Long-range proton-proton coupling constants between the aldehyde proton and the ring protons were used to deduce the confonnational preference of 1-naphthaldehyde, 2-naphthaldehyde, 2-hydroxy-1-naphthaldehyde, 2-methoxy-1-naphthaldehyde and 1-bromo-2-naphthaldehyde. Molecular orbital calculations at
Conformational preference of substituted naphthalenes. 2—proton–proton coupling constants of hydroxy derivatives of naphthalene
✍ Scribed by Salman R. Salman
- Publisher
- John Wiley and Sons
- Year
- 1984
- Tongue
- English
- Weight
- 250 KB
- Volume
- 22
- Category
- Article
- ISSN
- 0749-1581
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✦ Synopsis
Long-range proton-proton coupling constants between the hydroxy proton and ring protons were employed to deduce the confomtional preferences of 1-and 2-hydroxynaphthalene. 2,6-Dibromo-1,5-dihydroxynaphthalene, 2-acetyl-l-hydroxynaphthalene, 1,6-dibromo-2-hydroxynaphthalene and 2-hydroxy-1-naphthaldehyde were used as model compounds. Molecular orbital calculations at the CND0/2 and JNDO level were used to calculate the energy and the long-range proton-proton coupling of different conformers of 1and 2-hydroxynaphthalene.
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