro-1,3-oxazine

✍ Scribed by T. A. Crabb; S. I. Judd


Publisher
John Wiley and Sons
Year
1970
Tongue
English
Weight
96 KB
Volume
2
Category
Article
ISSN
0749-1581

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✦ Synopsis


Abstract

The marked concentration dependence of the chemical shifts of the C2, C4 and C6 protons in 3,5‐dimethyl‐5‐nitro‐tetrahydro‐1,3‐oxazine is described.


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An NMR study of the conformational equil
✍ L. D. Hall; R. N. Johnson 📂 Article 📅 1972 🏛 John Wiley and Sons 🌐 English ⚖ 490 KB

The 'H and IBF NMR parameters of 5-fluoro-1,3-dioxan (1) dissolved in a number of solvent systems are interpreted on the basis of fast inversion between two chair conformations. In cyclohexane solution the two chair conformations are almost equally populated, whereas in more polar solvents, such as