13C NMR Spectra of tocopherols and 2,2-dimethylchromanols
1976; Elsevier BV; Volume: 32; Issue: 2 Linguagem: Inglês
10.1016/0040-4020(76)87006-8
ISSN1464-5416
Autores Tópico(s)Free Radicals and Antioxidants
ResumoCarbon-13 NMR signals have been assigned for α-γ- and δ-tocopherols,a nd their model compounds, 2,2-dimethylchromanols. The 13C spectra of α-tocopherol-5-CD3 and −8-CD3 afforded the evidence of the assignments of Me-carbon signals. It was found that previous tentative assignments for C-6 and C-8a of α-tocopherol are not correct. Steric compression shifts have been observed at several Me-carbons and at the methylene-carbons of C-4 in their compounds.
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