Conformational studies on the amido group. Hindered internal rotation in N,N′- dialkyl hydrazocarboxylates
✍ Scribed by Robert M. Moriarty Sr.; M.R. Murphy; S.J. Druck; Leopold May
- Publisher
- Elsevier Science
- Year
- 1967
- Tongue
- French
- Weight
- 273 KB
- Volume
- 8
- Category
- Article
- ISSN
- 0040-4039
No coin nor oath required. For personal study only.
📜 SIMILAR VOLUMES
The temperature dependence of proton hyperfine coupling (a$ of the methine group linked to the NO function of nitroxide radicals has been studied by ESR spectroscopy. The radicals studied have the structure R1N(O')C(R2)(R3)H, where Rl is a phenyl group substituted in the ortho positions and R2 and R
The hindered internal rotation of N-methylenegroups has been studied throughtheteqeraturedependeaxceofhyperfinecouplingconstants in ten different rrethylene-phenyl-nitroxide free radicals. tiels consisting of two or three equilibriumconformations in fastequilibriumwere applied. The quilibriumoonform
Recently we reported that the NMR spectra of the alkyl N-methyl-N-arylsulfonylmethylcarbamates I -III showed only temperature dependence of the signal of the ester alkyl group (1). It was suggested that the barrier to internal rotation merely involved the ester group itself since the data then avail