Solid-state oxygen-17 nuclear magnetic resonance spectroscopic study of the group 11 oxides
β Scribed by Gary L Turner; Sonu E Chung; Eric Oldfield
- Publisher
- Elsevier Science
- Year
- 1985
- Weight
- 550 KB
- Volume
- 64
- Category
- Article
- ISSN
- 0022-2364
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π SIMILAR VOLUMES
Benzoxazines derived from bisphenol-A, formaldehyde, and primary amines were characterized using 13 C solid-state NMR spectroscopy. The two 1,3benzoxazines studied in this work are 2,2Π-(3-methyl-4-dihydro-1,3,2-benzoxazine)propane, (B-m) and 2,2Π-(3-phenyl-4-dihydro-1,3,2-benzoxazine)propane (B-a).
The stereoisomerism of some methyl-substituted 1,3,2-dioxathiepanes has been investigated by I3C and \* '0 NMR spectroscopy. The effects of substituents on the conformational equilibria of the seven-membered rings are discussed and compared with those for six-membered ring sulphites.